CorElementType Enumeration

Article
11/16/2012

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,
    ELEMENT_TYPE_R4_HFA         = 0x06 | ELEMENT_TYPE_MODIFIER,
    ELEMENT_TYPE_R8_HFA         = 0x07 | ELEMENT_TYPE_MODIFIER

} CorElementType;

Members

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.
ELEMENT_TYPE_R4_HFA	Used internally.
ELEMENT_TYPE_R8_HFA	Used internally.

Remarks

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

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>

Requirements

Platforms: See .NET Framework System Requirements.

Header: CorHdr.h

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

CorElementType Enumeration

Members

Remarks

Requirements

See Also

Other Resources

Additional resources