Module org.glavo.classfile

Package org.glavo.classfile.impl

Class TransformingCodeBuilder

java.lang.Object

org.glavo.classfile.impl.TransformingCodeBuilder

All Implemented Interfaces:

Consumer<CodeElement>, ClassfileBuilder<CodeElement,CodeBuilder>, CodeBuilder, TerminalCodeBuilder

public final class TransformingCodeBuilder
extends Object
implements TerminalCodeBuilder

Nested Class Summary

Nested classes/interfaces inherited from interface org.glavo.classfile.CodeBuilder

CodeBuilder.BlockCodeBuilder, CodeBuilder.CatchBuilder

Constructor Summary

Constructors

Constructor	Description
TransformingCodeBuilder(CodeBuilder delegate, Consumer<CodeElement> consumer)

Method Summary

Modifier and Type	Method	Description
int	allocateLocal(TypeKind typeKind)	Returns the local variable slot of a fresh local variable.
ConstantPoolBuilder	constantPool()	Returns the constant pool builder associated with this builder.
Label	endLabel()	Returns the label associated with the end of the current block.
Label	newLabel()	Returns a fresh unbound label.
Optional<CodeModel>	original()	Returns the CodeModel representing the method body being transformed, if this code builder represents the transformation of some CodeModel.
int	parameterSlot(int paramNo)	Returns the local variable slot associated with the specified parameter.
int	receiverSlot()	Returns the local variable slot associated with the receiver.
Label	startLabel()	Returns the label associated with the beginning of the current block.
CodeBuilder	with(CodeElement e)	Integrate the ClassfileElement into the entity being built.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.glavo.classfile.ClassfileBuilder

accept, canWriteDirect, transform

Methods inherited from interface org.glavo.classfile.CodeBuilder

aaload, aastore, aconst_null, aload, anewarray, anewarray, areturn, arraylength, arrayLoadInstruction, arrayStoreInstruction, astore, athrow, baload, bastore, bipush, block, branchInstruction, caload, castore, characterRange, checkcast, checkcast, constantInstruction, constantInstruction, convertInstruction, d2f, d2i, d2l, dadd, daload, dastore, dcmpg, dcmpl, dconst_0, dconst_1, ddiv, dload, dmul, dneg, drem, dreturn, dstore, dsub, dup, dup_x1, dup_x2, dup2, dup2_x1, dup2_x2, exceptionCatch, exceptionCatch, exceptionCatch, exceptionCatchAll, f2d, f2i, f2l, fadd, faload, fastore, fcmpg, fcmpl, fconst_0, fconst_1, fconst_2, fdiv, fieldInstruction, fieldInstruction, fload, fmul, fneg, frem, freturn, fstore, fsub, getfield, getfield, getstatic, getstatic, goto_, goto_w, i2b, i2c, i2d, i2f, i2l, i2s, iadd, iaload, iand, iastore, iconst_0, iconst_1, iconst_2, iconst_3, iconst_4, iconst_5, iconst_m1, idiv, if_acmpeq, if_acmpne, if_icmpeq, if_icmpge, if_icmpgt, if_icmple, if_icmplt, if_icmpne, if_nonnull, if_null, ifeq, ifge, ifgt, ifle, iflt, ifne, ifThen, ifThen, ifThenElse, ifThenElse, iinc, iload, imul, incrementInstruction, ineg, instanceof_, instanceof_, invokedynamic, invokedynamic, invokeDynamicInstruction, invokeDynamicInstruction, invokeInstruction, invokeInstruction, invokeinterface, invokeinterface, invokespecial, invokespecial, invokespecial, invokespecial, invokestatic, invokestatic, invokestatic, invokestatic, invokevirtual, invokevirtual, ior, irem, ireturn, ishl, ishr, istore, isub, iushr, ixor, l2d, l2f, l2i, labelBinding, ladd, laload, land, lastore, lcmp, lconst_0, lconst_1, ldc, ldiv, lineNumber, lload, lmul, lneg, loadInstruction, localVariable, localVariable, localVariableType, localVariableType, lookupswitch, lookupSwitchInstruction, lor, lrem, lreturn, lshl, lshr, lstore, lsub, lushr, lxor, monitorenter, monitorexit, monitorInstruction, multianewarray, multianewarray, new_, new_, newarray, newBoundLabel, newMultidimensionalArrayInstruction, newMultidimensionalArrayInstruction, newObjectInstruction, newObjectInstruction, newPrimitiveArrayInstruction, newReferenceArrayInstruction, newReferenceArrayInstruction, nop, nopInstruction, operatorInstruction, pop, pop2, putfield, putfield, putstatic, putstatic, return_, returnInstruction, saload, sastore, sipush, stackInstruction, storeInstruction, swap, tableswitch, tableswitch, tableSwitchInstruction, throwInstruction, transforming, trying, typeCheckInstruction, typeCheckInstruction

