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Build Your Own .NET Language and Compiler by Edward G. Nilges

Build Your Own .NET Language and Compiler Edward G. Nilges ebook
ISBN: 1590591348, 9781590591345
Format: chm
Page: 408
Publisher: Apress

Our goal is to make the open web a compelling virtual machine, a target for compiling other languages and platforms. The brackets contain variables which map to a .NET class that defines them. The C++ standard library follows NVI nearly universally, and other modern OO languages and environments have rediscovered this principle for their own library design guidelines, such as in the .NET Framework Design Guidelines. Net are also leveraging powerful .Net platform capabilities, on Windows. You don't test the .NET StreamWriter class to make sure it writes to a stream; you test the code you've written to make sure it writes the right thing to the stream. Chapter 5, "Object-Oriented Programming," delves into the third pillar that is encompassed in F# as this chapter explores the model that allows you to create classes, interfaces, and objects in F#. If you write override but there is no matching base class function, or you write final and a further-derived class tries to implicitly or explicitly override the function anyway, you get a compile-time error. This applies to all language features, standard library functions and classes, and public APIs. If you have worthless tests covering essentially non-functional code, then neither the compiler nor your coverage tool will ever be able to say “this property doesn't appear to be used by anything”. The great thing about writing a compiler is you can make up your own language. Chapter 6, "Organizing, Annotating, and Quoting Chapter 12, "Language-Oriented Programming," examines using F# to create little languages or a Domain-specific Language and then you will create a compiler and interpreter for an arithmetic language. In this first release, we're focused on compiling low-level code like C and C++.