ConstructorAttribute.ts

const { NonterminalKind, TerminalNode } = await import(
  '@nomicfoundation/slang/cst'
);
import { SlangNode } from './SlangNode.js';
import { ModifierInvocation } from './ModifierInvocation.js';

import type * as ast from '@nomicfoundation/slang/ast';
import type { AstPath, Doc, ParserOptions } from 'prettier';
import type { AstNode } from './types.d.ts';
import type { PrintFunction } from '../types.d.ts';

export class ConstructorAttribute extends SlangNode {
  readonly kind = NonterminalKind.ConstructorAttribute;

  variant: ModifierInvocation | string;

  constructor(ast: ast.ConstructorAttribute, options: ParserOptions<AstNode>) {
    super(ast);

    this.variant =
      ast.variant instanceof TerminalNode
        ? ast.variant.unparse()
        : new ModifierInvocation(ast.variant, options);

    if (typeof this.variant !== 'string') this.updateMetadata(this.variant);
  }

  print(path: AstPath<ConstructorAttribute>, print: PrintFunction): Doc {
    return typeof this.variant === 'string'
      ? this.variant
      : path.call(print, 'variant');
  }
}