jdk.internal.jvmci.hotspot

Interface HotSpotObjectConstant

All Superinterfaces:

Constant, HotSpotConstant, JavaConstant, JavaValue, KindProvider, TrustedInterface, Value, VMConstant

All Known Implementing Classes:

HotSpotObjectConstantImpl

public interface HotSpotObjectConstant
extends JavaConstant, HotSpotConstant, VMConstant

Represents a constant non-null object reference, within the compiler and across the compiler/runtime interface.

Nested Class Summary

Nested classes/interfaces inherited from interface jdk.internal.jvmci.meta.Value

Value.IllegalValue

Field Summary

Fields inherited from interface jdk.internal.jvmci.meta.JavaConstant

DOUBLE_0, DOUBLE_1, FALSE, FLOAT_0, FLOAT_1, INT_0, INT_1, INT_2, INT_MINUS_1, LONG_0, LONG_1, NULL_POINTER, TRUE

Fields inherited from interface jdk.internal.jvmci.meta.Value

ILLEGAL, NO_VALUES

Method Summary

Modifier and Type	Method and Description
<T> T	asObject(Class<T> type) Gets the object represented by this constant represents if it is of a given type.
Object	asObject(ResolvedJavaType type) Gets the object represented by this constant represents if it is of a given type.
JavaConstant	compress()
JavaConstant	getCallSiteTarget(Assumptions assumptions) Gets the result of CallSite.getTarget() for the CallSite object represented by this constant.
JavaConstant	getClassLoader() Gets the result of Class.getClassLoader() for the Class object represented by this constant.
JavaConstant	getComponentType() Gets the result of Class.getComponentType() for the Class object represented by this constant.
int	getIdentityHashCode() Gets the identity has code for the object represented by this constant.
JavaConstant	getSuperclass() Gets the result of Class.getSuperclass() for the Class object represented by this constant.
HotSpotResolvedObjectType	getType() Gets the resolved Java type of the object represented by this constant.
boolean	isInternedString() Determines if this constant represents an interned string.
JavaConstant	uncompress()

Methods inherited from interface jdk.internal.jvmci.meta.JavaConstant

add, asBoolean, asBoxedPrimitive, asDouble, asFloat, asInt, asLong, defaultForKind, forBoolean, forBoxedPrimitive, forByte, forChar, forDouble, forFloat, forIllegal, forInt, forIntegerKind, forLong, forPrimitiveInt, forShort, isDefaultForKind, isNonNull, isNull, isNull, mul, one, toString, toValueString, zero

Methods inherited from interface jdk.internal.jvmci.meta.JavaValue

getKind

Methods inherited from interface jdk.internal.jvmci.meta.Value

getLIRKind, getPlatformKind, identityEquals

Methods inherited from interface jdk.internal.jvmci.meta.KindProvider

getKind

Methods inherited from interface jdk.internal.jvmci.hotspot.HotSpotConstant

isCompressed

Method Detail

compress

JavaConstant compress()

uncompress

JavaConstant uncompress()

getType

HotSpotResolvedObjectType getType()

Gets the resolved Java type of the object represented by this constant.

getClassLoader

JavaConstant getClassLoader()

Gets the result of Class.getClassLoader() for the Class object represented by this constant.

Returns:

null if this constant does not represent a Class object

getIdentityHashCode

int getIdentityHashCode()

Gets the identity has code for the object represented by this constant.

getComponentType

JavaConstant getComponentType()

Gets the result of Class.getComponentType() for the Class object represented by this constant.

Returns:

null if this constant does not represent a Class object

getSuperclass

JavaConstant getSuperclass()

Gets the result of Class.getSuperclass() for the Class object represented by this constant.

Returns:

null if this constant does not represent a Class object

getCallSiteTarget

JavaConstant getCallSiteTarget(Assumptions assumptions)

Gets the result of CallSite.getTarget() for the CallSite object represented by this constant.

Parameters:

assumptions - used to register an assumption that the CallSite's target does not change

Returns:

null if this constant does not represent a CallSite object

isInternedString

boolean isInternedString()

Determines if this constant represents an interned string.

asObject

<T> T asObject(Class<T> type)

Gets the object represented by this constant represents if it is of a given type.

Parameters:

type - the expected type of the object represented by this constant. If the object is required to be of this type, then wrap the call to this method in Objects.requireNonNull(Object).

Returns:

the object value represented by this constant if it is an instance of type otherwise null

asObject

Object asObject(ResolvedJavaType type)

Gets the object represented by this constant represents if it is of a given type.

Parameters:

type - the expected type of the object represented by this constant. If the object is required to be of this type, then wrap the call to this method in Objects.requireNonNull(Object).

Returns:

the object value represented by this constant if it is an instance of type otherwise null