Allow calling `const unsafe fn` in `const fn` behind a feature gate#55635

Merged

bors merged 23 commits intorust-lang:masterfrom

oli-obk:min_const_unsafe_fn

Dec 6, 2018

Commits on Dec 4, 2018

Allow calling `const unsafe fn` in `const fn` behind a feature gate
oli-obk
committed
Document unsafe rules with comments and `bug!` calls
oli-obk
committed
Add test for dereferencing raw pointers and immediately referencing again
oli-obk
committed
Make sure the initialization of constrained int range newtypes is unsafe
oli-obk
committed
Make `newtype_index` safe
oli-obk
committed
Move ref to packed struct field check into projection arm
oli-obk
committed
Forbid the creation of mutable borrows to fields of layout constrained types
oli-obk
committed
Trailing newlines again
oli-obk
committed
Adjust a rustc test to the safety changes
oli-obk
committed
generalize the message about the creation of layout restricted types
oli-obk
committed
Also make immutable references to non-freeze restricted value range types unsafe
oli-obk
committed
Also prevent mutation fields directly
oli-obk
committed
Comment on the unsafety code for layout constrained fields
oli-obk
committed
Emit feature gate suggestion
oli-obk
committed
Add tests for stable unsafe features in const fn
oli-obk
committed
Increase code-reuse and -readability
oli-obk
committed
Automatically generate imports for newtype_index `Deserialize` impls
oli-obk
committed
Add and update tests
oli-obk
committed
Clean up the logic in `is_min_const_fn`
oli-obk
committed
Explain unsafety trickery of const functions
oli-obk
committed
Clear up some code
oli-obk
committed
Intrinsic checks are just needed for `qualify_min_const_fn`
oli-obk
committed
Tidy fixup
oli-obk
committed

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Allow calling `const unsafe fn` in `const fn` behind a feature gate#55635

Commits on Dec 4, 2018

Allow calling `const unsafe fn` in `const fn` behind a feature gate

Document unsafe rules with comments and `bug!` calls

Add test for dereferencing raw pointers and immediately referencing again

Make sure the initialization of constrained int range newtypes is unsafe

Make `newtype_index` safe

Move ref to packed struct field check into projection arm

Forbid the creation of mutable borrows to fields of layout constrained types

Trailing newlines again

Adjust a rustc test to the safety changes

generalize the message about the creation of layout restricted types

Also make immutable references to non-freeze restricted value range types unsafe

Also prevent mutation fields directly

Comment on the unsafety code for layout constrained fields

Emit feature gate suggestion

Add tests for stable unsafe features in const fn

Increase code-reuse and -readability

Automatically generate imports for newtype_index `Deserialize` impls

Add and update tests

Clean up the logic in `is_min_const_fn`

Explain unsafety trickery of const functions

Clear up some code

Intrinsic checks are just needed for `qualify_min_const_fn`

Tidy fixup