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match_ast! takes a pattern to allow underscore usage

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This commit is contained in:
Lukas Wirth 2021-12-14 12:44:31 +01:00
parent 9915103c9e
commit 901c7c7277
6 changed files with 35 additions and 35 deletions
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4
crates/ide_assists/src/handlers/replace_qualified_name_with_use.rs
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@ -102,10 +102,10 @@ fn shorten_paths(node: &SyntaxNode, path: &ast::Path) {
match child {
// Don't modify `use` items, as this can break the `use` item when injecting a new
// import into the use tree.
ast::Use(_it) => continue,
ast::Use(_) => continue,
// Don't descend into submodules, they don't have the same `use` items in scope.
// FIXME: This isn't true due to `super::*` imports?
ast::Module(_it) => continue,
ast::Module(_) => continue,
ast::Path(p) => if maybe_replace_path(p.clone(), path.clone()).is_none() {
shorten_paths(p.syntax(), path);
},

28
crates/ide_completion/src/context.rs
View File

@ -517,7 +517,7 @@ impl<'a> CompletionContext<'a> {
(ty, name)
},
ast::ArgList(_it) => {
ast::ArgList(_) => {
cov_mark::hit!(expected_type_fn_param);
ActiveParameter::at_token(
&self.sema,
@ -608,9 +608,9 @@ impl<'a> CompletionContext<'a> {
.map(|c| (Some(c.return_type()), None))
.unwrap_or((None, None))
},
ast::ParamList(__) => (None, None),
ast::Stmt(__) => (None, None),
ast::Item(__) => (None, None),
ast::ParamList(_) => (None, None),
ast::Stmt(_) => (None, None),
ast::Item(_) => (None, None),
_ => {
match node.parent() {
Some(n) => {
@ -702,10 +702,10 @@ impl<'a> CompletionContext<'a> {
Some(match_ast! {
match parent {
ast::LifetimeParam(_it) => LifetimeContext::LifetimeParam(sema.find_node_at_offset_with_macros(original_file, offset)),
ast::BreakExpr(_it) => LifetimeContext::LabelRef,
ast::ContinueExpr(_it) => LifetimeContext::LabelRef,
ast::Label(_it) => LifetimeContext::LabelDef,
ast::LifetimeParam(_) => LifetimeContext::LifetimeParam(sema.find_node_at_offset_with_macros(original_file, offset)),
ast::BreakExpr(_) => LifetimeContext::LabelRef,
ast::ContinueExpr(_) => LifetimeContext::LabelRef,
ast::Label(_) => LifetimeContext::LabelDef,
_ => LifetimeContext::Lifetime,
}
})
@ -753,7 +753,7 @@ impl<'a> CompletionContext<'a> {
path_ctx.kind = path.syntax().ancestors().find_map(|it| {
match_ast! {
match it {
ast::PathType(_it) => Some(PathKind::Type),
ast::PathType(_) => Some(PathKind::Type),
ast::PathExpr(it) => {
path_ctx.has_call_parens = it.syntax().parent().map_or(false, |it| ast::CallExpr::can_cast(it.kind()));
Some(PathKind::Expr)
@ -772,9 +772,9 @@ impl<'a> CompletionContext<'a> {
Some(PathKind::Pat)
},
ast::MacroCall(it) => it.excl_token().and(Some(PathKind::Mac)),
ast::Meta(_it) => Some(PathKind::Attr),
ast::Meta(_) => Some(PathKind::Attr),
ast::Visibility(it) => Some(PathKind::Vis { has_in_token: it.in_token().is_some() }),
ast::UseTree(_it) => Some(PathKind::Use),
ast::UseTree(_) => Some(PathKind::Use),
_ => None,
}
}
@ -851,9 +851,9 @@ fn pattern_context_for(pat: ast::Pat) -> PatternContext {
});
return (PatternRefutability::Irrefutable, param.ty().is_some())
},
ast::MatchArm(__) => PatternRefutability::Refutable,
ast::Condition(__) => PatternRefutability::Refutable,
ast::ForExpr(__) => PatternRefutability::Irrefutable,
ast::MatchArm(_) => PatternRefutability::Refutable,
ast::Condition(_) => PatternRefutability::Refutable,
ast::ForExpr(_) => PatternRefutability::Irrefutable,
_ => PatternRefutability::Irrefutable,
}
};

