InstructionBuilderImpl (Tapestry API

java.lang.Object
- org.apache.tapestry5.internal.plastic.Lockable
- - org.apache.tapestry5.internal.plastic.InstructionBuilderImpl

All Implemented Interfaces:: org.apache.tapestry5.internal.plastic.asm.Opcodes, InstructionBuilder

public class InstructionBuilderImpl
extends Lockable
implements org.apache.tapestry5.internal.plastic.asm.Opcodes, InstructionBuilder

Field Summary

Fields
Modifier and Type Field and Description

protected NameCache cache

protected InstructionBuilderState state

protected org.apache.tapestry5.internal.plastic.asm.MethodVisitor v
- Fields inherited from interface org.apache.tapestry5.internal.plastic.asm.Opcodes
  AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9_EXPERIMENTAL, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, 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, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V9

Fields
Modifier and Type	Field and Description
`protected NameCache`	`cache`
`protected InstructionBuilderState`	`state`
`protected org.apache.tapestry5.internal.plastic.asm.MethodVisitor`	`v`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`InstructionBuilder`	`arrayLength()` Expects the top object on the stack to be an array.
`InstructionBuilder`	`boxPrimitive(String typeName)` If the type name is a primitive type, adds code to box the type into the equivalent wrapper type, using static methods on the wrapper type.
`InstructionBuilder`	`castOrUnbox(String typeName)` Casts the object on top of the stack to the indicated type.
`InstructionBuilder`	`checkcast(Class clazz)`
`InstructionBuilder`	`checkcast(String className)` Adds a check that the object on top of the stack is assignable to the indicated class.
`InstructionBuilder`	`compareSpecial(String typeName)` Special comparison logic for primitive float, double and long.
`InstructionBuilder`	`doWhile(Condition condition, WhileCallback callback)` Implements a simple loop based on a condition.
`InstructionBuilder`	`dupe()` Duplicates the top object on the stack.
`InstructionBuilder`	`dupe(int depth)` Duplicates the top object on the stack, placing the result at some depth.
`InstructionBuilder`	`dupeWide()` Duplicates a wide value (a primitive long or double).
`InstructionBuilder`	`getField(PlasticField field)` Loads an instance or static field onto the stack.
`InstructionBuilder`	`getField(String className, String fieldName, Class fieldType)` Loads a field onto the stack.
`InstructionBuilder`	`getField(String className, String fieldName, String typeName)` Loads an instance field onto the stack.
`InstructionBuilder`	`getStaticField(String className, String fieldName, Class fieldType)` Gets a static field; does not consume a value from the stack, but pushes the fields' value onto the stack.
`InstructionBuilder`	`getStaticField(String className, String fieldName, String typeName)` Gets a static field; does not consume a value from the stack, but pushes the fields' value onto the stack.
`InstructionBuilder`	`increment(LocalVariable variable)` Increments a local integer variable.
`InstructionBuilder`	`invoke(Class clazz, Class returnType, String methodName, Class... argumentTypes)` Automatically invokes an interface or virtual method.
`InstructionBuilder`	`invoke(Method method)` Automatically invokes an interface or virtual method.
`InstructionBuilder`	`invokeConstructor(Class clazz, Class... argumentTypes)`
`InstructionBuilder`	`invokeConstructor(String className, String... argumentTypes)` Invokes a constructor on a class.
`InstructionBuilder`	`invokeInterface(String interfaceName, String returnType, String methodName, String... argumentTypes)` Invokes a standard virtual method.
`InstructionBuilder`	`invokeSpecial(String containingClassName, MethodDescription description)` Invokes an instance method of a base class, or a private method of a class, using the target object and parameters already on the stack.
`InstructionBuilder`	`invokeStatic(Class clazz, Class returnType, String methodName, Class... argumentTypes)` Invokes a static method of a class.
`InstructionBuilder`	`invokeVirtual(PlasticMethod method)`
`InstructionBuilder`	`invokeVirtual(String className, String returnType, String methodName, String... argumentTypes)` Invokes a standard virtual method.
`InstructionBuilder`	`iterateArray(InstructionBuilderCallback callback)` Expects an array to be the top value on the stack.
