Examples with DefinitionTreeVisitor org.ballerinalang.langserver.definition.DefinitionTreeVisitor used on opensource projects

Example 1 with DefinitionTreeVisitor

use of org.ballerinalang.langserver.definition.DefinitionTreeVisitor in project ballerina by ballerina-lang.

the class DefinitionUtil method getDefinitionPosition.

/**
 * Get definition position for the given definition context.
 *
 * @param definitionContext   context of the definition.
 * @param lSPackageCache package context for language server.
 * @return position
 */
public static List<Location> getDefinitionPosition(TextDocumentServiceContext definitionContext, LSPackageCache lSPackageCache) {
    List<Location> contents = new ArrayList<>();
    if (definitionContext.get(NodeContextKeys.SYMBOL_KIND_OF_NODE_KEY) == null) {
        return contents;
    }
    String nodeKind = definitionContext.get(NodeContextKeys.SYMBOL_KIND_OF_NODE_KEY);
    BLangPackage bLangPackage = getPackageOfTheOwner(definitionContext.get(NodeContextKeys.NODE_OWNER_PACKAGE_KEY), definitionContext, lSPackageCache);
    BLangNode bLangNode = null;
    switch(nodeKind) {
        case ContextConstants.FUNCTION:
            bLangNode = bLangPackage.functions.stream().filter(function -> function.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.STRUCT:
            bLangNode = bLangPackage.structs.stream().filter(struct -> struct.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.OBJECT:
            bLangNode = bLangPackage.objects.stream().filter(object -> object.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.ENUM:
            bLangNode = bLangPackage.enums.stream().filter(enm -> enm.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            // Fixing the position issue with enum node.
            bLangNode.getPosition().eLine = bLangNode.getPosition().sLine;
            bLangNode.getPosition().eCol = bLangNode.getPosition().sCol;
            break;
        case ContextConstants.CONNECTOR:
            bLangNode = bLangPackage.connectors.stream().filter(bConnector -> bConnector.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.ACTION:
            bLangNode = bLangPackage.connectors.stream().filter(bConnector -> bConnector.name.getValue().equals(((BLangInvocation) definitionContext.get(NodeContextKeys.PREVIOUSLY_VISITED_NODE_KEY)).symbol.owner.name.getValue())).flatMap(connector -> connector.actions.stream()).filter(bAction -> bAction.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.TRANSFORMER:
            bLangNode = bLangPackage.transformers.stream().filter(bTransformer -> bTransformer.name.getValue().equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            break;
        case ContextConstants.ENDPOINT:
            bLangNode = bLangPackage.globalEndpoints.stream().filter(globalEndpoint -> globalEndpoint.name.value.equals(definitionContext.get(NodeContextKeys.NAME_OF_NODE_KEY))).findAny().orElse(null);
            if (bLangNode == null) {
                DefinitionTreeVisitor definitionTreeVisitor = new DefinitionTreeVisitor(definitionContext);
                definitionContext.get(NodeContextKeys.NODE_STACK_KEY).pop().accept(definitionTreeVisitor);
                if (definitionContext.get(NodeContextKeys.NODE_KEY) != null) {
                    bLangNode = definitionContext.get(NodeContextKeys.NODE_KEY);
                }
            }
            break;
        case ContextConstants.VARIABLE:
            bLangNode = bLangPackage.globalVars.stream().filter(globalVar -> globalVar.name.getValue().equals(definitionContext.get(NodeContextKeys.VAR_NAME_OF_NODE_KEY))).findAny().orElse(null);
            // BLangNode is null only when node at the cursor position is a local variable.
            if (bLangNode == null) {
                DefinitionTreeVisitor definitionTreeVisitor = new DefinitionTreeVisitor(definitionContext);
                definitionContext.get(NodeContextKeys.NODE_STACK_KEY).pop().accept(definitionTreeVisitor);
                if (definitionContext.get(NodeContextKeys.NODE_KEY) != null) {
                    bLangNode = definitionContext.get(NodeContextKeys.NODE_KEY);
                    break;
                }
            }
            break;
        default:
            break;
    }
    if (bLangNode == null) {
        return contents;
    }
    Location l = new Location();
    TextDocumentPositionParams position = definitionContext.get(DocumentServiceKeys.POSITION_KEY);
    Path parentPath = CommonUtil.getPath(new LSDocument(position.getTextDocument().getUri())).getParent();
    if (parentPath != null) {
        String fileName = bLangNode.getPosition().getSource().getCompilationUnitName();
        Path filePath = Paths.get(CommonUtil.getPackageURI(definitionContext.get(NodeContextKeys.PACKAGE_OF_NODE_KEY).name.getValue(), parentPath.toString(), definitionContext.get(NodeContextKeys.PACKAGE_OF_NODE_KEY).name.getValue()), fileName);
        l.setUri(filePath.toUri().toString());
        Range r = new Range();
        // Subtract 1 to convert the token lines and char positions to zero based indexing
        r.setStart(new Position(bLangNode.getPosition().getStartLine() - 1, bLangNode.getPosition().getStartColumn() - 1));
        r.setEnd(new Position(bLangNode.getPosition().getEndLine() - 1, bLangNode.getPosition().getEndColumn() - 1));
        l.setRange(r);
        contents.add(l);
    }
    return contents;
}