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

Example 1 with ExpressionNode

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

the class BallerinaPsiImplUtil method getType.

@Nullable
private static PsiElement getType(@NotNull AssignmentStatementNode assignmentStatementNode, @NotNull IdentifierPSINode identifier) {
    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) {
        PsiElement typeNode = getTypeFromVariableReference(assignmentStatementNode, identifier, expressionNodeFirstChild);
        if (typeNode != null) {
            return typeNode;
        }
    } else if (expressionNodeFirstChild instanceof TypeCastNode) {
        int index = getVariableIndexFromVarAssignment(assignmentStatementNode, identifier);
        if (index == 0) {
            TypeNameNode typeNameNode = PsiTreeUtil.getChildOfType(expressionNodeFirstChild, TypeNameNode.class);
            if (typeNameNode == null) {
                return null;
            }
            return getType(typeNameNode, false);
        }
        StructDefinitionNode errorStruct = BallerinaPsiImplUtil.getErrorStruct(assignmentStatementNode, identifier, true, false);
        if (errorStruct == null) {
            return null;
        }
        return errorStruct.getNameIdentifier();
    } else if (expressionNodeFirstChild instanceof TypeConversionNode) {
        int index = getVariableIndexFromVarAssignment(assignmentStatementNode, identifier);
        if (index == 0) {
            TypeNameNode typeNameNode = PsiTreeUtil.getChildOfType(expressionNodeFirstChild, TypeNameNode.class);
            if (typeNameNode == null) {
                return null;
            }
            return getType(typeNameNode, false);
        }
        StructDefinitionNode errorStruct = BallerinaPsiImplUtil.getErrorStruct(assignmentStatementNode, identifier, false, true);
        if (errorStruct == null) {
            return null;
        }
        return errorStruct.getNameIdentifier();
    }
    PsiReference firstChildReference = expressionNodeFirstChild.findReferenceAt(expressionNodeFirstChild.getTextLength());
    if (firstChildReference == null) {
        return null;
    }
    PsiElement resolvedElement = firstChildReference.resolve();
    if (resolvedElement == null) {
        return null;
    }
    return getType(((IdentifierPSINode) resolvedElement));
}

Example 2 with ExpressionNode

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

the class BallerinaParserDefinition method createElement.

