Eric Salo
2 years ago
committed by
Copybara-Service
parent
d06eac7b5e
commit
21ecc29ed0
13 changed files with 141 additions and 38 deletions
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// Protocol Buffers - Google's data interchange format
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// Copyright 2023 Google LLC. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google LLC nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "upb/mini_table/compat.h" |
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#include "upb/base/descriptor_constants.h" |
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#include "upb/mini_table/field.h" |
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#include "upb/mini_table/message.h" |
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// Must be last.
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#include "upb/port/def.inc" |
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static bool upb_deep_check(const upb_MiniTable* src, const upb_MiniTable* dst, |
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bool eq) { |
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if (src->field_count != dst->field_count) return false; |
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for (int i = 0; i < src->field_count; i++) { |
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const upb_MiniTableField* src_field = &src->fields[i]; |
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const upb_MiniTableField* dst_field = |
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upb_MiniTable_FindFieldByNumber(dst, src_field->number); |
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if (upb_MiniTableField_CType(src_field) != |
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upb_MiniTableField_CType(dst_field)) return false; |
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if (src_field->mode != dst_field->mode) return false; |
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if (src_field->offset != dst_field->offset) return false; |
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if (src_field->presence != dst_field->presence) return false; |
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if (src_field->UPB_PRIVATE(submsg_index) != |
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dst_field->UPB_PRIVATE(submsg_index)) return false; |
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// Go no further if we are only checking for compatibility.
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if (!eq) continue; |
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if (upb_MiniTableField_CType(src_field) == kUpb_CType_Message) { |
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const upb_MiniTable* sub_src = |
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upb_MiniTable_GetSubMessageTable(src, src_field); |
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const upb_MiniTable* sub_dst = |
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upb_MiniTable_GetSubMessageTable(dst, dst_field); |
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if (sub_src != NULL && !upb_MiniTable_Equals(sub_src, sub_dst)) { |
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return false; |
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} |
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} |
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} |
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return true; |
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} |
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bool upb_MiniTable_Compatible(const upb_MiniTable* src, |
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const upb_MiniTable* dst) { |
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return upb_deep_check(src, dst, false); |
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} |
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bool upb_MiniTable_Equals(const upb_MiniTable* src, const upb_MiniTable* dst) { |
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return upb_deep_check(src, dst, true); |
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} |
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