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| author | bors <bors@rust-lang.org> | 2014-11-20 19:26:40 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2014-11-20 19:26:40 +0000 |
| commit | d13aff12246ab3c72b0c5f186400a21f825c0a6c (patch) | |
| tree | 6c7396e4b752f97768c4404a583b9cb903e3ebc5 /src/rustllvm/RustWrapper.cpp | |
| parent | 96c8f2b0c1846756e617f1f1fc1372c506e24248 (diff) | |
| parent | 7a372e23cbab0be6abd3fbd321d0548640568920 (diff) | |
| download | rust-d13aff12246ab3c72b0c5f186400a21f825c0a6c.tar.gz rust-d13aff12246ab3c72b0c5f186400a21f825c0a6c.zip | |
auto merge of #18750 : nikomatsakis/rust/issue-18333-skolemize-open-existential, r=nrc
In the general case, at least, it is not possible to make an object out of an unsized type. This is because the object type would have to store the fat pointer information for the `self` value *and* the vtable -- meaning it'd have to be a fat pointer with three words -- but for the compiler to know that the object requires three words, it would have to know the self-type of the object (is `self` a thin or fat pointer?), which of course it doesn't. Fixes #18333. r? @nick29581
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