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).
11 lines
1.4 KiB
Plaintext
11 lines
1.4 KiB
Plaintext
--- void / 0 args ---
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__invoke :: (block_self: *Block) -> void abi(.c) { typed_fn : (*void) -> void = xx block_self.sx_fn; typed_fn(block_self.sx_env); } return .{ isa = @_NSConcreteStackBlock, flags = 0, reserved = 0, invoke = xx @__invoke, descriptor = xx @__sx_block_descriptor, sx_env = self.env, sx_fn = self.fn_ptr, };
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--- void / bool ---
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__invoke :: (block_self: *Block, arg0: bool) -> void abi(.c) { typed_fn : (*void, bool) -> void = xx block_self.sx_fn; typed_fn(block_self.sx_env, arg0); } return .{ isa = @_NSConcreteStackBlock, flags = 0, reserved = 0, invoke = xx @__invoke, descriptor = xx @__sx_block_descriptor, sx_env = self.env, sx_fn = self.fn_ptr, };
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--- void / i64, string ---
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__invoke :: (block_self: *Block, arg0: i64, arg1: string) -> void abi(.c) { typed_fn : (*void, i64, string) -> void = xx block_self.sx_fn; typed_fn(block_self.sx_env, arg0, arg1); } return .{ isa = @_NSConcreteStackBlock, flags = 0, reserved = 0, invoke = xx @__invoke, descriptor = xx @__sx_block_descriptor, sx_env = self.env, sx_fn = self.fn_ptr, };
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--- i32 / f64 ---
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__invoke :: (block_self: *Block, arg0: f64) -> i32 abi(.c) { typed_fn : (*void, f64) -> i32 = xx block_self.sx_fn; return typed_fn(block_self.sx_env, arg0); } return .{ isa = @_NSConcreteStackBlock, flags = 0, reserved = 0, invoke = xx @__invoke, descriptor = xx @__sx_block_descriptor, sx_env = self.env, sx_fn = self.fn_ptr, };
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--- build done ---
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rt
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