Commit graph Finch/src/lexer.fch
Author SHA1 Message Date
Nexoniarz
c830c780fe "\(x)" in text, test blocks with assert and finch test, a build cache, the chain of calls on runtime errors
- "x is \(x)", "\(speed, 2)" (two digits after the point), also in """ text
- test "name" { ... } blocks; assert(cond) and assert(cond, why); finch test runs each on its own
- the program's object and its C files (link "x.c") are kept in the cache until they or their headers change
- runtime errors show the calls that led there (finch run, finch test, -g, -O0, --trace)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016GzNP6r8dg6WDxUVZy8wjL
2026-10-29 10:59:30 +01:00
Nexoniarz
f2d6480749 const, if as a value, """ text over several lines, min/max/abs/clamp, import a/b and import x as y, the fs module
- const NAME = value (numbers, text, other constants; typed: const f32 G = 9.8), also module.NAME
- x := if c { a } else { b }
- """ ... """: the closing quotes' indentation goes from every line
- min, max, abs, clamp for any numbers, unless your own function has the name
- import ui/button (a module in a folder), import path as p
- fs: read_bytes, write_bytes, exists, is_dir, mkdir (with parents), list, remove_dir, data_dir(app)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016GzNP6r8dg6WDxUVZy8wjL
2026-10-29 09:37:41 +01:00
Nexoniarz
6142e47e71 Struct defaults apply inside structs; exit() ends an or-block; 1e9 literals; x * 2.0 stays f32; floats print as the shortest exact text; str(x, digits)
Also frees main's args and the message of a failing main (valgrind was not clean on two tests).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-29 09:14:58 +01:00
Nexoniarz
b9378050ab The compiler is written in Finch, and nothing else: src/*.fch, built from a seed
boot/ is src/ now. The C++ compiler and CMake are gone from this branch (they are on before-bootstrap).
bootstrap/build.sh builds the compiler from bootstrap/<system>.ll -- the compiler's own LLVM IR -- then builds
it with itself and checks the two come out identical. bootstrap/build.sh seed writes the seed anew.

The driver is complete: the runtime is compiled once and kept in ~/.cache/finch; a program's own C files,
.o and .a files and frameworks link along; a linker failure is read and answered with  link "lib"  or the
library that is missing. The old tests/fail diagnostics are all in again (a missing import, a str compared with
null, 'write just the library's name', a map key that is a float, non-ASCII names, ...).

tests/run.sh is the one test runner: programs, refusals, -g builds and the shared library. 106 passed.
2026-10-25 21:42:17 +01:00
Renamed from boot/lexer.fch (Browse further)