Class ExpressionCompiler

java.lang.Object

org.mvel2.compiler.AbstractParser

org.mvel2.compiler.ExpressionCompiler

All Implemented Interfaces:

Serializable, Parser

public class ExpressionCompiler
extends AbstractParser

This is the main MVEL compiler.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Class	returnType
private boolean	secondPassOptimization
private boolean	verifying
private boolean	verifyOnly

Fields inherited from class AbstractParser

CLASS_LITERALS, compileMode, ctx, cursor, debugSymbols, dStack, end, expr, fields, GET, GET_OR_CREATE, greedy, lastLineStart, lastNode, lastWasComment, lastWasIdentifier, lastWasLineLabel, 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, variableFactory

Constructor Summary

Constructors

Constructor	Description
ExpressionCompiler(char[] expression)
ExpressionCompiler(char[] expression, int start, int offset)
ExpressionCompiler(char[] expression, int start, int offset, ParserContext ctx)
ExpressionCompiler(char[] expression, ParserContext ctx)
ExpressionCompiler(String expression)
ExpressionCompiler(String expression, boolean verifying)
ExpressionCompiler(String expression, int start, int offset, ParserContext ctx)
ExpressionCompiler(String expression, ParserContext ctx)

Method Summary

Modifier and Type	Method	Description
CompiledExpression	_compile()	Initiate an in-context compileShared.
CompiledExpression	compile()
private boolean	compileReduce(int opCode, ASTLinkedList astBuild)
ParserContext	getParserContextState()
Class	getReturnType()
private Object	getStackValueResult()
private static boolean	isBooleanOperator(int operator)
boolean	isLiteralOnly()
boolean	isVerifying()
boolean	isVerifyOnly()
void	setReturnType(Class returnType)
void	setVerifying(boolean verifying)
void	setVerifyOnly(boolean verifyOnly)
protected ASTNode	verify(ParserContext pCtx, ASTNode tk)

Methods inherited from class 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 Object

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

Field Details

returnType

private Class returnType

verifyOnly

private boolean verifyOnly

verifying

private boolean verifying

secondPassOptimization

private boolean secondPassOptimization

Constructor Details

ExpressionCompiler

public ExpressionCompiler(String expression)

ExpressionCompiler

public ExpressionCompiler(String expression,
 boolean verifying)

ExpressionCompiler

public ExpressionCompiler(char[] expression)

ExpressionCompiler

public ExpressionCompiler(String expression,
 ParserContext ctx)

ExpressionCompiler

public ExpressionCompiler(char[] expression,
 int start,
 int offset)

ExpressionCompiler

public ExpressionCompiler(String expression,
 int start,
 int offset,
 ParserContext ctx)

ExpressionCompiler

public ExpressionCompiler(char[] expression,
 int start,
 int offset,
 ParserContext ctx)

ExpressionCompiler

public ExpressionCompiler(char[] expression,
 ParserContext ctx)

Method Details

compile

public CompiledExpression compile()

_compile

public CompiledExpression _compile()

Initiate an in-context compileShared. This method should really only be called by the internal API.

Returns:

compiled expression object

getStackValueResult

private Object getStackValueResult()

compileReduce

private boolean compileReduce(int opCode,
 ASTLinkedList astBuild)

isBooleanOperator

private static boolean isBooleanOperator(int operator)

verify

protected ASTNode verify(ParserContext pCtx,
 ASTNode tk)

isVerifying

public boolean isVerifying()

setVerifying

public void setVerifying(boolean verifying)

isVerifyOnly

public boolean isVerifyOnly()

setVerifyOnly

public void setVerifyOnly(boolean verifyOnly)

getReturnType

public Class getReturnType()

setReturnType

public void setReturnType(Class returnType)

getParserContextState

public ParserContext getParserContextState()

isLiteralOnly

public boolean isLiteralOnly()