Modifier and Type	Class and Description
private static class	DirectCodeBuilder.DedupLineNumberTableAttribute
private static record	DirectCodeBuilder.DeferredLabel
private static class	DirectCodeBuilder.LabelOverflowException

Modifier and Type	Field and Description
pack-priv final BufWriter	bytecodesBufWriter
private final List<CharacterRange>	characterRanges
private Attribute<CodeAttribute>	content
pack-priv List<DirectCodeBuilder.DeferredLabel>	deferredLabels
private final Label	endLabel
pack-priv final List<AbstractPseudoInstruction.ExceptionCatchImpl>	handlers
private DirectCodeBuilder.DedupLineNumberTableAttribute	lineNumberWriter
private final List<LocalVariable>	localVariables
private final List<LocalVariableType>	localVariableTypes
pack-priv final MethodInfo	methodInfo
private CodeAttribute	mruParent
private int[]	mruParentTable
private Map<CodeAttribute, int[]>	parentMap
private final Label	startLabel
private int	topLocal
private final boolean	transformBackJumps
private final boolean	transformFwdJumps

Access	Constructor and Description
private	DirectCodeBuilder(MethodInfo methodInfo, SplitConstantPool constantPool, ClassFileImpl context, CodeModel original, boolean transformFwdJumps)

Method Summary

Modifier and Type	Method and Description
public void	addCharacterRange(CharacterRange element)
public void	addHandler(ExceptionCatch element)
public void	addLocalVariable(LocalVariable element)
public void	addLocalVariableType(LocalVariableType element)
public int	allocateLocal(TypeKind the type of the local variable typeKind) Implements java.lang.classfile.CodeBuilder.allocateLocal. Returns the local variable slot of a fresh local variable.
public static Attribute<CodeAttribute>	build(MethodInfo methodInfo, Consumer<? super CodeBuilder> handler, SplitConstantPool constantPool, ClassFileImpl context, CodeModel original)
private void	buildContent()
private boolean	codeAndExceptionsMatch(int codeLength)
public int	curPc()
public int	curTopLocal() Implements jdk.internal.classfile.impl.TerminalCodeBuilder.curTopLocal.
public Label	endLabel() Implements java.lang.classfile.CodeBuilder.endLabel. Returns the label associated with the end of the current block.
public Label	getLabel(int bci) Implements jdk.internal.classfile.impl.LabelContext.getLabel.
public int	labelToBci(Label label) Implements jdk.internal.classfile.impl.LabelContext.labelToBci.
public MethodInfo	methodInfo()
public Label	newLabel() Implements java.lang.classfile.CodeBuilder.newLabel, jdk.internal.classfile.impl.LabelContext.newLabel. Returns a fresh unbound label.
public int	parameterSlot(int the index of the parameter paramNo) Implements java.lang.classfile.CodeBuilder.parameterSlot. Returns the local variable slot associated with the specified parameter.
private void	processDeferredLabels()
public int	receiverSlot() Implements java.lang.classfile.CodeBuilder.receiverSlot. Returns the local variable slot associated with the receiver.
public void	setLabelTarget(Label label)
public void	setLabelTarget(Label label, int bci) Implements jdk.internal.classfile.impl.LabelContext.setLabelTarget.
public void	setLineNumber(int lineNo)
public Label	startLabel() Implements java.lang.classfile.CodeBuilder.startLabel. Returns the label associated with the beginning of the current block.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.
public CodeBuilder	with(CodeElement the element element) Implements java.lang.classfile.ClassFileBuilder.with. Integrate the `ClassFileElement` into the entity being built.
public void	writeArgumentConstant(Opcode opcode, int value)
public void	writeBranch(Opcode op, Label target)
public void	writeBytecode(Opcode opcode)
private void	writeExceptionHandlers(BufWriter buf)
public void	writeFieldAccess(Opcode opcode, FieldRefEntry ref)
public void	writeIncrement(int slot, int val)
public void	writeInvokeDynamic(InvokeDynamicEntry ref)
public void	writeInvokeInterface(Opcode opcode, InterfaceMethodRefEntry ref, int count)
public void	writeInvokeNormal(Opcode opcode, MemberRefEntry ref)
private void	writeLabelOffset(int nBytes, int instructionPc, Label label)
public void	writeLoadConstant(Opcode opcode, LoadableConstantEntry value)
public void	writeLocalVar(Opcode opcode, int localVar)
public void	writeLookupSwitch(Label defaultTarget, List<SwitchCase> cases)
public void	writeNewMultidimensionalArray(int dimensions, ClassEntry type)
public void	writeNewObject(ClassEntry type)
public void	writeNewPrimitiveArray(int newArrayCode)
public void	writeNewReferenceArray(ClassEntry type)
public void	writeTableSwitch(int low, int high, Label defaultTarget, List<SwitchCase> cases)
public void	writeTypeCheck(Opcode opcode, ClassEntry type)

