// Subscript or "array indexing" operator like `foo[bar]`.
private static void Subscript(Compiler c, bool allowAssignment)
{
Signature signature = new Signature { Name = "", Length = 0, Type = SignatureType.Subscript, Arity = 0 };
// Parse the argument list.
c.FinishArgumentList(signature);
c.Consume(TokenType.RightBracket, "Expect ']' after arguments.");
if (c.Match(TokenType.Eq))
{
if (!allowAssignment) c.Error("Invalid assignment.");
signature.Type = SignatureType.SubscriptSetter;
// Compile the assigned value.
c.ValidateNumParameters(++signature.Arity);
c.Expression();
}
c.CallSignature(Instruction.Call0, signature);
}
