bundles/org.eclipse.wst.jsdt.core/src/org/eclipse/wst/jsdt/core/dom/RecoveredTypeBinding.java - jsdt/webtools.jsdt.core - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007, 2008 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.wst.jsdt.core.dom;

 import java.util.List;

 import org.eclipse.wst.jsdt.core.IJavaScriptElement;
 import org.eclipse.wst.jsdt.core.JavaScriptModelException;
 import org.eclipse.wst.jsdt.internal.compiler.lookup.ArrayBinding;
 import org.eclipse.wst.jsdt.internal.compiler.lookup.CompilationUnitScope;
 import org.eclipse.wst.jsdt.internal.compiler.util.Util;
 import org.eclipse.wst.jsdt.internal.core.CompilationUnit;

 /**
  * This class represents the recovered binding for a type
  *
  * Provisional API: This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  */
 class RecoveredTypeBinding implements ITypeBinding {

 	private VariableDeclaration variableDeclaration;
 	private Type currentType;
 	private BindingResolver resolver;
 	private int dimensions;
 	private RecoveredTypeBinding innerTypeBinding;
 	private ITypeBinding[] typeArguments;
 	private org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding referenceBinding;

 	RecoveredTypeBinding(BindingResolver resolver, VariableDeclaration variableDeclaration) {
 		this.variableDeclaration = variableDeclaration;
 		this.resolver = resolver;
 		this.currentType = getType();
 		this.dimensions = variableDeclaration.getExtraDimensions();
 		if (this.currentType.isArrayType()) {
 			this.dimensions += ((ArrayType) this.currentType).getDimensions();
 		}
 	}

 	RecoveredTypeBinding(BindingResolver resolver, org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding referenceBinding) {
 		this.resolver = resolver;
 		this.dimensions = referenceBinding.dimensions();
 		this.referenceBinding = referenceBinding;
 	}

 	RecoveredTypeBinding(BindingResolver resolver, Type type) {
 		this.currentType = type;
 		this.resolver = resolver;
 		this.dimensions = 0;
 		if (type.isArrayType()) {
 			this.dimensions += ((ArrayType) type).getDimensions();
 		}
 	}

 	RecoveredTypeBinding(BindingResolver resolver, RecoveredTypeBinding typeBinding, int dimensions) {
 		this.innerTypeBinding = typeBinding;
 		this.dimensions = typeBinding.getDimensions() + dimensions;
 		this.resolver = resolver;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#createArrayType(int)
 	 */
 	public ITypeBinding createArrayType(int dims) {
 		return this.resolver.getTypeBinding(this, dims);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getBinaryName()
 	 */
 	public String getBinaryName() {
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getBound()
 	 */
 	public ITypeBinding getBound() {
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getComponentType()
 	 */
 	public ITypeBinding getComponentType() {
 		if (this.dimensions == 0) return null;
 		return this.resolver.getTypeBinding(this, -1);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredFields()
 	 */
 	public IVariableBinding[] getDeclaredFields() {
 		return TypeBinding.NO_VARIABLE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredMethods()
 	 */
 	public IFunctionBinding[] getDeclaredMethods() {
 		return TypeBinding.NO_METHOD_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredModifiers()
 	 */
 	public int getDeclaredModifiers() {
 		return 0;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredTypes()
 	 */
 	public ITypeBinding[] getDeclaredTypes() {
 		return TypeBinding.NO_TYPE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaringClass()
 	 */
 	public ITypeBinding getDeclaringClass() {
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaringMethod()
 	 */
 	public IFunctionBinding getDeclaringMethod() {
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDimensions()
 	 */
 	public int getDimensions() {
 		return this.dimensions;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getElementType()
 	 */
 	public ITypeBinding getElementType() {
 		if (this.referenceBinding != null) {
 			if (this.referenceBinding.isArrayType()) {
 				ArrayBinding arrayBinding = (ArrayBinding) this.referenceBinding;
 				return new RecoveredTypeBinding(this.resolver, arrayBinding.leafComponentType);
 			} else {
 				return new RecoveredTypeBinding(this.resolver, this.referenceBinding);
 			}
 		}
 		if (this.innerTypeBinding != null) {
 			return this.innerTypeBinding.getElementType();
 		}
 		if (this.currentType!= null && this.currentType.isArrayType()) {
 			return this.resolver.getTypeBinding(((ArrayType) this.currentType).getElementType());
 		}
 		if (this.variableDeclaration != null && this.variableDeclaration.getExtraDimensions() != 0) {
 			return this.resolver.getTypeBinding(getType());
 		}
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getErasure()
 	 */
 	public ITypeBinding getErasure() {
 		return this;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getInterfaces()
 	 */
 	public ITypeBinding[] getInterfaces() {
 		return TypeBinding.NO_TYPE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getModifiers()
 	 */
 	public int getModifiers() {
 		return Modifier.NONE;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getName()
 	 */
 	public String getName() {
 		char[] brackets = new char[this.dimensions * 2];
 		for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
 			brackets[i] = ']';
 			brackets[i - 1] = '[';
 		}
 		StringBuffer buffer = new StringBuffer(this.getInternalName());
 		buffer.append(brackets);
 		return String.valueOf(buffer);
 	}

