33 lines
966 B
C
33 lines
966 B
C
|
/* go-interface-val-compare.c -- compare an interface to a value.
|
||
|
|
|
||
|
|
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 "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_value_compare (
|
||
|
|
struct __go_interface left,
|
||
|
|
const struct __go_type_descriptor *right_descriptor,
|
||
|
|
const void *val)
|
||
|
|
{
|
||
|
|
const struct __go_type_descriptor *left_descriptor;
|
||
|
|
|
||
|
|
if (left.__methods == NULL)
|
||
|
|
return 1;
|
||
|
|
left_descriptor = left.__methods[0];
|
||
|
|
if (!__go_type_descriptors_equal (left_descriptor, right_descriptor))
|
||
|
|
return 1;
|
||
|
|
if (__go_is_pointer_type (left_descriptor))
|
||
|
|
return left.__object == val ? 0 : 1;
|
||
|
|
if (!left_descriptor->__equalfn (left.__object, val,
|
||
|
|
left_descriptor->__size))
|
||
|
|
return 1;
|
||
|
|
return 0;
|
||
|
|
}
|