ArrayIndex() [2/3]

static MethodCallExpression System.Linq.Expressions.Expression< TDelegate >.ArrayIndex ( Expression< TDelegate > array, IEnumerable< Expression< TDelegate > > indexes )

inlinestaticinherited

Definition at line 4357 of file Expression.cs.

    {
        ExpressionUtils.RequiresCanRead(array, "array", -1);
        ContractUtils.RequiresNotNull(indexes, "indexes");
        Type type = array.Type;
        if (!type.IsArray)
        {
            throw Error.ArgumentMustBeArray("array");
        }
        ReadOnlyCollection<Expression> readOnlyCollection = indexes.ToReadOnly();
        if (type.GetArrayRank() != readOnlyCollection.Count)
        {
            throw Error.IncorrectNumberOfIndexes();
        }
        int i = 0;
        for (int count = readOnlyCollection.Count; i < count; i++)
        {
            Expression expression = readOnlyCollection[i];
            ExpressionUtils.RequiresCanRead(expression, "indexes", i);
            if (expression.Type != typeof(int))
            {
                throw Error.ArgumentMustBeArrayIndexType("indexes", i);
            }
        }
        MethodInfo arrayGetMethod = TypeUtils.GetArrayGetMethod(array.Type);
        return Call(array, arrayGetMethod, readOnlyCollection);
    }

References System.Linq.Expressions.Error.ArgumentMustBeArray(), System.Linq.Expressions.Error.ArgumentMustBeArrayIndexType(), System.array, System.Linq.Expressions.Call, System.Linq.count, System.Collections.Generic.Dictionary< TKey, TValue >.Count, System.Dynamic.Utils.TypeUtils.GetArrayGetMethod(), System.Linq.Expressions.Error.IncorrectNumberOfIndexes(), System.Dynamic.Utils.ExpressionUtils.RequiresCanRead(), System.Dynamic.Utils.ContractUtils.RequiresNotNull(), and System.type.