@NotNull
public PsiElement createElement(ASTNode node) {
    IElementType elementType = node.getElementType();
    if (elementType instanceof TokenIElementType) {
        return new ANTLRPsiNode(node);
    }
    if (!(elementType instanceof RuleIElementType)) {
        return new ANTLRPsiNode(node);
    }
    RuleIElementType ruleElType = (RuleIElementType) elementType;
    switch(ruleElType.getRuleIndex()) {
        case BallerinaParser.RULE_functionDefinition:
            return new FunctionDefinitionNode(node);
        case BallerinaParser.RULE_callableUnitBody:
            return new CallableUnitBodyNode(node);
        case BallerinaParser.RULE_nameReference:
            return new NameReferenceNode(node);
        case BallerinaParser.RULE_variableReference:
            return new VariableReferenceNode(node);
        case BallerinaParser.RULE_variableDefinitionStatement:
            return new VariableDefinitionNode(node);
        case BallerinaParser.RULE_parameter:
            return new ParameterNode(node);
        case BallerinaParser.RULE_resourceDefinition:
            return new ResourceDefinitionNode(node);
        case BallerinaParser.RULE_packageName:
            return new PackageNameNode(node);
        case BallerinaParser.RULE_fullyQualifiedPackageName:
            return new FullyQualifiedPackageNameNode(node);
        case BallerinaParser.RULE_expressionList:
            return new ExpressionListNode(node);
        case BallerinaParser.RULE_expression:
            return new ExpressionNode(node);
        case BallerinaParser.RULE_functionInvocation:
            return new FunctionInvocationNode(node);
        case BallerinaParser.RULE_compilationUnit:
            return new CompilationUnitNode(node);
        case BallerinaParser.RULE_packageDeclaration:
            return new PackageDeclarationNode(node);
        case BallerinaParser.RULE_annotationAttachment:
            return new AnnotationAttachmentNode(node);
        case BallerinaParser.RULE_serviceBody:
            return new ServiceBodyNode(node);
        case BallerinaParser.RULE_importDeclaration:
            return new ImportDeclarationNode(node);
        case BallerinaParser.RULE_statement:
            return new StatementNode(node);
        case BallerinaParser.RULE_typeName:
            return new TypeNameNode(node);
        case BallerinaParser.RULE_constantDefinition:
            return new ConstantDefinitionNode(node);
        case BallerinaParser.RULE_structDefinition:
            return new StructDefinitionNode(node);
        case BallerinaParser.RULE_simpleLiteral:
            return new SimpleLiteralNode(node);
        case BallerinaParser.RULE_packageAlias:
            return new AliasNode(node);
        case BallerinaParser.RULE_parameterList:
            return new ParameterListNode(node);
        case BallerinaParser.RULE_fieldDefinition:
            return new FieldDefinitionNode(node);
        case BallerinaParser.RULE_parameterTypeNameList:
            return new ParameterTypeNameList(node);
        case BallerinaParser.RULE_parameterTypeName:
            return new ConnectorInitNode(node);
        case BallerinaParser.RULE_serviceDefinition:
            return new ServiceDefinitionNode(node);
        case BallerinaParser.RULE_valueTypeName:
            return new ValueTypeNameNode(node);
        case BallerinaParser.RULE_annotationDefinition:
            return new AnnotationAttributeValueNode(node);
        case BallerinaParser.RULE_structBody:
            return new StructBodyNode(node);
        case BallerinaParser.RULE_returnParameter:
            return new ReturnParameterNode(node);
        case BallerinaParser.RULE_attachmentPoint:
            return new AttachmentPointNode(node);
        case BallerinaParser.RULE_definition:
            return new DefinitionNode(node);
        case BallerinaParser.RULE_ifElseStatement:
            return new IfElseStatementNode(node);
        case BallerinaParser.RULE_assignmentStatement:
            return new AssignmentStatementNode(node);
        case BallerinaParser.RULE_variableReferenceList:
            return new VariableReferenceListNode(node);
        case BallerinaParser.RULE_recordLiteral:
            return new RecordLiteralNode(node);
        case BallerinaParser.RULE_globalVariableDefinition:
            return new GlobalVariableDefinitionNode(node);
        case BallerinaParser.RULE_recordKeyValue:
            return new RecordKeyValueNode(node);
        case BallerinaParser.RULE_forkJoinStatement:
            return new ForkJoinStatementNode(node);
        case BallerinaParser.RULE_returnStatement:
            return new ReturnStatementNode(node);
        case BallerinaParser.RULE_throwStatement:
            return new ThrowStatementNode(node);
        case BallerinaParser.RULE_transformerDefinition:
            return new TransformerDefinitionNode(node);
        case BallerinaParser.RULE_workerReply:
            return new WorkerReplyNode(node);
        case BallerinaParser.RULE_triggerWorker:
