Java Code Examples for org.eclipse.jdt.core.dom.Expression#getLocationInParent()

The following examples show how to use org.eclipse.jdt.core.dom.Expression#getLocationInParent() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ExtractConstantRefactoring.java    From eclipse.jdt.ls with Eclipse Public License 2.0 6 votes vote down vote up 
private RefactoringStatus checkExpression() throws JavaModelException {
	RefactoringStatus result = new RefactoringStatus();
	result.merge(checkExpressionBinding());
	if (result.hasFatalError()) {
		return result;
	}
	checkAllStaticFinal();

	IExpressionFragment selectedExpression = getSelectedExpression();
	Expression associatedExpression = selectedExpression.getAssociatedExpression();
	if (associatedExpression instanceof NullLiteral) {
		result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_null_literals));
	} else if (!ConstantChecks.isLoadTimeConstant(selectedExpression)) {
		result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_not_load_time_constant));
	} else if (associatedExpression instanceof SimpleName) {
		if (associatedExpression.getParent() instanceof QualifiedName && associatedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY
				|| associatedExpression.getParent() instanceof FieldAccess && associatedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_select_expression);
		}
	}

	return result;
}
Example 2
Source File: ExtractTempRefactoring.java    From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 6 votes vote down vote up 
private RefactoringStatus checkExpression() throws JavaModelException {
	Expression selectedExpression= getSelectedExpression().getAssociatedExpression();
	if (selectedExpression != null) {
		final ASTNode parent= selectedExpression.getParent();
		if (selectedExpression instanceof NullLiteral) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_null_literals);
		} else if (selectedExpression instanceof ArrayInitializer) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_array_initializer);
		} else if (selectedExpression instanceof Assignment) {
			if (parent instanceof Expression && !(parent instanceof ParenthesizedExpression))
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_assignment);
			else
				return null;
		} else if (selectedExpression instanceof SimpleName) {
			if ((((SimpleName) selectedExpression)).isDeclaration())
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_names_in_declarations);
			if (parent instanceof QualifiedName && selectedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY || parent instanceof FieldAccess && selectedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY)
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_select_expression);
		} else if (selectedExpression instanceof VariableDeclarationExpression && parent instanceof TryStatement) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_resource_in_try_with_resources);
		}
	}

	return null;
}
Example 3
Source File: ExtractConstantRefactoring.java    From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 6 votes vote down vote up 
private RefactoringStatus checkExpression() throws JavaModelException {
	RefactoringStatus result= new RefactoringStatus();
	result.merge(checkExpressionBinding());
	if(result.hasFatalError())
		return result;
	checkAllStaticFinal();

	IExpressionFragment selectedExpression= getSelectedExpression();
	Expression associatedExpression= selectedExpression.getAssociatedExpression();
	if (associatedExpression instanceof NullLiteral)
		result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_null_literals));
	else if (!ConstantChecks.isLoadTimeConstant(selectedExpression))
		result.merge(RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_not_load_time_constant));
	else if (associatedExpression instanceof SimpleName) {
		if (associatedExpression.getParent() instanceof QualifiedName && associatedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY
				|| associatedExpression.getParent() instanceof FieldAccess && associatedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY)
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractConstantRefactoring_select_expression);
	}

	return result;
}
Example 4
Source File: ExtractTempRefactoring.java    From eclipse.jdt.ls with Eclipse Public License 2.0 5 votes vote down vote up 
private RefactoringStatus checkExpression() throws JavaModelException {
	Expression selectedExpression = getSelectedExpression().getAssociatedExpression();
	if (selectedExpression != null) {
		final ASTNode parent = selectedExpression.getParent();
		if (selectedExpression instanceof NullLiteral) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_null_literals);
		} else if (selectedExpression instanceof ArrayInitializer) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_array_initializer);
		} else if (selectedExpression instanceof Assignment) {
			if (parent instanceof Expression && !(parent instanceof ParenthesizedExpression)) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_assignment);
			} else {
				return null;
			}
		} else if (selectedExpression instanceof SimpleName) {
			if ((((SimpleName) selectedExpression)).isDeclaration()) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_names_in_declarations);
			}
			if (parent instanceof QualifiedName && selectedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY || parent instanceof FieldAccess && selectedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_select_expression);
			}
		} else if (selectedExpression instanceof VariableDeclarationExpression && parent instanceof TryStatement) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_resource_in_try_with_resources);
		}
	}