`InstructionBuilder`	`loadArgument(int index)` Loads an argument onto the stack, using the opcode appropriate to the argument's type.
`InstructionBuilder`	`loadArguments()` Loads all arguments for the current method onto the stack; this is used when invoking a method that takes the exact same parameters (often, a super-class implementation).
`InstructionBuilder`	`loadArrayElement()` Loads a value from an array object.
`InstructionBuilder`	`loadArrayElement(int index, String elementType)` Loads a value from an array object, which must be the top element of the stack.
`InstructionBuilder`	`loadConstant(Object constant)` Loads a constant value
`InstructionBuilder`	`loadNull()` Loads the null constant onto the stack.
`InstructionBuilder`	`loadThis()` Loads this onto the stack.
`InstructionBuilder`	`loadTypeConstant(Class clazz)` Loads a Java type (a Class instance) as a constant.
`InstructionBuilder`	`loadTypeConstant(String typeName)` Loads a Java type (a Class instance) as a constant.
`InstructionBuilder`	`loadVariable(LocalVariable var)` Loads a value from a local variable and pushes it onto the stack.
`InstructionBuilder`	`newInstance(Class clazz)` A convenience version of `InstructionBuilder.newInstance(String)` used when the class is known at build time.
`InstructionBuilder`	`newInstance(String className)` Creates a new, uninitialized instance of the indicated class.
`InstructionBuilder`	`pop()` Discards the top value on the stack.
`InstructionBuilder`	`popWide()` Pops a wide value (a primitive long or double).
`InstructionBuilder`	`putField(String className, String fieldName, Class fieldType)`
`InstructionBuilder`	`putField(String className, String fieldName, String typeName)` Expects the stack to contain the instance to update, and the value to store into the field.
`InstructionBuilder`	`putStaticField(String className, String fieldName, Class fieldType)` Sets a static field; the new field value should be on top of the stack.
`InstructionBuilder`	`putStaticField(String className, String fieldName, String typeName)` Sets a static field; the new field value should be on top of the stack.
`InstructionBuilder`	`returnDefaultValue()` Returns the default value for the method, which may be null, or a specific primitive value.
`InstructionBuilder`	`returnResult()` Returns the top value on the stack.
`InstructionBuilder`	`startSwitch(int min, int max, SwitchCallback callback)` Starts a switch statement.
`InstructionBuilder`	`startTryCatch(TryCatchCallback callback)` Defines the start of a block that can have exception handlers and finally blocks applied.
`InstructionBuilder`	`startVariable(String type, LocalVariableCallback callback)` Starts a block where the given name is active.
`InstructionBuilder`	`storeVariable(LocalVariable var)` Stores the value on top of the stack to a local variable (previously defined by `InstructionBuilder.startVariable(String, LocalVariableCallback)`.
`InstructionBuilder`	`swap()` Swaps the top element of the stack with the next element down.
`InstructionBuilder`	`throwException()` Throws the exception on the top of the stack.
`InstructionBuilder`	`throwException(Class<? extends Throwable> exceptionType, String message)`
`InstructionBuilder`	`throwException(String className, String message)` Throws an exception with a fixed message.
`InstructionBuilder`	`unboxPrimitive(String typeName)` Unboxes a wrapper type to a primitive type if typeName is a primitive type name (the value on the stack should be the corresponding wrapper type instance).
`InstructionBuilder`	`when(Condition condition, InstructionBuilderCallback ifTrue)` Simplified version of `InstructionBuilder.when(Condition, WhenCallback)` that simply executes the callback code when the condition is true and does nothing if the condition is false (the more general case).
`InstructionBuilder`	`when(Condition condition, WhenCallback callback)` Executes conditional code based on a `Condition`.

Methods inherited from class org.apache.tapestry5.internal.plastic.Lockable
check, lock

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - state
```
protected final InstructionBuilderState state
```
  - v
```
protected final org.apache.tapestry5.internal.plastic.asm.MethodVisitor v
```
  - cache
```
protected final NameCache cache
```
- Method Detail
  - returnDefaultValue
```
public InstructionBuilder returnDefaultValue()
```
    Description copied from interface: InstructionBuilder
    
    Returns the default value for the method, which may be null, or a specific primitive value.
    
