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

Example 31 with IdentifierPSINode

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

the class EnumFieldReference method resolve.

@Nullable
@Override
public PsiElement resolve() {
    IdentifierPSINode identifier = getElement();
    PsiElement dot = PsiTreeUtil.prevVisibleLeaf(identifier);
    if (dot == null || !".".equals(dot.getText())) {
        return null;
    }
    PsiElement enumReferenceNode = PsiTreeUtil.prevVisibleLeaf(dot);
    if (enumReferenceNode == null) {
        return null;
    }
    PsiReference reference = enumReferenceNode.findReferenceAt(enumReferenceNode.getTextLength());
    if (reference == null) {
        return null;
    }
    PsiElement resolvedElement = reference.resolve();
    if (resolvedElement == null) {
        return null;
    }
    PsiElement resolvedElementParent = resolvedElement.getParent();
    if (!(resolvedElementParent instanceof EnumDefinitionNode)) {
        return null;
    }
    return ((EnumDefinitionNode) resolvedElementParent).resolve(identifier);
}

Example 32 with IdentifierPSINode

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

the class EnumReference method resolve.

@Nullable
@Override
public PsiElement resolve() {
    IdentifierPSINode identifier = getElement();
    PsiElement parent = identifier.getParent();
    PackageNameNode packageNameNode = PsiTreeUtil.getChildOfType(parent, PackageNameNode.class);
    if (packageNameNode == null) {
        return resolveInCurrentPackage(identifier);
    } else {
        return resolveInPackage(packageNameNode, identifier);
    }
}

Example 33 with IdentifierPSINode

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

the class FieldReference method resolve.

@Nullable
@Override
public PsiElement resolve() {
    // Get the current element.
    IdentifierPSINode identifier = getElement();
    // Get the parent element.
    PsiElement parent = identifier.getParent();
    PsiElement prevSibling;
    // resolve multi level structs. Eg: user.name.<caret>
    if (parent instanceof StatementNode) {
        // Get the previous element.
        PsiElement prevVisibleLeaf = PsiTreeUtil.prevVisibleLeaf(parent);
        if (prevVisibleLeaf == null) {
            return null;
        }
        // Previous leaf element should be "." if the references are correctly defined.
        if (!".".equals(prevVisibleLeaf.getText())) {
            return null;
        }
        // Get the prevSibling. This is used to resolve the current field.
        prevSibling = PsiTreeUtil.prevVisibleLeaf(prevVisibleLeaf);
        if (prevSibling == null) {
            return null;
        }
    } else if (parent instanceof NameReferenceNode) {
        prevSibling = PsiTreeUtil.prevVisibleLeaf(parent);
        if (prevSibling != null && ".".equals(prevSibling.getText())) {
            prevSibling = PsiTreeUtil.prevVisibleLeaf(prevSibling);
        }
    } else {
        PsiElement parentPrevSibling = parent.getPrevSibling();
        if (parentPrevSibling != null) {
            if (parentPrevSibling instanceof VariableReferenceNode) {
                PsiElement[] children = parentPrevSibling.getChildren();
                if (children.length <= 0) {
                    return null;
                }
                PsiElement firstChild = children[0].getFirstChild();
                if (firstChild == null) {
                    return null;
                }
                prevSibling = firstChild;
            } else {
                return null;
            }
        } else {
            // If the current statement is correctly resolved, that means all the fields are identified properly.
            // Get the prevSibling. This is used to resolve the current field.
            prevSibling = PsiTreeUtil.prevVisibleLeaf(parent);
        }
    }
    // If the prevSibling is null, we return from this method because we cannot resolve the element.
    if (prevSibling == null) {
        return null;
    }
    // We get the reference at end. This is because struct field access can be multiple levels deep.
    // Eg: user.name.first - If the current node is 'first', then the previous node will be 'user.name'. If
    // we get the reference at the beginning, we we get the reference for 'user'. But we want to resolve the
    // 'name' field first. That is why we get the reference at the end.
    PsiReference variableReference = prevSibling.findReferenceAt(prevSibling.getTextLength());
    if (variableReference == null) {
        return null;
    }
    // Resolve the reference. The resolved element can be an identifier of either a struct of a field
    // depending on the current node.
    // Eg: user.name.firstName - If the current node is 'name', resolved element will be a struct definition. if
    // the current element is 'firstName', then the resolved element will be a field definition.
    PsiElement resolvedElement = variableReference.resolve();
    if (resolvedElement == null || !(resolvedElement instanceof IdentifierPSINode)) {
        return null;
    }
    // Get the parent of the resolved element.
    PsiElement resolvedElementParent = resolvedElement.getParent();
    StructDefinitionNode structDefinitionNode = null;
    // Resolve the corresponding resolvedElementParent to get the struct definition.
    if (resolvedElementParent instanceof VariableDefinitionNode || resolvedElementParent instanceof CodeBlockParameterNode || resolvedElementParent instanceof ParameterNode) {
        // Resolve the Type of the VariableDefinitionNode to get the corresponding struct.
        // Eg: User user = {}
        // In here, "User" is resolved and struct identifier is returned.
        structDefinitionNode = BallerinaPsiImplUtil.resolveStructFromDefinitionNode(resolvedElementParent);
    } else if (resolvedElementParent instanceof FieldDefinitionNode) {
        // If the resolvedElementParent is of type FieldDefinitionNode, that means we need to resolve the type of
        // the field to get the struct definition.
        // Eg: user.name.firstName - In here, if we want to resolve the 'firstName' we will get the 'Name name;'
        // field. So we need to resolve the type of the field which is 'Name'. Then we will get the Name struct.
        // Then we need to get the 'firstName' field from that.
        structDefinitionNode = BallerinaPsiImplUtil.resolveTypeNodeStruct((resolvedElementParent));
    } else if (resolvedElementParent instanceof NameReferenceNode) {
        structDefinitionNode = BallerinaPsiImplUtil.findStructDefinition((IdentifierPSINode) resolvedElement);
    } else if (resolvedElementParent instanceof EnumDefinitionNode) {
        return ((EnumDefinitionNode) resolvedElementParent).resolve(identifier);
    }
    if (structDefinitionNode == null) {
        return null;
    }
    // Resolve the field and return the resolved element.
    return structDefinitionNode.resolve(identifier);
}

Example 34 with IdentifierPSINode

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

the class FunctionReference method resolve.

@Nullable
@Override
public PsiElement resolve() {
    IdentifierPSINode identifier = getElement();
    PsiElement parent = identifier.getParent();
    PackageNameNode packageNameNode = PsiTreeUtil.getChildOfType(parent, PackageNameNode.class);
    if (packageNameNode == null) {
        return resolveInCurrentPackage(identifier);
    } else {
        return resolveInPackage(packageNameNode, identifier);
    }
}

Example 35 with IdentifierPSINode

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

the class FunctionReference method getVariants.

@NotNull
@Override
public Object[] getVariants() {
    List<LookupElement> results = new LinkedList<>();
    IdentifierPSINode identifier = getElement();
    PsiElement parent = identifier.getParent();
    PackageNameNode packageNameNode = PsiTreeUtil.getChildOfType(parent, PackageNameNode.class);
    if (packageNameNode == null) {
        results.addAll(getVariantsFromCurrentPackage());
    } else {
        results.addAll(getVariantsFromPackage(packageNameNode));
    }
    return results.toArray(new LookupElement[results.size()]);
}