7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* go-reflect-map.c -- map reflection support for Go.
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Copyright 2009, 2010 The Go Authors. All rights reserved.
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file. */
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#include <stdlib.h>
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#include <stdint.h>
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#include "go-alloc.h"
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#include "go-type.h"
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#include "map.h"
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/* This file implements support for reflection on maps. These
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functions are called from reflect/value.go. */
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extern _Bool mapaccess (unsigned char *, unsigned char *, unsigned char *)
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asm ("libgo_reflect.reflect.mapaccess");
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_Bool
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mapaccess (unsigned char *m, unsigned char *key, unsigned char *val)
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{
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struct __go_map *map = (struct __go_map *) m;
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void *p;
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const struct __go_type_descriptor *val_descriptor;
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p = __go_map_index (map, key, 0);
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if (p == NULL)
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return 0;
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else
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{
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val_descriptor = map->__descriptor->__map_descriptor->__val_type;
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__builtin_memcpy (val, p, val_descriptor->__size);
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return 1;
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}
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}
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extern void mapassign (unsigned char *, unsigned char *, unsigned char *)
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asm ("libgo_reflect.reflect.mapassign");
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void
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mapassign (unsigned char *m, unsigned char *key, unsigned char *val)
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{
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struct __go_map *map = (struct __go_map *) m;
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if (val == NULL)
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__go_map_delete (map, key);
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else
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{
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void *p;
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const struct __go_type_descriptor *val_descriptor;
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p = __go_map_index (map, key, 1);
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val_descriptor = map->__descriptor->__map_descriptor->__val_type;
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__builtin_memcpy (p, val, val_descriptor->__size);
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}
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}
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extern int32_t maplen (unsigned char *)
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asm ("libgo_reflect.reflect.maplen");
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int32_t
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maplen (unsigned char *m __attribute__ ((unused)))
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{
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struct __go_map *map = (struct __go_map *) m;
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return (int32_t) map->__element_count;
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}
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extern unsigned char *mapiterinit (unsigned char *)
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asm ("libgo_reflect.reflect.mapiterinit");
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unsigned char *
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mapiterinit (unsigned char *m)
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{
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struct __go_hash_iter *it;
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it = __go_alloc (sizeof (struct __go_hash_iter));
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__go_mapiterinit ((struct __go_map *) m, it);
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return (unsigned char *) it;
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}
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extern void mapiternext (unsigned char *)
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asm ("libgo_reflect.reflect.mapiternext");
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void
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mapiternext (unsigned char *it)
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{
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__go_mapiternext ((struct __go_hash_iter *) it);
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}
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extern _Bool mapiterkey (unsigned char *, unsigned char *)
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asm ("libgo_reflect.reflect.mapiterkey");
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_Bool
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mapiterkey (unsigned char *ita, unsigned char *key)
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{
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struct __go_hash_iter *it = (struct __go_hash_iter *) ita;
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if (it->entry == NULL)
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return 0;
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else
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{
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__go_mapiter1 (it, key);
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return 1;
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}
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}
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/* Make a new map. We have to build our own map descriptor. */
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extern unsigned char *makemap (const struct __go_map_type *)
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asm ("libgo_reflect.reflect.makemap");
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unsigned char *
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makemap (const struct __go_map_type *t)
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{
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struct __go_map_descriptor *md;
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unsigned int o;
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const struct __go_type_descriptor *kt;
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const struct __go_type_descriptor *vt;
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/* FIXME: Reference count. */
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md = (struct __go_map_descriptor *) __go_alloc (sizeof (*md));
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md->__map_descriptor = t;
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o = sizeof (void *);
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kt = t->__key_type;
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o = (o + kt->__field_align - 1) & ~ (kt->__field_align - 1);
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md->__key_offset = o;
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o += kt->__size;
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vt = t->__val_type;
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o = (o + vt->__field_align - 1) & ~ (vt->__field_align - 1);
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md->__val_offset = o;
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o += vt->__size;
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o = (o + sizeof (void *) - 1) & ~ (sizeof (void *) - 1);
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o = (o + kt->__field_align - 1) & ~ (kt->__field_align - 1);
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o = (o + vt->__field_align - 1) & ~ (vt->__field_align - 1);
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md->__entry_size = o;
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return (unsigned char *) __go_new_map (md, 0);
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}
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