730f6d1425
Change the type descriptor hash and equal functions from C code pointers
to Go func values. This permits them to be set to a Go function
closure. This is in preparation for the Go 1.5, so that we can use a
closure for the hash/equal functions returned by the new reflect.ArrayOf
function.
Reviewed-on: https://go-review.googlesource.com/16485
From-SVN: r229541
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* go-type-string.c -- hash and equality string functions.
|
|
|
|
Copyright 2009 The Go Authors. All rights reserved.
|
|
Use of this source code is governed by a BSD-style
|
|
license that can be found in the LICENSE file. */
|
|
|
|
#include "runtime.h"
|
|
#include "go-type.h"
|
|
#include "go-string.h"
|
|
|
|
/* A string hash function for a map. */
|
|
|
|
uintptr_t
|
|
__go_type_hash_string (const void *vkey,
|
|
uintptr_t key_size __attribute__ ((unused)))
|
|
{
|
|
uintptr_t ret;
|
|
const String *key;
|
|
intgo len;
|
|
intgo i;
|
|
const byte *p;
|
|
|
|
ret = 5381;
|
|
key = (const String *) vkey;
|
|
len = key->len;
|
|
for (i = 0, p = key->str; i < len; i++, p++)
|
|
ret = ret * 33 + *p;
|
|
return ret;
|
|
}
|
|
|
|
const FuncVal __go_type_hash_string_descriptor =
|
|
{ (void *) __go_type_hash_string };
|
|
|
|
/* A string equality function for a map. */
|
|
|
|
_Bool
|
|
__go_type_equal_string (const void *vk1, const void *vk2,
|
|
uintptr_t key_size __attribute__ ((unused)))
|
|
{
|
|
const String *k1;
|
|
const String *k2;
|
|
|
|
k1 = (const String *) vk1;
|
|
k2 = (const String *) vk2;
|
|
return __go_ptr_strings_equal (k1, k2);
|
|
}
|
|
|
|
const FuncVal __go_type_equal_string_descriptor =
|
|
{ (void *) __go_type_equal_string };
|