aboutsummaryrefslogtreecommitdiff
path: root/crates/ra_ide/src
diff options
context:
space:
mode:
Diffstat (limited to 'crates/ra_ide/src')
-rw-r--r--crates/ra_ide/src/call_hierarchy.rs42
-rw-r--r--crates/ra_ide/src/call_info.rs27
-rw-r--r--crates/ra_ide/src/completion.rs4
-rw-r--r--crates/ra_ide/src/completion/complete_dot.rs4
-rw-r--r--crates/ra_ide/src/completion/complete_macro_in_item_position.rs2
-rw-r--r--crates/ra_ide/src/completion/complete_path.rs4
-rw-r--r--crates/ra_ide/src/completion/complete_pattern.rs2
-rw-r--r--crates/ra_ide/src/completion/complete_postfix.rs2
-rw-r--r--crates/ra_ide/src/completion/complete_record_literal.rs5
-rw-r--r--crates/ra_ide/src/completion/complete_record_pattern.rs5
-rw-r--r--crates/ra_ide/src/completion/complete_scope.rs4
-rw-r--r--crates/ra_ide/src/completion/complete_trait_impl.rs33
-rw-r--r--crates/ra_ide/src/completion/completion_context.rs65
-rw-r--r--crates/ra_ide/src/diagnostics.rs9
-rw-r--r--crates/ra_ide/src/display/navigation_target.rs8
-rw-r--r--crates/ra_ide/src/expand.rs102
-rw-r--r--crates/ra_ide/src/expand_macro.rs29
-rw-r--r--crates/ra_ide/src/extend_selection.rs81
-rw-r--r--crates/ra_ide/src/goto_definition.rs39
-rw-r--r--crates/ra_ide/src/goto_type_definition.rs36
-rw-r--r--crates/ra_ide/src/hover.rs93
-rw-r--r--crates/ra_ide/src/impls.rs49
-rw-r--r--crates/ra_ide/src/inlay_hints.rs48
-rw-r--r--crates/ra_ide/src/lib.rs18
-rw-r--r--crates/ra_ide/src/marks.rs1
-rw-r--r--crates/ra_ide/src/parent_module.rs17
-rw-r--r--crates/ra_ide/src/references.rs130
-rw-r--r--crates/ra_ide/src/references/classify.rs30
-rw-r--r--crates/ra_ide/src/references/rename.rs28
-rw-r--r--crates/ra_ide/src/runnables.rs50
-rw-r--r--crates/ra_ide/src/snapshots/highlighting.html52
-rw-r--r--crates/ra_ide/src/snapshots/rainbow_highlighting.html24
-rw-r--r--crates/ra_ide/src/ssr.rs141
-rw-r--r--crates/ra_ide/src/syntax_highlighting.rs392
-rw-r--r--crates/ra_ide/src/syntax_highlighting/html.rs104
-rw-r--r--crates/ra_ide/src/syntax_highlighting/tags.rs163
36 files changed, 1022 insertions, 821 deletions
diff --git a/crates/ra_ide/src/call_hierarchy.rs b/crates/ra_ide/src/call_hierarchy.rs
index 51ac59a71..b00b6d431 100644
--- a/crates/ra_ide/src/call_hierarchy.rs
+++ b/crates/ra_ide/src/call_hierarchy.rs
@@ -2,13 +2,13 @@
2 2
3use indexmap::IndexMap; 3use indexmap::IndexMap;
4 4
5use hir::db::AstDatabase; 5use hir::Semantics;
6use ra_ide_db::RootDatabase; 6use ra_ide_db::RootDatabase;
7use ra_syntax::{ast, match_ast, AstNode, TextRange}; 7use ra_syntax::{ast, match_ast, AstNode, TextRange};
8 8
9use crate::{ 9use crate::{
10 call_info::FnCallNode, display::ToNav, expand::descend_into_macros, goto_definition, 10 call_info::FnCallNode, display::ToNav, goto_definition, references, FilePosition,
11 references, FilePosition, NavigationTarget, RangeInfo, 11 NavigationTarget, RangeInfo,
12}; 12};
13 13
14#[derive(Debug, Clone)] 14#[derive(Debug, Clone)]
@@ -38,30 +38,31 @@ pub(crate) fn call_hierarchy(
38} 38}
39 39
40pub(crate) fn incoming_calls(db: &RootDatabase, position: FilePosition) -> Option<Vec<CallItem>> { 40pub(crate) fn incoming_calls(db: &RootDatabase, position: FilePosition) -> Option<Vec<CallItem>> {
41 let sema = Semantics::new(db);
41 // 1. Find all refs 42 // 1. Find all refs
42 // 2. Loop through refs and determine unique fndef. This will become our `from: CallHierarchyItem,` in the reply. 43 // 2. Loop through refs and determine unique fndef. This will become our `from: CallHierarchyItem,` in the reply.
43 // 3. Add ranges relative to the start of the fndef. 44 // 3. Add ranges relative to the start of the fndef.
44 let refs = references::find_all_refs(db, position, None)?; 45 let refs = references::find_all_refs(db, position, None)?;
45 46
46 let mut calls = CallLocations::default(); 47 let mut calls = CallLocations::default();
47 let mut sb = hir::SourceBinder::new(db);
48 48
49 for reference in refs.info.references() { 49 for reference in refs.info.references() {
50 let file_id = reference.file_range.file_id; 50 let file_id = reference.file_range.file_id;
51 let file = db.parse_or_expand(file_id.into())?; 51 let file = sema.parse(file_id);
52 let file = file.syntax();
52 let token = file.token_at_offset(reference.file_range.range.start()).next()?; 53 let token = file.token_at_offset(reference.file_range.range.start()).next()?;
53 let token = descend_into_macros(db, file_id, token); 54 let token = sema.descend_into_macros(token);
54 let syntax = token.value.parent(); 55 let syntax = token.parent();
55 56
56 // This target is the containing function 57 // This target is the containing function
57 if let Some(nav) = syntax.ancestors().find_map(|node| { 58 if let Some(nav) = syntax.ancestors().find_map(|node| {
58 match_ast! { 59 match_ast! {
59 match node { 60 match node {
60 ast::FnDef(it) => { 61 ast::FnDef(it) => {
61 let def = sb.to_def(token.with_value(it))?; 62 let def = sema.to_def(&it)?;
62 Some(def.to_nav(sb.db)) 63 Some(def.to_nav(sema.db))
63 }, 64 },
64 _ => { None }, 65 _ => None,
65 } 66 }
66 } 67 }
67 }) { 68 }) {
@@ -74,11 +75,13 @@ pub(crate) fn incoming_calls(db: &RootDatabase, position: FilePosition) -> Optio
74} 75}
75 76
76pub(crate) fn outgoing_calls(db: &RootDatabase, position: FilePosition) -> Option<Vec<CallItem>> { 77pub(crate) fn outgoing_calls(db: &RootDatabase, position: FilePosition) -> Option<Vec<CallItem>> {
78 let sema = Semantics::new(db);
77 let file_id = position.file_id; 79 let file_id = position.file_id;
78 let file = db.parse_or_expand(file_id.into())?; 80 let file = sema.parse(file_id);
81 let file = file.syntax();
79 let token = file.token_at_offset(position.offset).next()?; 82 let token = file.token_at_offset(position.offset).next()?;
80 let token = descend_into_macros(db, file_id, token); 83 let token = sema.descend_into_macros(token);
81 let syntax = token.value.parent(); 84 let syntax = token.parent();
82 85
83 let mut calls = CallLocations::default(); 86 let mut calls = CallLocations::default();
84 87
@@ -87,14 +90,11 @@ pub(crate) fn outgoing_calls(db: &RootDatabase, position: FilePosition) -> Optio
87 .filter_map(|node| FnCallNode::with_node_exact(&node)) 90 .filter_map(|node| FnCallNode::with_node_exact(&node))
88 .filter_map(|call_node| { 91 .filter_map(|call_node| {
89 let name_ref = call_node.name_ref()?; 92 let name_ref = call_node.name_ref()?;
90 let name_ref = token.with_value(name_ref.syntax());
91
92 let analyzer = hir::SourceAnalyzer::new(db, name_ref, None);
93 93
94 if let Some(func_target) = match &call_node { 94 if let Some(func_target) = match &call_node {
95 FnCallNode::CallExpr(expr) => { 95 FnCallNode::CallExpr(expr) => {
96 //FIXME: Type::as_callable is broken 96 //FIXME: Type::as_callable is broken
97 let callable_def = analyzer.type_of(db, &expr.expr()?)?.as_callable()?; 97 let callable_def = sema.type_of_expr(&expr.expr()?)?.as_callable()?;
98 match callable_def { 98 match callable_def {
99 hir::CallableDef::FunctionId(it) => { 99 hir::CallableDef::FunctionId(it) => {
100 let fn_def: hir::Function = it.into(); 100 let fn_def: hir::Function = it.into();
@@ -105,15 +105,15 @@ pub(crate) fn outgoing_calls(db: &RootDatabase, position: FilePosition) -> Optio
105 } 105 }
106 } 106 }
107 FnCallNode::MethodCallExpr(expr) => { 107 FnCallNode::MethodCallExpr(expr) => {
108 let function = analyzer.resolve_method_call(&expr)?; 108 let function = sema.resolve_method_call(&expr)?;
109 Some(function.to_nav(db)) 109 Some(function.to_nav(db))
110 } 110 }
111 FnCallNode::MacroCallExpr(expr) => { 111 FnCallNode::MacroCallExpr(macro_call) => {
112 let macro_def = analyzer.resolve_macro_call(db, name_ref.with_value(&expr))?; 112 let macro_def = sema.resolve_macro_call(&macro_call)?;
113 Some(macro_def.to_nav(db)) 113 Some(macro_def.to_nav(db))
114 } 114 }
115 } { 115 } {
116 Some((func_target, name_ref.value.text_range())) 116 Some((func_target, name_ref.syntax().text_range()))
117 } else { 117 } else {
118 None 118 None
119 } 119 }
diff --git a/crates/ra_ide/src/call_info.rs b/crates/ra_ide/src/call_info.rs
index 7c6322cb4..9a1fc0d35 100644
--- a/crates/ra_ide/src/call_info.rs
+++ b/crates/ra_ide/src/call_info.rs
@@ -1,5 +1,5 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2use hir::db::AstDatabase; 2use hir::Semantics;
3use ra_ide_db::RootDatabase; 3use ra_ide_db::RootDatabase;
4use ra_syntax::{ 4use ra_syntax::{
5 ast::{self, ArgListOwner}, 5 ast::{self, ArgListOwner},
@@ -7,24 +7,23 @@ use ra_syntax::{
7}; 7};
8use test_utils::tested_by; 8use test_utils::tested_by;
9 9
10use crate::{expand::descend_into_macros, CallInfo, FilePosition, FunctionSignature}; 10use crate::{CallInfo, FilePosition, FunctionSignature};
11 11
12/// Computes parameter information for the given call expression. 12/// Computes parameter information for the given call expression.
13pub(crate) fn call_info(db: &RootDatabase, position: FilePosition) -> Option<CallInfo> { 13pub(crate) fn call_info(db: &RootDatabase, position: FilePosition) -> Option<CallInfo> {
14 let file = db.parse_or_expand(position.file_id.into())?; 14 let sema = Semantics::new(db);
15 let file = sema.parse(position.file_id);
16 let file = file.syntax();
15 let token = file.token_at_offset(position.offset).next()?; 17 let token = file.token_at_offset(position.offset).next()?;
16 let token = descend_into_macros(db, position.file_id, token); 18 let token = sema.descend_into_macros(token);
17 19
18 // Find the calling expression and it's NameRef 20 // Find the calling expression and it's NameRef
19 let calling_node = FnCallNode::with_node(&token.value.parent())?; 21 let calling_node = FnCallNode::with_node(&token.parent())?;
20 let name_ref = calling_node.name_ref()?;
21 let name_ref = token.with_value(name_ref.syntax());
22 22
23 let analyzer = hir::SourceAnalyzer::new(db, name_ref, None);
24 let (mut call_info, has_self) = match &calling_node { 23 let (mut call_info, has_self) = match &calling_node {
25 FnCallNode::CallExpr(expr) => { 24 FnCallNode::CallExpr(call) => {
26 //FIXME: Type::as_callable is broken 25 //FIXME: Type::as_callable is broken
27 let callable_def = analyzer.type_of(db, &expr.expr()?)?.as_callable()?; 26 let callable_def = sema.type_of_expr(&call.expr()?)?.as_callable()?;
28 match callable_def { 27 match callable_def {
29 hir::CallableDef::FunctionId(it) => { 28 hir::CallableDef::FunctionId(it) => {
30 let fn_def = it.into(); 29 let fn_def = it.into();
@@ -36,12 +35,12 @@ pub(crate) fn call_info(db: &RootDatabase, position: FilePosition) -> Option<Cal
36 } 35 }
37 } 36 }
38 } 37 }
39 FnCallNode::MethodCallExpr(expr) => { 38 FnCallNode::MethodCallExpr(method_call) => {
40 let function = analyzer.resolve_method_call(&expr)?; 39 let function = sema.resolve_method_call(&method_call)?;
41 (CallInfo::with_fn(db, function), function.has_self_param(db)) 40 (CallInfo::with_fn(db, function), function.has_self_param(db))
42 } 41 }
43 FnCallNode::MacroCallExpr(expr) => { 42 FnCallNode::MacroCallExpr(macro_call) => {
44 let macro_def = analyzer.resolve_macro_call(db, name_ref.with_value(&expr))?; 43 let macro_def = sema.resolve_macro_call(&macro_call)?;
45 (CallInfo::with_macro(db, macro_def)?, false) 44 (CallInfo::with_macro(db, macro_def)?, false)
46 } 45 }
47 }; 46 };
diff --git a/crates/ra_ide/src/completion.rs b/crates/ra_ide/src/completion.rs
index 4bdc6ba23..c378c2c62 100644
--- a/crates/ra_ide/src/completion.rs
+++ b/crates/ra_ide/src/completion.rs
@@ -17,7 +17,6 @@ mod complete_postfix;
17mod complete_macro_in_item_position; 17mod complete_macro_in_item_position;
18mod complete_trait_impl; 18mod complete_trait_impl;
19 19
20use ra_db::SourceDatabase;
21use ra_ide_db::RootDatabase; 20use ra_ide_db::RootDatabase;
22 21
23#[cfg(test)] 22#[cfg(test)]
@@ -57,8 +56,7 @@ pub use crate::completion::completion_item::{
57/// identifier prefix/fuzzy match should be done higher in the stack, together 56/// identifier prefix/fuzzy match should be done higher in the stack, together
58/// with ordering of completions (currently this is done by the client). 57/// with ordering of completions (currently this is done by the client).
59pub(crate) fn completions(db: &RootDatabase, position: FilePosition) -> Option<Completions> { 58pub(crate) fn completions(db: &RootDatabase, position: FilePosition) -> Option<Completions> {
60 let original_parse = db.parse(position.file_id); 59 let ctx = CompletionContext::new(db, position)?;
61 let ctx = CompletionContext::new(db, &original_parse, position)?;
62 60
63 let mut acc = Completions::default(); 61 let mut acc = Completions::default();
64 62
diff --git a/crates/ra_ide/src/completion/complete_dot.rs b/crates/ra_ide/src/completion/complete_dot.rs
index 2ca78c927..a6e0158b2 100644
--- a/crates/ra_ide/src/completion/complete_dot.rs
+++ b/crates/ra_ide/src/completion/complete_dot.rs
@@ -16,7 +16,7 @@ pub(super) fn complete_dot(acc: &mut Completions, ctx: &CompletionContext) {
16 _ => return, 16 _ => return,
17 }; 17 };
18 18
19 let receiver_ty = match ctx.analyzer.type_of(ctx.db, &dot_receiver) { 19 let receiver_ty = match ctx.sema.type_of_expr(&dot_receiver) {
20 Some(ty) => ty, 20 Some(ty) => ty,
21 _ => return, 21 _ => return,
22 }; 22 };
@@ -55,7 +55,7 @@ fn complete_fields(acc: &mut Completions, ctx: &CompletionContext, receiver: &Ty
55fn complete_methods(acc: &mut Completions, ctx: &CompletionContext, receiver: &Type) { 55fn complete_methods(acc: &mut Completions, ctx: &CompletionContext, receiver: &Type) {
56 if let Some(krate) = ctx.module.map(|it| it.krate()) { 56 if let Some(krate) = ctx.module.map(|it| it.krate()) {
57 let mut seen_methods = FxHashSet::default(); 57 let mut seen_methods = FxHashSet::default();
58 let traits_in_scope = ctx.analyzer.traits_in_scope(ctx.db); 58 let traits_in_scope = ctx.scope().traits_in_scope();
59 receiver.iterate_method_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, func| { 59 receiver.iterate_method_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, func| {
60 if func.has_self_param(ctx.db) && seen_methods.insert(func.name(ctx.db)) { 60 if func.has_self_param(ctx.db) && seen_methods.insert(func.name(ctx.db)) {
61 acc.add_function(ctx, func); 61 acc.add_function(ctx, func);
diff --git a/crates/ra_ide/src/completion/complete_macro_in_item_position.rs b/crates/ra_ide/src/completion/complete_macro_in_item_position.rs
index faadd1e3f..1866d9e6c 100644
--- a/crates/ra_ide/src/completion/complete_macro_in_item_position.rs
+++ b/crates/ra_ide/src/completion/complete_macro_in_item_position.rs
@@ -5,7 +5,7 @@ use crate::completion::{CompletionContext, Completions};
5pub(super) fn complete_macro_in_item_position(acc: &mut Completions, ctx: &CompletionContext) { 5pub(super) fn complete_macro_in_item_position(acc: &mut Completions, ctx: &CompletionContext) {
6 // Show only macros in top level. 6 // Show only macros in top level.
7 if ctx.is_new_item { 7 if ctx.is_new_item {
8 ctx.analyzer.process_all_names(ctx.db, &mut |name, res| { 8 ctx.scope().process_all_names(&mut |name, res| {
9 if let hir::ScopeDef::MacroDef(mac) = res { 9 if let hir::ScopeDef::MacroDef(mac) = res {
10 acc.add_macro(ctx, Some(name.to_string()), mac); 10 acc.add_macro(ctx, Some(name.to_string()), mac);
11 } 11 }
diff --git a/crates/ra_ide/src/completion/complete_path.rs b/crates/ra_ide/src/completion/complete_path.rs
index 2d7f09a6c..c626e90cc 100644
--- a/crates/ra_ide/src/completion/complete_path.rs
+++ b/crates/ra_ide/src/completion/complete_path.rs
@@ -11,7 +11,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
11 Some(path) => path.clone(), 11 Some(path) => path.clone(),
12 _ => return, 12 _ => return,
13 }; 13 };
14 let def = match ctx.analyzer.resolve_hir_path(ctx.db, &path) { 14 let def = match ctx.scope().resolve_hir_path(&path) {
15 Some(PathResolution::Def(def)) => def, 15 Some(PathResolution::Def(def)) => def,
16 _ => return, 16 _ => return,
17 }; 17 };
@@ -49,7 +49,7 @@ pub(super) fn complete_path(acc: &mut Completions, ctx: &CompletionContext) {
49 // FIXME: complete T::AssocType 49 // FIXME: complete T::AssocType
50 let krate = ctx.module.map(|m| m.krate()); 50 let krate = ctx.module.map(|m| m.krate());
51 if let Some(krate) = krate { 51 if let Some(krate) = krate {
52 let traits_in_scope = ctx.analyzer.traits_in_scope(ctx.db); 52 let traits_in_scope = ctx.scope().traits_in_scope();
53 ty.iterate_path_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, item| { 53 ty.iterate_path_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, item| {
54 match item { 54 match item {
55 hir::AssocItem::Function(func) => { 55 hir::AssocItem::Function(func) => {
diff --git a/crates/ra_ide/src/completion/complete_pattern.rs b/crates/ra_ide/src/completion/complete_pattern.rs
index fd03b1c40..c2c6ca002 100644
--- a/crates/ra_ide/src/completion/complete_pattern.rs
+++ b/crates/ra_ide/src/completion/complete_pattern.rs
@@ -9,7 +9,7 @@ pub(super) fn complete_pattern(acc: &mut Completions, ctx: &CompletionContext) {
9 } 9 }
10 // FIXME: ideally, we should look at the type we are matching against and 10 // FIXME: ideally, we should look at the type we are matching against and
11 // suggest variants + auto-imports 11 // suggest variants + auto-imports
12 ctx.analyzer.process_all_names(ctx.db, &mut |name, res| { 12 ctx.scope().process_all_names(&mut |name, res| {
13 let def = match &res { 13 let def = match &res {
14 hir::ScopeDef::ModuleDef(def) => def, 14 hir::ScopeDef::ModuleDef(def) => def,
15 _ => return, 15 _ => return,
diff --git a/crates/ra_ide/src/completion/complete_postfix.rs b/crates/ra_ide/src/completion/complete_postfix.rs
index 5470dc291..8a74f993a 100644
--- a/crates/ra_ide/src/completion/complete_postfix.rs
+++ b/crates/ra_ide/src/completion/complete_postfix.rs
@@ -29,7 +29,7 @@ pub(super) fn complete_postfix(acc: &mut Completions, ctx: &CompletionContext) {
29 dot_receiver.syntax().text().to_string() 29 dot_receiver.syntax().text().to_string()
30 }; 30 };
31 31
32 let receiver_ty = match ctx.analyzer.type_of(ctx.db, &dot_receiver) { 32 let receiver_ty = match ctx.sema.type_of_expr(&dot_receiver) {
33 Some(it) => it, 33 Some(it) => it,
34 None => return, 34 None => return,
35 }; 35 };
diff --git a/crates/ra_ide/src/completion/complete_record_literal.rs b/crates/ra_ide/src/completion/complete_record_literal.rs
index 577c394d2..f98353d76 100644
--- a/crates/ra_ide/src/completion/complete_record_literal.rs
+++ b/crates/ra_ide/src/completion/complete_record_literal.rs
@@ -5,10 +5,7 @@ use crate::completion::{CompletionContext, Completions};
5/// Complete fields in fields literals. 5/// Complete fields in fields literals.
