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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-tidy-linelength
// We specify -Z incremental here because we want to test the partitioning for
// incremental compilation
// compile-flags:-Zprint-trans-items=lazy -Zincremental=tmp/partitioning-tests/vtable-through-const
// This test case makes sure, that references made through constants are
// recorded properly in the InliningMap.
mod mod1 {
pub trait Trait1 {
fn do_something(&self) {}
fn do_something_else(&self) {}
}
impl Trait1 for u32 {}
pub trait Trait1Gen<T> {
fn do_something(&self, x: T) -> T;
fn do_something_else(&self, x: T) -> T;
}
impl<T> Trait1Gen<T> for u32 {
fn do_something(&self, x: T) -> T { x }
fn do_something_else(&self, x: T) -> T { x }
}
fn id<T>(x: T) -> T { x }
// These are referenced, so they produce trans-items (see main())
pub const TRAIT1_REF: &'static Trait1 = &0u32 as &Trait1;
pub const TRAIT1_GEN_REF: &'static Trait1Gen<u8> = &0u32 as &Trait1Gen<u8>;
pub const ID_CHAR: fn(char) -> char = id::<char>;
pub trait Trait2 {
fn do_something(&self) {}
fn do_something_else(&self) {}
}
impl Trait2 for u32 {}
pub trait Trait2Gen<T> {
fn do_something(&self, x: T) -> T;
fn do_something_else(&self, x: T) -> T;
}
impl<T> Trait2Gen<T> for u32 {
fn do_something(&self, x: T) -> T { x }
fn do_something_else(&self, x: T) -> T { x }
}
// These are not referenced, so they do not produce trans-items
pub const TRAIT2_REF: &'static Trait2 = &0u32 as &Trait2;
pub const TRAIT2_GEN_REF: &'static Trait2Gen<u8> = &0u32 as &Trait2Gen<u8>;
pub const ID_I64: fn(i64) -> i64 = id::<i64>;
}
//~ TRANS_ITEM fn vtable_through_const::main[0] @@ vtable_through_const[External]
fn main() {
// Since Trait1::do_something() is instantiated via its default implementation,
// it is considered a generic and is instantiated here only because it is
// referenced in this module.
//~ TRANS_ITEM fn vtable_through_const::mod1[0]::Trait1[0]::do_something_else[0]<u32> @@ vtable_through_const[Internal]
// Although it is never used, Trait1::do_something_else() has to be
// instantiated locally here too, otherwise the <&u32 as &Trait1> vtable
// could not be fully constructed.
//~ TRANS_ITEM fn vtable_through_const::mod1[0]::Trait1[0]::do_something[0]<u32> @@ vtable_through_const[Internal]
mod1::TRAIT1_REF.do_something();
// Same as above
//~ TRANS_ITEM fn vtable_through_const::mod1[0]::{{impl}}[1]::do_something[0]<u8> @@ vtable_through_const[Internal]
//~ TRANS_ITEM fn vtable_through_const::mod1[0]::{{impl}}[1]::do_something_else[0]<u8> @@ vtable_through_const[Internal]
mod1::TRAIT1_GEN_REF.do_something(0u8);
//~ TRANS_ITEM fn vtable_through_const::mod1[0]::id[0]<char> @@ vtable_through_const[Internal]
mod1::ID_CHAR('x');
}
//~ TRANS_ITEM drop-glue i8
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