 	private String getInternalName() {
 		if (this.innerTypeBinding != null) {
 			return this.innerTypeBinding.getInternalName();
 		} else if (this.referenceBinding != null) {
 			org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding typeBinding = null;
 			if (this.referenceBinding.isArrayType()) {
 				ArrayBinding arrayBinding = (ArrayBinding) this.referenceBinding;
 				if (arrayBinding.leafComponentType instanceof org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) {
 					typeBinding = (org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) arrayBinding.leafComponentType;
 				}
 			} else if (this.referenceBinding instanceof org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) {
 				typeBinding = (org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) this.referenceBinding;
 			}
 			return new String(typeBinding.compoundName[typeBinding.compoundName.length - 1]);
 		}
 		return this.getTypeNameFrom(getType());
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getPackage()
 	 */
 	public IPackageBinding getPackage() {
 		CompilationUnitScope scope = this.resolver.scope();
 		if (scope != null) {
 			return this.resolver.getPackageBinding(scope.getCurrentPackage());
 		}
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getQualifiedName()
 	 */
 	public String getQualifiedName() {
 		return this.getName();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getSuperclass()
 	 */
 	public ITypeBinding getSuperclass() {
 		return this.resolver.resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeArguments()
 	 */
 	public ITypeBinding[] getTypeArguments() {
 		if (this.referenceBinding != null) {
 			return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
 		}
 		if (this.typeArguments != null) {
 			return typeArguments;
 		}

 		if (this.innerTypeBinding != null) {
 			return this.innerTypeBinding.getTypeArguments();
 		}

 		if (this.currentType.isParameterizedType()) {
 			ParameterizedType parameterizedType = (ParameterizedType) this.currentType;
 			List typeArgumentsList = parameterizedType.typeArguments();
 			int size = typeArgumentsList.size();
 			ITypeBinding[] temp = new ITypeBinding[size];
 			for (int i = 0; i < size; i++) {
 				ITypeBinding currentTypeBinding = ((Type) typeArgumentsList.get(i)).resolveBinding();
 				if (currentTypeBinding == null) {
 					return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
 				}
 				temp[i] = currentTypeBinding;
 			}
 			return this.typeArguments = temp;
 		}
 		return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeBounds()
 	 */
 	public ITypeBinding[] getTypeBounds() {
 		return TypeBinding.NO_TYPE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeDeclaration()
 	 */
 	public ITypeBinding getTypeDeclaration() {
 		return this;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeParameters()
 	 */
 	public ITypeBinding[] getTypeParameters() {
 		return TypeBinding.NO_TYPE_BINDINGS;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getWildcard()
 	 */
 	public ITypeBinding getWildcard() {
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAnnotation()
 	 */
 	public boolean isAnnotation() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAnonymous()
 	 */
 	public boolean isAnonymous() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isArray()
 	 */
 	public boolean isArray() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAssignmentCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
 	 */
 	public boolean isAssignmentCompatible(ITypeBinding typeBinding) {
 		if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
 			return true;
 		}
 		// since recovered binding are not unique isEqualTo is required
 		return this.isEqualTo(typeBinding);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isCapture()
 	 */
 	public boolean isCapture() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isCastCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
 	 */
 	public boolean isCastCompatible(ITypeBinding typeBinding) {
 		if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
 			return true;
 		}
 		// since recovered binding are not unique isEqualTo is required
 		return this.isEqualTo(typeBinding);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isClass()
 	 */
 	public boolean isClass() {
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isEnum()
 	 */
 	public boolean isEnum() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isFromSource()
 	 */
 	public boolean isFromSource() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isGenericType()
 	 */
 	public boolean isGenericType() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isInterface()
 	 */
 	public boolean isInterface() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isLocal()
 	 */
 	public boolean isLocal() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isMember()
 	 */
 	public boolean isMember() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isNested()
 	 */
 	public boolean isNested() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isNullType()
 	 */
 	public boolean isNullType() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isParameterizedType()
 	 */
 	public boolean isParameterizedType() {
 		if (this.innerTypeBinding != null) {
 			return this.innerTypeBinding.isParameterizedType();
 		}
 		if (this.currentType != null) {
 			return this.currentType.isParameterizedType();
 		}
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isPrimitive()
 	 */
 	public boolean isPrimitive() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isRawType()
 	 */
 	public boolean isRawType() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isSubTypeCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
 	 */
 	public boolean isSubTypeCompatible(ITypeBinding typeBinding) {
 		if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
 			return true;
 		}
 		// since recovered binding are not unique isEqualTo is required
 		return this.isEqualTo(typeBinding);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isTopLevel()
 	 */
 	public boolean isTopLevel() {
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isTypeVariable()
 	 */
 	public boolean isTypeVariable() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isUpperbound()
 	 */
 	public boolean isUpperbound() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isWildcardType()
 	 */
 	public boolean isWildcardType() {
 		return false;
 	}


