Interpreters and Compilers: How Your Code Actually Becomes a Running Program
Every developer writes code that "just works" thousands of times without thinking about what happens between hitting save and seeing output on screen. This article pulls back that curtain. We're going to walk through, in real depth, how source code — plain text you typed — becomes a running program, covering lexing, parsing, abstract syntax trees, semantic analysis, and the actual difference…
The path from human-readable source code to a running program is a complex process involving several stages. This article breaks down that process step by step, explaining key concepts like lexical analysis, parsing, abstract syntax trees, semantic analysis, and the distinction between interpretation and compilation. By grasping these fundamentals, developers can better understand error messages, optimize performance, and evaluate new programming languages and tools.
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