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[TCS]About NullPointerException [message #378183] Fri, 15 June 2007 05:01 Go to next message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

Hi,

After a successful build of my TCS file, the parsing generates a
NullPointerException. I am wondering what it can be due to ?
(there is no indeterminism)

trace :
org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
at org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
at org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)

Quentin
Re: [TCS]About NullPointerException [message #378184 is a reply to message #378183] Fri, 15 June 2007 05:35 Go to previous messageGo to next message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

Are you sure there is no syntactic or lexical error before this NPE?
You might want to check all consoles and error logs ;-).

My guess is that my_Parameter tries to initialize a property with a null
value, but I cannot tell why without seeing both the metamodel and TCS.


Regards,

Frédéric Jouault


Quentin Glineur wrote:
> Hi,
>
> After a successful build of my TCS file, the parsing generates a
> NullPointerException. I am wondering what it can be due to ?
> (there is no indeterminism)
>
> trace :
> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>
> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>
> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
> at org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
> at org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
>
> Quentin
Re: [TCS]About NullPointerException [message #378186 is a reply to message #378184] Fri, 15 June 2007 07:13 Go to previous messageGo to next message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------060902090406040602000705
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit

Hello again and thanks for your interest,

I did not find any error on any console I know. Then, to complete my
question I am providing an excerpt of the MM and the TCS. (It seems that
the token stream runs until the My_Parameter name.)

Quentin

____________________________________________________________ _________
KM3 :
____________________________________________________________ _________

class My_Function extends My_Feature {
attribute hasVisibility : Boolean;
attribute visibility[0-1] : VisibilityEnum;
attribute name : String;
reference parameters[*] ordered container : My_Parameter;
attribute return : String;
reference statements[1-*] ordered container : My_Statement;
}

class My_Parameter extends My_Data {
attribute isOptional : Boolean;
attribute hasQualifier : Boolean;
attribute qualifier[0-1] : QualifierEnum;
attribute name : String;
attribute hasType : Boolean;
attribute type[0-1] : String;
attribute hasInitialValue : Boolean;
}

enumeration QualifierEnum {
literal byRef;
literal byVal;
}
____________________________________________________________ _________
TCS :
____________________________________________________________ _________

template My_Function :
(hasVisibility ? visibility)
"Function"
name
"("
parameters{separator = ","}
")"
"As"
return
statements
"End Function"
;

template My_Parameter :
(isOptional ? "Optional")
(hasQualifier ? qualifier)
name
(hasType ? "As" type)
;

enumerationTemplate QualifierEnum auto :
#byval = "ByVal",
#byref = "ByRef"
;

____________________________________________________________ _________
Compilation output :
____________________________________________________________ _________

JARGeneration:
[antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
1989-2005 jGuru.com
[javac] Compiling 1 source file
[javac] ----------
[javac] 1. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 5)
[javac] import antlr.TokenStreamIOException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.TokenStreamIOException is never used
[javac] ----------
[javac] 2. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 6)
[javac] import antlr.ANTLRException;
[javac] ^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.ANTLRException is never used
[javac] ----------
[javac] 3. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 7)
[javac] import antlr.LLkParser;
[javac] ^^^^^^^^^^^^^^^
[javac] The import antlr.LLkParser is never used
[javac] ----------
[javac] 4. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 12)
[javac] import antlr.MismatchedTokenException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.MismatchedTokenException is never used
[javac] ----------
[javac] 5. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 13)
[javac] import antlr.SemanticException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.SemanticException is never used
[javac] ----------
[javac] 5 problems (5 warnings)
[jar] Building jar:
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
BUILD SUCCESSFUL
Total time: 2 seconds

____________________________________________________________ _________
Parsing output :
____________________________________________________________ _________




Fr
Re: [TCS]About NullPointerException [message #378187 is a reply to message #378186] Fri, 15 June 2007 07:33 Go to previous messageGo to next message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

I am not sure where the problem is.

However, I noticed that you use:
(hasVisibility ? visibility)
(hasQualifier ? qualifier)
(hasType ? "As" type)

Why not use isDefined?

(isDefined(visibility) ? visibility)
(isDefined(qualifier) ? qualifier)
(isDefined(type) ? "As" type)

I do not think this is the cause of the problem, but you might want to
make this change anyway ;-).

Please, report back when this is done.