    Specified by:
    
    returnDefaultValue in interface InstructionBuilder
  - loadThis
```
public InstructionBuilder loadThis()
```
    Description copied from interface: InstructionBuilder
    
    Loads this onto the stack.
    
    Specified by:
    
    loadThis in interface InstructionBuilder
  - loadNull
```
public InstructionBuilder loadNull()
```
    Description copied from interface: InstructionBuilder
    
    Loads the null constant onto the stack.
    
    Specified by:
    
    loadNull in interface InstructionBuilder
  - loadArgument
```
public InstructionBuilder loadArgument(int index)
```
    Description copied from interface: InstructionBuilder
    
    Loads an argument onto the stack, using the opcode appropriate to the argument's type. In addition this automatically adjusts for arguments of primitive type long or double (which take up two local variable indexes, rather than one as for all other types)
    
    Specified by:
    
    loadArgument in interface InstructionBuilder
    
    Parameters:
    
    index - to argument (0 is the first argument, not this)
  - loadArguments
```
public InstructionBuilder loadArguments()
```
    Description copied from interface: InstructionBuilder
    
    Loads all arguments for the current method onto the stack; this is used when invoking a method that takes the exact same parameters (often, a super-class implementation). A call to InstructionBuilder.loadThis() (or some other way of identifying the target method) should precede this call.
    
    Specified by:
    
    loadArguments in interface InstructionBuilder
  - invokeSpecial
```
public InstructionBuilder invokeSpecial(String containingClassName,
                                        MethodDescription description)
```
    Description copied from interface: InstructionBuilder
    
    Invokes an instance method of a base class, or a private method of a class, using the target object and parameters already on the stack. Leaves the result on the stack (unless its a void method).
    
    Specified by:
    
    invokeSpecial in interface InstructionBuilder
    
    Parameters:
    
    containingClassName - class name containing the method
    
    description - describes the method name, parameters and return type
  - invokeVirtual
```
public InstructionBuilder invokeVirtual(PlasticMethod method)
```
    Specified by:
    
    invokeVirtual in interface InstructionBuilder
  - invokeVirtual
```
public InstructionBuilder invokeVirtual(String className,
                                        String returnType,
                                        String methodName,
                                        String... argumentTypes)
```
    Description copied from interface: InstructionBuilder
    
    Invokes a standard virtual method.
    
    Specified by:
    
    invokeVirtual in interface InstructionBuilder
  - invokeInterface
```
public InstructionBuilder invokeInterface(String interfaceName,
                                          String returnType,
                                          String methodName,
                                          String... argumentTypes)
```
    Description copied from interface: InstructionBuilder
    
    Invokes a standard virtual method.
    
    Specified by:
    
    invokeInterface in interface InstructionBuilder
  - invokeStatic
```
public InstructionBuilder invokeStatic(Class clazz,
                                       Class returnType,
                                       String methodName,
                                       Class... argumentTypes)
```
    Description copied from interface: InstructionBuilder
    
    Invokes a static method of a class.
    
    Specified by:
    
    invokeStatic in interface InstructionBuilder
  - invoke
```
public InstructionBuilder invoke(Method method)
```
    Description copied from interface: InstructionBuilder
    
    Automatically invokes an interface or virtual method. Remember to use InstructionBuilder.invokeConstructor(Class, Class...) for constructors and InstructionBuilder.invokeSpecial(String, MethodDescription) for private methods.
    
    Specified by:
    
    invoke in interface InstructionBuilder
  - invoke
```
public InstructionBuilder invoke(Class clazz,
                                 Class returnType,
                                 String methodName,
                                 Class... argumentTypes)
```
    Description copied from interface: InstructionBuilder
    
    Automatically invokes an interface or virtual method. Remember to use InstructionBuilder.invokeConstructor(Class, Class...) for constructors and InstructionBuilder.invokeSpecial(String, MethodDescription) for private methods.
    
