下面列出了org.eclipse.jdt.core.dom.ASTNode#CAST_EXPRESSION 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
public static ASTRewriteCorrectionProposal createCastProposal(IInvocationContext context, ITypeBinding castTypeBinding, Expression nodeToCast, int relevance) {
ICompilationUnit cu= context.getCompilationUnit();
String label;
String castType= BindingLabelProviderCore.getBindingLabel(castTypeBinding, JavaElementLabels.ALL_DEFAULT);
if (nodeToCast.getNodeType() == ASTNode.CAST_EXPRESSION) {
label= Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changecast_description, castType);
} else {
label= Messages.format(CorrectionMessages.TypeMismatchSubProcessor_addcast_description, castType);
}
return new CastCorrectionProposal(label, cu, nodeToCast, castTypeBinding, relevance);
}
private static boolean expressionTypeNeedsParentheses(Expression expression) {
int type= expression.getNodeType();
return type == ASTNode.INFIX_EXPRESSION
|| type == ASTNode.CONDITIONAL_EXPRESSION
|| type == ASTNode.PREFIX_EXPRESSION
|| type == ASTNode.POSTFIX_EXPRESSION
|| type == ASTNode.CAST_EXPRESSION
|| type == ASTNode.INSTANCEOF_EXPRESSION
|| type == ASTNode.ARRAY_CREATION
|| type == ASTNode.ASSIGNMENT;
}
public static ASTRewriteCorrectionProposal createCastProposal(IInvocationContext context, ITypeBinding castTypeBinding, Expression nodeToCast, int relevance) {
ICompilationUnit cu= context.getCompilationUnit();
String label;
String castType= BindingLabelProvider.getBindingLabel(castTypeBinding, JavaElementLabels.ALL_DEFAULT);
if (nodeToCast.getNodeType() == ASTNode.CAST_EXPRESSION) {
label= Messages.format(CorrectionMessages.TypeMismatchSubProcessor_changecast_description, castType);
} else {
label= Messages.format(CorrectionMessages.TypeMismatchSubProcessor_addcast_description, castType);
}
return new CastCorrectionProposal(label, cu, nodeToCast, castTypeBinding, relevance);
}
private Expression convert(org.eclipse.jdt.core.dom.Expression expression) {
switch (expression.getNodeType()) {
case ASTNode.ARRAY_ACCESS:
return convert((org.eclipse.jdt.core.dom.ArrayAccess) expression);
case ASTNode.ARRAY_CREATION:
return convert((org.eclipse.jdt.core.dom.ArrayCreation) expression);
case ASTNode.ARRAY_INITIALIZER:
return convert((org.eclipse.jdt.core.dom.ArrayInitializer) expression);
case ASTNode.ASSIGNMENT:
return convert((org.eclipse.jdt.core.dom.Assignment) expression);
case ASTNode.BOOLEAN_LITERAL:
return convert((org.eclipse.jdt.core.dom.BooleanLiteral) expression);
case ASTNode.CAST_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.CastExpression) expression);
case ASTNode.CHARACTER_LITERAL:
return convert((org.eclipse.jdt.core.dom.CharacterLiteral) expression);
case ASTNode.CLASS_INSTANCE_CREATION:
return convert((org.eclipse.jdt.core.dom.ClassInstanceCreation) expression);
case ASTNode.CONDITIONAL_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.ConditionalExpression) expression);
case ASTNode.EXPRESSION_METHOD_REFERENCE:
return convert((org.eclipse.jdt.core.dom.ExpressionMethodReference) expression);
case ASTNode.CREATION_REFERENCE:
return convert((org.eclipse.jdt.core.dom.CreationReference) expression);
case ASTNode.TYPE_METHOD_REFERENCE:
return convert((org.eclipse.jdt.core.dom.TypeMethodReference) expression);
case ASTNode.SUPER_METHOD_REFERENCE:
return convert((org.eclipse.jdt.core.dom.SuperMethodReference) expression);
case ASTNode.FIELD_ACCESS:
return convert((org.eclipse.jdt.core.dom.FieldAccess) expression);
