HexoLua 源码清除计划 -- 开篇 2015-07-11

引用自http://www.reddit.com/comments/63hth/ask_reddit_which_oss_codebases_out_there_are_so/c02pxbp

推荐阅读顺序

  • lmathlib.c, lstrlib.c

get familiar with the external C API. Don’t bother with the pattern matcher though. Just the easy functions.

  • lapi.c

Check how the API is implemented internally. Only skim this to get a feeling for the code. Cross-reference to lua.h and luaconf.h as needed.

  • lobject.h

tagged values and object representation. skim through this first. you’ll want to keep a window with this file open all the time.

  • lstate.h

state objects. ditto.

  • lopcodes.h

bytecode instruction format and opcode definitions. easy.

  • lvm.c

scroll down to luaV_execute, the main interpreter loop. see how all of the instructions are implemented. skip the details for now. reread later.

  • ldo.c

calls, stacks, exceptions, coroutines. tough read.

  • lstring.c

string interning. cute, huh?

  • ltable.c

hash tables and arrays. tricky code.

  • ltm.c

metamethod handling, reread all of lvm.c now.
You may want to reread lapi.c now.

  • ldebug.c

surprise waiting for you. abstract interpretation is used to find object names for tracebacks. does bytecode verification, too.

  • lparser.c, lcode.c

recursive descent parser, targetting a register-based VM. start from chunk() and work your way through. read the expression parser and the code generator parts last.

  • lgc.c

incremental garbage collector. take your time.

Read all the other files as you see references to them. Don’t let your stack get too deep though.
If you’re done before X-Mas and understood all of it, you’re good. The information density of the code is rather high.

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