net.janino
Class EvaluatorBase

java.lang.Object
  |
  +--net.janino.EvaluatorBase

Direct Known Subclasses:

ClassBodyEvaluator, ExpressionEvaluator, ScriptEvaluator, SimpleCompiler

public class EvaluatorBase

extends java.lang.Object

Utilities for the various "...Evaluator" classes.

Constructor Summary

protected

EvaluatorBase(java.lang.ClassLoader classLoader)

Method Summary

protected Java.ClassDeclaration	addClassDeclaration(Scanner.Location location, Java.CompilationUnit compilationUnit, java.lang.String className, java.lang.Class extendedType, java.lang.Class[] implementedTypes) To the given Java.CompilationUnit, add A class declaration with the given name, superclass and interfaces A method declaration with the given return type, name, parameter names and values and thrown exceptions
protected Java.Block	addClassMethodBlockDeclaration(Scanner.Location location, Java.CompilationUnit compilationUnit, java.lang.String className, java.lang.Class extendedType, java.lang.Class[] implementedTypes, java.lang.Class returnType, java.lang.String methodName, java.lang.String[] parameterNames, java.lang.Class[] parameterTypes, java.lang.Class[] thrownExceptions) To the given Java.CompilationUnit, add A class declaration with the given name, superclass and interfaces A method declaration with the given return type, name, parameter names and values and thrown exceptions A block
protected Java.Type[]	classesToTypes(Scanner.Location location, java.lang.Class[] classes) Convert an array of Classes into an array ofJava.Types.
protected Java.Type	classToType(Scanner.Location location, java.lang.Class clazz) Wrap a reflection Class in a Java.Type object.
protected java.lang.ClassLoader	compileAndLoad(Java.CompilationUnit compilationUnit) Compile the given compilation unit.
protected java.lang.Class	compileAndLoad(Java.CompilationUnit compilationUnit, java.lang.String newClassName) Compile the given compilation unit, load all generated classes, and return the class with the given name.
protected Java.FormalParameter[]	makeFormalParameters(Scanner.Location location, java.lang.String[] parameterNames, java.lang.Class[] parameterTypes) Convert name and Class-base parameters into an array of Java.FormalParameters.
protected void	parseImportDeclarations(Java.CompilationUnit compilationUnit, Scanner scanner) Parse as many import declarations as possible for the given Java.CompilationUnit.

Methods inherited from class java.lang.Object

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

Constructor Detail

EvaluatorBase

protected EvaluatorBase(java.lang.ClassLoader classLoader)

Method Detail

parseImportDeclarations

protected void parseImportDeclarations(Java.CompilationUnit compilationUnit,
                                       Scanner scanner)
                                throws Scanner.ScanException,
                                       Parser.ParseException,
                                       java.io.IOException

Parse as many import declarations as possible for the given Java.CompilationUnit.

Parameters:

compilationUnit -

scanner - Source of tokens

Throws:

Scanner.ScanException -

Parser.ParseException -

java.io.IOException -

addClassDeclaration

protected Java.ClassDeclaration addClassDeclaration(Scanner.Location location,
                                                    Java.CompilationUnit compilationUnit,
                                                    java.lang.String className,
                                                    java.lang.Class extendedType,
                                                    java.lang.Class[] implementedTypes)
                                             throws Parser.ParseException,
                                                    Scanner.ScanException,
                                                    java.io.IOException

To the given Java.CompilationUnit, add

• A class declaration with the given name, superclass and interfaces
• A method declaration with the given return type, name, parameter names and values and thrown exceptions

Parameters:

location -

compilationUnit -

className -

extendedType - (null == java.lang.Object)

implementedTypes -

Returns:

The created Java.ClassDeclaration object

Throws:

Parser.ParseException -

Scanner.ScanException -

java.io.IOException -

addClassMethodBlockDeclaration

protected Java.Block addClassMethodBlockDeclaration(Scanner.Location location,
                                                    Java.CompilationUnit compilationUnit,
                                                    java.lang.String className,
                                                    java.lang.Class extendedType,
                                                    java.lang.Class[] implementedTypes,
                                                    java.lang.Class returnType,
                                                    java.lang.String methodName,
                                                    java.lang.String[] parameterNames,
                                                    java.lang.Class[] parameterTypes,
                                                    java.lang.Class[] thrownExceptions)
                                             throws Parser.ParseException,
                                                    Scanner.ScanException,
                                                    java.io.IOException

To the given Java.CompilationUnit, add

• A class declaration with the given name, superclass and interfaces
• A method declaration with the given return type, name, parameter names and values and thrown exceptions
• A block

Parameters:

location -

compilationUnit -

className -

extendedType - (null == java.lang.Object)

implementedTypes -

returnType -

methodName -

parameterNames -

parameterTypes -

thrownExceptions -

Returns:

The created Java.Block object

Throws:

Parser.ParseException -

Scanner.ScanException -

java.io.IOException -

classToType

protected Java.Type classToType(Scanner.Location location,
                                java.lang.Class clazz)

Wrap a reflection Class in a Java.Type object.

classesToTypes

protected Java.Type[] classesToTypes(Scanner.Location location,
                                     java.lang.Class[] classes)

Convert an array of Classes into an array ofJava.Types.

makeFormalParameters

protected Java.FormalParameter[] makeFormalParameters(Scanner.Location location,
                                                      java.lang.String[] parameterNames,
                                                      java.lang.Class[] parameterTypes)

Convert name and Class-base parameters into an array of Java.FormalParameters.

compileAndLoad

protected java.lang.ClassLoader compileAndLoad(Java.CompilationUnit compilationUnit)
                                        throws Java.CompileException

Compile the given compilation unit. (A "compilation unit" is typically the contents of a Java^TM source file.)

Parameters:

compilationUnit - The parsed compilation unit

Returns:

A java.lang.ClassLoader object through which the compiled classes can be accessed

Throws:

Java.CompileException -

compileAndLoad

protected java.lang.Class compileAndLoad(Java.CompilationUnit compilationUnit,
                                         java.lang.String newClassName)
                                  throws Java.CompileException,
                                         java.lang.ClassNotFoundException

Compile the given compilation unit, load all generated classes, and return the class with the given name.

Parameters:

compilationUnit -

newClassName - The fully qualified class name

Returns:

The loaded class

Throws:

Java.CompileException -

java.lang.ClassNotFoundException - A class with the given name was not declared in the compilation unit