/* * Copyright (C) 2014 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ // FIXME: Investigate folding this into SourceCodeLocation proper so it can always be as lazy as possible. // Lazily compute the full SourceCodeLocation information only when such information is needed. // - raw information doesn't require initialization, we have that information // - formatted information does require initialization, done by overriding public APIs. // - display information does require initialization, done by overriding private funnel API resolveMappedLocation. WebInspector.LazySourceCodeLocation = class LazySourceCodeLocation extends WebInspector.SourceCodeLocation { constructor(sourceCode, lineNumber, columnNumber) { super(null, lineNumber, columnNumber); console.assert(sourceCode); this._initialized = false; this._lazySourceCode = sourceCode; } // Public isEqual(other) { if (!other) return false; return this._lazySourceCode === other._sourceCode && this._lineNumber === other._lineNumber && this._columnNumber === other._columnNumber; } get sourceCode() { return this._lazySourceCode; } set sourceCode(sourceCode) { // Getter and setter must be provided together. this.setSourceCode(sourceCode); } get formattedLineNumber() { this._lazyInitialization(); return this._formattedLineNumber; } get formattedColumnNumber() { this._lazyInitialization(); return this._formattedColumnNumber; } formattedPosition() { this._lazyInitialization(); return new WebInspector.SourceCodePosition(this._formattedLineNumber, this._formattedColumnNumber); } hasFormattedLocation() { this._lazyInitialization(); return super.hasFormattedLocation(); } hasDifferentDisplayLocation() { this._lazyInitialization(); return super.hasDifferentDisplayLocation(); } // Protected resolveMappedLocation() { this._lazyInitialization(); super.resolveMappedLocation(); } // Private _lazyInitialization() { if (!this._initialized) { this._initialized = true; this.sourceCode = this._lazySourceCode; } } };