[video output=day206 member=cmuratori stream_platform=twitch stream_username=handmade_hero project=code title="Implementing Introspection" vod_platform=youtube id=1IwYEJsvdcs annotator=Miblo annotator=Kelimion]
[0:32][Recap and set the stage for the day]
[3:45][simple_preprocessor.cpp: Introspection]
[6:25][simple_preprocessor.cpp: Name this function ReadEntireFileIntoMemoryAndNullTerminate]
[7:16][simple_preprocessor.cpp: Call this function to run on handmade_sim_region.h and build it up]
[9:00][build.bat: Add simple_preprocessor.cpp]
[9:45][Debugger: Step into simple_preprocessor.cpp and ensure that it works as expected]
[10:51][simple_preprocessor.cpp: Null terminate the file]
[11:19][handmade.h: #define introspect]
[12:31][handmade_sim_region.h: Use this introspect macro]
[12:42][Brown butter][quote 274]
[13:16][Describe tokens]
[14:58][simple_preprocessor.cpp: Introduce token structures]
[16:41][simple_preprocessor.cpp: Loop over the Tokens and print them out]
[20:18][simple_preprocessor.cpp: Introduce struct tokenizer]
[21:20][simple_preprocessor.cpp: Introduce EatAllWhitespace]
[23:09][Get a little brained][quote 275]
[28:06][simple_preprocessor.cpp: Provide a way to parse identifiers]
[29:20][simple_preprocessor.cpp: Move GetToken's functionality to the correct place and write EatAllWhitespace]
[31:13][simple_preprocessor.cpp: Provide the ability to parse C-style comments and introduce IsEndOfLine]
[34:36][simple_preprocessor.cpp: Introduce IsAlpha and IsNumeric]
[35:57][simple_preprocessor.cpp: Handle unknown tokens]
[37:00][simple_preprocessor.cpp: Skip the closing quote]
[38:47][simple_preprocessor.cpp: Implement ParseIdentifier]
[40:09][Debugger: Step into simple_preprocessor.cpp and inspect the Tokenizer]
[41:07][simple_preprocessor.cpp: Handle skipping over the first character]
[42:33][Debugger: Step back in and inspect the Token]
[43:30][Run the preprocessor and look at its output]
[44:09][simple_preprocessor.cpp: Introduce ParseIntrospectable]
[45:29][simple_preprocessor.cpp: Introduce TokenEquals]
[48:08][Debugger: Step in to TokenEquals]
[48:51][simple_preprocessor.cpp: Check for the string "intr"]
[49:37][Debugger: Step through the loop inspecting At and Index]
[50:51][simple_preprocessor.cpp: Implement ParseIntrospectable]
[53:11][simple_preprocessor.cpp: Introduce ParseIntrospectionParams]
[53:54][simple_preprocessor.cpp: Introduce ParseStruct]
[55:17][simple_preprocessor.cpp: Introduce ParseMember]
[56:04][simple_preprocessor.cpp: Introduce RequireToken]
[56:59][simple_preprocessor.cpp: Provide the ability to print out the DEBUG_VALUE]
[1:00:43][Run the preprocessor and see what happens]
[1:01:55][Q&A][:speech]
[1:02:52][@paulsm1th][It seems like you are doing recursive descent parsing. Is that how you would describe it?]
[1:03:35][Blackboard: Recursive Descent Parser]
[1:05:04][simple_preprocessor.cpp: Introduce a more recursive example of ParseMember]
[1:09:17][@Pseudonym73][Can you please satisfy my C standard anal retention by accepting 'v' and 'f' as whitespace?]
[1:10:10][@garryjohanson][Have you an opinion on OpenCLC? Would that be out of bounds for Handmade Hero?]
[1:10:31][@insofaras][How would you handle errors if you were deep in the recursion? Is checking return values everywhere the best way?]
[1:11:18][@radlabgaming][I showed up late. Can you explain what introspection is?]
[1:16:22][@Popcorn0x90][Do you if Jon does "metaprogramming" for his language?]
[1:17:12][@insofaras][Regarding errors again, would this be a place where exceptions would actually be useful?]
[1:18:00][@evraire][Now that we have the preprocessor, do you plan to make more use of it going forward in Handmade Hero?]
[1:18:18][@hoganlong][Who is Jon and what language are you talking about?]
[1:18:39][@cvaucher][I'm writing a parser that looks pretty similar to this, but it runs on multi-GB files which takes a while. Any common approaches to use SIMD/multithreading to speed up text parsing? Seems more difficult since the characters aren't "independent" in the way pixels are]
[1:20:18][@desophos][This stream makes me feel like an extremely inferior and incompetent programmer. Do you approve of this?]
[1:22:58][@paulsm1th][How does metaprogramming change your workflow? Can you talk about incorporating generated code with the "regular" C files?]
[1:25:52][Wrap up][:speech]
[/video]