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Rollup merge of rust-lang#37694 - michaelwoerister:test-if-ich, r=brson
ICH: Add test case for if- and if-let-expressions. r? @nikomatsakis
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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. | ||
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// This test case tests the incremental compilation hash (ICH) implementation | ||
// for if expressions. | ||
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// The general pattern followed here is: Change one thing between rev1 and rev2 | ||
// and make sure that the hash has changed, then change nothing between rev2 and | ||
// rev3 and make sure that the hash has not changed. | ||
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// must-compile-successfully | ||
// revisions: cfail1 cfail2 cfail3 | ||
// compile-flags: -Z query-dep-graph | ||
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#![allow(warnings)] | ||
#![feature(rustc_attrs)] | ||
#![crate_type="rlib"] | ||
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// Change condition (if) ------------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_condition(x: bool) -> u32 { | ||
if x { | ||
return 1 | ||
} | ||
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return 0 | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_condition(x: bool) -> u32 { | ||
if !x { | ||
return 1 | ||
} | ||
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return 0 | ||
} | ||
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// Change then branch (if) ----------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_then_branch(x: bool) -> u32 { | ||
if x { | ||
return 1 | ||
} | ||
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return 0 | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_then_branch(x: bool) -> u32 { | ||
if x { | ||
return 2 | ||
} | ||
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return 0 | ||
} | ||
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// Change else branch (if) ----------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_else_branch(x: bool) -> u32 { | ||
if x { | ||
1 | ||
} else { | ||
2 | ||
} | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_else_branch(x: bool) -> u32 { | ||
if x { | ||
1 | ||
} else { | ||
3 | ||
} | ||
} | ||
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// Add else branch (if) -------------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn add_else_branch(x: bool) -> u32 { | ||
let mut ret = 1; | ||
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if x { | ||
ret += 1; | ||
} | ||
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ret | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn add_else_branch(x: bool) -> u32 { | ||
let mut ret = 1; | ||
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if x { | ||
ret += 1; | ||
} else { | ||
} | ||
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ret | ||
} | ||
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// Change condition (if let) --------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_condition_if_let(x: Option<u32>) -> u32 { | ||
if let Some(_x) = x { | ||
return 1 | ||
} | ||
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0 | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_condition_if_let(x: Option<u32>) -> u32 { | ||
if let Some(_) = x { | ||
return 1 | ||
} | ||
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0 | ||
} | ||
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// Change then branch (if let) ------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_then_branch_if_let(x: Option<u32>) -> u32 { | ||
if let Some(x) = x { | ||
return x | ||
} | ||
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0 | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_then_branch_if_let(x: Option<u32>) -> u32 { | ||
if let Some(x) = x { | ||
return x + 1 | ||
} | ||
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0 | ||
} | ||
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// Change else branch (if let) ------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn change_else_branch_if_let(x: Option<u32>) -> u32 { | ||
if let Some(x) = x { | ||
x | ||
} else { | ||
1 | ||
} | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn change_else_branch_if_let(x: Option<u32>) -> u32 { | ||
if let Some(x) = x { | ||
x | ||
} else { | ||
2 | ||
} | ||
} | ||
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// Add else branch (if let) ---------------------------------------------------- | ||
#[cfg(cfail1)] | ||
pub fn add_else_branch_if_let(x: Option<u32>) -> u32 { | ||
let mut ret = 1; | ||
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if let Some(x) = x { | ||
ret += x; | ||
} | ||
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ret | ||
} | ||
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#[cfg(not(cfail1))] | ||
#[rustc_dirty(label="Hir", cfg="cfail2")] | ||
#[rustc_clean(label="Hir", cfg="cfail3")] | ||
#[rustc_metadata_dirty(cfg="cfail2")] | ||
#[rustc_metadata_clean(cfg="cfail3")] | ||
pub fn add_else_branch_if_let(x: Option<u32>) -> u32 { | ||
let mut ret = 1; | ||
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if let Some(x) = x { | ||
ret += x; | ||
} else { | ||
} | ||
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ret | ||
} |