org.cojen.classfile
Class CodeBuilder

java.lang.Object
  org.cojen.classfile.AbstractCodeAssembler
      org.cojen.classfile.CodeBuilder

All Implemented Interfaces:

CodeAssembler, CodeBuffer

public class CodeBuilder
extends AbstractCodeAssembler
implements CodeBuffer, CodeAssembler

This class is used as an aid in generating code for a method. It controls the max stack, local variable allocation, labels and bytecode.

Author:

Brian S O'Neill

Field Summary

Fields inherited from interface org.cojen.classfile.CodeAssembler

CONVERT_FP_BITS, CONVERT_FP_NORMAL, CONVERT_FP_RAW_BITS

Constructor Summary

CodeBuilder(MethodInfo info)
Construct a CodeBuilder for the CodeAttr of the given MethodInfo.

CodeBuilder(MethodInfo info, boolean saveLineNumberInfo, boolean saveLocalVariableInfo)
Construct a CodeBuilder for the CodeAttr of the given MethodInfo.

Method Summary

void	arrayLength() Generates code for an arraylength instruction.
void	branch(Location location) Generates code that performs an unconditional branch to the specified location.
void	breakpoint() Generates a breakpoint instruction for use in a debugging environment.
void	checkCast(TypeDesc type) Generates code that performs an object cast operation.
void	convert(TypeDesc fromType, TypeDesc toType) Generates code that converts the value of a primitive type already on the stack.
void	convert(TypeDesc fromType, TypeDesc toType, int fpConvertMode) Generates code that converts the value of a primitive type already on the stack.
Label	createLabel() Creates a label, whose location must be set.
LocalVariable	createLocalVariable(String name, TypeDesc type) Creates a LocalVariable reference from a name and type.
void	dup() Generates code for the dup instruction.
void	dup2() Generates code for the dup2 instruction.
void	dup2X1() Generates code for the dup2_x1 instruction.
void	dup2X2() Generates code for the dup2_x2 instruction.
void	dupX1() Generates code for the dup_x1 instruction.
void	dupX2() Generates code for the dup_x2 instruction.
void	exceptionHandler(Location startLocation, Location endLocation, String catchClassName) Sets up an exception handler located here, the location of the next code to be generated.
byte[]	getByteCodes()
ExceptionHandler[]	getExceptionHandlers()
int	getMaxLocals()
int	getMaxStackDepth()
LocalVariable	getParameter(int index) Returns a specific parameter, whose index lies within 0 to getParameterCount() - 1.
int	getParameterCount() Returns the amount of parameters that are accepted by the method being built, not including any "this" reference.
void	ifComparisonBranch(Location location, String choice) Generates code the performs a conditional branch based on a comparison between two int values on the stack.
void	ifEqualBranch(Location location, boolean choice) Generates code that performs a conditional branch based on the value of two object references on the stack.
void	ifNullBranch(Location location, boolean choice) Generates code that performs a conditional branch based on the value of an object on the stack.
void	ifZeroComparisonBranch(Location location, String choice) Generates code the performs a conditional branch based on a comparison between an int value on the stack and zero.
void	instanceOf(TypeDesc type) Generates code that performs an instanceof operation.
void	integerIncrement(LocalVariable local, int amount) Generates code that increments a local integer variable by a signed constant amount.
void	invokeConstructor(String className, TypeDesc[] params) Generates code to invoke a class constructor in any class.
void	invokeConstructor(TypeDesc[] params) Generates code to invoke a class constructor in this class.
void	invokeConstructor(TypeDesc classDesc, TypeDesc[] params) Generates code to invoke a class constructor in any class.
void	invokeInterface(String className, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke an interface method in any class.
void	invokeInterface(TypeDesc classDesc, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke an interface method in any class.
void	invokePrivate(String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a private method in this class.
void	invokeStatic(String className, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a static method in any class.
void	invokeStatic(String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a static method in this class.
void	invokeStatic(TypeDesc classDesc, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a static method in any class.
void	invokeSuper(String superClassName, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a method in the super class.
