Class CloneVisitor

packages/compiler/src/i18n/i18n_ast.ts:198–251

// Clone the AST
export class CloneVisitor implements Visitor {
  visitText(text: Text, context?: any): Text {
    return new Text(text.value, text.sourceSpan);
  }

  visitContainer(container: Container, context?: any): Container {
    const children = container.children.map((n) => n.visit(this, context));
    return new Container(children, container.sourceSpan);
  }

  visitIcu(icu: Icu, context?: any): Icu {
    const cases: {[k: string]: Node} = {};
    Object.keys(icu.cases).forEach((key) => (cases[key] = icu.cases[key].visit(this, context)));
    const msg = new Icu(icu.expression, icu.type, cases, icu.sourceSpan, icu.expressionPlaceholder);
    return msg;
  }

  visitTagPlaceholder(ph: TagPlaceholder, context?: any): TagPlaceholder {
    const children = ph.children.map((n) => n.visit(this, context));
    return new TagPlaceholder(
      ph.tag,
      ph.attrs,
      ph.startName,
      ph.closeName,
      children,
      ph.isVoid,
      ph.sourceSpan,
      ph.startSourceSpan,
      ph.endSourceSpan,
    );
  }

  visitPlaceholder(ph: Placeholder, context?: any): Placeholder {
    return new Placeholder(ph.value, ph.name, ph.sourceSpan);
  }

  visitIcuPlaceholder(ph: IcuPlaceholder, context?: any): IcuPlaceholder {
    return new IcuPlaceholder(ph.value, ph.name, ph.sourceSpan);
  }

  visitBlockPlaceholder(ph: BlockPlaceholder, context?: any): BlockPlaceholder {
    const children = ph.children.map((n) => n.visit(this, context));
    return new BlockPlaceholder(
      ph.name,
      ph.parameters,
      ph.startName,
      ph.closeName,
      children,
      ph.sourceSpan,
      ph.startSourceSpan,
      ph.endSourceSpan,
    );
  }
}

// Visit all the nodes recursively
export class RecurseVisitor implements Visitor {