neuray API Programmer's Manual

mi::neuraylib::IExpression_parameter Class Reference

[MDL type system]

Description

A parameter reference expression. Parameter reference expressions are used for defaults that reference earlier parameters. For example consider 

‎ float foo(float a, float b, float c = b) { ... }
The default for the parameter c is of type mi::neuraylib::IExpression_parameter. Its index is 1, equal to the parameter index of parameter b.

Parameter reference expressions appear as defaults of material or function definitions. They are expanded during mi::neuraylib::IFunction_definition::create_function_call(), mi::neuraylib::IFunction_call::reset_argument(), and mi::neuraylib::Definition_wrapper::create_instance().

mi::base::Interface_declare\< ..., neuraylib::IExpression \>Mixin class template for deriving new interface declarations. The interface to MDL expressions.The interface to MDL expressions. mi::base::Interface_declare\< ... \>Mixin class template for deriving new interface declarations. The basic extensible interface.The basic extensible interface.

Public Member Functions

virtual Size get_index() const =0
Returns the index of the referenced parameter.
virtual void set_index( Size index) =0
Sets the index of the referenced parameter.

Static Public Variables

static const Kind s_kind = EK_PARAMETER
The kind of this subclass.

Member Functions

virtual Size mi::​neuraylib::​IExpression_parameter::get_index() const [pure virtual]

Returns the index of the referenced parameter.

virtual void mi::​neuraylib::​IExpression_parameter::set_index( Size index) [pure virtual]

Sets the index of the referenced parameter.

Variables

const Kind mi::​neuraylib::​IExpression_parameter::s_kind = EK_PARAMETER [static]

The kind of this subclass.