32
crates/ide_completion/src/patterns.rs
View File

@ -100,7 +100,7 @@ pub(crate) fn determine_prev_sibling(name_like: &ast::NameLike) -> Option<Immedi
let res = match_ast! {
match prev_sibling {
// vis followed by random ident will always error the parser
ast::Visibility(_it) => ImmediatePrevSibling::Visibility,
ast::Visibility(_) => ImmediatePrevSibling::Visibility,
_ => return None,
}
};
@ -112,7 +112,7 @@ pub(crate) fn determine_prev_sibling(name_like: &ast::NameLike) -> Option<Immedi
let node = it.expr().filter(|_| it.semicolon_token().is_none())?.syntax().clone();
match_ast! {
match node {
ast::IfExpr(_it) => ImmediatePrevSibling::IfExpr,
ast::IfExpr(_) => ImmediatePrevSibling::IfExpr,
_ => return None,
}
}
@ -128,7 +128,7 @@ pub(crate) fn determine_prev_sibling(name_like: &ast::NameLike) -> Option<Immedi
} else {
return None
},
ast::Attr(_it) => ImmediatePrevSibling::Attribute,
ast::Attr(_) => ImmediatePrevSibling::Attribute,
_ => return None,
}
};
@ -200,31 +200,31 @@ pub(crate) fn determine_location(
let res = match_ast! {
match parent {
ast::IdentPat(_it) => ImmediateLocation::IdentPat,
ast::Rename(_it) => ImmediateLocation::Rename,
ast::StmtList(_it) => ImmediateLocation::StmtList,
ast::SourceFile(_it) => ImmediateLocation::ItemList,
ast::ItemList(_it) => ImmediateLocation::ItemList,
ast::RefExpr(_it) => ImmediateLocation::RefExpr,
ast::Variant(_it) => ImmediateLocation::Variant,
ast::IdentPat(_) => ImmediateLocation::IdentPat,
ast::Rename(_) => ImmediateLocation::Rename,
ast::StmtList(_) => ImmediateLocation::StmtList,
ast::SourceFile(_) => ImmediateLocation::ItemList,
ast::ItemList(_) => ImmediateLocation::ItemList,
ast::RefExpr(_) => ImmediateLocation::RefExpr,
ast::Variant(_) => ImmediateLocation::Variant,
ast::RecordField(it) => if it.ty().map_or(false, |it| it.syntax().text_range().contains(offset)) {
return None;
} else {
ImmediateLocation::RecordField
},
ast::RecordExprFieldList(_it) => sema
ast::RecordExprFieldList(_) => sema
.find_node_at_offset_with_macros(original_file, offset)
.map(ImmediateLocation::RecordExprUpdate)?,
ast::TupleField(_it) => ImmediateLocation::TupleField,
ast::TupleFieldList(_it) => ImmediateLocation::TupleField,
ast::TypeBound(_it) => ImmediateLocation::TypeBound,
ast::TypeBoundList(_it) => ImmediateLocation::TypeBound,
ast::TupleField(_) => ImmediateLocation::TupleField,
ast::TupleFieldList(_) => ImmediateLocation::TupleField,
ast::TypeBound(_) => ImmediateLocation::TypeBound,
ast::TypeBoundList(_) => ImmediateLocation::TypeBound,
ast::AssocItemList(it) => match it.syntax().parent().map(|it| it.kind()) {
Some(IMPL) => ImmediateLocation::Impl,
Some(TRAIT) => ImmediateLocation::Trait,
_ => return None,
},
ast::GenericArgList(_it) => sema
ast::GenericArgList(_) => sema
.find_node_at_offset_with_macros(original_file, offset)
.map(ImmediateLocation::GenericArgList)?,
ast::Module(it) => {

2
crates/ide_db/src/search.rs
View File

@ -657,7 +657,7 @@ impl ReferenceCategory {
let mode = r.syntax().ancestors().find_map(|node| {
match_ast! {
match (node) {
match node {
ast::BinExpr(expr) => {
if matches!(expr.op_kind()?, ast::BinaryOp::Assignment { .. }) {
// If the variable or field ends on the LHS's end then it's a Write (covers fields and locals).

2
crates/syntax/src/lib.rs
View File

@ -242,7 +242,7 @@ macro_rules! match_ast {
(match $node:ident { $($tt:tt)* }) => { match_ast!(match ($node) { $($tt)* }) };
(match ($node:expr) {
$( ast::$ast:ident($it:ident) => $res:expr, )*
$( ast::$ast:ident($it:pat) => $res:expr, )*
_ => $catch_all:expr $(,)?
}) => {{
$( if let Some($it) = ast::$ast::cast($node.clone()) { $res } else )*

2
crates/syntax/src/validation.rs
View File

@ -275,7 +275,7 @@ fn validate_path_keywords(segment: ast::PathSegment, errors: &mut Vec<SyntaxErro
return Some(tree_path);
}
},
ast::UseTreeList(_it) => continue,
ast::UseTreeList(_) => continue,
ast::Path(parent) => path = parent,
_ => return None,
}