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d77cae6720
Move the global PersistentParserState from the CompilerInstance to the source file that code completion is operating on, only hooking up the state when it's needed. This will help make it easier to requestify source file parsing.
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
//===--- PersistentParserState.h - Parser State -----------------*- 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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// Parser state persistent across multiple parses.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_PARSE_PERSISTENTPARSERSTATE_H
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#define SWIFT_PARSE_PERSISTENTPARSERSTATE_H
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#include "swift/Basic/SourceLoc.h"
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#include "swift/Parse/LocalContext.h"
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#include "swift/Parse/Scope.h"
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#include "llvm/ADT/DenseMap.h"
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namespace swift {
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class SourceFile;
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class DeclContext;
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class IterableDeclContext;
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enum class CodeCompletionDelayedDeclKind {
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TopLevelCodeDecl,
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Decl,
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FunctionBody,
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};
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class CodeCompletionDelayedDeclState {
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public:
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CodeCompletionDelayedDeclKind Kind;
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unsigned Flags;
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DeclContext *ParentContext;
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SavedScope Scope;
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unsigned StartOffset;
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unsigned EndOffset;
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unsigned PrevOffset;
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SavedScope takeScope() { return std::move(Scope); }
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CodeCompletionDelayedDeclState(CodeCompletionDelayedDeclKind Kind,
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unsigned Flags, DeclContext *ParentContext,
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SavedScope &&Scope, unsigned StartOffset,
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unsigned EndOffset, unsigned PrevOffset)
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: Kind(Kind), Flags(Flags), ParentContext(ParentContext),
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Scope(std::move(Scope)), StartOffset(StartOffset), EndOffset(EndOffset),
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PrevOffset(PrevOffset) {}
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};
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/// Parser state persistent across multiple parses.
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class PersistentParserState {
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swift::ScopeInfo ScopeInfo;
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std::unique_ptr<CodeCompletionDelayedDeclState> CodeCompletionDelayedDeclStat;
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/// The local context for all top-level code.
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TopLevelContext TopLevelCode;
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public:
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swift::ScopeInfo &getScopeInfo() { return ScopeInfo; }
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PersistentParserState();
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PersistentParserState(ASTContext &ctx) : PersistentParserState() { }
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~PersistentParserState();
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void setCodeCompletionDelayedDeclState(SourceManager &SM, unsigned BufferID,
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CodeCompletionDelayedDeclKind Kind,
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unsigned Flags,
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DeclContext *ParentContext,
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SourceRange BodyRange,
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SourceLoc PreviousLoc);
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void restoreCodeCompletionDelayedDeclState(
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const CodeCompletionDelayedDeclState &other);
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bool hasCodeCompletionDelayedDeclState() const {
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return CodeCompletionDelayedDeclStat.get() != nullptr;
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}
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CodeCompletionDelayedDeclState &getCodeCompletionDelayedDeclState() {
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return *CodeCompletionDelayedDeclStat.get();
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}
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const CodeCompletionDelayedDeclState &
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getCodeCompletionDelayedDeclState() const {
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return *CodeCompletionDelayedDeclStat.get();
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}
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std::unique_ptr<CodeCompletionDelayedDeclState>
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takeCodeCompletionDelayedDeclState() {
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assert(hasCodeCompletionDelayedDeclState());
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return std::move(CodeCompletionDelayedDeclStat);
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}
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TopLevelContext &getTopLevelContext() {
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return TopLevelCode;
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}
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};
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} // end namespace swift
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#endif
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