48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
// Inline `xx` cast as the first argument to a struct static method must
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// flow the leading param's type into the cast — otherwise an `xx ptr`
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// targeting a protocol param falls back to s64 and the call frame is
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// corrupted, SIGTRAPping when the body dispatches through the field.
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//
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// Three call shapes that must all succeed:
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// 1. Named-variable receiver: `a : Allocator = xx p; T.init(a, ...)`
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// 2. Free function with inline xx: `make_t(xx p, ...)`
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// 3. Static method with inline xx: `T.init(xx p, ...)` ← used to crash
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#import "modules/std.sx";
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#import "modules/std/mem.sx";
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Box :: struct {
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parent: Allocator;
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first_ptr: *void;
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init :: (parent_alloc: Allocator, size: s64) -> *Box {
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self : *Box = xx libc_malloc(size_of(Box));
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self.parent = parent_alloc;
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self.first_ptr = self.parent.alloc_bytes(size);
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self
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}
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}
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make_box :: (parent_alloc: Allocator, size: s64) -> *Box {
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self : *Box = xx libc_malloc(size_of(Box));
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self.parent = parent_alloc;
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self.first_ptr = self.parent.alloc_bytes(size);
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self
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}
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main :: () -> s32 {
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g_gpa : GPA = .{ alloc_count = 0 };
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a : Allocator = xx @g_gpa;
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b1 := Box.init(a, 64);
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print("Box.init (named-var): ok\n");
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b2 := make_box(xx @g_gpa, 64);
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print("make_box (inline-xx): ok\n");
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b3 := Box.init(xx @g_gpa, 64);
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print("Box.init (inline-xx): ok\n");
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0
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}
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