Why would I need to compile/generate methods/code at runtime?

Why would I need to compile/generate methods/code at runtime?

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Why would I need to compile/generate methods/code at runtime?
Tag : chash , By : janik
Date : November 24 2020, 01:01 AM

wish helps you In Ruby, methods that generate methods are used everywhere.
For example, there are methods for generating setter and getter methods:
class Module
  def attr_reader(*attributes)
    attributes.each do |attribute|
      define_method(attribute) do instance_variable_get(:"@#{attribute}") end

  def attr_writer(*attributes)
    attributes.each do |attribute|
      define_method(:"#{attribute}=") do |value|
        instance_variable_set(:"@#{attribute}", value)

  def attr_accessor(*attributes)
attr_reader :bla
attr_writer :bla
class Foo
  attr_reader   :foo,    :bar
  attr_writer   :baz,    :quux
  attr_accessor :gargle, :blarf

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Is it possible to generate a list of all marked strings in c# at compile time/runtime?

Tag : chash , By : ussballantyne
Date : March 29 2020, 07:55 AM
will help you I have a project that actually does the exact same thing. Only the translation parser is itself written in C# (it's name is c3po). In addition to parsing the project, c3po is also responsible for generating files to send to the translation vendor as well as generating the files that the .net project uses to store the translated strings. We found it has several advantages over the "traditional" .Net resource files:
1) because c3po maintains it's own internal database of localized strings we can keep track of our own translation memory and make sure to only send new strings to the translators every month. It also removes strings that are no longer needed. This has saved us literary thousands of dollars in translation costs.

How to generate, compile and run CUDA kernels at runtime

Tag : cuda , By : jsmb
Date : March 29 2020, 07:55 AM
around this issue In his comment, Roger Dahl has linked the following post
Passing the PTX program to the CUDA driver directly
ss << "extern \"C\" __global__ void kernel( ";
ss << def_line.str() << ", unsigned int vector_size, unsigned int number_of_used_threads ) { \n";
ss << "\tint idx = blockDim.x * blockIdx.x + threadIdx.x; \n";
ss << "\tfor(unsigned int i = 0; i < ";
ss << "(vector_size + number_of_used_threads - 1) / number_of_used_threads; ++i) {\n";
ss << "\t\tif(idx < vector_size) { \n";
ss << "\t\t\t" << eval_line.str() << "\n";
ss << "\t\t\tidx += number_of_used_threads;\n";
ss << "\t\t}\n";
ss << "\t}\n";
ss << "}\n\n\n\n";
int nvcc_exit_status = system(
         (std::string(NVCC) + " -ptx " + NVCC_FLAGS + " " + kernel_filename 
              + " -o " + kernel_comp_filename).c_str()

    if (nvcc_exit_status) {
            std::cerr << "ERROR: nvcc exits with status code: " << nvcc_exit_status << std::endl;
    result = cuModuleLoad(&cuModule, kernel_comp_filename.c_str());
    assert(result == CUDA_SUCCESS);
    result =  cuModuleGetFunction(&cuFunction, cuModule, "kernel");
    assert(result == CUDA_SUCCESS);

Generate methods at runtime in emberJS

Tag : javascript , By : Amin Amini
Date : March 29 2020, 07:55 AM
Any of those help You're defining that as a property on the controller, but trying to use it as a local variable in your defineAttributes method. Change that to a local variable in the method and it should work fine. Or even better yet, just use Coffeescript's fat arrow function to maintain the current value of this:
defineAttributes: (->
    ['unsubmitted', 'submitted', 'cancelled'].forEach (f) =>
        Em.defineProperty this, f, Em.computed.filterBy('model', f, true)

Why does this code using UndecidableInstances compile, then generate a runtime infinite loop?

Tag : haskell , By : snk
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I wholeheartedly agree that this is a great question. It speaks to how our intuitions about typeclasses differ from the reality.
Typeclass surprise
data X

class Convert a b where
  convert :: a -> b

instance (Convert a X, Convert X b) => Convert a b where
  convert = convert . (convert :: a -> X)

evil :: a -> b
evil = convert
class Loop a where
  loop :: a

instance Loop a => Loop a where
  loop = loop
Constraint is no smaller than the instance head
  in the constraint: Convert a X
(Use UndecidableInstances to permit this)
In the instance declaration for ‘Convert a b’

Constraint is no smaller than the instance head
  in the constraint: Convert X b
(Use UndecidableInstances to permit this)
In the instance declaration for ‘Convert a b’
convertXX :: X -> X
convertXX = convertXX . convertXX
convertAB :: A -> B
convertAB =
  convertXB . convertAX
    convertAX = convertXX . convertAX
    convertXX = convertXX . convertXX
    convertXB = convertXB . convertXX

Add/Generate Methods at Compile Time

Tag : java , By : WellBeing
Date : March 29 2020, 07:55 AM
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