6pub(super) fn complete_record_literal(acc: &mut Completions, ctx: &CompletionContext) { 6pub(super) fn complete_record_literal(acc: &mut Completions, ctx: &CompletionContext) {
7 let (ty, variant) = match ctx.record_lit_syntax.as_ref().and_then(|it| { 7 let (ty, variant) = match ctx.record_lit_syntax.as_ref().and_then(|it| {
8 Some(( 8 Some((ctx.sema.type_of_expr(&it.clone().into())?, ctx.sema.resolve_record_literal(it)?))
9 ctx.analyzer.type_of(ctx.db, &it.clone().into())?,
10 ctx.analyzer.resolve_record_literal(it)?,
11 ))
12 }) { 9 }) {
13 Some(it) => it, 10 Some(it) => it,
14 _ => return, 11 _ => return,
diff --git a/crates/ra_ide/src/completion/complete_record_pattern.rs b/crates/ra_ide/src/completion/complete_record_pattern.rs
index a56c7e3a1..9bdeae49f 100644
--- a/crates/ra_ide/src/completion/complete_record_pattern.rs
+++ b/crates/ra_ide/src/completion/complete_record_pattern.rs
@@ -4,10 +4,7 @@ use crate::completion::{CompletionContext, Completions};
4 4
5pub(super) fn complete_record_pattern(acc: &mut Completions, ctx: &CompletionContext) { 5pub(super) fn complete_record_pattern(acc: &mut Completions, ctx: &CompletionContext) {
6 let (ty, variant) = match ctx.record_lit_pat.as_ref().and_then(|it| { 6 let (ty, variant) = match ctx.record_lit_pat.as_ref().and_then(|it| {
7 Some(( 7 Some((ctx.sema.type_of_pat(&it.clone().into())?, ctx.sema.resolve_record_pattern(it)?))
8 ctx.analyzer.type_of_pat(ctx.db, &it.clone().into())?,
9 ctx.analyzer.resolve_record_pattern(it)?,
10 ))
11 }) { 8 }) {
12 Some(it) => it, 9 Some(it) => it,
13 _ => return, 10 _ => return,
diff --git a/crates/ra_ide/src/completion/complete_scope.rs b/crates/ra_ide/src/completion/complete_scope.rs
index e2ee86dd1..aad016d4a 100644
--- a/crates/ra_ide/src/completion/complete_scope.rs
+++ b/crates/ra_ide/src/completion/complete_scope.rs
@@ -7,9 +7,7 @@ pub(super) fn complete_scope(acc: &mut Completions, ctx: &CompletionContext) {
7 return; 7 return;
8 } 8 }
9 9
10 ctx.analyzer.process_all_names(ctx.db, &mut |name, res| { 10 ctx.scope().process_all_names(&mut |name, res| acc.add_resolution(ctx, name.to_string(), &res));
11 acc.add_resolution(ctx, name.to_string(), &res)
12 });
13} 11}
14 12
15#[cfg(test)] 13#[cfg(test)]
diff --git a/crates/ra_ide/src/completion/complete_trait_impl.rs b/crates/ra_ide/src/completion/complete_trait_impl.rs
index 83628e35c..9a27c164b 100644
--- a/crates/ra_ide/src/completion/complete_trait_impl.rs
+++ b/crates/ra_ide/src/completion/complete_trait_impl.rs
@@ -64,11 +64,12 @@ pub(crate) fn complete_trait_impl(acc: &mut Completions, ctx: &CompletionContext
64 if let (Some(trigger), Some(impl_block)) = (trigger, impl_block) { 64 if let (Some(trigger), Some(impl_block)) = (trigger, impl_block) {
65 match trigger.kind() { 65 match trigger.kind() {
66 SyntaxKind::FN_DEF => { 66 SyntaxKind::FN_DEF => {
67 for missing_fn in get_missing_impl_items(ctx.db, &ctx.analyzer, &impl_block) 67 for missing_fn in
68 .iter() 68 get_missing_impl_items(&ctx.sema, &impl_block).iter().filter_map(|item| {
69 .filter_map(|item| match item { 69 match item {
70 hir::AssocItem::Function(fn_item) => Some(fn_item), 70 hir::AssocItem::Function(fn_item) => Some(fn_item),
71 _ => None, 71 _ => None,
72 }
72 }) 73 })
73 { 74 {
74 add_function_impl(&trigger, acc, ctx, &missing_fn); 75 add_function_impl(&trigger, acc, ctx, &missing_fn);
@@ -76,11 +77,12 @@ pub(crate) fn complete_trait_impl(acc: &mut Completions, ctx: &CompletionContext
76 } 77 }
77 78
78 SyntaxKind::TYPE_ALIAS_DEF => { 79 SyntaxKind::TYPE_ALIAS_DEF => {
79 for missing_fn in get_missing_impl_items(ctx.db, &ctx.analyzer, &impl_block) 80 for missing_fn in
80 .iter() 81 get_missing_impl_items(&ctx.sema, &impl_block).iter().filter_map(|item| {
81 .filter_map(|item| match item { 82 match item {
82 hir::AssocItem::TypeAlias(type_item) => Some(type_item), 83 hir::AssocItem::TypeAlias(type_item) => Some(type_item),
83 _ => None, 84 _ => None,
85 }
84 }) 86 })
85 { 87 {
86 add_type_alias_impl(&trigger, acc, ctx, &missing_fn); 88 add_type_alias_impl(&trigger, acc, ctx, &missing_fn);
@@ -88,11 +90,12 @@ pub(crate) fn complete_trait_impl(acc: &mut Completions, ctx: &CompletionContext
88 } 90 }
89 91
90 SyntaxKind::CONST_DEF => { 92 SyntaxKind::CONST_DEF => {
91 for missing_fn in get_missing_impl_items(ctx.db, &ctx.analyzer, &impl_block) 93 for missing_fn in
92 .iter() 94 get_missing_impl_items(&ctx.sema, &impl_block).iter().filter_map(|item| {
93 .filter_map(|item| match item { 95 match item {
94 hir::AssocItem::Const(const_item) => Some(const_item), 96 hir::AssocItem::Const(const_item) => Some(const_item),
95 _ => None, 97 _ => None,
98 }
96 }) 99 })
97 { 100 {
98 add_const_impl(&trigger, acc, ctx, &missing_fn); 101 add_const_impl(&trigger, acc, ctx, &missing_fn);
diff --git a/crates/ra_ide/src/completion/completion_context.rs b/crates/ra_ide/src/completion/completion_context.rs
index 8678a3234..81321a897 100644
--- a/crates/ra_ide/src/completion/completion_context.rs
+++ b/crates/ra_ide/src/completion/completion_context.rs
@@ -1,9 +1,11 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{Semantics, SemanticsScope};
4use ra_db::SourceDatabase;
3use ra_ide_db::RootDatabase; 5use ra_ide_db::RootDatabase;
4use ra_syntax::{ 6use ra_syntax::{
5 algo::{find_covering_element, find_node_at_offset}, 7 algo::{find_covering_element, find_node_at_offset},
6 ast, AstNode, Parse, SourceFile, 8 ast, AstNode, SourceFile,
7 SyntaxKind::*, 9 SyntaxKind::*,
8 SyntaxNode, SyntaxToken, TextRange, TextUnit, 10 SyntaxNode, SyntaxToken, TextRange, TextUnit,
9}; 11};
@@ -15,8 +17,8 @@ use crate::FilePosition;
15/// exactly is the cursor, syntax-wise. 17/// exactly is the cursor, syntax-wise.
16#[derive(Debug)] 18#[derive(Debug)]
17pub(crate) struct CompletionContext<'a> { 19pub(crate) struct CompletionContext<'a> {
20 pub(super) sema: Semantics<'a, RootDatabase>,
18 pub(super) db: &'a RootDatabase, 21 pub(super) db: &'a RootDatabase,
19 pub(super) analyzer: hir::SourceAnalyzer,
20 pub(super) offset: TextUnit, 22 pub(super) offset: TextUnit,
21 pub(super) token: SyntaxToken, 23 pub(super) token: SyntaxToken,
22 pub(super) module: Option<hir::Module>, 24 pub(super) module: Option<hir::Module>,
@@ -51,20 +53,26 @@ pub(crate) struct CompletionContext<'a> {
51impl<'a> CompletionContext<'a> { 53impl<'a> CompletionContext<'a> {
52 pub(super) fn new( 54 pub(super) fn new(
53 db: &'a RootDatabase, 55 db: &'a RootDatabase,
54 original_parse: &'a Parse<ast::SourceFile>,
55 position: FilePosition, 56 position: FilePosition,
56 ) -> Option<CompletionContext<'a>> { 57 ) -> Option<CompletionContext<'a>> {
57 let mut sb = hir::SourceBinder::new(db); 58 let sema = Semantics::new(db);
58 let module = sb.to_module_def(position.file_id); 59
59 let token = 60 let original_file = sema.parse(position.file_id);
60 original_parse.tree().syntax().token_at_offset(position.offset).left_biased()?; 61
61 let analyzer = sb.analyze( 62 // Insert a fake ident to get a valid parse tree. We will use this file
62 hir::InFile::new(position.file_id.into(), &token.parent()), 63 // to determine context, though the original_file will be used for
63 Some(position.offset), 64 // actual completion.
64 ); 65 let file_with_fake_ident = {
66 let parse = db.parse(position.file_id);
67 let edit = AtomTextEdit::insert(position.offset, "intellijRulezz".to_string());
68 parse.reparse(&edit).tree()
69 };
70
71 let module = sema.to_module_def(position.file_id);
72 let token = original_file.syntax().token_at_offset(position.offset).left_biased()?;
65 let mut ctx = CompletionContext { 73 let mut ctx = CompletionContext {
74 sema,
66 db, 75 db,
67 analyzer,
68 token, 76 token,
69 offset: position.offset, 77 offset: position.offset,
70 module, 78 module,
@@ -87,7 +95,7 @@ impl<'a> CompletionContext<'a> {
87 has_type_args: false, 95 has_type_args: false,
88 dot_receiver_is_ambiguous_float_literal: false, 96 dot_receiver_is_ambiguous_float_literal: false,
89 }; 97 };
90 ctx.fill(&original_parse, position.offset); 98 ctx.fill(&original_file, file_with_fake_ident, position.offset);
91 Some(ctx) 99 Some(ctx)
92 } 100 }
93 101
@@ -100,29 +108,33 @@ impl<'a> CompletionContext<'a> {
100 } 108 }
101 } 109 }
102 110
103 fn fill(&mut self, original_parse: &'a Parse<ast::SourceFile>, offset: TextUnit) { 111 pub(crate) fn scope(&self) -> SemanticsScope<'_, RootDatabase> {
104 // Insert a fake ident to get a valid parse tree. We will use this file 112 self.sema.scope_at_offset(&self.token.parent(), self.offset)
105 // to determine context, though the original_file will be used for 113 }
106 // actual completion.
107 let file = {
108 let edit = AtomTextEdit::insert(offset, "intellijRulezz".to_string());
109 original_parse.reparse(&edit).tree()
110 };
111 114
115 fn fill(
116 &mut self,
117 original_file: &ast::SourceFile,
118 file_with_fake_ident: ast::SourceFile,
119 offset: TextUnit,
120 ) {
112 // First, let's try to complete a reference to some declaration. 121 // First, let's try to complete a reference to some declaration.
113 if let Some(name_ref) = find_node_at_offset::<ast::NameRef>(file.syntax(), offset) { 122 if let Some(name_ref) =
123 find_node_at_offset::<ast::NameRef>(file_with_fake_ident.syntax(), offset)
124 {
114 // Special case, `trait T { fn foo(i_am_a_name_ref) {} }`. 125 // Special case, `trait T { fn foo(i_am_a_name_ref) {} }`.
115 // See RFC#1685. 126 // See RFC#1685.
116 if is_node::<ast::Param>(name_ref.syntax()) { 127 if is_node::<ast::Param>(name_ref.syntax()) {
117 self.is_param = true; 128 self.is_param = true;
118 return; 129 return;
119 } 130 }
120 self.classify_name_ref(original_parse.tree(), name_ref); 131 self.classify_name_ref(original_file, name_ref);
121 } 132 }
122 133
123 // Otherwise, see if this is a declaration. We can use heuristics to 134 // Otherwise, see if this is a declaration. We can use heuristics to
124 // suggest declaration names, see `CompletionKind::Magic`. 135 // suggest declaration names, see `CompletionKind::Magic`.
125 if let Some(name) = find_node_at_offset::<ast::Name>(file.syntax(), offset) { 136 if let Some(name) = find_node_at_offset::<ast::Name>(file_with_fake_ident.syntax(), offset)
137 {
126 if let Some(bind_pat) = name.syntax().ancestors().find_map(ast::BindPat::cast) { 138 if let Some(bind_pat) = name.syntax().ancestors().find_map(ast::BindPat::cast) {
127 let parent = bind_pat.syntax().parent(); 139 let parent = bind_pat.syntax().parent();
128 if parent.clone().and_then(ast::MatchArm::cast).is_some() 140 if parent.clone().and_then(ast::MatchArm::cast).is_some()
@@ -136,13 +148,12 @@ impl<'a> CompletionContext<'a> {
136 return; 148 return;
137 } 149 }
138 if name.syntax().ancestors().find_map(ast::RecordFieldPatList::cast).is_some() { 150 if name.syntax().ancestors().find_map(ast::RecordFieldPatList::cast).is_some() {
139 self.record_lit_pat = 151 self.record_lit_pat = find_node_at_offset(original_file.syntax(), self.offset);
140 find_node_at_offset(original_parse.tree().syntax(), self.offset);
141 } 152 }
142 } 153 }
143 } 154 }
144 155
145 fn classify_name_ref(&mut self, original_file: SourceFile, name_ref: ast::NameRef) { 156 fn classify_name_ref(&mut self, original_file: &SourceFile, name_ref: ast::NameRef) {
146 self.name_ref_syntax = 157 self.name_ref_syntax =
147 find_node_at_offset(original_file.syntax(), name_ref.syntax().text_range().start()); 158 find_node_at_offset(original_file.syntax(), name_ref.syntax().text_range().start());
148 let name_range = name_ref.syntax().text_range(); 159 let name_range = name_ref.syntax().text_range();
diff --git a/crates/ra_ide/src/diagnostics.rs b/crates/ra_ide/src/diagnostics.rs
index 9cf86b26d..a52f7fdd9 100644
--- a/crates/ra_ide/src/diagnostics.rs
+++ b/crates/ra_ide/src/diagnostics.rs
@@ -2,7 +2,10 @@
2 2
3use std::cell::RefCell; 3use std::cell::RefCell;
4 4
5use hir::diagnostics::{AstDiagnostic, Diagnostic as _, DiagnosticSink}; 5use hir::{
6 diagnostics::{AstDiagnostic, Diagnostic as _, DiagnosticSink},
7 Semantics,
8};
6use itertools::Itertools; 9use itertools::Itertools;
7use ra_db::{RelativePath, SourceDatabase, SourceDatabaseExt}; 10use ra_db::{RelativePath, SourceDatabase, SourceDatabaseExt};
8use ra_ide_db::RootDatabase; 11use ra_ide_db::RootDatabase;
@@ -24,7 +27,7 @@ pub enum Severity {
24 27
25pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic> { 28pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic> {
26 let _p = profile("diagnostics"); 29 let _p = profile("diagnostics");
27 let mut sb = hir::SourceBinder::new(db); 30 let sema = Semantics::new(db);
28 let parse = db.parse(file_id); 31 let parse = db.parse(file_id);
29 let mut res = Vec::new(); 32 let mut res = Vec::new();
30 33
@@ -110,7 +113,7 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
110 fix: Some(fix), 113 fix: Some(fix),
111 }) 114 })
112 }); 115 });
113 if let Some(m) = sb.to_module_def(file_id) { 116 if let Some(m) = sema.to_module_def(file_id) {
114 m.diagnostics(db, &mut sink); 117 m.diagnostics(db, &mut sink);
115 }; 118 };
116 drop(sink); 119 drop(sink);
diff --git a/crates/ra_ide/src/display/navigation_target.rs b/crates/ra_ide/src/display/navigation_target.rs
index c9d0058a6..5afb23764 100644
--- a/crates/ra_ide/src/display/navigation_target.rs
+++ b/crates/ra_ide/src/display/navigation_target.rs
@@ -1,7 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use either::Either; 3use either::Either;
4use hir::{AssocItem, FieldSource, HasSource, InFile, ModuleSource}; 4use hir::{original_range, AssocItem, FieldSource, HasSource, InFile, ModuleSource};
5use ra_db::{FileId, SourceDatabase}; 5use ra_db::{FileId, SourceDatabase};
6use ra_ide_db::RootDatabase; 6use ra_ide_db::RootDatabase;
7use ra_syntax::{ 7use ra_syntax::{
@@ -11,7 +11,11 @@ use ra_syntax::{
11 TextRange, 11 TextRange,
12}; 12};
13 13
14use crate::{expand::original_range, references::NameDefinition, FileSymbol}; 14use crate::{
15 // expand::original_range,
16 references::NameDefinition,
17 FileSymbol,
18};
15 19
16use super::short_label::ShortLabel; 20use super::short_label::ShortLabel;
17 21
diff --git a/crates/ra_ide/src/expand.rs b/crates/ra_ide/src/expand.rs
deleted file mode 100644
index 9f3aaa3a3..000000000
--- a/crates/ra_ide/src/expand.rs
+++ /dev/null
@@ -1,102 +0,0 @@
1//! Utilities to work with files, produced by macros.
2use std::iter::successors;
3
4use hir::{InFile, Origin};
5use ra_db::FileId;
6use ra_ide_db::RootDatabase;
7use ra_syntax::{ast, AstNode, SyntaxNode, SyntaxToken, TextRange};
8
9use crate::FileRange;
10
11pub(crate) fn original_range(db: &RootDatabase, node: InFile<&SyntaxNode>) -> FileRange {
12 if let Some((range, Origin::Call)) = original_range_and_origin(db, node) {
13 return range;
14 }
15
16 if let Some(expansion) = node.file_id.expansion_info(db) {
17 if let Some(call_node) = expansion.call_node() {
18 return FileRange {
19 file_id: call_node.file_id.original_file(db),
20 range: call_node.value.text_range(),
21 };
22 }
23 }
24
25 FileRange { file_id: node.file_id.original_file(db), range: node.value.text_range() }
26}
27
28fn original_range_and_origin(
29 db: &RootDatabase,
30 node: InFile<&SyntaxNode>,
31) -> Option<(FileRange, Origin)> {
32 let expansion = node.file_id.expansion_info(db)?;
33
34 // the input node has only one token ?
