mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-02 15:32:06 +00:00
minor: Cleanup syntax highlighting
This commit is contained in:
Lukas Wirth
parent
22160c418b
commit
19d894cdec
@ -265,6 +265,7 @@ fn traverse(
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}
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let element = match event {
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WalkEvent::Enter(NodeOrToken::Token(tok)) if tok.kind() == WHITESPACE => continue,
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WalkEvent::Enter(it) => it,
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WalkEvent::Leave(NodeOrToken::Token(_)) => continue,
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WalkEvent::Leave(NodeOrToken::Node(node)) => {
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@ -347,13 +348,16 @@ fn traverse(
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}
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// do the normal highlighting
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let element = highlight::element(
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sema,
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krate,
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&mut bindings_shadow_count,
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syntactic_name_ref_highlighting,
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element_to_highlight,
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);
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let element = match element_to_highlight {
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NodeOrToken::Node(node) => highlight::node(
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sema,
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krate,
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&mut bindings_shadow_count,
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syntactic_name_ref_highlighting,
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node,
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),
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NodeOrToken::Token(token) => highlight::token(sema, krate, token).zip(Some(None)),
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};
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if let Some((mut highlight, binding_hash)) = element {
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if inside_attribute {
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highlight |= HlMod::Attribute
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@ -8,7 +8,7 @@ use ide_db::{
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};
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use rustc_hash::FxHashMap;
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use syntax::{
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ast, match_ast, AstNode, AstToken, NodeOrToken, SyntaxElement,
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ast, match_ast, AstNode, AstToken, NodeOrToken,
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SyntaxKind::{self, *},
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SyntaxNode, SyntaxToken, T,
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};
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@ -18,174 +18,46 @@ use crate::{
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Highlight, HlMod, HlTag,
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};
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pub(super) fn element(
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sema: &Semantics<RootDatabase>,
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krate: Option<hir::Crate>,
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bindings_shadow_count: &mut FxHashMap<hir::Name, u32>,
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syntactic_name_ref_highlighting: bool,
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element: SyntaxElement,
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) -> Option<(Highlight, Option<u64>)> {
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match element {
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NodeOrToken::Node(it) => {
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node(sema, krate, bindings_shadow_count, syntactic_name_ref_highlighting, it)
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}
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NodeOrToken::Token(it) => Some((token(sema, krate, it)?, None)),
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}
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}
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fn token(
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pub(super) fn token(
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sema: &Semantics<RootDatabase>,
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krate: Option<hir::Crate>,
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token: SyntaxToken,
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) -> Option<Highlight> {
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let highlight: Highlight = if let Some(comment) = ast::Comment::cast(token.clone()) {
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if let Some(comment) = ast::Comment::cast(token.clone()) {
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let h = HlTag::Comment;
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match comment.kind().doc {
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return Some(match comment.kind().doc {
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Some(_) => h | HlMod::Documentation,
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None => h.into(),
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});
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}
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let highlight: Highlight = match token.kind() {
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STRING | BYTE_STRING => HlTag::StringLiteral.into(),
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INT_NUMBER if token.ancestors().nth(1).map(|it| it.kind()) == Some(FIELD_EXPR) => {
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SymbolKind::Field.into()
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}
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} else {
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match token.kind() {
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STRING | BYTE_STRING => HlTag::StringLiteral.into(),
