org.mozilla.javascript
Class Interpreter

java.lang.Object
  org.mozilla.javascript.Interpreter

All Implemented Interfaces:

Evaluator

public final class Interpreter
extends Object
implements Evaluator

Constructor Summary

Interpreter()

Method Summary

static NativeContinuation	captureContinuation(Context cx)
void	captureStackInfo(RhinoException ex) Capture stack information from the given exception.
Object	compile(CompilerEnvirons compilerEnv, ScriptNode tree, String encodedSource, boolean returnFunction) Compile the script or function from intermediate representation tree into an executable form.
Function	createFunctionObject(Context cx, Scriptable scope, Object bytecode, Object staticSecurityDomain) Create a function object.
Script	createScriptObject(Object bytecode, Object staticSecurityDomain) Create a script object.
String	getPatchedStack(RhinoException ex, String nativeStackTrace) Given a native stack trace, patch it with script-specific source and line information
List<String>	getScriptStack(RhinoException ex) Get the script stack for the given exception
ScriptStackElement[][]	getScriptStackElements(RhinoException ex)
String	getSourcePositionFromStack(Context cx, int[] linep) Get the source position information by examining the stack.
static Object	restartContinuation(NativeContinuation c, Context cx, Scriptable scope, Object[] args)
static Object	resumeGenerator(Context cx, Scriptable scope, int operation, Object savedState, Object value)
void	setEvalScriptFlag(Script script) Mark the given script to indicate it was created by a call to eval() or to a Function constructor.

Methods inherited from class java.lang.Object

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

Constructor Detail

Interpreter

public Interpreter()

Method Detail

compile

public Object compile(CompilerEnvirons compilerEnv,
                      ScriptNode tree,
                      String encodedSource,
                      boolean returnFunction)

Description copied from interface: Evaluator

Compile the script or function from intermediate representation tree into an executable form.

Specified by:

compile in interface Evaluator

Parameters:

compilerEnv - Compiler environment

tree - parse tree

encodedSource - encoding of the source code for decompilation

returnFunction - if true, compiling a function

Returns:

an opaque object that can be passed to either createFunctionObject or createScriptObject, depending on the value of returnFunction

createScriptObject

public Script createScriptObject(Object bytecode,
                                 Object staticSecurityDomain)

Description copied from interface: Evaluator

Create a script object.

Specified by:

createScriptObject in interface Evaluator

Parameters:

bytecode - opaque object returned by compile

staticSecurityDomain - security domain

Returns:

Script object that can be evaluated

setEvalScriptFlag

public void setEvalScriptFlag(Script script)

Description copied from interface: Evaluator

Mark the given script to indicate it was created by a call to eval() or to a Function constructor.

Specified by:

setEvalScriptFlag in interface Evaluator

Parameters:

script - script to mark as from eval

createFunctionObject

public Function createFunctionObject(Context cx,
                                     Scriptable scope,
                                     Object bytecode,
                                     Object staticSecurityDomain)

Description copied from interface: Evaluator

Create a function object.

Specified by:

createFunctionObject in interface Evaluator

Parameters:

cx - Current context

scope - scope of the function

bytecode - opaque object returned by compile

staticSecurityDomain - security domain

Returns:

Function object that can be called

captureStackInfo

public void captureStackInfo(RhinoException ex)

Description copied from interface: Evaluator

Capture stack information from the given exception.

Specified by:

captureStackInfo in interface Evaluator

Parameters:

ex - an exception thrown during execution

getSourcePositionFromStack

public String getSourcePositionFromStack(Context cx,
                                         int[] linep)

Description copied from interface: Evaluator

Get the source position information by examining the stack.

Specified by:

getSourcePositionFromStack in interface Evaluator

Parameters:

cx - Context

linep - Array object of length >= 1; getSourcePositionFromStack will assign the line number to linep[0].

Returns:

the name of the file or other source container

getPatchedStack

public String getPatchedStack(RhinoException ex,
                              String nativeStackTrace)

Description copied from interface: Evaluator

Given a native stack trace, patch it with script-specific source and line information

Specified by:

getPatchedStack in interface Evaluator

Parameters:

ex - exception

nativeStackTrace - the native stack trace

Returns:

patched stack trace

getScriptStack

public List<String> getScriptStack(RhinoException ex)

Description copied from interface: Evaluator

Get the script stack for the given exception

Specified by:

getScriptStack in interface Evaluator

Parameters:

ex - exception from execution

Returns:

list of strings for the stack trace

getScriptStackElements

public ScriptStackElement[][] getScriptStackElements(RhinoException ex)

resumeGenerator

public static Object resumeGenerator(Context cx,
                                     Scriptable scope,
                                     int operation,
                                     Object savedState,
                                     Object value)

restartContinuation

public static Object restartContinuation(NativeContinuation c,
                                         Context cx,
                                         Scriptable scope,
                                         Object[] args)

captureContinuation

public static NativeContinuation captureContinuation(Context cx)