averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

IRGen: EmptyBoxType's representation cannot be nil because of a conflict with extra inhabitant assumption in indirect enums (#10326)

Browse Source 
* IRGen: EmptyBoxType's representation cannot be nil because of a conflict with extra inhabitant assumption in indirect enums

We map nil to the .None case of Optional. Instead use a singleton object.

SR-5148
rdar://32618580
This commit is contained in:
Arnold Schwaighofer
2017-06-17 09:33:41 -07:00
committed by GitHub
parent 6f3b8ca60f
commit 48e889b51b
13 changed files with 113 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/IRGen/IRGenFunction.h
View File

@@ -188,6 +188,8 @@ public:
llvm::Value *emitProjectBoxCall(llvm::Value *box, llvm::Value *typeMetadata);
llvm::Value *emitAllocEmptyBoxCall();
// Emit a reference to the canonical type metadata record for the given AST
// type. This can be used to identify the type at runtime. For types with
// abstraction difference, the metadata contains the layout information for