Function fxRestBindingFromExpression

xs/sources/xsSyntaxical.c:3900–3931

}

txNode* fxRestBindingFromExpression(txParser* parser, txNode* theNode, txToken theToken, txUnsigned flag)
{
	txNode* expression = ((txSpreadNode*)theNode)->expression;
	txNode* binding;
	if (theNode->next) {
		parser->errorSymbol = parser->SyntaxErrorSymbol;
		return NULL;
	}
	if (!expression)
		return NULL;
/* 	if ((theToken == XS_TOKEN_BINDING) && ((expression->description->token == XS_TOKEN_MEMBER) || (expression->description->token == XS_TOKEN_MEMBER_AT)))
 		binding = expression;
 	else */
 	{
		binding = fxBindingFromExpression(parser, expression, theToken);
		if (!binding) {
			parser->errorSymbol = parser->SyntaxErrorSymbol;
			return NULL;
		}
		if (binding->description->token == XS_TOKEN_BINDING) {
			fxReportParserError(parser, parser->states[0].line, "invalid rest");
			return NULL;
		}
		if (flag && ((binding->description->token == XS_TOKEN_ARRAY_BINDING) || (binding->description->token == XS_TOKEN_OBJECT_BINDING))) {
			fxReportParserError(parser, parser->states[0].line, "invalid rest");
			return NULL;
		}
 	}
	theNode->description = &gxTokenDescriptions[XS_TOKEN_REST_BINDING];
	((txRestBindingNode*)theNode)->binding = binding;
	return theNode;
}

void fxCheckArrowFunction(txParser* parser, txInteger count)
{