Regards,

Frédéric Jouault


Quentin Glineur wrote:
> Hello again and thanks for your interest,
>
> I did not find any error on any console I know. Then, to complete my
> question I am providing an excerpt of the MM and the TCS. (It seems that
> the token stream runs until the My_Parameter name.)
>
> Quentin
>
> ____________________________________________________________ _________
> KM3 :
> ____________________________________________________________ _________
>
> class My_Function extends My_Feature {
> attribute hasVisibility : Boolean;
> attribute visibility[0-1] : VisibilityEnum;
> attribute name : String;
> reference parameters[*] ordered container : My_Parameter;
> attribute return : String;
> reference statements[1-*] ordered container : My_Statement;
> }
>
> class My_Parameter extends My_Data {
> attribute isOptional : Boolean;
> attribute hasQualifier : Boolean;
> attribute qualifier[0-1] : QualifierEnum;
> attribute name : String;
> attribute hasType : Boolean;
> attribute type[0-1] : String;
> attribute hasInitialValue : Boolean;
> }
>
> enumeration QualifierEnum {
> literal byRef;
> literal byVal;
> }
> ____________________________________________________________ _________
> TCS :
> ____________________________________________________________ _________
>
> template My_Function :
> (hasVisibility ? visibility)
> "Function"
> name
> "("
> parameters{separator = ","}
> ")"
> "As"
> return
> statements
> "End Function"
> ;
>
> template My_Parameter :
> (isOptional ? "Optional")
> (hasQualifier ? qualifier)
> name
> (hasType ? "As" type)
> ;
>
> enumerationTemplate QualifierEnum auto :
> #byval = "ByVal",
> #byref = "ByRef"
> ;
>
> ____________________________________________________________ _________
> Compilation output :
> ____________________________________________________________ _________
>
> JARGeneration:
> [antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
> 1989-2005 jGuru.com
> [javac] Compiling 1 source file
> [javac] ----------
> [javac] 1. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 5)
> [javac] import antlr.TokenStreamIOException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.TokenStreamIOException is never used
> [javac] ----------
> [javac] 2. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 6)
> [javac] import antlr.ANTLRException;
> [javac] ^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.ANTLRException is never used
> [javac] ----------
> [javac] 3. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 7)
> [javac] import antlr.LLkParser;
> [javac] ^^^^^^^^^^^^^^^
> [javac] The import antlr.LLkParser is never used
> [javac] ----------
> [javac] 4. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 12)
> [javac] import antlr.MismatchedTokenException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.MismatchedTokenException is never used
> [javac] ----------
> [javac] 5. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 13)
> [javac] import antlr.SemanticException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.SemanticException is never used
> [javac] ----------
> [javac] 5 problems (5 warnings)
> [jar] Building jar:
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
> BUILD SUCCESSFUL
> Total time: 2 seconds
>
> ____________________________________________________________ _________
> Parsing output :
> ____________________________________________________________ _________
>
>
>
>
> Frédéric Jouault a écrit :
>> Hello,
>>
>> Are you sure there is no syntactic or lexical error before this NPE?
>> You might want to check all consoles and error logs ;-).
>>
>> My guess is that my_Parameter tries to initialize a property with a
>> null value, but I cannot tell why without seeing both the metamodel
>> and TCS.
>>
>>
>> Regards,
>>
>> Frédéric Jouault
>>
>>
>> Quentin Glineur wrote:
>>> Hi,
>>>
>>> After a successful build of my TCS file, the parsing generates a
>>> NullPointerException. I am wondering what it can be due to ?
>>> (there is no indeterminism)
>>>
>>> trace :
>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>>
>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>>
>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>>> at org.atl.engine.injectors.ebnf.Parser.my_Parameter(Unknown Source)
>>> at org.atl.engine.injectors.ebnf.Parser.my_Function(Unknown Source)
>>>
>>> Quentin
>
>
> ------------------------------------------------------------ ------------
>
>
> Buildfile: D:\workspaces\3.2\workspace\TCSSample\bridgeLight\Injection\ build.xml
>
> injection:
> [am3.loadModel] Loading of model MM
> [am3.loadModel] Loading of model M
> [am3.loadModel] Warning: 1:21-1:35: could not set location of M!<unnamed>, disabling further location settings.
> [am3.loadModel] java.lang.NullPointerException
> [am3.loadModel] at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
> [am3.loadModel] at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Feature(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_ContentElement(Unk nown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Content(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.main(Unknown Source)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.pa rse(EBNFInjector2.java:145)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:273)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:243)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:223)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:205)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.inject(EBNFInjec tor2.java:188)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:235)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:252)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.inject(A M3AntToolKit.java:260)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.tasks.LoadModelTask.execute(Lo adModelTask.java:53)
> [am3.loadModel] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.j ava:275)
> [am3.loadModel] at org.apache.tools.ant.Task.perform(Task.java:364)
> [am3.loadModel] at org.apache.tools.ant.Target.execute(Target.java:341)
> [am3.loadModel] at org.apache.tools.ant.Target.performTasks(Target.java:369)
> [am3.loadModel] at org.apache.tools.ant.Project.executeSortedTargets(Project.ja va:1216)
> [am3.loadModel] at org.apache.tools.ant.Project.executeTarget(Project.java:1185 )
> [am3.loadModel] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D efaultExecutor.java:40)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.exe cuteTargets(EclipseDefaultExecutor.java:32)
> [am3.loadModel] at org.apache.tools.ant.Project.executeTargets(Project.java:106 8)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:706)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:457)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
> [am3.loadModel] at org.eclipse.ant.core.AntRunner.run(AntRunner.java:356)
> [am3.loadModel] at org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDe legate$1.run(AntLaunchDelegate.java:230)
> [am3.loadModel] at java.lang.Thread.run(Unknown Source)
> [am3.saveModel] Saving model M
> BUILD SUCCESSFUL
> Total time: 297 milliseconds
Re: [TCS]About NullPointerException [message #378190 is a reply to message #378187] Fri, 15 June 2007 09:51 Go to previous messageGo to next message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

