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/*
* Copyright (c) 2009-2021, Google LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Google LLC nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "upb/reflection/def_builder_internal.h"
#include "upb/reflection/def_type.h"
#include "upb/reflection/enum_def_internal.h"
#include "upb/reflection/enum_value_def_internal.h"
#include "upb/reflection/file_def_internal.h"
// Must be last.
#include "upb/port/def.inc"
struct upb_EnumValueDef {
const UPB_DESC(EnumValueOptions) * opts;
const upb_EnumDef* parent;
const char* full_name;
int32_t number;
};
upb_EnumValueDef* _upb_EnumValueDef_At(const upb_EnumValueDef* v, int i) {
return (upb_EnumValueDef*)&v[i];
}
static int _upb_EnumValueDef_Compare(const void* p1, const void* p2) {
const uint32_t v1 = (*(const upb_EnumValueDef**)p1)->number;
const uint32_t v2 = (*(const upb_EnumValueDef**)p2)->number;
return (v1 < v2) ? -1 : (v1 > v2);
}
const upb_EnumValueDef** _upb_EnumValueDefs_Sorted(const upb_EnumValueDef* v,
int n, upb_Arena* a) {
// TODO: Try to replace this arena alloc with a persistent scratch buffer.
upb_EnumValueDef** out =
(upb_EnumValueDef**)upb_Arena_Malloc(a, n * sizeof(void*));
if (!out) return NULL;
for (int i = 0; i < n; i++) {
out[i] = (upb_EnumValueDef*)&v[i];
}
qsort(out, n, sizeof(void*), _upb_EnumValueDef_Compare);
return (const upb_EnumValueDef**)out;
}
const UPB_DESC(EnumValueOptions) *
upb_EnumValueDef_Options(const upb_EnumValueDef* v) {
return v->opts;
}
bool upb_EnumValueDef_HasOptions(const upb_EnumValueDef* v) {
return v->opts != (void*)kUpbDefOptDefault;
}
const upb_EnumDef* upb_EnumValueDef_Enum(const upb_EnumValueDef* v) {
return v->parent;
}
const char* upb_EnumValueDef_FullName(const upb_EnumValueDef* v) {
return v->full_name;
}
const char* upb_EnumValueDef_Name(const upb_EnumValueDef* v) {
return _upb_DefBuilder_FullToShort(v->full_name);
}
int32_t upb_EnumValueDef_Number(const upb_EnumValueDef* v) { return v->number; }
uint32_t upb_EnumValueDef_Index(const upb_EnumValueDef* v) {
// Compute index in our parent's array.
return v - upb_EnumDef_Value(v->parent, 0);
}
static void create_enumvaldef(upb_DefBuilder* ctx, const char* prefix,
const UPB_DESC(EnumValueDescriptorProto) *
val_proto,
upb_EnumDef* e, upb_EnumValueDef* v) {
upb_StringView name = UPB_DESC(EnumValueDescriptorProto_name)(val_proto);
v->parent = e; // Must happen prior to _upb_DefBuilder_Add()
v->full_name = _upb_DefBuilder_MakeFullName(ctx, prefix, name);
v->number = UPB_DESC(EnumValueDescriptorProto_number)(val_proto);
_upb_DefBuilder_Add(ctx, v->full_name,
_upb_DefType_Pack(v, UPB_DEFTYPE_ENUMVAL));
UPB_DEF_SET_OPTIONS(v->opts, EnumValueDescriptorProto, EnumValueOptions,
val_proto);
bool ok = _upb_EnumDef_Insert(e, v, ctx->arena);
if (!ok) _upb_DefBuilder_OomErr(ctx);
}
// Allocate and initialize an array of |n| enum value defs owned by |e|.
upb_EnumValueDef* _upb_EnumValueDefs_New(
upb_DefBuilder* ctx, const char* prefix, int n,
const UPB_DESC(EnumValueDescriptorProto) * const* protos, upb_EnumDef* e,
bool* is_sorted) {
_upb_DefType_CheckPadding(sizeof(upb_EnumValueDef));
upb_EnumValueDef* v =
_upb_DefBuilder_Alloc(ctx, sizeof(upb_EnumValueDef) * n);
*is_sorted = true;
uint32_t previous = 0;
for (size_t i = 0; i < n; i++) {
create_enumvaldef(ctx, prefix, protos[i], e, &v[i]);
const uint32_t current = v[i].number;
if (previous > current) *is_sorted = false;
previous = current;
}
if (upb_FileDef_Syntax(ctx->file) == kUpb_Syntax_Proto3 && n > 0 &&
v[0].number != 0) {
_upb_DefBuilder_Errf(ctx,
"for proto3, the first enum value must be zero (%s)",
upb_EnumDef_FullName(e));
}
return v;
}
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