mirror of https://github.com/rust-lang/rust
114 lines
2.6 KiB
Rust
114 lines
2.6 KiB
Rust
// This test case makes sure that two identical invocations of the compiler
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// (i.e., same code base, same compile-flags, same compiler-versions, etc.)
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// produce the same output. In the past, symbol names of monomorphized functions
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// were not deterministic (which we want to avoid).
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//
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// The test tries to exercise as many different paths into symbol name
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// generation as possible:
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//
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// - regular functions
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// - generic functions
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// - methods
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// - statics
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// - closures
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// - enum variant constructors
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// - tuple struct constructors
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// - drop glue
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// - FnOnce adapters
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// - Trait object shims
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// - Fn Pointer shims
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// ignore-tidy-linelength
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#![allow(dead_code, warnings)]
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extern crate reproducible_build_aux;
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static STATIC: i32 = 1234;
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pub struct Struct<T1, T2> {
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x: T1,
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y: T2,
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}
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fn regular_fn(_: i32) {}
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fn generic_fn<T1, T2>() {}
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impl<T1, T2> Drop for Struct<T1, T2> {
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fn drop(&mut self) {}
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}
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pub enum Enum {
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Variant1,
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Variant2(u32),
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Variant3 { x: u32 },
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}
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struct TupleStruct(i8, i16, i32, i64);
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impl TupleStruct {
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pub fn bar(&self) {}
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}
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trait Trait<T1, T2> {
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fn foo(&self);
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}
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impl Trait<i32, u64> for u64 {
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fn foo(&self) {}
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}
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impl reproducible_build_aux::Trait<char, String> for TupleStruct {
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fn foo(&self) {}
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}
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fn main() {
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regular_fn(STATIC);
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generic_fn::<u32, char>();
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generic_fn::<char, Struct<u32, u64>>();
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generic_fn::<Struct<u64, u32>, reproducible_build_aux::Struct<u32, u64>>();
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let dropped = Struct { x: "", y: 'a' };
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let _ = Enum::Variant1;
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let _ = Enum::Variant2(0);
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let _ = Enum::Variant3 { x: 0 };
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let _ = TupleStruct(1, 2, 3, 4);
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let closure = |x| x + 1i32;
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fn inner<F: Fn(i32) -> i32>(f: F) -> i32 {
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f(STATIC)
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}
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println!("{}", inner(closure));
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let object_shim: &Trait<i32, u64> = &0u64;
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object_shim.foo();
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fn with_fn_once_adapter<F: FnOnce(i32)>(f: F) {
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f(0);
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}
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with_fn_once_adapter(|_: i32| {});
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reproducible_build_aux::regular_fn(STATIC);
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reproducible_build_aux::generic_fn::<u32, char>();
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reproducible_build_aux::generic_fn::<char, Struct<u32, u64>>();
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reproducible_build_aux::generic_fn::<Struct<u64, u32>, reproducible_build_aux::Struct<u32, u64>>(
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);
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let _ = reproducible_build_aux::Enum::Variant1;
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let _ = reproducible_build_aux::Enum::Variant2(0);
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let _ = reproducible_build_aux::Enum::Variant3 { x: 0 };
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let _ = reproducible_build_aux::TupleStruct(1, 2, 3, 4);
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let object_shim: &reproducible_build_aux::Trait<char, String> = &TupleStruct(0, 1, 2, 3);
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object_shim.foo();
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let pointer_shim: &Fn(i32) = ®ular_fn;
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TupleStruct(1, 2, 3, 4).bar();
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}
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