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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the copyright holder 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
// GEN_BUILD:CONDITION(tint_build_wgsl_reader && tint_build_wgsl_writer)
#include <string>
#include <unordered_set>
#include "src/tint/cmd/fuzz/wgsl/fuzz.h"
#include "src/tint/lang/wgsl/reader/parser/parser.h"
#include "src/tint/lang/wgsl/writer/writer.h"
namespace tint::program {
#define ASSERT_EQ(A, B) \
do { \
decltype(A) assert_a = (A); \
decltype(B) assert_b = (B); \
if (assert_a != assert_b) { \
TINT_ICE() << "ASSERT_EQ(" #A ", " #B ") failed:\n" \
<< #A << " was: " << assert_a << "\n" \
<< #B << " was: " << assert_b << "\n"; \
} \
} while (false)
#define ASSERT_TRUE(A) \
do { \
decltype(A) assert_a = (A); \
if (!assert_a) { \
TINT_ICE() << "ASSERT_TRUE(" #A ") failed:\n" << #A << " was: " << assert_a << "\n"; \
} \
} while (false)
void CloneContextFuzzer(const tint::Program& src) {
// Clone the src program to dst
tint::Program dst(src.Clone());
// Expect the printed strings to match
ASSERT_EQ(tint::Program::printer(src), tint::Program::printer(dst));
// Check that none of the AST nodes or type pointers in dst are found in src
std::unordered_set<const tint::ast::Node*> src_nodes;
for (auto* src_node : src.ASTNodes().Objects()) {
src_nodes.emplace(src_node);
}
std::unordered_set<const tint::core::type::Type*> src_types;
for (auto* src_type : src.Types()) {
src_types.emplace(src_type);
}
for (auto* dst_node : dst.ASTNodes().Objects()) {
ASSERT_EQ(src_nodes.count(dst_node), 0u);
}
for (auto* dst_type : dst.Types()) {
ASSERT_EQ(src_types.count(dst_type), 0u);
}
tint::wgsl::writer::Options wgsl_options;
auto src_wgsl = tint::wgsl::writer::Generate(src, wgsl_options);
ASSERT_TRUE(src_wgsl);
auto dst_wgsl = tint::wgsl::writer::Generate(dst, wgsl_options);
ASSERT_TRUE(dst_wgsl);
ASSERT_EQ(src_wgsl->wgsl, dst_wgsl->wgsl);
}
} // namespace tint::program
TINT_WGSL_PROGRAM_FUZZER(tint::program::CloneContextFuzzer);