mirror of https://github.com/rust-lang/rust
107 lines
3.9 KiB
Rust
107 lines
3.9 KiB
Rust
// We specify incremental here because we want to test the partitioning for incremental compilation
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//@ incremental
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//@ compile-flags:-Zprint-mono-items=lazy
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//@ compile-flags:-Zinline-in-all-cgus
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// This test case makes sure, that references made through constants are
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// recorded properly in the InliningMap.
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#![feature(start)]
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mod mod1 {
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struct NeedsDrop;
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impl Drop for NeedsDrop {
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fn drop(&mut self) {}
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}
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pub trait Trait1 {
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fn do_something(&self) {}
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fn do_something_else(&self) {}
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}
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impl Trait1 for NeedsDrop {}
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pub trait Trait1Gen<T> {
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fn do_something(&self, x: T) -> T;
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fn do_something_else(&self, x: T) -> T;
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}
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impl<T> Trait1Gen<T> for NeedsDrop {
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fn do_something(&self, x: T) -> T {
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x
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}
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fn do_something_else(&self, x: T) -> T {
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x
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}
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}
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//~ MONO_ITEM fn mod1::id::<i64> @@ vtable_through_const-mod1.volatile[Internal]
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fn id<T>(x: T) -> T {
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x
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}
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// These are referenced, so they produce mono-items (see start())
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pub const TRAIT1_REF: &'static Trait1 = &NeedsDrop as &Trait1;
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pub const TRAIT1_GEN_REF: &'static Trait1Gen<u8> = &NeedsDrop as &Trait1Gen<u8>;
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pub const ID_CHAR: fn(char) -> char = id::<char>;
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pub trait Trait2 {
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fn do_something(&self) {}
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fn do_something_else(&self) {}
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}
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait2>::do_something @@ vtable_through_const-mod1.volatile[Internal]
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait2>::do_something_else @@ vtable_through_const-mod1.volatile[Internal]
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impl Trait2 for NeedsDrop {}
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pub trait Trait2Gen<T> {
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fn do_something(&self, x: T) -> T;
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fn do_something_else(&self, x: T) -> T;
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}
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impl<T> Trait2Gen<T> for NeedsDrop {
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fn do_something(&self, x: T) -> T {
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x
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}
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fn do_something_else(&self, x: T) -> T {
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x
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}
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}
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// These are not referenced, so they do not produce mono-items
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pub const TRAIT2_REF: &'static Trait2 = &NeedsDrop as &Trait2;
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pub const TRAIT2_GEN_REF: &'static Trait2Gen<u8> = &NeedsDrop as &Trait2Gen<u8>;
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pub const ID_I64: fn(i64) -> i64 = id::<i64>;
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}
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//~ MONO_ITEM fn start
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#[start]
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fn start(_: isize, _: *const *const u8) -> isize {
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//~ MONO_ITEM fn <mod1::NeedsDrop as std::ops::Drop>::drop @@ vtable_through_const-fallback.cgu[Internal]
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//~ MONO_ITEM fn std::ptr::drop_in_place::<mod1::NeedsDrop> - shim(Some(mod1::NeedsDrop)) @@ vtable_through_const-fallback.cgu[External]
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// Since Trait1::do_something() is instantiated via its default implementation,
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// it is considered a generic and is instantiated here only because it is
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// referenced in this module.
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait1>::do_something_else @@ vtable_through_const-mod1.volatile[External]
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// Although it is never used, Trait1::do_something_else() has to be
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// instantiated locally here too, otherwise the <&NeedsDrop as &Trait1> vtable
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// could not be fully constructed.
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait1>::do_something @@ vtable_through_const-mod1.volatile[External]
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mod1::TRAIT1_REF.do_something();
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// Same as above
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait1Gen<u8>>::do_something @@ vtable_through_const-mod1.volatile[External]
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait1Gen<u8>>::do_something_else @@ vtable_through_const-mod1.volatile[External]
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait2Gen<u8>>::do_something @@ vtable_through_const-mod1.volatile[Internal]
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//~ MONO_ITEM fn <mod1::NeedsDrop as mod1::Trait2Gen<u8>>::do_something_else @@ vtable_through_const-mod1.volatile[Internal]
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mod1::TRAIT1_GEN_REF.do_something(0u8);
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//~ MONO_ITEM fn mod1::id::<char> @@ vtable_through_const-mod1.volatile[External]
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mod1::ID_CHAR('x');
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0
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}
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