Package org.mvel2.util

Class CompilerTools

java.lang.Object

org.mvel2.util.CompilerTools

public class CompilerTools
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
CompilerTools()

Method Summary

Modifier and Type	Method	Description
private static BinaryOperation	boOptimize(int op, ASTNode tk, ASTNode tk2, ParserContext pCtx)
static void	expectType(ParserContext pCtx, ASTNode node, java.lang.Class type, boolean compileMode)
static void	expectType(ParserContext pCtx, Accessor expression, java.lang.Class type, boolean compileMode)
static Accessor	extractAccessor(ASTNode n)
static java.util.Map<java.lang.String,Function>	extractAllDeclaredFunctions(CompiledExpression compile)	Returns an ordered Map of all functions declared within an compiled script.
static ASTLinkedList	finalizePayload(ASTLinkedList astLinkedList, boolean secondPassOptimization, ParserContext pCtx)	Finalize the payload, by reducing any stack-based-operations to dedicated nodes where possible.
static java.util.Map<java.lang.String,java.lang.Object>	getInjectedImports(VariableResolverFactory factory)
static java.lang.Class	getReturnType(ASTIterator input, boolean strongTyping)
static java.lang.Class	getReturnTypeFromOp(int operation, java.lang.Class left, java.lang.Class right)
private static boolean	isIntOptimizationviolation(BooleanNode bn, ASTNode bn2)
private static boolean	isReductionOpportunity(ASTNode oper, ASTNode node)
private static void	optimizeOperator(int operator, ASTNode tk, ASTNode tkOp, ASTLinkedList astLinkedList, ASTLinkedList optimizedAst, ParserContext pCtx)
private static boolean	reducacbleOperator(int oper)
static java.lang.Number	signNumber(java.lang.Object number)

Methods inherited from class java.lang.Object

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

Constructor Detail

CompilerTools

public CompilerTools()

Method Detail

finalizePayload

public static ASTLinkedList finalizePayload(ASTLinkedList astLinkedList,
                                            boolean secondPassOptimization,
                                            ParserContext pCtx)

Finalize the payload, by reducing any stack-based-operations to dedicated nodes where possible.

Parameters:

astLinkedList - - AST to be optimized.

secondPassOptimization - - perform a second pass optimization to optimize boolean expressions.

pCtx - - The parser context

Returns:

optimized AST

boOptimize

private static BinaryOperation boOptimize(int op,
                                          ASTNode tk,
                                          ASTNode tk2,
                                          ParserContext pCtx)

isReductionOpportunity

private static boolean isReductionOpportunity(ASTNode oper,
                                              ASTNode node)

reducacbleOperator

private static boolean reducacbleOperator(int oper)

optimizeOperator

private static void optimizeOperator(int operator,
                                     ASTNode tk,
                                     ASTNode tkOp,
                                     ASTLinkedList astLinkedList,
                                     ASTLinkedList optimizedAst,
                                     ParserContext pCtx)

isIntOptimizationviolation

private static boolean isIntOptimizationviolation(BooleanNode bn,
                                                  ASTNode bn2)

getReturnType

public static java.lang.Class getReturnType(ASTIterator input,
                                            boolean strongTyping)

extractAllDeclaredFunctions

public static java.util.Map<java.lang.String,Function> extractAllDeclaredFunctions(CompiledExpression compile)

Returns an ordered Map of all functions declared within an compiled script.

Parameters:

compile - compile

Returns:

- ordered Map

expectType

public static void expectType(ParserContext pCtx,
                              Accessor expression,
                              java.lang.Class type,
                              boolean compileMode)

expectType

public static void expectType(ParserContext pCtx,
                              ASTNode node,
                              java.lang.Class type,
                              boolean compileMode)

getReturnTypeFromOp

public static java.lang.Class getReturnTypeFromOp(int operation,
                                                  java.lang.Class left,
                                                  java.lang.Class right)

extractAccessor

public static Accessor extractAccessor(ASTNode n)

getInjectedImports

public static java.util.Map<java.lang.String,java.lang.Object> getInjectedImports(VariableResolverFactory factory)

signNumber

public static java.lang.Number signNumber(java.lang.Object number)