import * as d from "../localData";

/**
 * definy の式をデバッグように文字列にする
 */
export const exprToDebugString = (expr: d.Expr): string => {
  switch (expr._) {
    case "Kernel":
      return kernelToString(expr.kernelExpr);
    case "Int32Literal":
      return expr.int32.toString();
    case "PartReference":
      return "[part " + (expr.partId as string) + "]";
    case "TagReference":
      return "[tag " + JSON.stringify(expr.tagReference) + "]";
    case "FunctionCall":
      return (
        "(" +
        exprToDebugString(expr.functionCall.function) +
        " " +
        exprToDebugString(expr.functionCall.parameter)
      );
  }
};

const kernelToString = (kernelExpr: d.KernelExpr): string => {
  switch (kernelExpr) {
    case "Int32Add":
      return "+";
    case "Int32Sub":
      return "-";
    case "Int32Mul":
      return "*";
  }
};