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Enable conditional checking of values in the Rust codebase

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This commit is contained in:
Loïc BRANSTETT 2022-03-08 16:29:41 +01:00
parent e3ea59ada5
commit 17397934d3
2 changed files with 15 additions and 1 deletions
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7
src/bootstrap/builder.rs
View File

@ -1101,7 +1101,12 @@ impl<'a> Builder<'a> {
// cargo.arg("-Zcheck-cfg-features");
// Enable cfg checking of rustc well-known names
rustflags.arg("-Zunstable-options").arg("--check-cfg=names()");
rustflags
.arg("-Zunstable-options")
// Enable checking of well known names
.arg("--check-cfg=names()")
// Enable checking of well known values
.arg("--check-cfg=values()");
// Add extra cfg not defined in rustc
for (restricted_mode, name, values) in EXTRA_CHECK_CFGS {

9
src/bootstrap/lib.rs
View File

@ -199,6 +199,15 @@ const EXTRA_CHECK_CFGS: &[(Option<Mode>, &'static str, Option<&[&'static str]>)]
(Some(Mode::Std), "no_global_oom_handling", None),
(Some(Mode::Std), "freebsd12", None),
(Some(Mode::Std), "backtrace_in_libstd", None),
/* Extra values not defined in the built-in targets yet, but used in std */
(Some(Mode::Std), "target_env", Some(&["libnx"])),
(Some(Mode::Std), "target_os", Some(&["watchos"])),
(
Some(Mode::Std),
"target_arch",
Some(&["asmjs", "spirv", "nvptx", "nvptx64", "le32", "xtensa"]),
),
/* Extra names used by dependencies */
// FIXME: Used by rustfmt is their test but is invalid (neither cargo nor bootstrap ever set
// this config) should probably by removed or use a allow attribute.
(Some(Mode::ToolRustc), "release", None),