35 let single = node.value.first_token()? == node.value.last_token()?;
36
37 // FIXME: We should handle recurside macro expansions
38 let (range, origin) = node.value.descendants().find_map(|it| {
39 let first = it.first_token()?;
40 let last = it.last_token()?;
41
42 if !single && first == last {
43 return None;
44 }
45
46 // Try to map first and last tokens of node, and, if success, return the union range of mapped tokens
47 let (first, first_origin) = expansion.map_token_up(node.with_value(&first))?;
48 let (last, last_origin) = expansion.map_token_up(node.with_value(&last))?;
49
50 if first.file_id != last.file_id || first_origin != last_origin {
51 return None;
52 }
53
54 // FIXME: Add union method in TextRange
55 Some((
56 first.with_value(union_range(first.value.text_range(), last.value.text_range())),
57 first_origin,
58 ))
59 })?;
60
61 return Some((
62 FileRange { file_id: range.file_id.original_file(db), range: range.value },
63 origin,
64 ));
65
66 fn union_range(a: TextRange, b: TextRange) -> TextRange {
67 let start = a.start().min(b.start());
68 let end = a.end().max(b.end());
69 TextRange::from_to(start, end)
70 }
71}
72
73pub(crate) fn descend_into_macros(
74 db: &RootDatabase,
75 file_id: FileId,
76 token: SyntaxToken,
77) -> InFile<SyntaxToken> {
78 let src = InFile::new(file_id.into(), token);
79
80 let source_analyzer =
81 hir::SourceAnalyzer::new(db, src.with_value(src.value.parent()).as_ref(), None);
82
83 descend_into_macros_with_analyzer(db, &source_analyzer, src)
84}
85
86pub(crate) fn descend_into_macros_with_analyzer(
87 db: &RootDatabase,
88 source_analyzer: &hir::SourceAnalyzer,
89 src: InFile<SyntaxToken>,
90) -> InFile<SyntaxToken> {
91 successors(Some(src), |token| {
92 let macro_call = token.value.ancestors().find_map(ast::MacroCall::cast)?;
93 let tt = macro_call.token_tree()?;
94 if !token.value.text_range().is_subrange(&tt.syntax().text_range()) {
95 return None;
96 }
97 let exp = source_analyzer.expand(db, token.with_value(&macro_call))?;
98 exp.map_token_down(db, token.as_ref())
99 })
100 .last()
101 .unwrap()
102}
diff --git a/crates/ra_ide/src/expand_macro.rs b/crates/ra_ide/src/expand_macro.rs
index af2783bef..f2814e684 100644
--- a/crates/ra_ide/src/expand_macro.rs
+++ b/crates/ra_ide/src/expand_macro.rs
@@ -1,7 +1,6 @@
1//! This modules implements "expand macro" functionality in the IDE 1//! This modules implements "expand macro" functionality in the IDE
2 2
3use hir::db::AstDatabase; 3use hir::Semantics;
4use ra_db::SourceDatabase;
5use ra_ide_db::RootDatabase; 4use ra_ide_db::RootDatabase;
6use ra_syntax::{ 5use ra_syntax::{
7 algo::{find_node_at_offset, replace_descendants}, 6 algo::{find_node_at_offset, replace_descendants},
@@ -17,13 +16,12 @@ pub struct ExpandedMacro {
17} 16}
18 17
19pub(crate) fn expand_macro(db: &RootDatabase, position: FilePosition) -> Option<ExpandedMacro> { 18pub(crate) fn expand_macro(db: &RootDatabase, position: FilePosition) -> Option<ExpandedMacro> {
20 let parse = db.parse(position.file_id); 19 let sema = Semantics::new(db);
21 let file = parse.tree(); 20 let file = sema.parse(position.file_id);
22 let name_ref = find_node_at_offset::<ast::NameRef>(file.syntax(), position.offset)?; 21 let name_ref = find_node_at_offset::<ast::NameRef>(file.syntax(), position.offset)?;
23 let mac = name_ref.syntax().ancestors().find_map(ast::MacroCall::cast)?; 22 let mac = name_ref.syntax().ancestors().find_map(ast::MacroCall::cast)?;
24 23
25 let source = hir::InFile::new(position.file_id.into(), mac.syntax()); 24 let expanded = expand_macro_recur(&sema, &mac)?;
26 let expanded = expand_macro_recur(db, source, source.with_value(&mac))?;
27 25
28 // FIXME: 26 // FIXME:
29 // macro expansion may lose all white space information 27 // macro expansion may lose all white space information
@@ -33,21 +31,16 @@ pub(crate) fn expand_macro(db: &RootDatabase, position: FilePosition) -> Option<
33} 31}
34 32
35fn expand_macro_recur( 33fn expand_macro_recur(
36 db: &RootDatabase, 34 sema: &Semantics<RootDatabase>,
37 source: hir::InFile<&SyntaxNode>, 35 macro_call: &ast::MacroCall,
38 macro_call: hir::InFile<&ast::MacroCall>,
39) -> Option<SyntaxNode> { 36) -> Option<SyntaxNode> {
40 let analyzer = hir::SourceAnalyzer::new(db, source, None); 37 let mut expanded = sema.expand(macro_call)?;
41 let expansion = analyzer.expand(db, macro_call)?;
42 let macro_file_id = expansion.file_id();
43 let mut expanded: SyntaxNode = db.parse_or_expand(macro_file_id)?;
44 38
45 let children = expanded.descendants().filter_map(ast::MacroCall::cast); 39 let children = expanded.descendants().filter_map(ast::MacroCall::cast);
46 let mut replaces: FxHashMap<SyntaxElement, SyntaxElement> = FxHashMap::default(); 40 let mut replaces: FxHashMap<SyntaxElement, SyntaxElement> = FxHashMap::default();
47 41
48 for child in children.into_iter() { 42 for child in children.into_iter() {
49 let node = hir::InFile::new(macro_file_id, &child); 43 if let Some(new_node) = expand_macro_recur(sema, &child) {
50 if let Some(new_node) = expand_macro_recur(db, source, node) {
51 // Replace the whole node if it is root 44 // Replace the whole node if it is root
52 // `replace_descendants` will not replace the parent node 45 // `replace_descendants` will not replace the parent node
53 // but `SyntaxNode::descendants include itself 46 // but `SyntaxNode::descendants include itself
@@ -120,10 +113,12 @@ fn insert_whitespaces(syn: SyntaxNode) -> String {
120 113
121#[cfg(test)] 114#[cfg(test)]
122mod tests { 115mod tests {
123 use super::*;
124 use crate::mock_analysis::analysis_and_position;
125 use insta::assert_snapshot; 116 use insta::assert_snapshot;
126 117
118 use crate::mock_analysis::analysis_and_position;
119
120 use super::*;
121
127 fn check_expand_macro(fixture: &str) -> ExpandedMacro { 122 fn check_expand_macro(fixture: &str) -> ExpandedMacro {
128 let (analysis, pos) = analysis_and_position(fixture); 123 let (analysis, pos) = analysis_and_position(fixture);
129 analysis.expand_macro(pos).unwrap().unwrap() 124 analysis.expand_macro(pos).unwrap().unwrap()
diff --git a/crates/ra_ide/src/extend_selection.rs b/crates/ra_ide/src/extend_selection.rs
index 1e7d0621a..f5a063351 100644
--- a/crates/ra_ide/src/extend_selection.rs
+++ b/crates/ra_ide/src/extend_selection.rs
@@ -2,26 +2,26 @@
2 2
3use std::iter::successors; 3use std::iter::successors;
4 4
5use hir::db::AstDatabase; 5use hir::Semantics;
6use ra_db::SourceDatabase;
7use ra_ide_db::RootDatabase; 6use ra_ide_db::RootDatabase;
8use ra_syntax::{ 7use ra_syntax::{
9 algo::find_covering_element, 8 algo::{self, find_covering_element, skip_trivia_token},
10 ast::{self, AstNode, AstToken}, 9 ast::{self, AstNode, AstToken},
11 Direction, NodeOrToken, SyntaxElement, 10 Direction, NodeOrToken,
12 SyntaxKind::{self, *}, 11 SyntaxKind::{self, *},
13 SyntaxNode, SyntaxToken, TextRange, TextUnit, TokenAtOffset, T, 12 SyntaxNode, SyntaxToken, TextRange, TextUnit, TokenAtOffset, T,
14}; 13};
15 14
16use crate::{expand::descend_into_macros, FileId, FileRange}; 15use crate::FileRange;
17 16
18pub(crate) fn extend_selection(db: &RootDatabase, frange: FileRange) -> TextRange { 17pub(crate) fn extend_selection(db: &RootDatabase, frange: FileRange) -> TextRange {
19 let src = db.parse(frange.file_id).tree(); 18 let sema = Semantics::new(db);
20 try_extend_selection(db, src.syntax(), frange).unwrap_or(frange.range) 19 let src = sema.parse(frange.file_id);
20 try_extend_selection(&sema, src.syntax(), frange).unwrap_or(frange.range)
21} 21}
22 22
23fn try_extend_selection( 23fn try_extend_selection(
24 db: &RootDatabase, 24 sema: &Semantics<RootDatabase>,
25 root: &SyntaxNode, 25 root: &SyntaxNode,
26 frange: FileRange, 26 frange: FileRange,
27) -> Option<TextRange> { 27) -> Option<TextRange> {
@@ -86,7 +86,7 @@ fn try_extend_selection(
86 // if we are in single token_tree, we maybe live in macro or attr 86 // if we are in single token_tree, we maybe live in macro or attr
87 if node.kind() == TOKEN_TREE { 87 if node.kind() == TOKEN_TREE {
88 if let Some(macro_call) = node.ancestors().find_map(ast::MacroCall::cast) { 88 if let Some(macro_call) = node.ancestors().find_map(ast::MacroCall::cast) {
89 if let Some(range) = extend_tokens_from_range(db, frange.file_id, macro_call, range) { 89 if let Some(range) = extend_tokens_from_range(sema, macro_call, range) {
90 return Some(range); 90 return Some(range);
91 } 91 }
92 } 92 }
@@ -96,7 +96,7 @@ fn try_extend_selection(
96 return Some(node.text_range()); 96 return Some(node.text_range());
97 } 97 }
98 98
99 let node = shallowest_node(&node.into()).unwrap(); 99 let node = shallowest_node(&node.into());
100 100
101 if node.parent().map(|n| list_kinds.contains(&n.kind())) == Some(true) { 101 if node.parent().map(|n| list_kinds.contains(&n.kind())) == Some(true) {
102 if let Some(range) = extend_list_item(&node) { 102 if let Some(range) = extend_list_item(&node) {
@@ -108,8 +108,7 @@ fn try_extend_selection(
108} 108}
109 109
110fn extend_tokens_from_range( 110fn extend_tokens_from_range(
111 db: &RootDatabase, 111 sema: &Semantics<RootDatabase>,
112 file_id: FileId,
113 macro_call: ast::MacroCall, 112 macro_call: ast::MacroCall,
114 original_range: TextRange, 113 original_range: TextRange,
115) -> Option<TextRange> { 114) -> Option<TextRange> {
@@ -119,54 +118,50 @@ fn extend_tokens_from_range(
119 NodeOrToken::Token(it) => (it.clone(), it), 118 NodeOrToken::Token(it) => (it.clone(), it),
120 }; 119 };
121 120
122 let mut first_token = skip_whitespace(first_token, Direction::Next)?; 121 let mut first_token = skip_trivia_token(first_token, Direction::Next)?;
123 let mut last_token = skip_whitespace(last_token, Direction::Prev)?; 122 let mut last_token = skip_trivia_token(last_token, Direction::Prev)?;
124 123
125 while !first_token.text_range().is_subrange(&original_range) { 124 while !first_token.text_range().is_subrange(&original_range) {
126 first_token = skip_whitespace(first_token.next_token()?, Direction::Next)?; 125 first_token = skip_trivia_token(first_token.next_token()?, Direction::Next)?;
127 } 126 }
128 while !last_token.text_range().is_subrange(&original_range) { 127 while !last_token.text_range().is_subrange(&original_range) {
129 last_token = skip_whitespace(last_token.prev_token()?, Direction::Prev)?; 128 last_token = skip_trivia_token(last_token.prev_token()?, Direction::Prev)?;
130 } 129 }
131 130
132 // compute original mapped token range 131 // compute original mapped token range
133 let expanded = { 132 let extended = {
134 let first_node = descend_into_macros(db, file_id, first_token.clone()); 133 let fst_expanded = sema.descend_into_macros(first_token.clone());
135 let first_node = first_node.map(|it| it.text_range()); 134 let lst_expanded = sema.descend_into_macros(last_token.clone());
136 135 let mut lca = algo::least_common_ancestor(&fst_expanded.parent(), &lst_expanded.parent())?;
137 let last_node = descend_into_macros(db, file_id, last_token.clone()); 136 lca = shallowest_node(&lca);
138 if last_node.file_id == file_id.into() || first_node.file_id != last_node.file_id { 137 if lca.first_token() == Some(fst_expanded) && lca.last_token() == Some(lst_expanded) {
139 return None; 138 lca = lca.parent()?;
140 } 139 }
141 first_node.map(|it| union_range(it, last_node.value.text_range())) 140 lca
142 }; 141 };
143 142
144 // Compute parent node range 143 // Compute parent node range
145 let src = db.parse_or_expand(expanded.file_id)?;
146 let parent = shallowest_node(&find_covering_element(&src, expanded.value))?.parent()?;
147
148 let validate = |token: &SyntaxToken| { 144 let validate = |token: &SyntaxToken| {
149 let node = descend_into_macros(db, file_id, token.clone()); 145 let expanded = sema.descend_into_macros(token.clone());
150 node.file_id == expanded.file_id 146 algo::least_common_ancestor(&extended, &expanded.parent()).as_ref() == Some(&extended)
151 && node.value.text_range().is_subrange(&parent.text_range())
152 }; 147 };
153 148
154 // Find the first and last text range under expanded parent 149 // Find the first and last text range under expanded parent
155 let first = successors(Some(first_token), |token| { 150 let first = successors(Some(first_token), |token| {
156 let token = token.prev_token()?; 151 let token = token.prev_token()?;
157 skip_whitespace(token, Direction::Prev) 152 skip_trivia_token(token, Direction::Prev)
158 }) 153 })
159 .take_while(validate) 154 .take_while(validate)
160 .last()?; 155 .last()?;
161 156
162 let last = successors(Some(last_token), |token| { 157 let last = successors(Some(last_token), |token| {
163 let token = token.next_token()?; 158 let token = token.next_token()?;
164 skip_whitespace(token, Direction::Next) 159 skip_trivia_token(token, Direction::Next)
165 }) 160 })
166 .take_while(validate) 161 .take_while(validate)
167 .last()?; 162 .last()?;
168 163
169 let range = union_range(first.text_range(), last.text_range()); 164 let range = first.text_range().extend_to(&last.text_range());
170 if original_range.is_subrange(&range) && original_range != range { 165 if original_range.is_subrange(&range) && original_range != range {
171 Some(range) 166 Some(range)
172 } else { 167 } else {
@@ -174,25 +169,9 @@ fn extend_tokens_from_range(
174 } 169 }
175} 170}
176 171
177fn skip_whitespace(mut token: SyntaxToken, direction: Direction) -> Option<SyntaxToken> {
178 while token.kind() == WHITESPACE {
179 token = match direction {
180 Direction::Next => token.next_token()?,
181 Direction::Prev => token.prev_token()?,
182 }
183 }
184 Some(token)
185}
186
187fn union_range(range: TextRange, r: TextRange) -> TextRange {
188 let start = range.start().min(r.start());
189 let end = range.end().max(r.end());
190 TextRange::from_to(start, end)
191}
192
193/// Find the shallowest node with same range, which allows us to traverse siblings. 172/// Find the shallowest node with same range, which allows us to traverse siblings.
194fn shallowest_node(node: &SyntaxElement) -> Option<SyntaxNode> { 173fn shallowest_node(node: &SyntaxNode) -> SyntaxNode {
195 node.ancestors().take_while(|n| n.text_range() == node.text_range()).last() 174 node.ancestors().take_while(|n| n.text_range() == node.text_range()).last().unwrap()
196} 175}
197 176
198fn extend_single_word_in_comment_or_string( 177fn extend_single_word_in_comment_or_string(
diff --git a/crates/ra_ide/src/goto_definition.rs b/crates/ra_ide/src/goto_definition.rs
index feff1ec3f..6053c1bb6 100644
--- a/crates/ra_ide/src/goto_definition.rs
+++ b/crates/ra_ide/src/goto_definition.rs
@@ -1,7 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{db::AstDatabase, InFile, SourceBinder}; 3use hir::Semantics;
4use ra_ide_db::{symbol_index, RootDatabase}; 4use ra_ide_db::{defs::classify_name, symbol_index, RootDatabase};
5use ra_syntax::{ 5use ra_syntax::{
6 ast::{self}, 6 ast::{self},
7 match_ast, AstNode, 7 match_ast, AstNode,
@@ -11,8 +11,7 @@ use ra_syntax::{
11 11
12use crate::{ 12use crate::{
13 display::{ToNav, TryToNav}, 13 display::{ToNav, TryToNav},
14 expand::descend_into_macros, 14 references::classify_name_ref,
15 references::{classify_name, classify_name_ref},
16 FilePosition, NavigationTarget, RangeInfo, 15 FilePosition, NavigationTarget, RangeInfo,
17}; 16};
18 17
@@ -20,18 +19,18 @@ pub(crate) fn goto_definition(
20 db: &RootDatabase, 19 db: &RootDatabase,
21 position: FilePosition, 20 position: FilePosition,
22) -> Option<RangeInfo<Vec<NavigationTarget>>> { 21) -> Option<RangeInfo<Vec<NavigationTarget>>> {
23 let file = db.parse_or_expand(position.file_id.into())?; 22 let sema = Semantics::new(db);
23 let file = sema.parse(position.file_id).syntax().clone();
24 let original_token = pick_best(file.token_at_offset(position.offset))?; 24 let original_token = pick_best(file.token_at_offset(position.offset))?;
25 let token = descend_into_macros(db, position.file_id, original_token.clone()); 25 let token = sema.descend_into_macros(original_token.clone());
26 26
27 let mut sb = SourceBinder::new(db);
28 let nav_targets = match_ast! { 27 let nav_targets = match_ast! {
29 match (token.value.parent()) { 28 match (token.parent()) {
30 ast::NameRef(name_ref) => { 29 ast::NameRef(name_ref) => {
31 reference_definition(&mut sb, token.with_value(&name_ref)).to_vec() 30 reference_definition(&sema, &name_ref).to_vec()
32 }, 31 },
33 ast::Name(name) => { 32 ast::Name(name) => {
34 name_definition(&mut sb, token.with_value(&name))? 33 name_definition(&sema, &name)?
35 }, 34 },
36 _ => return None, 35 _ => return None,
37 } 36 }
@@ -68,33 +67,33 @@ impl ReferenceResult {
68} 67}
69 68
70pub(crate) fn reference_definition( 69pub(crate) fn reference_definition(
71 sb: &mut SourceBinder<RootDatabase>, 70 sema: &Semantics<RootDatabase>,
72 name_ref: InFile<&ast::NameRef>, 71 name_ref: &ast::NameRef,
73) -> ReferenceResult { 72) -> ReferenceResult {
74 use self::ReferenceResult::*; 73 use self::ReferenceResult::*;
75 74
76 let name_kind = classify_name_ref(sb, name_ref); 75 let name_kind = classify_name_ref(sema, name_ref);
77 if let Some(def) = name_kind { 76 if let Some(def) = name_kind {
78 return match def.try_to_nav(sb.db) { 77 return match def.try_to_nav(sema.db) {
79 Some(nav) => ReferenceResult::Exact(nav), 78 Some(nav) => ReferenceResult::Exact(nav),
80 None => ReferenceResult::Approximate(Vec::new()), 79 None => ReferenceResult::Approximate(Vec::new()),
81 }; 80 };
82 } 81 }
83 82
84 // Fallback index based approach: 83 // Fallback index based approach:
85 let navs = symbol_index::index_resolve(sb.db, name_ref.value) 84 let navs = symbol_index::index_resolve(sema.db, name_ref)
86 .into_iter() 85 .into_iter()
87 .map(|s| s.to_nav(sb.db)) 86 .map(|s| s.to_nav(sema.db))
88 .collect(); 87 .collect();
89 Approximate(navs) 88 Approximate(navs)
90} 89}
91 90
92fn name_definition( 91fn name_definition(
93 sb: &mut SourceBinder<RootDatabase>, 92 sema: &Semantics<RootDatabase>,
94 name: InFile<&ast::Name>, 93 name: &ast::Name,
95) -> Option<Vec<NavigationTarget>> { 94) -> Option<Vec<NavigationTarget>> {
96 let def = classify_name(sb, name)?; 95 let def = classify_name(sema, name)?;
97 let nav = def.try_to_nav(sb.db)?; 96 let nav = def.try_to_nav(sema.db)?;
98 Some(vec![nav]) 97 Some(vec![nav])
99} 98}
100 99
diff --git a/crates/ra_ide/src/goto_type_definition.rs b/crates/ra_ide/src/goto_type_definition.rs
index 69940fc36..869a4708b 100644
--- a/crates/ra_ide/src/goto_type_definition.rs
+++ b/crates/ra_ide/src/goto_type_definition.rs
@@ -1,31 +1,31 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::db::AstDatabase;
4use ra_ide_db::RootDatabase; 3use ra_ide_db::RootDatabase;
5use ra_syntax::{ast, AstNode, SyntaxKind::*, SyntaxToken, TokenAtOffset}; 4use ra_syntax::{ast, match_ast, AstNode, SyntaxKind::*, SyntaxToken, TokenAtOffset};
6 5
7use crate::{ 6use crate::{display::ToNav, FilePosition, NavigationTarget, RangeInfo};
8 display::ToNav, expand::descend_into_macros, FilePosition, NavigationTarget, RangeInfo,
9};
10 7
11pub(crate) fn goto_type_definition( 8pub(crate) fn goto_type_definition(
12 db: &RootDatabase, 9 db: &RootDatabase,
13 position: FilePosition, 10 position: FilePosition,
14) -> Option<RangeInfo<Vec<NavigationTarget>>> { 11) -> Option<RangeInfo<Vec<NavigationTarget>>> {
15 let file = db.parse_or_expand(position.file_id.into())?; 12 let sema = hir::Semantics::new(db);
16 let token = pick_best(file.token_at_offset(position.offset))?; 13
17 let token = descend_into_macros(db, position.file_id, token); 14 let file: ast::SourceFile = sema.parse(position.file_id);
18 15 let token: SyntaxToken = pick_best(file.syntax().token_at_offset(position.offset))?;
19 let node = token 16 let token: SyntaxToken = sema.descend_into_macros(token);
20 .value 17
21 .ancestors() 18 let (ty, node) = sema.ancestors_with_macros(token.parent()).find_map(|node| {
22 .find(|n| ast::Expr::cast(n.clone()).is_some() || ast::Pat::cast(n.clone()).is_some())?; 19 let ty = match_ast! {
23 20 match node {
24 let analyzer = hir::SourceAnalyzer::new(db, token.with_value(&node), None); 21 ast::Expr(expr) => { sema.type_of_expr(&expr)? },
22 ast::Pat(pat) => { sema.type_of_pat(&pat)? },
23 _ => { return None },
24 }
25 };
25 26
26 let ty: hir::Type = ast::Expr::cast(node.clone()) 27 Some((ty, node))
27 .and_then(|e| analyzer.type_of(db, &e)) 28 })?;
28 .or_else(|| ast::Pat::cast(node.clone()).and_then(|p| analyzer.type_of_pat(db, &p)))?;
29 29
30 let adt_def = ty.autoderef(db).find_map(|ty| ty.as_adt())?; 30 let adt_def = ty.autoderef(db).find_map(|ty| ty.as_adt())?;
31 31
diff --git a/crates/ra_ide/src/hover.rs b/crates/ra_ide/src/hover.rs
index 1c6ca36df..177038e20 100644
--- a/crates/ra_ide/src/hover.rs
+++ b/crates/ra_ide/src/hover.rs
@@ -1,8 +1,10 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{db::AstDatabase, Adt, HasSource, HirDisplay, SourceBinder}; 3use hir::{Adt, HasSource, HirDisplay, Semantics};
4use ra_db::SourceDatabase; 4use ra_ide_db::{
5use ra_ide_db::{defs::NameDefinition, RootDatabase}; 5 defs::{classify_name, NameDefinition},
6 RootDatabase,
7};
6use ra_syntax::{ 8use ra_syntax::{
7 algo::find_covering_element, 9 algo::find_covering_element,
8 ast::{self, DocCommentsOwner}, 10 ast::{self, DocCommentsOwner},
@@ -13,8 +15,7 @@ use ra_syntax::{
13 15
14use crate::{ 16use crate::{
15 display::{macro_label, rust_code_markup, rust_code_markup_with_doc, ShortLabel}, 17 display::{macro_label, rust_code_markup, rust_code_markup_with_doc, ShortLabel},
16 expand::{descend_into_macros, original_range}, 18 references::classify_name_ref,
17 references::{classify_name, classify_name_ref},
18 FilePosition, FileRange, RangeInfo, 19 FilePosition, FileRange, RangeInfo,
19}; 20};
20 21
@@ -143,25 +144,25 @@ fn hover_text_from_name_kind(db: &RootDatabase, def: NameDefinition) -> Option<S
143} 144}
144 145
145pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeInfo<HoverResult>> { 146pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeInfo<HoverResult>> {
146 let file = db.parse_or_expand(position.file_id.into())?; 147 let sema = Semantics::new(db);
148 let file = sema.parse(position.file_id).syntax().clone();
147 let token = pick_best(file.token_at_offset(position.offset))?; 149 let token = pick_best(file.token_at_offset(position.offset))?;
148 let token = descend_into_macros(db, position.file_id, token); 150 let token = sema.descend_into_macros(token);
149 151
150 let mut res = HoverResult::new(); 152 let mut res = HoverResult::new();
151 153
152 let mut sb = SourceBinder::new(db);
153 if let Some((node, name_kind)) = match_ast! { 154 if let Some((node, name_kind)) = match_ast! {
154 match (token.value.parent()) { 155 match (token.parent()) {
155 ast::NameRef(name_ref) => { 156 ast::NameRef(name_ref) => {
156 classify_name_ref(&mut sb, token.with_value(&name_ref)).map(|d| (name_ref.syntax().clone(), d)) 157 classify_name_ref(&sema, &name_ref).map(|d| (name_ref.syntax().clone(), d))
157 }, 158 },
158 ast::Name(name) => { 159 ast::Name(name) => {
159 classify_name(&mut sb, token.with_value(&name)).map(|d| (name.syntax().clone(), d)) 160 classify_name(&sema, &name).map(|d| (name.syntax().clone(), d))
160 }, 161 },
161 _ => None, 162 _ => None,
162 } 163 }
163 } { 164 } {
164 let range = original_range(db, token.with_value(&node)).range; 165 let range = sema.original_range(&node).range;
165 res.extend(hover_text_from_name_kind(db, name_kind)); 166 res.extend(hover_text_from_name_kind(db, name_kind));
166 167
167 if !res.is_empty() { 168 if !res.is_empty() {
@@ -170,11 +171,14 @@ pub(crate) fn hover(db: &RootDatabase, position: FilePosition) -> Option<RangeIn
170 } 171 }
171 172
172 let node = token 173 let node = token
173 .value
174 .ancestors() 174 .ancestors()
175 .find(|n| ast::Expr::cast(n.clone()).is_some() || ast::Pat::cast(n.clone()).is_some())?; 175 .find(|n| ast::Expr::cast(n.clone()).is_some() || ast::Pat::cast(n.clone()).is_some())?;
176 176
177 let frange = original_range(db, token.with_value(&node)); 177 // FIXME: Currently `hover::typeof` do not work inside
178 // macro expansion such that if the hover range is pointing to
179 // a string literal, the following type_of will return None.
