5 files changed, 97 insertions, 96 deletions

diff --git a/crates/ide/src/display/navigation_target.rs b/crates/ide/src/display/navigation_target.rs
index cbdd4ecc2..7d0514105 100644
--- a/crates/ide/src/display/navigation_target.rs
+++ b/crates/ide/src/display/navigation_target.rs
@@ -18,13 +18,14 @@ use crate::FileSymbol;
 
 use super::short_label::ShortLabel;
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub enum SymbolKind {
     Module,
     Impl,
     Field,
     TypeParam,
     LifetimeParam,
+    ValueParam,
     SelfParam,
     Local,
     Function,
@@ -406,10 +407,11 @@ impl ToNav for hir::Local {
             Some(it) => it.to_string().into(),
             None => "".into(),
         };
+        let kind = if self.is_param(db) { SymbolKind::ValueParam } else { SymbolKind::Local };
         NavigationTarget {
             file_id: full_range.file_id,
             name,
-            kind: Some(SymbolKind::Local),
+            kind: Some(kind),
             full_range: full_range.range,
             focus_range: None,
             container_name: None,
diff --git a/crates/ide/src/references.rs b/crates/ide/src/references.rs
index 8c00a7105..18ea19305 100644
--- a/crates/ide/src/references.rs
+++ b/crates/ide/src/references.rs
@@ -546,7 +546,7 @@ fn bar() {
 fn foo(i : u32) -> u32 { i<|> }
 "#,
             expect![[r#"
-                i Local FileId(0) 7..8 Other
+                i ValueParam FileId(0) 7..8 Other
 
                 FileId(0) 25..26 Other Read
             "#]],
@@ -560,7 +560,7 @@ fn foo(i : u32) -> u32 { i<|> }
 fn foo(i<|> : u32) -> u32 { i }
 "#,
             expect![[r#"
-                i Local FileId(0) 7..8 Other
+                i ValueParam FileId(0) 7..8 Other
 
                 FileId(0) 25..26 Other Read
             "#]],
diff --git a/crates/ide/src/syntax_highlighting.rs b/crates/ide/src/syntax_highlighting.rs
index 488969f1a..7f98aa316 100644
--- a/crates/ide/src/syntax_highlighting.rs
+++ b/crates/ide/src/syntax_highlighting.rs
@@ -23,7 +23,7 @@ use crate::{
     syntax_highlighting::{
         format::FormatStringHighlighter, macro_rules::MacroRulesHighlighter, tags::Highlight,
     },
-    FileId, HighlightModifier, HighlightTag,
+    FileId, HighlightModifier, HighlightTag, SymbolKind,
 };
 
 pub(crate) use html::highlight_as_html;
@@ -103,7 +103,7 @@ pub(crate) fn highlight(
                 if let Some(range) = macro_call_range(&mc) {
                     stack.add(HighlightedRange {
                         range,
-                        highlight: HighlightTag::Macro.into(),
+                        highlight: HighlightTag::Symbol(SymbolKind::Macro).into(),
                         binding_hash: None,
                     });
                 }
@@ -470,13 +470,13 @@ fn highlight_element(
             };
 
             match name_kind {
-                Some(NameClass::ExternCrate(_)) => HighlightTag::Module.into(),
+                Some(NameClass::ExternCrate(_)) => HighlightTag::Symbol(SymbolKind::Module).into(),
                 Some(NameClass::Definition(def)) => {
                     highlight_def(db, def) | HighlightModifier::Definition
                 }
                 Some(NameClass::ConstReference(def)) => highlight_def(db, def),
                 Some(NameClass::PatFieldShorthand { field_ref, .. }) => {
-                    let mut h = HighlightTag::Field.into();
+                    let mut h = HighlightTag::Symbol(SymbolKind::Field).into();
                     if let Definition::Field(field) = field_ref {
                         if let VariantDef::Union(_) = field.parent_def(db) {
                             h |= HighlightModifier::Unsafe;
@@ -493,14 +493,16 @@ fn highlight_element(
         NAME_REF if element.ancestors().any(|it| it.kind() == ATTR) => {
             // even though we track whether we are in an attribute or not we still need this special case
             // as otherwise we would emit unresolved references for name refs inside attributes
-            Highlight::from(HighlightTag::Function)
+            Highlight::from(HighlightTag::Symbol(SymbolKind::Function))
         }
         NAME_REF => {
             let name_ref = element.into_node().and_then(ast::NameRef::cast).unwrap();
             highlight_func_by_name_ref(sema, &name_ref).unwrap_or_else(|| {
                 match NameRefClass::classify(sema, &name_ref) {
                     Some(name_kind) => match name_kind {
-                        NameRefClass::ExternCrate(_) => HighlightTag::Module.into(),
+                        NameRefClass::ExternCrate(_) => {
+                            HighlightTag::Symbol(SymbolKind::Module).into()
+                        }
                         NameRefClass::Definition(def) => {
                             if let Definition::Local(local) = &def {
                                 if let Some(name) = local.name(db) {
@@ -530,7 +532,9 @@ fn highlight_element(
 