Ok, I have tried what you suggested but it did not bring any enhancement.

Though I have noticed that the tag for My_Function is outside the
My_Content tag (as it should) i.e :

<?xml version="1.0" encoding="ISO-8859-1"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
xmlns:_1="expressions" xmlns:_2="features">
<My_Content>
...
</My_Content>
<_2:My_Function visibility="public" name="add"/>
<_2:My_Parameter/>
</xmi:XMI>

If it could help your diagnostic...

Regards,
Quentin

Frédéric Jouault a écrit :
> Hello,
>
> I am not sure where the problem is.
>
> However, I noticed that you use:
> (hasVisibility ? visibility)
> (hasQualifier ? qualifier)
> (hasType ? "As" type)
>
> Why not use isDefined?
>
> (isDefined(visibility) ? visibility)
> (isDefined(qualifier) ? qualifier)
> (isDefined(type) ? "As" type)
>
> I do not think this is the cause of the problem, but you might want to
> make this change anyway ;-).
>
> Please, report back when this is done.
>
>
> Regards,
>
> Frédéric Jouault
>
>
> Quentin Glineur wrote:
>> Hello again and thanks for your interest,
>>
>> I did not find any error on any console I know. Then, to complete my
>> question I am providing an excerpt of the MM and the TCS. (It seems
>> that the token stream runs until the My_Parameter name.)
>>
>> Quentin
>>
>> ____________________________________________________________ _________
>> KM3 :
>> ____________________________________________________________ _________
>>
>> class My_Function extends My_Feature {
>> attribute hasVisibility : Boolean;
>> attribute visibility[0-1] : VisibilityEnum;
>> attribute name : String;
>> reference parameters[*] ordered container : My_Parameter;
>> attribute return : String;
>> reference statements[1-*] ordered container : My_Statement;
>> }
>>
>> class My_Parameter extends My_Data {
>> attribute isOptional : Boolean;
>> attribute hasQualifier : Boolean;
>> attribute qualifier[0-1] : QualifierEnum;
>> attribute name : String;
>> attribute hasType : Boolean;
>> attribute type[0-1] : String;
>> attribute hasInitialValue : Boolean;
>> }
>>
>> enumeration QualifierEnum {
>> literal byRef;
>> literal byVal;
>> }
>> ____________________________________________________________ _________
>> TCS :
>> ____________________________________________________________ _________
>>
>> template My_Function :
>> (hasVisibility ? visibility)
>> "Function"
>> name
>> "("
>> parameters{separator = ","}
>> ")"
>> "As"
>> return
>> statements
>> "End Function"
>> ;
>>
>> template My_Parameter :
>> (isOptional ? "Optional")
>> (hasQualifier ? qualifier)
>> name
>> (hasType ? "As" type)
>> ;
>>
>> enumerationTemplate QualifierEnum auto :
>> #byval = "ByVal",
>> #byref = "ByRef"
>> ;
>>
>> ____________________________________________________________ _________
>> Compilation output :
>> ____________________________________________________________ _________
>>
>> JARGeneration:
>> [antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
>> 1989-2005 jGuru.com
>> [javac] Compiling 1 source file
>> [javac] ----------
>> [javac] 1. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 5)
>> [javac] import antlr.TokenStreamIOException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.TokenStreamIOException is never used
>> [javac] ----------
>> [javac] 2. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 6)
>> [javac] import antlr.ANTLRException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.ANTLRException is never used
>> [javac] ----------
>> [javac] 3. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 7)
>> [javac] import antlr.LLkParser;
>> [javac] ^^^^^^^^^^^^^^^
>> [javac] The import antlr.LLkParser is never used
>> [javac] ----------
>> [javac] 4. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 12)
>> [javac] import antlr.MismatchedTokenException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.MismatchedTokenException is never used
>> [javac] ----------
>> [javac] 5. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 13)
>> [javac] import antlr.SemanticException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.SemanticException is never used
>> [javac] ----------
>> [javac] 5 problems (5 warnings)
>> [jar] Building jar:
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
>> BUILD SUCCESSFUL
