runtime | 易学教程

Is it possible to create/execute code in run-time in C#?

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问题 I know you can dynamically create a .NET assembly using Emit, System.Reflection and manually created IL code as shown here. But I was wondering is it possible to dynamically create and execute C# code block real-time, in a running application. Thanks for any input or ideas. Edit: As I understand CodeDOM allows you to compile C# code into EXE file rather than "just" executing it. Here's some background information and why (as far as I can tell) this isn't the best option for me. I'm creating

How does the GHC garbage collector / runtime know that it can create an array `inplace'

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问题 For example main = do let ls = [0..10000000] print ls This will create the array 'inplace', using O(1) memory. The following edit causes the program to run out of memory while executing. main = do let ls = [0..10000000] print ls print ls ls in this case must be kept in memory to be printed again. It would actually be heaps more memory efficient to recalculate the array again 'inplace' than to try to keep this in place. That's an aside though. My real question is "how and when does GHC

how to compile objective-c source code with clang in mingw64-x86 via apple libobjc.dll?

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i have a problem when compile objective-c source code on windows platform. of course compile objective-c source code on windows platform , we usually using gnustep environment(gcc objecitve-c compiler . gnustep libojc dynamic library . gnustep foundation framework ... and so on). but i want a clean environment try compiler objective-c , and use a different libobjc library. since mac os x 10.6 . apple move macosx system to x86 platform(no ppc support any more) , AND REWRITE system application by cocoa tech.include iTunes. and iTunes have windows version. by searching system folders after

Linux下安装.NET Core

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环境 { "操作系统":"CentOS 7.5 64位", "CPU":"1核", "内存":"2GB", "公网带宽":"1Mbps" } 0.[校验]先查看系统是否已经安装了dotnet [root@VM_0_12_centos /]# dotnet -bash: dotnet: command not found 如果返回"command not found",继续看下去, 如果已经安装了dotnet,请关闭本页面. 1.[先决条件]查看 yum 版本号 [root@VM_0_12_centos /]# yum --version 3.4.3 [root@VM_0_12_centos /]# yum update //省略N多代码... Complete! 关yum啥事情? 1.看了篇博客,说要更新下yum版本,所以我查看了下yum的版本, 紧接着不管现在的版本号,就更新了yum的版本... 2.微软官方文档上也是用yum这种方式来进行安装的. This article describes how to use a package manager to install .NET Core on CentOS 7. 2.[正式开始.热身阶段]开始之前,先需要做以下准备 Register the Microsoft key register the product

Adding Project reference programmatically

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问题 Basically, after read a couple links, i tried the above code: foreach (EnvDTE.Project proj in soln.Projects) { if (proj.Name == "BLL") { VSLangProj.VSProject vsproj = (VSLangProj.VSProject)proj.Object; vsproj.References.Add(@"C:\Teste\DAL\bin\Debug\DAL.dll"); } } All paths, project names, are hard-coded on purpouse, since im still testing how to achieve it. Though it would act like if i did Project folder -> References -> Add reference -> Pick one, manually (compile time) but after loading

Is mixing runtimes a viable solution?

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问题 At my company, we recently switched from VC9 to VC10. We migrated our projects but then, the person in charge told us we would have to keep some base common DLLs compiled with VC9 on our production machines for some time. These DLLs make use of custom structures, some of which contain std::vector , std::map and so on. Now, it has come to my attention that the size of standard containers changed: some got bigger, some got smaller. As a result, the size of our custom structures changed as well.

How do I load a Class Library DLL at runtime and run a class function using VB.NET?

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Say I've a class like this inside a class library project called SomeClass- Public Class SomeClass Public Function DoIt() as String Return "Do What?" End Function End Class I get a SomeClass.dll which I want to load at runtime from another Windows Forms Application, and then have it call the DoIt() function and show it's value in a messagebox or something. How do I do that? I suggest to make DoIt shared, since it does not require class state: Public Class SomeClass Public Shared Function DoIt() as String Return "Do What?" End Function End Class Then calling it is easy: ' Loads SomeClass.dll

How can I change annotations/Hibernate validation rules at runtime?

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If have a Java class with some fields I want to validate using Hibernate Validator. Now I want my users to be able to configure at runtime which validations take place. For example: public class MyPojo { ... @NotEmpty String void getMyField() { ... } ... } Let's say I want to remove the NotEmpty check or replace it with Email or CreditCardNumber , how can I do it? Is it even possible? I guess it comes down to changing annotations at runtime... You can't do it normally. Here's what I've done to get more dynamic validations working via Hibernate Validator. Extend the ClassValidator class.

Create function call dynamically in C++

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问题 Hello people I hope you an help me out with this problem: I am currently implementing an interpreter for a scripting language. The language needs a native call interface to C functions, like java has JNI. My problem is, that i want to call the original C functions without writing a wrapper function, which converts the call stack of my scripting language into the C call stack. This means, that I need a way, to generate argument lists of C functions at runtime. Example: void a(int a, int b) {

Creating TWebBrowser in Runtime with Delphi

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问题 I have a TWebBrowser object which is created in runtime and used in background, that is, not visible. The problem is that events like OnDocumentComplete dont work or are not triggered in Delphi2009. Any advice? procedure TfrmMain.FormCreate(Sender: TObject); begin FWebBrowser:= TWebBrowser.Create(Self); FWebBrowser.RegisterAsBrowser:= True; FWebBrowser.OnDocumentComplete:= WhenDocIsCompleted; end; procedure TfrmMain.WhenDocIsCompleted(ASender: TObject; const pDisp: IDispatch; var URL: