Method normalizeExpression

packages/compiler/src/i18n/i18n_parser.ts:375–383

(token: InterpolationToken | AttributeValueInterpolationToken)

  // Normalize expression whitespace by parsing and re-serializing it. This makes
  // message IDs more durable to insignificant whitespace changes.
  normalizeExpression(token: InterpolationToken | AttributeValueInterpolationToken): string {
    const expression = token.parts[1];
    const expr = this._expressionParser.parseBinding(
      expression,
      /* location */ token.sourceSpan,
      /* absoluteOffset */ token.sourceSpan.start.offset,
    );
    return serializeExpression(expr);
  }
}

/**