halide_handle_cplusplus_type

struct halide_handle_cplusplus_type

A structure to represent the fully scoped name of a C++ composite type for use in generating function signatures that use that type.

This is intended to be a constexpr usable type.

Although this is in the global namespace, it should be considered “Halide Internal” and subject to change; code outside Halide should avoid referencing it.

Public Types

enum Modifier

One set of modifiers on a type.

The const/volatile/restrict properties are “inside” the pointer property.

Values:

enumerator Const

Bitmask flag for “const”.

enumerator Volatile

Bitmask flag for “volatile”.

enumerator Restrict

Bitmask flag for “restrict”.

enumerator Pointer

Bitmask flag for a pointer “*”.

enumerator FunctionTypedef

Bitmask flag for a function typedef; when this is set, Pointer should also always be set.

enum ReferenceType

References are separate because they only occur at the outermost level.

No modifiers are needed for references as they are not allowed to apply to the reference itself. (This isn’t true for restrict, but that is a C++ extension anyway.) If modifiers are needed, the last entry in the above array would be the modifiers for the reference.

Values:

enumerator NotReference

enumerator LValueReference

enumerator RValueReference

Public Members

std::vector<uint8_t> cpp_type_modifiers

Qualifiers and indirections on type. 0 is innermost.