>> Total time: 2 seconds
>>
>> ____________________________________________________________ _________
>> Parsing output :
>> ____________________________________________________________ _________
>>
>>
>>
>>
>> Frédéric Jouault a écrit :
>>> Hello,
>>>
>>> Are you sure there is no syntactic or lexical error before this NPE?
>>> You might want to check all consoles and error logs ;-).
>>>
>>> My guess is that my_Parameter tries to initialize a property with a
>>> null value, but I cannot tell why without seeing both the metamodel
>>> and TCS.
>>>
>>>
>>> Regards,
>>>
>>> Frédéric Jouault
>>>
>>>
>>> Quentin Glineur wrote:
>>>> Hi,
>>>>
>>>> After a successful build of my TCS file, the parsing generates a
>>>> NullPointerException. I am wondering what it can be due to ?
>>>> (there is no indeterminism)
>>>>
>>>> trace :
>>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>>>
>>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>>>
>>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>>>> at org.atl.engine.injectors.ebnf.Parser.my_Parameter(Unknown Source)
>>>> at org.atl.engine.injectors.ebnf.Parser.my_Function(Unknown Source)
>>>>
>>>> Quentin
>>
>>
>> ------------------------------------------------------------ ------------
>>
>>
>> Buildfile:
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\Injection\ build.xml
>>
>> injection:
>> [am3.loadModel] Loading of model MM
>> [am3.loadModel] Loading of model M
>> [am3.loadModel] Warning: 1:21-1:35: could not set location of
>> M!<unnamed>, disabling further location settings.
>> [am3.loadModel] java.lang.NullPointerException
>> [am3.loadModel] at
>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>
>> [am3.loadModel] at
>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Feature(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_ContentElement(Unk nown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Content(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.main(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.pa rse(EBNFInjector2.java:145)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:273)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:243)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:223)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:205)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.inject(EBNFInjec tor2.java:188)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:235)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:252)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.inject(A M3AntToolKit.java:260)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.tasks.LoadModelTask.execute(Lo adModelTask.java:53)
>>
>> [am3.loadModel] at
>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.j ava:275)
>> [am3.loadModel] at org.apache.tools.ant.Task.perform(Task.java:364)
>> [am3.loadModel] at
>> org.apache.tools.ant.Target.execute(Target.java:341)
>> [am3.loadModel] at
>> org.apache.tools.ant.Target.performTasks(Target.java:369)
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeSortedTargets(Project.ja va:1216)
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeTarget(Project.java:1185 )
>> [am3.loadModel] at
>> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D efaultExecutor.java:40)
>>
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.exe cuteTargets(EclipseDefaultExecutor.java:32)
>>
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeTargets(Project.java:106 8)
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:706)
>>
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:457)
>>
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
>> [am3.loadModel] at
>> org.eclipse.ant.core.AntRunner.run(AntRunner.java:356)
>> [am3.loadModel] at
>> org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDe legate$1.run(AntLaunchDelegate.java:230)
>>
>> [am3.loadModel] at java.lang.Thread.run(Unknown Source)
>> [am3.saveModel] Saving model M
>> BUILD SUCCESSFUL
>> Total time: 297 milliseconds
Re: [TCS]About NullPointerException [message #378191 is a reply to message #378190] Fri, 15 June 2007 09:59 Go to previous messageGo to next message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

> Ok, I have tried what you suggested but it did not bring any enhancement.

