Files
swift-mirror/lib/Parse/PersistentParserState.cpp
Dmitri Hrybenko 536723eca4 Code completion: implement delayed parsing of all (?) declarations
This allows us to show generic parameters in:
struct S<T> {
  func f(a: #^A^#
}

And show the type Z in:
struct S {
  func f(a: #^A^#
  typealias Z = Int
}


Swift SVN r7216
2013-08-13 23:53:39 +00:00

56 lines
2.3 KiB
C++

//===--- PersistentParserState.cpp - Parser State Implementation ----------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file implements parser state persistent across multiple parses.
//
//===----------------------------------------------------------------------===//
#include "swift/AST/Decl.h"
#include "swift/AST/Expr.h"
#include "swift/Parse/PersistentParserState.h"
using namespace swift;
void PersistentParserState::delayFunctionBodyParsing(FuncExpr *FE,
SourceRange BodyRange,
SourceLoc PreviousLoc) {
std::unique_ptr<FunctionBodyState> State;
State.reset(new FunctionBodyState(BodyRange, PreviousLoc,
ScopeInfo.saveCurrentScope()));
assert(DelayedBodies.find(FE) == DelayedBodies.end() &&
"Already recorded state for this body");
DelayedBodies[FE] = std::move(State);
}
std::unique_ptr<PersistentParserState::FunctionBodyState>
PersistentParserState::takeBodyState(FuncExpr *FE) {
assert(FE->getBodyKind() == FuncExpr::BodyKind::Unparsed);
DelayedBodiesTy::iterator I = DelayedBodies.find(FE);
assert(I != DelayedBodies.end() && "State should be saved");
std::unique_ptr<FunctionBodyState> State = std::move(I->second);
DelayedBodies.erase(I);
return State;
}
void PersistentParserState::delayDecl(DelayedDeclKind Kind,
unsigned Flags,
DeclContext *ParentContext,
SourceRange BodyRange,
SourceLoc PreviousLoc) {
assert(!CodeCompletionDelayedDeclState.get() &&
"only one decl can be delayed for code completion");
CodeCompletionDelayedDeclState.reset(new DelayedDeclState(
Kind, Flags, ParentContext, BodyRange, PreviousLoc,
ScopeInfo.saveCurrentScope()));
}