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INT_NUMBER if token.ancestors().nth(1).map_or(false, |it| it.kind() == FIELD_EXPR) => {
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SymbolKind::Field.into()
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}
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INT_NUMBER | FLOAT_NUMBER => HlTag::NumericLiteral.into(),
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BYTE => HlTag::ByteLiteral.into(),
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CHAR => HlTag::CharLiteral.into(),
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T![?] => HlTag::Operator(HlOperator::Other) | HlMod::ControlFlow,
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IDENT if parent_matches::<ast::TokenTree>(&token) => {
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if let Some(attr) = token.ancestors().nth(2).and_then(ast::Attr::cast) {
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INT_NUMBER | FLOAT_NUMBER => HlTag::NumericLiteral.into(),
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BYTE => HlTag::ByteLiteral.into(),
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CHAR => HlTag::CharLiteral.into(),
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IDENT if parent_matches::<ast::TokenTree>(&token) => {
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match token.ancestors().nth(2).and_then(ast::Attr::cast) {
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Some(attr) => {
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match try_resolve_derive_input(sema, &attr, &ast::Ident::cast(token).unwrap()) {
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Some(res) => highlight_def(sema, krate, Definition::from(res)),
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None => HlTag::None.into(),
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}
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} else {
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HlTag::None.into()
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}
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None => HlTag::None.into(),
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}
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p if p.is_punct() => match p {
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T![&] if parent_matches::<ast::BinExpr>(&token) => HlOperator::Bitwise.into(),
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T![&] => {
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let h = HlTag::Operator(HlOperator::Other).into();
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let is_unsafe = token
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.parent()
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.and_then(ast::RefExpr::cast)
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.map_or(false, |ref_expr| sema.is_unsafe_ref_expr(&ref_expr));
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if is_unsafe {
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h | HlMod::Unsafe
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} else {
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h
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}
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}
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T![::] | T![->] | T![=>] | T![..] | T![=] | T![@] | T![.] => {
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HlOperator::Other.into()
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}
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T![!] if parent_matches::<ast::MacroCall>(&token) => HlPunct::MacroBang.into(),
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T![!] if parent_matches::<ast::NeverType>(&token) => HlTag::BuiltinType.into(),
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T![!] if parent_matches::<ast::PrefixExpr>(&token) => HlOperator::Logical.into(),
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T![*] if parent_matches::<ast::PtrType>(&token) => HlTag::Keyword.into(),
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T![*] if parent_matches::<ast::PrefixExpr>(&token) => {
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let prefix_expr = token.parent().and_then(ast::PrefixExpr::cast)?;
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let expr = prefix_expr.expr()?;
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let ty = sema.type_of_expr(&expr)?.original;
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if ty.is_raw_ptr() {
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HlTag::Operator(HlOperator::Other) | HlMod::Unsafe
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} else if let Some(ast::UnaryOp::Deref) = prefix_expr.op_kind() {
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HlOperator::Other.into()
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} else {
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HlPunct::Other.into()
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}
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}
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T![-] if parent_matches::<ast::PrefixExpr>(&token) => {
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let prefix_expr = token.parent().and_then(ast::PrefixExpr::cast)?;
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let expr = prefix_expr.expr()?;
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match expr {
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ast::Expr::Literal(_) => HlTag::NumericLiteral,
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_ => HlTag::Operator(HlOperator::Other),
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}
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.into()
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}
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_ if parent_matches::<ast::PrefixExpr>(&token) => HlOperator::Other.into(),
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T![+] | T![-] | T![*] | T![/] if parent_matches::<ast::BinExpr>(&token) => {
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HlOperator::Arithmetic.into()
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}
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T![+=] | T![-=] | T![*=] | T![/=] if parent_matches::<ast::BinExpr>(&token) => {
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Highlight::from(HlOperator::Arithmetic) | HlMod::Mutable
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}
