The CLR Architecture

The CLR Architecture




 Common Language Infrastructure.

   
•CLI allows for cross-language development.
•Four components:
–Common Type System (CTS)
–Meta-data in a language agnostic fashion.
–Common Language Specification – behaviors that all languages need to follow.
–A Virtual Execution System (VES).
 
Common Type System (CTS)

•A specification for how types are defined and how they behave.
–no syntax specified
•A type can contain zero or more members:
–Field
–Method
–Property
–Event
•We will go over these more throughout the quarter.
•CTS also specifies the rules for visibility and access to members of a type:
–Private
–Family
–Family and Assembly
–Assembly
–Family or Assembly
–Public
•We will go over these more throughout the quarter.
  
•Other rules
–Object life-time
–Inheritance
–Equality (through System.Object)
 
•Languages often define aliases
•For example
–CTS defines System.Int32 – 4 byte integer
–C# defines int as an alias of System.Int32
–C# aliases System.String as string.
 
 
 

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