Inherited from jdk.internal.classfile.impl.AbstractDirectBuilder:: constantPool original setOriginal writeAttribute

Field Detail

bytecodesBufWriter	back to summary
pack-priv final BufWriter bytecodesBufWriter

characterRanges	back to summary
private final List<CharacterRange> characterRanges

content	back to summary
private Attribute<CodeAttribute> content

deferredLabels	back to summary
pack-priv List<DirectCodeBuilder.DeferredLabel> deferredLabels

endLabel	back to summary
private final Label endLabel

handlers	back to summary
pack-priv final List<AbstractPseudoInstruction.ExceptionCatchImpl> handlers

lineNumberWriter	back to summary
private DirectCodeBuilder.DedupLineNumberTableAttribute lineNumberWriter

localVariables	back to summary
private final List<LocalVariable> localVariables

localVariableTypes	back to summary
private final List<LocalVariableType> localVariableTypes

methodInfo	back to summary
pack-priv final MethodInfo methodInfo

mruParent	back to summary
private CodeAttribute mruParent

mruParentTable	back to summary
private int[] mruParentTable

parentMap	back to summary
private Map<CodeAttribute, int[]> parentMap

startLabel	back to summary
private final Label startLabel

topLocal	back to summary
private int topLocal

transformBackJumps	back to summary
private final boolean transformBackJumps

transformFwdJumps	back to summary
private final boolean transformFwdJumps

Constructor Detail

DirectCodeBuilder	back to summary
private DirectCodeBuilder(MethodInfo methodInfo, SplitConstantPool constantPool, ClassFileImpl context, CodeModel original, boolean transformFwdJumps)

Method Detail

addCharacterRange	back to summary
public void addCharacterRange(CharacterRange element)

addHandler	back to summary
public void addHandler(ExceptionCatch element)

addLocalVariable	back to summary
public void addLocalVariable(LocalVariable element)

addLocalVariableType	back to summary
public void addLocalVariableType(LocalVariableType element)

allocateLocal back to summary

allocateLocal	back to summary
public int allocateLocal(TypeKind typeKind) Implements java.lang.classfile.CodeBuilder.allocateLocal. Doc from java.lang.classfile.CodeBuilder.allocateLocal. Returns the local variable slot of a fresh local variable. This method makes reasonable efforts to determine which slots are in use and which are not. When transforming a method, fresh locals begin at the `maxLocals` of the original method. For a method being built directly, fresh locals begin after the last parameter slot. If the current code builder is a "block" code builder provided by `block(Consumer)`, `ifThen(Consumer)`, or `ifThenElse(Consumer, Consumer)`, at the end of the block, locals are reset to their value at the beginning of the block. Parameters typeKind:TypeKind the type of the local variable Returns:int the local variable slot of a fresh local variable Annotations @Override

public int allocateLocal(TypeKind typeKind)

Implements java.lang.classfile.CodeBuilder.allocateLocal.