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T![|] | T![&] | T![!] | T![^] if parent_matches::<ast::BinExpr>(&token) => {
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HlOperator::Bitwise.into()
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}
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T![|=] | T![&=] | T![^=] if parent_matches::<ast::BinExpr>(&token) => {
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Highlight::from(HlOperator::Bitwise) | HlMod::Mutable
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}
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T![&&] | T![||] if parent_matches::<ast::BinExpr>(&token) => {
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HlOperator::Logical.into()
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}
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T![>] | T![<] | T![==] | T![>=] | T![<=] | T![!=]
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if parent_matches::<ast::BinExpr>(&token) =>
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{
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HlOperator::Comparison.into()
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}
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_ if parent_matches::<ast::BinExpr>(&token) => HlOperator::Other.into(),
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_ if parent_matches::<ast::RangeExpr>(&token) => HlOperator::Other.into(),
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_ if parent_matches::<ast::RangePat>(&token) => HlOperator::Other.into(),
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_ if parent_matches::<ast::RestPat>(&token) => HlOperator::Other.into(),
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_ if parent_matches::<ast::Attr>(&token) => HlTag::AttributeBracket.into(),
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kind => match kind {
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T!['['] | T![']'] => HlPunct::Bracket,
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T!['{'] | T!['}'] => HlPunct::Brace,
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T!['('] | T![')'] => HlPunct::Parenthesis,
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T![<] | T![>] => HlPunct::Angle,
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T![,] => HlPunct::Comma,
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T![:] => HlPunct::Colon,
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T![;] => HlPunct::Semi,
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T![.] => HlPunct::Dot,
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_ => HlPunct::Other,
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}
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.into(),
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},
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k if k.is_keyword() => {
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let h = Highlight::new(HlTag::Keyword);
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match k {
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T![await] => h | HlMod::Async | HlMod::ControlFlow,
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T![break]
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| T![continue]
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| T![else]
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| T![if]
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| T![in]
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| T![loop]
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| T![match]
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| T![return]
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| T![while]
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| T![yield] => h | HlMod::ControlFlow,
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T![for] if !is_child_of_impl(&token) => h | HlMod::ControlFlow,
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T![unsafe] => h | HlMod::Unsafe,
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T![true] | T![false] => HlTag::BoolLiteral.into(),
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// crate is handled just as a token if it's in an `extern crate`
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T![crate] if parent_matches::<ast::ExternCrate>(&token) => h,
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// self, crate and super are handled as either a Name or NameRef already
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T![self] | T![crate] | T![super] => return None,
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T![ref] => token
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.parent()
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.and_then(ast::IdentPat::cast)
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.and_then(|ident_pat| {
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(sema.is_unsafe_ident_pat(&ident_pat)).then(|| HlMod::Unsafe)
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})
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.map_or(h, |modifier| h | modifier),
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T![async] => h | HlMod::Async,
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_ => h,
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}
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}
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_ => return None,
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}
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p if p.is_punct() => punctuation(sema, token, p),
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k if k.is_keyword() => keyword(sema, token, k)?,
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_ => return None,
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};
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Some(highlight)
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}
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fn node(
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pub(super) fn node(
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sema: &Semantics<RootDatabase>,
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krate: Option<hir::Crate>,
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bindings_shadow_count: &mut FxHashMap<hir::Name, u32>,
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@ -195,18 +67,6 @@ fn node(
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let mut binding_hash = None;