180 // See also `test_hover_through_literal_string_in_macro`
181 let frange = sema.original_range(&node);
178 res.extend(type_of(db, frange).map(rust_code_markup)); 182 res.extend(type_of(db, frange).map(rust_code_markup));
179 if res.is_empty() { 183 if res.is_empty() {
180 return None; 184 return None;
@@ -197,19 +201,17 @@ fn pick_best(tokens: TokenAtOffset<SyntaxToken>) -> Option<SyntaxToken> {
197} 201}
198 202
199pub(crate) fn type_of(db: &RootDatabase, frange: FileRange) -> Option<String> { 203pub(crate) fn type_of(db: &RootDatabase, frange: FileRange) -> Option<String> {
200 let parse = db.parse(frange.file_id); 204 let sema = Semantics::new(db);
201 let leaf_node = find_covering_element(parse.tree().syntax(), frange.range); 205 let source_file = sema.parse(frange.file_id);
206 let leaf_node = find_covering_element(source_file.syntax(), frange.range);
202 // if we picked identifier, expand to pattern/expression 207 // if we picked identifier, expand to pattern/expression
203 let node = leaf_node 208 let node = leaf_node
204 .ancestors() 209 .ancestors()
205 .take_while(|it| it.text_range() == leaf_node.text_range()) 210 .take_while(|it| it.text_range() == leaf_node.text_range())
206 .find(|it| ast::Expr::cast(it.clone()).is_some() || ast::Pat::cast(it.clone()).is_some())?; 211 .find(|it| ast::Expr::cast(it.clone()).is_some() || ast::Pat::cast(it.clone()).is_some())?;
207 let analyzer = 212 let ty = if let Some(ty) = ast::Expr::cast(node.clone()).and_then(|e| sema.type_of_expr(&e)) {
208 hir::SourceAnalyzer::new(db, hir::InFile::new(frange.file_id.into(), &node), None);
209 let ty = if let Some(ty) = ast::Expr::cast(node.clone()).and_then(|e| analyzer.type_of(db, &e))
210 {
211 ty 213 ty
212 } else if let Some(ty) = ast::Pat::cast(node).and_then(|p| analyzer.type_of_pat(db, &p)) { 214 } else if let Some(ty) = ast::Pat::cast(node).and_then(|p| sema.type_of_pat(&p)) {
213 ty 215 ty
214 } else { 216 } else {
215 return None; 217 return None;
@@ -219,11 +221,12 @@ pub(crate) fn type_of(db: &RootDatabase, frange: FileRange) -> Option<String> {
219 221
220#[cfg(test)] 222#[cfg(test)]
221mod tests { 223mod tests {
224 use ra_db::FileLoader;
225 use ra_syntax::TextRange;
226
222 use crate::mock_analysis::{ 227 use crate::mock_analysis::{
223 analysis_and_position, single_file_with_position, single_file_with_range, 228 analysis_and_position, single_file_with_position, single_file_with_range,
224 }; 229 };
225 use ra_db::FileLoader;
226 use ra_syntax::TextRange;
227 230
228 fn trim_markup(s: &str) -> &str { 231 fn trim_markup(s: &str) -> &str {
229 s.trim_start_matches("```rust\n").trim_end_matches("\n```") 232 s.trim_start_matches("```rust\n").trim_end_matches("\n```")
@@ -251,6 +254,11 @@ mod tests {
251 content[hover.range].to_string() 254 content[hover.range].to_string()
252 } 255 }
253 256
257 fn check_hover_no_result(fixture: &str) {
258 let (analysis, position) = analysis_and_position(fixture);
259 assert!(analysis.hover(position).unwrap().is_none());
260 }
261
254 #[test] 262 #[test]
255 fn hover_shows_type_of_an_expression() { 263 fn hover_shows_type_of_an_expression() {
256 let (analysis, position) = single_file_with_position( 264 let (analysis, position) = single_file_with_position(
@@ -755,6 +763,45 @@ fn func(foo: i32) { if true { <|>foo; }; }
755 } 763 }
756 764
757 #[test] 765 #[test]
766 fn test_hover_through_expr_in_macro_recursive() {
767 let hover_on = check_hover_result(
768 "
769 //- /lib.rs
770 macro_rules! id_deep {
771 ($($tt:tt)*) => { $($tt)* }
772 }
773 macro_rules! id {
774 ($($tt:tt)*) => { id_deep!($($tt)*) }
775 }
776 fn foo(bar:u32) {
777 let a = id!(ba<|>r);
778 }
779 ",
780 &["u32"],
781 );
782
783 assert_eq!(hover_on, "bar")
784 }
785
786 #[test]
787 fn test_hover_through_literal_string_in_macro() {
788 // FIXME: Currently `hover::type_of` do not work inside
789 // macro expansion
790 check_hover_no_result(
791 r#"
792 //- /lib.rs
793 macro_rules! arr {
794 ($($tt:tt)*) => { [$($tt)*)] }
795 }
796 fn foo() {
797 let mastered_for_itunes = "";
798 let _ = arr!("Tr<|>acks", &mastered_for_itunes);
799 }
800 "#,
801 );
802 }
803
804 #[test]
758 fn test_hover_non_ascii_space_doc() { 805 fn test_hover_non_ascii_space_doc() {
759 check_hover_result( 806 check_hover_result(
760 " 807 "
diff --git a/crates/ra_ide/src/impls.rs b/crates/ra_ide/src/impls.rs
index 64a2dadc8..bf82b2a16 100644
--- a/crates/ra_ide/src/impls.rs
+++ b/crates/ra_ide/src/impls.rs
@@ -1,7 +1,6 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{Crate, ImplBlock, SourceBinder}; 3use hir::{Crate, ImplBlock, Semantics};
4use ra_db::SourceDatabase;
5use ra_ide_db::RootDatabase; 4use ra_ide_db::RootDatabase;
6use ra_syntax::{algo::find_node_at_offset, ast, AstNode}; 5use ra_syntax::{algo::find_node_at_offset, ast, AstNode};
7 6
@@ -11,21 +10,21 @@ pub(crate) fn goto_implementation(
11 db: &RootDatabase, 10 db: &RootDatabase,
12 position: FilePosition, 11 position: FilePosition,
13) -> Option<RangeInfo<Vec<NavigationTarget>>> { 12) -> Option<RangeInfo<Vec<NavigationTarget>>> {
14 let parse = db.parse(position.file_id); 13 let sema = Semantics::new(db);
15 let syntax = parse.tree().syntax().clone(); 14 let source_file = sema.parse(position.file_id);
16 let mut sb = SourceBinder::new(db); 15 let syntax = source_file.syntax().clone();
17 16
18 let krate = sb.to_module_def(position.file_id)?.krate(); 17 let krate = sema.to_module_def(position.file_id)?.krate();
19 18
20 if let Some(nominal_def) = find_node_at_offset::<ast::NominalDef>(&syntax, position.offset) { 19 if let Some(nominal_def) = find_node_at_offset::<ast::NominalDef>(&syntax, position.offset) {
21 return Some(RangeInfo::new( 20 return Some(RangeInfo::new(
22 nominal_def.syntax().text_range(), 21 nominal_def.syntax().text_range(),
23 impls_for_def(&mut sb, position, &nominal_def, krate)?, 22 impls_for_def(&sema, &nominal_def, krate)?,
24 )); 23 ));
25 } else if let Some(trait_def) = find_node_at_offset::<ast::TraitDef>(&syntax, position.offset) { 24 } else if let Some(trait_def) = find_node_at_offset::<ast::TraitDef>(&syntax, position.offset) {
26 return Some(RangeInfo::new( 25 return Some(RangeInfo::new(
27 trait_def.syntax().text_range(), 26 trait_def.syntax().text_range(),
28 impls_for_trait(&mut sb, position, &trait_def, krate)?, 27 impls_for_trait(&sema, &trait_def, krate)?,
29 )); 28 ));
30 } 29 }
31 30
@@ -33,49 +32,37 @@ pub(crate) fn goto_implementation(
33} 32}
34 33
35fn impls_for_def( 34fn impls_for_def(
36 sb: &mut SourceBinder<RootDatabase>, 35 sema: &Semantics<RootDatabase>,
37 position: FilePosition,
38 node: &ast::NominalDef, 36 node: &ast::NominalDef,
39 krate: Crate, 37 krate: Crate,
40) -> Option<Vec<NavigationTarget>> { 38) -> Option<Vec<NavigationTarget>> {
41 let ty = match node { 39 let ty = match node {
42 ast::NominalDef::StructDef(def) => { 40 ast::NominalDef::StructDef(def) => sema.to_def(def)?.ty(sema.db),
43 let src = hir::InFile { file_id: position.file_id.into(), value: def.clone() }; 41 ast::NominalDef::EnumDef(def) => sema.to_def(def)?.ty(sema.db),
44 sb.to_def(src)?.ty(sb.db) 42 ast::NominalDef::UnionDef(def) => sema.to_def(def)?.ty(sema.db),
45 }
46 ast::NominalDef::EnumDef(def) => {
47 let src = hir::InFile { file_id: position.file_id.into(), value: def.clone() };
48 sb.to_def(src)?.ty(sb.db)
49 }
50 ast::NominalDef::UnionDef(def) => {
51 let src = hir::InFile { file_id: position.file_id.into(), value: def.clone() };
52 sb.to_def(src)?.ty(sb.db)
53 }
54 }; 43 };
55 44
56 let impls = ImplBlock::all_in_crate(sb.db, krate); 45 let impls = ImplBlock::all_in_crate(sema.db, krate);
57 46
58 Some( 47 Some(
59 impls 48 impls
60 .into_iter() 49 .into_iter()
61 .filter(|impl_block| ty.is_equal_for_find_impls(&impl_block.target_ty(sb.db))) 50 .filter(|impl_block| ty.is_equal_for_find_impls(&impl_block.target_ty(sema.db)))
62 .map(|imp| imp.to_nav(sb.db)) 51 .map(|imp| imp.to_nav(sema.db))
63 .collect(), 52 .collect(),
64 ) 53 )
65} 54}
66 55
67fn impls_for_trait( 56fn impls_for_trait(
68 sb: &mut SourceBinder<RootDatabase>, 57 sema: &Semantics<RootDatabase>,
69 position: FilePosition,
70 node: &ast::TraitDef, 58 node: &ast::TraitDef,
71 krate: Crate, 59 krate: Crate,
72) -> Option<Vec<NavigationTarget>> { 60) -> Option<Vec<NavigationTarget>> {
73 let src = hir::InFile { file_id: position.file_id.into(), value: node.clone() }; 61 let tr = sema.to_def(node)?;
74 let tr = sb.to_def(src)?;
75 62
76 let impls = ImplBlock::for_trait(sb.db, krate, tr); 63 let impls = ImplBlock::for_trait(sema.db, krate, tr);
77 64
78 Some(impls.into_iter().map(|imp| imp.to_nav(sb.db)).collect()) 65 Some(impls.into_iter().map(|imp| imp.to_nav(sema.db)).collect())
79} 66}
80 67
81#[cfg(test)] 68#[cfg(test)]
diff --git a/crates/ra_ide/src/inlay_hints.rs b/crates/ra_ide/src/inlay_hints.rs
index b42aa1523..35e3f782d 100644
--- a/crates/ra_ide/src/inlay_hints.rs
+++ b/crates/ra_ide/src/inlay_hints.rs
@@ -1,12 +1,11 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{Adt, HirDisplay, SourceAnalyzer, SourceBinder, Type}; 3use hir::{Adt, HirDisplay, Semantics, Type};
4use once_cell::unsync::Lazy;
5use ra_ide_db::RootDatabase; 4use ra_ide_db::RootDatabase;
6use ra_prof::profile; 5use ra_prof::profile;
7use ra_syntax::{ 6use ra_syntax::{
8 ast::{self, ArgListOwner, AstNode, TypeAscriptionOwner}, 7 ast::{self, ArgListOwner, AstNode, TypeAscriptionOwner},
9 match_ast, SmolStr, SourceFile, SyntaxNode, TextRange, 8 match_ast, SmolStr, SyntaxNode, TextRange,
10}; 9};
11 10
12use crate::{FileId, FunctionSignature}; 11use crate::{FileId, FunctionSignature};
@@ -27,38 +26,36 @@ pub struct InlayHint {
27pub(crate) fn inlay_hints( 26pub(crate) fn inlay_hints(
28 db: &RootDatabase, 27 db: &RootDatabase,
29 file_id: FileId, 28 file_id: FileId,
30 file: &SourceFile,
31 max_inlay_hint_length: Option<usize>, 29 max_inlay_hint_length: Option<usize>,
32) -> Vec<InlayHint> { 30) -> Vec<InlayHint> {
33 let mut sb = SourceBinder::new(db); 31 let sema = Semantics::new(db);
32 let file = sema.parse(file_id);
34 let mut res = Vec::new(); 33 let mut res = Vec::new();
35 for node in file.syntax().descendants() { 34 for node in file.syntax().descendants() {
36 get_inlay_hints(&mut res, &mut sb, file_id, &node, max_inlay_hint_length); 35 get_inlay_hints(&mut res, &sema, &node, max_inlay_hint_length);
37 } 36 }
38 res 37 res
39} 38}
40 39
41fn get_inlay_hints( 40fn get_inlay_hints(
42 acc: &mut Vec<InlayHint>, 41 acc: &mut Vec<InlayHint>,
43 sb: &mut SourceBinder<RootDatabase>, 42 sema: &Semantics<RootDatabase>,
44 file_id: FileId,
45 node: &SyntaxNode, 43 node: &SyntaxNode,
46 max_inlay_hint_length: Option<usize>, 44 max_inlay_hint_length: Option<usize>,
47) -> Option<()> { 45) -> Option<()> {
48 let _p = profile("get_inlay_hints"); 46 let _p = profile("get_inlay_hints");
49 let db = sb.db; 47 let db = sema.db;
50 let analyzer = Lazy::new(move || sb.analyze(hir::InFile::new(file_id.into(), node), None));
51 match_ast! { 48 match_ast! {
52 match node { 49 match node {
53 ast::CallExpr(it) => { 50 ast::CallExpr(it) => {
54 get_param_name_hints(acc, db, &analyzer, ast::Expr::from(it)); 51 get_param_name_hints(acc, sema, ast::Expr::from(it));
55 }, 52 },
56 ast::MethodCallExpr(it) => { 53 ast::MethodCallExpr(it) => {
57 get_param_name_hints(acc, db, &analyzer, ast::Expr::from(it)); 54 get_param_name_hints(acc, sema, ast::Expr::from(it));
58 }, 55 },
59 ast::BindPat(it) => { 56 ast::BindPat(it) => {
60 let pat = ast::Pat::from(it.clone()); 57 let pat = ast::Pat::from(it.clone());
61 let ty = analyzer.type_of_pat(db, &pat)?; 58 let ty = sema.type_of_pat(&pat)?;
62 59
63 if should_not_display_type_hint(db, &it, &ty) { 60 if should_not_display_type_hint(db, &it, &ty) {
64 return None; 61 return None;
@@ -125,8 +122,7 @@ fn should_not_display_type_hint(db: &RootDatabase, bind_pat: &ast::BindPat, pat_
125 122
126fn get_param_name_hints( 123fn get_param_name_hints(
127 acc: &mut Vec<InlayHint>, 124 acc: &mut Vec<InlayHint>,
128 db: &RootDatabase, 125 sema: &Semantics<RootDatabase>,
129 analyzer: &SourceAnalyzer,
130 expr: ast::Expr, 126 expr: ast::Expr,
131) -> Option<()> { 127) -> Option<()> {
132 let args = match &expr { 128 let args = match &expr {
@@ -138,7 +134,7 @@ fn get_param_name_hints(
138 // we need args len to determine whether to skip or not the &self parameter 134 // we need args len to determine whether to skip or not the &self parameter
139 .collect::<Vec<_>>(); 135 .collect::<Vec<_>>();
140 136
141 let fn_signature = get_fn_signature(db, analyzer, &expr)?; 137 let fn_signature = get_fn_signature(sema, &expr)?;
142 let n_params_to_skip = 138 let n_params_to_skip =
143 if fn_signature.has_self_param && fn_signature.parameter_names.len() > args.len() { 139 if fn_signature.has_self_param && fn_signature.parameter_names.len() > args.len() {
144 1 140 1
@@ -184,28 +180,26 @@ fn should_show_param_hint(
184 true 180 true
185} 181}
186 182
187fn get_fn_signature( 183fn get_fn_signature(sema: &Semantics<RootDatabase>, expr: &ast::Expr) -> Option<FunctionSignature> {
188 db: &RootDatabase,
189 analyzer: &SourceAnalyzer,
190 expr: &ast::Expr,
191) -> Option<FunctionSignature> {
192 match expr { 184 match expr {
193 ast::Expr::CallExpr(expr) => { 185 ast::Expr::CallExpr(expr) => {
194 // FIXME: Type::as_callable is broken for closures 186 // FIXME: Type::as_callable is broken for closures
195 let callable_def = analyzer.type_of(db, &expr.expr()?)?.as_callable()?; 187 let callable_def = sema.type_of_expr(&expr.expr()?)?.as_callable()?;
196 match callable_def { 188 match callable_def {
197 hir::CallableDef::FunctionId(it) => { 189 hir::CallableDef::FunctionId(it) => {
198 Some(FunctionSignature::from_hir(db, it.into())) 190 Some(FunctionSignature::from_hir(sema.db, it.into()))
191 }
192 hir::CallableDef::StructId(it) => {
193 FunctionSignature::from_struct(sema.db, it.into())
199 } 194 }
200 hir::CallableDef::StructId(it) => FunctionSignature::from_struct(db, it.into()),
201 hir::CallableDef::EnumVariantId(it) => { 195 hir::CallableDef::EnumVariantId(it) => {
202 FunctionSignature::from_enum_variant(db, it.into()) 196 FunctionSignature::from_enum_variant(sema.db, it.into())
203 } 197 }
204 } 198 }
205 } 199 }
206 ast::Expr::MethodCallExpr(expr) => { 200 ast::Expr::MethodCallExpr(expr) => {
207 let fn_def = analyzer.resolve_method_call(&expr)?; 201 let fn_def = sema.resolve_method_call(&expr)?;
208 Some(FunctionSignature::from_hir(db, fn_def)) 202 Some(FunctionSignature::from_hir(sema.db, fn_def))
209 } 203 }
210 _ => None, 204 _ => None,
211 } 205 }
diff --git a/crates/ra_ide/src/lib.rs b/crates/ra_ide/src/lib.rs
index 82e10bc7e..d509de14e 100644
--- a/crates/ra_ide/src/lib.rs
+++ b/crates/ra_ide/src/lib.rs
@@ -35,7 +35,6 @@ mod typing;
35mod matching_brace; 35mod matching_brace;
36mod display; 36mod display;
37mod inlay_hints; 37mod inlay_hints;
38mod expand;
39mod expand_macro; 38mod expand_macro;
40mod ssr; 39mod ssr;
41 40
@@ -75,7 +74,9 @@ pub use crate::{
75 runnables::{Runnable, RunnableKind, TestId}, 74 runnables::{Runnable, RunnableKind, TestId},
76 source_change::{FileSystemEdit, SourceChange, SourceFileEdit}, 75 source_change::{FileSystemEdit, SourceChange, SourceFileEdit},
77 ssr::SsrError, 76 ssr::SsrError,
78 syntax_highlighting::{tags, HighlightedRange}, 77 syntax_highlighting::{
78 Highlight, HighlightModifier, HighlightModifiers, HighlightTag, HighlightedRange,
79 },
79}; 80};
80 81
81pub use hir::Documentation; 82pub use hir::Documentation;
@@ -319,9 +320,7 @@ impl Analysis {
319 file_id: FileId, 320 file_id: FileId,
320 max_inlay_hint_length: Option<usize>, 321 max_inlay_hint_length: Option<usize>,
321 ) -> Cancelable<Vec<InlayHint>> { 322 ) -> Cancelable<Vec<InlayHint>> {
322 self.with_db(|db| { 323 self.with_db(|db| inlay_hints::inlay_hints(db, file_id, max_inlay_hint_length))
323 inlay_hints::inlay_hints(db, file_id, &db.parse(file_id).tree(), max_inlay_hint_length)
324 })
325 } 324 }
326 325
327 /// Returns the set of folding ranges. 326 /// Returns the set of folding ranges.
