org.eclipse.jdt.core.dom.TypeParameter#setName ( )源码实例Demo

private void addTypeParameters(TypeDeclaration newDeclaration) {
	if (isParameterizedType(fTypeKind, fNode)) {
		String typeArgBaseName = getGenericTypeArgBaseName(ASTNodes.getSimpleNameIdentifier(fNode));
		int nTypeArgs = ((ParameterizedType) fNode.getParent().getParent()).typeArguments().size();
		String[] typeArgNames = new String[nTypeArgs];
		if (nTypeArgs == 1) {
			typeArgNames[0] = typeArgBaseName;
		} else {
			for (int i = 0; i < nTypeArgs; i++) {
				StringBuilder buf = new StringBuilder(typeArgBaseName);
				buf.append(i + 1);
				typeArgNames[i] = buf.toString();
			}
		}

		AST ast = newDeclaration.getAST();
		for (String typeArgName : typeArgNames) {
			TypeParameter typeArg = ast.newTypeParameter();
			typeArg.setName(ast.newSimpleName(typeArgName));
			newDeclaration.typeParameters().add(typeArg);
		}
	}

}
 

private void addEnclosingInstanceTypeParameters(final ITypeBinding[] parameters, final AbstractTypeDeclaration declaration, final ASTRewrite rewrite) {
	Assert.isNotNull(parameters);
	Assert.isNotNull(declaration);
	Assert.isNotNull(rewrite);
	if (declaration instanceof TypeDeclaration) {
		final TypeDeclaration type= (TypeDeclaration) declaration;
		final List<TypeParameter> existing= type.typeParameters();
		final Set<String> names= new HashSet<String>();
		TypeParameter parameter= null;
		for (final Iterator<TypeParameter> iterator= existing.iterator(); iterator.hasNext();) {
			parameter= iterator.next();
			names.add(parameter.getName().getIdentifier());
		}
		final ListRewrite rewriter= rewrite.getListRewrite(type, TypeDeclaration.TYPE_PARAMETERS_PROPERTY);
		String name= null;
		for (int index= 0; index < parameters.length; index++) {
			name= parameters[index].getName();
			if (!names.contains(name)) {
				parameter= type.getAST().newTypeParameter();
				parameter.setName(type.getAST().newSimpleName(name));
				rewriter.insertLast(parameter, null);
			}
		}
	}
}
 

private void addTypeParameters(CompilationUnitRewrite imRewrite, List<TypeParameter> list, ITypeBinding parent) {

		ITypeBinding enclosing= parent.getDeclaringClass();
		if (enclosing != null)
			addTypeParameters(imRewrite, list, enclosing);

		ITypeBinding[] typeParameters= parent.getTypeParameters();
		for (int i= 0; i < typeParameters.length; i++) {
			TypeParameter ntp= imRewrite.getAST().newTypeParameter();
			ntp.setName(imRewrite.getAST().newSimpleName(typeParameters[i].getName()));
			ITypeBinding[] bounds= typeParameters[i].getTypeBounds();
			for (int j= 0; j < bounds.length; j++)
				if (!"java.lang.Object".equals(bounds[j].getQualifiedName())) //$NON-NLS-1$
					ntp.typeBounds().add(imRewrite.getImportRewrite().addImport(bounds[j], imRewrite.getAST()));
			list.add(ntp);
		}
	}
 

/**
 * Copies the constructor's parent type's type parameters, if any, as
 * method type parameters of the new static factory method. (Recall
 * that static methods can't refer to type arguments of the enclosing
 * class, since they have no instance to serve as a context.)<br>
 * Makes sure to copy the bounds from the owning type, to ensure that the
 * return type of the factory method satisfies the bounds of the type
 * being instantiated.<br>
 * E.g., for ctor Foo() in the type Foo<T extends Number>, be sure that
 * the factory method is declared as<br>
 * <code>static <T extends Number> Foo<T> createFoo()</code><br>
 * and not simply<br>
 * <code>static <T> Foo<T> createFoo()</code><br>
 * or the compiler will bark.
 * @param ast utility object needed to create ASTNode's for the new method
 * @param newMethod the method onto which to copy the type parameters
 */
private void copyTypeParameters(AST ast, MethodDeclaration newMethod) {
	ITypeBinding[] ctorOwnerTypeParms= fCtorBinding.getDeclaringClass().getTypeParameters();
	List<TypeParameter> factoryMethodTypeParms= newMethod.typeParameters();
	for(int i= 0; i < ctorOwnerTypeParms.length; i++) {
           TypeParameter newParm= ast.newTypeParameter();
           ITypeBinding[] parmTypeBounds= ctorOwnerTypeParms[i].getTypeBounds();
           List<Type> newParmBounds= newParm.typeBounds();

           newParm.setName(ast.newSimpleName(ctorOwnerTypeParms[i].getName()));
           for(int b=0; b < parmTypeBounds.length; b++) {
           	if (parmTypeBounds[b].isClass() && parmTypeBounds[b].getSuperclass() == null)
           		continue;

