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Emit warnings for unused fields in custom targets.

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This commit is contained in:
Adam Bratschi-Kaye 2021-05-27 10:21:53 +02:00
parent 0ef2b4a29b
commit 88b01f1178
7 changed files with 235 additions and 91 deletions
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59
compiler/rustc_target/src/tests.rs Normal file
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@ -0,0 +1,59 @@
use crate::spec::Target;
use rustc_serialize::json::Json;
use std::str::FromStr;
#[test]
fn report_unused_fields() {
let json = Json::from_str(
r#"
{
"arch": "powerpc64",
"data-layout": "e-m:e-i64:64-n32:64",
"llvm-target": "powerpc64le-elf",
"target-pointer-width": "64",
"code-mode": "foo"
}
"#,
)
.unwrap();
let warnings = Target::from_json(json).unwrap().1;
assert_eq!(warnings.warning_messages().len(), 1);
assert!(warnings.warning_messages().join("\n").contains("code-mode"));
}
#[test]
fn report_incorrect_json_type() {
let json = Json::from_str(
r#"
{
"arch": "powerpc64",
"data-layout": "e-m:e-i64:64-n32:64",
"llvm-target": "powerpc64le-elf",
"target-pointer-width": "64",
"link-env-remove": "foo"
}
"#,
)
.unwrap();
let warnings = Target::from_json(json).unwrap().1;
assert_eq!(warnings.warning_messages().len(), 1);
assert!(warnings.warning_messages().join("\n").contains("link-env-remove"));
}
#[test]
fn no_warnings_for_valid_target() {
let json = Json::from_str(
r#"
{
"arch": "powerpc64",
"data-layout": "e-m:e-i64:64-n32:64",
"llvm-target": "powerpc64le-elf",
"target-pointer-width": "64",
"link-env-remove": ["foo"]
}
"#,
)
.unwrap();
let warnings = Target::from_json(json).unwrap().1;
assert_eq!(warnings.warning_messages().len(), 0);
}