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Script: Write out ASM Code to generate Java class

Posted by: Robert Fischer on 11/05/2010

Edit: Updated version of the script here.

Here’s a nifty little Groovy script to write out the ASM code to generate a given Java class.

#!/usr/bin/env groovy
 
import org.objectweb.asm.util.ASMifierClassVisitor as V
import org.objectweb.asm.ClassReader as R
 
@Grab(group='asm', module='asm-all', version='[3.3,)')
private class JustHereForGrab {}
 
new R(new File(this.args[0]).newInputStream()).accept(new V(new PrintWriter(System.out)), 0)

You will have to update your ~/.groovy/grapeConfig.xml file to point to a repo with ASM in it. I’ve posted my grapeConfig.xml at http://repo.smokejumperit.com/grapeConfig.xml.

Comments

November 5, 2010, Guillaume Laforge wrote: You could use a @GrabResolver, no? Why modify grapeConfig?
November 5, 2010, Robert Fischer wrote: 1) I didn't know about GrabResolver 2) Even if I did, it keeps configuration all in one place

This post was by Robert Fischer, written on November 5, 2010.
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About Robert Fischer

Robert Fischer is a multi-language open source developer currently specializing in Groovy in Grails. In the past, his specialties have been in Perl, Java, Ruby, and OCaml. In the future, his specialty will probably be F# or (preferably) a functional JVM language like Scala or Clojure.

Robert is the author of Grails Persistence in GORM and GSQL, a regular contributor to GroovyMag and JSMag, the founder of the JConch Java concurrency library, and the author/maintainer of Liquibase-DSL and the Autobase database migration plugin for Grails.

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