7 Commits

Author	SHA1	Message	Date
Alejandro Alonso	424802fb34	Revert SE-0283 (#34492) ... Reverted despite build failures.	2020-10-29 17:32:06 -07:00
Azoy	fd950ebbf3	Implement Tuple Comparable Conformance ... Add protocol witnesses for all Comparable requirements	2020-10-22 18:27:07 -04:00
Slava Pestov	6d84c18ba4	Sema: Check 'where' clause requirements on type witnesses ... In the included test case, conformance checking of Wrapper : B would pick up typealias Foo as a witness for the associated type B.Foo. However, this typealias Foo is defined in a constrained extension where T : A, and the underlying type references the associated type A.Foo on T. The resulting substitution is invalid when the conformance Wrapper : B is used in a context where T does not conform to A. Instead, we should ignore this typealias entirely, since it appears in an unusable constrained extension. Fixes <rdar://problem/60219705>, <https://bugs.swift.org/browse/SR-12327>, <https://bugs.swift.org/browse/SR-12663>.	2020-08-15 01:43:13 -04:00
Anthony Latsis	d688710fb3	[Diag] Move invalid where clause on top-level decl diagnostic to Sema	2020-03-15 13:38:49 +03:00
Anthony Latsis	f762644175	Diagnose nested type references with unsatisfied requirements	2020-03-05 20:23:49 +03:00
Anthony Latsis	329e2c5a11	Make sure Self constraints in classes remain illegal	2020-03-05 20:21:27 +03:00
fischertony	6f08216936	Sema: Support where clauses on contextually generic decls	2020-03-05 04:37:12 +03:00