void	invokeSuper(TypeDesc superClassDesc, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a method in the super class.
void	invokeSuperConstructor(TypeDesc[] params) Generates code to invoke a super class constructor.
void	invokeVirtual(String className, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a virtual method in any class.
void	invokeVirtual(String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a virtual method in this class.
void	invokeVirtual(TypeDesc classDesc, String methodName, TypeDesc ret, TypeDesc[] params) Generates code to invoke a virtual method in any class.
void	jsr(Location location) Generates code that performs a subroutine branch to the specified location.
void	loadConstant(boolean value) Generates code that loads a constant boolean value onto the stack.
void	loadConstant(double value) Generates code that loads a constant double value onto the stack.
void	loadConstant(float value) Generates code that loads a constant float value onto the stack.
void	loadConstant(int value) Generates code that loads a constant int, char, short or byte value onto the stack.
void	loadConstant(long value) Generates code that loads a constant long value onto the stack.
void	loadConstant(String value) Generates code that loads a constant string value onto the stack.
void	loadConstant(TypeDesc type) Generates code that loads a constant class value onto the stack.
void	loadField(String className, String fieldName, TypeDesc type) Generates code that loads a value from a field from any class.
void	loadField(String fieldName, TypeDesc type) Generates code that loads a value from a field from this class.
void	loadField(TypeDesc classDesc, String fieldName, TypeDesc type) Generates code that loads a value from a field from any class.
void	loadFromArray(TypeDesc type) Generates code that loads a value from an array.
void	loadLocal(LocalVariable local) Generates code that loads a local variable onto the stack.
void	loadNull() Generates code that loads a null reference onto the stack.
void	loadStaticField(String className, String fieldName, TypeDesc type) Generates code that loads a value from a static field from any class.
void	loadStaticField(String fieldName, TypeDesc type) Generates code that loads a value from a static field from this class.
void	loadStaticField(TypeDesc classDesc, String fieldName, TypeDesc type) Generates code that loads a value from a static field from any class.
void	loadThis() Loads a reference to "this" onto the stack.
void	mapLineNumber(int lineNumber) Map the location of the next code to be generated to a line number in source code.
void	math(byte opcode) Generates code for either a unary or binary math operation on one or two values pushed on the stack.
void	monitorEnter() Generates code to enter the monitor on an object loaded on the stack.
void	monitorExit() Generates code to exit the monitor on an object loaded on the stack.
void	newObject(TypeDesc type) Generates code to create a new object.
void	newObject(TypeDesc type, int dimensions) Generates code to create a new array.
void	nop() Generates an instruction that does nothing.
void	pop() Generates code for the pop instruction.
void	pop2() Generates code for the pop2 instruction.
void	ret(LocalVariable local) Generates code that returns from a subroutine invoked by jsr.
void	returnValue(TypeDesc type) Generates code that returns an object or primitive type.
void	returnVoid() Generates code that returns void.
void	storeField(String className, String fieldName, TypeDesc type) Generates code that stores a value into a field from any class.
void	storeField(String fieldName, TypeDesc type) Generates code that stores a value into a field from this class.
void	storeField(TypeDesc classDesc, String fieldName, TypeDesc type) Generates code that stores a value into a field from any class.
void	storeLocal(LocalVariable local) Generates code that pops a value off of the stack into a local variable.
void	storeStaticField(String className, String fieldName, TypeDesc type) Generates code that stores a value into a field from any class.
void	storeStaticField(String fieldName, TypeDesc type) Generates code that stores a value into a field from this class.
void	storeStaticField(TypeDesc classDesc, String fieldName, TypeDesc type) Generates code that stores a value into a field from any class.
void	storeToArray(TypeDesc type) Generates code that stores a value to an array.
void	swap() Generates code for the swap instruction.
void	swap2() Generates code for a swap2 instruction.
void	switchBranch(int[] cases, Location[] locations, Location defaultLocation) Generates code for a switch statement.
void	throwObject() Generates code that throws an exception.