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let highlight = match_ast! {
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match node {
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ast::Fn(__) => {
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bindings_shadow_count.clear();
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return None;
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},
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ast::Attr(__) => {
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HlTag::AttributeBracket.into()
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},
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// Highlight definitions depending on the "type" of the definition.
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ast::Name(name) => {
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highlight_name(sema, bindings_shadow_count, &mut binding_hash, krate, name)
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},
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// Highlight references like the definitions they resolve to
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ast::NameRef(name_ref) => {
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highlight_name_ref(
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sema,
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@ -217,6 +77,9 @@ fn node(
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name_ref,
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)
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},
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ast::Name(name) => {
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highlight_name(sema, bindings_shadow_count, &mut binding_hash, krate, name)
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},
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ast::Lifetime(lifetime) => {
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match NameClass::classify_lifetime(sema, &lifetime) {
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Some(NameClass::Definition(def)) => {
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@ -229,12 +92,129 @@ fn node(
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_ => Highlight::from(SymbolKind::LifetimeParam) | HlMod::Definition,
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}
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},
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_ => return None,
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ast::Fn(_) => {
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bindings_shadow_count.clear();
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return None;
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},
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_ => {
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if [FN, CONST, STATIC].contains(&node.kind()) {
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bindings_shadow_count.clear();
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}
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return None
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},
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}
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};
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Some((highlight, binding_hash))
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}
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fn punctuation(sema: &Semantics<RootDatabase>, token: SyntaxToken, kind: SyntaxKind) -> Highlight {
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let parent = token.parent();
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let parent_kind = parent.as_ref().map_or(EOF, SyntaxNode::kind);
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match (kind, parent_kind) {
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(T![?], _) => HlTag::Operator(HlOperator::Other) | HlMod::ControlFlow,
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(T![&], BIN_EXPR) => HlOperator::Bitwise.into(),
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(T![&], _) => {
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let h = HlTag::Operator(HlOperator::Other).into();
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let is_unsafe = parent
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.and_then(ast::RefExpr::cast)
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.map(|ref_expr| sema.is_unsafe_ref_expr(&ref_expr));
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if let Some(true) = is_unsafe {
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h | HlMod::Unsafe
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} else {
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h
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}
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}
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(T![::] | T![->] | T![=>] | T![..] | T![=] | T![@] | T![.], _) => HlOperator::Other.into(),
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(T![!], MACRO_CALL) => HlPunct::MacroBang.into(),
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(T![!], NEVER_TYPE) => HlTag::BuiltinType.into(),
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(T![!], PREFIX_EXPR) => HlOperator::Logical.into(),
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(T![*], PTR_TYPE) => HlTag::Keyword.into(),
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(T![*], PREFIX_EXPR) => {
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let is_raw_ptr = (|| {
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let prefix_expr = parent.and_then(ast::PrefixExpr::cast)?;
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let expr = prefix_expr.expr()?;
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sema.type_of_expr(&expr)?.original.is_raw_ptr().then(|| ())
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})();
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if let Some(()) = is_raw_ptr {
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HlTag::Operator(HlOperator::Other) | HlMod::Unsafe
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} else {
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HlOperator::Other.into()
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}
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}
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(T![-], PREFIX_EXPR) => {