Doc from java.lang.classfile.CodeBuilder.allocateLocal.

Returns the local variable slot of a fresh local variable. This method makes reasonable efforts to determine which slots are in use and which are not. When transforming a method, fresh locals begin at the maxLocals of the original method. For a method being built directly, fresh locals begin after the last parameter slot.

If the current code builder is a "block" code builder provided by block(Consumer), ifThen(Consumer), or ifThenElse(Consumer, Consumer), at the end of the block, locals are reset to their value at the beginning of the block.

Parameters

typeKind:TypeKind: the type of the local variable

Returns:int

the local variable slot of a fresh local variable

Annotations

@Override

build	back to summary
public static Attribute<CodeAttribute> build(MethodInfo methodInfo, Consumer<? super CodeBuilder> handler, SplitConstantPool constantPool, ClassFileImpl context, CodeModel original)

buildContent	back to summary
private void buildContent()

codeAndExceptionsMatch	back to summary
private boolean codeAndExceptionsMatch(int codeLength)

curPc	back to summary
public int curPc()

curTopLocal	back to summary
public int curTopLocal() Implements jdk.internal.classfile.impl.TerminalCodeBuilder.curTopLocal.

endLabel back to summary

endLabel	back to summary
public Label endLabel() Implements java.lang.classfile.CodeBuilder.endLabel. Doc from java.lang.classfile.CodeBuilder.endLabel. Returns the label associated with the end of the current block. If the current CodeBuilder is not a "block" builder, such as those provided by `block(Consumer)` or `ifThenElse(Consumer, Consumer)`, the current block will be the entire method body. Returns:Label the label associated with the end of the current block Annotations @Override

public Label endLabel()

Implements java.lang.classfile.CodeBuilder.endLabel.

Doc from java.lang.classfile.CodeBuilder.endLabel.

Returns the label associated with the end of the current block. If the current CodeBuilder is not a "block" builder, such as those provided by block(Consumer) or ifThenElse(Consumer, Consumer), the current block will be the entire method body.

Returns:Label

the label associated with the end of the current block

Annotations

@Override

getLabel	back to summary
public Label getLabel(int bci) Implements jdk.internal.classfile.impl.LabelContext.getLabel. Annotations @Override

getLabel

back to summary

public Label getLabel(int bci)

Implements jdk.internal.classfile.impl.LabelContext.getLabel.

Annotations

@Override

labelToBci	back to summary
public int labelToBci(Label label) Implements jdk.internal.classfile.impl.LabelContext.labelToBci. Annotations @Override

labelToBci

back to summary

public int labelToBci(Label label)

Implements jdk.internal.classfile.impl.LabelContext.labelToBci.

Annotations

@Override

methodInfo	back to summary
public MethodInfo methodInfo()

newLabel	back to summary
public Label newLabel() Implements java.lang.classfile.CodeBuilder.newLabel, jdk.internal.classfile.impl.LabelContext.newLabel. Doc from java.lang.classfile.CodeBuilder.newLabel. Returns a fresh unbound label. Returns:Label a fresh unbound label Annotations @Override

newLabel

back to summary

public Label newLabel()

Implements java.lang.classfile.CodeBuilder.newLabel, jdk.internal.classfile.impl.LabelContext.newLabel.

Doc from java.lang.classfile.CodeBuilder.newLabel.

Returns a fresh unbound label.

Returns:Label

a fresh unbound label

Annotations

@Override

parameterSlot back to summary

parameterSlot	back to summary
public int parameterSlot(int paramNo) Implements java.lang.classfile.CodeBuilder.parameterSlot. Doc from java.lang.classfile.CodeBuilder.parameterSlot. Returns the local variable slot associated with the specified parameter. . The returned value is adjusted for the receiver slot (if the method is an instance method) and for the requirement that `long` and `double` values require two slots. Parameters paramNo:int the index of the parameter Returns:int the local variable slot associated with the specified parameter Annotations @Override

public int parameterSlot(int paramNo)

Implements java.lang.classfile.CodeBuilder.parameterSlot.

