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Jon Ross-Perkins
b2cfd5a8a8
Building on #3311, which started moving the result string into a `unique_ptr`, instead have `StringLiteral` use a `BumpPtrAllocator` to manage memory. But also, detect when a string is really trivial during `Lex` and, if so, return `contents_` directly.
45 lines
1.3 KiB
C++
45 lines
1.3 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 <cstring>
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#include "common/check.h"
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#include "llvm/ADT/StringRef.h"
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#include "toolchain/diagnostics/null_diagnostics.h"
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#include "toolchain/lex/string_literal.h"
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namespace Carbon::Testing {
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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 = Lex::StringLiteral::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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if (!token->is_terminated()) {
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// Found errors while parsing.
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return 0;
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}
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fprintf(stderr, "valid: %d\n", token->is_terminated());
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fprintf(stderr, "size: %lu\n", token->text().size());
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fprintf(stderr, "text: %s\n", token->text().str().c_str());
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// Check multiline flag was computed correctly.
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CARBON_CHECK(token->is_multi_line() == token->text().contains('\n'));
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llvm::BumpPtrAllocator allocator;
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volatile auto value =
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token->ComputeValue(allocator, 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::Testing
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