RE: [Nant-users] Creating a custom task in Jscript?

[Gert Driesen]

Hi Norman,   I'm not sure what's going on here, but any class that's defined in a script block is in fact compiled as a nested class and the jscript.net compiler seems to do some weird stuff for nested classes. It seems to expect a parameter referring to its parent class for all ctors (meaning there's no real default ctor).   Gert From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Norman Morse Sent: donderdag 12 mei 2005 18:50 To: nant-users@lists.sourceforge.net Subject: [Nant-users] Creating a custom task in Jscript? First, thanks to Ian MacLean for answering my initial question about using Jscript with a <script> task!   I was able to get everything working until I got brave and tried to define a custom task in Jscript :)   I use this nant code:   <target name="test" description="test" >   <call target="custom_tasks" />   <fmexport dbfile="db" user="us" pass="pw" script="scriptit" />   <echo message="test complete" />  </target> <target name="custom_tasks" description="Create Custom Tasks for use" >   <script language="JS" prefix="superego" >    <imports refid="thread.imports" />    <code>     <![CDATA[      TaskNameAttribute("fmexport")       public class fmexport extends Task      {       protected var sFilepath : String;       protected var sAcct : String;       protected var sPass : String;       protected var sScript : String;             // Create the property setters          TaskAttributeAttribute("dbfile", Required=true)  public function set dbfile(n_dbfile: String)   { sFilepath = n_dbfile; };           TaskAttributeAttribute("user", Required=true)  public function set user(n_user : String)    { sAcct = n_user; };          TaskAttributeAttribute("pass", Required=true) public function set pass(n_pass : String)   { sPass = n_pass; } ;          TaskAttributeAttribute("script", Required=true)  public function set script(n_script : String) { sScript = n_script; };            public function fmexport() { };       protected override function ExecuteTask() : void { Log(Level.Info, sFilepath + " " + sAcct + " " + sPass + " " + sScript ); }      }      ]]>    </code>   </script>  </target> And I get this result:   Z:\ratrace\inter\global\game\FileMaker>nant test NAnt 0.85 (Build 0.85.1954.0; nightly; 5/8/2005) Copyright (C) 2001-2005 Gerry Shaw http://nant.sourceforge.net Target framework: Microsoft .NET Framework 1.1 Target(s) specified: test test: custom_tasks:      [script] Scanning assembly "jc-9hg7q" for extensions.   BUILD FAILED   INTERNAL ERROR   System.MissingMethodException: Constructor on type nantea92a6f750e34b6dbc26f44e45b7b89c+fmexport not found.    at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder bin der, Object[] args, CultureInfo culture, Object[] activationAttributes)    at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes)    at System.Reflection.Assembly.CreateInstance(String typeName, Boolean ignoreCase, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture , Object[] activationAttributes)    at NAnt.Core.TaskBuilder.CreateTask() in d:\Source\nant-20050507T183440Z\src\NAnt.Core\TaskBuilder.cs:line 94    at NAnt.Core.TypeFactory.CreateTask(XmlNode taskNode, Project proj) in d:\Source\nant20050507T183440Z\src\NAnt.Core\TypeFactory.cs:line 316    at NAnt.Core.Project.CreateTask(XmlNode taskNode, Target target) in d:\Source\nant20050507T183440Z\src\NAnt.Core\Project.cs:line 1019    at NAnt.Core.Target.Execute() in d:\Source\nant-20050507T183440Z\src\NAnt.Core\Target.cs:line 245    at NAnt.Core.Project.Execute(String targetName, Boolean forceDependencies) in  d:\Source\nant-20050507T183440Z\src\NAnt.Core\Project.cs:line 887    at NAnt.Core.Project.Execute() in d:\Source\nant-20050507T183440Z\src\NAnt.Core\Project.cs:line 839    at NAnt.Core.Project.Run() in d:\Source\nant-20050507T183440Z\src\NAnt.Core\Project.cs:line 924 Observations:   I tried this with various permutations of constructors, all with no joy.   Any Help would be appreciated!   -Norman