Adding export visitPreprocessedAst & Fixing preprocess defined without paren bug

[06wj]

No description provided.

[AndrewRayCode]

Thanks for this! I'm surprised missing the defined MACRO condition without parens went unnoticed for so long.

I'm going to refactor this slightly, the GLSL grammar has a terminal production used for this very case of ensuring a word boundary between a token and the next text.

What is your use case for visiting the preprocess-parsed AST? That function is a little annoying because I didn't figure out type it properly, hence the @ts-ignore over the line. I don't see harm in exposing it, but it's not battle tested with the type override.

[AndrewRayCode]

Published in 3.2.0

[06wj]

I used it for preprocess my shader code.
My shader controls the shader logic on different platforms through defines.

#ifdef IN_WEB
web logic...
#else
native logic...
#endif

I want preprocess it so that it contain only the logic for a specific platform.

https://github.com/06wj/glsl-parser/blob/81524e31859bdc19e434c97c9109451db0e3ab70/src/preprocessor/preprocessor.test.ts#L517

[06wj]

BabylonJS/Spector.js#295
I added preprocessing functionality to SpectorJS using this library.