 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#getJavaElement()
 	 */
 	public IJavaScriptElement getJavaElement() {
 		try {
 			return new CompilationUnit(null, this.getInternalName(), this.resolver.getWorkingCopyOwner()).getWorkingCopy(this.resolver.getWorkingCopyOwner(), null);
 		} catch (JavaScriptModelException e) {
 			//ignore
 		}
 		return null;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#getKey()
 	 */
 	public String getKey() {
 		StringBuffer buffer = new StringBuffer();
 		buffer.append("Recovered#"); //$NON-NLS-1$
 		if (this.innerTypeBinding != null) {
 			buffer.append("innerTypeBinding") //$NON-NLS-1$
 			      .append(this.innerTypeBinding.getKey());
 		} else if (this.currentType != null) {
 			buffer.append("currentType") //$NON-NLS-1$
 			      .append(this.currentType.toString());
 		} else if (this.referenceBinding != null) {
 			buffer.append("referenceBinding") //$NON-NLS-1$
 				  .append(this.referenceBinding.computeUniqueKey());
 		} else if (variableDeclaration != null) {
 			buffer
 				.append("variableDeclaration") //$NON-NLS-1$
 				.append(this.variableDeclaration.getClass())
 				.append(this.variableDeclaration.getName().getIdentifier())
 				.append(this.variableDeclaration.getExtraDimensions());
 		}
 		buffer.append(this.getDimensions());
 		if (this.typeArguments != null) {
 			buffer.append('<');
 			for (int i = 0, max = this.typeArguments.length; i < max; i++) {
 				if (i != 0) {
 					buffer.append(',');
 				}
 				buffer.append(this.typeArguments[i].getKey());
 			}
 			buffer.append('>');
 		}
 		return String.valueOf(buffer);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#getKind()
 	 */
 	public int getKind() {
 		return IBinding.TYPE;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#isDeprecated()
 	 */
 	public boolean isDeprecated() {
 		return false;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#isEqualTo(org.eclipse.wst.jsdt.core.dom.IBinding)
 	 */
 	public boolean isEqualTo(IBinding other) {
 		if (!other.isRecovered() || other.getKind() != IBinding.TYPE) return false;
 		return this.getKey().equals(other.getKey());
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#isRecovered()
 	 */
 	public boolean isRecovered() {
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.wst.jsdt.core.dom.IBinding#isSynthetic()
 	 */
 	public boolean isSynthetic() {
 		return false;
 	}

