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Auto merge of #31248 - ruud-v-a:fix-triple-ice, r=nrc

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This fixes #31238.

r? @michaelsproul
This commit is contained in:
bors 2016-01-29 17:52:26 +00:00
commit 0f196bcc3b
1 changed files with 18 additions and 14 deletions
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32
src/libsyntax/diagnostics/plugin.rs
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@ -168,20 +168,24 @@ pub fn expand_build_diagnostic_array<'cx>(ecx: &'cx mut ExtCtxt,
};
// Output error metadata to `tmp/extended-errors/<target arch>/<crate name>.json`
let target_triple = env::var("CFG_COMPILER_HOST_TRIPLE")
.ok().expect("unable to determine target arch from $CFG_COMPILER_HOST_TRIPLE");
with_registered_diagnostics(|diagnostics| {
if let Err(e) = output_metadata(ecx,
&target_triple,
&crate_name.name.as_str(),
&diagnostics) {
ecx.span_bug(span, &format!(
"error writing metadata for triple `{}` and crate `{}`, error: {}, cause: {:?}",
target_triple, crate_name, e.description(), e.cause()
));
}
});
if let Ok(target_triple) = env::var("CFG_COMPILER_HOST_TRIPLE") {
with_registered_diagnostics(|diagnostics| {
if let Err(e) = output_metadata(ecx,
&target_triple,
&crate_name.name.as_str(),
&diagnostics) {
ecx.span_bug(span, &format!(
"error writing metadata for triple `{}` and crate `{}`, error: {}, \
cause: {:?}",
target_triple, crate_name, e.description(), e.cause()
));
}
});
} else {
ecx.span_err(span, &format!(
"failed to write metadata for crate `{}` because $CFG_COMPILER_HOST_TRIPLE is not set",
crate_name));
}
// Construct the output expression.
let (count, expr) =