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CodeMap.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body bgcolog=#ffffff>
<h1>Map to the BeanShell Source</h1>
This is a rough guide to the BeanShell source code. See comments in the
individual files for more information.
<p>
<h2>Package Areas</h2>
<ul>
<li><b>bsh</b>
Primary bsh source package
<li><b>bsh/util</b>
Optional bsh utilities
<li><b>bsh/commands</b>
Bsh scripts and Java code which implement Bsh commands
<li><b>bsh/lib</b>
Bsh support files
</ul>
<h3>The bsh package</h3>
<b>Parse Tree Classes</b>
<ul>
<li><b>BSH*.java</b>
<br>
<em>e.g. BSHAllocationExpression.java,
BSHAmbiguousName.java, BSHArguments.java</em>
<p>
These are the abstract syntax tree nodes (subclasses of SimpleNode) -
the internally compiled form of a bsh script. Instances of these nodes
are created by the parser to represent the bsh syntax read from a script.
<p>
The original class structure was created by JJTree but these files
are *not* automatically generated any longer. They have been implemented
with the real code that executes their syntax.
<p>
Most BSH nodes are referenced only through their eval() method which
causes them to evaluate any child nodes and execute their behavior,
returning an object to the caller.
<p>
<li><b>SimpleNode.java</b>
Base class for BSH nodes.
<li><b>ReturnControl.java</b>
Support for control flow of a return statement.
</ul>
<b>I/O support</b>
<ul>
<li><b>CommandLineInputStream.java</b>
Basic support for command line input.
<li><b>Console.java</b>
Support for starting a GUI console.
<li><b>ConsoleInterface.java</b>
<li><b>File.java</b>
File I/O that works relative to the bsh notion of the working directory.
<li><b>ExternalVars.java</b>
Interface for setting/getting variables on a bsh interpreter.
</ul>
<b>Exceptions</b>
<ul>
<li><b>EvalError.java</b>
A problem occurred while parsing or running a bsh script.
<li><b>InterpreterError.java</b>
A fatal internal error occurred.
<li><b>TargetError.java</b>
The target of a bsh operation threw an exception which the script is
allowed to handle.
</ul>
<b>Name Resolution Support</b>
<ul>
<li><b>Name.java</b>
<li><b>NameSpace.java</b>
<li><b>ForBodyNameSpace.java</b>
</ul>
<b>Object / Primitive Wrappers</b>
<ul>
<li><b>Primitive.java</b>
Wraps a primitive numeric value, char, boolean, void, or null.
<li><b>LHS.java</b>
Wraps the left hand side of an assignment
</ul>
<b>Reflection Support</b>
<ul>
<li><b>Reflect.java</b>
<li><b>ReflectError.java</b>
</ul>
<b>Bsh Scripted Object Support</b>
<ul>
<li><b>This.java</b>
The type of a bsh scripted object (a 'this' reference).
<li><b>JThis.java</b>
For backwards compatability with jdk1.2. Adds explicit Swing support.
<li><b>XThis.java</b>
Extended 'this' with support for the new jdk1.3 proxy mechanism.
</ul>
<b>Automatically Generated Files</b>
<br>
The following files are automatically generated by JTree or JavaCC and should
*not* be modified directly.
<ul>
<li><b>Interpreter.java</b>
This is the actual parser class.
<li><b>ASCII_UCodeESC_CharStream.java</b>
<li><b>TokenMgrError.java</b>
<li><b>Token.java</b>
<li><b>ParseException.java</b>
<li><b>InterpreterConstants.java</b>
<li><b>InterpreterTokenManager.java</b>
<li><b>InterpreterTreeConstants.java</b>
<li><b>JJTInterpreterState.java</b>
<li><b>Node.java</b>
</ul>
<p>