sdkgenny.TemplateParameter

Inherits from Type.

A placeholder type representing a template parameter (e.g. T in template <typename T>). Has a size of 0 — it is never emitted directly but is substituted for a concrete type when the template is instantiated.

TemplateParameter types are created via Struct:template_parameter(name) or automatically by the genny parser when it encounters a template <typename ...> declaration.

local my_struct = ns:struct("Container")
local T = my_struct:template_parameter("T")

-- T can be used as a field type in the template definition
my_struct:field("value"):type(T)
my_struct:field("ptr"):type(T:ptr())
my_struct:field("items"):type(T:array():count(4))

TemplateParameter has no additional methods beyond those inherited from Type. It supports the standard ptr(), ref(), and array() factory methods for building compound types from the placeholder.

During code generation, template structs emit a template<typename T> prefix in C++ headers. The TemplateParameter itself is skipped — the C++ compiler handles substitution when the template is instantiated.