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/*
* 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;
}
}
};
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