Method extractProperty

src/extraction/tree-sitter.ts:1992–2046

* Extract a class property declaration (e.g. C# `public string Name { get; set; }`). * Extracts as 'property' kind node inside the owning class.

(node: SyntaxNode)

   * Extracts as 'property' kind node inside the owning class.
   */
  private extractProperty(node: SyntaxNode): Node | null {
    if (!this.extractor) return null;

    const docstring = getPrecedingDocstring(node, this.source);
    const visibility = this.extractor.getVisibility?.(node);
    const isStatic = this.extractor.isStatic?.(node) ?? false;

    const hookName = this.extractor.extractPropertyName?.(node, this.source);
    // JS `field_definition` names its key the `property` field (TS uses
    // `name`) — try both before the generic identifier scan (#808).
    const nameNode = hookName
      ? null
      : getChildByField(node, 'name') ||
        getChildByField(node, 'property') ||
        node.namedChildren.find(c => c.type === 'identifier');
    const name = hookName ?? (nameNode ? getNodeText(nameNode, this.source) : null);
    if (!name) return null;

    // Get property type. TS/JS field definitions carry an explicit `type`
    // field (a `type_annotation`); their other named children are the name
    // and the initializer VALUE, which the generic finder below would
    // wrongly pick — so fields use the type field only (#808). Other
    // languages (C# property_declaration) keep the generic scan.
    const isTsJsField =
      node.type === 'public_field_definition' || node.type === 'field_definition';
    const typeNode = isTsJsField
      ? getChildByField(node, 'type')
      : node.namedChildren.find(
          c => c.type !== 'modifier' && c.type !== 'modifiers'
            && c.type !== 'identifier' && c.type !== 'accessor_list'
            && c.type !== 'accessors' && c.type !== 'equals_value_clause'
        );
    const typeText = typeNode
      ? getNodeText(typeNode, this.source).replace(/^:\s*/, '')
      : undefined;
    const signature = typeText ? `${typeText} ${name}` : name;

    const propNode = this.createNode('property', name, node, {
      docstring,
      signature,
      visibility,
      isStatic,
    });

    // `@Inject() private svc: Foo` and similar — capture the
    // decorator->target relationship for class properties too.
    if (propNode) {
      this.extractDecoratorsFor(node, propNode.id);
      // Emit `references` edges from the property to types named in its
      // type annotation (#381). The generic walker handles TS-style
      // `type_annotation` children; the C# branch walks the `type` field.
      this.extractTypeAnnotations(node, propNode.id);
    }
    return propNode;
  }

  /**
   * Extract a class field declaration (e.g. Java field_declaration, C# field_declaration).