           	Type newBound= fImportRewriter.addImport(parmTypeBounds[b], ast);

               newParmBounds.add(newBound);
           }
		factoryMethodTypeParms.add(newParm);
	}
}
 

private static void createTypeParameters(ImportRewrite imports, ImportRewriteContext context, AST ast, IMethodBinding binding, MethodDeclaration decl) {
	ITypeBinding[] typeParams= binding.getTypeParameters();
	List<TypeParameter> typeParameters= decl.typeParameters();
	for (int i= 0; i < typeParams.length; i++) {
		ITypeBinding curr= typeParams[i];
		TypeParameter newTypeParam= ast.newTypeParameter();
		newTypeParam.setName(ast.newSimpleName(curr.getName()));
		ITypeBinding[] typeBounds= curr.getTypeBounds();
		if (typeBounds.length != 1 || !"java.lang.Object".equals(typeBounds[0].getQualifiedName())) {//$NON-NLS-1$
			List<Type> newTypeBounds= newTypeParam.typeBounds();
			for (int k= 0; k < typeBounds.length; k++) {
				newTypeBounds.add(imports.addImport(typeBounds[k], ast, context));
			}
		}
		typeParameters.add(newTypeParam);
	}
}
 

private void updateConstructorReference(ITypeBinding[] parameters, ParameterizedType type, CompilationUnitRewrite targetRewrite, ICompilationUnit cu, TextEditGroup group) throws CoreException {
	final ListRewrite rewrite= targetRewrite.getASTRewrite().getListRewrite(type, ParameterizedType.TYPE_ARGUMENTS_PROPERTY);
	TypeParameter parameter= null;
	for (int index= type.typeArguments().size(); index < parameters.length; index++) {
		parameter= targetRewrite.getRoot().getAST().newTypeParameter();
		parameter.setName(targetRewrite.getRoot().getAST().newSimpleName(parameters[index].getName()));
		rewrite.insertLast(parameter, group);
	}
	if (type.getParent() instanceof ClassInstanceCreation)
		updateConstructorReference((ClassInstanceCreation) type.getParent(), targetRewrite, cu, group);
}
 

private void copyTypeParameters(MethodDeclaration intermediary, CompilationUnitRewrite rew) {
	ITypeBinding[] typeParameters= fTargetMethodBinding.getTypeParameters();
	for (int i= 0; i < typeParameters.length; i++) {
		ITypeBinding current= typeParameters[i];

		TypeParameter parameter= rew.getAST().newTypeParameter();
		parameter.setName(rew.getAST().newSimpleName(current.getName()));
		ITypeBinding[] bounds= current.getTypeBounds();
		for (int j= 0; j < bounds.length; j++)
			if (!"java.lang.Object".equals(bounds[j].getQualifiedName())) //$NON-NLS-1$
				parameter.typeBounds().add(rew.getImportRewrite().addImport(bounds[j], rew.getAST()));

		intermediary.typeParameters().add(parameter);
	}
}
 

private AbstractTypeDeclaration createNewNestedClass(CompilationUnitRewrite rewrite, ITypeBinding[] typeParameters) throws CoreException {
	final AST ast= fAnonymousInnerClassNode.getAST();

	final TypeDeclaration newDeclaration= ast.newTypeDeclaration();
	newDeclaration.setInterface(false);
	newDeclaration.setJavadoc(null);
	newDeclaration.modifiers().addAll(ASTNodeFactory.newModifiers(ast, createModifiersForNestedClass()));
	newDeclaration.setName(ast.newSimpleName(fClassName));

	TypeParameter parameter= null;
	for (int index= 0; index < typeParameters.length; index++) {
		parameter= ast.newTypeParameter();
		parameter.setName(ast.newSimpleName(typeParameters[index].getName()));
		newDeclaration.typeParameters().add(parameter);
	}
	setSuperType(newDeclaration);

	IJavaProject project= fCu.getJavaProject();

	IVariableBinding[] bindings= getUsedLocalVariables();
	ArrayList<String> fieldNames= new ArrayList<String>();
	for (int i= 0; i < bindings.length; i++) {
		String name= StubUtility.getBaseName(bindings[i], project);
		String[] fieldNameProposals= StubUtility.getVariableNameSuggestions(NamingConventions.VK_INSTANCE_FIELD, project, name, 0, fieldNames, true);
		fieldNames.add(fieldNameProposals[0]);


		if (fLinkedProposalModel != null) {
			LinkedProposalPositionGroup positionGroup= fLinkedProposalModel.getPositionGroup(KEY_FIELD_NAME_EXT + i, true);
			for (int k= 0; k < fieldNameProposals.length; k++) {
				positionGroup.addProposal(fieldNameProposals[k], null, fieldNameProposals.length - k);
			}
		}
	}
	String[] allFieldNames= fieldNames.toArray(new String[fieldNames.size()]);

	List<BodyDeclaration> newBodyDeclarations= newDeclaration.bodyDeclarations();

	createFieldsForAccessedLocals(rewrite, bindings, allFieldNames, newBodyDeclarations);

	MethodDeclaration newConstructorDecl= createNewConstructor(rewrite, bindings, allFieldNames);
	if (newConstructorDecl != null) {
		newBodyDeclarations.add(newConstructorDecl);
	}

	updateAndMoveBodyDeclarations(rewrite, bindings, allFieldNames, newBodyDeclarations, newConstructorDecl);

	if (doAddComments()) {
		String[] parameterNames= new String[typeParameters.length];
		for (int index= 0; index < parameterNames.length; index++) {
			parameterNames[index]= typeParameters[index].getName();
		}
		String string= CodeGeneration.getTypeComment(rewrite.getCu(), fClassName, parameterNames, StubUtility.getLineDelimiterUsed(fCu));
		if (string != null) {
			Javadoc javadoc= (Javadoc) rewrite.getASTRewrite().createStringPlaceholder(string, ASTNode.JAVADOC);
			newDeclaration.setJavadoc(javadoc);
		}
	}
	if (fLinkedProposalModel != null) {
		addLinkedPosition(KEY_TYPE_NAME, newDeclaration.getName(), rewrite.getASTRewrite(), false);
		ModifierCorrectionSubProcessor.installLinkedVisibilityProposals(fLinkedProposalModel, rewrite.getASTRewrite(), newDeclaration.modifiers(), false);
	}

	return newDeclaration;
}