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Correct format: ``` //===--- Name of file - Description ----------------------------*- Lang -*-===// ``` Notes: * Comment line should be exactly 80 chars. * Padding: Pad with dashes after "Description" to reach 80 chars. * "Name of file", "Description" and "Lang" are all optional. * In case of missing "Lang": drop the "-*-" markers. * In case of missing space: drop one, two or three dashes before "Name of file".
69 lines
2.4 KiB
C++
69 lines
2.4 KiB
C++
//===--- DelayedParsingCallbacks.h - Delayed parsing callbacks ------------===//
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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 - 2016 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_PARSE_DELAYED_PARSING_CALLBACKS_H
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#define SWIFT_PARSE_DELAYED_PARSING_CALLBACKS_H
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#include "swift/Basic/SourceLoc.h"
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#include "swift/Basic/SourceManager.h"
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#include "swift/Parse/Parser.h"
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namespace swift {
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class DeclAttributes;
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class AbstractFunctionDecl;
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/// \brief Callbacks for Parser's delayed parsing.
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class DelayedParsingCallbacks {
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virtual void anchor();
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public:
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virtual ~DelayedParsingCallbacks() = default;
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/// Checks if a function body should be delayed or skipped altogether.
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virtual bool shouldDelayFunctionBodyParsing(Parser &TheParser,
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AbstractFunctionDecl *AFD,
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const DeclAttributes &Attrs,
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SourceRange BodyRange) = 0;
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};
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class AlwaysDelayedCallbacks : public DelayedParsingCallbacks {
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bool shouldDelayFunctionBodyParsing(Parser &TheParser,
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AbstractFunctionDecl *AFD,
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const DeclAttributes &Attrs,
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SourceRange BodyRange) override {
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return true;
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}
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};
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/// \brief Implementation of callbacks that guide the parser in delayed
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/// parsing for code completion.
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class CodeCompleteDelayedCallbacks : public DelayedParsingCallbacks {
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SourceLoc CodeCompleteLoc;
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public:
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explicit CodeCompleteDelayedCallbacks(SourceLoc CodeCompleteLoc)
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: CodeCompleteLoc(CodeCompleteLoc) {
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}
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bool shouldDelayFunctionBodyParsing(Parser &TheParser,
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AbstractFunctionDecl *AFD,
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const DeclAttributes &Attrs,
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SourceRange BodyRange) override {
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// Delay parsing if the code completion point is in the function body.
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return TheParser.SourceMgr
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.rangeContainsTokenLoc(BodyRange, CodeCompleteLoc);
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}
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};
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} // namespace swift
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#endif
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