Class GenericKeyFn

packages/compiler/src/constant_pool.ts:234–278

}

export class GenericKeyFn implements ExpressionKeyFn {
  static readonly INSTANCE = new GenericKeyFn();

  keyOf(expr: o.Expression): string {
    if (expr instanceof o.LiteralExpr && typeof expr.value === 'string') {
      return `"${expr.value}"`;
    } else if (expr instanceof o.LiteralExpr) {
      return String(expr.value);
    } else if (expr instanceof o.RegularExpressionLiteralExpr) {
      return `/${expr.body}/${expr.flags ?? ''}`;
    } else if (expr instanceof o.LiteralArrayExpr) {
      const entries: string[] = [];
      for (const entry of expr.entries) {
        entries.push(this.keyOf(entry));
      }
      return `[${entries.join(',')}]`;
    } else if (expr instanceof o.LiteralMapExpr) {
      const entries: string[] = [];
      for (const entry of expr.entries) {
        if (entry instanceof o.LiteralMapSpreadAssignment) {
          entries.push('...' + this.keyOf(entry.expression));
        } else {
          let key = entry.key;
          if (entry.quoted) {
            key = `"${key}"`;
          }
          entries.push(key + ':' + this.keyOf(entry.value));
        }
      }
      return `{${entries.join(',')}}`;
    } else if (expr instanceof o.ExternalExpr) {
      return `import("${expr.value.moduleName}", ${expr.value.name})`;
    } else if (expr instanceof o.ReadVarExpr) {
      return `read(${expr.name})`;
    } else if (expr instanceof o.TypeofExpr) {
      return `typeof(${this.keyOf(expr.expr)})`;
    } else if (expr instanceof o.SpreadElementExpr) {
      return `...${this.keyOf(expr.expression)}`;
    } else {
      throw new Error(
        `${this.constructor.name} does not handle expressions of type ${expr.constructor.name}`,
      );
    }
  }
}

function isLongStringLiteral(expr: o.Expression): boolean {
  return (