bjoernager/rust
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libsyntax: Remove the interner_get function and all uses

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Patrick Walton 2014-01-31 16:10:06 -08:00 • committed by Huon Wilson
parent a695b62118
commit e5dc347ccf
5 changed files with 13 additions and 34 deletions
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27
src/libsyntax/parse/token.rs
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@ -651,11 +651,6 @@ pub fn gensym(str : &str) -> Name {
interner.gensym(str)
}
// map an interned representation back to a string
pub fn interner_get(name : Name) -> @str {
get_ident_interner().get(name)
}
// maps a string to an identifier with an empty syntax context
pub fn str_to_ident(str : &str) -> ast::Ident {
ast::Ident::new(intern(str))
@ -679,28 +674,6 @@ pub fn fresh_name(src : &ast::Ident) -> Name {
gensym(format!("{}_{}",ident_to_str(src),num))*/
}
// it looks like there oughta be a str_ptr_eq fn, but no one bothered to implement it?
// determine whether two @str values are pointer-equal
pub fn str_ptr_eq(a : @str, b : @str) -> bool {
unsafe {
let p : uint = cast::transmute(a);
let q : uint = cast::transmute(b);
let result = p == q;
// got to transmute them back, to make sure the ref count is correct:
let _junk1 : @str = cast::transmute(p);
let _junk2 : @str = cast::transmute(q);
result
}
}
// return true when two identifiers refer (through the intern table) to the same ptr_eq
// string. This is used to compare identifiers in places where hygienic comparison is
// not wanted (i.e. not lexical vars).
pub fn ident_spelling_eq(a : &ast::Ident, b : &ast::Ident) -> bool {
str_ptr_eq(interner_get(a.name),interner_get(b.name))
}
// create a fresh mark.
pub fn fresh_mark() -> Mrk {
gensym("mark")