C# Language Internals - Part 1
C# Language Internals is designed to give you a deeper understanding of the C# programming language and the CLR.
What you'll learn
This course takes .NET developers behind the scenes of C# language features to gain a deeper understanding of the language, the Intermediate Language (IL) it compiles into, and the Common Language Runtime (CLR) it runs on. By studying language internals, you can make well-informed design choices, solve hard debugging puzzles quicker, and understand the performance ramifications of using various language features. This is the first part of a two-part course.
Table of contents
- Introduction to Intermediate Language (IL) 3m
- Essential IL Instructions 2m
- Local Variables in IL 5m
- Basic IL Instructions and Branches 4m
- Analyzing Branches in ILDASM 3m
- Call Instructions and Call Stacks 5m
- Exceptions, Objects, and Arrays 4m
- The Role of JIT Compilation 7m
- Seeing JIT Compilation in Action in WinDbg 5m
- JIT Optimizations 2m
- Summary 1m
- Overview of C# Compiler Settings 2m
- Optimization Techniques used by the C# Compiler 4m
- Branch Optimizations 3m
- Inspecting Branching for Loops in ILDASM 4m
- Specifying Compilation Targets 3m
- Inside Windows Runtime Modules 2m
- Constraining Target Platform Architectures 5m
- Language Versions 2m
- Assembly References 5m
- Introducing Portable Library 4m
- Type Forwarders in ILDASM 4m
- Summary 1m
- Compile-Time Constants and Array Initializers 4m
- Inspecting Array Initializers in ILDASM 3m
- The Essentials of Switch Statements 3m
- Optimizations of Switch Statements 5m
- Analyzing Switch Statements in ILDASM 3m
- Switch Statements with Strings 3m
- Behind the Scenes of Switch Statements for Strings in ILDASM 4m
- Final Remarks about Switch Statements 1m
- The Essentials of Events 3m
- Compiler-Generated Add and Remove Accessors 4m
- Building a Custom Event Manager 4m
- Windows Runtime Event Support in C# 5.0 2m
- Summary 1m
- Anonymous Methods under the Hood 3m
- Intermezzo on Compiler-Generated Names 2m
- Lambda Expressions and Homoiconicity 2m
- Inspecting Anonymous Methods in ILDASM 3m
- Introduction to Closures 6m
- Display Classes Behind the Scenes 5m
- Closures and Space Leaks 3m
- Debugging a Space Leak using WinDbg and SOS 6m
- Scoping of Foreach Loop Variables in Closures 4m
- Analyzing Foreach Loop Variable Scoping in ILDASM 5m
- Summary 2m
- Syntactic Sugar in C# 2m
- Foreach Statement and the Enumeration Pattern 3m
- Typing in Foreach Statements 4m
- Operator Overloading in a Nutshell 3m
- Domain Specific Languages (DSLs) using Operator Overloading 3m
- Building a Small Internal DSL 4m
- Lifted Nullable Operators 2m
- Query Expressions and the Query Pattern 3m
- LINQ to Anything Implementation Techniques 2m
- Building a Simple Query Provider 3m
- How Traditional Query Providers Work 4m
- Transparent Identifiers 3m
- Spotting Transparent Identifiers in ILDASM 2m
- Summary 1m
- Overview of C# Dynamic and the DLR 4m
- The Dynamic Type in C# 2m
- Analyzing Dynamic Typing using ILSpy 6m
- Under the Hood of Dynamic using SOS 5m
- Extending Dynamic with DynamicObject 3m
- Implementing a Simple Expando Object 5m
- Awaitable Types and the Awaiter Pattern 3m
- Compilation of Async Methods 5m
- Implementing a Button Awaiter 5m
- Summary 1m
- Introduction to Generic Typing 3m
- Why Generics Matter 2m
- Performance Benefits of Generics 5m
- Generics Under the Hood 3m
- Studying Generic Types using WinDbg and SOS 5m
- Constrained Virtual Calls 2m
- Overview of Generic Constraints 3m
- Co- and Contravariance in Pictures 4m
- Broken Array Covariance 5m
- Generic Variance Modifiers 3m
- Behind the Scenes of Generic Variance 4m
- Summary 2m
About the author
Bart J.F. De Smet is a software engineer working at Microsoft's mothership in Redmond, Washington. Hired fresh out of college in 2007, Bart started his Microsoft career on the Windows Presentation Foundation team, focusing on the application model, browser hosting, and native code interop. Later, he moved to the Cloud Programmability Team to work on data processing capabilities built using Language Integrated Query paradigms, which led to his involvement in the development of Reactive Extensi... more