The enhancement is that you can remove unnecessary Boolean attributes ;-).


> Though I have noticed that the tag for My_Function is outside the
> My_Content tag (as it should) i.e :
>
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
> xmlns:_1="expressions" xmlns:_2="features">
> <My_Content>
> ...
> </My_Content>
> <_2:My_Function visibility="public" name="add"/>
> <_2:My_Parameter/>
> </xmi:XMI>
>
> If it could help your diagnostic...

This is probably caused by the error, of which it is therefore a
symptom, not a cause.


Is it possible for you to package your KM3 metamodel, TCS model, and at
least a sample and post it here, so that I can try to reproduce the problem?


Regards,

Frédéric Jouault
Re: [TCS]About NullPointerException [message #378192 is a reply to message #378191] Fri, 15 June 2007 10:21 Go to previous messageGo to next message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------070902080003070704040908
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit

Here it comes !
As a matter of fact, the KM3 and the TCS have been gotten by generation
hence their form.

The test file is adapted from one of the melon project.

Regards,
Quentin

Fr
Re: [TCS]About NullPointerException [message #378195 is a reply to message #378192] Fri, 15 June 2007 14:57 Go to previous messageGo to next message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

Your problem is that the byRef and byVal enumeration literals are
spelled byref and byval in the TCS. This is strange for a generated file
;-).

Checking for this kind of problem is already in the TODO list for the
TCS2Problem transformation.


Another problem I discovered: you should use "End" "Function" not "End
Function", because End and Function are two separate keywords.


You might also be interested in the VB zoo, which uses a VisualBasic
metamodel and TCS:
http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.gmt/AM3 /org.eclipse.am3.zoos.atlanticVB/build/?root=Technology_Proj ect


Best regards,

Frédéric Jouault


Quentin Glineur wrote:
> Here it comes !
> As a matter of fact, the KM3 and the TCS have been gotten by generation
> hence their form.
>
> The test file is adapted from one of the melon project.
>
> Regards,
> Quentin
>
> Frédéric Jouault a écrit :
>> Hello,
>>
>> > Ok, I have tried what you suggested but it did not bring any
>> enhancement.
>>
>> The enhancement is that you can remove unnecessary Boolean attributes
>> ;-).
>>
>>
>> > Though I have noticed that the tag for My_Function is outside the
>> > My_Content tag (as it should) i.e :
>> >
>> > <?xml version="1.0" encoding="ISO-8859-1"?>
>> > <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
>> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
>> > xmlns:_1="expressions" xmlns:_2="features">
>> > <My_Content>
>> > ...
>> > </My_Content>
>> > <_2:My_Function visibility="public" name="add"/>
>> > <_2:My_Parameter/>
>> > </xmi:XMI>
>> >
>> > If it could help your diagnostic...
>>
>> This is probably caused by the error, of which it is therefore a
>> symptom, not a cause.
>>
>>
>> Is it possible for you to package your KM3 metamodel, TCS model, and
>> at least a sample and post it here, so that I can try to reproduce the
>> problem?
>>
>>
>> Regards,
>>
>> Frédéric Jouault
>
>
> ------------------------------------------------------------ ------------
>
> package PrimitiveTypes {
>
> datatype String;
>
> datatype Boolean;
>
> datatype Integer;
> }
>
> package fr {
>
> package obeo {
>
> abstract class My_LangElement {
> attribute comment[0-1] : String;
> attribute endLineComment[0-1] : String;
> attribute naming[0-1] : String;
> attribute elementId[0-1] : String;
> attribute write : String;
> reference typing[0-1] : My_LangElement;
> reference crossReferences[*] ordered : My_LangElement;
> }
>
> class My_Content extends My_LangElement {
> reference elements[*] ordered container : My_ContentElement;
> }
>
>
> abstract class My_ContentElement extends My_LangElement {
>
> }
>
> class My_FileAttribute extends My_ContentElement {
> attribute name : String;
> reference initialValue[1-*] ordered container : My_Expression;
> }
>
> class My_Option extends My_ContentElement {
> attribute name : String;
> attribute hasEnablement : Boolean;
> attribute enablement[0-1] : EnablementEnum;
> }
>
> abstract class My_Data {
> }
> }
>
> package features {
>
> abstract class My_Feature extends My_Data, My_ContentElement {
> }
>
> class My_Function extends My_Feature {
> -- attribute hasVisibility : Boolean;
> attribute visibility[0-1] : VisibilityEnum;
> attribute name : String;
> reference parameters[*] ordered container : My_Parameter;
> attribute return : String;
> reference statements[1-*] ordered container : My_Statement;
> }
>
> class My_Parameter extends My_Data {
> attribute isOptional : Boolean;
> -- attribute hasQualifier : Boolean;
> attribute qualifier[0-1] : QualifierEnum;
> attribute name : String;
> -- attribute hasType : Boolean;
> attribute type[0-1] : String;
> attribute hasInitialValue : Boolean;
> }
> }
>
> package statements {
>
> abstract class My_Modifier extends My_LangElement {
> }
>
> abstract class My_Statement extends My_Modifier {
> }
>
> class My_RawBody extends My_Statement {
> attribute value[0-1] : String;
> }
> }
>
> package expressions {
>
> abstract class My_Expression extends My_LangElement {
> }
>
> class My_NegativeExpression extends My_Expression {
> reference expression container : My_Expression;
> }
>
>
> abstract class My_Value extends My_Expression {
> }
>
> abstract class My_Literal extends My_Value {
> }
>
> class My_Literal_Literal extends My_Literal {
> attribute value : String;
> }
>
> class My_Literal_Number extends My_Literal {
> attribute value : String;
> }
>
> class My_Literal_Value extends My_Literal {
> attribute value : String;
> }
>
> }
>
>
> package enumerations {
>
> enumeration EnablementEnum {
> literal Off;
> literal On;
> }
>
> enumeration VisibilityEnum {
> literal private;
> literal protected;
> literal public;
> }
>
> enumeration QualifierEnum {
> literal byRef;
> literal byVal;
> }
>
> }
> }
>
>
> ------------------------------------------------------------ ------------
>
> syntax vb {
>
> primitiveTemplate numberSymbol for String using NUMBER_PATTERN :
> value = "%token%";
>
> primitiveTemplate identifierSymbol for String default using IDENTIFIER_PATTERN :
> value = "%token%";
>
> primitiveTemplate literalSymbol for String using LITERAL_PATTERN :
> value = "%token%";
>
> primitiveTemplate valueSymbol for String using VALUE_PATTERN :
> value = "%token%";
>