 	private String getTypeNameFrom(Type type) {
 		if (type == null) return Util.EMPTY_STRING;
 		switch(type.getNodeType0()) {
 			case ASTNode.ARRAY_TYPE :
 				ArrayType arrayType = (ArrayType) type;
 				type = arrayType.getElementType();
 				return getTypeNameFrom(type);
 			case ASTNode.PARAMETERIZED_TYPE :
 				ParameterizedType parameterizedType = (ParameterizedType) type;
 				StringBuffer buffer = new StringBuffer(getTypeNameFrom(parameterizedType.getType()));
 				ITypeBinding[] tArguments = getTypeArguments();
 				final int typeArgumentsLength = tArguments.length;
 				if (typeArgumentsLength != 0) {
 					buffer.append('<');
 					for (int i = 0; i < typeArgumentsLength; i++) {
 						if (i > 0) {
 							buffer.append(',');
 						}
 						buffer.append(tArguments[i].getName());
 					}
 					buffer.append('>');
 				}
 				return String.valueOf(buffer);
 			case ASTNode.PRIMITIVE_TYPE :
 				PrimitiveType primitiveType = (PrimitiveType) type;
 				return primitiveType.getPrimitiveTypeCode().toString();
 			case ASTNode.QUALIFIED_TYPE :
 				QualifiedType qualifiedType = (QualifiedType) type;
 				return qualifiedType.getName().getIdentifier();
 			case ASTNode.SIMPLE_TYPE :
 				SimpleType simpleType = (SimpleType) type;
 				Name name = simpleType.getName();
 				if (name.isQualifiedName()) {
 					QualifiedName qualifiedName = (QualifiedName) name;
 					return qualifiedName.getName().getIdentifier();
 				}
 				return ((SimpleName) name).getIdentifier();
 		}
 		return Util.EMPTY_STRING;
 	}

 	private Type getType() {
 		if (this.currentType != null) {
 			return this.currentType;
 		}
 		if (this.variableDeclaration == null) return null;
 		switch(this.variableDeclaration.getNodeType()) {
 			case ASTNode.SINGLE_VARIABLE_DECLARATION :
 				SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration) this.variableDeclaration;
 				return singleVariableDeclaration.getType();
 			default :
 				// this is a variable declaration fragment
 				ASTNode parent = this.variableDeclaration.getParent();
 				switch(parent.getNodeType()) {
 					case ASTNode.VARIABLE_DECLARATION_EXPRESSION :
 						VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression) parent;
 						return variableDeclarationExpression.getType();
 					case ASTNode.VARIABLE_DECLARATION_STATEMENT :
 						VariableDeclarationStatement statement = (VariableDeclarationStatement) parent;
 						return statement.getType();
 					case ASTNode.FIELD_DECLARATION :
 						FieldDeclaration fieldDeclaration  = (FieldDeclaration) parent;
 						return fieldDeclaration.getType();
 				}
 		}
 		return null; // should not happen
 	}

 	public boolean isCompilationUnit() {
 		return false;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2007, 2008 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.wst.jsdt.core.dom;

	import java.util.List;

	import org.eclipse.wst.jsdt.core.IJavaScriptElement;
	import org.eclipse.wst.jsdt.core.JavaScriptModelException;
	import org.eclipse.wst.jsdt.internal.compiler.lookup.ArrayBinding;
	import org.eclipse.wst.jsdt.internal.compiler.lookup.CompilationUnitScope;
	import org.eclipse.wst.jsdt.internal.compiler.util.Util;
	import org.eclipse.wst.jsdt.internal.core.CompilationUnit;

	/**
	* This class represents the recovered binding for a type
	*
	* Provisional API: This class/interface is part of an interim API that is still under development and expected to
	* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
	* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
	* (repeatedly) as the API evolves.
	*/
	class RecoveredTypeBinding implements ITypeBinding {

	private VariableDeclaration variableDeclaration;
	private Type currentType;
	private BindingResolver resolver;
	private int dimensions;
	private RecoveredTypeBinding innerTypeBinding;
	private ITypeBinding[] typeArguments;
	private org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding referenceBinding;

	RecoveredTypeBinding(BindingResolver resolver, VariableDeclaration variableDeclaration) {
	this.variableDeclaration = variableDeclaration;
	this.resolver = resolver;
	this.currentType = getType();
	this.dimensions = variableDeclaration.getExtraDimensions();
	if (this.currentType.isArrayType()) {
	this.dimensions += ((ArrayType) this.currentType).getDimensions();
	}
	}

	RecoveredTypeBinding(BindingResolver resolver, org.eclipse.wst.jsdt.internal.compiler.lookup.TypeBinding referenceBinding) {
	this.resolver = resolver;
	this.dimensions = referenceBinding.dimensions();
	this.referenceBinding = referenceBinding;
	}

	RecoveredTypeBinding(BindingResolver resolver, Type type) {
	this.currentType = type;
	this.resolver = resolver;
	this.dimensions = 0;
	if (type.isArrayType()) {
	this.dimensions += ((ArrayType) type).getDimensions();
	}
	}