                             h
                         }
-                        NameRefClass::FieldShorthand { .. } => HighlightTag::Field.into(),
+                        NameRefClass::FieldShorthand { .. } => {
+                            HighlightTag::Symbol(SymbolKind::Field).into()
+                        }
                     },
                     None if syntactic_name_ref_highlighting => {
                         highlight_name_ref_by_syntax(name_ref, sema)
@@ -556,7 +560,7 @@ fn highlight_element(
         CHAR => HighlightTag::CharLiteral.into(),
         QUESTION => Highlight::new(HighlightTag::Operator) | HighlightModifier::ControlFlow,
         LIFETIME => {
-            let h = Highlight::new(HighlightTag::Lifetime);
+            let h = Highlight::new(HighlightTag::Symbol(SymbolKind::LifetimeParam));
             match element.parent().map(|it| it.kind()) {
                 Some(LIFETIME_PARAM) | Some(LABEL) => h | HighlightModifier::Definition,
                 _ => h,
@@ -580,7 +584,7 @@ fn highlight_element(
                 HighlightTag::Operator.into()
             }
             T![!] if element.parent().and_then(ast::MacroCall::cast).is_some() => {
-                HighlightTag::Macro.into()
+                HighlightTag::Symbol(SymbolKind::Macro).into()
             }
             T![!] if element.parent().and_then(ast::NeverType::cast).is_some() => {
                 HighlightTag::BuiltinType.into()
@@ -659,7 +663,7 @@ fn highlight_element(
                         .and_then(SyntaxNode::parent)
                         .and_then(ast::Path::cast)
                         .and_then(|p| sema.resolve_path(&p));
-                    let mut h = HighlightTag::SelfKeyword.into();
+                    let mut h = HighlightTag::Symbol(SymbolKind::SelfParam).into();
                     if self_param_is_mut
                         || matches!(self_path,
                             Some(hir::PathResolution::Local(local))
@@ -756,10 +760,10 @@ fn highlight_method_call(
 
