CodeGraph/docs
Section 2.6.3

Instantiation Resolution

Extracting object construction via new expressions and attributing source ownership to variable declarations and function return statements.

Source: server/src/parser/extractors/RelationshipExtractor.ts

Source Attribution for `NewExpression`

When an object is instantiated with new Foo(), CodeGraph determines the appropriate source entity:

server/src/parser/extractors/RelationshipExtractor.ts
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private resolveSourceSymbolForInstantiates(parsedFile: ParsedFile, path: NodePath<NewExpression>): ParsedSymbol | undefined {
    // Case 1: Assigned to a variable (e.g., const client = new RedisClient())
    if (path.parentPath?.isVariableDeclarator()) {
        return this.findSymbolForNode(parsedFile, path.parentPath.node);
    }

    // Case 2: Returned from a function (e.g., return new UserSession())
    if (path.parentPath?.isReturnStatement()) {
        return this.symbolStack.at(-1); // Active enclosing function/method
    }

    return undefined; // Arbitrary inline argument instantiations are skipped
}

Target Class Binding

The callee must be a named identifier (e.g., new AppService()). The extractor resolves the class binding in the current file scope or across imported modules to create:

(sourceSymbol) --[instantiates]--> (classSymbol)
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2.6.2 Inheritance & Implementation
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2.6.4 Import Resolution & 5-Step Waterfall