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authorWilco Kusee <[email protected]>2019-03-23 16:34:49 +0000
committerWilco Kusee <[email protected]>2019-03-23 16:34:49 +0000
commita3711e08dc4e393957dff136218c47d8b77da14f (patch)
tree862ad28652de70aac75cf6e619850ae013500694 /crates/ra_ide_api
parenta656b891fba4b89775adbc93114a20c99afe5f36 (diff)
Move highlighting and matching_brace
Diffstat (limited to 'crates/ra_ide_api')
-rw-r--r--crates/ra_ide_api/src/diagnostics.rs7
-rw-r--r--crates/ra_ide_api/src/lib.rs9
-rw-r--r--crates/ra_ide_api/src/matching_brace.rs45
-rw-r--r--crates/ra_ide_api/src/snapshots/tests__highlighting.snap34
-rw-r--r--crates/ra_ide_api/src/syntax_highlighting.rs81
5 files changed, 165 insertions, 11 deletions
diff --git a/crates/ra_ide_api/src/diagnostics.rs b/crates/ra_ide_api/src/diagnostics.rs
index 069092528..aabb614b9 100644
--- a/crates/ra_ide_api/src/diagnostics.rs
+++ b/crates/ra_ide_api/src/diagnostics.rs
@@ -1,6 +1,5 @@
1use itertools::Itertools; 1use itertools::Itertools;
2use hir::{Problem, source_binder}; 2use hir::{Problem, source_binder};
3use ra_ide_api_light::Severity;
4use ra_db::SourceDatabase; 3use ra_db::SourceDatabase;
5use ra_syntax::{ 4use ra_syntax::{
6 Location, SourceFile, SyntaxKind, TextRange, SyntaxNode, 5 Location, SourceFile, SyntaxKind, TextRange, SyntaxNode,
@@ -11,6 +10,12 @@ use ra_text_edit::{TextEdit, TextEditBuilder};
11 10
12use crate::{Diagnostic, FileId, FileSystemEdit, SourceChange, SourceFileEdit, db::RootDatabase}; 11use crate::{Diagnostic, FileId, FileSystemEdit, SourceChange, SourceFileEdit, db::RootDatabase};
13 12
13#[derive(Debug, Copy, Clone)]
14pub enum Severity {
15 Error,
16 WeakWarning,
17}
18
14pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic> { 19pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic> {
15 let source_file = db.parse(file_id); 20 let source_file = db.parse(file_id);
16 let mut res = Vec::new(); 21 let mut res = Vec::new();
diff --git a/crates/ra_ide_api/src/lib.rs b/crates/ra_ide_api/src/lib.rs
index 0e7b47e3c..99f18b6b8 100644
--- a/crates/ra_ide_api/src/lib.rs
+++ b/crates/ra_ide_api/src/lib.rs
@@ -38,6 +38,7 @@ mod folding_ranges;
38mod line_index_utils; 38mod line_index_utils;
39mod join_lines; 39mod join_lines;
40mod typing; 40mod typing;
41mod matching_brace;
41 42
42#[cfg(test)] 43#[cfg(test)]
43mod marks; 44mod marks;
@@ -70,10 +71,10 @@ pub use crate::{
70 line_index::{LineIndex, LineCol}, 71 line_index::{LineIndex, LineCol},
71 line_index_utils::translate_offset_with_edit, 72 line_index_utils::translate_offset_with_edit,
72 folding_ranges::{Fold, FoldKind}, 73 folding_ranges::{Fold, FoldKind},
74 syntax_highlighting::HighlightedRange,
75 diagnostics::Severity,
73}; 76};
74pub use ra_ide_api_light::{ 77pub use ra_ide_api_light::StructureNode;
75 HighlightedRange, Severity, StructureNode,
76};
77pub use ra_db::{ 78pub use ra_db::{
78 Canceled, CrateGraph, CrateId, FileId, FilePosition, FileRange, SourceRootId, 79 Canceled, CrateGraph, CrateId, FileId, FilePosition, FileRange, SourceRootId,
79 Edition 80 Edition
@@ -267,7 +268,7 @@ impl Analysis {
267 /// supported). 268 /// supported).
268 pub fn matching_brace(&self, position: FilePosition) -> Option<TextUnit> { 269 pub fn matching_brace(&self, position: FilePosition) -> Option<TextUnit> {
269 let file = self.db.parse(position.file_id); 270 let file = self.db.parse(position.file_id);
270 ra_ide_api_light::matching_brace(&file, position.offset) 271 matching_brace::matching_brace(&file, position.offset)
271 } 272 }
272 273
273 /// Returns a syntax tree represented as `String`, for debug purposes. 274 /// Returns a syntax tree represented as `String`, for debug purposes.
