GetByRefArrayExpression() protected method

Gets an expression that evaluates to the result of GetByRefArray operation.
protected GetByRefArrayExpression ( Expression argumentArrayExpression ) : Expression
argumentArrayExpression System.Linq.Expressions.Expression
return System.Linq.Expressions.Expression
OverloadResolver Class Documentation
示例#1
0
        internal override Expression ToExpression(OverloadResolver resolver, IList<ArgBuilder> builders, RestrictedArguments args, Expression ret) {
            if (_returnArgs.Count == 1) {
                if (_returnArgs[0] == -1) {
                    return ret;
                }
                return Ast.Block(ret, builders[_returnArgs[0]].ToReturnExpression(resolver));
            }

            Expression[] retValues = new Expression[_returnArgs.Count];
            int rIndex = 0;
            bool usesRet = false;
            foreach (int index in _returnArgs) {
                if (index == -1) {
                    usesRet = true;
                    retValues[rIndex++] = ret;
                } else {
                    retValues[rIndex++] = builders[index].ToReturnExpression(resolver);
                }
            }

            Expression retArray = AstUtils.NewArrayHelper(typeof(object), retValues);
            if (!usesRet) {
                retArray = Ast.Block(ret, retArray);
            }

            return resolver.GetByRefArrayExpression(retArray);
        }