Method parseStepsCall

packages/core/src/constraints/parser.ts:232–262

(name: string)

  }

  private parseStepsCall(name: string): ExprNode {
    const args: ExprNode[] = [];
    this.skipWhitespace();
    if (this.consumeIf(")")) {
      this.fail('steps() requires at least one "threshold: value" pair');
    }

    args.push(this.parseExpr());
    let pairCount = 0;

    while (true) {
      this.skipWhitespace();
      if (!this.consumeIf(",")) break;
      this.skipWhitespace();
      const threshold = this.parseStepThreshold();
      this.skipWhitespace();
      if (!this.consumeIf(":")) {
        this.fail('Expected ":" in steps() threshold:value pair');
      }
      const valueExpr = this.parseExpr();
      args.push({ kind: "number", value: threshold }, valueExpr);
      pairCount++;
    }

    this.skipWhitespace();
    if (!this.consumeIf(")")) this.fail('Expected ")" after steps()');
    if (pairCount === 0) {
      this.fail('steps() requires at least one "threshold: value" pair');
    }
    return { kind: "call", name, args: Object.freeze(args) };
  }

  private parseStepThreshold(): number {
    const token = this.parseNumberNode();