> primitiveTemplate bodySymbol for String using BODY :
> value = "%token%";
>
> template My_Content main :
> elements
> ;
>
> template My_ContentElement abstract
> ;
>
> template My_FileAttribute :
> "Attribute"
> name
> "="
> initialValue{separator = ","}
> ;
>
> template My_Option :
> "Option"
> name
> (isDefined(enablement) ? enablement)
> ;
>
>
> template My_Feature abstract
> ;
>
> template My_Data abstract
> ;
>
> template My_RawBody :
> value{as = bodySymbol}
> ;
>
> template My_Function
> :
> (isDefined(visibility) ? visibility)
> "Function" name "(" parameters{separator = ","} ")" "As" return statements "End Function"
> ;
>
>
> template My_Parameter :
> (isOptional ? "Optional")
> (isDefined(qualifier) ? qualifier)
> name
> (isDefined(type) ? "As" type)
> ;
>
>
> template My_Statement abstract
> ;
>
>
> template My_Expression abstract
> ;
>
>
> template My_Value abstract
> ;
>
>
> template My_Literal abstract
> ;
>
> template My_Literal_Literal :
> value{as = literalSymbol}
> ;
>
>
> enumerationTemplate EnablementEnum auto :
> #off = "Off",
> #on = "On"
> ;
>
> enumerationTemplate VisibilityEnum auto :
> #public = "Public",
> #protected = "Protected",
> #private = "Private"
> ;
>
> enumerationTemplate QualifierEnum auto :
> #byval = "ByVal",
> #byref = "ByRef"
> ;
>
>
> symbols {
> parenthesisBegin = "(";
> parenthesisEnd = ")";
> coma = ",";
> dot = ".";
> eq = "=";
> }
>
>
> lexer = "
> class vbLexer extends Lexer;
>
> options {
> k = 5;
> charVocabulary = '\\0' .. '\\u00FF';
> testLiterals = false;
> }
>
> {
>
> protected Token makeToken(int t) {
> org.atl.engine.injectors.ebnf.LocationToken ret = null;
> tokenObjectClass = org.atl.engine.injectors.ebnf.LocationToken.class;
> ret = (org.atl.engine.injectors.ebnf.LocationToken)super.makeToken (t);
> ret.setEndLine(getLine());
> ret.setEndColumn(getColumn());
> return ret;
> }
>
> }
>
> protected
> NL
> : ( '\\r' '\\n'
> | '\\r'
> | '\\n'
> )
> {newline();}
> ;
>
> WS
> : ( ' '
> | '\\t'
> | NL
> )
> { $setType(Token.SKIP); }
> ;
>
> COMMENT
> : '\\''
> (~( '\\r'|'\\n'))*
> { $setType(Token.SKIP); }
> ;
>
> NUMBER_PATTERN
> : (NUMBER_REGEX)
> ;
>
> IDENTIFIER_PATTERN options{testLiterals=true;}
> : (IDENTIFIER_REGEX)
> ;
>
> LITERAL_PATTERN
> : (LITERAL_REGEX)
> ;
>
> VALUE_PATTERN
> : ( EVAL_REGEX | DATE_REGEX)
> ;
>
> //////////////////////////////////////////////////////////// //////////
>
> protected NUMBER_REGEX
> : ('0'..'9')+
> ('.' ('0'..'9')+)?
> ('!')?
> {System.out.println(\"Number : \" + $getText);}
> ;
>
> protected ALPHA
> : 'a'..'z'
> | 'A'..'Z'
> //For Unicode compatibility (from 0000 to 00ff)
> | '\\u00C0' .. '\\u00D6'
> | '\\u00D8' .. '\\u00F6'
> | '\\u00F8' .. '\\u00FF'
> ;
>
> protected
> DIGIT
> : '0'..'9'
> ;
>
> protected IDENTIFIER_CHAR
> : ('_' | ALPHA | DIGIT | '&')
> ;
>
> protected UNDERSCORED_CHAR
> : '_' IDENTIFIER_CHAR
> ;
>
> protected IDENTIFIER_REGEX
> : (ALPHA | UNDERSCORED_CHAR)
> (IDENTIFIER_CHAR)*
> {System.out.println(\"Identifier : \" + $getText);}
> ;
>
> protected EVAL_REGEX
> : '&'(ALPHA)+('&')?
> ;
>
> protected DATE_REGEX
> : '#' (DIGIT '/')+ '#'
> ;
>
> protected LITERAL_REGEX
> : '\"' ( ~('\"'))* '\"'
> {System.out.println(\"Literal : \" + $getText);}
> ;
>
> BODY
> : ('$'(options{greedy=false;}:('\\n' {newline();}| ~ '\\n'))* '$')
> {System.out.println(\"Body : \" + $getText);}
> ;
>
>
> ";
>
> }
>
>
> ------------------------------------------------------------ ------------
>
> Attribute VB_Name = "mMelonCtls_i"
> Option Explicit
>
> Public Function g_ControlSetValue(ByRef Control As MControl, ByVal Value As Long) As Boolean
> $
> If (Control Is Nothing) Then _
> Exit Function
>
> Control.Value = Value
> g_ControlSetValue = True
> $
> End Function
>
> Public Function g_ControlGetValue(ByRef Control As MControl, ByRef Value As Long) As Boolean
> $
> If (Control Is Nothing) Then _
> Exit Function
>
> Value = Control.Value
> g_ControlGetValue = True
> $
> End Function
>
> Public Function g_SliderInit(ByRef Slider As MControl, Optional ByVal Min As Long, Optional ByVal Max As Long, Optional ByVal Value As Long) As Boolean
> $
> If (Slider Is Nothing) Then _
> Exit Function
>
> On Error Resume Next
>
> Dim ps As CSlider
>
> Err.Clear
> Set ps = Slider
> If Err.Number = 0 Then
> If Min <> -1 Then _
> ps.Min = Min
>
> If Max <> -1 Then _
> ps.Max = Max
>
> If Value <> -1 Then _
> ps.Value = Value
>
> g_SliderInit = True
> End If
> $
> End Function
Re: [TCS]About NullPointerException [message #378260 is a reply to message #378195] Mon, 18 June 2007 04:24 Go to previous messageGo to next message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

