diff options
Diffstat (limited to 'source/slang/type-layout.h')
| -rw-r--r-- | source/slang/type-layout.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/source/slang/type-layout.h b/source/slang/type-layout.h index c326ae989..da2f0e4f7 100644 --- a/source/slang/type-layout.h +++ b/source/slang/type-layout.h @@ -553,6 +553,28 @@ public: int paramIndex = 0; }; + /// Layout information for a tagged union type. +class TaggedUnionTypeLayout : public TypeLayout +{ +public: + /// The layouts of each of the case types. + /// + /// The order of entries in this array matches + /// the order of case types on the original + /// `TaggedUnionType`, and the index of a case + /// type is also the tag value for that case. + /// + List<RefPtr<TypeLayout>> caseTypeLayouts; + + /// The byte offset for the tag field. + /// + /// The tag field will always be allocted as + /// a `uint`, so we don't store a separate layout + /// for it. + /// + LayoutSize tagOffset; +}; + // Layout information for a single shader entry point // within a program // @@ -579,6 +601,12 @@ public: usesAnySampleRateInput = 0x1, }; unsigned flags = 0; + + /// Layouts for all tagged union types required by this entry point. + /// + /// These are any tagged union types used by the generic + /// arguments that this entry point is being compiled with. + List<RefPtr<TypeLayout>> taggedUnionTypeLayouts; }; class GenericParamLayout : public Layout |