Examples with NameReferenceNode org.ballerinalang.plugins.idea.psi.NameReferenceNode used on opensource projects

Example 11 with NameReferenceNode

use of org.ballerinalang.plugins.idea.psi.NameReferenceNode in project ballerina by ballerina-lang.

the class FieldReference method getVariants.

@NotNull
@Override
public Object[] getVariants() {
    IdentifierPSINode identifier = getElement();
    PsiElement prevVisibleLeaf = PsiTreeUtil.prevVisibleLeaf(identifier);
    // Todo - remove hard coded "."
    if (prevVisibleLeaf == null || !".".equals(prevVisibleLeaf.getText())) {
        return new LookupElement[0];
    }
    PsiElement previousField = PsiTreeUtil.prevVisibleLeaf(prevVisibleLeaf);
    if (previousField == null) {
        return new LookupElement[0];
    }
    PsiReference reference = previousField.findReferenceAt(0);
    if (reference == null) {
        PsiElement prevSibling = identifier.getParent().getPrevSibling();
        if (prevSibling == null) {
            return new LookupElement[0];
        }
        if (prevSibling instanceof VariableReferenceNode) {
            PsiElement[] children = prevSibling.getChildren();
            if (children.length <= 0) {
                return new LookupElement[0];
            }
            PsiElement firstChild = children[0].getFirstChild();
            if (firstChild == null) {
                return new LookupElement[0];
            }
            PsiReference functionReference = firstChild.findReferenceAt(firstChild.getTextLength());
            if (functionReference == null) {
                return new LookupElement[0];
            }
            PsiElement resolvedElement = functionReference.resolve();
            if (resolvedElement == null) {
                return new LookupElement[0];
            }
            PsiElement parent = resolvedElement.getParent();
            if (parent instanceof FunctionDefinitionNode) {
                List<TypeNameNode> returnTypes = BallerinaPsiImplUtil.getReturnTypes(((FunctionDefinitionNode) parent));
                if (returnTypes.size() == 1) {
                    TypeNameNode typeNameNode = returnTypes.get(0);
                    List<LookupElement> functions = Arrays.asList((LookupElement[]) TypeReference.getVariants(typeNameNode));
                    return functions.toArray(new LookupElement[functions.size()]);
                }
            }
        }
    }
    if (reference == null) {
        return new LookupElement[0];
    }
    // Todo - use util method
    PsiElement resolvedElement = reference.resolve();
    if (resolvedElement == null || !(resolvedElement instanceof IdentifierPSINode)) {
        return new LookupElement[0];
    }
    PsiElement resolvedElementParent = resolvedElement.getParent();
    StructDefinitionNode structDefinitionNode = null;
    List<LookupElement> results = new LinkedList<>();
    // Resolve the corresponding resolvedElementParent to get the struct definition.
    if (resolvedElementParent instanceof VariableDefinitionNode || resolvedElementParent instanceof CodeBlockParameterNode || resolvedElementParent instanceof ParameterNode) {
        structDefinitionNode = BallerinaPsiImplUtil.resolveStructFromDefinitionNode(resolvedElementParent);
    } else if (resolvedElementParent instanceof FieldDefinitionNode) {
        structDefinitionNode = BallerinaPsiImplUtil.resolveTypeNodeStruct((resolvedElementParent));
    } else if (resolvedElementParent instanceof NameReferenceNode) {
        AssignmentStatementNode assignmentStatementNode = PsiTreeUtil.getParentOfType(resolvedElement, AssignmentStatementNode.class);
        if (assignmentStatementNode != null) {
            structDefinitionNode = BallerinaPsiImplUtil.getStructDefinition(assignmentStatementNode, ((IdentifierPSINode) resolvedElement));
        } else {
            structDefinitionNode = BallerinaPsiImplUtil.findStructDefinition((IdentifierPSINode) resolvedElement);
        }
        if (structDefinitionNode != null) {
            IdentifierPSINode structName = PsiTreeUtil.findChildOfType(structDefinitionNode, IdentifierPSINode.class);
            if (structName != null) {
                resolvedElement = structName;
            }
        }
    } else if (resolvedElementParent instanceof EnumDefinitionNode) {
        Collection<EnumFieldNode> fieldDefinitionNodes = PsiTreeUtil.findChildrenOfType(resolvedElementParent, EnumFieldNode.class);
        results.addAll(BallerinaCompletionUtils.createEnumFieldLookupElements(fieldDefinitionNodes, (IdentifierPSINode) resolvedElement));
        return results.toArray(new LookupElement[results.size()]);
    } else if (resolvedElementParent instanceof StructDefinitionNode) {
        structDefinitionNode = ((StructDefinitionNode) resolvedElementParent);
    }
    if (structDefinitionNode == null) {
        return new LookupElement[0];
    }
    Collection<FieldDefinitionNode> fieldDefinitionNodes = PsiTreeUtil.findChildrenOfType(structDefinitionNode, FieldDefinitionNode.class);
    results.addAll(BallerinaCompletionUtils.createFieldLookupElements(fieldDefinitionNodes, (IdentifierPSINode) resolvedElement, null));
    List<IdentifierPSINode> attachedFunctions = BallerinaPsiImplUtil.getAttachedFunctions(structDefinitionNode);
    results.addAll(BallerinaCompletionUtils.createAttachedFunctionsLookupElements(attachedFunctions));
    return results.toArray(new LookupElement[results.size()]);
}

