`null` is now a real pointer literal and null-tests are comparisons, instead of `ptr_null()` and `ptr_is_null(x)`: ptr_null() -> null ptr_is_null(x) -> (x == null) not ptr_is_null(x) -> (x != null) Mechanics: a new E_NULL primary (`null`, like true/false) lowers to the `null` pointer; emit_bin's comparison path now picks `ptr` vs `i32` from operand type (via llty), so `==`/`!=` work on any pointer/record/slice. The two intrinsics are deleted. Two reseeds: (A) add the literal + ptr comparison keeping the intrinsics; (B) migrate all 182 call sites (compiler + runtime, via a balanced-paren script that skips string-literal args and rewrites `not ptr_is_null` to `!= null`) and delete the intrinsics. Node/Val/Buf/Tok field defaults now read `ptr = null`. Vocabulary drops the two from LUDIC_INTRINSICS; `null` joins true/false as a language constant (grammar + ludic_syntax.h). LANGUAGE.md notes the literal. Reseeded (21664 lines); C-free fixpoint holds; goldens identical; 17/17; vocab + doc-fences clean. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
22 lines
552 B
Text
22 lines
552 B
Text
# io.ludic — reading the input file and writing the output, plus tiny stdio.
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# The compiler reads one .ludic file whole and emits LLVM IR text to stdout.
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fn read_file(path: str) -> ptr {
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let f = file_open(path, "rb")
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if (f == null) { return null }
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file_seek(f, 0, 2)
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let n = file_tell(f)
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file_seek(f, 0, 0)
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let buf = mem_alloc(n + 1)
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file_read(f, buf, n)
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poke8(buf, n, 0)
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file_close(f)
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return buf
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}
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# length of a NUL-terminated buffer
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fn cstr_len(s: ptr) -> int {
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var n = 0
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while peek8(s, n) != 0 { n = n + 1 }
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return n
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}
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