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* [cup] Self-hosting is now possible! Make some tweaks to match C outputMustafa Quraish2022-02-071-0/+28
| | | | | | | | | | | A bit of a chonky commit, but this ports over the remaining (well, almost) everything from the C implementation to the self-hosted compiler. The only things that really remain right now are (1) defer support and (2) support for constants in local scopes. There were used barely enough so for now their uses have been removed, but I'll implement them back later. Not sure how useful (2) is though.
* [cup] Port over all the type-checking/pointer arithmetic stuffMustafa Quraish2022-02-071-0/+126
| | | | | | | | | There's still some work to be done when checking function call args, etc, but the general mechanism of actually propagating the type back up the AST is now here from the C compiler. ... Not to say that was very good, but it's passable enough for now. More improvements to come in the future!
* [cup] Add support for builtin functions, add `print()`Mustafa Quraish2022-02-051-1/+10
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* [compiler.cup] Add codegen for relational + if/conditional supportMustafa Quraish2022-02-051-0/+13
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* Add implementation of self-hosted compiler so farMustafa Quraish2022-02-051-0/+317
There's also a `run.sh2` script which does the following: - Compiles the C compiler `build/cupcc` - Compiles the self-hosted compiler `build/cup.out` (with `cupcc`) - Compiles the specified file on CLI with `build/cup.out` - Runs this exectuable and shows the output