case ASTNode.INFIX_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.InfixExpression) expression);
case ASTNode.INSTANCEOF_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.InstanceofExpression) expression);
case ASTNode.LAMBDA_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.LambdaExpression) expression);
case ASTNode.METHOD_INVOCATION:
return convert((org.eclipse.jdt.core.dom.MethodInvocation) expression);
case ASTNode.NULL_LITERAL:
return NullLiteral.get();
case ASTNode.NUMBER_LITERAL:
return convert((org.eclipse.jdt.core.dom.NumberLiteral) expression);
case ASTNode.PARENTHESIZED_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.ParenthesizedExpression) expression);
case ASTNode.POSTFIX_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.PostfixExpression) expression);
case ASTNode.PREFIX_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.PrefixExpression) expression);
case ASTNode.QUALIFIED_NAME:
return convert((org.eclipse.jdt.core.dom.QualifiedName) expression);
case ASTNode.SIMPLE_NAME:
return convert((org.eclipse.jdt.core.dom.SimpleName) expression);
case ASTNode.STRING_LITERAL:
return convert((org.eclipse.jdt.core.dom.StringLiteral) expression);
case ASTNode.SUPER_FIELD_ACCESS:
return convert((org.eclipse.jdt.core.dom.SuperFieldAccess) expression);
case ASTNode.SUPER_METHOD_INVOCATION:
return convert((org.eclipse.jdt.core.dom.SuperMethodInvocation) expression);
case ASTNode.THIS_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.ThisExpression) expression);
case ASTNode.TYPE_LITERAL:
return convert((org.eclipse.jdt.core.dom.TypeLiteral) expression);
case ASTNode.VARIABLE_DECLARATION_EXPRESSION:
return convert((org.eclipse.jdt.core.dom.VariableDeclarationExpression) expression);
default:
throw internalCompilerError(
"Unexpected type for Expression: %s", expression.getClass().getName());
}
}
private void parseExpression(MethodInfo methodInfo, Expression expression) {
if (expression == null) {
return;
}//System.out.println(expression.toString()+" "+Annotation.nodeClassForType(expression.getNodeType()));
if (expression.getNodeType() == ASTNode.ARRAY_INITIALIZER) {
List<Expression> expressions = ((ArrayInitializer) expression).expressions();
for (Expression expression2 : expressions) {
parseExpression(methodInfo, expression2);
}
}
if (expression.getNodeType() == ASTNode.CAST_EXPRESSION) {
parseExpression(methodInfo, ((CastExpression) expression).getExpression());
}
if (expression.getNodeType() == ASTNode.CONDITIONAL_EXPRESSION) {
parseExpression(methodInfo, ((ConditionalExpression) expression).getExpression());
parseExpression(methodInfo, ((ConditionalExpression) expression).getElseExpression());
parseExpression(methodInfo, ((ConditionalExpression) expression).getThenExpression());
}
if (expression.getNodeType() == ASTNode.INFIX_EXPRESSION) {
parseExpression(methodInfo, ((InfixExpression) expression).getLeftOperand());
parseExpression(methodInfo, ((InfixExpression) expression).getRightOperand());
}
if (expression.getNodeType() == ASTNode.INSTANCEOF_EXPRESSION) {
parseExpression(methodInfo, ((InstanceofExpression) expression).getLeftOperand());
}
if (expression.getNodeType() == ASTNode.PARENTHESIZED_EXPRESSION) {
parseExpression(methodInfo, ((ParenthesizedExpression) expression).getExpression());
}
if (expression.getNodeType() == ASTNode.POSTFIX_EXPRESSION) {
parseExpression(methodInfo, ((PostfixExpression) expression).getOperand());
}
if (expression.getNodeType() == ASTNode.PREFIX_EXPRESSION) {
parseExpression(methodInfo, ((PrefixExpression) expression).getOperand());