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let prefix_expr = parent.and_then(ast::PrefixExpr::cast).and_then(|e| e.expr());
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match prefix_expr {
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Some(ast::Expr::Literal(_)) => HlTag::NumericLiteral,
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_ => HlTag::Operator(HlOperator::Other),
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}
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.into()
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}
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(T![+] | T![-] | T![*] | T![/], BIN_EXPR) => HlOperator::Arithmetic.into(),
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(T![+=] | T![-=] | T![*=] | T![/=], BIN_EXPR) => {
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Highlight::from(HlOperator::Arithmetic) | HlMod::Mutable
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}
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(T![|] | T![&] | T![!] | T![^], BIN_EXPR) => HlOperator::Bitwise.into(),
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(T![|=] | T![&=] | T![^=], BIN_EXPR) => {
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Highlight::from(HlOperator::Bitwise) | HlMod::Mutable
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}
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(T![&&] | T![||], BIN_EXPR) => HlOperator::Logical.into(),
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(T![>] | T![<] | T![==] | T![>=] | T![<=] | T![!=], BIN_EXPR) => {
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HlOperator::Comparison.into()
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}
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(_, PREFIX_EXPR | BIN_EXPR | RANGE_EXPR | RANGE_PAT | REST_PAT) => HlOperator::Other.into(),
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(_, ATTR) => HlTag::AttributeBracket.into(),
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(kind, _) => match kind {
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T!['['] | T![']'] => HlPunct::Bracket,
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T!['{'] | T!['}'] => HlPunct::Brace,
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T!['('] | T![')'] => HlPunct::Parenthesis,
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T![<] | T![>] => HlPunct::Angle,
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T![,] => HlPunct::Comma,
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T![:] => HlPunct::Colon,
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T![;] => HlPunct::Semi,
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T![.] => HlPunct::Dot,
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_ => HlPunct::Other,
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}
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.into(),
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}
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}
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fn keyword(
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sema: &Semantics<RootDatabase>,
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token: SyntaxToken,
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kind: SyntaxKind,
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) -> Option<Highlight> {
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let h = Highlight::new(HlTag::Keyword);
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let h = match kind {
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T![await] => h | HlMod::Async | HlMod::ControlFlow,
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T![async] => h | HlMod::Async,
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T![break]
|
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| T![continue]
|
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| T![else]
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| T![if]
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| T![in]
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| T![loop]
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| T![match]
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| T![return]
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| T![while]
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| T![yield] => h | HlMod::ControlFlow,
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T![for] if parent_matches::<ast::ForExpr>(&token) => h | HlMod::ControlFlow,
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T![unsafe] => h | HlMod::Unsafe,
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T![true] | T![false] => HlTag::BoolLiteral.into(),
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// crate is handled just as a token if it's in an `extern crate`
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T![crate] if parent_matches::<ast::ExternCrate>(&token) => h,
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// self, crate and super are handled as either a Name or NameRef already, unless they
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// are inside unmapped token trees
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T![self] | T![crate] | T![super] if parent_matches::<ast::NameRef>(&token) => return None,
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T![self] if parent_matches::<ast::Name>(&token) => return None,
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T![ref] => match token.parent().and_then(ast::IdentPat::cast) {
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Some(ident) if sema.is_unsafe_ident_pat(&ident) => h | HlMod::Unsafe,
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_ => h,
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},
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_ => h,
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};
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Some(h)
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}
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fn highlight_name_ref(
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sema: &Semantics<RootDatabase>,
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krate: Option<hir::Crate>,
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@ -325,10 +305,9 @@ fn highlight_name(
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krate: Option<hir::Crate>,
|
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name: ast::Name,
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) -> Highlight {