	RecoveredTypeBinding(BindingResolver resolver, RecoveredTypeBinding typeBinding, int dimensions) {
	this.innerTypeBinding = typeBinding;
	this.dimensions = typeBinding.getDimensions() + dimensions;
	this.resolver = resolver;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#createArrayType(int)
	*/
	public ITypeBinding createArrayType(int dims) {
	return this.resolver.getTypeBinding(this, dims);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getBinaryName()
	*/
	public String getBinaryName() {
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getBound()
	*/
	public ITypeBinding getBound() {
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getComponentType()
	*/
	public ITypeBinding getComponentType() {
	if (this.dimensions == 0) return null;
	return this.resolver.getTypeBinding(this, -1);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredFields()
	*/
	public IVariableBinding[] getDeclaredFields() {
	return TypeBinding.NO_VARIABLE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredMethods()
	*/
	public IFunctionBinding[] getDeclaredMethods() {
	return TypeBinding.NO_METHOD_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredModifiers()
	*/
	public int getDeclaredModifiers() {
	return 0;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaredTypes()
	*/
	public ITypeBinding[] getDeclaredTypes() {
	return TypeBinding.NO_TYPE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaringClass()
	*/
	public ITypeBinding getDeclaringClass() {
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDeclaringMethod()
	*/
	public IFunctionBinding getDeclaringMethod() {
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getDimensions()
	*/
	public int getDimensions() {
	return this.dimensions;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getElementType()
	*/
	public ITypeBinding getElementType() {
	if (this.referenceBinding != null) {
	if (this.referenceBinding.isArrayType()) {
	ArrayBinding arrayBinding = (ArrayBinding) this.referenceBinding;
	return new RecoveredTypeBinding(this.resolver, arrayBinding.leafComponentType);
	} else {
	return new RecoveredTypeBinding(this.resolver, this.referenceBinding);
	}
	}
	if (this.innerTypeBinding != null) {
	return this.innerTypeBinding.getElementType();
	}
	if (this.currentType!= null && this.currentType.isArrayType()) {
	return this.resolver.getTypeBinding(((ArrayType) this.currentType).getElementType());
	}
	if (this.variableDeclaration != null && this.variableDeclaration.getExtraDimensions() != 0) {
	return this.resolver.getTypeBinding(getType());
	}
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getErasure()
	*/
	public ITypeBinding getErasure() {
	return this;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getInterfaces()
	*/
	public ITypeBinding[] getInterfaces() {
	return TypeBinding.NO_TYPE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getModifiers()
	*/
	public int getModifiers() {
	return Modifier.NONE;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getName()
	*/
	public String getName() {
	char[] brackets = new char[this.dimensions * 2];
	for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
	brackets[i] = ']';
	brackets[i - 1] = '[';
	}
	StringBuffer buffer = new StringBuffer(this.getInternalName());
	buffer.append(brackets);
	return String.valueOf(buffer);
	}

	private String getInternalName() {
	if (this.innerTypeBinding != null) {
	return this.innerTypeBinding.getInternalName();
	} else if (this.referenceBinding != null) {
	org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding typeBinding = null;
	if (this.referenceBinding.isArrayType()) {
	ArrayBinding arrayBinding = (ArrayBinding) this.referenceBinding;
	if (arrayBinding.leafComponentType instanceof org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) {
	typeBinding = (org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) arrayBinding.leafComponentType;
	}
	} else if (this.referenceBinding instanceof org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) {
	typeBinding = (org.eclipse.wst.jsdt.internal.compiler.lookup.ReferenceBinding) this.referenceBinding;
	}
	return new String(typeBinding.compoundName[typeBinding.compoundName.length - 1]);
	}
	return this.getTypeNameFrom(getType());
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getPackage()
	*/
	public IPackageBinding getPackage() {
	CompilationUnitScope scope = this.resolver.scope();
	if (scope != null) {
	return this.resolver.getPackageBinding(scope.getCurrentPackage());
	}
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getQualifiedName()
	*/
	public String getQualifiedName() {
	return this.getName();
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getSuperclass()
	*/
	public ITypeBinding getSuperclass() {
	return this.resolver.resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeArguments()
	*/
	public ITypeBinding[] getTypeArguments() {
	if (this.referenceBinding != null) {
	return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
	}
	if (this.typeArguments != null) {
	return typeArguments;
	}

