Function visitLocalizedString

packages/compiler/src/output/abstract_js_emitter.ts:90–111

(ast: o.LocalizedString, ctx: EmitterVisitorContext)

  }

  override visitLocalizedString(ast: o.LocalizedString, ctx: EmitterVisitorContext): void {
    // The following convoluted piece of code is effectively the downlevelled equivalent of
    // ```
    // $localize `...`
    // ```
    // which is effectively like:
    // ```
    // $localize(__makeTemplateObject(cooked, raw), expression1, expression2, ...);
    // ```
    ctx.print(ast, `$localize(${makeTemplateObjectPolyfill}(`);
    const parts = [ast.serializeI18nHead()];
    for (let i = 1; i < ast.messageParts.length; i++) {
      parts.push(ast.serializeI18nTemplatePart(i));
    }
    ctx.print(ast, `[${parts.map((part) => escapeIdentifier(part.cooked)).join(', ')}], `);
    ctx.print(ast, `[${parts.map((part) => escapeIdentifier(part.raw)).join(', ')}])`);
    ast.expressions.forEach((expression) => {
      ctx.print(ast, ', ');
      expression.visitExpression(this, ctx);
    });
    ctx.print(ast, ')');
  }
}