org.eclipse.jdt.internal.codeassist.select.SelectionOnMessageSend Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.codeassist.select;
/*
* Selection node build by the parser in any case it was intending to
* reduce a message send containing the cursor.
* e.g.
*
* class X {
* void foo() {
* this.[start]bar[end](1, 2)
* }
* }
*
* ---> class X {
* void foo() {
*
* }
* }
*
*/
import org.eclipse.jdt.internal.compiler.ast.MessageSend;
import org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.ProblemReasons;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
public class SelectionOnMessageSend extends MessageSend {
/*
* Cannot answer default abstract match, iterate in superinterfaces of declaring class
* for a better match (default abstract match came from scope lookups).
*/
private MethodBinding findNonDefaultAbstractMethod(MethodBinding methodBinding) {
ReferenceBinding[] itsInterfaces = methodBinding.declaringClass.superInterfaces();
if (itsInterfaces != Binding.NO_SUPERINTERFACES) {
ReferenceBinding[] interfacesToVisit = itsInterfaces;
int nextPosition = interfacesToVisit.length;
for (int i = 0; i < nextPosition; i++) {
ReferenceBinding currentType = interfacesToVisit[i];
MethodBinding[] methods = currentType.getMethods(methodBinding.selector);
if(methods != null) {
for (int k = 0; k < methods.length; k++) {
if(methodBinding.areParametersEqual(methods[k]))
return methods[k];
}
}
if ((itsInterfaces = currentType.superInterfaces()) != Binding.NO_SUPERINTERFACES) {
int itsLength = itsInterfaces.length;
if (nextPosition + itsLength >= interfacesToVisit.length)
System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
nextInterface : for (int a = 0; a < itsLength; a++) {
ReferenceBinding next = itsInterfaces[a];
for (int b = 0; b < nextPosition; b++)
if (TypeBinding.equalsEquals(next, interfacesToVisit[b])) continue nextInterface;
interfacesToVisit[nextPosition++] = next;
}
}
}
}
return methodBinding;
}
public StringBuffer printExpression(int indent, StringBuffer output) {
output.append(" 0) output.append(", "); //$NON-NLS-1$
this.arguments[i].printExpression(0, output);
}
}
return output.append(")>"); //$NON-NLS-1$
}
public TypeBinding resolveType(BlockScope scope) {
TypeBinding type = super.resolveType(scope);
if (type != null && type.isPolyType())
return type; // wait for more inference/resolution
// tolerate some error cases
if(this.binding == null ||
!(this.binding.isValidBinding() ||
this.binding.problemId() == ProblemReasons.NotVisible
|| this.binding.problemId() == ProblemReasons.InheritedNameHidesEnclosingName
|| this.binding.problemId() == ProblemReasons.NonStaticReferenceInConstructorInvocation
|| this.binding.problemId() == ProblemReasons.NonStaticReferenceInStaticContext)) {
throw new SelectionNodeFound();
} else {
if(this.binding.isDefaultAbstract()) {
throw new SelectionNodeFound(findNonDefaultAbstractMethod(this.binding)); // 23594
} else {
throw new SelectionNodeFound(this.binding);
}
}
}
}