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-rw-r--r--crates/ra_hir/src/source_binder.rs39
1 files changed, 38 insertions, 1 deletions
diff --git a/crates/ra_hir/src/source_binder.rs b/crates/ra_hir/src/source_binder.rs
index 24490d119..85bd84469 100644
--- a/crates/ra_hir/src/source_binder.rs
+++ b/crates/ra_hir/src/source_binder.rs
@@ -8,8 +8,8 @@
8use ra_db::{FileId, FilePosition, Cancelable}; 8use ra_db::{FileId, FilePosition, Cancelable};
9use ra_editor::find_node_at_offset; 9use ra_editor::find_node_at_offset;
10use ra_syntax::{ 10use ra_syntax::{
11 SmolStr, TextRange, SyntaxNodeRef,
11 ast::{self, AstNode, NameOwner}, 12 ast::{self, AstNode, NameOwner},
12 SyntaxNodeRef,
13}; 13};
14 14
15use crate::{ 15use crate::{
@@ -126,3 +126,40 @@ pub fn function_from_child_node(
126 let fn_def = ctry!(node.ancestors().find_map(ast::FnDef::cast)); 126 let fn_def = ctry!(node.ancestors().find_map(ast::FnDef::cast));
127 function_from_source(db, file_id, fn_def) 127 function_from_source(db, file_id, fn_def)
128} 128}
129
130pub fn macro_symbols(
131 db: &impl HirDatabase,
132 file_id: FileId,
133) -> Cancelable<Vec<(SmolStr, TextRange)>> {
134 let module = match module_from_file_id(db, file_id)? {
135 Some(it) => it,
136 None => return Ok(Vec::new()),
137 };
138 let items = db.input_module_items(module.source_root_id, module.module_id)?;
139 let mut res = Vec::new();
140
141 for macro_call_id in items
142 .items
143 .iter()
144 .filter_map(|it| it.id.file_id.as_macro_call_id())
145 {
146 if let Some(exp) = db.expand_macro_invocation(macro_call_id) {
147 let loc = macro_call_id.loc(db);
148 let syntax = db.file_item(loc.source_item_id);
149 let syntax = syntax.borrowed();
150 let macro_call = ast::MacroCall::cast(syntax).unwrap();
151 let off = macro_call.token_tree().unwrap().syntax().range().start();
152 let file = exp.file();
153 for trait_def in file.syntax().descendants().filter_map(ast::TraitDef::cast) {
154 if let Some(name) = trait_def.name() {
155 let dst_range = name.syntax().range();
156 if let Some(src_range) = exp.map_range_back(dst_range) {
157 res.push((name.text(), src_range + off))
158 }
159 }
160 }
161 }
162 }
163
164 Ok(res)
165}