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https://github.com/FEX-Emu/FEX.git
synced 2026-10-13 11:00:29 +02:00
Tony Wasserka
6a6886305e
These annotations allow for a given type or parameter to be treated as "compatible" even if data layout analysis can't infer this automatically. assume_compatible_data_layout is more powerful than is_opaque, since it allows for structs containing members of a certain type to be automatically inferred as "compatible". Conversely however, is_opaque enforces that the underlying data is never accessed directly, since non-pointer uses of the type would still be detected as "incompatible".
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
namespace fexgen {
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struct returns_guest_pointer {};
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struct custom_host_impl {};
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struct custom_guest_entrypoint {};
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struct generate_guest_symtable {};
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struct indirect_guest_calls {};
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struct callback_annotation_base {
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// Prevent annotating multiple callback strategies
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bool prevent_multiple;
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};
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struct callback_stub : callback_annotation_base {};
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struct callback_guest : callback_annotation_base {};
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struct type_annotation_base { bool prevent_multiple; };
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// Pointers to types annotated with this will be passed through without change
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struct opaque_type : type_annotation_base {};
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// Function parameter annotation.
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// Pointers are passed through to host (extending to 64-bit if needed) without modifying the pointee.
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// The type passed to Host will be guest_layout<pointee_type>*.
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struct ptr_passthrough {};
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// Type / Function parameter annotation.
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// Assume objects of the given type are compatible across architectures,
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// even if the generator can't automatically prove this. For pointers, this refers to the pointee type.
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// NOTE: In contrast to opaque_type, this allows for non-pointer members with the annotated type to be repacked automatically.
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struct assume_compatible_data_layout : type_annotation_base {};
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} // namespace fexgen
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