| /******************************************************************************* |
| * 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() { |
| * <SelectOnMessageSend:this.bar(1, 2)> |
| * } |
| * } |
| * |
| */ |
| |
| 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("<SelectOnMessageSend:"); //$NON-NLS-1$ |
| if (!this.receiver.isImplicitThis()) this.receiver.printExpression(0, output).append('.'); |
| output.append(this.selector).append('('); |
| if (this.arguments != null) { |
| for (int i = 0; i < this.arguments.length; i++) { |
| if (i > 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); |
| } |
| } |
| } |
| } |