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

Example 6 with VariableReferenceNode

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

the class BallerinaPsiImplUtil method getVariablesFromVarAssignment.

@NotNull
public static List<IdentifierPSINode> getVariablesFromVarAssignment(@NotNull AssignmentStatementNode assignmentStatementNode) {
    List<IdentifierPSINode> results = new LinkedList<>();
    VariableReferenceListNode variableReferenceListNode = PsiTreeUtil.getChildOfType(assignmentStatementNode, VariableReferenceListNode.class);
    if (variableReferenceListNode == null) {
        return results;
    }
    VariableReferenceNode[] variableReferenceNodes = PsiTreeUtil.getChildrenOfType(variableReferenceListNode, VariableReferenceNode.class);
    if (variableReferenceNodes == null) {
        return results;
    }
    for (VariableReferenceNode variableReferenceNode : variableReferenceNodes) {
        IdentifierPSINode identifier = PsiTreeUtil.findChildOfType(variableReferenceNode, IdentifierPSINode.class);
        if (identifier != null && !"_".equals(identifier.getText())) {
            results.add(identifier);
        }
    }
    return results;
}

Example 7 with VariableReferenceNode

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

the class BallerinaPsiImplUtil method getStructDefinition.

/**
 * Checks the RHS of the provided {@link AssignmentStatementNode} and returns the corresponding
 * {@link StructDefinitionNode}.
 *
 * @param assignmentStatementNode an assignment statement node
 * @param structReferenceNode     an identifier which is a var variable in the assignment node
 * @return {@code null} if cannot suggest a {@link StructDefinitionNode}, otherwise returns the corresponding
 * {@link StructDefinitionNode}.
 */
@Nullable
public static StructDefinitionNode getStructDefinition(@NotNull AssignmentStatementNode assignmentStatementNode, @NotNull IdentifierPSINode structReferenceNode) {
    if (!BallerinaPsiImplUtil.isVarAssignmentStatement(assignmentStatementNode)) {
        return null;
    }
    ExpressionNode expressionNode = PsiTreeUtil.getChildOfType(assignmentStatementNode, ExpressionNode.class);
    if (expressionNode == null) {
        return null;
    }
    PsiElement expressionNodeFirstChild = expressionNode.getFirstChild();
    if (expressionNodeFirstChild instanceof VariableReferenceNode) {
        return getStructDefinition((VariableReferenceNode) expressionNodeFirstChild, assignmentStatementNode, structReferenceNode);
    } else if (expressionNodeFirstChild instanceof TypeCastNode) {
        int index = getVariableIndexFromVarAssignment(assignmentStatementNode, structReferenceNode);
        if (index == 0) {
            return resolveTypeNodeStruct((expressionNodeFirstChild));
        } else if (index == 1) {
            return getErrorStruct(assignmentStatementNode, structReferenceNode, true, false);
        }
    } else if (expressionNodeFirstChild instanceof TypeConversionNode) {
        int index = getVariableIndexFromVarAssignment(assignmentStatementNode, structReferenceNode);
        if (index == 0) {
            return resolveTypeNodeStruct((expressionNodeFirstChild));
        } else if (index == 1) {
            return getErrorStruct(assignmentStatementNode, structReferenceNode, false, true);
        }
    }
    return null;
}

Example 8 with VariableReferenceNode

use of org.ballerinalang.plugins.idea.psi.VariableReferenceNode 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()]);
}