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Omit more parameter hints in the presence of underscores

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This commit is contained in:
Laurențiu Nicola 2020-04-18 10:53:48 +03:00
parent 179d983535
commit 8a51a74556
1 changed files with 10 additions and 1 deletions
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11
crates/ra_ide/src/inlay_hints.rs
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@ -237,7 +237,8 @@ fn should_show_param_hint(
) -> bool { ) -> bool {
if param_name.is_empty() if param_name.is_empty()
|| is_argument_similar_to_param(argument, param_name) || is_argument_similar_to_param(argument, param_name)
|| Some(param_name) == fn_signature.name.as_ref().map(String::as_str) || Some(param_name.trim_start_matches('_'))
== fn_signature.name.as_ref().map(|s| s.trim_start_matches('_'))
{ {
return false; return false;
} }
@ -255,6 +256,8 @@ fn should_show_param_hint(
fn is_argument_similar_to_param(argument: &ast::Expr, param_name: &str) -> bool { fn is_argument_similar_to_param(argument: &ast::Expr, param_name: &str) -> bool {
let argument_string = remove_ref(argument.clone()).syntax().to_string(); let argument_string = remove_ref(argument.clone()).syntax().to_string();
let param_name = param_name.trim_start_matches('_');
let argument_string = argument_string.trim_start_matches('_');
argument_string.starts_with(&param_name) || argument_string.ends_with(&param_name) argument_string.starts_with(&param_name) || argument_string.ends_with(&param_name)
} }
@ -1094,8 +1097,10 @@ struct Param {}
fn different_order(param: &Param) {} fn different_order(param: &Param) {}
fn different_order_mut(param: &mut Param) {} fn different_order_mut(param: &mut Param) {}
fn has_underscore(_param: bool) {}
fn twiddle(twiddle: bool) {} fn twiddle(twiddle: bool) {}
fn doo(_doo: bool) {}
fn main() { fn main() {
let container: TestVarContainer = TestVarContainer { test_var: 42 }; let container: TestVarContainer = TestVarContainer { test_var: 42 };
@ -1112,11 +1117,15 @@ fn main() {
test_processed.frob(false); test_processed.frob(false);
twiddle(true); twiddle(true);
doo(true);
let param_begin: Param = Param {}; let param_begin: Param = Param {};
different_order(&param_begin); different_order(&param_begin);
different_order(&mut param_begin); different_order(&mut param_begin);
let param: bool = true;
has_underscore(param);
let a: f64 = 7.0; let a: f64 = 7.0;
let b: f64 = 4.0; let b: f64 = 4.0;
let _: f64 = a.div_euclid(b); let _: f64 = a.div_euclid(b);