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Add hover for closure

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hkalbasi 2023-04-30 14:31:43 +03:30
parent 370b72c7dd
commit 5df545b3f0
7 changed files with 249 additions and 7 deletions
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14
crates/ide/src/hover.rs
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@ -119,8 +119,8 @@ fn hover_simple(
| T![crate]
| T![Self]
| T![_] => 4,
// index and prefix ops
T!['['] | T![']'] | T![?] | T![*] | T![-] | T![!] => 3,
// index and prefix ops and closure pipe
T!['['] | T![']'] | T![?] | T![*] | T![-] | T![!] | T![|] => 3,
kind if kind.is_keyword() => 2,
T!['('] | T![')'] => 2,
kind if kind.is_trivia() => 0,
@ -219,6 +219,16 @@ fn hover_simple(
};
render::type_info_of(sema, config, &Either::Left(call_expr))
})
})
// try closure
.or_else(|| {
descended().find_map(|token| {
if token.kind() != T![|] {
return None;
}
let c = token.parent().and_then(|x| x.parent()).and_then(ast::ClosureExpr::cast)?;
render::closure_expr(sema, c)
})
});
result.map(|mut res: HoverResult| {