Passing an array to a custom function

[sheuvi21]

Can I pass an array to the function that I added to the gpu instance?
I added it like this:
gpu.addFunction(simpson, ["Number", "Number", "Array"]);
I got it in the shader's code:
float simpson(float user_myh, float user_nn, sampler2D user_arr) {
But when I try to access an array element:
get(user_arr, vec2(user_arrSize[0],user_arrSize[1]), vec3(user_arrDim[0],user_arrDim[1],user_arrDim[2]), 1.0)
user_arrSize and user_arrDim are not defined.
How to fix this problem?

Earlier I fixed addFunction, replaced:
this.addFunctionNode(new this.Node(functionName, jsFunction, paramTypes, returnType).setAddFunction(this.addFunction.bind(this)));
with
this.addFunctionNode(new this.Node(functionName, jsFunction, null, paramTypes, returnType).setAddFunction(this.addFunction.bind(this)));
in the file gpu.js line 1057.
Because of the BaseFunctionNode signature is:
function BaseFunctionNode(functionName, jsFunction, options, paramTypes, returnType) {
I think it was a bug.

[sheuvi21]

Maybe I used the wrong English expressions, please let me know so that I can clarify the incomprehensible moments.

[robertleeplummerjr]

Can you share the source of simpson? That may help to better know how to help.

[sheuvi21]

This is the source of the simpson function: simpson.txt

The source of this function in the shader: shader_simpson.txt

This error occurs:
An error occurred compiling the shaders: ERROR: 0:134: 'user_arrSize' : undeclared identifier

[sheuvi21]

I went back to this code and found that the error occurs with multidimensional arrays. I wrote a simple code that demonstrates this error.
-> simple.txt

Here's an error:

An error occurred compiling the shaders: ERROR: 0:130: 'get' : no matching overloaded function found