29784c22a8
The session-long set of changes that lay the groundwork for the
Jai-literal implicit-Context-parameter refactor. Lots of accumulated
work; the new arrival is the implicit-ctx foundation (steps 1+2 of
the plan in current/CHECKPOINT-MEM.md):
Step 1 — `CAllocator :: struct {}` stateless allocator in
library/modules/allocators.sx, delegating directly to
libc_malloc/libc_free. `ConstantValue` in src/ir/inst.zig gains a
`func_ref: FuncId` leaf so nested aggregates can carry function
pointers (the inline Allocator value's fn-ptr fields). Switch
sites updated in emit_llvm.zig, print.zig, interp.zig.
Step 2 — `emitDefaultContextGlobal` in src/ir/lower.zig synthesises
a static `__sx_default_context` global with a nested-aggregate
init_val pointing at the CAllocator → Allocator thunks. The
second-pass `initVtableGlobals` in emit_llvm.zig is generalised
to handle `.aggregate` init_vals (re-emits after func_map is
populated so func_ref leaves resolve to real symbols).
Also folded in from earlier work this session:
- Phase 1.1: `xx value` heap-copy in `buildProtocolValue` routes
through `context.allocator` via the new `allocViaContext` helper.
- interp.zig: `marshalForeignArg` double-offset bug fixed —
`heapSlice` already adds `hp.offset` to the slice ptr, so the
extra `+ hp.offset` was scribbling memcpy/memset into adjacent
heap state, corrupting `heap.items[0]`. Symptom: `build_format`
at comptime produced zero bytes, all `print` calls failed.
- Lazy lowering: `lazyLowerFunction` now declares foreign-body
functions as extern stubs in the local (comptime) module so
cross-module foreign calls resolve.
- Allocator API: all stdlib allocators on one-line `init() -> *T`
(CAllocator/GPA: libc-backed; Arena/TrackingAllocator: parent-
backed; BufAlloc: embeds state at head of user buffer).
- issues 0038 (transitive #import), 0039 (chess + stdlib migration
fallout), 0040 (generic struct method dot-dispatch), 0041
(pointer types as type-arg), 0042 (alias name resolution) — all
fixed; regression tests in examples/.
- Diagnostic: `emitError` now embeds the lowering's
`current_source_file` and enclosing function in the literal
message; SX_TRACE_UNRESOLVED=1 dumps a Zig stack trace at the
emit site so misattributed spans can't hide where the failure
is.
- tools/verify-step.sh (all-platforms gate) and tools/scratch.sh
(interp/codegen parity tester) added.
Test suite: 152 example tests pass; chess builds + screenshots on
macOS / iOS sim / Android.
32 lines
1.0 KiB
Plaintext
32 lines
1.0 KiB
Plaintext
// issue-0041 — Pointer / optional / array / function / tuple types as
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// expression-position values (size_of / align_of arg, const-decl RHS).
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#import "modules/std.sx";
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// Unambiguous type-form const-decl aliases.
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Ptr :: *u8;
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Maybe :: ?u8;
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Arr :: [3]u8;
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Cb :: (s32) -> s32;
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main :: () -> s32 {
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// Direct: parser fix for *T, ?T + existing [N]T path.
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print("size_of(*u8) = {}\n", size_of(*u8));
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print("align_of(*u8) = {}\n", align_of(*u8));
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print("size_of(?u8) = {}\n", size_of(?u8));
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print("size_of([3]u8) = {}\n", size_of([3]u8));
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// Function-type literal in expression position.
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print("size_of((s32)->s32) = {}\n", size_of((s32) -> s32));
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// Tuple literal reinterpreted as tuple type at the type-demanding site.
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print("size_of((s32, s32)) = {}\n", size_of((s32, s32)));
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// Aliases.
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print("size_of(Ptr) = {}\n", size_of(Ptr));
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print("size_of(Maybe) = {}\n", size_of(Maybe));
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print("size_of(Arr) = {}\n", size_of(Arr));
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print("size_of(Cb) = {}\n", size_of(Cb));
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0;
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}
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