Example 12 with NameReferenceNode

use of org.ballerinalang.plugins.idea.psi.NameReferenceNode in project ballerina by ballerina-lang.

the class BallerinaParameterInfoHandler method showParameterInfo.

@Override
public void showParameterInfo(@NotNull Object element, @NotNull CreateParameterInfoContext context) {
    // This method will be called with the return object of the findElementForParameterInfo(). If it is null,
    // this method will not be called.
    // Since we know the type, we check and cast the object.
    PsiElement currentElement = null;
    PsiElement parentElement = null;
    List<PsiElement> list = getParameters(element);
    if (element instanceof ExpressionListNode) {
        ExpressionListNode expressionListNode = (ExpressionListNode) element;
        // We need to get the ExpressionListNode parent of current ExpressionListNode.
        // Current ExpressionListNode - "WSO2"
        // Parent ExpressionListNode - setName("WSO2")
        // By doing this, we get the function name because setName("WSO2") is also a ExpressionNode.
        PsiElement parent = PsiTreeUtil.getParentOfType(expressionListNode, FunctionInvocationNode.class);
        // node is a FunctionInvocationNode.
        if (parent == null) {
            // So if the parent is null, we consider the FunctionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ExpressionNode.class);
        }
        if (parent == null) {
            parent = PsiTreeUtil.getParentOfType(expressionListNode, InvocationNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the ActionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ActionInvocationNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the ActionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ConnectorInitNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the ExpressionListNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ExpressionListNode.class);
        }
        if (parent == null) {
            parent = expressionListNode;
        }
        currentElement = expressionListNode;
        parentElement = parent;
    } else if (element instanceof FunctionInvocationNode) {
        FunctionInvocationNode functionInvocationNode = (FunctionInvocationNode) element;
        currentElement = functionInvocationNode;
        parentElement = functionInvocationNode;
    } else if (element instanceof ActionInvocationNode) {
        ActionInvocationNode actionInvocationNode = (ActionInvocationNode) element;
        currentElement = actionInvocationNode;
        parentElement = actionInvocationNode;
    } else if (element instanceof ConnectorInitNode) {
        ConnectorInitNode connectorInitNode = (ConnectorInitNode) element;
        currentElement = connectorInitNode;
        parentElement = connectorInitNode;
    } else if (element instanceof ExpressionNode) {
        ExpressionNode expressionNode = (ExpressionNode) element;
        currentElement = expressionNode;
        parentElement = expressionNode;
    } else if (element instanceof NameReferenceNode) {
        NameReferenceNode nameReferenceNode = (NameReferenceNode) element;
        currentElement = nameReferenceNode;
        parentElement = nameReferenceNode;
    } else if (element instanceof FunctionReferenceNode) {
        FunctionReferenceNode functionReferenceNode = (FunctionReferenceNode) element;
        currentElement = functionReferenceNode;
        parentElement = functionReferenceNode;
    } else if (element instanceof ConnectorReferenceNode) {
        ConnectorReferenceNode connectorReferenceNode = (ConnectorReferenceNode) element;
        currentElement = connectorReferenceNode;
        parentElement = connectorReferenceNode;
    } else if (element instanceof IdentifierPSINode) {
        IdentifierPSINode identifier = (IdentifierPSINode) element;
        currentElement = identifier;
        parentElement = identifier;
    } else if (element instanceof InvocationNode) {
        InvocationNode invocationNode = (InvocationNode) element;
        currentElement = invocationNode;
        parentElement = invocationNode;
    }
    PsiElement namedIdentifierDefNode = getNameIdentifierDefinitionNode(parentElement);
    PsiElement nameIdentifier = getNameIdentifier(currentElement, namedIdentifierDefNode);
    if (currentElement == null || nameIdentifier == null || !(nameIdentifier instanceof IdentifierPSINode)) {
        return;
    }
    if (list == null) {
        list = new LinkedList<>();
    }
    // If there are no items to show, set a custom object. Otherwise set the list as an array.
    if (list.isEmpty() && canResolve(nameIdentifier)) {
        // Todo - change how to identify no parameter situation
        context.setItemsToShow(new Object[] { "Empty" });
    } else {
        context.setItemsToShow(list.toArray(new PsiElement[list.size()]));
    }
    context.showHint(currentElement, currentElement.getTextRange().getStartOffset(), this);
}

