Method parseCall

packages/core/src/constraints/parser.ts:208–230

(name: string, namePosition: number)

  }

  private parseCall(name: string, namePosition: number): ExprNode {
    if (!isKnownConstraintFunctionName(name)) {
      this.fail(`Unknown function "${name}"`, namePosition);
    }
    this.expect("(");
    if (name === "steps") return this.parseStepsCall(name);

    const args: ExprNode[] = [];
    this.skipWhitespace();
    if (this.consumeIf(")")) {
      return { kind: "call", name, args: Object.freeze(args) };
    }

    while (true) {
      args.push(this.parseExpr());
      this.skipWhitespace();
      if (this.consumeIf(",")) continue;
      if (this.consumeIf(")")) break;
      this.fail('Expected "," or ")" in function call');
    }

    return { kind: "call", name, args: Object.freeze(args) };
  }

  private parseStepsCall(name: string): ExprNode {
    const args: ExprNode[] = [];