	return null;
}
Example 5
Source File: ExtractFieldRefactoring.java    From eclipse.jdt.ls with Eclipse Public License 2.0 5 votes vote down vote up 
private RefactoringStatus checkExpression() throws JavaModelException {
	Expression selectedExpression = getSelectedExpression().getAssociatedExpression();
	if (selectedExpression != null) {
		final ASTNode parent = selectedExpression.getParent();
		if (selectedExpression instanceof NullLiteral) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_null_literals);
		} else if (selectedExpression instanceof ArrayInitializer) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_array_initializer);
		} else if (selectedExpression instanceof Assignment) {
			if (parent instanceof Expression && !(parent instanceof ParenthesizedExpression)) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_assignment);
			} else {
				return null;
			}
		} else if (selectedExpression instanceof SimpleName) {
			if ((((SimpleName) selectedExpression)).isDeclaration()) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_names_in_declarations);
			}
			if (parent instanceof QualifiedName && selectedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY || parent instanceof FieldAccess && selectedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY) {
				return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_select_expression);
			}
		} else if (selectedExpression instanceof VariableDeclarationExpression && parent instanceof TryStatement) {
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_resource_in_try_with_resources);
		}
	}

	return null;
}
Example 6
Source File: IntroduceParameterRefactoring.java    From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 5 votes vote down vote up 
private RefactoringStatus checkExpression() {
	//TODO: adjust error messages (or generalize for all refactorings on expression-selections?)
	Expression selectedExpression= fSelectedExpression;

	if (selectedExpression instanceof Name && selectedExpression.getParent() instanceof ClassInstanceCreation)
		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_name_in_new);
		//TODO: let's just take the CIC automatically (no ambiguity -> no problem -> no dialog ;-)

	if (selectedExpression instanceof NullLiteral) {
		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_null_literals);
	} else if (selectedExpression instanceof ArrayInitializer) {
		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_array_initializer);
	} else if (selectedExpression instanceof Assignment) {
		if (selectedExpression.getParent() instanceof Expression)
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_assignment);
		else
			return null;

	} else if (selectedExpression instanceof SimpleName){
		if ((((SimpleName)selectedExpression)).isDeclaration())
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_names_in_declarations);
		if (selectedExpression.getParent() instanceof QualifiedName && selectedExpression.getLocationInParent() == QualifiedName.NAME_PROPERTY
				|| selectedExpression.getParent() instanceof FieldAccess && selectedExpression.getLocationInParent() == FieldAccess.NAME_PROPERTY)
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.ExtractTempRefactoring_select_expression);
	}

	return null;
}
Example 7
Source File: ASTNodes.java    From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 5 votes vote down vote up 
/**
 * Returns whether an expression at the given location needs explicit boxing.
 * 
 * @param expression the expression
 * @return <code>true</code> iff an expression at the given location needs explicit boxing
 * @since 3.6
 */
private static boolean needsExplicitBoxing(Expression expression) {
	StructuralPropertyDescriptor locationInParent= expression.getLocationInParent();
	if (locationInParent == ParenthesizedExpression.EXPRESSION_PROPERTY)
		return needsExplicitBoxing((ParenthesizedExpression) expression.getParent());
	
	if (locationInParent == ClassInstanceCreation.EXPRESSION_PROPERTY
			|| locationInParent == FieldAccess.EXPRESSION_PROPERTY
			|| locationInParent == MethodInvocation.EXPRESSION_PROPERTY)
		return true;
	
	return false;
}