nexoniarz/Finch
Watch
1
0
Fork
You've already forked Finch
 0
mirror of https://github.com/Nexoniarz/Finch.git synced 2026-11-03 08:54:25 +00:00
Code Issues Projects Releases Packages Wiki Activity

Bootstrap: the Finch compiler written in Finch

Browse source 
boot/ is a second Finch compiler written in Finch (lexer, parser, type checker and
an LLVM IR text generator, ~3k lines). Built by the C++ compiler it compiles itself;
stage 2 and stage 3 produce byte-identical IR. It covers the core language: functions,
structs, arrays, str, pointers, loops and modules (no C imports, sized numbers or defer),
copies values like the main compiler and leaves freeing memory to the operating system.

tests/boot.sh checks the fixpoint and runs the test programs it supports.
Also: shell(cmd) built-in.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Nexoniarz 2026-10-08 19:07:49 +02:00
commit c7ddd4d8b6
8 changed files with 3153 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

10
runtime/finch_rt.c
View file

@ -15,6 +15,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
typedef struct {
char *ptr;
@ -418,6 +419,15 @@ void finch_read_file(FStr *out, const FStr *path, const char *file, int64_t line
out->cap = size + 1;
}
// shell("ls -l"): run a command, give back its exit code
int64_t finch_shell(const FStr *cmd) {
fflush(stdout);
int status = system(cmd->ptr ? cmd->ptr : "");
if (status == -1) return -1;
if (WIFEXITED(status)) return WEXITSTATUS(status);
return 128 + (WIFSIGNALED(status) ? WTERMSIG(status) : 0);
}
int finch_write_file(const FStr *path, const FStr *text) {
FILE *f = fopen(path->ptr, "wb");
if (!f) return 0;