	if (this.innerTypeBinding != null) {
	return this.innerTypeBinding.getTypeArguments();
	}

	if (this.currentType.isParameterizedType()) {
	ParameterizedType parameterizedType = (ParameterizedType) this.currentType;
	List typeArgumentsList = parameterizedType.typeArguments();
	int size = typeArgumentsList.size();
	ITypeBinding[] temp = new ITypeBinding[size];
	for (int i = 0; i < size; i++) {
	ITypeBinding currentTypeBinding = ((Type) typeArgumentsList.get(i)).resolveBinding();
	if (currentTypeBinding == null) {
	return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
	}
	temp[i] = currentTypeBinding;
	}
	return this.typeArguments = temp;
	}
	return this.typeArguments = TypeBinding.NO_TYPE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeBounds()
	*/
	public ITypeBinding[] getTypeBounds() {
	return TypeBinding.NO_TYPE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeDeclaration()
	*/
	public ITypeBinding getTypeDeclaration() {
	return this;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getTypeParameters()
	*/
	public ITypeBinding[] getTypeParameters() {
	return TypeBinding.NO_TYPE_BINDINGS;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#getWildcard()
	*/
	public ITypeBinding getWildcard() {
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAnnotation()
	*/
	public boolean isAnnotation() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAnonymous()
	*/
	public boolean isAnonymous() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isArray()
	*/
	public boolean isArray() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isAssignmentCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
	*/
	public boolean isAssignmentCompatible(ITypeBinding typeBinding) {
	if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
	return true;
	}
	// since recovered binding are not unique isEqualTo is required
	return this.isEqualTo(typeBinding);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isCapture()
	*/
	public boolean isCapture() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isCastCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
	*/
	public boolean isCastCompatible(ITypeBinding typeBinding) {
	if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
	return true;
	}
	// since recovered binding are not unique isEqualTo is required
	return this.isEqualTo(typeBinding);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isClass()
	*/
	public boolean isClass() {
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isEnum()
	*/
	public boolean isEnum() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isFromSource()
	*/
	public boolean isFromSource() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isGenericType()
	*/
	public boolean isGenericType() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isInterface()
	*/
	public boolean isInterface() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isLocal()
	*/
	public boolean isLocal() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isMember()
	*/
	public boolean isMember() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isNested()
	*/
	public boolean isNested() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isNullType()
	*/
	public boolean isNullType() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isParameterizedType()
	*/
	public boolean isParameterizedType() {
	if (this.innerTypeBinding != null) {
	return this.innerTypeBinding.isParameterizedType();
	}
	if (this.currentType != null) {
	return this.currentType.isParameterizedType();
	}
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isPrimitive()
	*/
	public boolean isPrimitive() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isRawType()
	*/
	public boolean isRawType() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isSubTypeCompatible(org.eclipse.wst.jsdt.core.dom.ITypeBinding)
	*/
	public boolean isSubTypeCompatible(ITypeBinding typeBinding) {
	if ("java.lang.Object".equals(typeBinding.getQualifiedName())) { //$NON-NLS-1$
	return true;
	}
	// since recovered binding are not unique isEqualTo is required
	return this.isEqualTo(typeBinding);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isTopLevel()
	*/
	public boolean isTopLevel() {
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isTypeVariable()
	*/
	public boolean isTypeVariable() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isUpperbound()
	*/
	public boolean isUpperbound() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.ITypeBinding#isWildcardType()
	*/
	public boolean isWildcardType() {
	return false;
	}


