bjoernager/rust
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use matches!() macro in more places

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This commit is contained in:
Matthias Krüger 2020-12-24 02:55:21 +01:00
parent c34c015fe2
commit d12a358673
34 changed files with 138 additions and 270 deletions
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7
compiler/rustc_parse/src/parser/path.rs
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@ -501,10 +501,9 @@ impl<'a> Parser<'a> {
pub(super) fn expr_is_valid_const_arg(&self, expr: &P<rustc_ast::Expr>) -> bool {
match &expr.kind {
ast::ExprKind::Block(_, _) | ast::ExprKind::Lit(_) => true,
ast::ExprKind::Unary(ast::UnOp::Neg, expr) => match &expr.kind {
ast::ExprKind::Lit(_) => true,
_ => false,
},
ast::ExprKind::Unary(ast::UnOp::Neg, expr) => {
matches!(expr.kind, ast::ExprKind::Lit(_))
}
// We can only resolve single-segment paths at the moment, because multi-segment paths
// require type-checking: see `visit_generic_arg` in `src/librustc_resolve/late.rs`.
ast::ExprKind::Path(None, path)