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* c: SYM expr should store decl ref as an index, not pointerlemon2025-12-301-2/+4
| | | | | | | | Because envdecls (now declsbuf) can be resized and invalidate those pointers. I missed this because the default initialization size of that buffer (and the fact that it would mostly only manifest with function-local expressions) made it not really come up in practice. Silly
* c: Fix some dumb uses of initialized stufflemon2025-12-221-7/+5
| | | | | | Can't figure out what's wrong with the change to struct expr from 9721d6ba40 but it makes valgrind complain and causes miscompilation of the compiler itself..
* some static assertions for packed type sizeslemon2025-12-201-6/+8
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* c.h init zero bitset portabilitylemon2025-12-191-1/+1
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* create distinct interned string typelemon2025-12-151-2/+2
| | | | | | | | | | | | | | Interned strings are used pervasively, so it's a good idea to add a layer of type safety to differentiate them from general cstrs and avoid potential bugs from comparing non-interned and interned strings. Not that that's happened so far that I can remember, but it could. I'm 90% sure it's legal to alias `struct {char c;}` pointers with `char` pointers. This specific typedef gives type safety but with a simple one-way `internstr -> const char *` typecast (with `&istr->c`). Converting the other way around is more intentional: a straight up cast `(internstr)cstr` which sticks out as unchecked and probably wrong, or calling the intern(cstr) function, which is the right way.
* c: support for noreturn, and decl parsing cleanuplemon2025-12-111-0/+2
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* c: add decl.sym; avoid calling mkhiddensym repeatedlylemon2025-11-221-0/+1
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* factor type stuff into type.hlemon2025-11-161-0/+1
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* preeliminary va_list supportlemon2025-11-141-4/+34
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* c irgen fixeslemon2025-10-191-1/+8
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* Organize source files into directorieslemon2025-10-191-0/+89