diff options
Diffstat (limited to 'compiler/rustc_ast/src/ast.rs')
| -rw-r--r-- | compiler/rustc_ast/src/ast.rs | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index e3ac8a8784a..43b429f6947 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -120,6 +120,12 @@ impl Path { pub fn is_global(&self) -> bool { !self.segments.is_empty() && self.segments[0].ident.name == kw::PathRoot } + + /// If this path is a single identifier with no arguments, does not ensure + /// that the path resolves to a const param, the caller should check this. + pub fn is_potential_trivial_const_arg(&self) -> bool { + self.segments.len() == 1 && self.segments[0].args.is_none() + } } /// A segment of a path: an identifier, an optional lifetime, and a set of types. @@ -1154,7 +1160,9 @@ impl Expr { /// /// If this is not the case, name resolution does not resolve `N` when using /// `min_const_generics` as more complex expressions are not supported. - pub fn is_potential_trivial_const_param(&self) -> bool { + /// + /// Does not ensure that the path resolves to a const param, the caller should check this. + pub fn is_potential_trivial_const_arg(&self) -> bool { let this = if let ExprKind::Block(block, None) = &self.kind && block.stmts.len() == 1 && let StmtKind::Expr(expr) = &block.stmts[0].kind @@ -1165,8 +1173,7 @@ impl Expr { }; if let ExprKind::Path(None, path) = &this.kind - && path.segments.len() == 1 - && path.segments[0].args.is_none() + && path.is_potential_trivial_const_arg() { true } else { |