}
if (expression.getNodeType() == ASTNode.THIS_EXPRESSION) {
parseExpression(methodInfo, ((ThisExpression) expression).getQualifier());
}
if (expression.getNodeType() == ASTNode.METHOD_INVOCATION) {
List<Expression> arguments = ((MethodInvocation) expression).arguments();
IMethodBinding methodBinding = ((MethodInvocation) expression).resolveMethodBinding();
if (methodBinding != null)
methodInfo.methodCalls.add(methodBinding);
for (Expression exp : arguments)
parseExpression(methodInfo, exp);
parseExpression(methodInfo, ((MethodInvocation) expression).getExpression());
}
if (expression.getNodeType() == ASTNode.ASSIGNMENT) {
parseExpression(methodInfo, ((Assignment) expression).getLeftHandSide());
parseExpression(methodInfo, ((Assignment) expression).getRightHandSide());
}
if (expression.getNodeType() == ASTNode.QUALIFIED_NAME) {
if (((QualifiedName) expression).getQualifier().resolveTypeBinding() != null) {
String name = ((QualifiedName) expression).getQualifier().resolveTypeBinding().getQualifiedName() + "." + ((QualifiedName) expression).getName().getIdentifier();
methodInfo.fieldUsesSet.add(name);
}
parseExpression(methodInfo, ((QualifiedName) expression).getQualifier());
}
}
/**
* Resolve the binding (<em>not</em> the type binding) for the expression or a nested expression
* (e.g. nested in parentheses, cast, ...).
*
* @param expression an expression node
* @param goIntoCast iff <code>true</code>, go into a CastExpression's expression to resolve
* @return the expression binding, or <code>null</code> if the expression has no binding or the
* binding could not be resolved
*
* @see StubUtility#getVariableNameSuggestions(int, IJavaProject, ITypeBinding, Expression, java.util.Collection)
* @since 3.5
*/
public static IBinding resolveExpressionBinding(Expression expression, boolean goIntoCast) {
//TODO: search for callers of resolve*Binding() methods and replace with call to this method
// similar to StubUtility#getVariableNameSuggestions(int, IJavaProject, ITypeBinding, Expression, Collection)
switch (expression.getNodeType()) {
case ASTNode.SIMPLE_NAME:
case ASTNode.QUALIFIED_NAME:
return ((Name) expression).resolveBinding();
case ASTNode.FIELD_ACCESS:
return ((FieldAccess) expression).resolveFieldBinding();
case ASTNode.SUPER_FIELD_ACCESS:
return ((SuperFieldAccess) expression).resolveFieldBinding();
case ASTNode.METHOD_INVOCATION:
return ((MethodInvocation) expression).resolveMethodBinding();
case ASTNode.SUPER_METHOD_INVOCATION:
return ((SuperMethodInvocation) expression).resolveMethodBinding();
case ASTNode.CLASS_INSTANCE_CREATION:
return ((ClassInstanceCreation) expression).resolveConstructorBinding();
case ASTNode.MARKER_ANNOTATION:
case ASTNode.SINGLE_MEMBER_ANNOTATION:
case ASTNode.NORMAL_ANNOTATION:
return ((Annotation) expression).resolveAnnotationBinding();
case ASTNode.ARRAY_ACCESS:
return resolveExpressionBinding(((ArrayAccess) expression).getArray(), goIntoCast);
case ASTNode.CAST_EXPRESSION:
if (goIntoCast) {
return resolveExpressionBinding(((CastExpression) expression).getExpression(), true);
} else {
return null;
}
case ASTNode.PARENTHESIZED_EXPRESSION:
return resolveExpressionBinding(((ParenthesizedExpression) expression).getExpression(), goIntoCast);
case ASTNode.PREFIX_EXPRESSION:
return resolveExpressionBinding(((PrefixExpression) expression).getOperand(), goIntoCast);
case ASTNode.POSTFIX_EXPRESSION:
return resolveExpressionBinding(((PostfixExpression) expression).getOperand(), goIntoCast);
default:
return null;
}
}