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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-PerkinsandGeoff Romer
4c4c4a4d2c
This adds a RawStringOstream. Versus TestRawOstream, which is
consolidated over to RawStringOstream, it uses a string for storage
instead of a vector, mainly to support move-to-string semantics. Versus
llvm::raw_string_ostream, it owns the string and supports pwrite (which
is needed for driver and its fd_ostream compatibility requirement).
This converts most uses of llvm::raw_string_ostream, leaving behind a
few in InstNamer that explicitly cannot own the string, such as:
```
llvm::raw_string_ostream(name)
<< "_" << tree.tokens().GetColumnNumber(token);
```
I have this as its own library so that it can use CHECK.
Yes this doesn't save much code, but it's code we repeatedly write.
---------
Co-authored-by: Geoff Romer <gromer@google.com>
59 lines
2.5 KiB
C++
59 lines
2.5 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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auto ImportCppFile(Context& context, SemIRLoc loc,
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> fs,
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llvm::StringRef file_path, llvm::StringRef code) -> void {
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RawStringOstream diagnostics_stream;
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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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code, {}, file_path, "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 `Cpp` import `{2}`:\n{3}",
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IntAsSelect, IntAsSelect, std::string, std::string);
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context.emitter().Emit(loc, CppInteropParseError, num_errors, num_warnings,
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file_path.str(), diagnostics_stream.TakeStr());
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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` import `{1}`:\n{2}",
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IntAsSelect, std::string, std::string);
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context.emitter().Emit(loc, CppInteropParseWarning, num_warnings,
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file_path.str(), diagnostics_stream.TakeStr());
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}
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}
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} // namespace Carbon::Check
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