From f7db49bfc6dd77471865c8591fdf7d5d00992830 Mon Sep 17 00:00:00 2001 From: Aleksey Kladov Date: Wed, 26 Feb 2020 19:39:32 +0100 Subject: Better highlightign API --- crates/ra_ide/src/syntax_highlighting.rs | 107 +++++++++++++++++-------------- 1 file changed, 60 insertions(+), 47 deletions(-) (limited to 'crates/ra_ide/src/syntax_highlighting.rs') diff --git a/crates/ra_ide/src/syntax_highlighting.rs b/crates/ra_ide/src/syntax_highlighting.rs index d422930bf..18980dc20 100644 --- a/crates/ra_ide/src/syntax_highlighting.rs +++ b/crates/ra_ide/src/syntax_highlighting.rs @@ -1,6 +1,6 @@ //! FIXME: write short doc here -mod highlight_tag; +mod highlight; use hir::{Name, Semantics}; use ra_db::SourceDatabase; @@ -17,12 +17,12 @@ use rustc_hash::FxHashMap; use crate::{references::classify_name_ref, FileId}; -pub use highlight_tag::HighlightTag; +pub use highlight::{Highlight, HighlightModifier, HighlightModifiers, HighlightTag}; #[derive(Debug)] pub struct HighlightedRange { pub range: TextRange, - pub tag: HighlightTag, + pub highlight: Highlight, pub binding_hash: Option, } @@ -79,33 +79,33 @@ pub(crate) fn highlight( if let Some(range) = highlight_macro(node) { res.push(HighlightedRange { range, - tag: HighlightTag::MACRO, + highlight: HighlightTag::Macro.into(), binding_hash: None, }); } } _ if in_macro_call.is_some() => { if let Some(token) = node.as_token() { - if let Some((tag, binding_hash)) = highlight_token_tree( + if let Some((highlight, binding_hash)) = highlight_token_tree( &sema, &mut bindings_shadow_count, token.clone(), ) { res.push(HighlightedRange { range: node.text_range(), - tag, + highlight, binding_hash, }); } } } _ => { - if let Some((tag, binding_hash)) = + if let Some((highlight, binding_hash)) = highlight_node(&sema, &mut bindings_shadow_count, node.clone()) { res.push(HighlightedRange { range: node.text_range(), - tag, + highlight, binding_hash, }); } @@ -150,7 +150,7 @@ fn highlight_token_tree( sema: &Semantics, bindings_shadow_count: &mut FxHashMap, token: SyntaxToken, -) -> Option<(HighlightTag, Option)> { +) -> Option<(Highlight, Option)> { if token.parent().kind() != TOKEN_TREE { return None; } @@ -171,19 +171,21 @@ fn highlight_node( sema: &Semantics, bindings_shadow_count: &mut FxHashMap, node: SyntaxElement, -) -> Option<(HighlightTag, Option)> { +) -> Option<(Highlight, Option)> { let db = sema.db; let mut binding_hash = None; - let tag = match node.kind() { + let highlight: Highlight = match node.kind() { FN_DEF => { bindings_shadow_count.clear(); return None; } - COMMENT => HighlightTag::LITERAL_COMMENT, - STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => HighlightTag::LITERAL_STRING, - ATTR => HighlightTag::LITERAL_ATTRIBUTE, + COMMENT => HighlightTag::Comment.into(), + STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => HighlightTag::LiteralString.into(), + ATTR => HighlightTag::Attribute.into(), // Special-case field init shorthand - NAME_REF if node.parent().and_then(ast::RecordField::cast).is_some() => HighlightTag::FIELD, + NAME_REF if node.parent().and_then(ast::RecordField::cast).is_some() => { + HighlightTag::Field.into() + } NAME_REF if node.ancestors().any(|it| it.kind() == ATTR) => return None, NAME_REF => { let name_ref = node.as_node().cloned().and_then(ast::NameRef::cast).unwrap(); @@ -217,26 +219,30 @@ fn highlight_node( match name_kind { Some(name_kind) => highlight_name(db, name_kind), - None => name.syntax().parent().map_or(HighlightTag::FUNCTION, |x| match x.kind() { - STRUCT_DEF | ENUM_DEF | TRAIT_DEF | TYPE_ALIAS_DEF => HighlightTag::TYPE, - TYPE_PARAM => HighlightTag::TYPE_PARAM, - RECORD_FIELD_DEF => HighlightTag::FIELD, - _ => HighlightTag::FUNCTION, + None => name.syntax().parent().map_or(HighlightTag::Function.into(), |x| { + match x.kind() { + STRUCT_DEF | ENUM_DEF | TRAIT_DEF | TYPE_ALIAS_DEF => { + HighlightTag::Type.into() + } + TYPE_PARAM => HighlightTag::TypeParam.into(), + RECORD_FIELD_DEF => HighlightTag::Field.into(), + _ => HighlightTag::Function.into(), + } }), } } - INT_NUMBER | FLOAT_NUMBER => HighlightTag::LITERAL_NUMERIC, - BYTE => HighlightTag::LITERAL_BYTE, - CHAR => HighlightTag::LITERAL_CHAR, - LIFETIME => HighlightTag::TYPE_LIFETIME, - T![unsafe] => HighlightTag::KEYWORD_UNSAFE, - k if is_control_keyword(k) => HighlightTag::KEYWORD_CONTROL, - k if k.is_keyword() => HighlightTag::KEYWORD, + INT_NUMBER | FLOAT_NUMBER => HighlightTag::LiteralNumeric.into(), + BYTE => HighlightTag::LiteralByte.into(), + CHAR => HighlightTag::LiteralChar.into(), + LIFETIME => HighlightTag::TypeLifetime.into(), + T![unsafe] => HighlightTag::Keyword | HighlightModifier::Unsafe, + k if is_control_keyword(k) => HighlightTag::Keyword | HighlightModifier::Control, + k if k.is_keyword() => HighlightTag::Keyword.into(), _ => return None, }; - return Some((tag, binding_hash)); + return Some((highlight, binding_hash)); fn calc_binding_hash(name: &Name, shadow_count: u32) -> u64 { fn hash(x: T) -> u64 { @@ -293,7 +299,11 @@ pub(crate) fn highlight_as_html(db: &RootDatabase, file_id: FileId, rainbow: boo if ranges.is_empty() { buf.push_str(&text); } else { - let classes = ranges.iter().map(|x| x.tag.to_string()).collect::>().join(" "); + let classes = ranges + .iter() + .map(|it| it.highlight.to_string().replace('.', " ")) + .collect::>() + .join(" "); let binding_hash = ranges.first().and_then(|x| x.binding_hash); let color = match (rainbow, binding_hash) { (true, Some(hash)) => format!( @@ -310,29 +320,32 @@ pub(crate) fn highlight_as_html(db: &RootDatabase, file_id: FileId, rainbow: boo buf } -fn highlight_name(db: &RootDatabase, def: NameDefinition) -> HighlightTag { +fn highlight_name(db: &RootDatabase, def: NameDefinition) -> Highlight { match def { - NameDefinition::Macro(_) => HighlightTag::MACRO, - NameDefinition::StructField(_) => HighlightTag::FIELD, - NameDefinition::ModuleDef(hir::ModuleDef::Module(_)) => HighlightTag::MODULE, - NameDefinition::ModuleDef(hir::ModuleDef::Function(_)) => HighlightTag::FUNCTION, - NameDefinition::ModuleDef(hir::ModuleDef::Adt(_)) => HighlightTag::TYPE, - NameDefinition::ModuleDef(hir::ModuleDef::EnumVariant(_)) => HighlightTag::CONSTANT, - NameDefinition::ModuleDef(hir::ModuleDef::Const(_)) => HighlightTag::CONSTANT, - NameDefinition::ModuleDef(hir::ModuleDef::Static(_)) => HighlightTag::CONSTANT, - NameDefinition::ModuleDef(hir::ModuleDef::Trait(_)) => HighlightTag::TYPE, - NameDefinition::ModuleDef(hir::ModuleDef::TypeAlias(_)) => HighlightTag::TYPE, - NameDefinition::ModuleDef(hir::ModuleDef::BuiltinType(_)) => HighlightTag::TYPE_BUILTIN, - NameDefinition::SelfType(_) => HighlightTag::TYPE_SELF, - NameDefinition::TypeParam(_) => HighlightTag::TYPE_PARAM, + NameDefinition::Macro(_) => HighlightTag::Macro, + NameDefinition::StructField(_) => HighlightTag::Field, + NameDefinition::ModuleDef(hir::ModuleDef::Module(_)) => HighlightTag::Module, + NameDefinition::ModuleDef(hir::ModuleDef::Function(_)) => HighlightTag::Function, + NameDefinition::ModuleDef(hir::ModuleDef::Adt(_)) => HighlightTag::Type, + NameDefinition::ModuleDef(hir::ModuleDef::EnumVariant(_)) => HighlightTag::Constant, + NameDefinition::ModuleDef(hir::ModuleDef::Const(_)) => HighlightTag::Constant, + NameDefinition::ModuleDef(hir::ModuleDef::Static(_)) => HighlightTag::Constant, + NameDefinition::ModuleDef(hir::ModuleDef::Trait(_)) => HighlightTag::Type, + NameDefinition::ModuleDef(hir::ModuleDef::TypeAlias(_)) => HighlightTag::Type, + NameDefinition::ModuleDef(hir::ModuleDef::BuiltinType(_)) => { + return HighlightTag::Type | HighlightModifier::Builtin + } + NameDefinition::SelfType(_) => HighlightTag::TypeSelf, + NameDefinition::TypeParam(_) => HighlightTag::TypeParam, NameDefinition::Local(local) => { + let mut h = Highlight::new(HighlightTag::Variable); if local.is_mut(db) || local.ty(db).is_mutable_reference() { - HighlightTag::VARIABLE_MUT - } else { - HighlightTag::VARIABLE + h |= HighlightModifier::Mutable; } + return h; } } + .into() } //FIXME: like, real html escaping @@ -498,6 +511,6 @@ fn bar() { }) .unwrap(); - assert_eq!(&highlights[0].tag.to_string(), "field"); + assert_eq!(&highlights[0].highlight.to_string(), "field"); } } -- cgit v1.2.3