rust/crates/ide-diagnostics/src/handlers/expected_function.rs

40 lines
863 B
Rust

use hir::HirDisplay;
use crate::{Diagnostic, DiagnosticsContext};
// Diagnostic: expected-function
//
// This diagnostic is triggered if a call is made on something that is not callable.
pub(crate) fn expected_function(
ctx: &DiagnosticsContext<'_>,
d: &hir::ExpectedFunction,
) -> Diagnostic {
Diagnostic::new(
"expected-function",
format!("expected function, found {}", d.found.display(ctx.sema.db)),
ctx.sema.diagnostics_display_range(d.call.clone().map(|it| it.into())).range,
)
.experimental()
}
#[cfg(test)]
mod tests {
use crate::tests::check_diagnostics;
#[test]
fn smoke_test() {
check_diagnostics(
r#"
fn foo() {
let x = 3;
x();
// ^^^ error: expected function, found i32
""();
// ^^^^ error: expected function, found &str
foo();
}
"#,
);
}
}