    Specified by:
    
    invoke in interface InstructionBuilder
  - returnResult
```
public InstructionBuilder returnResult()
```
    Description copied from interface: InstructionBuilder
    
    Returns the top value on the stack. For void methods, no value should be on the stack and the method will simply return.
    
    Specified by:
    
    returnResult in interface InstructionBuilder
  - boxPrimitive
```
public InstructionBuilder boxPrimitive(String typeName)
```
    Description copied from interface: InstructionBuilder
    
    If the type name is a primitive type, adds code to box the type into the equivalent wrapper type, using static methods on the wrapper type. Does nothing if the type is not primitive, or type void.
    
    Specified by:
    
    boxPrimitive in interface InstructionBuilder
  - unboxPrimitive
```
public InstructionBuilder unboxPrimitive(String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Unboxes a wrapper type to a primitive type if typeName is a primitive type name (the value on the stack should be the corresponding wrapper type instance). Does nothing for non-primitive types.
    
    Specified by:
    
    unboxPrimitive in interface InstructionBuilder
    
    Parameters:
    
    typeName - possibly primitive type name
  - getField
```
public InstructionBuilder getField(String className,
                                   String fieldName,
                                   String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Loads an instance field onto the stack. The object containing the field should already be loaded onto the stack (usually, via InstructionBuilder.loadThis()).
    
    Specified by:
    
    getField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    typeName - type of field
  - getStaticField
```
public InstructionBuilder getStaticField(String className,
                                         String fieldName,
                                         String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Gets a static field; does not consume a value from the stack, but pushes the fields' value onto the stack.
    
    Specified by:
    
    getStaticField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    typeName - type of field
  - getStaticField
```
public InstructionBuilder getStaticField(String className,
                                         String fieldName,
                                         Class fieldType)
```
    Description copied from interface: InstructionBuilder
    
    Gets a static field; does not consume a value from the stack, but pushes the fields' value onto the stack.
    
    Specified by:
    
    getStaticField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    fieldType - type of field
  - putStaticField
```
public InstructionBuilder putStaticField(String className,
                                         String fieldName,
                                         Class fieldType)
```
    Description copied from interface: InstructionBuilder
    
    Sets a static field; the new field value should be on top of the stack.
    
    Specified by:
    
    putStaticField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    fieldType - type of field
  - putStaticField
```
public InstructionBuilder putStaticField(String className,
                                         String fieldName,
                                         String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Sets a static field; the new field value should be on top of the stack.
    
    Specified by:
    
    putStaticField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    typeName - type of field
  - getField
```
public InstructionBuilder getField(PlasticField field)
```
    Description copied from interface: InstructionBuilder
    
    Loads an instance or static field onto the stack. The plastic class instance containing the field should already be loaded onto the stack (usually, via InstructionBuilder.loadThis()).
    
    Specified by:
    
    getField in interface InstructionBuilder
    
    Parameters:
    
    field - identifies name, type and container of field to load
  - putField
```
public InstructionBuilder putField(String className,
                                   String fieldName,
                                   String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Expects the stack to contain the instance to update, and the value to store into the field.
    
    Specified by:
    
    putField in interface InstructionBuilder
  - putField
```
public InstructionBuilder putField(String className,
                                   String fieldName,
                                   Class fieldType)
```
    Specified by:
    
    putField in interface InstructionBuilder
  - getField
```
public InstructionBuilder getField(String className,
                                   String fieldName,
                                   Class fieldType)
```
    Description copied from interface: InstructionBuilder
    
    Loads a field onto the stack. This version is used when the field type is known at build time, rather than discovered at runtime.
    
    Specified by:
    
    getField in interface InstructionBuilder
    
    Parameters:
    
    className - name of class containing the field
    
    fieldName - name of the field
    
    fieldType - type of field
  - loadArrayElement
```
public InstructionBuilder loadArrayElement(int index,
                                           String elementType)
```
    Description copied from interface: InstructionBuilder
    
    Loads a value from an array object, which must be the top element of the stack.
    
    Specified by:
    
    loadArrayElement in interface InstructionBuilder
    
    Parameters:
    
    index - constant index into the array
    
    elementType - the type name of the elements of the array Note: currently only reference types (objects and arrays) are supported, not primitives
  - loadArrayElement
```
public InstructionBuilder loadArrayElement()
```
    Description copied from interface: InstructionBuilder
    
    Loads a value from an array object. The stack should have the array at depth 1, and an array index on top. Only object arrays (not arrays of primitives) are supported.
    
    Specified by:
    
    loadArrayElement in interface InstructionBuilder
  - checkcast
```
public InstructionBuilder checkcast(String className)
```
    Description copied from interface: InstructionBuilder
    
    Adds a check that the object on top of the stack is assignable to the indicated class.
    
    Specified by:
    
    checkcast in interface InstructionBuilder
    
    Parameters:
    
    className - class to cast to
  - checkcast
```
public InstructionBuilder checkcast(Class clazz)
```
    Specified by:
    
    checkcast in interface InstructionBuilder
  - startTryCatch
```
public InstructionBuilder startTryCatch(TryCatchCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Defines the start of a block that can have exception handlers and finally blocks applied. Continue using this InstructionBuilder to define code inside the block, then call methods on the InstructionBlock to define the end of the block and set up handlers.
    
