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Auto merge of #56160 - oli-obk:const_fn_let, r=nikomatsakis

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Fix various aspects around `let` bindings inside const functions

* forbid `let` bindings in const contexts that use short circuiting operators
* harden analysis code against derefs of mutable references

Initially this PR was about stabilizing `let` bindings, but too many flaws were exposed that need some more testing on nightly
This commit is contained in:
bors
2018-12-18 14:21:07 +00:00
parent 041254b814 d815e2b870
commit cb84844e83
37 changed files with 1086 additions and 133 deletions
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src/libcore/lib.rs
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@@ -121,7 +121,6 @@
#![feature(const_slice_len)]
#![feature(const_str_as_bytes)]
#![feature(const_str_len)]
#![feature(const_let)]
#![feature(const_int_rotate)]
#![feature(const_int_wrapping)]
#![feature(const_int_sign)]