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72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
//===--- DiagnosticBridge.h - Diagnostic Bridge to SwiftSyntax --*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the DiagnosticBridge class, which bridges to swift-syntax
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// for diagnostics printing.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BASIC_DIAGNOSTICBRIDGE_H
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#define SWIFT_BASIC_DIAGNOSTICBRIDGE_H
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#include "swift/AST/DiagnosticConsumer.h"
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#include "swift/Basic/SourceManager.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/raw_ostream.h"
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namespace swift {
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/// Declare the bridge between swift-syntax and swift-frontend for diagnostics
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/// handling. The methods in this class should only be called when
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/// `SWIFT_BUILD_SWIFT_SYNTAX` is defined as they are otherwise undefined.
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class DiagnosticBridge {
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/// A queued up source file known to the queued diagnostics.
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using QueuedBuffer = void *;
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/// The queued diagnostics structure.
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void *queuedDiagnostics = nullptr;
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llvm::DenseMap<unsigned, QueuedBuffer> queuedBuffers;
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/// Source file syntax nodes cached by { source manager, buffer ID }.
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llvm::DenseMap<std::pair<SourceManager *, unsigned>, void *> sourceFileSyntax;
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public:
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/// Enqueue diagnostics.
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void enqueueDiagnostic(SourceManager &SM, const DiagnosticInfo &Info,
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unsigned innermostBufferID);
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/// Flush all enqueued diagnostics.
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void flush(llvm::raw_ostream &OS, bool includeTrailingBreak,
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bool forceColors);
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/// Retrieve the stack of source buffers from the provided location out to
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/// a physical source file, with source buffer IDs for each step along the way
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/// due to (e.g.) macro expansions or generated code.
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///
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/// The resulting vector will always contain valid source locations. If the
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/// initial location is invalid, the result will be empty.
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static SmallVector<unsigned, 1> getSourceBufferStack(SourceManager &sourceMgr,
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SourceLoc loc);
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DiagnosticBridge() = default;
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~DiagnosticBridge();
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private:
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/// Retrieve the SourceFileSyntax for the given buffer.
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void *getSourceFileSyntax(SourceManager &SM, unsigned bufferID,
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StringRef displayName);
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void queueBuffer(SourceManager &sourceMgr, unsigned bufferID);
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};
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} // namespace swift
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#endif
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