@@ -425,9 +424,14 @@ impl Analysis {
425 self.with_db(|db| runnables::runnables(db, file_id)) 424 self.with_db(|db| runnables::runnables(db, file_id))
426 } 425 }
427 426
428 /// Computes syntax highlighting for the given file. 427 /// Computes syntax highlighting for the given file
429 pub fn highlight(&self, file_id: FileId) -> Cancelable<Vec<HighlightedRange>> { 428 pub fn highlight(&self, file_id: FileId) -> Cancelable<Vec<HighlightedRange>> {
430 self.with_db(|db| syntax_highlighting::highlight(db, file_id)) 429 self.with_db(|db| syntax_highlighting::highlight(db, file_id, None))
430 }
431
432 /// Computes syntax highlighting for the given file range.
433 pub fn highlight_range(&self, frange: FileRange) -> Cancelable<Vec<HighlightedRange>> {
434 self.with_db(|db| syntax_highlighting::highlight(db, frange.file_id, Some(frange.range)))
431 } 435 }
432 436
433 /// Computes syntax highlighting for the given file. 437 /// Computes syntax highlighting for the given file.
diff --git a/crates/ra_ide/src/marks.rs b/crates/ra_ide/src/marks.rs
index bcb67e373..7b8b727b4 100644
--- a/crates/ra_ide/src/marks.rs
+++ b/crates/ra_ide/src/marks.rs
@@ -11,4 +11,5 @@ test_utils::marks!(
11 call_info_bad_offset 11 call_info_bad_offset
12 dont_complete_current_use 12 dont_complete_current_use
13 test_resolve_parent_module_on_module_decl 13 test_resolve_parent_module_on_module_decl
14 search_filters_by_range
14); 15);
diff --git a/crates/ra_ide/src/parent_module.rs b/crates/ra_ide/src/parent_module.rs
index af14d6ab3..2c4bdb039 100644
--- a/crates/ra_ide/src/parent_module.rs
+++ b/crates/ra_ide/src/parent_module.rs
@@ -1,6 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use ra_db::{CrateId, FileId, FilePosition, SourceDatabase}; 3use hir::Semantics;
4use ra_db::{CrateId, FileId, FilePosition};
4use ra_ide_db::RootDatabase; 5use ra_ide_db::RootDatabase;
5use ra_syntax::{ 6use ra_syntax::{
6 algo::find_node_at_offset, 7 algo::find_node_at_offset,
@@ -13,10 +14,10 @@ use crate::NavigationTarget;
13/// This returns `Vec` because a module may be included from several places. We 14/// This returns `Vec` because a module may be included from several places. We
14/// don't handle this case yet though, so the Vec has length at most one. 15/// don't handle this case yet though, so the Vec has length at most one.
15pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<NavigationTarget> { 16pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<NavigationTarget> {
16 let mut sb = hir::SourceBinder::new(db); 17 let sema = Semantics::new(db);
17 let parse = db.parse(position.file_id); 18 let source_file = sema.parse(position.file_id);
18 19
19 let mut module = find_node_at_offset::<ast::Module>(parse.tree().syntax(), position.offset); 20 let mut module = find_node_at_offset::<ast::Module>(source_file.syntax(), position.offset);
20 21
21 // If cursor is literally on `mod foo`, go to the grandpa. 22 // If cursor is literally on `mod foo`, go to the grandpa.
22 if let Some(m) = &module { 23 if let Some(m) = &module {
@@ -30,8 +31,8 @@ pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<Na
30 } 31 }
31 32
32 let module = match module { 33 let module = match module {
33 Some(module) => sb.to_def(hir::InFile::new(position.file_id.into(), module)), 34 Some(module) => sema.to_def(&module),
34 None => sb.to_module_def(position.file_id), 35 None => sema.to_module_def(position.file_id),
35 }; 36 };
36 let module = match module { 37 let module = match module {
37 None => return Vec::new(), 38 None => return Vec::new(),
@@ -43,8 +44,8 @@ pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<Na
43 44
44/// Returns `Vec` for the same reason as `parent_module` 45/// Returns `Vec` for the same reason as `parent_module`
45pub(crate) fn crate_for(db: &RootDatabase, file_id: FileId) -> Vec<CrateId> { 46pub(crate) fn crate_for(db: &RootDatabase, file_id: FileId) -> Vec<CrateId> {
46 let mut sb = hir::SourceBinder::new(db); 47 let sema = Semantics::new(db);
47 let module = match sb.to_module_def(file_id) { 48 let module = match sema.to_module_def(file_id) {
48 Some(it) => it, 49 Some(it) => it,
49 None => return Vec::new(), 50 None => return Vec::new(),
50 }; 51 };
diff --git a/crates/ra_ide/src/references.rs b/crates/ra_ide/src/references.rs
index aadc2dbcb..baa8a4d29 100644
--- a/crates/ra_ide/src/references.rs
+++ b/crates/ra_ide/src/references.rs
@@ -13,25 +13,22 @@ mod classify;
13mod rename; 13mod rename;
14mod search_scope; 14mod search_scope;
15 15
16use crate::expand::descend_into_macros_with_analyzer; 16use hir::Semantics;
17use hir::{InFile, SourceBinder};
18use once_cell::unsync::Lazy; 17use once_cell::unsync::Lazy;
19use ra_db::{SourceDatabase, SourceDatabaseExt}; 18use ra_db::SourceDatabaseExt;
20use ra_ide_db::RootDatabase; 19use ra_ide_db::RootDatabase;
21use ra_prof::profile; 20use ra_prof::profile;
22use ra_syntax::{ 21use ra_syntax::{
23 algo::find_node_at_offset, 22 algo::find_node_at_offset,
24 ast::{self, NameOwner}, 23 ast::{self, NameOwner},
25 match_ast, AstNode, SourceFile, SyntaxKind, SyntaxNode, TextRange, TextUnit, TokenAtOffset, 24 match_ast, AstNode, SyntaxKind, SyntaxNode, TextRange, TextUnit, TokenAtOffset,
26}; 25};
26use test_utils::tested_by;
27 27
28use crate::{display::TryToNav, FilePosition, FileRange, NavigationTarget, RangeInfo}; 28use crate::{display::TryToNav, FilePosition, FileRange, NavigationTarget, RangeInfo};
29 29
30pub(crate) use self::{ 30pub(crate) use self::{classify::classify_name_ref, rename::rename};
31 classify::{classify_name, classify_name_ref}, 31pub(crate) use ra_ide_db::defs::{classify_name, NameDefinition};
32 rename::rename,
33};
34pub(crate) use ra_ide_db::defs::NameDefinition;
35 32
36pub use self::search_scope::SearchScope; 33pub use self::search_scope::SearchScope;
37 34
@@ -114,8 +111,8 @@ pub(crate) fn find_all_refs(
114 position: FilePosition, 111 position: FilePosition,
115 search_scope: Option<SearchScope>, 112 search_scope: Option<SearchScope>,
116) -> Option<RangeInfo<ReferenceSearchResult>> { 113) -> Option<RangeInfo<ReferenceSearchResult>> {
117 let parse = db.parse(position.file_id); 114 let sema = Semantics::new(db);
118 let syntax = parse.tree().syntax().clone(); 115 let syntax = sema.parse(position.file_id).syntax().clone();
119 116
120 let (opt_name, search_kind) = 117 let (opt_name, search_kind) =
121 if let Some(name) = get_struct_def_name_for_struc_litetal_search(&syntax, position) { 118 if let Some(name) = get_struct_def_name_for_struc_litetal_search(&syntax, position) {
@@ -124,7 +121,7 @@ pub(crate) fn find_all_refs(
124 (find_node_at_offset::<ast::Name>(&syntax, position.offset), ReferenceKind::Other) 121 (find_node_at_offset::<ast::Name>(&syntax, position.offset), ReferenceKind::Other)
125 }; 122 };
126 123
127 let RangeInfo { range, info: (name, def) } = find_name(db, &syntax, position, opt_name)?; 124 let RangeInfo { range, info: (name, def) } = find_name(&sema, &syntax, position, opt_name)?;
128 let declaration = def.try_to_nav(db)?; 125 let declaration = def.try_to_nav(db)?;
129 126
130 let search_scope = { 127 let search_scope = {
@@ -152,19 +149,18 @@ pub(crate) fn find_all_refs(
152} 149}
153 150
154fn find_name( 151fn find_name(
155 db: &RootDatabase, 152 sema: &Semantics<RootDatabase>,
156 syntax: &SyntaxNode, 153 syntax: &SyntaxNode,
157 position: FilePosition, 154 position: FilePosition,
158 opt_name: Option<ast::Name>, 155 opt_name: Option<ast::Name>,
159) -> Option<RangeInfo<(String, NameDefinition)>> { 156) -> Option<RangeInfo<(String, NameDefinition)>> {
160 let mut sb = SourceBinder::new(db);
161 if let Some(name) = opt_name { 157 if let Some(name) = opt_name {
162 let def = classify_name(&mut sb, InFile::new(position.file_id.into(), &name))?; 158 let def = classify_name(sema, &name)?;
163 let range = name.syntax().text_range(); 159 let range = name.syntax().text_range();
164 return Some(RangeInfo::new(range, (name.text().to_string(), def))); 160 return Some(RangeInfo::new(range, (name.text().to_string(), def)));
165 } 161 }
166 let name_ref = find_node_at_offset::<ast::NameRef>(&syntax, position.offset)?; 162 let name_ref = find_node_at_offset::<ast::NameRef>(&syntax, position.offset)?;
167 let def = classify_name_ref(&mut sb, InFile::new(position.file_id.into(), &name_ref))?; 163 let def = classify_name_ref(sema, &name_ref)?;
168 let range = name_ref.syntax().text_range(); 164 let range = name_ref.syntax().text_range();
169 Some(RangeInfo::new(range, (name_ref.text().to_string(), def))) 165 Some(RangeInfo::new(range, (name_ref.text().to_string(), def)))
170} 166}
@@ -182,64 +178,53 @@ fn process_definition(
182 178
183 for (file_id, search_range) in scope { 179 for (file_id, search_range) in scope {
184 let text = db.file_text(file_id); 180 let text = db.file_text(file_id);
181 let search_range =
182 search_range.unwrap_or(TextRange::offset_len(0.into(), TextUnit::of_str(&text)));
185 183
186 let parse = Lazy::new(|| SourceFile::parse(&text)); 184 let sema = Semantics::new(db);
187 let mut sb = Lazy::new(|| SourceBinder::new(db)); 185 let tree = Lazy::new(|| sema.parse(file_id).syntax().clone());
188 let mut analyzer = None;
189 186
190 for (idx, _) in text.match_indices(pat) { 187 for (idx, _) in text.match_indices(pat) {
191 let offset = TextUnit::from_usize(idx); 188 let offset = TextUnit::from_usize(idx);
189 if !search_range.contains_inclusive(offset) {
190 tested_by!(search_filters_by_range);
191 continue;
192 }
192 193
193 let (name_ref, range) = if let Some(name_ref) = 194 let name_ref =
194 find_node_at_offset::<ast::NameRef>(parse.tree().syntax(), offset) 195 if let Some(name_ref) = find_node_at_offset::<ast::NameRef>(&tree, offset) {
195 { 196 name_ref
196 let range = name_ref.syntax().text_range();
197 (InFile::new(file_id.into(), name_ref), range)
198 } else {
199 // Handle macro token cases
200 let t = match parse.tree().syntax().token_at_offset(offset) {
201 TokenAtOffset::None => continue,
202 TokenAtOffset::Single(t) => t,
203 TokenAtOffset::Between(_, t) => t,
204 };
205 let range = t.text_range();
206 let analyzer = analyzer.get_or_insert_with(|| {
207 sb.analyze(InFile::new(file_id.into(), parse.tree().syntax()), None)
208 });
209 let expanded = descend_into_macros_with_analyzer(
210 db,
211 &analyzer,
212 InFile::new(file_id.into(), t),
213 );
214 if let Some(token) = ast::NameRef::cast(expanded.value.parent()) {
215 (expanded.with_value(token), range)
216 } else { 197 } else {
217 continue; 198 // Handle macro token cases
218 } 199 let token = match tree.token_at_offset(offset) {
219 }; 200 TokenAtOffset::None => continue,
201 TokenAtOffset::Single(t) => t,
202 TokenAtOffset::Between(_, t) => t,
203 };
204 let expanded = sema.descend_into_macros(token);
205 match ast::NameRef::cast(expanded.parent()) {
206 Some(name_ref) => name_ref,
207 _ => continue,
208 }
209 };
220 210
221 if let Some(search_range) = search_range {
222 if !range.is_subrange(&search_range) {
223 continue;
224 }
225 }
226 // FIXME: reuse sb 211 // FIXME: reuse sb
227 // See https://github.com/rust-lang/rust/pull/68198#issuecomment-574269098 212 // See https://github.com/rust-lang/rust/pull/68198#issuecomment-574269098
228 213
229 if let Some(d) = classify_name_ref(&mut sb, name_ref.as_ref()) { 214 if let Some(d) = classify_name_ref(&sema, &name_ref) {
230 if d == def { 215 if d == def {
231 let kind = if is_record_lit_name_ref(&name_ref.value) 216 let kind =
232 || is_call_expr_name_ref(&name_ref.value) 217 if is_record_lit_name_ref(&name_ref) || is_call_expr_name_ref(&name_ref) {
233 { 218 ReferenceKind::StructLiteral
234 ReferenceKind::StructLiteral 219 } else {
235 } else { 220 ReferenceKind::Other
236 ReferenceKind::Other 221 };
237 }; 222
238 223 let file_range = sema.original_range(name_ref.syntax());
239 refs.push(Reference { 224 refs.push(Reference {
240 file_range: FileRange { file_id, range }, 225 file_range,
241 kind, 226 kind,
242 access: reference_access(&d, &name_ref.value), 227 access: reference_access(&d, &name_ref),
243 }); 228 });
244 } 229 }
245 } 230 }
@@ -348,6 +333,8 @@ fn is_call_expr_name_ref(name_ref: &ast::NameRef) -> bool {
348 333
349#[cfg(test)] 334#[cfg(test)]
350mod tests { 335mod tests {
336 use test_utils::covers;
337
351 use crate::{ 338 use crate::{
352 mock_analysis::{analysis_and_position, single_file_with_position, MockAnalysis}, 339 mock_analysis::{analysis_and_position, single_file_with_position, MockAnalysis},
353 Declaration, Reference, ReferenceSearchResult, SearchScope, 340 Declaration, Reference, ReferenceSearchResult, SearchScope,
@@ -456,6 +443,27 @@ mod tests {
456 } 443 }
457 444
458 #[test] 445 #[test]
446 fn search_filters_by_range() {
447 covers!(search_filters_by_range);
448 let code = r#"
449 fn foo() {
450 let spam<|> = 92;
451 spam + spam
452 }
453 fn bar() {
454 let spam = 92;
455 spam + spam
456 }
457 "#;
458 let refs = get_all_refs(code);
459 check_result(
460 refs,
461 "spam BIND_PAT FileId(1) [44; 48) Other Write",
462 &["FileId(1) [71; 75) Other Read", "FileId(1) [78; 82) Other Read"],
463 );
464 }
465
466 #[test]
459 fn test_find_all_refs_for_param_inside() { 467 fn test_find_all_refs_for_param_inside() {
460 let code = r#" 468 let code = r#"
461 fn foo(i : u32) -> u32 { 469 fn foo(i : u32) -> u32 {
diff --git a/crates/ra_ide/src/references/classify.rs b/crates/ra_ide/src/references/classify.rs
index 478e18871..91b21429a 100644
--- a/crates/ra_ide/src/references/classify.rs
+++ b/crates/ra_ide/src/references/classify.rs
@@ -1,34 +1,32 @@
1//! Functions that are used to classify an element from its definition or reference. 1//! Functions that are used to classify an element from its definition or reference.