Example 13 with NameReferenceNode

use of org.ballerinalang.plugins.idea.psi.NameReferenceNode in project ballerina by ballerina-lang.

the class BallerinaParameterInfoHandler method getParameters.

/**
 * Returns the parameter list for the given element.
 *
 * @param element
 * @return
 */
@NotNull
public static List<PsiElement> getParameters(@NotNull Object element) {
    List<PsiElement> list = new LinkedList<>();
    if (element instanceof ExpressionListNode) {
        ExpressionListNode expressionListNode = (ExpressionListNode) element;
        // We need to get the ExpressionListNode parent of current ExpressionListNode.
        // Current ExpressionListNode - "WSO2"
        // Parent ExpressionListNode - setName("WSO2")
        PsiElement parent = PsiTreeUtil.getParentOfType(expressionListNode, FunctionInvocationNode.class);
        if (parent == null) {
            // So if the parent is null, we consider the ActionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ActionInvocationNode.class);
        }
        if (parent == null) {
            parent = PsiTreeUtil.getParentOfType(expressionListNode, InvocationNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the ActionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ConnectorInitNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the FunctionInvocationNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ExpressionNode.class);
        }
        if (parent == null) {
            // So if the parent is null, we consider the ExpressionListNode as the parent node.
            parent = PsiTreeUtil.getParentOfType(expressionListNode, ExpressionListNode.class);
        }
        if (parent == null) {
            parent = expressionListNode;
        }
        list = getItemsToShow(expressionListNode, parent);
    } else if (element instanceof FunctionInvocationNode) {
        FunctionInvocationNode functionInvocationNode = (FunctionInvocationNode) element;
        list = getItemsToShow(functionInvocationNode, functionInvocationNode);
    } else if (element instanceof ActionInvocationNode) {
        ActionInvocationNode actionInvocationNode = (ActionInvocationNode) element;
        list = getItemsToShow(actionInvocationNode, actionInvocationNode);
    } else if (element instanceof ConnectorInitNode) {
        ConnectorInitNode connectorInitNode = (ConnectorInitNode) element;
        list = getItemsToShow(connectorInitNode, connectorInitNode);
    } else if (element instanceof ExpressionNode) {
        ExpressionNode expressionNode = (ExpressionNode) element;
        list = getItemsToShow(expressionNode, expressionNode);
    } else if (element instanceof NameReferenceNode) {
        NameReferenceNode nameReferenceNode = (NameReferenceNode) element;
        list = getItemsToShow(nameReferenceNode, nameReferenceNode);
    } else if (element instanceof FunctionReferenceNode) {
        FunctionReferenceNode functionReferenceNode = (FunctionReferenceNode) element;
        list = getItemsToShow(functionReferenceNode, functionReferenceNode);
    } else if (element instanceof ConnectorReferenceNode) {
        ConnectorReferenceNode connectorReferenceNode = (ConnectorReferenceNode) element;
        list = getItemsToShow(connectorReferenceNode, connectorReferenceNode);
    } else if (element instanceof IdentifierPSINode) {
        IdentifierPSINode identifier = (IdentifierPSINode) element;
        list = getItemsToShow(identifier, identifier);
    } else if (element instanceof InvocationNode) {
        InvocationNode invocationNode = (InvocationNode) element;
        list = getItemsToShow(invocationNode, invocationNode);
    }
    return list;
}