 fn highlight_def(db: &RootDatabase, def: Definition) -> Highlight {
     match def {
-        Definition::Macro(_) => HighlightTag::Macro,
-        Definition::Field(_) => HighlightTag::Field,
+        Definition::Macro(_) => HighlightTag::Symbol(SymbolKind::Macro),
+        Definition::Field(_) => HighlightTag::Symbol(SymbolKind::Field),
         Definition::ModuleDef(def) => match def {
-            hir::ModuleDef::Module(_) => HighlightTag::Module,
+            hir::ModuleDef::Module(_) => HighlightTag::Symbol(SymbolKind::Module),
             hir::ModuleDef::Function(func) => {
                 let mut h = if func.as_assoc_item(db).is_some() {
                     if func.self_param(db).is_none() {
@@ -768,23 +772,23 @@ fn highlight_def(db: &RootDatabase, def: Definition) -> Highlight {
                         HighlightTag::Method.into()
                     }
                 } else {
-                    HighlightTag::Function.into()
+                    HighlightTag::Symbol(SymbolKind::Function).into()
                 };
                 if func.is_unsafe(db) {
                     h |= HighlightModifier::Unsafe;
                 }
                 return h;
             }
-            hir::ModuleDef::Adt(hir::Adt::Struct(_)) => HighlightTag::Struct,
-            hir::ModuleDef::Adt(hir::Adt::Enum(_)) => HighlightTag::Enum,
-            hir::ModuleDef::Adt(hir::Adt::Union(_)) => HighlightTag::Union,
-            hir::ModuleDef::EnumVariant(_) => HighlightTag::EnumVariant,
-            hir::ModuleDef::Const(_) => HighlightTag::Constant,
-            hir::ModuleDef::Trait(_) => HighlightTag::Trait,
-            hir::ModuleDef::TypeAlias(_) => HighlightTag::TypeAlias,
+            hir::ModuleDef::Adt(hir::Adt::Struct(_)) => HighlightTag::Symbol(SymbolKind::Struct),
+            hir::ModuleDef::Adt(hir::Adt::Enum(_)) => HighlightTag::Symbol(SymbolKind::Enum),
+            hir::ModuleDef::Adt(hir::Adt::Union(_)) => HighlightTag::Symbol(SymbolKind::Union),
+            hir::ModuleDef::EnumVariant(_) => HighlightTag::Symbol(SymbolKind::Variant),
+            hir::ModuleDef::Const(_) => HighlightTag::Symbol(SymbolKind::Const),
+            hir::ModuleDef::Trait(_) => HighlightTag::Symbol(SymbolKind::Trait),
+            hir::ModuleDef::TypeAlias(_) => HighlightTag::Symbol(SymbolKind::TypeAlias),
             hir::ModuleDef::BuiltinType(_) => HighlightTag::BuiltinType,
             hir::ModuleDef::Static(s) => {
-                let mut h = Highlight::new(HighlightTag::Static);
+                let mut h = Highlight::new(HighlightTag::Symbol(SymbolKind::Static));
                 if s.is_mut(db) {
                     h |= HighlightModifier::Mutable;
                     h |= HighlightModifier::Unsafe;
@@ -792,11 +796,14 @@ fn highlight_def(db: &RootDatabase, def: Definition) -> Highlight {
                 return h;
             }
         },
-        Definition::SelfType(_) => HighlightTag::SelfType,
-        Definition::TypeParam(_) => HighlightTag::TypeParam,
+        Definition::SelfType(_) => HighlightTag::Symbol(SymbolKind::Impl),
+        Definition::TypeParam(_) => HighlightTag::Symbol(SymbolKind::TypeParam),
         Definition::Local(local) => {
-            let tag =
-                if local.is_param(db) { HighlightTag::ValueParam } else { HighlightTag::Local };
+            let tag = if local.is_param(db) {
+                HighlightTag::Symbol(SymbolKind::ValueParam)
+            } else {
+                HighlightTag::Symbol(SymbolKind::Local)
+            };
             let mut h = Highlight::new(tag);
             if local.is_mut(db) || local.ty(db).is_mutable_reference() {
                 h |= HighlightModifier::Mutable;
@@ -806,7 +813,7 @@ fn highlight_def(db: &RootDatabase, def: Definition) -> Highlight {
             }
             return h;
         }
-        Definition::LifetimeParam(_) => HighlightTag::Lifetime,
+        Definition::LifetimeParam(_) => HighlightTag::Symbol(SymbolKind::LifetimeParam),
     }
     .into()
 }
@@ -820,19 +827,19 @@ fn highlight_name_by_syntax(name: ast::Name) -> Highlight {
     };
 
     let tag = match parent.kind() {
-        STRUCT => HighlightTag::Struct,
-        ENUM => HighlightTag::Enum,
-        UNION => HighlightTag::Union,
-        TRAIT => HighlightTag::Trait,
-        TYPE_ALIAS => HighlightTag::TypeAlias,
-        TYPE_PARAM => HighlightTag::TypeParam,
-        RECORD_FIELD => HighlightTag::Field,
-        MODULE => HighlightTag::Module,
-        FN => HighlightTag::Function,
-        CONST => HighlightTag::Constant,
-        STATIC => HighlightTag::Static,
-        VARIANT => HighlightTag::EnumVariant,
-        IDENT_PAT => HighlightTag::Local,
+        STRUCT => HighlightTag::Symbol(SymbolKind::Struct),
+        ENUM => HighlightTag::Symbol(SymbolKind::Enum),
+        VARIANT => HighlightTag::Symbol(SymbolKind::Variant),
+        UNION => HighlightTag::Symbol(SymbolKind::Union),
+        TRAIT => HighlightTag::Symbol(SymbolKind::Trait),
+        TYPE_ALIAS => HighlightTag::Symbol(SymbolKind::TypeAlias),
+        TYPE_PARAM => HighlightTag::Symbol(SymbolKind::TypeParam),
+        RECORD_FIELD => HighlightTag::Symbol(SymbolKind::Field),
+        MODULE => HighlightTag::Symbol(SymbolKind::Module),
+        FN => HighlightTag::Symbol(SymbolKind::Function),
+        CONST => HighlightTag::Symbol(SymbolKind::Const),
+        STATIC => HighlightTag::Symbol(SymbolKind::Static),
+        IDENT_PAT => HighlightTag::Symbol(SymbolKind::Local),
         _ => default,
     };
 
