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/*
* Copyright © 2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans.
*
* 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.handlers;
import lombok.eclipse.EclipseASTAdapter;
import lombok.eclipse.EclipseASTVisitor;
import lombok.eclipse.EclipseNode;
import org.eclipse.jdt.internal.compiler.ast.ArrayInitializer;
import org.eclipse.jdt.internal.compiler.ast.ForeachStatement;
import org.eclipse.jdt.internal.compiler.ast.LocalDeclaration;
import org.eclipse.jdt.internal.compiler.ast.SingleTypeReference;
import org.mangosdk.spi.ProviderFor;
/*
* This class just handles 2 basic error cases. The real meat of eclipse 'val' support is in {@code EclipsePatcher}'s {@code patchHandleVal} method.
*/
@ProviderFor(EclipseASTVisitor.class)
public class HandleVal extends EclipseASTAdapter {
@Override public void visitLocal(EclipseNode localNode, LocalDeclaration local) {
if (local.type instanceof SingleTypeReference) {
char[] token = ((SingleTypeReference)local.type).token;
if (token == null || token.length != 3) return;
else if (token[0] != 'v' || token[1] != 'a' || token[2] != 'l') return;
boolean variableOfForEach = false;
if (localNode.directUp().get() instanceof ForeachStatement) {
ForeachStatement fs = (ForeachStatement) localNode.directUp().get();
variableOfForEach = fs.elementVariable == local;
}
if (local.initialization == null && !variableOfForEach) {
localNode.addError("'val' on a local variable requires an initializer expression");
}
if (local.initialization instanceof ArrayInitializer) {
localNode.addError("'val' is not compatible with array initializer expressions. Use the full form (new int[] { ... } instead of just { ... })");
}
}
}
}
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