pnuts.ext
Class ImplementationAdapter

java.lang.Object
  pnuts.lang.Runtime
      pnuts.lang.PnutsImpl
          pnuts.ext.ImplementationAdapter

All Implemented Interfaces:

Executable, Implementation

Direct Known Subclasses:

SecurePnutsImpl

public class ImplementationAdapter
extends PnutsImpl

This class is used to customize an existing Implementation.

Nested Class Summary

Nested classes/interfaces inherited from class pnuts.lang.Runtime

Runtime.Accessor, Runtime.Break, Runtime.Continue, Runtime.FunctionSerializer, Runtime.TypeMap

Field Summary

Fields inherited from class pnuts.lang.PnutsImpl

properties

Fields inherited from class pnuts.lang.Runtime

BOOLEAN_SYMBOL, BYTE_SYMBOL, CHAR_SYMBOL, CLONE, DOUBLE_SYMBOL, EXCEPTOIN_FIELD_SYMBOL, FLOAT_SYMBOL, INT_SYMBOL, LONG_SYMBOL, SHORT_SYMBOL, VOID_SYMBOL

Constructor Summary

ImplementationAdapter(Implementation impl)

Method Summary

java.lang.Object	accept(SimpleNode node, Context context) Interpret an AST
java.lang.Object	eval(java.lang.String str, Context context) Evaluate an expreesion
Implementation	getBaseImpl() Returns the base Implementation which was passed to the constructor
java.lang.Object	load(java.lang.String file, Context context) Load a script file using classloader
java.lang.Object	load(java.net.URL scriptURL, Context context) Load a script file from a URL
java.lang.Object	loadFile(java.lang.String filename, Context context) Load a script file from local file system

Methods inherited from class pnuts.lang.PnutsImpl

getDefault, popFile, provide, pushFile, queryProperty, revoke, setProperties, setProperty

Methods inherited from class pnuts.lang.Runtime

_callConstructor, _callMethod, add, add, add1, add1, addImport, addStaticMembers, and, and, applyGenerator, arraydim, arrayType, call, call, callConstructor, callFunction, callMethod, cast, catchException, checkException, checkException, compareObjects, compareTo, compareTo, createList, createMap, defineTopLevelFunction, defineUnboundFunction, divide, divide, eq, eq, escape, exec, execute, fileToURL, findCallableMethod, format, format, ge, ge, getArrayLength, getBeanProperty, getBeanProperty, getBeanProperty, getBeanPropertyType, getBeginColumn, getBeginLine, getBottomType, getCompiledScript, getConstructors, getElement, getElementAt, getEndLine, getField, getField, getFunction, getFunction, getFunctions, getMessage, getMethods, getProperty, getRange, getRuntime, getScriptReader, getScriptSource, getScriptURL, getStaticField, getThreadContext, gt, gt, isArray, isGenerator, jump, le, le, loadNode, lt, lt, makeArray, matchType, mod, mod, multiply, multiply, ne, ne, negate, negate, newInstance, not, not, or, or, parseChar, parseFloat, parseInt, parseString, primitive, printError, putField, putStaticField, quantity, replaceChar, run, saveNode, setBeanProperty, setBeanProperty, setBeanProperty, setElement, setExitHook, setLine, setLine, setPackage, setRange, setThreadContext, shiftArithmetic, shiftArithmetic, shiftLeft, shiftLeft, shiftRight, shiftRight, subtract, subtract, subtract1, subtract1, throwException, toBoolean, toEnumeration, transform, transform, unparse, xor, xor

Methods inherited from class java.lang.Object

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

Constructor Detail

ImplementationAdapter

public ImplementationAdapter(Implementation impl)

Method Detail

getBaseImpl

public Implementation getBaseImpl()

Returns the base Implementation which was passed to the constructor

Returns:

the base Implementation object.

eval

public java.lang.Object eval(java.lang.String str,
                             Context context)

Evaluate an expreesion

Specified by:

eval in interface Implementation

Overrides:

eval in class PnutsImpl

Parameters:

str - the expression to be evaluated

context - the context in which the expression is evaluated

Returns:

the result of the evaluation

loadFile

public java.lang.Object loadFile(java.lang.String filename,
                                 Context context)
                          throws java.io.FileNotFoundException

Load a script file from local file system

Specified by:

loadFile in interface Implementation

Overrides:

loadFile in class PnutsImpl

Parameters:

filename - the file name of the script

context - the context in which the expression is evaluated

Returns:

the result of the evaluation

Throws:

java.io.FileNotFoundException

load

public java.lang.Object load(java.lang.String file,
                             Context context)
                      throws java.io.FileNotFoundException

Load a script file using classloader

Specified by:

load in interface Implementation

Overrides:

load in class PnutsImpl

Parameters:

file - the name of the script

context - the context in which the script is executed

Returns:

the result of the evaluation

Throws:

java.io.FileNotFoundException

load

public java.lang.Object load(java.net.URL scriptURL,
                             Context context)

Load a script file from a URL

Specified by:

load in interface Implementation

Overrides:

load in class PnutsImpl

Parameters:

scriptURL - the URL of the script

context - the context in which the script is executed

Returns:

the result of the evaluation

accept

public java.lang.Object accept(SimpleNode node,
                               Context context)

Description copied from interface: Implementation

Interpret an AST

Specified by:

accept in interface Implementation

Overrides:

accept in class PnutsImpl

Parameters:

node - the AST

context - the context in which the AST is interpreted