@@ -851,10 +858,10 @@ fn highlight_name_ref_by_syntax(name: ast::NameRef, sema: &Semantics<RootDatabas
         METHOD_CALL_EXPR => {
             return ast::MethodCallExpr::cast(parent)
                 .and_then(|method_call| highlight_method_call(sema, &method_call))
-                .unwrap_or_else(|| HighlightTag::Function.into());
+                .unwrap_or_else(|| HighlightTag::Symbol(SymbolKind::Function).into());
         }
         FIELD_EXPR => {
-            let h = HighlightTag::Field;
+            let h = HighlightTag::Symbol(SymbolKind::Field);
             let is_union = ast::FieldExpr::cast(parent)
                 .and_then(|field_expr| {
                     let field = sema.resolve_field(&field_expr)?;
@@ -881,9 +888,9 @@ fn highlight_name_ref_by_syntax(name: ast::NameRef, sema: &Semantics<RootDatabas
                 _ => {
                     // within path, decide whether it is module or adt by checking for uppercase name
                     return if name.text().chars().next().unwrap_or_default().is_uppercase() {
-                        HighlightTag::Struct
+                        HighlightTag::Symbol(SymbolKind::Struct)
                     } else {
-                        HighlightTag::Module
+                        HighlightTag::Symbol(SymbolKind::Module)
                     }
                     .into();
                 }
@@ -894,11 +901,11 @@ fn highlight_name_ref_by_syntax(name: ast::NameRef, sema: &Semantics<RootDatabas
             };
 
             match parent.kind() {
-                CALL_EXPR => HighlightTag::Function.into(),
+                CALL_EXPR => HighlightTag::Symbol(SymbolKind::Function).into(),
                 _ => if name.text().chars().next().unwrap_or_default().is_uppercase() {
-                    HighlightTag::Struct.into()
+                    HighlightTag::Symbol(SymbolKind::Struct)
                 } else {
-                    HighlightTag::Constant
+                    HighlightTag::Symbol(SymbolKind::Const)
                 }
                 .into(),
             }
diff --git a/crates/ide/src/syntax_highlighting/format.rs b/crates/ide/src/syntax_highlighting/format.rs
index 42f27df5d..26416022b 100644
--- a/crates/ide/src/syntax_highlighting/format.rs
+++ b/crates/ide/src/syntax_highlighting/format.rs
@@ -4,7 +4,9 @@ use syntax::{
     AstNode, AstToken, SyntaxElement, SyntaxKind, SyntaxNode, TextRange,
 };
 
-use crate::{syntax_highlighting::HighlightedRangeStack, HighlightTag, HighlightedRange};
+use crate::{
+    syntax_highlighting::HighlightedRangeStack, HighlightTag, HighlightedRange, SymbolKind,
+};
 
 #[derive(Default)]
 pub(super) struct FormatStringHighlighter {
@@ -71,6 +73,6 @@ fn highlight_format_specifier(kind: FormatSpecifier) -> Option<HighlightTag> {
         | FormatSpecifier::Asterisk
         | FormatSpecifier::QuestionMark => HighlightTag::FormatSpecifier,
         FormatSpecifier::Integer | FormatSpecifier::Zero => HighlightTag::NumericLiteral,
-        FormatSpecifier::Identifier => HighlightTag::Local,
+        FormatSpecifier::Identifier => HighlightTag::Symbol(SymbolKind::Local),
     })
 }
diff --git a/crates/ide/src/syntax_highlighting/tags.rs b/crates/ide/src/syntax_highlighting/tags.rs
index ffd9588b8..e0117a6b2 100644
--- a/crates/ide/src/syntax_highlighting/tags.rs
+++ b/crates/ide/src/syntax_highlighting/tags.rs
@@ -3,6 +3,8 @@
 
 use std::{fmt, ops};
 