Methods inherited from class org.cojen.classfile.AbstractCodeAssembler

ifComparisonBranch, inline, invoke, invoke, invokeSuper

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cojen.classfile.CodeAssembler

ifComparisonBranch, inline, invoke, invoke, invokeSuper

Constructor Detail

CodeBuilder

public CodeBuilder(MethodInfo info)

Construct a CodeBuilder for the CodeAttr of the given MethodInfo. The CodeBuffer for the CodeAttr is automatically set to this CodeBuilder.

CodeBuilder

public CodeBuilder(MethodInfo info,
                   boolean saveLineNumberInfo,
                   boolean saveLocalVariableInfo)

Construct a CodeBuilder for the CodeAttr of the given MethodInfo. The CodeBuffer for the CodeAttr is automatically set to this CodeBuilder.

Parameters:

saveLineNumberInfo - When set false, all calls to mapLineNumber are ignored. By default, this value is true.

saveLocalVariableInfo - When set true, all local variable usage information is saved in the ClassFile. By default, this value is false.

See Also:

mapLineNumber(int)

Method Detail

getMaxStackDepth

public int getMaxStackDepth()

Specified by:

getMaxStackDepth in interface CodeBuffer

getMaxLocals

public int getMaxLocals()

Specified by:

getMaxLocals in interface CodeBuffer

getByteCodes

public byte[] getByteCodes()

Specified by:

getByteCodes in interface CodeBuffer

getExceptionHandlers

public ExceptionHandler[] getExceptionHandlers()

Specified by:

getExceptionHandlers in interface CodeBuffer

getParameterCount

public int getParameterCount()

Description copied from interface: CodeAssembler

Returns the amount of parameters that are accepted by the method being built, not including any "this" reference.

Specified by:

getParameterCount in interface CodeAssembler

getParameter

public LocalVariable getParameter(int index)

Description copied from interface: CodeAssembler

Returns a specific parameter, whose index lies within 0 to getParameterCount() - 1. The names of the LocalVariables returned by this method are initially set to null. It is encouraged that a name be provided.

Specified by:

getParameter in interface CodeAssembler

createLocalVariable

public LocalVariable createLocalVariable(String name,
                                         TypeDesc type)

Description copied from interface: CodeAssembler

Creates a LocalVariable reference from a name and type. Although name is optional, it is encouraged that a name be provided. Names do not need to be unique.

Specified by:

createLocalVariable in interface CodeAssembler

Parameters:

name - Optional name for the LocalVariable.

type - The type of data that the requested LocalVariable can store.

createLabel

public Label createLabel()

Description copied from interface: CodeAssembler

Creates a label, whose location must be set. To create a label and locate it here, the following example demonstrates how the call to setLocation can be chained:

 CodeBuilder builder;
 ...
 Label label = builder.createLabel().setLocation();
 

Specified by:

createLabel in interface CodeAssembler

See Also:

Label.setLocation()

exceptionHandler

public void exceptionHandler(Location startLocation,
                             Location endLocation,
                             String catchClassName)

Description copied from interface: CodeAssembler

Sets up an exception handler located here, the location of the next code to be generated.

Specified by:

exceptionHandler in interface CodeAssembler

Parameters:

startLocation - Location at the start of the section of code to be wrapped by an exception handler.

endLocation - Location directly after the end of the section of code.

catchClassName - The class name of exception to be caught; if null, then catch every object.

mapLineNumber

public void mapLineNumber(int lineNumber)

Description copied from interface: CodeAssembler

Map the location of the next code to be generated to a line number in source code. This enables line numbers in a stack trace from the generated code.

Specified by:

mapLineNumber in interface CodeAssembler

loadNull

public void loadNull()

Description copied from interface: CodeAssembler

Generates code that loads a null reference onto the stack.

Specified by:

loadNull in interface CodeAssembler

loadConstant

public void loadConstant(String value)

Description copied from interface: CodeAssembler

Generates code that loads a constant string value onto the stack. If value is null, the generated code loads a null onto the stack. Strings that exceed 65535 UTF encoded bytes in length are loaded by creating a StringBuffer (or a StringBuilder), appending substrings, and then converting it to a String.

Specified by:

loadConstant in interface CodeAssembler

loadConstant

public void loadConstant(TypeDesc type)
                  throws IllegalStateException

Description copied from interface: CodeAssembler

Generates code that loads a constant class value onto the stack. If value is null, the generated code loads a null onto the stack.

Specified by:

loadConstant in interface CodeAssembler

Parameters:

type - any object or primitive type

Throws:

IllegalStateException - if class file target version does not support this feature

loadConstant

public void loadConstant(boolean value)

Description copied from interface: CodeAssembler

Generates code that loads a constant boolean value onto the stack.

Specified by:

loadConstant in interface CodeAssembler

loadConstant

public void loadConstant(int value)

Description copied from interface: CodeAssembler

Generates code that loads a constant int, char, short or byte value onto the stack.

Specified by:

loadConstant in interface CodeAssembler

loadConstant

public void loadConstant(long value)

Description copied from interface: CodeAssembler

Generates code that loads a constant long value onto the stack.

Specified by:

loadConstant in interface CodeAssembler

loadConstant

public void loadConstant(float value)

Description copied from interface: CodeAssembler

Generates code that loads a constant float value onto the stack.

Specified by:

loadConstant in interface CodeAssembler

loadConstant

public void loadConstant(double value)

Description copied from interface: CodeAssembler

Generates code that loads a constant double value onto the stack.

