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Smart return completion

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This commit is contained in:
Aleksey Kladov 2018-08-28 21:14:13 +03:00
parent 2257c08cb1
commit d351ae67a9
1 changed files with 24 additions and 5 deletions
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29
crates/libeditor/src/completion.rs
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@ -75,9 +75,13 @@ fn complete_keywords(file: &File, fn_def: Option<ast::FnDef>, name_ref: ast::Nam
}
}
// if let Some(fn_def) = fn_def {
// acc.push(keyword("return", ""))
// }
if let Some(fn_def) = fn_def {
if fn_def.ret_type().is_some() {
acc.push(keyword("return", "return $0;"))
} else {
acc.push(keyword("return", "return;"))
}
}
fn keyword(kw: &str, snip: &str) -> CompletionItem {
CompletionItem {
@ -189,7 +193,8 @@ mod tests {
", r#"[CompletionItem { name: "if", snippet: Some("if $0 { }") },
CompletionItem { name: "match", snippet: Some("match $0 { }") },
CompletionItem { name: "while", snippet: Some("while $0 { }") },
CompletionItem { name: "loop", snippet: Some("loop {$0}") }]"#);
CompletionItem { name: "loop", snippet: Some("loop {$0}") },
CompletionItem { name: "return", snippet: Some("return;") }]"#);
}
#[test]
@ -205,6 +210,20 @@ mod tests {
CompletionItem { name: "while", snippet: Some("while $0 { }") },
CompletionItem { name: "loop", snippet: Some("loop {$0}") },
CompletionItem { name: "else", snippet: Some("else {$0}") },
CompletionItem { name: "else if", snippet: Some("else if $0 { }") }]"#);
CompletionItem { name: "else if", snippet: Some("else if $0 { }") },
CompletionItem { name: "return", snippet: Some("return;") }]"#);
}
#[test]
fn test_completion_return_value() {
check_snippet_completion(r"
fn quux() -> i32{
<|>
}
", r#"[CompletionItem { name: "if", snippet: Some("if $0 { }") },
CompletionItem { name: "match", snippet: Some("match $0 { }") },
CompletionItem { name: "while", snippet: Some("while $0 { }") },
CompletionItem { name: "loop", snippet: Some("loop {$0}") },
CompletionItem { name: "return", snippet: Some("return $0;") }]"#);
}
}