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let db = sema.db;
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let name_kind = NameClass::classify(sema, &name);
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if let Some(NameClass::Definition(Definition::Local(local))) = &name_kind {
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if let Some(name) = local.name(db) {
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if let Some(name) = local.name(sema.db) {
|
||||
let shadow_count = bindings_shadow_count.entry(name.clone()).or_default();
|
||||
*shadow_count += 1;
|
||||
*binding_hash = Some(calc_binding_hash(&name, *shadow_count))
|
||||
@ -338,7 +317,7 @@ fn highlight_name(
|
||||
Some(NameClass::Definition(def)) => {
|
||||
let mut h = highlight_def(sema, krate, def) | HlMod::Definition;
|
||||
if let Definition::Trait(trait_) = &def {
|
||||
if trait_.is_unsafe(db) {
|
||||
if trait_.is_unsafe(sema.db) {
|
||||
h |= HlMod::Unsafe;
|
||||
}
|
||||
}
|
||||
@ -347,7 +326,7 @@ fn highlight_name(
|
||||
Some(NameClass::ConstReference(def)) => highlight_def(sema, krate, def),
|
||||
Some(NameClass::PatFieldShorthand { field_ref, .. }) => {
|
||||
let mut h = HlTag::Symbol(SymbolKind::Field).into();
|
||||
if let hir::VariantDef::Union(_) = field_ref.parent_def(db) {
|
||||
if let hir::VariantDef::Union(_) = field_ref.parent_def(sema.db) {
|
||||
h |= HlMod::Unsafe;
|
||||
}
|
||||
h
|
||||
@ -729,21 +708,14 @@ fn parents_match(mut node: NodeOrToken<SyntaxNode, SyntaxToken>, mut kinds: &[Sy
|
||||
kinds.is_empty()
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn parent_matches<N: AstNode>(token: &SyntaxToken) -> bool {
|
||||
token.parent().map_or(false, |it| N::can_cast(it.kind()))
|
||||
}
|
||||
|
||||
fn is_child_of_impl(token: &SyntaxToken) -> bool {
|
||||
match token.parent() {
|
||||
Some(e) => e.kind() == IMPL,
|
||||
_ => false,
|
||||
}
|
||||
}
|
||||
|
||||
fn is_in_fn_with_self_param<N: AstNode>(node: &N) -> bool {
|
||||
node.syntax()
|
||||
.ancestors()
|
||||
.take_while(|node| ast::Expr::can_cast(node.kind()) || ast::Fn::can_cast(node.kind()))
|
||||
.find_map(ast::Fn::cast)
|
||||
.and_then(|s| s.param_list()?.self_param())
|
||||
.is_some()
|
||||
|
||||
@ -143,12 +143,12 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
|
||||
<span class="comment documentation">///</span>
|
||||
<span class="comment documentation">/// ```</span>
|
||||
<span class="comment documentation">/// </span><span class="keyword control injected">loop</span><span class="none injected"> </span><span class="brace injected">{</span><span class="brace injected">}</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">not</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"false"</span><span class="parenthesis attribute">)</span><span class="comma attribute">,</span><span class="attribute_bracket attribute"> </span><span class="none attribute">doc</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"</span><span class="keyword control injected">loop</span><span class="none injected"> </span><span class="brace injected">{</span><span class="brace injected">}</span><span class="string_literal attribute">"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">doc</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"</span><span class="keyword control injected">loop</span><span class="none injected"> </span><span class="brace injected">{</span><span class="brace injected">}</span><span class="string_literal attribute">"</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">not</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"false"</span><span class="parenthesis attribute">)</span><span class="comma attribute">,</span> <span class="none attribute">doc</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"</span><span class="keyword control injected">loop</span><span class="none injected"> </span><span class="brace injected">{</span><span class="brace injected">}</span><span class="string_literal attribute">"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">doc</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"</span><span class="keyword control injected">loop</span><span class="none injected"> </span><span class="brace injected">{</span><span class="brace injected">}</span><span class="string_literal attribute">"</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="comment documentation">/// ```</span>
|
||||
<span class="comment documentation">///</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"alloc"</span><span class="comma attribute">,</span><span class="attribute_bracket attribute"> </span><span class="none attribute">doc</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"```rust"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">not</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"alloc"</span><span class="parenthesis attribute">)</span><span class="comma attribute">,</span><span class="attribute_bracket attribute"> </span><span class="none attribute">doc</span><span class="attribute_bracket attribute"> </span><span class="operator attribute">=</span><span class="attribute_bracket attribute"> </span><span class="string_literal attribute">"```ignore"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"alloc"</span><span class="comma attribute">,</span> <span class="none attribute">doc</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"```rust"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="builtin_attr attribute library">cfg_attr</span><span class="parenthesis attribute">(</span><span class="none attribute">not</span><span class="parenthesis attribute">(</span><span class="none attribute">feature</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"alloc"</span><span class="parenthesis attribute">)</span><span class="comma attribute">,</span> <span class="none attribute">doc</span> <span class="operator attribute">=</span> <span class="string_literal attribute">"```ignore"</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
|
||||
<span class="comment documentation">/// </span><span class="keyword injected">let</span><span class="none injected"> </span><span class="punctuation injected">_</span><span class="none injected"> </span><span class="operator injected">=</span><span class="none injected"> </span><span class="function injected">example</span><span class="parenthesis injected">(</span><span class="operator injected">&</span><span class="module injected">alloc</span><span class="operator injected">::</span><span class="macro injected">vec</span><span class="macro_bang injected">!</span><span class="bracket injected">[</span><span class="numeric_literal injected">1</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">2</span><span class="comma injected">,</span><span class="none injected"> </span><span class="numeric_literal injected">3</span><span class="bracket injected">]</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
