Environment Model Example Ocaml Programming Chapter 9 Video 24

An

How to evaluate a core fragment of

Implementing an

The "

The

A comparison of big-step vs. small-step semantics, and substitution

A "closure" is a data structure containing the code for a function, as well as the

The semantics of `let` uses a notion of substitution, but, how should that be defined? These

Compilers translate code from one language to another. Interpreters execute code. Virtual machines and just-in-time compilation ...

Defining and implementing the big-step substitution-

The

OCaml

Defining the small-step semantics of `let` expressions, based on substitution Textbook: https://cs3110.github.io/textbook.

How to define the substitution operation for simple expressions, including `if` and `let` Textbook: https://cs3110.github.io/textbook.

Implementing the evaluation of integer constants in the calculator interpreter Textbook: https://cs3110.github.io/textbook.

The "type checking" phase of compilation performs a static analysis to prevent run-time errors during evaluation. Mathematically ...

Modifying the parser and AST to incorporate type annotations on `let` bound variables Textbook: https://cs3110.github.io/textbook.

In a small-step semantics, an expression repeatedly takes a single step of evaluation until it reaches a value Textbook: ...

Small- and big-step evaluation relations are themselves related: the big-step is an abstraction of the small-step Textbook: ...