在运行时使用Emit的C#数组 [英] C# array at runtime using emit

问题描述

大家好，我正在C#编译器上工作，到目前为止，我不得不制作数组.现在我已经尝试过opcodes.newarr，并且工作得还不错，但是我的问题是我想以[，]而不是[] []的类型发出一个数组，然后移到opcodes.newobj那里，但是我不知何故无法使其工作:(

原因是我想在newarr上使用newobj是因为我想说8个三维数组(只是被高估了:p)，即使您很少会使用3个以上的数组，但我想保证如果有的话可以使它变大数组是可能的.

到目前为止，解析器上的内容是:

Hi all im working on a C# compiler and i''ve reached this far that i have to make arrays. now i''ve tried opcodes.newarr and that works somewhat fine but my problem is that i would like to emit a array at type [,] and not[][] and have there by moved on to opcodes.newobj but somehow i cant make it work :(

The reason is i wanna use newobj over newarr is that i wanna make lets say 8 dimentional arrays (just to be over rated :p) even that you rarely would use more than 3 but i wanna be safe that if some ever would make such big array it is possible.

what i have so far is on the parser is:

Arrays a = new Arrays(); //Arrays is a class with "Array" in it
a.array = Array.CreateInstance(value, dimensionsize.ToArray()); //value is a system.type and dimensiomsize is a list where all int array leght is so if it have 4 values and value is of type int the array type is int[,,,]

和代码生成器:

And the codegenerator:

il.Emit(OpCodes.Newobj, typeof(array)); //the "array" is the stored declared array from above

我也将数组存储在具有ident等的localbuilder中，所以我非常确定它的发射器在...上做错了什么...

如果有人可以帮助我，我会很高兴:)谢谢-Jackie

i''ve also stored the array in a localbuilder with ident etc. so im very sure its the emiter im doing something wrong at...

If someone could help me out i would be happy :) thanks - Jackie

推荐答案

如果我明白你想做什么，我不相信这是可能的.您要执行的操作类似于锯齿状数组: http://msdn.microsoft.com/en-us /library/2s05feca.aspx [ ^ ]

If I understand what you want to do, I do not beleive it is possible. What you want to do is similar to jagged arrays: http://msdn.microsoft.com/en-us/library/2s05feca.aspx[^]

我在数组中添加了一些内容，并将此代码添加到了代码生成器中，现在可以正常使用了:)

I made a few addition to my Arrays and added this code in the codegenerator and it works just fine now :)

Arrays arr = (Arrays)value;
deliveredType = arr.array.GetType();
Type myType = arr.array.GetType();
Type[] types = new Type[arr.dimensions.Length];
for (int i = 0; i < arr.dimensions.Length; i++)
{
    types[i] = arr.type;
    il.Emit(OpCodes.Ldc_I4, arr.dimensions[i]);
}

ConstructorInfo constructorInfoObj = myType.GetConstructor(types);


il.Emit(OpCodes.Newobj, constructorInfoObj);

这篇关于在运行时使用Emit的C#数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！