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https://github.com/carbon-language/carbon-lang.git
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Richard SmithandDavid Blaikie
d5ec82e7ac
Defer creating the CppContext until we have all of its components, so that we know they're not null. Don't track the action on the context, since it's not a reliable way of getting back to the compiler invocation on failure. Don't flush the diagnostics emitter from the emitter destructor since the derived class emitter will already have been destroyed at that point. Distinguish between clang setup failing and clang merely producing errors, and don't connect the check context to clang if clang setup failed. --------- Co-authored-by: David Blaikie <dblaikie@gmail.com>
61 lines
1.9 KiB
C++
61 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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#ifndef CARBON_TOOLCHAIN_CHECK_CPP_CONTEXT_H_
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#define CARBON_TOOLCHAIN_CHECK_CPP_CONTEXT_H_
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#include <memory>
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#include "clang/Basic/SourceLocation.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/FrontendAction.h"
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#include "clang/Parse/Parser.h"
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#include "common/check.h"
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#include "llvm/ADT/SmallVector.h"
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namespace Carbon::Check {
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// Context for C++ code during check.
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//
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// This stores state for a Clang AST and Sema, as well as any additional
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// information needed to perform mapping between Carbon and C++ types,
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// declarations, and similar values.
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class CppContext {
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public:
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explicit CppContext(clang::CompilerInstance& instance,
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std::unique_ptr<clang::Parser> parser);
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~CppContext();
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auto ast_context() -> clang::ASTContext& { return *ast_context_; }
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auto sema() -> clang::Sema& { return *sema_; }
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auto parser() -> clang::Parser& { return *parser_; }
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auto clang_mangle_context() -> clang::MangleContext&;
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auto carbon_file_locations() -> llvm::SmallVector<clang::SourceLocation>& {
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return carbon_file_locations_;
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}
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private:
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// The Clang AST context.
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clang::ASTContext* ast_context_;
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// The Clang semantic analysis engine.
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clang::Sema* sema_;
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// The Clang parser.
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std::unique_ptr<clang::Parser> parser_;
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// Per-Carbon-file start locations for corresponding Clang source buffers.
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// Owned and managed by code in location.cpp.
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llvm::SmallVector<clang::SourceLocation> carbon_file_locations_;
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// The Clang mangle context for the target in the ASTContext.
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std::unique_ptr<clang::MangleContext> clang_mangle_context_;
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};
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_CPP_CONTEXT_H_
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