Package org.glassfish.pfl.dynamic.codegen.impl

Class EmitterFactory

java.lang.Object

org.glassfish.pfl.dynamic.codegen.impl.EmitterFactory

public final class EmitterFactory
extends java.lang.Object

This class provides methods that allow the construction of an object that can later be used to emit a bytecode. This is useful when multiple visitors are needed for first preparing an AST, then generating the bytecode.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EmitterFactory.CompoundEmitter
static interface	EmitterFactory.Emitter	Simple wrapper class around a UnaryVoidFunction.
private static class	EmitterFactory.FieldInsnEmitter
private static class	EmitterFactory.IntOperandEmitter
static class	EmitterFactory.NullEmitter
static class	EmitterFactory.SimpleEmitter

Field Summary

Fields

Modifier and Type	Field	Description
private static EmitterFactory.Emitter	arrayLength
private static EmitterFactory.Emitter	arrayLoad
private static EmitterFactory.Emitter	arrayStore
private static int	MAX_OPCODE
private static java.lang.String[]	opcodeNames
private static java.util.BitSet	specialOpcodeSet
private static java.util.BitSet	validOpcodeSet
private static java.util.BitSet	visitFieldInsnSet
private static java.util.BitSet	visitInsnSet
private static java.util.BitSet	visitIntInsnSet
private static java.util.BitSet	visitJumpInsnSet
private static java.util.BitSet	visitMethodInsnSet
private static java.util.BitSet	visitTypeInsnSet
private static java.util.BitSet	visitVarInsnSet

Constructor Summary

Constructors

Modifier	Constructor	Description
private	EmitterFactory()

Method Summary

Modifier and Type	Method	Description
private static void	check(java.util.BitSet validOps, int op)
private static int	getVarInsnOpcode(Type type, boolean isStore)
private static java.util.BitSet	makeBitSet(int... args)
static EmitterFactory.Emitter	makeEmitter(ExpressionFactory.ArrayIndexExpression expr, boolean isStore)	Create an emitter that generates the instruction needed to either store the TOS value into an array (aastore) (isStore==true) or push the array element's value onto the stack (aaload) (isStore==false).
static EmitterFactory.Emitter	makeEmitter(ExpressionFactory.ArrayLengthExpression expr)
static EmitterFactory.Emitter	makeEmitter(ExpressionFactory.NonStaticFieldAccessExpression expr, boolean isStore)	Create an emitter that generates the instruction needed to either store the TOS value into the non-static field (isStore==true) or push the non-static fields's value onto the stack (isStore==false).
static EmitterFactory.Emitter	makeEmitter(ExpressionFactory.StaticFieldAccessExpression expr, boolean isStore)	Create an emitter that generates the instruction needed to either store the TOS value into the static field (isStore==true) or push the static fields's value onto the stack (isStore==false).
static EmitterFactory.Emitter	makeEmitter(Variable var, boolean isStore)	Create an emitter that generates the instruction needed to either store the TOS value into the variable (isStore==true) or push the variable's value onto the stack (isStore==false).
private static EmitterFactory.Emitter	makeFieldInsnEmitter(boolean isStore, boolean isStatic, Type targetType, java.lang.String name, Type varType)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_OPCODE

private static final int MAX_OPCODE

See Also:

Constant Field Values

opcodeNames

private static java.lang.String[] opcodeNames

visitInsnSet

private static java.util.BitSet visitInsnSet

visitIntInsnSet

private static java.util.BitSet visitIntInsnSet

visitVarInsnSet

private static java.util.BitSet visitVarInsnSet

visitFieldInsnSet

private static java.util.BitSet visitFieldInsnSet

visitMethodInsnSet

private static java.util.BitSet visitMethodInsnSet

visitTypeInsnSet

private static java.util.BitSet visitTypeInsnSet

visitJumpInsnSet

private static java.util.BitSet visitJumpInsnSet

specialOpcodeSet

private static java.util.BitSet specialOpcodeSet

validOpcodeSet

private static java.util.BitSet validOpcodeSet

arrayStore

private static final EmitterFactory.Emitter arrayStore

arrayLoad

private static final EmitterFactory.Emitter arrayLoad

arrayLength

private static final EmitterFactory.Emitter arrayLength

Constructor Detail

EmitterFactory

private EmitterFactory()

Method Detail

makeBitSet

private static java.util.BitSet makeBitSet(int... args)

check

private static void check(java.util.BitSet validOps,
                          int op)

getVarInsnOpcode

private static int getVarInsnOpcode(Type type,
                                    boolean isStore)

makeFieldInsnEmitter

private static EmitterFactory.Emitter makeFieldInsnEmitter(boolean isStore,
                                                           boolean isStatic,
                                                           Type targetType,
                                                           java.lang.String name,
                                                           Type varType)

makeEmitter

public static EmitterFactory.Emitter makeEmitter(Variable var,
                                                 boolean isStore)

Create an emitter that generates the instruction needed to either store the TOS value into the variable (isStore==true) or push the variable's value onto the stack (isStore==false). The stack index must be set on var in the stackFrameSlot attribute.

makeEmitter

public static EmitterFactory.Emitter makeEmitter(ExpressionFactory.NonStaticFieldAccessExpression expr,
                                                 boolean isStore)

Create an emitter that generates the instruction needed to either store the TOS value into the non-static field (isStore==true) or push the non-static fields's value onto the stack (isStore==false).

makeEmitter

public static EmitterFactory.Emitter makeEmitter(ExpressionFactory.StaticFieldAccessExpression expr,
                                                 boolean isStore)

Create an emitter that generates the instruction needed to either store the TOS value into the static field (isStore==true) or push the static fields's value onto the stack (isStore==false).

makeEmitter

public static EmitterFactory.Emitter makeEmitter(ExpressionFactory.ArrayIndexExpression expr,
                                                 boolean isStore)

Create an emitter that generates the instruction needed to either store the TOS value into an array (aastore) (isStore==true) or push the array element's value onto the stack (aaload) (isStore==false). This emitter assumes that arrayref and index are already on the stack, and value is on the stack either before (aastore) or after (aaload) the instruction executes.

makeEmitter

public static EmitterFactory.Emitter makeEmitter(ExpressionFactory.ArrayLengthExpression expr)