org.mozilla.javascript.optimizer

Class ClassCompiler


public class ClassCompiler
extends java.lang.Object

Generates class files from script sources. since 1.5 Release 5
Author:
Igor Bukanov

Constructor Summary

ClassCompiler(CompilerEnvirons compilerEnv)
Construct ClassCompiler that uses the specified compiler environment when generating classes.

Method Summary

Object[]
compileToClassFiles(String source, String sourceLocation, int lineno, String mainClassName)
Compile JavaScript source into one or more Java class files.
CompilerEnvirons
getCompilerEnv()
Get the compiler environment the compiler uses.
String
getMainMethodClass()
Get the name of the class for main method implementation.
Class
getTargetExtends()
Get the class that the generated target will extend.
Class[]
getTargetImplements()
Get the interfaces that the generated target will implement.
protected String
makeAuxiliaryClassName(String mainClassName, String auxMarker)
Build class name for a auxiliary class generated by compiler.
void
setMainMethodClass(String className)
Set the class name to use for main method implementation.
void
setTargetExtends(Class extendsClass)
Set the class that the generated target will extend.
void
setTargetImplements(Class[] implementsClasses)
Set the interfaces that the generated target will implement.

Constructor Details

ClassCompiler

public ClassCompiler(CompilerEnvirons compilerEnv)
Construct ClassCompiler that uses the specified compiler environment when generating classes.

Method Details

compileToClassFiles

public Object[] compileToClassFiles(String source,
                                    String sourceLocation,
                                    int lineno,
                                    String mainClassName)
Compile JavaScript source into one or more Java class files. The first compiled class will have name mainClassName. If the results of getTargetExtends() or getTargetImplements() are not null, then the first compiled class will extend the specified super class and implement specified interfaces.
Returns:
array where elements with even indexes specifies class name and the followinf odd index gives class file body as byte[] array. The initial elemnt of the array always holds mainClassName and array[1] holds its byte code.

getCompilerEnv

public CompilerEnvirons getCompilerEnv()
Get the compiler environment the compiler uses.

getMainMethodClass

public String getMainMethodClass()
Get the name of the class for main method implementation.

getTargetExtends

public Class getTargetExtends()
Get the class that the generated target will extend.

getTargetImplements

public Class[] getTargetImplements()
Get the interfaces that the generated target will implement.

makeAuxiliaryClassName

protected String makeAuxiliaryClassName(String mainClassName,
                                        String auxMarker)
Build class name for a auxiliary class generated by compiler. If the compiler needs to generate extra classes beyond the main class, it will call this function to build the auxiliary class name. The default implementation simply appends auxMarker to mainClassName but this can be overridden.

setMainMethodClass

public void setMainMethodClass(String className)
Set the class name to use for main method implementation. The class must have a method matching public static void main(Script sc, String[] args), it will be called when main(String[] args) is called in the generated class. The class name should be fully qulified name and include the package name like in org.foo.Bar.

setTargetExtends

public void setTargetExtends(Class extendsClass)
Set the class that the generated target will extend.
Parameters:
extendsClass - the class it extends

setTargetImplements

public void setTargetImplements(Class[] implementsClasses)
Set the interfaces that the generated target will implement.
Parameters:
implementsClasses - an array of Class objects, one for each interface the target will extend