| # Copyright 2022 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """Build rules to create cc_library that implements the InGrammar domain for a |
| given grammar from an ANTLRv4 grammar specification.""" |
| |
| def cc_fuzztest_grammar_library(name, srcs): |
| """Generates the C++ library corresponding to an antlr4 grammar specification. |
| |
| Args: |
| name: The name of the package to use for the cc_library. E.g., `json_grammar`. |
| srcs: The grammar specification files in ANTRLv4 format. E.g., `json.g4`. |
| """ |
| |
| output_file_name = name + ".h" |
| |
| native.genrule( |
| name = name + "_source", |
| srcs = srcs, |
| outs = [output_file_name], |
| cmd = "$(location //tools:grammar_domain_code_generator) " + |
| "--output_header_file_path " + |
| "$(@D)/" + output_file_name + " --input_grammar_files " + "$(SRCS)", |
| heuristic_label_expansion = False, |
| tools = ["//tools:grammar_domain_code_generator"], |
| ) |
| |
| native.cc_library( |
| name = name, |
| hdrs = [output_file_name], |
| deps = ["//fuzztest:domain"], |
| ) |