Methods are functions whose first parameter is the receiver's address; a method
that changes self can't be called on a temporary or a read-only value, and
calling one on a variable keeps a parameter from being borrowed. An argument
that lives inside the receiver is copied (c.merge(c)). str(x) and print of
arrays and structs go through one formatter, as in the C++ compiler.
boot.sh: 12 passed, 0 failed, 10 skipped.
The self-hosted compiler now has the numeric types the C++ one has: int and
float stay the i64 and f64 defaults, the others lower to their LLVM sizes;
literals adapt to the other operand if they fit, smaller types widen into
bigger ones, signed and unsigned mixing is refused, division and shifts and
comparisons pick their signedness, and u8(x), f32(x), bool(x) convert.
boot.sh: 11 passed, 0 failed, 10 skipped (was 9 / 12).
- examples/opengl.fch: OpenGL 3.3 core, shaders, VAO/VBO, a spinning triangle (checked offscreen)
- examples/vulkan.fch: instance, GPUs with properties/memory/queues, logical device and queue
- ptr(n) and int(p) conversions for C APIs that pass offsets as pointers
- .ptr works on string literals; a comma after the last call argument is allowed
- a missing header included by an imported header is now named in the error
- the old .fn extension hint is gone (Finch is new, there are no old files)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
.fn is already used by other tools (e.g. Fennel). Modules are now looked up as name.fch;
a leftover name.fn gets a clear message telling you to rename it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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>
