jdk.internal.jvmci.hotspot

Interface HotSpotJVMCIRuntimeProvider

All Superinterfaces:

JVMCIRuntime

All Known Implementing Classes:

HotSpotJVMCIRuntime

public interface HotSpotJVMCIRuntimeProvider
extends JVMCIRuntime

Configuration information for the HotSpot JVMCI runtime.

Method Summary

Modifier and Type	Method and Description
ResolvedJavaType	fromClass(Class<?> clazz) Gets the JVMCI mirror for a Class object.
default int	getArrayBaseOffset(Kind kind) The offset from the origin of an array to the first element.
default int	getArrayIndexScale(Kind kind) The scale used for the index when accessing elements of an array of this kind.
CompilerToVM	getCompilerToVM()
HotSpotVMConfig	getConfig()
JavaType	lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve) Converts a name to a Java type.

Methods inherited from interface jdk.internal.jvmci.runtime.JVMCIRuntime

getHostJVMCIBackend, getJVMCIBackend

Method Detail

getConfig

HotSpotVMConfig getConfig()

getCompilerToVM

CompilerToVM getCompilerToVM()

lookupType

JavaType lookupType(String name,
                    HotSpotResolvedObjectType accessingType,
                    boolean resolve)

Converts a name to a Java type. This method attempts to resolve name to a ResolvedJavaType.

Parameters:

name - a well formed Java type in internal format

accessingType - the context of resolution which must be non-null

resolve - specifies whether resolution failure results in an unresolved type being return or a LinkageError being thrown

Returns:

a Java type for name which is guaranteed to be of type ResolvedJavaType if resolve == true

Throws:

LinkageError - if resolve == true and the resolution failed

NullPointerException - if accessingClass is null

fromClass

ResolvedJavaType fromClass(Class<?> clazz)

Gets the JVMCI mirror for a Class object.

Returns:

the ResolvedJavaType corresponding to javaClass

getArrayBaseOffset

default int getArrayBaseOffset(Kind kind)

The offset from the origin of an array to the first element.

Returns:

the offset in bytes

getArrayIndexScale

default int getArrayIndexScale(Kind kind)

The scale used for the index when accessing elements of an array of this kind.

Returns:

the scale in order to convert the index into a byte offset