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remap-path-prefix: Validate number of commandline arguments passed.

This commit is contained in:
Michael Woerister 2017-04-25 10:59:29 +02:00
parent 39ffea31df
commit eb6308fc34
1 changed files with 17 additions and 0 deletions
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17
src/librustc/session/config.rs
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@ -1443,6 +1443,23 @@ pub fn build_session_options_and_crate_config(matches: &getopts::Matches)
output_types.insert(OutputType::Exe, None);
}
let remap_path_prefix_sources = debugging_opts.remap_path_prefix_from.len();
let remap_path_prefix_targets = debugging_opts.remap_path_prefix_from.len();
if remap_path_prefix_targets < remap_path_prefix_sources {
for source in &debugging_opts.remap_path_prefix_from[remap_path_prefix_targets..] {
early_error(error_format,
&format!("option `-Zremap-path-prefix-from='{}'` does not have \
a corresponding `-Zremap-path-prefix-to`", source))
}
} else if remap_path_prefix_targets > remap_path_prefix_sources {
for target in &debugging_opts.remap_path_prefix_to[remap_path_prefix_sources..] {
early_error(error_format,
&format!("option `-Zremap-path-prefix-to='{}'` does not have \
a corresponding `-Zremap-path-prefix-from`", target))
}
}
let mut cg = build_codegen_options(matches, error_format);
// Issue #30063: if user requests llvm-related output to one