	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#getJavaElement()
	*/
	public IJavaScriptElement getJavaElement() {
	try {
	return new CompilationUnit(null, this.getInternalName(), this.resolver.getWorkingCopyOwner()).getWorkingCopy(this.resolver.getWorkingCopyOwner(), null);
	} catch (JavaScriptModelException e) {
	//ignore
	}
	return null;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#getKey()
	*/
	public String getKey() {
	StringBuffer buffer = new StringBuffer();
	buffer.append("Recovered#"); //$NON-NLS-1$
	if (this.innerTypeBinding != null) {
	buffer.append("innerTypeBinding") //$NON-NLS-1$
	.append(this.innerTypeBinding.getKey());
	} else if (this.currentType != null) {
	buffer.append("currentType") //$NON-NLS-1$
	.append(this.currentType.toString());
	} else if (this.referenceBinding != null) {
	buffer.append("referenceBinding") //$NON-NLS-1$
	.append(this.referenceBinding.computeUniqueKey());
	} else if (variableDeclaration != null) {
	buffer
	.append("variableDeclaration") //$NON-NLS-1$
	.append(this.variableDeclaration.getClass())
	.append(this.variableDeclaration.getName().getIdentifier())
	.append(this.variableDeclaration.getExtraDimensions());
	}
	buffer.append(this.getDimensions());
	if (this.typeArguments != null) {
	buffer.append('<');
	for (int i = 0, max = this.typeArguments.length; i < max; i++) {
	if (i != 0) {
	buffer.append(',');
	}
	buffer.append(this.typeArguments[i].getKey());
	}
	buffer.append('>');
	}
	return String.valueOf(buffer);
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#getKind()
	*/
	public int getKind() {
	return IBinding.TYPE;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#isDeprecated()
	*/
	public boolean isDeprecated() {
	return false;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#isEqualTo(org.eclipse.wst.jsdt.core.dom.IBinding)
	*/
	public boolean isEqualTo(IBinding other) {
	if (!other.isRecovered() \|\| other.getKind() != IBinding.TYPE) return false;
	return this.getKey().equals(other.getKey());
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#isRecovered()
	*/
	public boolean isRecovered() {
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.wst.jsdt.core.dom.IBinding#isSynthetic()
	*/
	public boolean isSynthetic() {
	return false;
	}

	private String getTypeNameFrom(Type type) {
	if (type == null) return Util.EMPTY_STRING;
	switch(type.getNodeType0()) {
	case ASTNode.ARRAY_TYPE :
	ArrayType arrayType = (ArrayType) type;
	type = arrayType.getElementType();
	return getTypeNameFrom(type);
	case ASTNode.PARAMETERIZED_TYPE :
	ParameterizedType parameterizedType = (ParameterizedType) type;
	StringBuffer buffer = new StringBuffer(getTypeNameFrom(parameterizedType.getType()));
	ITypeBinding[] tArguments = getTypeArguments();
	final int typeArgumentsLength = tArguments.length;
	if (typeArgumentsLength != 0) {
	buffer.append('<');
	for (int i = 0; i < typeArgumentsLength; i++) {
	if (i > 0) {
	buffer.append(',');
	}
	buffer.append(tArguments[i].getName());
	}
	buffer.append('>');
	}
	return String.valueOf(buffer);
	case ASTNode.PRIMITIVE_TYPE :
	PrimitiveType primitiveType = (PrimitiveType) type;
	return primitiveType.getPrimitiveTypeCode().toString();
	case ASTNode.QUALIFIED_TYPE :
	QualifiedType qualifiedType = (QualifiedType) type;
	return qualifiedType.getName().getIdentifier();
	case ASTNode.SIMPLE_TYPE :
	SimpleType simpleType = (SimpleType) type;
	Name name = simpleType.getName();
	if (name.isQualifiedName()) {
	QualifiedName qualifiedName = (QualifiedName) name;
	return qualifiedName.getName().getIdentifier();
	}
	return ((SimpleName) name).getIdentifier();
	}
	return Util.EMPTY_STRING;
	}

	private Type getType() {
	if (this.currentType != null) {
	return this.currentType;
	}
	if (this.variableDeclaration == null) return null;
	switch(this.variableDeclaration.getNodeType()) {
	case ASTNode.SINGLE_VARIABLE_DECLARATION :
	SingleVariableDeclaration singleVariableDeclaration = (SingleVariableDeclaration) this.variableDeclaration;
	return singleVariableDeclaration.getType();
	default :
	// this is a variable declaration fragment
	ASTNode parent = this.variableDeclaration.getParent();
	switch(parent.getNodeType()) {
	case ASTNode.VARIABLE_DECLARATION_EXPRESSION :
	VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression) parent;
	return variableDeclarationExpression.getType();
	case ASTNode.VARIABLE_DECLARATION_STATEMENT :
	VariableDeclarationStatement statement = (VariableDeclarationStatement) parent;
	return statement.getType();
	case ASTNode.FIELD_DECLARATION :
	FieldDeclaration fieldDeclaration = (FieldDeclaration) parent;
	return fieldDeclaration.getType();
	}
	}
	return null; // should not happen
	}

	public boolean isCompilationUnit() {
	return false;
	}
	}