ECMA-334: 11.2 Reference types

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11. Types 11.2 Reference types 11.2.1 Class types 11.2.2 The object type 11.2.3 The string type 11.2.4 Interface typespes 11.2.5 Array types 11.2.6 Delegate types 11.2.7 The null type

© 2006 ECMA International

11.2 Reference types

A reference type is a class type, an interface type, an array type, or a delegate type.

reference-type:

class-type

interface-type

array-type

delegate-type

class-type:

type-name

object

string

interface-type:

type-name

array-type:

non-array-type rank-specifiers

non-array-type:

value-type

class-type

interface-type

delegate-type

type-parameter

rank-specifiers:

rank-specifier

rank-specifiers rank-specifier

rank-specifier:

[ dim-separators_opt ]

dim-separators:

,

dim-separators ,

delegate-type:

type-name

A reference type value is a reference to an instance of the type, the latter known as an object. The special value null is compatible with all reference types and indicates the absence of an instance.