ide_completion/completions/attribute/
diagnostic.rs

1//! Completion for diagnostic attributes.
2
3use ide_db::SymbolKind;
4use syntax::ast;
5
6use crate::{CompletionItem, Completions, context::CompletionContext};
7
8use super::AttrCompletion;
9
10pub(super) fn complete_on_unimplemented(
11    acc: &mut Completions,
12    ctx: &CompletionContext<'_, '_>,
13    existing_keys: &[ast::Expr],
14) {
15    for attr in ATTRIBUTE_ARGS {
16        let already_annotated = existing_keys
17            .iter()
18            .filter_map(|expr| match expr {
19                ast::Expr::PathExpr(path) => path.path()?.as_single_name_ref(),
20                ast::Expr::BinExpr(bin)
21                    if bin.op_kind() == Some(ast::BinaryOp::Assignment { op: None }) =>
22                {
23                    match bin.lhs()? {
24                        ast::Expr::PathExpr(path) => path.path()?.as_single_name_ref(),
25                        _ => None,
26                    }
27                }
28                _ => None,
29            })
30            .any(|it| {
31                let text = it.text();
32                attr.key() == text && text != "note"
33            });
34        if already_annotated {
35            continue;
36        }
37
38        let mut item = CompletionItem::new(
39            SymbolKind::BuiltinAttr,
40            ctx.source_range(),
41            attr.label,
42            ctx.edition,
43        );
44        if let Some(lookup) = attr.lookup {
45            item.lookup_by(lookup);
46        }
47        if let Some((snippet, cap)) = attr.snippet.zip(ctx.config.snippet_cap) {
48            item.insert_snippet(cap, snippet);
49        }
50        item.add_to(acc, ctx.db);
51    }
52}
53
54const ATTRIBUTE_ARGS: &[AttrCompletion] = &[
55    super::attr(r#"label = "…""#, Some("label"), Some(r#"label = "${0:label}""#)),
56    super::attr(r#"message = "…""#, Some("message"), Some(r#"message = "${0:message}""#)),
57    super::attr(r#"note = "…""#, Some("note"), Some(r#"note = "${0:note}""#)),
58];
ide_completion/completions/attribute/diagnostic.rs

ide_completion/completions/attribute/
diagnostic.rs