Methods inherited from interface java.util.function.Consumer

andThen

Constructor Details

TransformingCodeBuilder

public TransformingCodeBuilder(CodeBuilder delegate,
 Consumer<CodeElement> consumer)

Method Details

with

public CodeBuilder with(CodeElement e)

Description copied from interface: ClassfileBuilder

Integrate the ClassfileElement into the entity being built.

Specified by:

with in interface ClassfileBuilder<CodeElement,CodeBuilder>

Parameters:

e - the element

Returns:

this builder

original

public Optional<CodeModel> original()

Description copied from interface: CodeBuilder

Returns the CodeModel representing the method body being transformed, if this code builder represents the transformation of some CodeModel.

Specified by:

original in interface CodeBuilder

Returns:

the CodeModel representing the method body being transformed, if this code builder represents the transformation of some CodeModel

newLabel

public Label newLabel()

Description copied from interface: CodeBuilder

Returns a fresh unbound label.

Specified by:

newLabel in interface CodeBuilder

Returns:

a fresh unbound label

startLabel

public Label startLabel()

Description copied from interface: CodeBuilder

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 CodeBuilder.block(Consumer) or CodeBuilder.ifThenElse(Consumer, Consumer), the current block will be the entire method body.

Specified by:

startLabel in interface CodeBuilder

Returns:

the label associated with the beginning of the current block

endLabel

public Label endLabel()

Description copied from interface: CodeBuilder

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 CodeBuilder.block(Consumer) or CodeBuilder.ifThenElse(Consumer, Consumer), the current block will be the entire method body.

Specified by:

endLabel in interface CodeBuilder

Returns:

the label associated with the end of the current block

receiverSlot

public int receiverSlot()

Description copied from interface: CodeBuilder

Returns the local variable slot associated with the receiver..

Specified by:

receiverSlot in interface CodeBuilder

Returns:

the local variable slot associated with the receiver

parameterSlot

public int parameterSlot(int paramNo)

Description copied from interface: CodeBuilder

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.

Specified by:

parameterSlot in interface CodeBuilder

Parameters:

paramNo - the index of the parameter

Returns:

the local variable slot associated with the specified parameter

allocateLocal

public int allocateLocal(TypeKind typeKind)

Description copied from interface: CodeBuilder

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 CodeBuilder.block(Consumer), CodeBuilder.ifThen(Consumer), or CodeBuilder.ifThenElse(Consumer, Consumer), at the end of the block, locals are reset to their value at the beginning of the block.

Specified by:

allocateLocal in interface CodeBuilder

Parameters:

typeKind - the type of the local variable

Returns:

the local variable slot of a fresh local variable

constantPool

public ConstantPoolBuilder constantPool()

Description copied from interface: ClassfileBuilder

Returns the constant pool builder associated with this builder.

Specified by:

constantPool in interface ClassfileBuilder<CodeElement,CodeBuilder>

Returns:

the constant pool builder associated with this builder