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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
d1757d9979
Add simple mocking and testing of diagnostic emission to ensure this works.
38 lines
1.0 KiB
C++
38 lines
1.0 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <cstdint>
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#include <cstring>
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#include "diagnostics/diagnostic_emitter.h"
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#include "diagnostics/null_diagnostics.h"
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#include "lexer/string_literal.h"
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#include "llvm/ADT/StringRef.h"
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namespace Carbon {
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// NOLINTNEXTLINE: Match the documented fuzzer entry point declaration style.
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extern "C" int LLVMFuzzerTestOneInput(const unsigned char* data,
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std::size_t size) {
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auto token = LexedStringLiteral::Lex(
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llvm::StringRef(reinterpret_cast<const char*>(data), size));
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if (!token) {
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// Lexically not a string literal.
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return 0;
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}
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// Check multiline flag was computed correctly.
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if (token->IsMultiLine() != token->Text().contains('\n')) {
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__builtin_trap();
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}
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volatile auto value =
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token->ComputeValue(NullDiagnosticEmitter<const char*>());
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(void)value;
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return 0;
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}
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} // namespace Carbon
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