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CorElementType Enumeration

Specifies a common language runtime Type, a type modifier, or information about a type in a metadata type signature.

typedef enum CorElementType {
    ELEMENT_TYPE_END            = 0x0,
    ELEMENT_TYPE_VOID           = 0x1,
    ELEMENT_TYPE_BOOLEAN        = 0x2,
    ELEMENT_TYPE_CHAR           = 0x3,
    ELEMENT_TYPE_I1             = 0x4,
    ELEMENT_TYPE_U1             = 0x5,
    ELEMENT_TYPE_I2             = 0x6,
    ELEMENT_TYPE_U2             = 0x7,
    ELEMENT_TYPE_I4             = 0x8,
    ELEMENT_TYPE_U4             = 0x9,
    ELEMENT_TYPE_I8             = 0xa,
    ELEMENT_TYPE_U8             = 0xb,
    ELEMENT_TYPE_R4             = 0xc,
    ELEMENT_TYPE_R8             = 0xd,
    ELEMENT_TYPE_STRING         = 0xe,
    
    ELEMENT_TYPE_PTR            = 0xf,
    ELEMENT_TYPE_BYREF          = 0x10,
    
    ELEMENT_TYPE_VALUETYPE      = 0x11,
    ELEMENT_TYPE_CLASS          = 0x12,
    ELEMENT_TYPE_VAR            = 0x13,
    ELEMENT_TYPE_ARRAY          = 0x14,
    ELEMENT_TYPE_GENERICINST    = 0x15,
    ELEMENT_TYPE_TYPEDBYREF     = 0x16,

    ELEMENT_TYPE_I              = 0x18,
    ELEMENT_TYPE_U              = 0x19,
    ELEMENT_TYPE_FNPTR          = 0x1B,
    ELEMENT_TYPE_OBJECT         = 0x1C,
    ELEMENT_TYPE_SZARRAY        = 0x1D,
    ELEMENT_TYPE_MVAR           = 0x1e,

    ELEMENT_TYPE_CMOD_REQD      = 0x1F,
    ELEMENT_TYPE_CMOD_OPT       = 0x20,

    ELEMENT_TYPE_INTERNAL       = 0x21,
    ELEMENT_TYPE_MAX            = 0x22,

    ELEMENT_TYPE_MODIFIER       = 0x40,
    ELEMENT_TYPE_SENTINEL       = 0x01 | ELEMENT_TYPE_MODIFIER,
    ELEMENT_TYPE_PINNED         = 0x05 | ELEMENT_TYPE_MODIFIER

} CorElementType;

Member

Description

ELEMENT_TYPE_END

Used internally.

ELEMENT_TYPE_VOID

A void type.

ELEMENT_TYPE_BOOLEAN

A Boolean type

ELEMENT_TYPE_CHAR

A character type.

ELEMENT_TYPE_I1

A signed 1-byte integer.

ELEMENT_TYPE_U1

An unsigned 1-byte integer.

ELEMENT_TYPE_I2

A signed 2-byte integer.

ELEMENT_TYPE_U2

An unsigned 2-byte integer.

ELEMENT_TYPE_I4

A signed 4-byte integer.

ELEMENT_TYPE_U4

An unsigned 4-byte integer.

ELEMENT_TYPE_I8

A signed 8-byte integer.

ELEMENT_TYPE_U8

An unsigned 8-byte integer.

ELEMENT_TYPE_R4

A 4-byte floating point.

ELEMENT_TYPE_R8

An 8-byte floating point.

ELEMENT_TYPE_STRING

A System.String type.

ELEMENT_TYPE_PTR

A pointer type modifier.

ELEMENT_TYPE_BYREF

A reference type modifier.

ELEMENT_TYPE_VALUETYPE

A value type modifier.

ELEMENT_TYPE_CLASS

A class type modifier.

ELEMENT_TYPE_VAR

A class variable type modifier.

ELEMENT_TYPE_ARRAY

A multi-dimensional array type modifier.

ELEMENT_TYPE_GENERICINST

A type modifier for generic types.

ELEMENT_TYPE_TYPEDBYREF

A typed reference.

ELEMENT_TYPE_I

Size of a native integer.

ELEMENT_TYPE_U

Size of an unsigned native integer.

ELEMENT_TYPE_FNPTR

A pointer to a function.

ELEMENT_TYPE_OBJECT

A System.Object type.

ELEMENT_TYPE_SZARRAY

A single-dimensional, zero lower-bound array type modifier.

ELEMENT_TYPE_MVAR

A method variable type modifier.

ELEMENT_TYPE_CMOD_REQD

A C language required modifier.

ELEMENT_TYPE_CMOD_OPT

A C language optional modifier.

ELEMENT_TYPE_INTERNAL

Used internally.

ELEMENT_TYPE_MAX

An invalid type.

ELEMENT_TYPE_MODIFIER

Used internally.

ELEMENT_TYPE_SENTINEL

A type modifier that is a sentinel for a list of a variable number of parameters.

ELEMENT_TYPE_PINNED

Used internally.

The type modifiers form the basis for representing more complex types. A CorElementType type modifier value is applied to the value that immediately follows it in the type signature. The value that follows the CorElementType type modifier value can be a CorElementType simple type value, a metadata token, or other value, as specified in the following table.

Note Note

All numbers (number, argument Count, metadata token, rank, count, and bound) are stored as compressed integers. See Standard ECMA-335 - Common Language Infrastructure (CLI) on the ECMA Web site for details.

Type modifier

Format

ELEMENT_TYPE_PTR

ELEMENT_TYPE_PTR <a CorElementType value>

ELEMENT_TYPE_BYREF

ELEMENT_TYPE_BYREF <a CorElementType value>

ELEMENT_TYPE_VALUETYPE

ELEMENT_TYPE_VALUETYPE <an mdTypeDef metadata token>

ELEMENT_TYPE_CLASS

ELEMENT_TYPE_CLASS <an mdTypeDef metadata token>

ELEMENT_TYPE_VAR

ELEMENT_TYPE_VAR <number>

ELEMENT_TYPE_ARRAY

ELEMENT_TYPE_ARRAY <a CorElementType value> <rank> <count1> <bound1> ... <countN> <boundN>

ELEMENT_TYPE_GENERICINST

ELEMENT_TYPE_GENERICINST <an mdTypeDef metadata token> <argument Count> <arg1> ... <argN>

ELEMENT_TYPE_FNPTR

ELEMENT_TYPE_FNPTR <complete signature for the function, including calling convention>

ELEMENT_TYPE_SZARRAY

ELEMENT_TYPE_SZARRAY <a CorElementType value>

ELEMENT_TYPE_MVAR

ELEMENT_TYPE_MVAR <number>

ELEMENT_TYPE_CMOD_REQD

ELEMENT_TYPE_<a mdTypeRef or mdTypeDef metadata token>

ELEMENT_TYPE_CMOD_OPT

E_T_CMOD_OPT <a mdTypeRef or mdTypeDef metadata token>

Platforms: See .NET Framework System Requirements.

Header: CorHdr.h

.NET Framework Versions: 4.5, 4, 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0, 1.1, 1.0

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