2 2
3use hir::{InFile, PathResolution, SourceBinder}; 3use hir::{PathResolution, Semantics};
4use ra_ide_db::defs::NameDefinition;
5use ra_ide_db::RootDatabase;
4use ra_prof::profile; 6use ra_prof::profile;
5use ra_syntax::{ast, AstNode}; 7use ra_syntax::{ast, AstNode};
6use test_utils::tested_by; 8use test_utils::tested_by;
7 9
8use super::NameDefinition; 10pub use ra_ide_db::defs::{from_module_def, from_struct_field};
9use ra_ide_db::RootDatabase;
10
11pub use ra_ide_db::defs::{classify_name, from_module_def, from_struct_field};
12 11
13pub(crate) fn classify_name_ref( 12pub(crate) fn classify_name_ref(
14 sb: &mut SourceBinder<RootDatabase>, 13 sema: &Semantics<RootDatabase>,
15 name_ref: InFile<&ast::NameRef>, 14 name_ref: &ast::NameRef,
16) -> Option<NameDefinition> { 15) -> Option<NameDefinition> {
17 let _p = profile("classify_name_ref"); 16 let _p = profile("classify_name_ref");
18 17
19 let parent = name_ref.value.syntax().parent()?; 18 let parent = name_ref.syntax().parent()?;
20 let analyzer = sb.analyze(name_ref.map(|it| it.syntax()), None);
21 19
22 if let Some(method_call) = ast::MethodCallExpr::cast(parent.clone()) { 20 if let Some(method_call) = ast::MethodCallExpr::cast(parent.clone()) {
23 tested_by!(goto_def_for_methods); 21 tested_by!(goto_def_for_methods);
24 if let Some(func) = analyzer.resolve_method_call(&method_call) { 22 if let Some(func) = sema.resolve_method_call(&method_call) {
25 return Some(from_module_def(func.into())); 23 return Some(from_module_def(func.into()));
26 } 24 }
27 } 25 }
28 26
29 if let Some(field_expr) = ast::FieldExpr::cast(parent.clone()) { 27 if let Some(field_expr) = ast::FieldExpr::cast(parent.clone()) {
30 tested_by!(goto_def_for_fields); 28 tested_by!(goto_def_for_fields);
31 if let Some(field) = analyzer.resolve_field(&field_expr) { 29 if let Some(field) = sema.resolve_field(&field_expr) {
32 return Some(from_struct_field(field)); 30 return Some(from_struct_field(field));
33 } 31 }
34 } 32 }
@@ -36,22 +34,20 @@ pub(crate) fn classify_name_ref(
36 if let Some(record_field) = ast::RecordField::cast(parent.clone()) { 34 if let Some(record_field) = ast::RecordField::cast(parent.clone()) {
37 tested_by!(goto_def_for_record_fields); 35 tested_by!(goto_def_for_record_fields);
38 tested_by!(goto_def_for_field_init_shorthand); 36 tested_by!(goto_def_for_field_init_shorthand);
39 if let Some(field_def) = analyzer.resolve_record_field(&record_field) { 37 if let Some(field_def) = sema.resolve_record_field(&record_field) {
40 return Some(from_struct_field(field_def)); 38 return Some(from_struct_field(field_def));
41 } 39 }
42 } 40 }
43 41
44 if let Some(macro_call) = parent.ancestors().find_map(ast::MacroCall::cast) { 42 if let Some(macro_call) = parent.ancestors().find_map(ast::MacroCall::cast) {
45 tested_by!(goto_def_for_macros); 43 tested_by!(goto_def_for_macros);
46 if let Some(macro_def) = 44 if let Some(macro_def) = sema.resolve_macro_call(&macro_call) {
47 analyzer.resolve_macro_call(sb.db, name_ref.with_value(&macro_call))
48 {
49 return Some(NameDefinition::Macro(macro_def)); 45 return Some(NameDefinition::Macro(macro_def));
50 } 46 }
51 } 47 }
52 48
53 let path = name_ref.value.syntax().ancestors().find_map(ast::Path::cast)?; 49 let path = name_ref.syntax().ancestors().find_map(ast::Path::cast)?;
54 let resolved = analyzer.resolve_path(sb.db, &path)?; 50 let resolved = sema.resolve_path(&path)?;
55 let res = match resolved { 51 let res = match resolved {
56 PathResolution::Def(def) => from_module_def(def), 52 PathResolution::Def(def) => from_module_def(def),
57 PathResolution::AssocItem(item) => { 53 PathResolution::AssocItem(item) => {
diff --git a/crates/ra_ide/src/references/rename.rs b/crates/ra_ide/src/references/rename.rs
index bdb90020b..5b4bcf434 100644
--- a/crates/ra_ide/src/references/rename.rs
+++ b/crates/ra_ide/src/references/rename.rs
@@ -1,7 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::ModuleSource; 3use hir::{ModuleSource, Semantics};
4use ra_db::{RelativePath, RelativePathBuf, SourceDatabase, SourceDatabaseExt}; 4use ra_db::{RelativePath, RelativePathBuf, SourceDatabaseExt};
5use ra_ide_db::RootDatabase; 5use ra_ide_db::RootDatabase;
6use ra_syntax::{ 6use ra_syntax::{
7 algo::find_node_at_offset, ast, lex_single_valid_syntax_kind, AstNode, SyntaxKind, SyntaxNode, 7 algo::find_node_at_offset, ast, lex_single_valid_syntax_kind, AstNode, SyntaxKind, SyntaxNode,
@@ -24,15 +24,16 @@ pub(crate) fn rename(
24 _ => return None, 24 _ => return None,
25 } 25 }
26 26
27 let parse = db.parse(position.file_id); 27 let sema = Semantics::new(db);
28 let source_file = sema.parse(position.file_id);
28 if let Some((ast_name, ast_module)) = 29 if let Some((ast_name, ast_module)) =
29 find_name_and_module_at_offset(parse.tree().syntax(), position) 30 find_name_and_module_at_offset(source_file.syntax(), position)
30 { 31 {
31 let range = ast_name.syntax().text_range(); 32 let range = ast_name.syntax().text_range();
32 rename_mod(db, &ast_name, &ast_module, position, new_name) 33 rename_mod(&sema, &ast_name, &ast_module, position, new_name)
33 .map(|info| RangeInfo::new(range, info)) 34 .map(|info| RangeInfo::new(range, info))
34 } else { 35 } else {
35 rename_reference(db, position, new_name) 36 rename_reference(sema.db, position, new_name)
36 } 37 }
37} 38}
38 39
@@ -54,7 +55,7 @@ fn source_edit_from_file_id_range(
54} 55}
55 56
56fn rename_mod( 57fn rename_mod(
57 db: &RootDatabase, 58 sema: &Semantics<RootDatabase>,
58 ast_name: &ast::Name, 59 ast_name: &ast::Name,
59 ast_module: &ast::Module, 60 ast_module: &ast::Module,
60 position: FilePosition, 61 position: FilePosition,
@@ -62,13 +63,12 @@ fn rename_mod(
62) -> Option<SourceChange> { 63) -> Option<SourceChange> {
63 let mut source_file_edits = Vec::new(); 64 let mut source_file_edits = Vec::new();
64 let mut file_system_edits = Vec::new(); 65 let mut file_system_edits = Vec::new();
65 let module_src = hir::InFile { file_id: position.file_id.into(), value: ast_module.clone() }; 66 if let Some(module) = sema.to_def(ast_module) {
66 if let Some(module) = hir::SourceBinder::new(db).to_def(module_src) { 67 let src = module.definition_source(sema.db);
67 let src = module.definition_source(db); 68 let file_id = src.file_id.original_file(sema.db);
68 let file_id = src.file_id.original_file(db);
69 match src.value { 69 match src.value {
70 ModuleSource::SourceFile(..) => { 70 ModuleSource::SourceFile(..) => {
71 let mod_path: RelativePathBuf = db.file_relative_path(file_id); 71 let mod_path: RelativePathBuf = sema.db.file_relative_path(file_id);
72 // mod is defined in path/to/dir/mod.rs 72 // mod is defined in path/to/dir/mod.rs
73 let dst_path = if mod_path.file_stem() == Some("mod") { 73 let dst_path = if mod_path.file_stem() == Some("mod") {
74 mod_path 74 mod_path
@@ -82,7 +82,7 @@ fn rename_mod(
82 if let Some(path) = dst_path { 82 if let Some(path) = dst_path {
83 let move_file = FileSystemEdit::MoveFile { 83 let move_file = FileSystemEdit::MoveFile {
84 src: file_id, 84 src: file_id,
85 dst_source_root: db.file_source_root(position.file_id), 85 dst_source_root: sema.db.file_source_root(position.file_id),
86 dst_path: path, 86 dst_path: path,
87 }; 87 };
88 file_system_edits.push(move_file); 88 file_system_edits.push(move_file);
@@ -98,7 +98,7 @@ fn rename_mod(
98 }; 98 };
99 source_file_edits.push(edit); 99 source_file_edits.push(edit);
100 100
101 if let Some(RangeInfo { range: _, info: refs }) = find_all_refs(db, position, None) { 101 if let Some(RangeInfo { range: _, info: refs }) = find_all_refs(sema.db, position, None) {
102 let ref_edits = refs.references.into_iter().map(|reference| { 102 let ref_edits = refs.references.into_iter().map(|reference| {
103 source_edit_from_file_id_range( 103 source_edit_from_file_id_range(
104 reference.file_range.file_id, 104 reference.file_range.file_id,
diff --git a/crates/ra_ide/src/runnables.rs b/crates/ra_ide/src/runnables.rs
index be2a67d0a..74877e90f 100644
--- a/crates/ra_ide/src/runnables.rs
+++ b/crates/ra_ide/src/runnables.rs
@@ -1,8 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{InFile, SourceBinder}; 3use hir::Semantics;
4use itertools::Itertools; 4use itertools::Itertools;
5use ra_db::SourceDatabase;
6use ra_ide_db::RootDatabase; 5use ra_ide_db::RootDatabase;
7use ra_syntax::{ 6use ra_syntax::{
8 ast::{self, AstNode, AttrsOwner, ModuleItemOwner, NameOwner}, 7 ast::{self, AstNode, AttrsOwner, ModuleItemOwner, NameOwner},
@@ -42,46 +41,33 @@ pub enum RunnableKind {
42} 41}
43 42
44pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec<Runnable> { 43pub(crate) fn runnables(db: &RootDatabase, file_id: FileId) -> Vec<Runnable> {
45 let parse = db.parse(file_id); 44 let sema = Semantics::new(db);
46 let mut sb = SourceBinder::new(db); 45 let source_file = sema.parse(file_id);
47 parse.tree().syntax().descendants().filter_map(|i| runnable(db, &mut sb, file_id, i)).collect() 46 source_file.syntax().descendants().filter_map(|i| runnable(&sema, i)).collect()
48} 47}
49 48
50fn runnable( 49fn runnable(sema: &Semantics<RootDatabase>, item: SyntaxNode) -> Option<Runnable> {
51 db: &RootDatabase,
52 source_binder: &mut SourceBinder<RootDatabase>,
53 file_id: FileId,
54 item: SyntaxNode,
55) -> Option<Runnable> {
56 match_ast! { 50 match_ast! {
57 match item { 51 match item {
58 ast::FnDef(it) => { runnable_fn(db, source_binder, file_id, it) }, 52 ast::FnDef(it) => { runnable_fn(sema, it) },
59 ast::Module(it) => { runnable_mod(db, source_binder, file_id, it) }, 53 ast::Module(it) => { runnable_mod(sema, it) },
60 _ => { None }, 54 _ => None,
61 } 55 }
62 } 56 }
63} 57}
64 58
65fn runnable_fn( 59fn runnable_fn(sema: &Semantics<RootDatabase>, fn_def: ast::FnDef) -> Option<Runnable> {
66 db: &RootDatabase,
67 source_binder: &mut SourceBinder<RootDatabase>,
68 file_id: FileId,
69 fn_def: ast::FnDef,
70) -> Option<Runnable> {
71 let name_string = fn_def.name()?.text().to_string(); 60 let name_string = fn_def.name()?.text().to_string();
72 61
73 let kind = if name_string == "main" { 62 let kind = if name_string == "main" {
74 RunnableKind::Bin 63 RunnableKind::Bin
75 } else { 64 } else {
76 let test_id = if let Some(module) = source_binder 65 let test_id = if let Some(module) = sema.to_def(&fn_def).map(|def| def.module(sema.db)) {
77 .to_def(InFile::new(file_id.into(), fn_def.clone()))
78 .map(|def| def.module(db))
79 {
80 let path = module 66 let path = module
81 .path_to_root(db) 67 .path_to_root(sema.db)
82 .into_iter() 68 .into_iter()
83 .rev() 69 .rev()
84 .filter_map(|it| it.name(db)) 70 .filter_map(|it| it.name(sema.db))
85 .map(|name| name.to_string()) 71 .map(|name| name.to_string())
86 .chain(std::iter::once(name_string)) 72 .chain(std::iter::once(name_string))
87 .join("::"); 73 .join("::");
@@ -115,12 +101,7 @@ fn has_test_related_attribute(fn_def: &ast::FnDef) -> bool {
115 .any(|attribute_text| attribute_text.contains("test")) 101 .any(|attribute_text| attribute_text.contains("test"))
116} 102}
117 103
118fn runnable_mod( 104fn runnable_mod(sema: &Semantics<RootDatabase>, module: ast::Module) -> Option<Runnable> {
119 db: &RootDatabase,
120 source_binder: &mut SourceBinder<RootDatabase>,
121 file_id: FileId,
122 module: ast::Module,
123) -> Option<Runnable> {
124 let has_test_function = module 105 let has_test_function = module
125 .item_list()? 106 .item_list()?
126 .items() 107 .items()
@@ -133,9 +114,10 @@ fn runnable_mod(
133 return None; 114 return None;
134 } 115 }
135 let range = module.syntax().text_range(); 116 let range = module.syntax().text_range();
136 let module = source_binder.to_def(InFile::new(file_id.into(), module))?; 117 let module = sema.to_def(&module)?;
137 118
138 let path = module.path_to_root(db).into_iter().rev().filter_map(|it| it.name(db)).join("::"); 119 let path =
120 module.path_to_root(sema.db).into_iter().rev().filter_map(|it| it.name(sema.db)).join("::");
139 Some(Runnable { range, kind: RunnableKind::TestMod { path } }) 121 Some(Runnable { range, kind: RunnableKind::TestMod { path } })
140} 122}
141 123
diff --git a/crates/ra_ide/src/snapshots/highlighting.html b/crates/ra_ide/src/snapshots/highlighting.html
index a02dbaf2f..51851763e 100644
--- a/crates/ra_ide/src/snapshots/highlighting.html
+++ b/crates/ra_ide/src/snapshots/highlighting.html
@@ -10,29 +10,29 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
10.parameter { color: #94BFF3; } 10.parameter { color: #94BFF3; }
11.text { color: #DCDCCC; } 11.text { color: #DCDCCC; }
12.type { color: #7CB8BB; } 12.type { color: #7CB8BB; }
13.type\.builtin { color: #8CD0D3; } 13.type.builtin { color: #8CD0D3; }
14.type\.param { color: #20999D; } 14.type.param { color: #20999D; }
15.attribute { color: #94BFF3; } 15.attribute { color: #94BFF3; }
16.literal { color: #BFEBBF; } 16.literal { color: #BFEBBF; }
17.literal\.numeric { color: #6A8759; } 17.literal.numeric { color: #6A8759; }
18.macro { color: #94BFF3; } 18.macro { color: #94BFF3; }
19.module { color: #AFD8AF; } 19.module { color: #AFD8AF; }
20.variable { color: #DCDCCC; } 20.variable { color: #DCDCCC; }
21.variable\.mut { color: #DCDCCC; text-decoration: underline; } 21.variable.mut { color: #DCDCCC; text-decoration: underline; }
22 22
23.keyword { color: #F0DFAF; } 23.keyword { color: #F0DFAF; }
24.keyword\.unsafe { color: #DFAF8F; } 24.keyword.unsafe { color: #DFAF8F; }
25.keyword\.control { color: #F0DFAF; font-weight: bold; } 25.keyword.control { color: #F0DFAF; font-weight: bold; }
26</style> 26</style>
27<pre><code><span class="attribute">#</span><span class="attribute">[</span><span class="attribute">derive</span><span class="attribute">(</span><span class="attribute">Clone</span><span class="attribute">,</span><span class="attribute"> </span><span class="attribute">Debug</span><span class="attribute">)</span><span class="attribute">]</span> 27<pre><code><span class="attribute">#</span><span class="attribute">[</span><span class="attribute">derive</span><span class="attribute">(</span><span class="attribute">Clone</span><span class="attribute">,</span><span class="attribute"> </span><span class="attribute">Debug</span><span class="attribute">)</span><span class="attribute">]</span>
28<span class="keyword">struct</span> <span class="type">Foo</span> { 28<span class="keyword">struct</span> <span class="type">Foo</span> {
29 <span class="keyword">pub</span> <span class="field">x</span>: <span class="type.builtin">i32</span>, 29 <span class="keyword">pub</span> <span class="field">x</span>: <span class="type builtin">i32</span>,
30 <span class="keyword">pub</span> <span class="field">y</span>: <span class="type.builtin">i32</span>, 30 <span class="keyword">pub</span> <span class="field">y</span>: <span class="type builtin">i32</span>,
31} 31}
32 32
33<span class="keyword">fn</span> <span class="function">foo</span>&lt;<span class="type.param">T</span>&gt;() -&gt; <span class="type.param">T</span> { 33<span class="keyword">fn</span> <span class="function">foo</span>&lt;<span class="type param">T</span>&gt;() -&gt; <span class="type param">T</span> {
34 <span class="macro">unimplemented</span><span class="macro">!</span>(); 34 <span class="macro">unimplemented</span><span class="macro">!</span>();
35 <span class="function">foo</span>::&lt;<span class="type.builtin">i32</span>&gt;(); 35 <span class="function">foo</span>::&lt;<span class="type builtin">i32</span>&gt;();
36} 36}
37 37
38<span class="macro">macro_rules</span><span class="macro">!</span> def_fn { 38<span class="macro">macro_rules</span><span class="macro">!</span> def_fn {
@@ -40,33 +40,33 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
40} 40}
41 41
42<span class="macro">def_fn</span><span class="macro">!</span>{ 42<span class="macro">def_fn</span><span class="macro">!</span>{
43 <span class="keyword">fn</span> <span class="function">bar</span>() -&gt; <span class="type.builtin">u32</span> { 43 <span class="keyword">fn</span> <span class="function">bar</span>() -&gt; <span class="type builtin">u32</span> {
44 <span class="literal.numeric">100</span> 44 <span class="literal numeric">100</span>
45 } 45 }
46} 46}
47 47
48<span class="comment">// comment</span> 48<span class="comment">// comment</span>
49<span class="keyword">fn</span> <span class="function">main</span>() { 49<span class="keyword">fn</span> <span class="function">main</span>() {
50 <span class="macro">println</span><span class="macro">!</span>(<span class="string">"Hello, {}!"</span>, <span class="literal.numeric">92</span>); 50 <span class="macro">println</span><span class="macro">!</span>(<span class="string">"Hello, {}!"</span>, <span class="literal numeric">92</span>);
51 51
52 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable.mut">vec</span> = Vec::new(); 52 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable mutable">vec</span> = Vec::new();
53 <span class="keyword.control">if</span> <span class="keyword">true</span> { 53 <span class="keyword control">if</span> <span class="keyword">true</span> {
54 <span class="keyword">let</span> <span class="variable">x</span> = <span class="literal.numeric">92</span>; 54 <span class="keyword">let</span> <span class="variable">x</span> = <span class="literal numeric">92</span>;
55 <span class="variable.mut">vec</span>.push(<span class="type">Foo</span> { <span class="field">x</span>, <span class="field">y</span>: <span class="literal.numeric">1</span> }); 55 <span class="variable mutable">vec</span>.push(<span class="type">Foo</span> { <span class="field">x</span>, <span class="field">y</span>: <span class="literal numeric">1</span> });
56 } 56 }
57 <span class="keyword.unsafe">unsafe</span> { <span class="variable.mut">vec</span>.set_len(<span class="literal.numeric">0</span>); } 57 <span class="keyword unsafe">unsafe</span> { <span class="variable mutable">vec</span>.set_len(<span class="literal numeric">0</span>); }
58 58
59 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable.mut">x</span> = <span class="literal.numeric">42</span>; 59 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable mutable">x</span> = <span class="literal numeric">42</span>;
60 <span class="keyword">let</span> <span class="variable.mut">y</span> = &<span class="keyword">mut</span> <span class="variable.mut">x</span>; 60 <span class="keyword">let</span> <span class="variable mutable">y</span> = &<span class="keyword">mut</span> <span class="variable mutable">x</span>;
61 <span class="keyword">let</span> <span class="variable">z</span> = &<span class="variable.mut">y</span>; 61 <span class="keyword">let</span> <span class="variable">z</span> = &<span class="variable mutable">y</span>;
62 62
63 <span class="variable.mut">y</span>; 63 <span class="variable mutable">y</span>;
64} 64}
65 65
66<span class="keyword">enum</span> <span class="type">E</span>&lt;<span class="type.param">X</span>&gt; { 66<span class="keyword">enum</span> <span class="type">E</span>&lt;<span class="type param">X</span>&gt; {
67 <span class="constant">V</span>(<span class="type.param">X</span>) 67 <span class="constant">V</span>(<span class="type param">X</span>)
68} 68}
69 69
70<span class="keyword">impl</span>&lt;<span class="type.param">X</span>&gt; <span class="type">E</span>&lt;<span class="type.param">X</span>&gt; { 70<span class="keyword">impl</span>&lt;<span class="type param">X</span>&gt; <span class="type">E</span>&lt;<span class="type param">X</span>&gt; {
71 <span class="keyword">fn</span> <span class="function">new</span>&lt;<span class="type.param">T</span>&gt;() -&gt; <span class="type">E</span>&lt;<span class="type.param">T</span>&gt; {} 71 <span class="keyword">fn</span> <span class="function">new</span>&lt;<span class="type param">T</span>&gt;() -&gt; <span class="type">E</span>&lt;<span class="type param">T</span>&gt; {}
72}</code></pre> \ No newline at end of file 72}</code></pre> \ No newline at end of file
diff --git a/crates/ra_ide/src/snapshots/rainbow_highlighting.html b/crates/ra_ide/src/snapshots/rainbow_highlighting.html
index 95f038f00..1f869867f 100644
--- a/crates/ra_ide/src/snapshots/rainbow_highlighting.html
+++ b/crates/ra_ide/src/snapshots/rainbow_highlighting.html