Specified by:

loadConstant in interface CodeAssembler

loadLocal

public void loadLocal(LocalVariable local)

Description copied from interface: CodeAssembler

Generates code that loads a local variable onto the stack. Parameters passed to a method and the "this" reference are all considered local variables, as well as any that were created.

Specified by:

loadLocal in interface CodeAssembler

Parameters:

local - The local variable reference

loadThis

public void loadThis()

Description copied from interface: CodeAssembler

Loads a reference to "this" onto the stack. Static methods have no "this" reference, and an exception is thrown when attempting to generate "this" in a static method.

Specified by:

loadThis in interface CodeAssembler

storeLocal

public void storeLocal(LocalVariable local)

Description copied from interface: CodeAssembler

Generates code that pops a value off of the stack into a local variable. Parameters passed to a method and the "this" reference are all considered local variables, as well as any that were created.

Specified by:

storeLocal in interface CodeAssembler

Parameters:

local - The local variable reference

See Also:

CodeAssembler.getParameter(int), CodeAssembler.createLocalVariable(java.lang.String, org.cojen.classfile.TypeDesc)

loadFromArray

public void loadFromArray(TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from an array. An array reference followed by an index must be on the stack. The array reference and index are replaced by the value retrieved from the array after the generated instruction has executed.

The type doesn't need to be an exact match for objects. TypeDesc.OBJECT works fine for all objects. For primitive types, use the appropriate TypeDesc. For an int, the type is TypeDesc.INT.

Specified by:

loadFromArray in interface CodeAssembler

Parameters:

type - The type of data stored in the array.

storeToArray

public void storeToArray(TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value to an array. An array reference followed by an index, followed by a value (or two if a long or double) must be on the stack. All items on the stack are gone after the generated instruction has executed.

The type doesn't need to be an exact match for objects. TypeDesc.OBJECT works fine for all objects. For primitive types, use the appropriate TypeDesc. For an int, the type is TypeDesc.INT.

Specified by:

storeToArray in interface CodeAssembler

Parameters:

type - The type of data stored in the array.

loadField

public void loadField(String fieldName,
                      TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a field from this class. An object reference must be on the stack. After the generated code has executed, the object reference is replaced by the value retrieved from the field.

Specified by:

loadField in interface CodeAssembler

loadField

public void loadField(String className,
                      String fieldName,
                      TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a field from any class. An object reference must be on the stack. After the generated code has executed, the object reference is replaced by the value retrieved from the field.

Specified by:

loadField in interface CodeAssembler

loadField

public void loadField(TypeDesc classDesc,
                      String fieldName,
                      TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a field from any class. An object reference must be on the stack. After the generated code has executed, the object reference is replaced by the value retrieved from the field.

Specified by:

loadField in interface CodeAssembler

loadStaticField

public void loadStaticField(String fieldName,
                            TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a static field from this class. After the generated code has executed, the value retrieved is placed on the stack.

Specified by:

loadStaticField in interface CodeAssembler

loadStaticField

public void loadStaticField(String className,
                            String fieldName,
                            TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a static field from any class. After the generated code has executed, the value retrieved is placed on the stack.

Specified by:

loadStaticField in interface CodeAssembler

loadStaticField

public void loadStaticField(TypeDesc classDesc,
                            String fieldName,
                            TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that loads a value from a static field from any class. After the generated code has executed, the value retrieved is placed on the stack.

Specified by:

loadStaticField in interface CodeAssembler

storeField

public void storeField(String fieldName,
                       TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from this class. An object reference and value must be on the stack. After the generated code has executed, the object reference and value are gone from the stack.

Specified by:

storeField in interface CodeAssembler

storeField

public void storeField(String className,
                       String fieldName,
                       TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from any class. An object reference and value must be on the stack. After the generated code has executed, the object reference and value are gone from the stack.

Specified by:

storeField in interface CodeAssembler

storeField

public void storeField(TypeDesc classDesc,
                       String fieldName,
                       TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from any class. An object reference and value must be on the stack. After the generated code has executed, the object reference and value are gone from the stack.

Specified by:

storeField in interface CodeAssembler

storeStaticField

public void storeStaticField(String fieldName,
                             TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from this class. A value must be on the stack. After the generated code has executed, the value is gone from the stack.

Specified by:

storeStaticField in interface CodeAssembler

storeStaticField

public void storeStaticField(String className,
                             String fieldName,
                             TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from any class. A value must be on the stack. After the generated code has executed, the value is gone from the stack.