+use crate::SymbolKind;
+
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub struct Highlight {
     pub tag: HighlightTag,
@@ -14,40 +16,26 @@ pub struct HighlightModifiers(u32);
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
 pub enum HighlightTag {
-    Attribute,
+    Symbol(SymbolKind),
+
     BoolLiteral,
     BuiltinType,
     ByteLiteral,
     CharLiteral,
+    NumericLiteral,
+    StringLiteral,
+    Attribute,
     Comment,
-    Constant,
-    Enum,
-    EnumVariant,
     EscapeSequence,
-    Field,
-    Function,
-    Generic,
+    FormatSpecifier,
     Keyword,
-    Lifetime,
-    Macro,
-    Method,
-    Module,
-    NumericLiteral,
     Punctuation,
-    SelfKeyword,
-    SelfType,
-    Static,
-    StringLiteral,
-    Struct,
-    Trait,
-    TypeAlias,
-    TypeParam,
-    Union,
-    ValueParam,
-    Local,
-    UnresolvedReference,
-    FormatSpecifier,
     Operator,
+    UnresolvedReference,
+
+    // FIXME: this two are random and don't fit with the others
+    Method,
+    Generic,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
@@ -73,39 +61,41 @@ pub enum HighlightModifier {
 impl HighlightTag {
     fn as_str(self) -> &'static str {
         match self {
+            HighlightTag::Symbol(symbol) => match symbol {
+                SymbolKind::Const => "constant",
+                SymbolKind::Static => "static",
+                SymbolKind::Enum => "enum",
+                SymbolKind::Variant => "enum_variant",
+                SymbolKind::Struct => "struct",
+                SymbolKind::Union => "union",
+                SymbolKind::Field => "field",
+                SymbolKind::Module => "module",
+                SymbolKind::Trait => "trait",
+                SymbolKind::Function => "function",
+                SymbolKind::TypeAlias => "type_alias",
+                SymbolKind::TypeParam => "type_param",
+                SymbolKind::LifetimeParam => "lifetime",
+                SymbolKind::Macro => "macro",
+                SymbolKind::Local => "variable",
+                SymbolKind::ValueParam => "value_param",
+                SymbolKind::SelfParam => "self_keyword",
+                SymbolKind::Impl => "self_type",
+            },
             HighlightTag::Attribute => "attribute",
             HighlightTag::BoolLiteral => "bool_literal",
             HighlightTag::BuiltinType => "builtin_type",
             HighlightTag::ByteLiteral => "byte_literal",
             HighlightTag::CharLiteral => "char_literal",
             HighlightTag::Comment => "comment",
-            HighlightTag::Constant => "constant",
-            HighlightTag::Enum => "enum",
-            HighlightTag::EnumVariant => "enum_variant",
             HighlightTag::EscapeSequence => "escape_sequence",
-            HighlightTag::Field => "field",
             HighlightTag::FormatSpecifier => "format_specifier",
-            HighlightTag::Function => "function",
             HighlightTag::Generic => "generic",
             HighlightTag::Keyword => "keyword",
-            HighlightTag::Lifetime => "lifetime",
             HighlightTag::Punctuation => "punctuation",
-            HighlightTag::Macro => "macro",
             HighlightTag::Method => "method",
-            HighlightTag::Module => "module",
             HighlightTag::NumericLiteral => "numeric_literal",
             HighlightTag::Operator => "operator",
-            HighlightTag::SelfKeyword => "self_keyword",
-            HighlightTag::SelfType => "self_type",
-            HighlightTag::Static => "static",
             HighlightTag::StringLiteral => "string_literal",
-            HighlightTag::Struct => "struct",
-            HighlightTag::Trait => "trait",
-            HighlightTag::TypeAlias => "type_alias",
-            HighlightTag::TypeParam => "type_param",
-            HighlightTag::Union => "union",
-            HighlightTag::ValueParam => "value_param",
-            HighlightTag::Local => "variable",
             HighlightTag::UnresolvedReference => "unresolved_reference",
         }
     }