@@ -10,29 +10,29 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
10.parameter { color: #94BFF3; } 10.parameter { color: #94BFF3; }
11.text { color: #DCDCCC; } 11.text { color: #DCDCCC; }
12.type { color: #7CB8BB; } 12.type { color: #7CB8BB; }
13.type\.builtin { color: #8CD0D3; } 13.type.builtin { color: #8CD0D3; }
14.type\.param { color: #20999D; } 14.type.param { color: #20999D; }
15.attribute { color: #94BFF3; } 15.attribute { color: #94BFF3; }
16.literal { color: #BFEBBF; } 16.literal { color: #BFEBBF; }
17.literal\.numeric { color: #6A8759; } 17.literal.numeric { color: #6A8759; }
18.macro { color: #94BFF3; } 18.macro { color: #94BFF3; }
19.module { color: #AFD8AF; } 19.module { color: #AFD8AF; }
20.variable { color: #DCDCCC; } 20.variable { color: #DCDCCC; }
21.variable\.mut { color: #DCDCCC; text-decoration: underline; } 21.variable.mut { color: #DCDCCC; text-decoration: underline; }
22 22
23.keyword { color: #F0DFAF; } 23.keyword { color: #F0DFAF; }
24.keyword\.unsafe { color: #DFAF8F; } 24.keyword.unsafe { color: #DFAF8F; }
25.keyword\.control { color: #F0DFAF; font-weight: bold; } 25.keyword.control { color: #F0DFAF; font-weight: bold; }
26</style> 26</style>
27<pre><code><span class="keyword">fn</span> <span class="function">main</span>() { 27<pre><code><span class="keyword">fn</span> <span class="function">main</span>() {
28 <span class="keyword">let</span> <span class="variable" data-binding-hash="2217585909179791122" style="color: hsl(280,74%,48%);">hello</span> = <span class="string">"hello"</span>; 28 <span class="keyword">let</span> <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(261,57%,61%);">hello</span> = <span class="string">"hello"</span>;
29 <span class="keyword">let</span> <span class="variable" data-binding-hash="4303609361109701698" style="color: hsl(242,75%,88%);">x</span> = <span class="variable" data-binding-hash="2217585909179791122" style="color: hsl(280,74%,48%);">hello</span>.to_string(); 29 <span class="keyword">let</span> <span class="variable" data-binding-hash="2705725358298919760" style="color: hsl(17,51%,74%);">x</span> = <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(261,57%,61%);">hello</span>.to_string();
30 <span class="keyword">let</span> <span class="variable" data-binding-hash="13865792086344377029" style="color: hsl(340,64%,86%);">y</span> = <span class="variable" data-binding-hash="2217585909179791122" style="color: hsl(280,74%,48%);">hello</span>.to_string(); 30 <span class="keyword">let</span> <span class="variable" data-binding-hash="3365759661443752373" style="color: hsl(127,76%,66%);">y</span> = <span class="variable" data-binding-hash="8121853618659664005" style="color: hsl(261,57%,61%);">hello</span>.to_string();
31 31
32 <span class="keyword">let</span> <span class="variable" data-binding-hash="7011301204224269512" style="color: hsl(198,45%,40%);">x</span> = <span class="string">"other color please!"</span>; 32 <span class="keyword">let</span> <span class="variable" data-binding-hash="794745962933817518" style="color: hsl(19,74%,76%);">x</span> = <span class="string">"other color please!"</span>;
33 <span class="keyword">let</span> <span class="variable" data-binding-hash="12461245066629867975" style="color: hsl(132,91%,68%);">y</span> = <span class="variable" data-binding-hash="7011301204224269512" style="color: hsl(198,45%,40%);">x</span>.to_string(); 33 <span class="keyword">let</span> <span class="variable" data-binding-hash="6717528807933952652" style="color: hsl(85,49%,84%);">y</span> = <span class="variable" data-binding-hash="794745962933817518" style="color: hsl(19,74%,76%);">x</span>.to_string();
34} 34}
35 35
36<span class="keyword">fn</span> <span class="function">bar</span>() { 36<span class="keyword">fn</span> <span class="function">bar</span>() {
37 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable.mut" data-binding-hash="2217585909179791122" style="color: hsl(280,74%,48%);">hello</span> = <span class="string">"hello"</span>; 37 <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable mutable" data-binding-hash="8121853618659664005" style="color: hsl(261,57%,61%);">hello</span> = <span class="string">"hello"</span>;
38}</code></pre> \ No newline at end of file 38}</code></pre> \ No newline at end of file
diff --git a/crates/ra_ide/src/ssr.rs b/crates/ra_ide/src/ssr.rs
index 902c29fc6..c011a2e74 100644
--- a/crates/ra_ide/src/ssr.rs
+++ b/crates/ra_ide/src/ssr.rs
@@ -3,9 +3,8 @@
3use crate::source_change::SourceFileEdit; 3use crate::source_change::SourceFileEdit;
4use ra_ide_db::RootDatabase; 4use ra_ide_db::RootDatabase;
5use ra_syntax::ast::make::expr_from_text; 5use ra_syntax::ast::make::expr_from_text;
6use ra_syntax::AstNode; 6use ra_syntax::ast::{AstToken, Comment};
7use ra_syntax::SyntaxElement; 7use ra_syntax::{AstNode, SyntaxElement, SyntaxNode};
8use ra_syntax::SyntaxNode;
9use ra_text_edit::{TextEdit, TextEditBuilder}; 8use ra_text_edit::{TextEdit, TextEditBuilder};
10use rustc_hash::FxHashMap; 9use rustc_hash::FxHashMap;
11use std::collections::HashMap; 10use std::collections::HashMap;
@@ -72,6 +71,7 @@ type Binding = HashMap<Var, SyntaxNode>;
72struct Match { 71struct Match {
73 place: SyntaxNode, 72 place: SyntaxNode,
74 binding: Binding, 73 binding: Binding,
74 ignored_comments: Vec<Comment>,
75} 75}
76 76
77#[derive(Debug)] 77#[derive(Debug)]
@@ -179,44 +179,61 @@ fn find(pattern: &SsrPattern, code: &SyntaxNode) -> SsrMatches {
179 pattern: &SyntaxElement, 179 pattern: &SyntaxElement,
180 code: &SyntaxElement, 180 code: &SyntaxElement,
181 placeholders: &[Var], 181 placeholders: &[Var],
182 match_: &mut Match, 182 mut match_: Match,
183 ) -> bool { 183 ) -> Option<Match> {
184 match (pattern, code) { 184 match (pattern, code) {
185 (SyntaxElement::Token(ref pattern), SyntaxElement::Token(ref code)) => { 185 (SyntaxElement::Token(ref pattern), SyntaxElement::Token(ref code)) => {
186 pattern.text() == code.text() 186 if pattern.text() == code.text() {
187 Some(match_)
188 } else {
189 None
190 }
187 } 191 }
188 (SyntaxElement::Node(ref pattern), SyntaxElement::Node(ref code)) => { 192 (SyntaxElement::Node(ref pattern), SyntaxElement::Node(ref code)) => {
189 if placeholders.iter().any(|n| n.0.as_str() == pattern.text()) { 193 if placeholders.iter().any(|n| n.0.as_str() == pattern.text()) {
190 match_.binding.insert(Var(pattern.text().to_string()), code.clone()); 194 match_.binding.insert(Var(pattern.text().to_string()), code.clone());
191 true 195 Some(match_)
192 } else { 196 } else {
193 pattern.green().children().count() == code.green().children().count() 197 let mut pattern_children = pattern
194 && pattern 198 .children_with_tokens()
195 .children_with_tokens() 199 .filter(|element| !element.kind().is_trivia());
196 .zip(code.children_with_tokens()) 200 let mut code_children =
197 .all(|(a, b)| check(&a, &b, placeholders, match_)) 201 code.children_with_tokens().filter(|element| !element.kind().is_trivia());
202 let new_ignored_comments = code.children_with_tokens().filter_map(|element| {
203 element.as_token().and_then(|token| Comment::cast(token.clone()))
204 });
205 match_.ignored_comments.extend(new_ignored_comments);
206 let match_from_children = pattern_children
207 .by_ref()
208 .zip(code_children.by_ref())
209 .fold(Some(match_), |accum, (a, b)| {
210 accum.and_then(|match_| check(&a, &b, placeholders, match_))
211 });
212 match_from_children.and_then(|match_| {
213 if pattern_children.count() == 0 && code_children.count() == 0 {
214 Some(match_)
215 } else {
216 None
217 }
218 })
198 } 219 }
199 } 220 }
200 _ => false, 221 _ => None,
201 } 222 }
202 } 223 }
203 let kind = pattern.pattern.kind(); 224 let kind = pattern.pattern.kind();
204 let matches = code 225 let matches = code
205 .descendants_with_tokens() 226 .descendants()
206 .filter(|n| n.kind() == kind) 227 .filter(|n| n.kind() == kind)
207 .filter_map(|code| { 228 .filter_map(|code| {
208 let mut match_ = 229 let match_ =
209 Match { place: code.as_node().unwrap().clone(), binding: HashMap::new() }; 230 Match { place: code.clone(), binding: HashMap::new(), ignored_comments: vec![] };
210 if check( 231 check(
211 &SyntaxElement::from(pattern.pattern.clone()), 232 &SyntaxElement::from(pattern.pattern.clone()),
212 &code, 233 &SyntaxElement::from(code),
213 &pattern.vars, 234 &pattern.vars,
214 &mut match_, 235 match_,
215 ) { 236 )
216 Some(match_)
217 } else {
218 None
219 }
220 }) 237 })
221 .collect(); 238 .collect();
222 SsrMatches { matches } 239 SsrMatches { matches }
@@ -225,18 +242,28 @@ fn find(pattern: &SsrPattern, code: &SyntaxNode) -> SsrMatches {
225fn replace(matches: &SsrMatches, template: &SsrTemplate) -> TextEdit { 242fn replace(matches: &SsrMatches, template: &SsrTemplate) -> TextEdit {
226 let mut builder = TextEditBuilder::default(); 243 let mut builder = TextEditBuilder::default();
227 for match_ in &matches.matches { 244 for match_ in &matches.matches {
228 builder.replace(match_.place.text_range(), render_replace(&match_.binding, template)); 245 builder.replace(
246 match_.place.text_range(),
247 render_replace(&match_.binding, &match_.ignored_comments, template),
248 );
229 } 249 }
230 builder.finish() 250 builder.finish()
231} 251}
232 252
233fn render_replace(binding: &Binding, template: &SsrTemplate) -> String { 253fn render_replace(
254 binding: &Binding,
255 ignored_comments: &Vec<Comment>,
256 template: &SsrTemplate,
257) -> String {
234 let mut builder = TextEditBuilder::default(); 258 let mut builder = TextEditBuilder::default();
235 for element in template.template.descendants() { 259 for element in template.template.descendants() {
236 if let Some(var) = template.placeholders.get(&element) { 260 if let Some(var) = template.placeholders.get(&element) {
237 builder.replace(element.text_range(), binding[var].to_string()) 261 builder.replace(element.text_range(), binding[var].to_string())
238 } 262 }
239 } 263 }
264 for comment in ignored_comments {
265 builder.insert(template.template.text_range().end(), comment.syntax().to_string())
266 }
240 builder.finish().apply(&template.template.text().to_string()) 267 builder.finish().apply(&template.template.text().to_string())
241} 268}
242 269
@@ -325,4 +352,66 @@ mod tests {
325 let edit = replace(&matches, &query.template); 352 let edit = replace(&matches, &query.template);
326 assert_eq!(edit.apply(input), "fn main() { bar(1+2); }"); 353 assert_eq!(edit.apply(input), "fn main() { bar(1+2); }");
327 } 354 }
355
356 fn assert_ssr_transform(query: &str, input: &str, result: &str) {
357 let query: SsrQuery = query.parse().unwrap();
358 let code = SourceFile::parse(input).tree();
359 let matches = find(&query.pattern, code.syntax());
360 let edit = replace(&matches, &query.template);
361 assert_eq!(edit.apply(input), result);
362 }
363
364 #[test]
365 fn ssr_function_to_method() {
366 assert_ssr_transform(
367 "my_function($a:expr, $b:expr) ==>> ($a).my_method($b)",
368 "loop { my_function( other_func(x, y), z + w) }",
369 "loop { (other_func(x, y)).my_method(z + w) }",
370 )
371 }
372
373 #[test]
374 fn ssr_nested_function() {
375 assert_ssr_transform(
376 "foo($a:expr, $b:expr, $c:expr) ==>> bar($c, baz($a, $b))",
377 "fn main { foo (x + value.method(b), x+y-z, true && false) }",
378 "fn main { bar(true && false, baz(x + value.method(b), x+y-z)) }",
379 )
380 }
381
382 #[test]
383 fn ssr_expected_spacing() {
384 assert_ssr_transform(
385 "foo($x:expr) + bar() ==>> bar($x)",
386 "fn main() { foo(5) + bar() }",
387 "fn main() { bar(5) }",
388 );
389 }
390
391 #[test]
392 fn ssr_with_extra_space() {
393 assert_ssr_transform(
394 "foo($x:expr ) + bar() ==>> bar($x)",
395 "fn main() { foo( 5 ) +bar( ) }",
396 "fn main() { bar(5) }",
397 );
398 }
399
400 #[test]
401 fn ssr_keeps_nested_comment() {
402 assert_ssr_transform(
403 "foo($x:expr) ==>> bar($x)",
404 "fn main() { foo(other(5 /* using 5 */)) }",
405 "fn main() { bar(other(5 /* using 5 */)) }",
406 )
407 }
408
409 #[test]
410 fn ssr_keeps_comment() {
411 assert_ssr_transform(
412 "foo($x:expr) ==>> bar($x)",
413 "fn main() { foo(5 /* using 5 */) }",
414 "fn main() { bar(5)/* using 5 */ }",
415 )
416 }
328} 417}
diff --git a/crates/ra_ide/src/syntax_highlighting.rs b/crates/ra_ide/src/syntax_highlighting.rs
index 812229b4e..5f11b091c 100644
--- a/crates/ra_ide/src/syntax_highlighting.rs
+++ b/crates/ra_ide/src/syntax_highlighting.rs
@@ -1,54 +1,30 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir::{HirFileId, InFile, Name, SourceAnalyzer, SourceBinder}; 3mod tags;
4use ra_db::SourceDatabase; 4mod html;
5use ra_ide_db::{defs::NameDefinition, RootDatabase}; 5
6use hir::{Name, Semantics};
7use ra_ide_db::{
8 defs::{classify_name, NameDefinition},
9 RootDatabase,
10};
6use ra_prof::profile; 11use ra_prof::profile;
7use ra_syntax::{ 12use ra_syntax::{
8 ast, AstNode, Direction, SyntaxElement, SyntaxKind, SyntaxKind::*, SyntaxToken, TextRange, 13 ast, AstNode, Direction, NodeOrToken, SyntaxElement, SyntaxKind, SyntaxKind::*, SyntaxToken,
9 WalkEvent, T, 14 TextRange, WalkEvent, T,
10}; 15};
11use rustc_hash::FxHashMap; 16use rustc_hash::FxHashMap;
12 17
13use crate::{ 18use crate::{references::classify_name_ref, FileId};
14 expand::descend_into_macros_with_analyzer,
15 references::{classify_name, classify_name_ref},
16 FileId,
17};
18 19
19pub mod tags { 20pub use tags::{Highlight, HighlightModifier, HighlightModifiers, HighlightTag};
20 pub const FIELD: &str = "field"; 21
21 pub const FUNCTION: &str = "function"; 22pub(crate) use html::highlight_as_html;
22 pub const MODULE: &str = "module";
23 pub const CONSTANT: &str = "constant";
24 pub const MACRO: &str = "macro";
25
26 pub const VARIABLE: &str = "variable";
27 pub const VARIABLE_MUT: &str = "variable.mut";
28
29 pub const TYPE: &str = "type";
30 pub const TYPE_BUILTIN: &str = "type.builtin";
31 pub const TYPE_SELF: &str = "type.self";
32 pub const TYPE_PARAM: &str = "type.param";
33 pub const TYPE_LIFETIME: &str = "type.lifetime";
34
35 pub const LITERAL_BYTE: &str = "literal.byte";
36 pub const LITERAL_NUMERIC: &str = "literal.numeric";
37 pub const LITERAL_CHAR: &str = "literal.char";
38
39 pub const LITERAL_COMMENT: &str = "comment";
40 pub const LITERAL_STRING: &str = "string";
41 pub const LITERAL_ATTRIBUTE: &str = "attribute";
42
43 pub const KEYWORD: &str = "keyword";
44 pub const KEYWORD_UNSAFE: &str = "keyword.unsafe";
45 pub const KEYWORD_CONTROL: &str = "keyword.control";
46}
47 23
48#[derive(Debug)] 24#[derive(Debug)]
49pub struct HighlightedRange { 25pub struct HighlightedRange {
50 pub range: TextRange, 26 pub range: TextRange,
51 pub tag: &'static str, 27 pub highlight: Highlight,
52 pub binding_hash: Option<u64>, 28 pub binding_hash: Option<u64>,
53} 29}
54 30
@@ -67,54 +43,82 @@ fn is_control_keyword(kind: SyntaxKind) -> bool {
67 } 43 }
68} 44}
69 45
70pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Vec<HighlightedRange> { 46pub(crate) fn highlight(
47 db: &RootDatabase,
48 file_id: FileId,
49 range: Option<TextRange>,
50) -> Vec<HighlightedRange> {
71 let _p = profile("highlight"); 51 let _p = profile("highlight");
72 let parse = db.parse(file_id); 52 let sema = Semantics::new(db);
73 let root = parse.tree().syntax().clone(); 53 let root = sema.parse(file_id).syntax().clone();
74 54
75 let mut sb = SourceBinder::new(db);
76 let mut bindings_shadow_count: FxHashMap<Name, u32> = FxHashMap::default(); 55 let mut bindings_shadow_count: FxHashMap<Name, u32> = FxHashMap::default();
77 let mut res = Vec::new(); 56 let mut res = Vec::new();
78 let analyzer = sb.analyze(InFile::new(file_id.into(), &root), None);
79 57
80 let mut in_macro_call = None; 58 let mut in_macro_call = None;
81 59
60 // Determine the root based on the given range.
61 let (root, highlight_range) = if let Some(range) = range {
62 let root = match root.covering_element(range) {
63 NodeOrToken::Node(node) => node,
64 NodeOrToken::Token(token) => token.parent(),
65 };
66 (root, range)
67 } else {
68 (root.clone(), root.text_range())
69 };
70
82 for event in root.preorder_with_tokens() { 71 for event in root.preorder_with_tokens() {
83 match event { 72 match event {
84 WalkEvent::Enter(node) => match node.kind() { 73 WalkEvent::Enter(node) => {
85 MACRO_CALL => { 74 if node.text_range().intersection(&highlight_range).is_none() {
86 in_macro_call = Some(node.clone()); 75 continue;
87 if let Some(range) = highlight_macro(InFile::new(file_id.into(), node)) {
88 res.push(HighlightedRange { range, tag: tags::MACRO, binding_hash: None });
89 }
90 } 76 }
91 _ if in_macro_call.is_some() => { 77
92 if let Some(token) = node.as_token() { 78 match node.kind() {
93 if let Some((tag, binding_hash)) = highlight_token_tree( 79 MACRO_CALL => {
94 &mut sb, 80 in_macro_call = Some(node.clone());
95 &analyzer, 81 if let Some(range) = highlight_macro(node) {
96 &mut bindings_shadow_count, 82 res.push(HighlightedRange {
97 InFile::new(file_id.into(), token.clone()), 83 range,
98 ) { 84 highlight: HighlightTag::Macro.into(),
85 binding_hash: None,
86 });
87 }
88 }
89 _ if in_macro_call.is_some() => {
90 if let Some(token) = node.as_token() {
91 if let Some((highlight, binding_hash)) = highlight_token_tree(
92 &sema,
93 &mut bindings_shadow_count,
94 token.clone(),
95 ) {
96 res.push(HighlightedRange {
97 range: node.text_range(),
98 highlight,
99 binding_hash,
100 });
101 }
102 }
103 }
104 _ => {
105 if let Some((highlight, binding_hash)) =
106 highlight_node(&sema, &mut bindings_shadow_count, node.clone())
107 {
99 res.push(HighlightedRange { 108 res.push(HighlightedRange {
100 range: node.text_range(), 109 range: node.text_range(),
101 tag, 110 highlight,
102 binding_hash, 111 binding_hash,
103 }); 112 });
104 } 113 }
105 } 114 }
106 } 115 }
107 _ => { 116 }
108 if let Some((tag, binding_hash)) = highlight_node(
109 &mut sb,
110 &mut bindings_shadow_count,
111 InFile::new(file_id.into(), node.clone()),
112 ) {
113 res.push(HighlightedRange { range: node.text_range(), tag, binding_hash });
114 }
115 }
116 },
117 WalkEvent::Leave(node) => { 117 WalkEvent::Leave(node) => {
118 if node.text_range().intersection(&highlight_range).is_none() {
119 continue;
120 }
121
118 if let Some(m) = in_macro_call.as_ref() { 122 if let Some(m) = in_macro_call.as_ref() {
119 if *m == node { 123 if *m == node {
120 in_macro_call = None; 124 in_macro_call = None;
@@ -127,8 +131,8 @@ pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Vec<HighlightedRa
127 res 131 res
128} 132}
129 133
130fn highlight_macro(node: InFile<SyntaxElement>) -> Option<TextRange> { 134fn highlight_macro(node: SyntaxElement) -> Option<TextRange> {
131 let macro_call = ast::MacroCall::cast(node.value.as_node()?.clone())?; 135 let macro_call = ast::MacroCall::cast(node.as_node()?.clone())?;
132 let path = macro_call.path()?; 136 let path = macro_call.path()?;
133 let name_ref = path.segment()?.name_ref()?; 137 let name_ref = path.segment()?.name_ref()?;
134 138
@@ -145,56 +149,56 @@ fn highlight_macro(node: InFile<SyntaxElement>) -> Option<TextRange> {
145} 149}
146 150
147fn highlight_token_tree( 151fn highlight_token_tree(
148 sb: &mut SourceBinder<RootDatabase>, 152 sema: &Semantics<RootDatabase>,
149 analyzer: &SourceAnalyzer,
150 bindings_shadow_count: &mut FxHashMap<Name, u32>, 153 bindings_shadow_count: &mut FxHashMap<Name, u32>,
151 token: InFile<SyntaxToken>, 154 token: SyntaxToken,
152) -> Option<(&'static str, Option<u64>)> { 155) -> Option<(Highlight, Option<u64>)> {
153 if token.value.parent().kind() != TOKEN_TREE { 156 if token.parent().kind() != TOKEN_TREE {
154 return None; 157 return None;
155 } 158 }
156 let token = descend_into_macros_with_analyzer(sb.db, analyzer, token); 159 let token = sema.descend_into_macros(token.clone());
157 let expanded = { 160 let expanded = {
158 let parent = token.value.parent(); 161 let parent = token.parent();
159 // We only care Name and Name_ref 162 // We only care Name and Name_ref
160 match (token.value.kind(), parent.kind()) { 163 match (token.kind(), parent.kind()) {
161 (IDENT, NAME) | (IDENT, NAME_REF) => token.with_value(parent.into()), 164 (IDENT, NAME) | (IDENT, NAME_REF) => parent.into(),
