6dab8a157f
108/108 regression tests pass (+ffi-objc-call-09-in-construct, +issue-0038 from the prior commit). One trivial Obj-C call (`[obj hash]` returning NSUInteger) routed through four sx surface constructs: 1. struct method body Probe.fetch 2. protocol impl method body impl Hashable for Probe 3. closure value body make_hasher 4. generic function body hash_through(recv: $T) No new ABI shapes touched — pins that the `objc_msg_send` lowering emits identical call shapes regardless of enclosing scope. Each case validates the result `h_N == h_1` after threading `recv` appropriately for each context. The closure path reaches `recv` via a module-level global rather than capturing the surrounding parameter — issue-0038 (prior commit) documents the closure free-variable analyzer missing the `FfiIntrinsicCall` node, with a clean workaround pinned.
86 lines
3.1 KiB
Plaintext
86 lines
3.1 KiB
Plaintext
// Phase 1 steps 1.11–1.13 (PLAN-FFI.md): `#objc_call` call sites
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// embedded inside the sx surface constructs. None touch a new ABI
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// path — the lowering routes the call identically regardless of
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// the enclosing scope, and this test pins that lemma.
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//
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// 1. Struct method body Probe.fetch
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// 2. Protocol impl method body impl Hashable for Probe
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// 3. Closure value body closure that calls hash
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//
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// 1.14 (separate test): `inline if OS == { case }` gating across
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// targets — verified by `tests/cross_compile.sh`.
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#import "modules/std.sx";
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#import "modules/compiler.sx";
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#import "modules/std/objc.sx";
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// ── 1. Struct method calling #objc_call ─────────────────────────────
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Probe :: struct {
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receiver: *void = null;
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fetch :: (self: *Probe) -> s64 {
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#objc_call(s64)(self.receiver, "hash");
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}
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}
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// ── 2. Protocol impl method ────────────────────────────────────────
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Hashable :: protocol {
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sx_hash :: (self: *Self) -> s64;
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}
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impl Hashable for Probe {
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sx_hash :: (self: *Probe) -> s64 {
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#objc_call(s64)(self.receiver, "hash") * 2;
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}
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}
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// ── 3. Closure body invoking #objc_call ─────────────────────────────
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// Closure-captured `recv` isn't traced through the `#objc_call` AST
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// node by sema today, so we reach the receiver via a module-level
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// global. The lemma we lock here is that lowering routes the call
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// the same way inside a closure body as it does at top level.
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g_hasher_recv : *void = null;
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make_hasher :: () -> Closure(s32) -> s64 {
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closure((dummy: s32) -> s64 => #objc_call(s64)(g_hasher_recv, "hash"));
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}
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// ── 4. Generic function body — instantiated per call site ───────────
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hash_through :: (recv: $T) -> s64 {
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p : *void = xx recv;
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#objc_call(s64)(p, "hash");
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}
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main :: () -> s32 {
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inline if OS == .macos {
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ns_object := objc_getClass("NSObject".ptr);
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p : Probe = .{ receiver = ns_object };
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// 1. struct method
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h1 := p.fetch();
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print("fetch != 0 = {}\n", h1 != 0);
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// 2. protocol method (doubles the raw hash; mostly checking
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// dispatch / arg threading, not the math)
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h2 := p.sx_hash();
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print("protocol h2 = {}\n", h2 == h1 * 2);
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// 3. closure (receives a dummy arg to keep the `Closure(T) -> R`
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// arity matching 35-closures.sx; recv comes via a global —
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// closure capture through `#objc_call` AST nodes isn't
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// traced by sema today and would error "unresolved").
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g_hasher_recv = ns_object;
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hasher := make_hasher();
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h3 := hasher(0);
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print("closure h3 = {}\n", h3 == h1);
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// 4. generic function — instantiates with T = *void here
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h4 := hash_through(ns_object);
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print("generic h4 = {}\n", h4 == h1);
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}
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inline if OS != .macos {
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print("skipped (not macos)\n");
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}
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0;
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}
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