Doc from java.lang.classfile.CodeBuilder.parameterSlot.

Returns the local variable slot associated with the specified parameter. . The returned value is adjusted for the receiver slot (if the method is an instance method) and for the requirement that long and double values require two slots.

Parameters

paramNo:int: the index of the parameter

Returns:int

the local variable slot associated with the specified parameter

Annotations

@Override

processDeferredLabels	back to summary
private void processDeferredLabels()

receiverSlot	back to summary
public int receiverSlot() Implements java.lang.classfile.CodeBuilder.receiverSlot. Doc from java.lang.classfile.CodeBuilder.receiverSlot. Returns the local variable slot associated with the receiver. . Returns:int the local variable slot associated with the receiver Annotations @Override

receiverSlot

back to summary

public int receiverSlot()

Implements java.lang.classfile.CodeBuilder.receiverSlot.

Doc from java.lang.classfile.CodeBuilder.receiverSlot.

Returns the local variable slot associated with the receiver. .

Returns:int

the local variable slot associated with the receiver

Annotations

@Override

setLabelTarget	back to summary
public void setLabelTarget(Label label)

setLabelTarget	back to summary
public void setLabelTarget(Label label, int bci) Implements jdk.internal.classfile.impl.LabelContext.setLabelTarget. Annotations @Override

setLabelTarget

back to summary

public void setLabelTarget(Label label, int bci)

Implements jdk.internal.classfile.impl.LabelContext.setLabelTarget.

Annotations

@Override

setLineNumber	back to summary
public void setLineNumber(int lineNo)

startLabel back to summary

startLabel	back to summary
public Label startLabel() Implements java.lang.classfile.CodeBuilder.startLabel. Doc from java.lang.classfile.CodeBuilder.startLabel. Returns the label associated with the beginning of the current block. If the current CodeBuilder is not a "block" builder, such as those provided by `block(Consumer)` or `ifThenElse(Consumer, Consumer)`, the current block will be the entire method body. Returns:Label the label associated with the beginning of the current block Annotations @Override

public Label startLabel()

Implements java.lang.classfile.CodeBuilder.startLabel.

Doc from java.lang.classfile.CodeBuilder.startLabel.

Returns the label associated with the beginning of the current block. If the current CodeBuilder is not a "block" builder, such as those provided by block(Consumer) or ifThenElse(Consumer, Consumer), the current block will be the entire method body.

Returns:Label

the label associated with the beginning of the current block

Annotations

@Override

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Satisfying this method's contract implies a non-`null` result must be returned. Returns:String a string representation of the object Annotations @Override

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations

@Override

with back to summary

with	back to summary
public CodeBuilder with(CodeElement element) Implements java.lang.classfile.ClassFileBuilder.with. Doc from java.lang.classfile.ClassFileBuilder.with. Integrate the `ClassFileElement` into the entity being built. Parameters element:CodeElement the element Returns:CodeBuilder this builder Annotations @Override

public CodeBuilder with(CodeElement element)

Implements java.lang.classfile.ClassFileBuilder.with.

Doc from java.lang.classfile.ClassFileBuilder.with.

Integrate the ClassFileElement into the entity being built.

