mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 22:02:51 +01:00
Jon Meow
309ec35f95
Change generated with: ``` #!/usr/bin/bash -eux # Helper script for renaming pending work. # Run from the repo root. # Rename executable_semantics in code. sed -i 's/executable_semantics/explorer/g' \ $(git grep -l 'executable_semantics' . | grep -v proposals) sed -i 's/executable semantics/explorer/g' \ $(git grep -l 'executable semantics' . | grep -v proposals) sed -i 's/Executable semantics/Explorer/g' \ $(git grep -l 'Executable semantics' . | grep -v proposals) sed -i 's/Executable Semantics/Explorer/g' \ $(git grep -l 'Executable Semantics' . | grep -v proposals) sed -i 's/EXECUTABLE_SEMANTICS/EXPLORER/g' \ $(git grep -l 'EXECUTABLE_SEMANTICS' . | grep -v proposals) sed -i 's/ExecutableSemantics/Explorer/g' \ $(git grep -l 'ExecutableSemantics' . | grep -v proposals) sed -i 's/executable-semantics/explorer/g' \ $(git grep -l 'executable-semantics' . | grep -v proposals) # This is only needed for the initial move. mv executable_semantics explorer mv explorer/fuzzing/executable_semantics_fuzzer.cpp explorer/fuzzing/explorer_fuzzer.cpp ``` Verified with `bazel test ...`
57 lines
1.9 KiB
C++
57 lines
1.9 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 "explorer/fuzzing/fuzzer_util.h"
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#include "common/check.h"
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#include "common/fuzzing/proto_to_carbon.h"
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#include "explorer/interpreter/exec_program.h"
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#include "explorer/syntax/parse.h"
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#include "explorer/syntax/prelude.h"
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#include "llvm/Support/raw_ostream.h"
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namespace Carbon {
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// Appended to fuzzer-generated Carbon source when the source is missing
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// `Main()` definition, to prevent early error return in semantic analysis.
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static constexpr char EmptyMain[] = R"(
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fn Main() -> i32 {
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return 0;
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}
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)";
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auto ProtoToCarbonWithMain(const Fuzzing::CompilationUnit& compilation_unit)
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-> std::string {
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const bool has_main = std::any_of(
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compilation_unit.declarations().begin(),
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compilation_unit.declarations().end(),
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[](const Fuzzing::Declaration& decl) {
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return decl.kind_case() == Fuzzing::Declaration::kFunction &&
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decl.function().name() == "Main";
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});
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return Carbon::ProtoToCarbon(compilation_unit) + (has_main ? "" : EmptyMain);
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}
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void ParseAndExecute(const Fuzzing::CompilationUnit& compilation_unit) {
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const std::string source = ProtoToCarbonWithMain(compilation_unit);
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Arena arena;
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ErrorOr<AST> ast = ParseFromString(&arena, "Fuzzer.carbon", source,
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/*parser_debug=*/false);
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if (!ast.ok()) {
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llvm::errs() << "Parsing failed: " << ast.error().message() << "\n";
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return;
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}
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AddPrelude("explorer/data/prelude.carbon", &arena, &ast->declarations);
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const ErrorOr<int> result =
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ExecProgram(&arena, *ast, /*trace_stream=*/std::nullopt);
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if (!result.ok()) {
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llvm::errs() << "Execution failed: " << result.error().message() << "\n";
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return;
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}
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llvm::outs() << "Executed OK: " << *result << "\n";
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}
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} // namespace Carbon
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