Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide_completion/src/render/function.rs')
| -rw-r--r-- | crates/ide_completion/src/render/function.rs | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/crates/ide_completion/src/render/function.rs b/crates/ide_completion/src/render/function.rs index 85014717d6..2031eef049 100644 --- a/crates/ide_completion/src/render/function.rs +++ b/crates/ide_completion/src/render/function.rs @@ -3,7 +3,7 @@ use hir::{db::HirDatabase, AsAssocItem, HirDisplay}; use ide_db::{SnippetCap, SymbolKind}; use itertools::Itertools; -use stdx::format_to; +use stdx::{format_to, to_lower_snake_case}; use syntax::SmolStr; use crate::{ @@ -135,7 +135,17 @@ pub(super) fn add_call_parens<'b>( let ref_ = ref_of_param(ctx, text, param.ty()); f(&format_args!("${{{}:{}{}}}", index + offset, ref_, text)) } - None => f(&format_args!("${{{}:_}}", index + offset,)), + None => { + let name = match param.ty().as_adt() { + None => "_".to_string(), + Some(adt) => adt + .name(ctx.db) + .as_text() + .map(|s| to_lower_snake_case(s.as_str())) + .unwrap_or_else(|| "_".to_string()), + }; + f(&format_args!("${{{}:{}}}", index + offset, name)) + } } }); match self_param { @@ -519,4 +529,37 @@ fn main() { "#, ); } + + #[test] + fn complete_pattern_args_with_type_name_if_adt() { + check_edit( + "qux", + r#" +struct Foo { + bar: i32 +} + +fn qux(Foo { bar }: Foo) { + println!("{}", bar); +} + +fn main() { + qu$0 +} +"#, + r#" +struct Foo { + bar: i32 +} + +fn qux(Foo { bar }: Foo) { + println!("{}", bar); +} + +fn main() { + qux(${1:foo})$0 +} +"#, + ); + } } |