spread-syntaxassemblyscript

Is the spread operator (...) available in AssemblyScript?

I couldn't find any information about this in the AssemblyScript docs.

Is the spread operator available in AssemblyScript? I would like to define an object like so:

{ ...params, category: "LockupDynamic" }
Solution

  • Checking the current master branch shows that the feature is unimplemented. The compiler throws an error inside compileUnaryPrefixExpression if it encounters a ... token:

      case Token.Dot_Dot_Dot: {
    this.error(
      DiagnosticCode.Not_implemented_0,
      expression.range, "Spread operator"
    );
    return module.unreachable();
  }

    However, rest parameters do seem to be supported, in both the parser and compiler. So you should be able to define a function with a ... parameter, but you cannot use ... to pass arguments to a function.