sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart - Issue 14997006: Introduce a UnionTypeMask, currently limited to 4 types.

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Unified Diff: sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart

Issue 14997006: Introduce a UnionTypeMask, currently limited to 4 types. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: Created 7 years, 7 months ago

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Index: sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart

===================================================================

--- sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart (revision 23010)

+++ sdk/lib/_internal/compiler/implementation/types/concrete_types_inferrer.dart (working copy)

@@ -851,6 +851,8 @@

if (concreteType == null) return null;

TypeMask typeMask = new TypeMask.nonNullEmpty();

for (BaseType baseType in concreteType.baseTypes) {

+ TypeMask other = baseTypeToTypeMask(baseType);

+ if (other == null) return null;

typeMask = typeMask.union(baseTypeToTypeMask(baseType), compiler);

}

return typeMask;