Parameters

element:CodeElement: the element

Returns:CodeBuilder

this builder

Annotations

@Override

writeArgumentConstant	back to summary
public void writeArgumentConstant(Opcode opcode, int value)

writeBranch	back to summary
public void writeBranch(Opcode op, Label target)

writeBytecode	back to summary
public void writeBytecode(Opcode opcode)

writeExceptionHandlers	back to summary
private void writeExceptionHandlers(BufWriter buf)

writeFieldAccess	back to summary
public void writeFieldAccess(Opcode opcode, FieldRefEntry ref)

writeIncrement	back to summary
public void writeIncrement(int slot, int val)

writeInvokeDynamic	back to summary
public void writeInvokeDynamic(InvokeDynamicEntry ref)

writeInvokeInterface	back to summary
public void writeInvokeInterface(Opcode opcode, InterfaceMethodRefEntry ref, int count)

writeInvokeNormal	back to summary
public void writeInvokeNormal(Opcode opcode, MemberRefEntry ref)

writeLabelOffset	back to summary
private void writeLabelOffset(int nBytes, int instructionPc, Label label)

writeLoadConstant	back to summary
public void writeLoadConstant(Opcode opcode, LoadableConstantEntry value)

writeLocalVar	back to summary
public void writeLocalVar(Opcode opcode, int localVar)

writeLookupSwitch	back to summary
public void writeLookupSwitch(Label defaultTarget, List<SwitchCase> cases)

writeNewMultidimensionalArray	back to summary
public void writeNewMultidimensionalArray(int dimensions, ClassEntry type)

writeNewObject	back to summary
public void writeNewObject(ClassEntry type)

writeNewPrimitiveArray	back to summary
public void writeNewPrimitiveArray(int newArrayCode)

writeNewReferenceArray	back to summary
public void writeNewReferenceArray(ClassEntry type)

writeTableSwitch	back to summary
public void writeTableSwitch(int low, int high, Label defaultTarget, List<SwitchCase> cases)

writeTypeCheck	back to summary
public void writeTypeCheck(Opcode opcode, ClassEntry type)

jdk.internal.classfile.impl back to summary

private Class DirectCodeBuilder.DedupLineNumberTableAttribute

Class Inheritance

extends UnboundAttribute.AdHocAttribute<LineNumberTableAttribute>

java.lang.Object
jdk.internal.classfile.impl.AbstractElement
jdk.internal.classfile.impl.UnboundAttribute
jdk.internal.classfile.impl.UnboundAttribute.AdHocAttribute
jdk.internal.classfile.impl.DirectCodeBuilder.DedupLineNumberTableAttribute

Field Summary

Modifier and Type	Field and Description
private final BufWriterImpl	buf
private int	lastLine
private int	lastPc
private int	writtenLine

Constructor Summary

Access	Constructor and Description
public	DedupLineNumberTableAttribute(ConstantPoolBuilder constantPool, ClassFileImpl context)

Method Summary

Modifier and Type	Method and Description
private void	push()
public void	writeBody(BufWriter b) Implements abstract jdk.internal.classfile.impl.UnboundAttribute.AdHocAttribute.writeBody.
public void	writeLineNumber(int pc, int lineNo)
public void	writeTo(BufWriter the writer b) Overrides jdk.internal.classfile.impl.UnboundAttribute.AdHocAttribute.writeTo. Implements java.lang.classfile.WritableElement.writeTo. Writes the element to the specified writer

Field Detail

buf	back to summary
private final BufWriterImpl buf

lastLine	back to summary
private int lastLine

lastPc	back to summary
private int lastPc

writtenLine	back to summary
private int writtenLine

Constructor Detail

DedupLineNumberTableAttribute	back to summary
public DedupLineNumberTableAttribute(ConstantPoolBuilder constantPool, ClassFileImpl context)

Method Detail

push	back to summary
private void push()

writeBody

back to summary

public void writeBody(BufWriter b)

Implements abstract jdk.internal.classfile.impl.UnboundAttribute.AdHocAttribute.writeBody.

Annotations

@Override

writeLineNumber	back to summary
public void writeLineNumber(int pc, int lineNo)

writeTo

back to summary

public void writeTo(BufWriter b)

Overrides jdk.internal.classfile.impl.UnboundAttribute.AdHocAttribute.writeTo.

Implements java.lang.classfile.WritableElement.writeTo.

Doc from java.lang.classfile.WritableElement.writeTo.

