A Deeper Inspection Into Compilation And Interpretation - Compiled

요약

Learning

• Trying to find the pieces that fit around a random puzzle piece without knowing how each of them fit the big picture.
• If you stick around long enough, you'll find some pieces start to come together.

Binary

• Machine language/machine code - the code that computers read.
• Given to the machine and run by CPU

Process of source code -> Machine code Translation

• The two translators called the compiler and interpreter makes code readable for the computer

Translator

• Translates source language into target language

The Compiler (translator)

• Takes source text and converts it into machine code
• Souce code is turned into a file (as machine code) before even running the source code. This can be used repeatedly. ex) .exe
• uses scanner lexer/tokenizer, and parser.
• Developed by Grace Hopper, 1952. Wanted to create a new prog. language that would allow making computer programs in English. COBOL Made.
• C, C++

The Interpreter (translator)

• Takes source text and converts it into machine code, the runs/executes the code imediately. (Big difference from compiler)
• Translates sections of the code and runs it right after interpretation.
• Unlike compiler, when it wants to run the program again, it interprets this every time.
• Python, Perl

Compiler vs Interpreter

• Compiled code generally runs faster but interpreted code is more flexible (easier to test changes).

• Compiles code is distributed while protecting source code privacy but it it platform dependent.

• JAVA uses both compiler and interpreter due to the usage of VM(virtual machine)

출처

https://medium.com/basecs/a-deeper-inspection-into-compilation-and-interpretation-d98952ebc842

http://www2.hawaii.edu/~takebaya/ics111/process_of_programming/process_of_programming.html