            return new TriggerWorkerNode(node);
        case BallerinaParser.RULE_workerDeclaration:
            return new WorkerDeclarationNode(node);
        case BallerinaParser.RULE_workerBody:
            return new WorkerBodyNode(node);
        case BallerinaParser.RULE_joinConditions:
            return new JoinConditionNode(node);
        case BallerinaParser.RULE_field:
            return new FieldNode(node);
        case BallerinaParser.RULE_recordKey:
            return new RecordKeyNode(node);
        case BallerinaParser.RULE_recordValue:
            return new RecordValueNode(node);
        case BallerinaParser.RULE_functionReference:
            return new FunctionReferenceNode(node);
        case BallerinaParser.RULE_codeBlockBody:
            return new CodeBlockBodyNode(node);
        case BallerinaParser.RULE_nonEmptyCodeBlockBody:
            return new NonEmptyCodeBlockBodyNode(node);
        case BallerinaParser.RULE_tryCatchStatement:
            return new TryCatchStatementNode(node);
        case BallerinaParser.RULE_catchClause:
            return new CatchClauseNode(node);
        case BallerinaParser.RULE_codeBlockParameter:
            return new CodeBlockParameterNode(node);
        case BallerinaParser.RULE_foreachStatement:
            return new ForEachStatementNode(node);
        case BallerinaParser.RULE_joinClause:
            return new JoinClauseNode(node);
        case BallerinaParser.RULE_timeoutClause:
            return new TimeoutClauseNode(node);
        case BallerinaParser.RULE_xmlAttrib:
            return new XmlAttribNode(node);
        case BallerinaParser.RULE_namespaceDeclaration:
            return new NamespaceDeclarationNode(node);
        case BallerinaParser.RULE_stringTemplateLiteral:
            return new StringTemplateLiteralNode(node);
        case BallerinaParser.RULE_stringTemplateContent:
            return new StringTemplateContentNode(node);
        case BallerinaParser.RULE_typeConversion:
            return new TypeConversionNode(node);
        case BallerinaParser.RULE_xmlContent:
            return new XmlContentNode(node);
        case BallerinaParser.RULE_invocation:
            return new InvocationNode(node);
        case BallerinaParser.RULE_enumDefinition:
            return new EnumDefinitionNode(node);
        case BallerinaParser.RULE_enumField:
            return new EnumFieldNode(node);
        case BallerinaParser.RULE_builtInReferenceTypeName:
            return new BuiltInReferenceTypeNameNode(node);
        case BallerinaParser.RULE_referenceTypeName:
            return new ReferenceTypeNameNode(node);
        case BallerinaParser.RULE_functionTypeName:
            return new FunctionTypeNameNode(node);
        case BallerinaParser.RULE_lambdaFunction:
            return new LambdaFunctionNode(node);
        case BallerinaParser.RULE_endpointDeclaration:
            return new EndpointDeclarationNode(node);
        case BallerinaParser.RULE_anonStructTypeName:
            return new AnonStructTypeNameNode(node);
        case BallerinaParser.RULE_userDefineTypeName:
            return new UserDefinedTypeName(node);
        case BallerinaParser.RULE_anyIdentifierName:
            return new AnyIdentifierNameNode(node);
        case BallerinaParser.RULE_documentationAttachment:
            return new DocumentationAttachmentNode(node);
        case BallerinaParser.RULE_documentationTemplateInlineCode:
            return new DocumentationTemplateInlineCodeNode(node);
        case BallerinaParser.RULE_singleBackTickDocInlineCode:
            return new SingleBackTickDocInlineCodeNode(node);
        case BallerinaParser.RULE_doubleBackTickDocInlineCode:
            return new DoubleBackTickInlineCodeNode(node);
        case BallerinaParser.RULE_tripleBackTickDocInlineCode:
            return new TripleBackTickInlineCodeNode(node);
        case BallerinaParser.RULE_deprecatedAttachment:
            return new DeprecatedAttachmentNode(node);
        case BallerinaParser.RULE_deprecatedText:
            return new DeprecatedTextNode(node);
        case BallerinaParser.RULE_singleBackTickDeprecatedInlineCode:
            return new SingleBackTickDeprecatedInlineCodeNode(node);
        case BallerinaParser.RULE_doubleBackTickDeprecatedInlineCode:
            return new DoubleBackTickDeprecatedInlineCodeNode(node);
        case BallerinaParser.RULE_tripleBackTickDeprecatedInlineCode:
            return new TripleBackTickDeprecatedInlineCodeNode(node);
        case BallerinaParser.RULE_documentationTemplateAttributeDescription:
            return new DocumentationTemplateAttributeDescriptionNode(node);
        case BallerinaParser.RULE_formalParameterList:
            return new FormalParameterListNode(node);
        case BallerinaParser.RULE_integerLiteral:
            return new IntegerLiteralNode(node);
        case BallerinaParser.RULE_matchPatternClause:
            return new MatchPatternClauseNode(node);
        default:
            return new ANTLRPsiNode(node);
    }
}