Writes the element to the specified writer

Parameters

b:BufWriter: the writer

Annotations

@Override

jdk.internal.classfile.impl back to summary

private final Record DirectCodeBuilder.DeferredLabel

Class Inheritance

extends Record

java.lang.Object
java.lang.Record
jdk.internal.classfile.impl.DirectCodeBuilder.DeferredLabel

Record Components

labelPc:int
size:int
instructionPc:int
label:Label

Field Summary

Modifier and Type	Field and Description
private final int	instructionPc Record Component accessed by instructionPc().
private final Label	label Record Component accessed by label().
private final int	labelPc Record Component accessed by labelPc().
private final int	size Record Component accessed by size().

Constructor Summary

Access	Constructor and Description
private	DeferredLabel(int labelPc, int size, int instructionPc, Label label)

Method Summary

Modifier and Type	Method and Description
public final boolean	equals(Object the reference object with which to compare. o) Implements abstract java.lang.Record.equals. Indicates whether some other object is "equal to" this one.
public final int	hashCode() Implements abstract java.lang.Record.hashCode. Returns a hash code value for the record.
public int	instructionPc() Record Component getter of instructionPc.
public Label	label() Record Component getter of label.
public int	labelPc() Record Component getter of labelPc.
public int	size() Record Component getter of size.
public final String	toString() Implements abstract java.lang.Record.toString. Returns a string representation of the record.

Field Detail

instructionPc	back to summary
private final int instructionPc Record Component accessed by instructionPc().

label	back to summary
private final Label label Record Component accessed by label().

labelPc	back to summary
private final int labelPc Record Component accessed by labelPc().

size	back to summary
private final int size Record Component accessed by size().

Constructor Detail

DeferredLabel	back to summary
private DeferredLabel(int labelPc, int size, int instructionPc, Label label)

Method Detail

equals back to summary

public final boolean equals(Object o)

Implements abstract java.lang.Record.equals.

Doc from java.lang.Record.equals.

Indicates whether some other object is "equal to" this one. In addition to the general contract of Object.equals, record classes must further obey the invariant that when a record instance is "copied" by passing the result of the record component accessor methods to the canonical constructor, as follows:

    R copy = new R(r.c1(), r.c2(), ..., r.cn());

then it must be the case that r.equals(copy).

Parameters

o:Object: the reference object with which to compare.

Returns:boolean

true if this record is equal to the argument; false otherwise.

hashCode back to summary

public final int hashCode()

Implements abstract java.lang.Record.hashCode.

Doc from java.lang.Record.hashCode.

Returns a hash code value for the record. Obeys the general contract of Object.hashCode. For records, hashing behavior is constrained by the refined contract of Record.equals, so that any two records created from the same components must have the same hash code.

Returns:int: a hash code value for this record.

instructionPc	back to summary
public int instructionPc() Record Component getter of instructionPc.

label	back to summary
public Label label() Record Component getter of label.

labelPc	back to summary
public int labelPc() Record Component getter of labelPc.

size	back to summary
public int size() Record Component getter of size.

toString back to summary

public final String toString()

Implements abstract java.lang.Record.toString.

Doc from java.lang.Record.toString.

Returns a string representation of the record. In accordance with the general contract of Object#toString(), the toString method returns a string that "textually represents" this record. The result should be a concise but informative representation that is easy for a person to read.

In addition to this general contract, record classes must further participate in the invariant that any two records which are equal must produce equal strings. This invariant is necessarily relaxed in the rare case where corresponding equal component values might fail to produce equal strings for themselves.

Returns:String: a string representation of the object.

public final Class DirectCodeBuilder

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class DirectCodeBuilder.DedupLineNumberTableAttribute

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Record DirectCodeBuilder.DeferredLabel

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class DirectCodeBuilder.LabelOverflowException

Field Summary

Constructor Summary

Field Detail

Constructor Detail