|
||||
<span class="comment documentation">/// ```</span>
|
||||
<span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration public">mix_and_match</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
|
||||
|
||||
@ -262,7 +262,7 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
|
||||
|
||||
<span class="keyword">impl</span> <span class="enum public">Bool</span> <span class="brace">{</span>
|
||||
<span class="keyword">pub</span> <span class="keyword">const</span> <span class="keyword">fn</span> <span class="function associated consuming declaration public">to_primitive</span><span class="parenthesis">(</span><span class="self_keyword declaration">self</span><span class="parenthesis">)</span> <span class="operator">-></span> <span class="builtin_type">bool</span> <span class="brace">{</span>
|
||||
<span class="unresolved_reference">matches</span><span class="macro_bang">!</span><span class="parenthesis">(</span>self<span class="comma">,</span> Self<span class="colon">:</span><span class="colon">:</span>True<span class="parenthesis">)</span>
|
||||
<span class="unresolved_reference">matches</span><span class="macro_bang">!</span><span class="parenthesis">(</span><span class="keyword">self</span><span class="comma">,</span> Self<span class="colon">:</span><span class="colon">:</span>True<span class="parenthesis">)</span>
|
||||
<span class="brace">}</span>
|
||||
<span class="brace">}</span>
|
||||
<span class="keyword">const</span> <span class="constant declaration">USAGE_OF_BOOL</span><span class="colon">:</span><span class="builtin_type">bool</span> <span class="operator">=</span> <span class="enum public">Bool</span><span class="operator">::</span><span class="enum_variant public">True</span><span class="operator">.</span><span class="function associated consuming public">to_primitive</span><span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span>
|
||||
|
||||
@ -359,18 +359,6 @@ impl NameRefClass {
|
||||
|
||||
let parent = name_ref.syntax().parent()?;
|
||||
|
||||
if let Some(method_call) = ast::MethodCallExpr::cast(parent.clone()) {
|
||||
if let Some(func) = sema.resolve_method_call(&method_call) {
|
||||
return Some(NameRefClass::Definition(Definition::Function(func)));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(field_expr) = ast::FieldExpr::cast(parent.clone()) {
|
||||
if let Some(field) = sema.resolve_field(&field_expr) {
|
||||
return Some(NameRefClass::Definition(Definition::Field(field)));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(record_field) = ast::RecordExprField::for_field_name(name_ref) {
|
||||
if let Some((field, local, _)) = sema.resolve_record_field(&record_field) {
|
||||
let res = match local {
|
||||
@ -383,38 +371,6 @@ impl NameRefClass {
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(record_pat_field) = ast::RecordPatField::cast(parent.clone()) {
|
||||
if let Some(field) = sema.resolve_record_pat_field(&record_pat_field) {
|
||||
let field = Definition::Field(field);
|
||||
return Some(NameRefClass::Definition(field));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(assoc_type_arg) = ast::AssocTypeArg::cast(parent.clone()) {
|
||||
if assoc_type_arg.name_ref().as_ref() == Some(name_ref) {
|
||||
// `Trait<Assoc = Ty>`
|
||||
// ^^^^^
|
||||
let path = name_ref.syntax().ancestors().find_map(ast::Path::cast)?;
|
||||
let resolved = sema.resolve_path(&path)?;
|
||||
if let PathResolution::Def(ModuleDef::Trait(tr)) = resolved {
|
||||
// FIXME: resolve in supertraits
|
||||
if let Some(ty) = tr
|
||||
.items(sema.db)
|
||||
.iter()
|
||||
.filter_map(|assoc| match assoc {
|
||||
hir::AssocItem::TypeAlias(it) => Some(*it),
|
||||
_ => None,
|
||||
})
|
||||
.find(|alias| alias.name(sema.db).to_smol_str() == name_ref.text().as_str())
|
||||
{
|
||||
return Some(NameRefClass::Definition(Definition::TypeAlias(ty)));
|
||||
}
|
||||
}
|
||||
|
||||
return None;
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(path) = ast::PathSegment::cast(parent.clone()).map(|it| it.parent_path()) {
|
||||
if path.parent_path().is_none() {
|
||||
if let Some(macro_call) = path.syntax().parent().and_then(ast::MacroCall::cast) {
|
||||
@ -428,10 +384,52 @@ impl NameRefClass {
|
||||
return sema.resolve_path(&path).map(Into::into).map(NameRefClass::Definition);
|
||||
}
|
||||
|
||||
let extern_crate = ast::ExternCrate::cast(parent)?;
|
||||
let krate = sema.resolve_extern_crate(&extern_crate)?;
|
||||
let root_module = krate.root_module(sema.db);
|
||||
Some(NameRefClass::Definition(Definition::Module(root_module)))
|
||||
match_ast! {
|
||||
match parent {
|
||||
ast::MethodCallExpr(method_call) => {
|
||||
sema.resolve_method_call(&method_call)
|
||||
.map(Definition::Function)
|
||||
.map(NameRefClass::Definition)
|
||||
},
|
||||
ast::FieldExpr(field_expr) => {
|
||||
sema.resolve_field(&field_expr)
|
||||
.map(Definition::Field)
|
||||
.map(NameRefClass::Definition)
|
||||
},
|
||||
ast::RecordPatField(record_pat_field) => {
|
||||
sema.resolve_record_pat_field(&record_pat_field)
|
||||
.map(Definition::Field)
|
||||
.map(NameRefClass::Definition)
|
||||
},
|
||||
ast::AssocTypeArg(_) => {
|
||||
// `Trait<Assoc = Ty>`
|
||||
// ^^^^^
|
||||
let containing_path = name_ref.syntax().ancestors().find_map(ast::Path::cast)?;
|
||||
let resolved = sema.resolve_path(&containing_path)?;
|
||||
if let PathResolution::Def(ModuleDef::Trait(tr)) = resolved {
|
||||
// FIXME: resolve in supertraits
|
||||
if let Some(ty) = tr
|
||||
.items(sema.db)
|
||||
.iter()
|
||||
.filter_map(|&assoc| match assoc {
|
||||
hir::AssocItem::TypeAlias(it) => Some(it),
|
||||
_ => None,
|
||||
})
|
||||
.find(|alias| alias.name(sema.db).to_smol_str() == name_ref.text().as_str())
|
||||
{
|
||||
return Some(NameRefClass::Definition(Definition::TypeAlias(ty)));
|
||||
}
|
||||
}
|
||||
None
|
||||
},
|
||||
ast::ExternCrate(extern_crate) => {
|
||||
let krate = sema.resolve_extern_crate(&extern_crate)?;
|
||||
let root_module = krate.root_module(sema.db);
|
||||
Some(NameRefClass::Definition(Definition::Module(root_module)))
|
||||
},
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn classify_lifetime(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user