    Specified by:
    
    startTryCatch in interface InstructionBuilder
    
    Parameters:
    
    callback - allows generation of try, catch, and finally clauses
  - newInstance
```
public InstructionBuilder newInstance(String className)
```
    Description copied from interface: InstructionBuilder
    
    Creates a new, uninitialized instance of the indicated class. This should be followed by code to call the new instance's constructor.
    
    Specified by:
    
    newInstance in interface InstructionBuilder
    
    Parameters:
    
    className - of class to instantiate
  - newInstance
```
public InstructionBuilder newInstance(Class clazz)
```
    Description copied from interface: InstructionBuilder
    
    A convenience version of InstructionBuilder.newInstance(String) used when the class is known at build time.
    
    Specified by:
    
    newInstance in interface InstructionBuilder
    
    Parameters:
    
    clazz - to instantiate
  - invokeConstructor
```
public InstructionBuilder invokeConstructor(String className,
                                            String... argumentTypes)
```
    Description copied from interface: InstructionBuilder
    
    Invokes a constructor on a class. The instance should already be on the stack, followed by the right number and type of parameters. Note that a constructor acts like a void method, so you will often follow the sequence: newInstance(), dupe(0), invokeConstructor() so that a reference to the instance is left on the stack.F
    
    Specified by:
    
    invokeConstructor in interface InstructionBuilder
    
    Parameters:
    
    className - the class containing the constructor
    
    argumentTypes - java type names for each argument of the constructor
  - invokeConstructor
```
public InstructionBuilder invokeConstructor(Class clazz,
                                            Class... argumentTypes)
```
    Specified by:
    
    invokeConstructor in interface InstructionBuilder
  - dupe
```
public InstructionBuilder dupe(int depth)
```
    Description copied from interface: InstructionBuilder
    
    Duplicates the top object on the stack, placing the result at some depth.
    
    Specified by:
    
    dupe in interface InstructionBuilder
    
    Parameters:
    
    depth - 0 (DUP), 1 (DUP_X1) or 2 (DUP_X2)
  - dupe
```
public InstructionBuilder dupe()
```
    Description copied from interface: InstructionBuilder
    
    Duplicates the top object on the stack. Commonly used with InstructionBuilder.when(Condition, WhenCallback).
    
    Specified by:
    
    dupe in interface InstructionBuilder
    
    See Also:
    
    InstructionBuilder.dupe(int)
  - pop
```
public InstructionBuilder pop()
```
    Description copied from interface: InstructionBuilder
    
    Discards the top value on the stack. Assumes the value is a single word value: an object reference, or a small primitive) and not a double or long.
    
    Specified by:
    
    pop in interface InstructionBuilder
  - swap
```
public InstructionBuilder swap()
```
    Description copied from interface: InstructionBuilder
    
    Swaps the top element of the stack with the next element down. Note that this can cause problems if the top element on the stack is a long or double.
    