Example 3 with ExpressionNode

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

the class BallerinaKeywordsCompletionContributor method fillCompletionVariants.

@Override
public void fillCompletionVariants(@NotNull CompletionParameters parameters, @NotNull CompletionResultSet result) {
    PsiElement element = parameters.getPosition();
    PsiElement parent = element.getParent();
    if (element instanceof LeafPsiElement) {
        IElementType elementType = ((LeafPsiElement) element).getElementType();
        if (elementType == BallerinaTypes.FLOATING_POINT) {
            return;
        }
    }
    if (parent instanceof NameReferenceNode) {
        PsiElement prevVisibleLeaf = PsiTreeUtil.prevVisibleLeaf(element);
        if (prevVisibleLeaf != null && "public".equals(prevVisibleLeaf.getText())) {
            result.addAllElements(getFileLevelKeywordsAsLookups(false, true, true));
        }
        if (prevVisibleLeaf instanceof IdentifierPSINode) {
            result.addElement(getAttachKeyword());
            return;
        }
        ANTLRPsiNode definitionParent = PsiTreeUtil.getParentOfType(parent, CallableUnitBodyNode.class, ServiceBodyNode.class, ConnectorBodyNode.class);
        if (definitionParent != null && prevVisibleLeaf != null && "=".equals(prevVisibleLeaf.getText())) {
            result.addElement(getCreateKeyword());
            result.addElement(getTypeOfKeyword());
            result.addElement(getLengthOfKeyword());
            result.addAllElements(getValueKeywords());
        }
        ExpressionNode expressionNode = PsiTreeUtil.getParentOfType(parent, ExpressionNode.class);
        if (expressionNode != null && expressionNode.getChildren().length == 1) {
            PsiReference referenceAt = parent.findReferenceAt(0);
            if (referenceAt == null || referenceAt instanceof NameReference) {
                result.addAllElements(getValueKeywords());
            }
            PsiElement nextVisibleLeaf = PsiTreeUtil.nextVisibleLeaf(element);
            if ((prevVisibleLeaf != null && "(".equals(prevVisibleLeaf.getText())) || (nextVisibleLeaf != null && ")".equals(nextVisibleLeaf.getText()) && !":".equals(prevVisibleLeaf.getText()))) {
                addOtherTypeAsLookup(result);
                addValueTypesAsLookups(result);
                addReferenceTypesAsLookups(result);
            }
        }
        AnnotationAttachmentNode attachmentNode = PsiTreeUtil.getParentOfType(parent, AnnotationAttachmentNode.class);
        if (attachmentNode != null) {
            result.addAllElements(getValueKeywords());
        }
        TypeNameNode typeNameNode = PsiTreeUtil.getParentOfType(parent, TypeNameNode.class);
        if (typeNameNode != null && prevVisibleLeaf != null && !prevVisibleLeaf.getText().matches("[:.=]")) {
            AnnotationDefinitionNode annotationDefinitionNode = PsiTreeUtil.getParentOfType(typeNameNode, AnnotationDefinitionNode.class);
            if (annotationDefinitionNode == null) {
                addOtherTypeAsLookup(result);
                addXmlnsAsLookup(result);
                addValueTypesAsLookups(result);
                addReferenceTypesAsLookups(result);
            }
        }
    }
    if (parent instanceof StatementNode) {
        PsiElement prevVisibleSibling = PsiTreeUtil.prevVisibleLeaf(element);
        if (prevVisibleSibling != null && "=".equals(prevVisibleSibling.getText())) {
            result.addElement(getCreateKeyword());
            result.addElement(getTypeOfKeyword());
            result.addElement(getLengthOfKeyword());
        }
    }
    if (parent instanceof ConstantDefinitionNode || parent instanceof PsiErrorElement) {
        PsiElement prevVisibleSibling = PsiTreeUtil.prevVisibleLeaf(element);
        if (prevVisibleSibling != null && "const".equals(prevVisibleSibling.getText())) {
            addValueTypesAsLookups(result);
            return;
        }
    }
    if (parent instanceof PsiErrorElement) {
        PsiElement prevVisibleSibling = PsiTreeUtil.prevVisibleLeaf(element);
        PsiElement definitionNode = PsiTreeUtil.getParentOfType(element, FunctionDefinitionNode.class, ServiceDefinitionNode.class, ConnectorDefinitionNode.class, ResourceDefinitionNode.class);
        if (definitionNode != null) {
            if (prevVisibleSibling != null && "=".equals(prevVisibleSibling.getText())) {
                result.addElement(getCreateKeyword());
                result.addAllElements(getValueKeywords());
                result.addElement(getTypeOfKeyword());
                result.addElement(getLengthOfKeyword());
            }
            if (prevVisibleSibling != null && prevVisibleSibling.getText().matches("[;{}]") && !(prevVisibleSibling.getParent() instanceof AnnotationAttachmentNode)) {
                // Todo - change method
                addOtherTypeAsLookup(result);
                addXmlnsAsLookup(result);
                addValueTypesAsLookups(result);
                addReferenceTypesAsLookups(result);
                if (definitionNode instanceof FunctionDefinitionNode) {
                    result.addAllElements(getFunctionSpecificKeywords());
                }
                if (definitionNode instanceof ResourceDefinitionNode) {
                    result.addAllElements(getResourceSpecificKeywords());
                }
                if (definitionNode instanceof ServiceDefinitionNode) {
                    result.addAllElements(getServiceSpecificKeywords());
                }
                if (definitionNode instanceof ConnectorDefinitionNode) {
                    result.addAllElements(getConnectorSpecificKeywords());
                }
                if (!(definitionNode instanceof ServiceDefinitionNode || definitionNode instanceof ConnectorDefinitionNode)) {
                    result.addAllElements(getCommonKeywords());
                }
            }
            if (prevVisibleSibling != null && !prevVisibleSibling.getText().matches("[{}]")) /*|| !(prevVisibleSibling.getParent() instanceof AnnotationAttachmentNode)*/
            {
                result.addAllElements(getValueKeywords());
            }
        }
        ConnectorBodyNode connectorBodyNode = PsiTreeUtil.getParentOfType(element, ConnectorBodyNode.class);
        if (connectorBodyNode != null) {
            result.addAllElements(getConnectorSpecificKeywords());
        }
        ConnectorDefinitionNode connectorDefinitionNode = PsiTreeUtil.getParentOfType(element, ConnectorDefinitionNode.class);
        if (connectorDefinitionNode != null) {
            result.addAllElements(getConnectorSpecificKeywords());
        }
        return;
    }
    if (parent instanceof NameReferenceNode) {
        RecordKeyValueNode recordKeyValueNode = PsiTreeUtil.getParentOfType(parent, RecordKeyValueNode.class);
        if (recordKeyValueNode == null) {
            PsiElement prevVisibleSibling = PsiTreeUtil.prevVisibleLeaf(element);
            if (prevVisibleSibling != null && "{".equals(prevVisibleSibling.getText())) {
                FunctionDefinitionNode functionDefinitionNode = PsiTreeUtil.getParentOfType(element, FunctionDefinitionNode.class);
                if (functionDefinitionNode != null) {
                    // Todo - change method
                    addOtherTypeAsLookup(result);
                    addXmlnsAsLookup(result);
                    addValueTypesAsLookups(result);
                    addReferenceTypesAsLookups(result);
                    result.addAllElements(getFunctionSpecificKeywords());
                    result.addAllElements(getCommonKeywords());
                    result.addAllElements(getValueKeywords());
                }
                ServiceBodyNode serviceBodyNode = PsiTreeUtil.getParentOfType(element, ServiceBodyNode.class);
                if (serviceBodyNode != null) {
                    result.addAllElements(getServiceSpecificKeywords());
                }
                ConnectorBodyNode connectorBodyNode = PsiTreeUtil.getParentOfType(element, ConnectorBodyNode.class);
                if (connectorBodyNode != null) {
                    result.addAllElements(getConnectorSpecificKeywords());
                }
            } else if (prevVisibleSibling != null && "}".equals(prevVisibleSibling.getText())) {
                result.addAllElements(getFileLevelKeywordsAsLookups(true, false, false));
            }
        }
    }
    if (parent instanceof ResourceDefinitionNode) {
        result.addAllElements(getServiceSpecificKeywords());
    }
    if (parent.getPrevSibling() == null) {
        GlobalVariableDefinitionNode globalVariableDefinitionNode = PsiTreeUtil.getParentOfType(element, GlobalVariableDefinitionNode.class);
        if (globalVariableDefinitionNode != null) {
            PsiElement prevVisibleSibling = PsiTreeUtil.prevVisibleLeaf(element);
            if (prevVisibleSibling != null && !(";".equals(prevVisibleSibling.getText()))) {
                if (!(prevVisibleSibling.getText().matches("[:=]") || prevVisibleSibling instanceof IdentifierPSINode || "create".equals(prevVisibleSibling.getText()))) {
                    if (prevVisibleSibling instanceof LeafPsiElement) {
                        IElementType elementType = ((LeafPsiElement) prevVisibleSibling).getElementType();
                        if (BallerinaParserDefinition.KEYWORDS.contains(elementType)) {
                            return;
                        }
                    }
                    result.addAllElements(getCommonKeywords());
                }
                return;
            }
            PsiElement definitionNode = globalVariableDefinitionNode.getParent();
            PackageDeclarationNode prevPackageDeclarationNode = PsiTreeUtil.getPrevSiblingOfType(definitionNode, PackageDeclarationNode.class);
            ImportDeclarationNode prevImportDeclarationNode = PsiTreeUtil.getPrevSiblingOfType(definitionNode, ImportDeclarationNode.class);
            ConstantDefinitionNode prevConstantDefinitionNode = PsiTreeUtil.getPrevSiblingOfType(definitionNode, ConstantDefinitionNode.class);
            DefinitionNode prevDefinitionNode = PsiTreeUtil.getPrevSiblingOfType(definitionNode, DefinitionNode.class);
            GlobalVariableDefinitionNode prevGlobalVariableDefinition = PsiTreeUtil.findChildOfType(prevDefinitionNode, GlobalVariableDefinitionNode.class);
            if (prevPackageDeclarationNode == null && prevImportDeclarationNode == null && prevConstantDefinitionNode == null && prevGlobalVariableDefinition == null) {
                result.addAllElements(getFileLevelKeywordsAsLookups(true, true, true));
            } else if ((prevPackageDeclarationNode != null || prevImportDeclarationNode != null) && prevConstantDefinitionNode == null && prevGlobalVariableDefinition == null) {
                result.addAllElements(getFileLevelKeywordsAsLookups(true, false, true));
            } else {
                result.addAllElements(getFileLevelKeywordsAsLookups(true, false, false));
            }
            addTypeNamesAsLookups(result);
        }
    }
    if (element instanceof IdentifierPSINode) {
        PsiReference reference = element.findReferenceAt(element.getTextLength());
        if (reference instanceof WorkerReference) {
            result.addAllElements(getWorkerInteractionKeywords());
        }
    }
}

