mirror of https://github.com/rust-lang/rust
39 lines
1.8 KiB
Rust
39 lines
1.8 KiB
Rust
// A SourceFile created during compilation may have a relative
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// path (e.g. if rustc itself is invoked with a relative path).
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// When we write out crate metadata, we convert all relative paths
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// to absolute paths using the current working directory.
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// However, the working directory was previously not included in the crate hash.
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// This meant that the crate metadata could change while the crate
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// hash remained the same. Among other problems, this could cause a
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// fingerprint mismatch ICE, since incremental compilation uses
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// the crate metadata hash to determine if a foreign query is green.
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// This test checks that we don't get an ICE when the working directory
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// (but not the build directory!) changes between compilation
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// sessions.
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// See https://github.com/rust-lang/rust/issues/85019
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//@ ignore-none
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// Reason: no-std is not supported
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//@ ignore-nvptx64-nvidia-cuda
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// FIXME: can't find crate for 'std'
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use run_make_support::{rfs, rust_lib_name, rustc};
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fn main() {
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rfs::create_dir("incr");
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rfs::create_dir("first_src");
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rfs::create_dir("output");
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rfs::rename("my_lib.rs", "first_src/my_lib.rs");
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rfs::rename("main.rs", "first_src/main.rs");
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// Build from "first_src"
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std::env::set_current_dir("first_src").unwrap();
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rustc().input("my_lib.rs").incremental("incr").crate_type("lib").run();
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rustc().input("main.rs").incremental("incr").extern_("my_lib", rust_lib_name("my_lib")).run();
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std::env::set_current_dir("..").unwrap();
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rfs::rename("first_src", "second_src");
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std::env::set_current_dir("second_src").unwrap();
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// Build from "second_src" - the output and incremental directory remain identical
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rustc().input("my_lib.rs").incremental("incr").crate_type("lib").run();
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rustc().input("main.rs").incremental("incr").extern_("my_lib", rust_lib_name("my_lib")).run();
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}
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