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/*
* Copyright (C) 2012 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.eclipse.agent;
public class PatchDiagnostics {
/**
*
* org.eclipse.jdt.core.dom.ASTNode#setSourceRange starts off doing some sanity checks on the input arguments, and, if these fail the sanity check,
* a {@code IllegalArgumentException} is thrown. However, these IAEs do not have any message and are thus pretty much useless. We do the exact same
* checks, and throw the exact same exception (thus, effectively, we don't change how eclipse operates), but, we <em>do</em> provide a useful message.
*/
public static boolean setSourceRangeCheck(Object astNode, int startPosition, int length) {
if (startPosition >= 0 && length < 0) {
throw new IllegalArgumentException("startPos = " + startPosition + " and length is " + length + ".\n" +
"This breaks the rule that lengths are not allowed to be negative. Affected Node:\n" + astNode);
}
if (startPosition < 0 && length != 0) {
throw new IllegalArgumentException("startPos = " + startPosition + " and length is " + length + ".\n" +
"This breaks the rule that length must be 0 if startPosition is negative. Affected Node:\n" + astNode);
}
return false;
}
}
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