mirror of https://github.com/rust-lang/rust
39 lines
1.7 KiB
Rust
39 lines
1.7 KiB
Rust
// The --extern flag can override the default crate search of
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// the compiler and directly fetch a given path. There are a few rules
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// to follow: for example, there can't be more than one rlib, the crates must
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// be valid ("no-exist" in this test), and private crates can't be loaded
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// as non-private. This test checks that these rules are enforced.
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// See https://github.com/rust-lang/rust/pull/15319
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use run_make_support::{rust_lib_name, rustc};
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fn main() {
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rustc().input("bar.rs").crate_type("rlib").run();
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// Exactly the same rlib as the first line, only the filename changes.
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rustc().input("bar.rs").crate_type("rlib").extra_filename("-a").run();
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rustc().input("bar-alt.rs").crate_type("rlib").run();
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// The crate must be valid.
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rustc().input("foo.rs").extern_("bar", "no-exist").run_fail();
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rustc().input("foo.rs").extern_("bar", "foo.rs").run_fail();
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// Compilation fails with two different rlibs.
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rustc()
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.input("foo.rs")
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.extern_("bar", rust_lib_name("bar"))
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.extern_("bar", rust_lib_name("bar-alt"))
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.run_fail();
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// Even though this one has seemingly two rlibs, they are one and the same.
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rustc()
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.input("foo.rs")
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.extern_("bar", rust_lib_name("bar"))
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.extern_("bar", rust_lib_name("bar-a"))
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.run();
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rustc().input("foo.rs").extern_("bar", rust_lib_name("bar")).run();
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// Try to be sneaky and load a private crate from with a non-private name.
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rustc().input("rustc.rs").arg("-Zforce-unstable-if-unmarked").crate_type("rlib").run();
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rustc()
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.input("gated_unstable.rs")
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.extern_("alloc", rust_lib_name("rustc"))
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.run_fail()
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.assert_stderr_contains("rustc_private");
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}
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