    Specified by:
    
    swap in interface InstructionBuilder
  - loadConstant
```
public InstructionBuilder loadConstant(Object constant)
```
    Description copied from interface: InstructionBuilder
    
    Loads a constant value
    
    Specified by:
    
    loadConstant in interface InstructionBuilder
    
    Parameters:
    
    constant - Integer, Float, Double, Long, String or null
  - loadTypeConstant
```
public InstructionBuilder loadTypeConstant(String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Loads a Java type (a Class instance) as a constant. This assumes the type name is the name of class (or array) but not a primitive type.
    
    Specified by:
    
    loadTypeConstant in interface InstructionBuilder
    
    Parameters:
    
    typeName - Java class name
  - loadTypeConstant
```
public InstructionBuilder loadTypeConstant(Class clazz)
```
    Description copied from interface: InstructionBuilder
    
    Loads a Java type (a Class instance) as a constant. This assumes the type name is the name of class (or array) but not a primitive type.
    
    Specified by:
    
    loadTypeConstant in interface InstructionBuilder
    
    Parameters:
    
    clazz - Java type to load as a constant
  - castOrUnbox
```
public InstructionBuilder castOrUnbox(String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Casts the object on top of the stack to the indicated type. For primitive types, casts to the wrapper type and invokes the appropriate unboxing static method call, leaving a primitive type value on the stack.
    
    Specified by:
    
    castOrUnbox in interface InstructionBuilder
    
    Parameters:
    
    typeName - to cast or unbox to
  - throwException
```
public InstructionBuilder throwException(String className,
                                         String message)
```
    Description copied from interface: InstructionBuilder
    
    Throws an exception with a fixed message. Assumes the exception class includes a constructor that takes a single string.
    
    Specified by:
    
    throwException in interface InstructionBuilder
    
    Parameters:
    
    className - name of exception class to instantiate
    
    message - message (passed as first and only parameter to constructor)
  - throwException
```
public InstructionBuilder throwException(Class<? extends Throwable> exceptionType,
                                         String message)
```
    Specified by:
    
    throwException in interface InstructionBuilder
  - throwException
```
public InstructionBuilder throwException()
```
    Description copied from interface: InstructionBuilder
    
    Throws the exception on the top of the stack.
    
    Specified by:
    
    throwException in interface InstructionBuilder
  - startSwitch
```
public InstructionBuilder startSwitch(int min,
                                      int max,
                                      SwitchCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Starts a switch statement.
    
    Specified by:
    
    startSwitch in interface InstructionBuilder
    
    Parameters:
    
    min - the minimum value to match against
    
    max - the maximum value to match against
  - startVariable
```
public InstructionBuilder startVariable(String type,
                                        LocalVariableCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Starts a block where the given name is active.
    
    Specified by:
    
    startVariable in interface InstructionBuilder
    
    Parameters:
    
    type - type of local variable
    
    callback - generates code used when variable is in effect
  - storeVariable
```
public InstructionBuilder storeVariable(LocalVariable var)
```
    Description copied from interface: InstructionBuilder
    
    Stores the value on top of the stack to a local variable (previously defined by InstructionBuilder.startVariable(String, LocalVariableCallback).
    
    Specified by:
    
    storeVariable in interface InstructionBuilder
  - loadVariable
```
public InstructionBuilder loadVariable(LocalVariable var)
```
    Description copied from interface: InstructionBuilder
    
    Loads a value from a local variable and pushes it onto the stack. The variable is defined by InstructionBuilder.startVariable(String, LocalVariableCallback).
    
    Specified by:
    
    loadVariable in interface InstructionBuilder
  - when
```
public InstructionBuilder when(Condition condition,
                               InstructionBuilderCallback ifTrue)
```
    Description copied from interface: InstructionBuilder
    
    Simplified version of InstructionBuilder.when(Condition, WhenCallback) that simply executes the callback code when the condition is true and does nothing if the condition is false (the more general case). The testing opcodes all pop the value off the stack, so this is usually preceded by dupe(0).
    