Example 4 with ExpressionNode

use of org.ballerinalang.plugins.idea.psi.ExpressionNode 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 5 with ExpressionNode

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

the class LanguageInjectorUtils method isValid.

/**
 * Checks whether the provided host is suitable for language injecting.
 *
 * @param host          host string to be checked
 * @param packageNames  valid package names
 * @param functionNames valid function names
 * @return {@code true} if suitable for injecting language, {@code false} otherwise.
 */
public static boolean isValid(@NotNull PsiLanguageInjectionHost host, @NotNull Set<String> packageNames, @NotNull Set<String> functionNames) {
    if (!(host instanceof QuotedLiteralString)) {
        return false;
    }
    ExpressionListNode expressionListNode = PsiTreeUtil.getTopmostParentOfType(host, ExpressionListNode.class);
    if (expressionListNode == null) {
        return false;
    }
    PsiElement firstChild = expressionListNode.getFirstChild();
    if (firstChild.getChildren().length > 1) {
        return false;
    }
    FunctionReferenceNode functionReferenceNode = PsiTreeUtil.getPrevSiblingOfType(expressionListNode, FunctionReferenceNode.class);
    if (functionReferenceNode == null) {
        return false;
    }
    PackageNameNode packageNameNode = PsiTreeUtil.getChildOfType(functionReferenceNode, PackageNameNode.class);
    if (packageNameNode == null) {
        return false;
    }
    IdentifierPSINode functionName = PsiTreeUtil.getChildOfType(functionReferenceNode, IdentifierPSINode.class);
    if (functionName == null) {
        return false;
    }
    ExpressionNode expressionNode = PsiTreeUtil.getParentOfType(host, ExpressionNode.class);
    if (expressionNode == null) {
        return false;
    }
    Collection<QuotedLiteralString> quotedLiteralStrings = PsiTreeUtil.findChildrenOfType(expressionNode, QuotedLiteralString.class);
    // We ignore this case since the string might not be identified correctly and will cause issues.
    if (quotedLiteralStrings.size() > 1) {
        return false;
    }
    return packageNames.contains(packageNameNode.getText()) && functionNames.contains(functionName.getText());
}