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Cleanup some inert attribute stuff

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This commit is contained in:
Lukas Wirth 2024-06-04 12:31:04 +02:00
parent 09d7dcc143
commit 6f0207d594
17 changed files with 155 additions and 162 deletions
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57
crates/hir-def/src/attr.rs
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@ -1,10 +1,5 @@
//! A higher level attributes based on TokenTree, with also some shortcuts.
pub mod builtin;
#[cfg(test)]
mod tests;
use std::{borrow::Cow, hash::Hash, ops, slice::Iter as SliceIter};
use base_db::CrateId;
@ -646,3 +641,55 @@ pub(crate) fn fields_attrs_source_map(
Arc::new(res)
}
#[cfg(test)]
mod tests {
//! This module contains tests for doc-expression parsing.
//! Currently, it tests `#[doc(hidden)]` and `#[doc(alias)]`.
use triomphe::Arc;
use base_db::FileId;
use hir_expand::span_map::{RealSpanMap, SpanMap};
use mbe::{syntax_node_to_token_tree, DocCommentDesugarMode};
use syntax::{ast, AstNode, TextRange};
use crate::attr::{DocAtom, DocExpr};
fn assert_parse_result(input: &str, expected: DocExpr) {
let source_file = ast::SourceFile::parse(input, span::Edition::CURRENT).ok().unwrap();
let tt = source_file.syntax().descendants().find_map(ast::TokenTree::cast).unwrap();
let map = SpanMap::RealSpanMap(Arc::new(RealSpanMap::absolute(FileId::from_raw(0))));
let tt = syntax_node_to_token_tree(
tt.syntax(),
map.as_ref(),
map.span_for_range(TextRange::empty(0.into())),
DocCommentDesugarMode::ProcMacro,
);
let cfg = DocExpr::parse(&tt);
assert_eq!(cfg, expected);
}
#[test]
fn test_doc_expr_parser() {
assert_parse_result("#![doc(hidden)]", DocAtom::Flag("hidden".into()).into());
assert_parse_result(
r#"#![doc(alias = "foo")]"#,
DocAtom::KeyValue { key: "alias".into(), value: "foo".into() }.into(),
);
assert_parse_result(r#"#![doc(alias("foo"))]"#, DocExpr::Alias(["foo".into()].into()));
assert_parse_result(
r#"#![doc(alias("foo", "bar", "baz"))]"#,
DocExpr::Alias(["foo".into(), "bar".into(), "baz".into()].into()),
);
assert_parse_result(
r#"
#[doc(alias("Bar", "Qux"))]
struct Foo;"#,
DocExpr::Alias(["Bar".into(), "Qux".into()].into()),
);
}
}