    Specified by:
    
    when in interface InstructionBuilder
    
    Parameters:
    
    condition - to evaluate
    
    ifTrue - generates code for when condition is true
    
    Returns:
    
    this builder
  - when
```
public InstructionBuilder when(Condition condition,
                               WhenCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Executes conditional code based on a Condition. The testing opcodes all pop the value off the stack, so this is usually preceded by dupe(0).
    
    Specified by:
    
    when in interface InstructionBuilder
    
    Parameters:
    
    condition - defines true and false cases
    
    callback - provides code for true and false blocks
    
    Returns:
    
    this builder
  - doWhile
```
public InstructionBuilder doWhile(Condition condition,
                                  WhileCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Implements a simple loop based on a condition. First the WhileCallback.buildTest(InstructionBuilder) code is executed, then the condition is evaluated (which will consume at least the top value on the stack). When the condition is false, the loop is exited. When the condition is true, the code defined by WhileCallback.buildBody(InstructionBuilder) is executed, and then a GOTO back to the test code.
    
    Specified by:
    
    doWhile in interface InstructionBuilder
    
    Returns:
    
    this builder
  - increment
```
public InstructionBuilder increment(LocalVariable variable)
```
    Description copied from interface: InstructionBuilder
    
    Increments a local integer variable.
    
    Specified by:
    
    increment in interface InstructionBuilder
    
    Returns:
    
    this builder
  - arrayLength
```
public InstructionBuilder arrayLength()
```
    Description copied from interface: InstructionBuilder
    
    Expects the top object on the stack to be an array. Replaces it with the length of that array.
    
    Specified by:
    
    arrayLength in interface InstructionBuilder
  - iterateArray
```
public InstructionBuilder iterateArray(InstructionBuilderCallback callback)
```
    Description copied from interface: InstructionBuilder
    
    Expects an array to be the top value on the stack. Iterates the array. The callback generates code that will have each successive value from the array as the top value on the stack. Creates a variable to store the loop index.
    
    Specified by:
    
    iterateArray in interface InstructionBuilder
    
    Parameters:
    
    callback - to invoke. The element will be the top value on the stack. The callback is responsible for removing it from the stack.
    
    Returns:
    
    this builder
  - dupeWide
```
public InstructionBuilder dupeWide()
```
    Description copied from interface: InstructionBuilder
    
    Duplicates a wide value (a primitive long or double).
    
    Specified by:
    
    dupeWide in interface InstructionBuilder
  - popWide
```
public InstructionBuilder popWide()
```
    Description copied from interface: InstructionBuilder
    
    Pops a wide value (a primitive long or double).
    
    Specified by:
    
    popWide in interface InstructionBuilder
  - compareSpecial
```
public InstructionBuilder compareSpecial(String typeName)
```
    Description copied from interface: InstructionBuilder
    
    Special comparison logic for primitive float, double and long. Expect two matching wide values on the stack. Reduces the two wide values to a single int value: -1, 0, or 1 depending on whether the deeper value is less than, equal to, or greater than the top value on the stack.
    
    Specified by:
    
    compareSpecial in interface InstructionBuilder

Class InstructionBuilderImpl

Field Summary

Fields inherited from interface org.apache.tapestry5.internal.plastic.asm.Opcodes

Method Summary

Methods inherited from class org.apache.tapestry5.internal.plastic.Lockable

Methods inherited from class java.lang.Object

Field Detail

state

v

cache

Method Detail

returnDefaultValue

loadThis

loadNull

loadArgument

loadArguments

invokeSpecial

invokeVirtual

invokeVirtual

invokeInterface

invokeStatic

invoke

invoke

returnResult

boxPrimitive

unboxPrimitive

getField

getStaticField

getStaticField

putStaticField

putStaticField

getField

putField

putField

getField

loadArrayElement

loadArrayElement

checkcast

checkcast

startTryCatch

newInstance

newInstance

invokeConstructor

invokeConstructor

dupe

dupe

pop

swap

loadConstant

loadTypeConstant

loadTypeConstant

castOrUnbox

throwException

throwException

throwException

startSwitch

startVariable

storeVariable

loadVariable

when

when

doWhile

increment

arrayLength

iterateArray

dupeWide

popWide

compareSpecial