162 _ => token.map(|it| it.into()), 165 _ => token.into(),
163 } 166 }
164 }; 167 };
165 168
166 highlight_node(sb, bindings_shadow_count, expanded) 169 highlight_node(sema, bindings_shadow_count, expanded)
167} 170}
168 171
169fn highlight_node( 172fn highlight_node(
170 sb: &mut SourceBinder<RootDatabase>, 173 sema: &Semantics<RootDatabase>,
171 bindings_shadow_count: &mut FxHashMap<Name, u32>, 174 bindings_shadow_count: &mut FxHashMap<Name, u32>,
172 node: InFile<SyntaxElement>, 175 node: SyntaxElement,
173) -> Option<(&'static str, Option<u64>)> { 176) -> Option<(Highlight, Option<u64>)> {
174 let db = sb.db; 177 let db = sema.db;
175 let mut binding_hash = None; 178 let mut binding_hash = None;
176 let tag = match node.value.kind() { 179 let highlight: Highlight = match node.kind() {
177 FN_DEF => { 180 FN_DEF => {
178 bindings_shadow_count.clear(); 181 bindings_shadow_count.clear();
179 return None; 182 return None;
180 } 183 }
181 COMMENT => tags::LITERAL_COMMENT, 184 COMMENT => HighlightTag::Comment.into(),
182 STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => tags::LITERAL_STRING, 185 STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => HighlightTag::LiteralString.into(),
183 ATTR => tags::LITERAL_ATTRIBUTE, 186 ATTR => HighlightTag::Attribute.into(),
184 // Special-case field init shorthand 187 // Special-case field init shorthand
185 NAME_REF if node.value.parent().and_then(ast::RecordField::cast).is_some() => tags::FIELD, 188 NAME_REF if node.parent().and_then(ast::RecordField::cast).is_some() => {
186 NAME_REF if node.value.ancestors().any(|it| it.kind() == ATTR) => return None, 189 HighlightTag::Field.into()
190 }
191 NAME_REF if node.ancestors().any(|it| it.kind() == ATTR) => return None,
187 NAME_REF => { 192 NAME_REF => {
188 let name_ref = node.value.as_node().cloned().and_then(ast::NameRef::cast).unwrap(); 193 let name_ref = node.as_node().cloned().and_then(ast::NameRef::cast).unwrap();
189 let name_kind = classify_name_ref(sb, node.with_value(&name_ref)); 194 let name_kind = classify_name_ref(sema, &name_ref);
190 match name_kind { 195 match name_kind {
191 Some(name_kind) => { 196 Some(name_kind) => {
192 if let NameDefinition::Local(local) = &name_kind { 197 if let NameDefinition::Local(local) = &name_kind {
193 if let Some(name) = local.name(db) { 198 if let Some(name) = local.name(db) {
194 let shadow_count = 199 let shadow_count =
195 bindings_shadow_count.entry(name.clone()).or_default(); 200 bindings_shadow_count.entry(name.clone()).or_default();
196 binding_hash = 201 binding_hash = Some(calc_binding_hash(&name, *shadow_count))
197 Some(calc_binding_hash(node.file_id, &name, *shadow_count))
198 } 202 }
199 }; 203 };
200 204
@@ -204,41 +208,45 @@ fn highlight_node(
204 } 208 }
205 } 209 }
206 NAME => { 210 NAME => {
207 let name = node.value.as_node().cloned().and_then(ast::Name::cast).unwrap(); 211 let name = node.as_node().cloned().and_then(ast::Name::cast).unwrap();
208 let name_kind = classify_name(sb, node.with_value(&name)); 212 let name_kind = classify_name(sema, &name);
209 213
210 if let Some(NameDefinition::Local(local)) = &name_kind { 214 if let Some(NameDefinition::Local(local)) = &name_kind {
211 if let Some(name) = local.name(db) { 215 if let Some(name) = local.name(db) {
212 let shadow_count = bindings_shadow_count.entry(name.clone()).or_default(); 216 let shadow_count = bindings_shadow_count.entry(name.clone()).or_default();
213 *shadow_count += 1; 217 *shadow_count += 1;
214 binding_hash = Some(calc_binding_hash(node.file_id, &name, *shadow_count)) 218 binding_hash = Some(calc_binding_hash(&name, *shadow_count))
215 } 219 }
216 }; 220 };
217 221
218 match name_kind { 222 match name_kind {
219 Some(name_kind) => highlight_name(db, name_kind), 223 Some(name_kind) => highlight_name(db, name_kind),
220 None => name.syntax().parent().map_or(tags::FUNCTION, |x| match x.kind() { 224 None => name.syntax().parent().map_or(HighlightTag::Function.into(), |x| {
221 STRUCT_DEF | ENUM_DEF | TRAIT_DEF | TYPE_ALIAS_DEF => tags::TYPE, 225 match x.kind() {
222 TYPE_PARAM => tags::TYPE_PARAM, 226 STRUCT_DEF | ENUM_DEF | TRAIT_DEF | TYPE_ALIAS_DEF => {
223 RECORD_FIELD_DEF => tags::FIELD, 227 HighlightTag::Type.into()
224 _ => tags::FUNCTION, 228 }
229 TYPE_PARAM => HighlightTag::TypeParam.into(),
230 RECORD_FIELD_DEF => HighlightTag::Field.into(),
231 _ => HighlightTag::Function.into(),
232 }
225 }), 233 }),
226 } 234 }
227 } 235 }
228 INT_NUMBER | FLOAT_NUMBER => tags::LITERAL_NUMERIC, 236 INT_NUMBER | FLOAT_NUMBER => HighlightTag::LiteralNumeric.into(),
229 BYTE => tags::LITERAL_BYTE, 237 BYTE => HighlightTag::LiteralByte.into(),
230 CHAR => tags::LITERAL_CHAR, 238 CHAR => HighlightTag::LiteralChar.into(),
231 LIFETIME => tags::TYPE_LIFETIME, 239 LIFETIME => HighlightTag::TypeLifetime.into(),
232 T![unsafe] => tags::KEYWORD_UNSAFE, 240 T![unsafe] => HighlightTag::Keyword | HighlightModifier::Unsafe,
233 k if is_control_keyword(k) => tags::KEYWORD_CONTROL, 241 k if is_control_keyword(k) => HighlightTag::Keyword | HighlightModifier::Control,
234 k if k.is_keyword() => tags::KEYWORD, 242 k if k.is_keyword() => HighlightTag::Keyword.into(),
235 243
236 _ => return None, 244 _ => return None,
237 }; 245 };
238 246
239 return Some((tag, binding_hash)); 247 return Some((highlight, binding_hash));
240 248
241 fn calc_binding_hash(file_id: HirFileId, name: &Name, shadow_count: u32) -> u64 { 249 fn calc_binding_hash(name: &Name, shadow_count: u32) -> u64 {
242 fn hash<T: std::hash::Hash + std::fmt::Debug>(x: T) -> u64 { 250 fn hash<T: std::hash::Hash + std::fmt::Debug>(x: T) -> u64 {
243 use std::{collections::hash_map::DefaultHasher, hash::Hasher}; 251 use std::{collections::hash_map::DefaultHasher, hash::Hasher};
244 252
@@ -247,134 +255,48 @@ fn highlight_node(
247 hasher.finish() 255 hasher.finish()
248 } 256 }
249 257
250 hash((file_id, name, shadow_count)) 258 hash((name, shadow_count))
251 } 259 }
252} 260}
253 261
254pub(crate) fn highlight_as_html(db: &RootDatabase, file_id: FileId, rainbow: bool) -> String { 262fn highlight_name(db: &RootDatabase, def: NameDefinition) -> Highlight {
255 let parse = db.parse(file_id);
256
257 fn rainbowify(seed: u64) -> String {
258 use rand::prelude::*;
259 let mut rng = SmallRng::seed_from_u64(seed);
260 format!(
261 "hsl({h},{s}%,{l}%)",
262 h = rng.gen_range::<u16, _, _>(0, 361),
263 s = rng.gen_range::<u16, _, _>(42, 99),
264 l = rng.gen_range::<u16, _, _>(40, 91),
265 )
266 }
267
268 let mut ranges = highlight(db, file_id);
269 ranges.sort_by_key(|it| it.range.start());
270 // quick non-optimal heuristic to intersect token ranges and highlighted ranges
271 let mut frontier = 0;
272 let mut could_intersect: Vec<&HighlightedRange> = Vec::new();
273
274 let mut buf = String::new();
275 buf.push_str(&STYLE);
276 buf.push_str("<pre><code>");
277 let tokens = parse.tree().syntax().descendants_with_tokens().filter_map(|it| it.into_token());
278 for token in tokens {
279 could_intersect.retain(|it| token.text_range().start() <= it.range.end());
280 while let Some(r) = ranges.get(frontier) {
281 if r.range.start() <= token.text_range().end() {
282 could_intersect.push(r);
283 frontier += 1;
284 } else {
285 break;
286 }
287 }
288 let text = html_escape(&token.text());
289 let ranges = could_intersect
290 .iter()
291 .filter(|it| token.text_range().is_subrange(&it.range))
292 .collect::<Vec<_>>();
293 if ranges.is_empty() {
294 buf.push_str(&text);
295 } else {
296 let classes = ranges.iter().map(|x| x.tag).collect::<Vec<_>>().join(" ");
297 let binding_hash = ranges.first().and_then(|x| x.binding_hash);
298 let color = match (rainbow, binding_hash) {
299 (true, Some(hash)) => format!(
300 " data-binding-hash=\"{}\" style=\"color: {};\"",
301 hash,
302 rainbowify(hash)
303 ),
304 _ => "".into(),
305 };
306 buf.push_str(&format!("<span class=\"{}\"{}>{}</span>", classes, color, text));
307 }
308 }
309 buf.push_str("</code></pre>");
310 buf
311}
312
313fn highlight_name(db: &RootDatabase, def: NameDefinition) -> &'static str {
314 match def { 263 match def {
315 NameDefinition::Macro(_) => tags::MACRO, 264 NameDefinition::Macro(_) => HighlightTag::Macro,
316 NameDefinition::StructField(_) => tags::FIELD, 265 NameDefinition::StructField(_) => HighlightTag::Field,
317 NameDefinition::ModuleDef(hir::ModuleDef::Module(_)) => tags::MODULE, 266 NameDefinition::ModuleDef(hir::ModuleDef::Module(_)) => HighlightTag::Module,
318 NameDefinition::ModuleDef(hir::ModuleDef::Function(_)) => tags::FUNCTION, 267 NameDefinition::ModuleDef(hir::ModuleDef::Function(_)) => HighlightTag::Function,
319 NameDefinition::ModuleDef(hir::ModuleDef::Adt(_)) => tags::TYPE, 268 NameDefinition::ModuleDef(hir::ModuleDef::Adt(_)) => HighlightTag::Type,
320 NameDefinition::ModuleDef(hir::ModuleDef::EnumVariant(_)) => tags::CONSTANT, 269 NameDefinition::ModuleDef(hir::ModuleDef::EnumVariant(_)) => HighlightTag::Constant,
321 NameDefinition::ModuleDef(hir::ModuleDef::Const(_)) => tags::CONSTANT, 270 NameDefinition::ModuleDef(hir::ModuleDef::Const(_)) => HighlightTag::Constant,
322 NameDefinition::ModuleDef(hir::ModuleDef::Static(_)) => tags::CONSTANT, 271 NameDefinition::ModuleDef(hir::ModuleDef::Static(_)) => HighlightTag::Constant,
323 NameDefinition::ModuleDef(hir::ModuleDef::Trait(_)) => tags::TYPE, 272 NameDefinition::ModuleDef(hir::ModuleDef::Trait(_)) => HighlightTag::Type,
324 NameDefinition::ModuleDef(hir::ModuleDef::TypeAlias(_)) => tags::TYPE, 273 NameDefinition::ModuleDef(hir::ModuleDef::TypeAlias(_)) => HighlightTag::Type,
325 NameDefinition::ModuleDef(hir::ModuleDef::BuiltinType(_)) => tags::TYPE_BUILTIN, 274 NameDefinition::ModuleDef(hir::ModuleDef::BuiltinType(_)) => {
326 NameDefinition::SelfType(_) => tags::TYPE_SELF, 275 return HighlightTag::Type | HighlightModifier::Builtin
327 NameDefinition::TypeParam(_) => tags::TYPE_PARAM, 276 }
277 NameDefinition::SelfType(_) => HighlightTag::TypeSelf,
278 NameDefinition::TypeParam(_) => HighlightTag::TypeParam,
328 NameDefinition::Local(local) => { 279 NameDefinition::Local(local) => {
280 let mut h = Highlight::new(HighlightTag::Variable);
329 if local.is_mut(db) || local.ty(db).is_mutable_reference() { 281 if local.is_mut(db) || local.ty(db).is_mutable_reference() {
330 tags::VARIABLE_MUT 282 h |= HighlightModifier::Mutable;
331 } else {
332 tags::VARIABLE
333 } 283 }
284 return h;
334 } 285 }
335 } 286 }
287 .into()
336} 288}
337 289
338//FIXME: like, real html escaping
339fn html_escape(text: &str) -> String {
340 text.replace("<", "&lt;").replace(">", "&gt;")
341}
342
343const STYLE: &str = "
344<style>
345body { margin: 0; }
346pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
347
348.comment { color: #7F9F7F; }
349.string { color: #CC9393; }
350.field { color: #94BFF3; }
351.function { color: #93E0E3; }
352.parameter { color: #94BFF3; }
353.text { color: #DCDCCC; }
354.type { color: #7CB8BB; }
355.type\\.builtin { color: #8CD0D3; }
356.type\\.param { color: #20999D; }
357.attribute { color: #94BFF3; }
358.literal { color: #BFEBBF; }
359.literal\\.numeric { color: #6A8759; }
360.macro { color: #94BFF3; }
361.module { color: #AFD8AF; }
362.variable { color: #DCDCCC; }
363.variable\\.mut { color: #DCDCCC; text-decoration: underline; }
364
365.keyword { color: #F0DFAF; }
366.keyword\\.unsafe { color: #DFAF8F; }
367.keyword\\.control { color: #F0DFAF; font-weight: bold; }
368</style>
369";
370
371#[cfg(test)] 290#[cfg(test)]
372mod tests { 291mod tests {
373 use std::fs; 292 use std::fs;
374 293
375 use test_utils::{assert_eq_text, project_dir, read_text}; 294 use test_utils::{assert_eq_text, project_dir, read_text};
376 295
377 use crate::mock_analysis::{single_file, MockAnalysis}; 296 use crate::{
297 mock_analysis::{single_file, MockAnalysis},
298 FileRange, TextRange,
299 };
378 300
379 #[test] 301 #[test]
380 fn test_highlighting() { 302 fn test_highlighting() {
@@ -475,4 +397,26 @@ fn bar() {
475 let _ = host.analysis().highlight(file_id).unwrap(); 397 let _ = host.analysis().highlight(file_id).unwrap();
476 // eprintln!("elapsed: {:?}", t.elapsed()); 398 // eprintln!("elapsed: {:?}", t.elapsed());
477 } 399 }
400
401 #[test]
402 fn test_ranges() {
403 let (analysis, file_id) = single_file(
404 r#"
405 #[derive(Clone, Debug)]
406 struct Foo {
407 pub x: i32,
408 pub y: i32,
409 }"#,
410 );
411
412 // The "x"
413 let highlights = &analysis
414 .highlight_range(FileRange {
415 file_id,
416 range: TextRange::offset_len(82.into(), 1.into()),
417 })
418 .unwrap();
419
420 assert_eq!(&highlights[0].highlight.to_string(), "field");
421 }
478} 422}
diff --git a/crates/ra_ide/src/syntax_highlighting/html.rs b/crates/ra_ide/src/syntax_highlighting/html.rs
new file mode 100644
index 000000000..210d9a57b
--- /dev/null
+++ b/crates/ra_ide/src/syntax_highlighting/html.rs
@@ -0,0 +1,104 @@
1//! Renders a bit of code as HTML.
2
3use ra_db::SourceDatabase;
4use ra_syntax::AstNode;
5
6use crate::{FileId, HighlightedRange, RootDatabase};
7
8use super::highlight;
9
10pub(crate) fn highlight_as_html(db: &RootDatabase, file_id: FileId, rainbow: bool) -> String {
11 let parse = db.parse(file_id);
12
13 fn rainbowify(seed: u64) -> String {
14 use rand::prelude::*;
15 let mut rng = SmallRng::seed_from_u64(seed);
16 format!(
17 "hsl({h},{s}%,{l}%)",
18 h = rng.gen_range::<u16, _, _>(0, 361),
19 s = rng.gen_range::<u16, _, _>(42, 99),
20 l = rng.gen_range::<u16, _, _>(40, 91),
21 )
22 }
23
24 let mut ranges = highlight(db, file_id, None);
25 ranges.sort_by_key(|it| it.range.start());
26 // quick non-optimal heuristic to intersect token ranges and highlighted ranges
27 let mut frontier = 0;
28 let mut could_intersect: Vec<&HighlightedRange> = Vec::new();
29
30 let mut buf = String::new();
31 buf.push_str(&STYLE);
32 buf.push_str("<pre><code>");
33 let tokens = parse.tree().syntax().descendants_with_tokens().filter_map(|it| it.into_token());
34 for token in tokens {
35 could_intersect.retain(|it| token.text_range().start() <= it.range.end());
36 while let Some(r) = ranges.get(frontier) {
37 if r.range.start() <= token.text_range().end() {
38 could_intersect.push(r);
39 frontier += 1;
40 } else {
41 break;
42 }
43 }
44 let text = html_escape(&token.text());
45 let ranges = could_intersect
46 .iter()
47 .filter(|it| token.text_range().is_subrange(&it.range))
48 .collect::<Vec<_>>();
49 if ranges.is_empty() {
50 buf.push_str(&text);
51 } else {
52 let classes = ranges
53 .iter()
54 .map(|it| it.highlight.to_string().replace('.', " "))
55 .collect::<Vec<_>>()
56 .join(" ");
57 let binding_hash = ranges.first().and_then(|x| x.binding_hash);
58 let color = match (rainbow, binding_hash) {
59 (true, Some(hash)) => format!(
60 " data-binding-hash=\"{}\" style=\"color: {};\"",
61 hash,
62 rainbowify(hash)
63 ),
64 _ => "".into(),
65 };
66 buf.push_str(&format!("<span class=\"{}\"{}>{}</span>", classes, color, text));
67 }
68 }
69 buf.push_str("</code></pre>");
70 buf
71}
72
73//FIXME: like, real html escaping
74fn html_escape(text: &str) -> String {
75 text.replace("<", "&lt;").replace(">", "&gt;")
76}
77
78const STYLE: &str = "
79<style>
80body { margin: 0; }
81pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
82
83.comment { color: #7F9F7F; }
84.string { color: #CC9393; }
85.field { color: #94BFF3; }
86.function { color: #93E0E3; }
87.parameter { color: #94BFF3; }
88.text { color: #DCDCCC; }
89.type { color: #7CB8BB; }
90.type.builtin { color: #8CD0D3; }
91.type.param { color: #20999D; }
92.attribute { color: #94BFF3; }
93.literal { color: #BFEBBF; }
94.literal.numeric { color: #6A8759; }
95.macro { color: #94BFF3; }
96.module { color: #AFD8AF; }
97.variable { color: #DCDCCC; }
98.variable.mut { color: #DCDCCC; text-decoration: underline; }
99
100.keyword { color: #F0DFAF; }
101.keyword.unsafe { color: #DFAF8F; }
102.keyword.control { color: #F0DFAF; font-weight: bold; }
103</style>
104";
diff --git a/crates/ra_ide/src/syntax_highlighting/tags.rs b/crates/ra_ide/src/syntax_highlighting/tags.rs
new file mode 100644
index 000000000..383c74c98
--- /dev/null
+++ b/crates/ra_ide/src/syntax_highlighting/tags.rs
@@ -0,0 +1,163 @@
1//! Defines token tags we use for syntax highlighting.
2//! A tag is not unlike a CSS class.
3
4use std::{fmt, ops};
5
6#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
7pub struct Highlight {
8 pub tag: HighlightTag,
9 pub modifiers: HighlightModifiers,
10}
11
12#[derive(Default, Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
13pub struct HighlightModifiers(u32);
14
15#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
16pub enum HighlightTag {
17 Field,
18 Function,
19 Module,
20 Constant,
21 Macro,
22 Variable,
23
24 Type,
25 TypeSelf,
26 TypeParam,
27 TypeLifetime,
28
29 LiteralByte,
30 LiteralNumeric,
31 LiteralChar,
32
33 Comment,
34 LiteralString,
35 Attribute,
36
37 Keyword,
38}
39
40#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
41#[repr(u8)]
42pub enum HighlightModifier {
43 Mutable = 0,
44 Unsafe,
45 /// Used with keywords like `if` and `break`.
46 Control,
47 Builtin,
48}
49
50impl HighlightTag {
51 fn as_str(self) -> &'static str {
52 match self {
53 HighlightTag::Field => "field",
54 HighlightTag::Function => "function",
55 HighlightTag::Module => "module",
56 HighlightTag::Constant => "constant",
57 HighlightTag::Macro => "macro",
58 HighlightTag::Variable => "variable",
59 HighlightTag::Type => "type",
60 HighlightTag::TypeSelf => "type.self",
61 HighlightTag::TypeParam => "type.param",
62 HighlightTag::TypeLifetime => "type.lifetime",
63 HighlightTag::LiteralByte => "literal.byte",
64 HighlightTag::LiteralNumeric => "literal.numeric",
65 HighlightTag::LiteralChar => "literal.char",
66 HighlightTag::Comment => "comment",
67 HighlightTag::LiteralString => "string",
68 HighlightTag::Attribute => "attribute",
69 HighlightTag::Keyword => "keyword",
70 }
71 }
72}
73
74impl fmt::Display for HighlightTag {
75 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
76 fmt::Display::fmt(self.as_str(), f)
77 }
78}
79
80impl HighlightModifier {
81 const ALL: &'static [HighlightModifier] = &[
82 HighlightModifier::Mutable,
83 HighlightModifier::Unsafe,
84 HighlightModifier::Control,
85 HighlightModifier::Builtin,
86 ];
87
88 fn as_str(self) -> &'static str {
89 match self {
90 HighlightModifier::Mutable => "mutable",
91 HighlightModifier::Unsafe => "unsafe",
92 HighlightModifier::Control => "control",
93 HighlightModifier::Builtin => "builtin",
94 }
95 }
96
97 fn mask(self) -> u32 {
98 1 << (self as u32)
99 }
100}
101
102impl fmt::Display for HighlightModifier {
103 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
104 fmt::Display::fmt(self.as_str(), f)
105 }
106}
107
108impl fmt::Display for Highlight {
109 fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
110 write!(f, "{}", self.tag)?;
111 for modifier in self.modifiers.iter() {
112 write!(f, ".{}", modifier)?
113 }
114 Ok(())
115 }
116}
117
118impl From<HighlightTag> for Highlight {
119 fn from(tag: HighlightTag) -> Highlight {
120 Highlight::new(tag)
121 }
122}
123
124impl Highlight {
125 pub(crate) fn new(tag: HighlightTag) -> Highlight {
126 Highlight { tag, modifiers: HighlightModifiers::default() }
127 }
128}
129
130impl ops::BitOr<HighlightModifier> for HighlightTag {
131 type Output = Highlight;
132
133 fn bitor(self, rhs: HighlightModifier) -> Highlight {
134 Highlight::new(self) | rhs
135 }
136}
137
138impl ops::BitOrAssign<HighlightModifier> for HighlightModifiers {
139 fn bitor_assign(&mut self, rhs: HighlightModifier) {
140 self.0 |= rhs.mask();
141 }
142}
143
144impl ops::BitOrAssign<HighlightModifier> for Highlight {
145 fn bitor_assign(&mut self, rhs: HighlightModifier) {
146 self.modifiers |= rhs;
147 }
148}
149
150impl ops::BitOr<HighlightModifier> for Highlight {
151 type Output = Highlight;
152
153 fn bitor(mut self, rhs: HighlightModifier) -> Highlight {
154 self |= rhs;
155 self
156 }
157}
158
159impl HighlightModifiers {
160 pub fn iter(self) -> impl Iterator<Item = HighlightModifier> {
161 HighlightModifier::ALL.iter().copied().filter(move |it| self.0 & it.mask() == it.mask())
162 }
163}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 01:43:16 +0000