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49aa0e966f
The "buffer ID" in a SourceFile, which is used to find the source file's contents in the SourceManager, has always been optional. However, the effectively every SourceFile actually does have a buffer ID, and the vast majority of accesses to this information dereference the optional without checking. Update the handful of call sites that provided `nullopt` as the buffer ID to provide a proper buffer instead. These were mostly unit tests and testing programs, with a few places that passed a never-empty optional through to the SourceFile constructor. Then, remove optionality from the representation and accessors. It is now the case that every SourceFile has a buffer ID, simplying a bunch of code.
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//===--- ASTMigratorPass.h --------------------------------------*- 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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// A base class for a syntactic migrator pass that uses the temporary
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// swift::migrator::EditorAdapter infrastructure.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_MIGRATOR_ASTMIGRATORPASS_H
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#define SWIFT_MIGRATOR_ASTMIGRATORPASS_H
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#include "swift/AST/ASTContext.h"
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#include "swift/AST/SourceFile.h"
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#include "swift/Migrator/EditorAdapter.h"
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namespace swift {
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class SourceManager;
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struct MigratorOptions;
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class DiagnosticEngine;
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namespace migrator {
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class ASTMigratorPass {
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protected:
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EditorAdapter &Editor;
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SourceFile *SF;
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const MigratorOptions &Opts;
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const StringRef Filename;
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const unsigned BufferID;
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SourceManager &SM;
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DiagnosticEngine &Diags;
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ASTMigratorPass(EditorAdapter &Editor, SourceFile *SF,
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const MigratorOptions &Opts)
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: Editor(Editor), SF(SF), Opts(Opts), Filename(SF->getFilename()),
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BufferID(SF->getBufferID()),
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SM(SF->getASTContext().SourceMgr), Diags(SF->getASTContext().Diags) {}
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};
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/// Run a general pass to migrate code based on SDK differences in the previous
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/// release.
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void runAPIDiffMigratorPass(EditorAdapter &Editor,
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SourceFile *SF,
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const MigratorOptions &Opts);
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/// Run a pass to fix up the new type of 'try?' in Swift 4
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void runOptionalTryMigratorPass(EditorAdapter &Editor,
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SourceFile *SF,
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const MigratorOptions &Opts);
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} // end namespace migrator
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} // end namespace swift
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#endif // SWIFT_MIGRATOR_ASTMIGRATORPASS_H
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