Package org.mvel2.optimizers.impl.asm

Class ASMAccessorOptimizer

java.lang.Object

org.mvel2.compiler.AbstractParser

org.mvel2.optimizers.AbstractOptimizer

org.mvel2.optimizers.impl.asm.ASMAccessorOptimizer

All Implemented Interfaces:

Serializable, Parser, AccessorOptimizer

public class ASMAccessorOptimizer
extends AbstractOptimizer
implements AccessorOptimizer

Implementation of the MVEL Just-in-Time (JIT) compiler for Property Accessors using the ASM bytecode engineering library.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.mvel2.optimizers.AbstractOptimizer

BEAN, COL, collection, currType, METH, nullSafe, staticAccess, tkStart, WITH

Fields inherited from class org.mvel2.compiler.AbstractParser

CLASS_LITERALS, compileMode, cursor, debugSymbols, dStack, end, expr, fields, GET, GET_OR_CREATE, greedy, lastLineStart, lastNode, lastWasComment, lastWasIdentifier, lastWasLineLabel, lastWasVar, length, LEVEL_0_PROPERTY_ONLY, LEVEL_1_BASIC_LANG, LEVEL_2_MULTI_STATEMENT, LEVEL_3_ITERATION, LEVEL_4_ASSIGNMENT, LEVEL_5_CONTROL_FLOW, line, literalOnly, LITERALS, OP_CONTINUE, OP_NOT_LITERAL, OP_OVERFLOW, OP_RESET_FRAME, OP_TERMINATE, OPERATORS, pCtx, REMOVE, SET, splitAccumulator, st, start, stk

Constructor Summary

Constructors

Constructor	Description
ASMAccessorOptimizer()

Method Summary

Modifier and Type	Method	Description
void	arrayStore(Class cls)
Class	getEgressType()
static MVELClassLoader	getMVELClassLoader()
String	getName()
Object	getResultOptPass()
void	init()
boolean	isLiteralOnly()
Accessor	optimizeAccessor(ParserContext pCtx, char[] property, int start, int offset, Object staticContext, Object thisRef, VariableResolverFactory factory, boolean root, Class ingressType)
Accessor	optimizeCollection(ParserContext pCtx, Object o, Class type, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory)
Accessor	optimizeObjectCreation(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory)
Accessor	optimizeSetAccessor(ParserContext pCtx, char[] property, int start, int offset, Object ctx, Object thisRef, VariableResolverFactory factory, boolean rootThisRef, Object value, Class ingressType)
static void	setMVELClassLoader(MVELClassLoader cl)
static int	toPrimitiveTypeOperand(Class<?> c)	Gets the ASM instruction operand for the given primitive type.
void	wrapRuntimeConverstion(Class toType)

Methods inherited from class org.mvel2.optimizers.AbstractOptimizer

capture, findLastUnion, nextSubToken, scanTo, tryStaticAccess, whiteSpaceSkip

Methods inherited from class org.mvel2.compiler.AbstractParser

addFatalError, addFatalError, arithmeticFunctionReduction, captureIdentifier, captureToEOS, captureToEOSorEOL, captureToEOT, captureToNextTokenJunction, expectEOS, expectNextChar_IW, getCursor, getExpression, handleSubstatement, handleUnion, ifThenElseBlockContinues, incNextNonBlank, isArithmeticOperator, isNextIdentifier, isNextIdentifierOrLiteral, isStatementNotManuallyTerminated, lastNonWhite, loadLanguageFeaturesByLevel, lookAhead, lookAhead, lookBehind, lookToLast, nextNonBlank, nextToken, nextTokenSkipSymbols, reduce, setExpression, setExpression, setLanguageLevel, setupParser, skipWhitespace, tokenContinues, trimLeft, trimRight, trimWhitespace

Methods inherited from class java.lang.Object

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

Constructor Details

ASMAccessorOptimizer

public ASMAccessorOptimizer()

Method Details

optimizeAccessor

public Accessor optimizeAccessor(ParserContext pCtx,
 char[] property,
 int start,
 int offset,
 Object staticContext,
 Object thisRef,
 VariableResolverFactory factory,
 boolean root,
 Class ingressType)

Specified by:

optimizeAccessor in interface AccessorOptimizer

optimizeSetAccessor

public Accessor optimizeSetAccessor(ParserContext pCtx,
 char[] property,
 int start,
 int offset,
 Object ctx,
 Object thisRef,
 VariableResolverFactory factory,
 boolean rootThisRef,
 Object value,
 Class ingressType)

Specified by:

optimizeSetAccessor in interface AccessorOptimizer

setMVELClassLoader

public static void setMVELClassLoader(MVELClassLoader cl)

getMVELClassLoader

public static MVELClassLoader getMVELClassLoader()

init

public void init()

Specified by:

init in interface AccessorOptimizer

getName

public String getName()

getResultOptPass

public Object getResultOptPass()

Specified by:

getResultOptPass in interface AccessorOptimizer

toPrimitiveTypeOperand

public static int toPrimitiveTypeOperand(Class<?> c)

Gets the ASM instruction operand for the given primitive type. Will throw IllegalStateException if the type is not primitive.

Parameters:

c - The class representing the primitive type.

Returns:

The operand

arrayStore

public void arrayStore(Class cls)

wrapRuntimeConverstion

public void wrapRuntimeConverstion(Class toType)

optimizeCollection

public Accessor optimizeCollection(ParserContext pCtx,
 Object o,
 Class type,
 char[] property,
 int start,
 int offset,
 Object ctx,
 Object thisRef,
 VariableResolverFactory factory)

Specified by:

optimizeCollection in interface AccessorOptimizer

optimizeObjectCreation

public Accessor optimizeObjectCreation(ParserContext pCtx,
 char[] property,
 int start,
 int offset,
 Object ctx,
 Object thisRef,
 VariableResolverFactory factory)

Specified by:

optimizeObjectCreation in interface AccessorOptimizer

getEgressType

public Class getEgressType()

Specified by:

getEgressType in interface AccessorOptimizer

isLiteralOnly

public boolean isLiteralOnly()

Specified by:

isLiteralOnly in interface AccessorOptimizer