31 lines
644 B
Plaintext
31 lines
644 B
Plaintext
// A protocol method declared with a real pointer return (`-> *u8`,
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// NOT `-> Self`) returns the raw pointer to the caller without the
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// dispatch path auto-dereferencing it. Without this, a method whose
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// pointee is a single byte gets `sizeof(target)` bytes loaded past
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// it and segfaults.
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#import "modules/std.sx";
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Proto :: protocol {
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get :: () -> *u8;
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}
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Impl :: struct {
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val: u8 = 42;
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}
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impl Proto for Impl {
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get :: (self: *Impl) -> *u8 {
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@self.val;
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}
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}
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main :: () -> s32 {
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imp : Impl = .{};
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p : Proto = xx @imp;
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raw : *u8 = p.get();
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addr_word : u64 = xx raw;
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print("got pointer: {}\n", addr_word != 0);
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0;
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}
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