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Basic support for decl macros 2.0

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This commit is contained in:
Jonas Schievink 2020-12-15 18:43:19 +01:00
parent bd4c352831
commit c31c3246a8
15 changed files with 195 additions and 28 deletions
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19
crates/hir_expand/src/builtin_macro.rs
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@ -63,7 +63,7 @@ macro_rules! register_builtin {
pub fn find_builtin_macro(
ident: &name::Name,
krate: CrateId,
ast_id: AstId<ast::MacroRules>,
ast_id: AstId<ast::Macro>,
) -> Option<MacroDefId> {
let kind = find_by_name(ident)?;
@ -515,16 +515,19 @@ mod tests {
fn expand_builtin_macro(ra_fixture: &str) -> String {
let (db, file_id) = TestDB::with_single_file(&ra_fixture);
let parsed = db.parse(file_id);
let macro_rules: Vec<_> =
let mut macro_rules: Vec<_> =
parsed.syntax_node().descendants().filter_map(ast::MacroRules::cast).collect();
let macro_calls: Vec<_> =
let mut macro_calls: Vec<_> =
parsed.syntax_node().descendants().filter_map(ast::MacroCall::cast).collect();
let ast_id_map = db.ast_id_map(file_id.into());
assert_eq!(macro_rules.len(), 1, "test must contain exactly 1 `macro_rules!`");
assert_eq!(macro_calls.len(), 1, "test must contain exactly 1 macro call");
let expander = find_by_name(&macro_rules[0].name().unwrap().as_name()).unwrap();
let macro_rules = ast::Macro::from(macro_rules.pop().unwrap());
let macro_call = macro_calls.pop().unwrap();
let expander = find_by_name(&macro_rules.name().unwrap().as_name()).unwrap();
let krate = CrateId(0);
let file_id = match expander {
@ -532,7 +535,7 @@ mod tests {
// the first one should be a macro_rules
let def = MacroDefId {
krate: Some(CrateId(0)),
ast_id: Some(AstId::new(file_id.into(), ast_id_map.ast_id(&macro_rules[0]))),
ast_id: Some(AstId::new(file_id.into(), ast_id_map.ast_id(&macro_rules))),
kind: MacroDefKind::BuiltIn(expander),
local_inner: false,
};
@ -542,7 +545,7 @@ mod tests {
krate,
kind: MacroCallKind::FnLike(AstId::new(
file_id.into(),
ast_id_map.ast_id(&macro_calls[0]),
ast_id_map.ast_id(&macro_call),
)),
};
@ -553,12 +556,12 @@ mod tests {
// the first one should be a macro_rules
let def = MacroDefId {
krate: Some(krate),
ast_id: Some(AstId::new(file_id.into(), ast_id_map.ast_id(&macro_rules[0]))),
ast_id: Some(AstId::new(file_id.into(), ast_id_map.ast_id(&macro_rules))),
kind: MacroDefKind::BuiltInEager(expander),
local_inner: false,
};
let args = macro_calls[0].token_tree().unwrap();
let args = macro_call.token_tree().unwrap();
let parsed_args = mbe::ast_to_token_tree(&args).unwrap().0;
let arg_id = db.intern_eager_expansion({