Specified by:

storeStaticField in interface CodeAssembler

storeStaticField

public void storeStaticField(TypeDesc classDesc,
                             String fieldName,
                             TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that stores a value into a field from any class. A value must be on the stack. After the generated code has executed, the value is gone from the stack.

Specified by:

storeStaticField in interface CodeAssembler

returnVoid

public void returnVoid()

Description copied from interface: CodeAssembler

Generates code that returns void.

Specified by:

returnVoid in interface CodeAssembler

returnValue

public void returnValue(TypeDesc type)

Description copied from interface: CodeAssembler

Generates code that returns an object or primitive type. The value to return must be on the stack.

The type doesn't need to be an exact match for objects. TypeDesc.OBJECT works fine for all objects. For primitive types, use the appropriate TypeDesc. For an int, the type is TypeDesc.INT.

Specified by:

returnValue in interface CodeAssembler

convert

public void convert(TypeDesc fromType,
                    TypeDesc toType)

Description copied from interface: CodeAssembler

Generates code that converts the value of a primitive type already on the stack. Conversions between all primitive types are supported as well as boxing and unboxing conversions. Some example conversions:

 int to char
 byte to double
 Double to double
 Float to boolean
 long to Long
 Double to Short
 

In all, 240 conversions are supported.

Specified by:

convert in interface CodeAssembler

convert

public void convert(TypeDesc fromType,
                    TypeDesc toType,
                    int fpConvertMode)

Description copied from interface: CodeAssembler

Generates code that converts the value of a primitive type already on the stack. Conversions between all primitive types are supported as well as boxing and unboxing conversions. Some example conversions:

 int to char
 byte to double
 Double to double
 Float to boolean
 long to Long
 Double to Short
 

In all, 240 conversions are supported.

Specified by:

convert in interface CodeAssembler

fpConvertMode - controls floating point conversion if converting float <--> int or double <--> long

invokeVirtual

public void invokeVirtual(String methodName,
                          TypeDesc ret,
                          TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a virtual method in this class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeVirtual in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeVirtual

public void invokeVirtual(String className,
                          String methodName,
                          TypeDesc ret,
                          TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a virtual method in any class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeVirtual in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeVirtual

public void invokeVirtual(TypeDesc classDesc,
                          String methodName,
                          TypeDesc ret,
                          TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a virtual method in any class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeVirtual in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeStatic

public void invokeStatic(String methodName,
                         TypeDesc ret,
                         TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a static method in this class. The method's argument(s) must be on the stack.

Specified by:

invokeStatic in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeStatic

public void invokeStatic(String className,
                         String methodName,
                         TypeDesc ret,
                         TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a static method in any class. The method's argument(s) must be on the stack.

Specified by:

invokeStatic in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeStatic

public void invokeStatic(TypeDesc classDesc,
                         String methodName,
                         TypeDesc ret,
                         TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a static method in any class. The method's argument(s) must be on the stack.

Specified by:

invokeStatic in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeInterface

public void invokeInterface(String className,
                            String methodName,
                            TypeDesc ret,
                            TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke an interface method in any class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeInterface in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeInterface

public void invokeInterface(TypeDesc classDesc,
                            String methodName,
                            TypeDesc ret,
                            TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke an interface method in any class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeInterface in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokePrivate

public void invokePrivate(String methodName,
                          TypeDesc ret,
                          TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a private method in this class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokePrivate in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeSuper

public void invokeSuper(String superClassName,
                        String methodName,
                        TypeDesc ret,
                        TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a method in the super class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeSuper in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeSuper

public void invokeSuper(TypeDesc superClassDesc,
                        String methodName,
                        TypeDesc ret,
                        TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a method in the super class. The object reference and the method's argument(s) must be on the stack.

Specified by:

invokeSuper in interface CodeAssembler

ret - May be null if method returns void.

params - May be null if method takes no parameters.

invokeConstructor

public void invokeConstructor(TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a class constructor in this class. The object reference and the constructor's argument(s) must be on the stack.

Specified by:

invokeConstructor in interface CodeAssembler

Parameters:

params - May be null if constructor takes no parameters.

invokeConstructor

public void invokeConstructor(String className,
                              TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a class constructor in any class. The object reference and the constructor's argument(s) must be on the stack.

Specified by:

invokeConstructor in interface CodeAssembler

params - May be null if constructor takes no parameters.

invokeConstructor

public void invokeConstructor(TypeDesc classDesc,
                              TypeDesc[] params)

Description copied from interface: CodeAssembler

Generates code to invoke a class constructor in any class. The object reference and the constructor's argument(s) must be on the stack.

Specified by: