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auto merge of #16153 : kballard/rust/fix_gensym_symbols, r=luqmana

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When generating a unique symbol for things like closures or glue_drop,
we call token::gensym() to create a crate-unique Name. Recently, Name
changed its Show impl so it no longer prints as a number. This caused
symbols like glue_drop:1542 to become glue_drop:"glue_drop"(1542), or in
mangled form, glue_drop.$x22glue_drop$x22$LP$1542$RP$.
This commit is contained in:
bors 2014-08-01 11:31:05 +00:00
commit 51ff6c075a
1 changed files with 1 additions and 1 deletions
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src/librustc/middle/trans/common.rs
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@ -106,7 +106,7 @@ pub fn return_type_is_void(ccx: &CrateContext, ty: ty::t) -> bool {
/// Generates a unique symbol based off the name given. This is used to create
/// unique symbols for things like closures.
pub fn gensym_name(name: &str) -> PathElem {
let num = token::gensym(name);
let num = token::gensym(name).uint();
// use one colon which will get translated to a period by the mangler, and
// we're guaranteed that `num` is globally unique for this crate.
PathName(token::gensym(format!("{}:{}", name, num).as_slice()))