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Jon Ross-Perkins
d12583fc08
I'm partly doing this because the current setup would be difficult to share with the toolchain. e.g., ProtoToCarbon isn't explorer-specific, but the only way to run it via CLI is the explorer's fuzzverter. I want a separate tool.
This change:
- Adds a //common/fuzzing:proto_to_carbon tool.
- The rest of fuzzverter is now just //explorer/fuzzing:ast_to_proto.
- The change simplifies overall handling and removes a LLVM CLI dependency.
- Stops allowing unknown fields in the proto.
- This has mostly led to forgetting to remove fuzzer inputs that were for removed features.
- Moves more non-explorer-specific bits to //common/fuzzing.
- Cleans up remaining pieces in //explorer/fuzzing
- Merges the //explorer/fuzzing proto tests, which deduplicates AstToString copies.
- These tests also had duplicate dependencies, etc -- and all complete in ~6s.
- Updates and fixes regen_corpus which was previously broken by other changes.
- Updates the README to reflect changes.
- Removes obsolete proto-fuzzer build configuration (AFAICT this is no longer needed).
28 lines
1.0 KiB
C++
28 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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#ifndef CARBON_COMMON_FUZZING_PROTO_TO_CARBON_H_
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#define CARBON_COMMON_FUZZING_PROTO_TO_CARBON_H_
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#include "common/error.h"
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#include "common/fuzzing/carbon.pb.h"
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namespace Carbon {
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// Builds a Carbon source from `compilation_unit`. The logic tries to produce a
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// syntactially valid Carbon source for all cases, even if the input protocol
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// buffer is invalid (like a variable declaration with an empty `name` field).
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// This is done to reduce the number of inputs the fuzzer framework generates
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// when trying to produce lexically valid source.
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auto ProtoToCarbon(const Fuzzing::Carbon& proto, bool maybe_add_main)
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-> std::string;
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// Parses the textproto into a proto object.
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auto ParseCarbonTextProto(const std::string& contents)
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-> ErrorOr<Fuzzing::Carbon>;
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} // namespace Carbon
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#endif // CARBON_COMMON_FUZZING_PROTO_TO_CARBON_H_
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