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
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/* go-interface-compare.c -- compare two interface values.
|
|
|
|
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 <stddef.h>
|
|
|
|
#include "runtime.h"
|
|
#include "go-type.h"
|
|
#include "interface.h"
|
|
|
|
/* Compare two interface values. Return 0 for equal, not zero for not
|
|
equal (return value is like strcmp). */
|
|
|
|
int
|
|
__go_interface_compare (struct __go_interface left,
|
|
struct __go_interface right)
|
|
{
|
|
const struct __go_type_descriptor *left_descriptor;
|
|
|
|
if (left.__methods == NULL && right.__methods == NULL)
|
|
return 0;
|
|
if (left.__methods == NULL || right.__methods == NULL)
|
|
return 1;
|
|
left_descriptor = left.__methods[0];
|
|
if (!__go_type_descriptors_equal (left_descriptor, right.__methods[0]))
|
|
return 1;
|
|
if (__go_is_pointer_type (left_descriptor))
|
|
return left.__object == right.__object ? 0 : 1;
|
|
if (!__go_call_equalfn (left_descriptor->__equalfn, left.__object,
|
|
right.__object, left_descriptor->__size))
|
|
return 1;
|
|
return 0;
|
|
}
|