cd5b958d19
Introduce the welded comptime `compiler` library (`#library "compiler"` +
`abi(.zig) extern compiler`), per design/comptime-compiler-api.md, and unify
`callconv(...)` into the new `abi(...)` annotation.
abi(...) replaces callconv(...):
- New ABI enum { default, c, zig, pure }; `abi(.c|.zig|.pure)` parses in the
postfix slot before extern/export (and standalone). `kw_callconv` -> `kw_abi`.
- Migrated 52 sx files, the call-convention-mismatch diagnostic, and docs
(readme/specs) from `callconv(.c)` to `abi(.c)`.
Phase 1 — welded compiler library (parse -> registry -> validation -> bridge):
- `abi(.zig) extern compiler` parses on fn decls (carries abi/extern_lib) and
struct decls (StructDecl.abi/extern_lib).
- `#library "compiler"` is the comptime-only internal surface — never dlopen'd.
- src/ir/compiler_lib.zig: the binding registry (the safety boundary). `Field`
welded to StructInfo.Field with layout baked from the real Zig type
(@offsetOf/@sizeOf); `findType`/`findFn`. Welded structs are layout-validated
at registration (field set + total size) as a header checked against the impl.
- Host-call bridge: a `fn abi(.zig) extern compiler` dispatches under the
comptime interp to its registered Zig handler (intern/text_of round-trip),
never dlsym. IR Function.compiler_welded; validated in declareFunction.
- Comptime-only enforcement: a runtime call to a welded fn is a clean
build-gating error (emitCall), not an undefined-symbol link failure.
Phase 2.1 — byte-layout weld foundation:
- Decision: full byte-layout weld (sx struct laid out byte-identically to the
bound Zig type). Registered StructInfo (first non-natural / Zig-reordered
layout). `computeWeldPlan` — pure offset-ordered element plan + padding +
sx-field->LLVM-element remap; unit-tested. Emit/interp wiring is the next
sub-step (2.2+, see current/CHECKPOINT-COMPILER-API.md).
Examples: 0625/0626 (welded struct + fn round-trip), 1183/1184/1185
(layout-mismatch, unexported-fn, runtime-call diagnostics).
36 lines
1.1 KiB
Plaintext
36 lines
1.1 KiB
Plaintext
// Phase 3 step 3.0: one-arg selector mangling. `addObject(o)` derives
|
|
// `addObject:` — the sx method name becomes the keyword, a single
|
|
// trailing `:` for the single arg. Selector arity (count of `:`) must
|
|
// equal sx-side arity excluding self.
|
|
//
|
|
// Pre-3.0: bails at lower.zig with the Phase 3/4 diagnostic.
|
|
#import "modules/std.sx";
|
|
#import "modules/build.sx";
|
|
#import "modules/ffi/objc.sx";
|
|
|
|
SxProbeOneArg :: #objc_class("SxProbeOneArg") extern {
|
|
addObject :: (self: *Self, val: i32) -> i32;
|
|
}
|
|
|
|
addObject_imp :: (self: *void, _cmd: *void, val: i32) -> i32 abi(.c) {
|
|
val * 2
|
|
}
|
|
|
|
main :: () -> i32 {
|
|
inline if OS == .macos {
|
|
ns_object := objc_getClass("NSObject".ptr);
|
|
cls := objc_allocateClassPair(ns_object, "SxProbeOneArg".ptr, 0);
|
|
sel := sel_registerName("addObject:".ptr);
|
|
class_addMethod(cls, sel, xx addObject_imp, "i@:i".ptr);
|
|
objc_registerClassPair(cls);
|
|
|
|
inst : *SxProbeOneArg = xx class_createInstance(cls, 0);
|
|
n := inst.addObject(21);
|
|
print("addObject(21) = {}\n", n);
|
|
}
|
|
inline if OS != .macos {
|
|
print("skipped (not macos)\n");
|
|
}
|
|
0
|
|
}
|