codegen: emit C instead of bytecode — El is now natively compiled

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Rewrites codegen.el to produce C source instead of JSON bytecode,
eliminating the ELVM interpreter as a runtime dependency.

- All El values use el_val_t (int64_t) as the universal type; integers
  are stored directly, strings/pointers via uintptr_t cast
- String literals wrapped with EL_STR(), arithmetic works natively
- fn declarations become C functions returning el_val_t
- let bindings become el_val_t local variables
- if/else, while, for all map to native C control flow
- String + String uses el_str_concat(); numeric + uses C +
- strip_outer_parens() prevents double-paren warnings in if/while
- compiler.el updated to describe C output and correct CLI usage

Adds el-compiler/runtime/ with:
- el_runtime.h: declares all builtins using el_val_t
- el_runtime.c: implements I/O, strings, math, list, map, fs, JSON;
  HTTP builtins are stubs (return empty string) pending libcurl

Compile El programs with:
  cc -I<runtime-dir> -o hello hello.c el_runtime.c

...

This commit is contained in:

Will Anderson

2026-04-29 22:33:27 -05:00

parent 4f3543b068

commit ede087eb04

4 changed files with 948 additions and 518 deletions

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el-compiler/src/codegen.el

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