| /******************************************************************************* |
| * Copyright (c) 2000, 2014 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.complete; |
| |
| /* |
| * Completion node build by the parser in any case it was intending to |
| * reduce an allocation expression containing the cursor. |
| * If the allocation expression is not qualified, the enclosingInstance field |
| * is null. |
| * e.g. |
| * |
| * class X { |
| * void foo() { |
| * new Bar(1, 2, [cursor] |
| * } |
| * } |
| * |
| * ---> class X { |
| * void foo() { |
| * <CompleteOnAllocationExpression:new Bar(1, 2)> |
| * } |
| * } |
| * |
| * The source range is always of length 0. |
| * The arguments of the allocation expression are all the arguments defined |
| * before the cursor. |
| */ |
| |
| import org.eclipse.jdt.internal.compiler.ast.*; |
| import org.eclipse.jdt.internal.compiler.lookup.*; |
| |
| public class CompletionOnQualifiedAllocationExpression extends QualifiedAllocationExpression { |
| @Override |
| public TypeBinding resolveType(BlockScope scope) { |
| this.argumentTypes = Binding.NO_PARAMETERS; |
| if (this.arguments != null) { |
| int argsLength = this.arguments.length; |
| int length = this.arguments.length; |
| this.argumentTypes = new TypeBinding[length]; |
| for (int a = argsLength; --a >= 0;) { |
| this.argumentTypes[a] = this.arguments[a].resolveType(scope); |
| } |
| } |
| final boolean isDiamond = this.type != null && (this.type.bits & ASTNode.IsDiamond) != 0; |
| if (this.enclosingInstance != null) { |
| TypeBinding enclosingType = this.enclosingInstance.resolveType(scope); |
| if (enclosingType == null) { |
| // try to propose something even if enclosing type cannot be resolved. |
| // Eg.: new Test<>().new Test<>(#cursor# |
| if (this.enclosingInstance instanceof AllocationExpression) { |
| TypeReference enclosingInstanceType = ((AllocationExpression) this.enclosingInstance).type; |
| if (enclosingInstanceType != null) { |
| enclosingType = enclosingInstanceType.resolvedType; |
| } |
| } |
| } |
| if (enclosingType == null || !(enclosingType instanceof ReferenceBinding)) { |
| throw new CompletionNodeFound(); |
| } |
| this.resolvedType = ((SingleTypeReference) this.type).resolveTypeEnclosing(scope, (ReferenceBinding) enclosingType); |
| if (isDiamond && (this.resolvedType instanceof ParameterizedTypeBinding)) { |
| TypeBinding [] inferredTypes = inferElidedTypes(scope); |
| if (inferredTypes != null) { |
| this.resolvedType = this.type.resolvedType = scope.environment().createParameterizedType(((ParameterizedTypeBinding) this.resolvedType).genericType(), inferredTypes, this.resolvedType.enclosingType()); |
| } else { |
| // inference failed. Resolved type will be of the form Test<> |
| this.bits |= ASTNode.IsDiamond; |
| } |
| } |
| if (!(this.resolvedType instanceof ReferenceBinding)) |
| throw new CompletionNodeFound(); // no need to continue if its an array or base type |
| if (this.resolvedType.isInterface()) // handle the anonymous class definition case |
| this.resolvedType = scope.getJavaLangObject(); |
| } else { |
| this.resolvedType = this.type.resolveType(scope, true /* check bounds*/); |
| if (isDiamond && (this.resolvedType instanceof ParameterizedTypeBinding)) { |
| TypeBinding [] inferredTypes = inferElidedTypes(scope); |
| if (inferredTypes != null) { |
| this.resolvedType = this.type.resolvedType = scope.environment().createParameterizedType(((ParameterizedTypeBinding) this.resolvedType).genericType(), inferredTypes, this.resolvedType.enclosingType()); |
| } else { |
| // inference failed. Resolved type will be of the form Test<> |
| this.bits |= ASTNode.IsDiamond; |
| } |
| } |
| if (!(this.resolvedType instanceof ReferenceBinding)) |
| throw new CompletionNodeFound(); // no need to continue if its an array or base type |
| } |
| |
| throw new CompletionNodeFound(this, this.resolvedType, scope); |
| } |
| @Override |
| public StringBuffer printExpression(int indent, StringBuffer output) { |
| if (this.enclosingInstance == null) |
| output.append("<CompleteOnAllocationExpression:" ); //$NON-NLS-1$ |
| else |
| output.append("<CompleteOnQualifiedAllocationExpression:"); //$NON-NLS-1$ |
| return super.printExpression(indent, output).append('>'); |
| } |
| } |