diff --git a/crates/ra_ide_api/src/matching_brace.rs b/crates/ra_ide_api/src/matching_brace.rs
new file mode 100644
index 000000000..d1405f14f
--- /dev/null
+++ b/crates/ra_ide_api/src/matching_brace.rs
@@ -0,0 +1,45 @@
1use ra_syntax::{
2 SourceFile, TextUnit,
3 algo::find_leaf_at_offset,
4 SyntaxKind::{self, *},
5 ast::AstNode,
6};
7
8pub fn matching_brace(file: &SourceFile, offset: TextUnit) -> Option<TextUnit> {
9 const BRACES: &[SyntaxKind] =
10 &[L_CURLY, R_CURLY, L_BRACK, R_BRACK, L_PAREN, R_PAREN, L_ANGLE, R_ANGLE];
11 let (brace_node, brace_idx) = find_leaf_at_offset(file.syntax(), offset)
12 .filter_map(|node| {
13 let idx = BRACES.iter().position(|&brace| brace == node.kind())?;
14 Some((node, idx))
15 })
16 .next()?;
17 let parent = brace_node.parent()?;
18 let matching_kind = BRACES[brace_idx ^ 1];
19 let matching_node = parent.children().find(|node| node.kind() == matching_kind)?;
20 Some(matching_node.range().start())
21}
22
23#[cfg(test)]
24mod tests {
25 use test_utils::{add_cursor, assert_eq_text, extract_offset};
26
27 use super::*;
28
29 #[test]
30 fn test_matching_brace() {
31 fn do_check(before: &str, after: &str) {
32 let (pos, before) = extract_offset(before);
33 let file = SourceFile::parse(&before);
34 let new_pos = match matching_brace(&file, pos) {
35 None => pos,
36 Some(pos) => pos,
37 };
38 let actual = add_cursor(&before, new_pos);
39 assert_eq_text!(after, &actual);
40 }
41
42 do_check("struct Foo { a: i32, }<|>", "struct Foo <|>{ a: i32, }");
43 }
44
45}
diff --git a/crates/ra_ide_api/src/snapshots/tests__highlighting.snap b/crates/ra_ide_api/src/snapshots/tests__highlighting.snap
new file mode 100644
index 000000000..72029e0ed
--- /dev/null
+++ b/crates/ra_ide_api/src/snapshots/tests__highlighting.snap
@@ -0,0 +1,34 @@
1---
2created: "2019-03-23T16:20:31.394314144Z"
3creator: [email protected]
4source: crates/ra_ide_api/src/syntax_highlighting.rs
5expression: result
6---
7Ok(
8 [
9 HighlightedRange {
10 range: [1; 11),
11 tag: "comment"
12 },
13 HighlightedRange {
14 range: [12; 14),
15 tag: "keyword"
16 },
17 HighlightedRange {
18 range: [15; 19),
19 tag: "function"
20 },
21 HighlightedRange {
22 range: [29; 37),
23 tag: "macro"
24 },
25 HighlightedRange {
26 range: [38; 50),
27 tag: "string"
28 },
29 HighlightedRange {
30 range: [52; 54),
31 tag: "literal"
32 }
33 ]
34)
diff --git a/crates/ra_ide_api/src/syntax_highlighting.rs b/crates/ra_ide_api/src/syntax_highlighting.rs
index fdd87bcff..a0c5e78ad 100644
--- a/crates/ra_ide_api/src/syntax_highlighting.rs
+++ b/crates/ra_ide_api/src/syntax_highlighting.rs
@@ -1,12 +1,81 @@
1use ra_syntax::AstNode; 1use rustc_hash::FxHashSet;
2
3use ra_syntax::{ast, AstNode, TextRange, Direction, SyntaxKind::*};
2use ra_db::SourceDatabase; 4use ra_db::SourceDatabase;
3 5
4use crate::{ 6use crate::{FileId, db::RootDatabase};
5 FileId, HighlightedRange, 7
6 db::RootDatabase, 8#[derive(Debug)]
7}; 9pub struct HighlightedRange {
10 pub range: TextRange,
11 pub tag: &'static str,
12}
8 13
9pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Vec<HighlightedRange> { 14pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Vec<HighlightedRange> {
10 let source_file = db.parse(file_id); 15 let source_file = db.parse(file_id);
11 ra_ide_api_light::highlight(source_file.syntax()) 16
17 // Visited nodes to handle highlighting priorities
18 let mut highlighted = FxHashSet::default();
19 let mut res = Vec::new();
20 for node in source_file.syntax().descendants() {
21 if highlighted.contains(&node) {
22 continue;
23 }
24 let tag = match node.kind() {
25 COMMENT => "comment",
26 STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => "string",
27 ATTR => "attribute",
28 NAME_REF => "text",
29 NAME => "function",
30 INT_NUMBER | FLOAT_NUMBER | CHAR | BYTE => "literal",
31 LIFETIME => "parameter",
32 k if k.is_keyword() => "keyword",
33 _ => {
34 if let Some(macro_call) = ast::MacroCall::cast(node) {
35 if let Some(path) = macro_call.path() {
36 if let Some(segment) = path.segment() {
37 if let Some(name_ref) = segment.name_ref() {
38 highlighted.insert(name_ref.syntax());
39 let range_start = name_ref.syntax().range().start();
40 let mut range_end = name_ref.syntax().range().end();
41 for sibling in path.syntax().siblings(Direction::Next) {
42 match sibling.kind() {
43 EXCL | IDENT => range_end = sibling.range().end(),
44 _ => (),
45 }
46 }
47 res.push(HighlightedRange {
48 range: TextRange::from_to(range_start, range_end),
49 tag: "macro",
50 })
51 }
52 }
53 }
54 }
55 continue;
56 }
57 };
58 res.push(HighlightedRange { range: node.range(), tag })
59 }
60 res
61}
62
63#[cfg(test)]
64mod tests {
65 use insta::assert_debug_snapshot_matches;
66
67 use crate::mock_analysis::single_file;
68
69 #[test]
70 fn test_highlighting() {
71 let (analysis, file_id) = single_file(
72 r#"
73// comment
74fn main() {}
75 println!("Hello, {}!", 92);
76"#,
77 );
78 let result = analysis.highlight(file_id);
79 assert_debug_snapshot_matches!("highlighting", result);
80 }
12} 81}