105 lines
2.1 KiB
Rust
105 lines
2.1 KiB
Rust
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//! Completes function abi strings.
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use syntax::{
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ast::{self, IsString},
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AstNode, AstToken,
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};
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use crate::{
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completions::Completions, context::CompletionContext, CompletionItem, CompletionItemKind,
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};
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// Most of these are feature gated, we should filter/add feature gate completions once we have them.
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const SUPPORTED_CALLING_CONVENTIONS: &[&str] = &[
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"Rust",
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"C",
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"C-unwind",
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"cdecl",
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"stdcall",
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"stdcall-unwind",
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"fastcall",
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"vectorcall",
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"thiscall",
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"thiscall-unwind",
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"aapcs",
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"win64",
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"sysv64",
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"ptx-kernel",
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"msp430-interrupt",
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"x86-interrupt",
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"amdgpu-kernel",
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"efiapi",
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"avr-interrupt",
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"avr-non-blocking-interrupt",
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"C-cmse-nonsecure-call",
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"wasm",
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"system",
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"system-unwind",
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"rust-intrinsic",
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"rust-call",
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"platform-intrinsic",
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"unadjusted",
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];
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pub(crate) fn complete_extern_abi(acc: &mut Completions, ctx: &CompletionContext) -> Option<()> {
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if ctx.token.parent().and_then(ast::Abi::cast).is_none() {
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return None;
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}
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let abi_str = ast::String::cast(ctx.token.clone())?;
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let source_range = abi_str.text_range_between_quotes()?;
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for &abi in SUPPORTED_CALLING_CONVENTIONS {
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CompletionItem::new(CompletionItemKind::Keyword, source_range, abi).add_to(acc);
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}
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Some(())
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}
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#[cfg(test)]
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mod tests {
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use expect_test::{expect, Expect};
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use crate::tests::{check_edit, completion_list_no_kw};
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fn check(ra_fixture: &str, expect: Expect) {
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let actual = completion_list_no_kw(ra_fixture);
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expect.assert_eq(&actual);
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}
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#[test]
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fn only_completes_in_string_literals() {
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check(
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r#"
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$0 fn foo {}
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"#,
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expect![[]],
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);
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}
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#[test]
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fn requires_extern_prefix() {
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check(
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r#"
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"$0" fn foo {}
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"#,
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expect![[]],
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);
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}
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#[test]
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fn works() {
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check(
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r#"
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extern "$0" fn foo {}
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"#,
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expect![[]],
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);
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check_edit(
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"Rust",
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r#"
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extern "$0" fn foo {}
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"#,
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r#"
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extern "Rust" fn foo {}
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"#,
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);
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}
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}
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