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Don't silently ignore invalid data in target spec

This commit is contained in:
Jethro Beekman 2018-07-13 10:14:16 -07:00
parent e5f6498d3d
commit 488472d754
2 changed files with 15 additions and 11 deletions
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24
src/librustc_target/spec/mod.rs
View File

@ -861,23 +861,27 @@ impl Target {
} );
($key_name:ident, link_args) => ( {
let name = (stringify!($key_name)).replace("_", "-");
if let Some(obj) = obj.find(&name[..]).and_then(|o| o.as_object()) {
if let Some(val) = obj.find(&name[..]) {
let obj = val.as_object().ok_or_else(|| format!("{}: expected a \
JSON object with fields per linker-flavor.", name))?;
let mut args = LinkArgs::new();
for (k, v) in obj {
let k = LinkerFlavor::from_str(&k).ok_or_else(|| {
let flavor = LinkerFlavor::from_str(&k).ok_or_else(|| {
format!("{}: '{}' is not a valid value for linker-flavor. \
Use 'em', 'gcc', 'ld' or 'msvc'", name, k)
})?;
let v = v.as_array().map(|a| {
a
.iter()
.filter_map(|o| o.as_string())
.map(|s| s.to_owned())
.collect::<Vec<_>>()
}).unwrap_or(vec![]);
let v = v.as_array().ok_or_else(||
format!("{}.{}: expected a JSON array", name, k)
)?.iter().enumerate()
.map(|(i,s)| {
let s = s.as_string().ok_or_else(||
format!("{}.{}[{}]: expected a JSON string", name, k, i))?;
Ok(s.to_owned())
})
.collect::<Result<Vec<_>, String>>()?;
args.insert(k, v);
args.insert(flavor, v);
}
base.options.$key_name = args;
}

2
src/test/run-make-fulldeps/target-specs/my-x86_64-unknown-linux-gnu-platform.json
View File

@ -1,5 +1,5 @@
{
"pre-link-args": ["-m64"],
"pre-link-args": {"gcc": ["-m64"]},
"data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
"linker-flavor": "gcc",
"llvm-target": "x86_64-unknown-linux-gnu",