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Jon Ross-Perkins
acbe6530c3
What this really does is avoids shadowing names, so that we can comfortable have things like `Check::DiagnosticEmitter` or `Check::DiagnosticLoc` without shadowing being a concern. Note, down this path I'm also thinking about: - Renaming misc DiagnosticConsumer/DiagnosticEmitter classes, possibly just to DiagnosticConsumer/DiagnosticEmitter (so `Check::DiagnosticEmitter` instead of `SemIRLocDiagnosticEmitter`). - Dropping `Diagnostic` from `Emitter::DiagnosticBuilder`. - But not for `Check::DiagnosticBuilder`, because `Check::Builder` would be ambiguous. - Renaming diagnostics/diagnostic_* to drop "diagnostic". [Discussion about SemIRLoc -> DiagnosticLoc](https://discord.com/channels/655572317891461132/655578254970716160/1353771570463768698) reminded me of this (in particular the older [Check::DiagnosticBuilder discussion](https://discord.com/channels/655572317891461132/655578254970716160/1344363562608627763)), but I'd only do that rename if there's matching consensus about a path forward where we keep SemIRLoc, and in a way that it's only ever used for diagnostics (the divergence from which is at the root of current LocId discussion). I'm trying to keep that separate from a namespace addition for clarity.
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 "testing/fuzzing/libfuzzer.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, 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, Diagnostics::NullEmitter<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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