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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libgo/] [runtime/] [go-type-interface.c] - Rev 783
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/* go-type-interface.c -- hash and equality interface 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 "interface.h" #include "go-type.h" /* A hash function for an interface. */ uintptr_t __go_type_hash_interface (const void *vval, uintptr_t key_size __attribute__ ((unused))) { const struct __go_interface *val; const struct __go_type_descriptor *descriptor; uintptr_t size; val = (const struct __go_interface *) vval; if (val->__methods == NULL) return 0; descriptor = (const struct __go_type_descriptor *) val->__methods[0]; size = descriptor->__size; if (__go_is_pointer_type (descriptor)) return descriptor->__hashfn (&val->__object, size); else return descriptor->__hashfn (val->__object, size); } /* An equality function for an interface. */ _Bool __go_type_equal_interface (const void *vv1, const void *vv2, uintptr_t key_size __attribute__ ((unused))) { const struct __go_interface *v1; const struct __go_interface *v2; const struct __go_type_descriptor* v1_descriptor; const struct __go_type_descriptor* v2_descriptor; v1 = (const struct __go_interface *) vv1; v2 = (const struct __go_interface *) vv2; if (v1->__methods == NULL || v2->__methods == NULL) return v1->__methods == v2->__methods; v1_descriptor = (const struct __go_type_descriptor *) v1->__methods[0]; v2_descriptor = (const struct __go_type_descriptor *) v2->__methods[0]; if (!__go_type_descriptors_equal (v1_descriptor, v2_descriptor)) return 0; if (__go_is_pointer_type (v1_descriptor)) return v1->__object == v2->__object; else return v1_descriptor->__equalfn (v1->__object, v2->__object, v1_descriptor->__size); }