diff options
Diffstat (limited to 'src/libsyntax/ext/base.rs')
| -rw-r--r-- | src/libsyntax/ext/base.rs | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs index 1efe0b3478d..7e8b7007b22 100644 --- a/src/libsyntax/ext/base.rs +++ b/src/libsyntax/ext/base.rs @@ -14,6 +14,7 @@ use parse::token; use ptr::P; use smallvec::SmallVec; use symbol::{keywords, Ident, Symbol}; +use visit::Visitor; use ThinVec; use rustc_data_structures::fx::FxHashMap; @@ -135,6 +136,17 @@ impl Annotatable { _ => false, } } + + pub fn visit_with<'a, V: Visitor<'a>>(&'a self, visitor: &mut V) { + match self { + Annotatable::Item(item) => visitor.visit_item(item), + Annotatable::TraitItem(trait_item) => visitor.visit_trait_item(trait_item), + Annotatable::ImplItem(impl_item) => visitor.visit_impl_item(impl_item), + Annotatable::ForeignItem(foreign_item) => visitor.visit_foreign_item(foreign_item), + Annotatable::Stmt(stmt) => visitor.visit_stmt(stmt), + Annotatable::Expr(expr) => visitor.visit_expr(expr), + } + } } // A more flexible ItemDecorator. @@ -730,6 +742,7 @@ pub trait Resolver { fn next_node_id(&mut self) -> ast::NodeId; fn get_module_scope(&mut self, id: ast::NodeId) -> Mark; + fn resolve_dollar_crates(&mut self, annotatable: &Annotatable); fn visit_ast_fragment_with_placeholders(&mut self, mark: Mark, fragment: &AstFragment, derives: &[Mark]); fn add_builtin(&mut self, ident: ast::Ident, ext: Lrc<SyntaxExtension>); @@ -763,6 +776,7 @@ impl Resolver for DummyResolver { fn next_node_id(&mut self) -> ast::NodeId { ast::DUMMY_NODE_ID } fn get_module_scope(&mut self, _id: ast::NodeId) -> Mark { Mark::root() } + fn resolve_dollar_crates(&mut self, _annotatable: &Annotatable) {} fn visit_ast_fragment_with_placeholders(&mut self, _invoc: Mark, _fragment: &AstFragment, _derives: &[Mark]) {} fn add_builtin(&mut self, _ident: ast::Ident, _ext: Lrc<SyntaxExtension>) {} |