ide_diagnostics/handlers/
unresolved_ident.rs

1use crate::{Diagnostic, DiagnosticCode, DiagnosticsContext};
2
3// Diagnostic: unresolved-ident
4//
5// This diagnostic is triggered if an expr-position ident is invalid.
6pub(crate) fn unresolved_ident(
7    ctx: &DiagnosticsContext<'_>,
8    d: &hir::UnresolvedIdent,
9) -> Diagnostic {
10    let mut range =
11        ctx.sema.diagnostics_display_range(d.node.map(|(node, _)| node.syntax_node_ptr()));
12    if let Some(in_node_range) = d.node.value.1 {
13        range.range = in_node_range + range.range.start();
14    }
15    Diagnostic::new(DiagnosticCode::RustcHardError("E0425"), "no such value in this scope", range)
16}
17
18#[cfg(test)]
19mod tests {
20    use crate::tests::check_diagnostics;
21
22    #[test]
23    fn feature() {
24        check_diagnostics(
25            r#"
26//- minicore: fmt
27fn main() {
28    format_args!("{unresolved}");
29                // ^^^^^^^^^^ error: no such value in this scope
30}
31"#,
32        )
33    }
34
35    #[test]
36    fn missing() {
37        check_diagnostics(
38            r#"
39fn main() {
40    let _ = x;
41          //^ error: no such value in this scope
42}
43"#,
44        );
45    }
46
47    #[test]
48    fn present() {
49        check_diagnostics(
50            r#"
51fn main() {
52    let x = 5;
53    let _ = x;
54}
55"#,
56        );
57    }
58
59    #[test]
60    fn unresolved_self_val() {
61        check_diagnostics(
62            r#"
63fn main() {
64    self.a;
65  //^^^^ error: no such value in this scope
66    let self:
67         self =
68            self;
69          //^^^^ error: no such value in this scope
70}
71"#,
72        );
73    }
74}
ide_diagnostics/handlers/unresolved_ident.rs

ide_diagnostics/handlers/
unresolved_ident.rs
