mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
b06fcc97f6
- Escape dumped token strings (what got me here) - Change the quoting from backticks to quotes - Also add a `FormatEscaped` helper function for this, updating other `.write_escaped` uses
83 lines
3.3 KiB
C++
83 lines
3.3 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 "toolchain/check/import_cpp.h"
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#include <memory>
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#include <string>
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#include "clang/Frontend/TextDiagnosticPrinter.h"
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#include "clang/Tooling/Tooling.h"
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#include "common/raw_string_ostream.h"
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#include "llvm/ADT/IntrusiveRefCntPtr.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/raw_ostream.h"
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#include "toolchain/check/context.h"
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#include "toolchain/check/diagnostic_helpers.h"
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#include "toolchain/diagnostics/diagnostic.h"
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#include "toolchain/diagnostics/format_providers.h"
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namespace Carbon::Check {
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// Generates C++ file contents to #include all requested imports.
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static auto GenerateCppIncludesHeaderCode(
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llvm::ArrayRef<std::pair<llvm::StringRef, SemIRLoc>> imports)
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-> std::string {
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std::string code;
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llvm::raw_string_ostream code_stream(code);
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for (const auto& [path, _] : imports) {
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code_stream << "#include \"" << FormatEscaped(path) << "\"\n";
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}
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return code;
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}
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auto ImportCppFiles(
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Context& context, llvm::StringRef importing_file_path,
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llvm::ArrayRef<std::pair<llvm::StringRef, SemIRLoc>> imports,
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> fs) -> void {
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size_t num_imports = imports.size();
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if (num_imports == 0) {
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return;
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}
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// TODO: Use all import locations by referring each Clang diagnostic to the
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// relevant import.
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SemIRLoc loc = imports.back().second;
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std::string diagnostics_str;
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llvm::raw_string_ostream diagnostics_stream(diagnostics_str);
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llvm::IntrusiveRefCntPtr<clang::DiagnosticOptions> diagnostic_options(
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new clang::DiagnosticOptions());
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clang::TextDiagnosticPrinter diagnostics_consumer(diagnostics_stream,
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diagnostic_options.get());
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// TODO: Share compilation flags with ClangRunner.
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auto ast = clang::tooling::buildASTFromCodeWithArgs(
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GenerateCppIncludesHeaderCode(imports), {},
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(importing_file_path + ".generated.cpp_imports.h").str(), "clang-tool",
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std::make_shared<clang::PCHContainerOperations>(),
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clang::tooling::getClangStripDependencyFileAdjuster(),
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clang::tooling::FileContentMappings(), &diagnostics_consumer, fs);
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// TODO: Implement and use a DynamicRecursiveASTVisitor to traverse the AST.
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int num_errors = diagnostics_consumer.getNumErrors();
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int num_warnings = diagnostics_consumer.getNumWarnings();
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if (num_errors > 0) {
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// TODO: Remove the warnings part when there are no warnings.
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CARBON_DIAGNOSTIC(
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CppInteropParseError, Error,
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"{0} error{0:s} and {1} warning{1:s} in {2} `Cpp` import{2:s}:\n{3}",
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IntAsSelect, IntAsSelect, IntAsSelect, std::string);
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context.emitter().Emit(loc, CppInteropParseError, num_errors, num_warnings,
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num_imports, diagnostics_str);
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} else if (num_warnings > 0) {
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CARBON_DIAGNOSTIC(CppInteropParseWarning, Warning,
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"{0} warning{0:s} in `Cpp` {1} import{1:s}:\n{2}",
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IntAsSelect, IntAsSelect, std::string);
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context.emitter().Emit(loc, CppInteropParseWarning, num_warnings,
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num_imports, diagnostics_str);
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}
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}
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} // namespace Carbon::Check
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