Frédéric Jouault a écrit :
Hello,

> Hello,
>
> Your problem is that the byRef and byVal enumeration literals are
> spelled byref and byval in the TCS. This is strange for a generated file
> ;-).

Yet, you are right, this is one of the only piece of my code that are
still handcrafted !

> Checking for this kind of problem is already in the TODO list for the
> TCS2Problem transformation.

Great ! As a grain of sand, it has been jamming my work for quite long
time without being quickly identifiable: so thanks for your help !

>
> Another problem I discovered: you should use "End" "Function" not "End
> Function", because End and Function are two separate keywords.
>

Ok, this one is now fixed.

> You might also be interested in the VB zoo, which uses a VisualBasic
> metamodel and TCS:
> http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.gmt/AM3 /org.eclipse.am3.zoos.atlanticVB/build/?root=Technology_Proj ect
>

Thanks a lot, I will use it as inspiration !

Regards,

Quentin

>
> Best regards,
>
> Frédéric Jouault
>
>
> Quentin Glineur wrote:
>> Here it comes !
>> As a matter of fact, the KM3 and the TCS have been gotten by
>> generation hence their form.
>>
>> The test file is adapted from one of the melon project.
>>
>> Regards,
>> Quentin
>>
>> Frédéric Jouault a écrit :
>>> Hello,
>>>
>>> > Ok, I have tried what you suggested but it did not bring any
>>> enhancement.
>>>
>>> The enhancement is that you can remove unnecessary Boolean attributes
>>> ;-).
>>>
>>>
>>> > Though I have noticed that the tag for My_Function is outside the
>>> > My_Content tag (as it should) i.e :
>>> >
>>> > <?xml version="1.0" encoding="ISO-8859-1"?>
>>> > <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
>>> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
>>> > xmlns:_1="expressions" xmlns:_2="features">
>>> > <My_Content>
>>> > ...
>>> > </My_Content>
>>> > <_2:My_Function visibility="public" name="add"/>
>>> > <_2:My_Parameter/>
>>> > </xmi:XMI>
>>> >
>>> > If it could help your diagnostic...
>>>
>>> This is probably caused by the error, of which it is therefore a
>>> symptom, not a cause.
>>>
>>>
>>> Is it possible for you to package your KM3 metamodel, TCS model, and
>>> at least a sample and post it here, so that I can try to reproduce
>>> the problem?
>>>
>>>
>>> Regards,
>>>
>>> Frédéric Jouault
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> package PrimitiveTypes {
>>
>> datatype String;
>>
>> datatype Boolean;
>>
>> datatype Integer;
>> }
>>
>> package fr {
>>
>> package obeo {
>>
>> abstract class My_LangElement {
>> attribute comment[0-1] : String;
>> attribute endLineComment[0-1] : String;
>> attribute naming[0-1] : String;
>> attribute elementId[0-1] : String;
>> attribute write : String;
>> reference typing[0-1] : My_LangElement;
>> reference crossReferences[*] ordered : My_LangElement;
>> }
>>
>> class My_Content extends My_LangElement {
>> reference elements[*] ordered container : My_ContentElement;
>> }
>>
>>
>> abstract class My_ContentElement extends My_LangElement {
>>
>> }
>>
>> class My_FileAttribute extends My_ContentElement {
>> attribute name : String;
>> reference initialValue[1-*] ordered container : My_Expression;
>> }
>>
>> class My_Option extends My_ContentElement {
>> attribute name : String;
>> attribute hasEnablement : Boolean;
>> attribute enablement[0-1] : EnablementEnum;
>> }
>>
>> abstract class My_Data {
>> }
>> }
>>
>> package features {
>>
>> abstract class My_Feature extends My_Data, My_ContentElement
>> {
>> }
>>
>> class My_Function extends My_Feature {
>> -- attribute hasVisibility : Boolean;
>> attribute visibility[0-1] : VisibilityEnum;
>> attribute name : String;
>> reference parameters[*] ordered container : My_Parameter;
>> attribute return : String;
>> reference statements[1-*] ordered container : My_Statement;
>> }
>>
>> class My_Parameter extends My_Data {
>> attribute isOptional : Boolean;
>> -- attribute hasQualifier : Boolean;
>> attribute qualifier[0-1] : QualifierEnum;
>> attribute name : String;
>> -- attribute hasType : Boolean;
>> attribute type[0-1] : String;
>> attribute hasInitialValue : Boolean;
>> }
>> }
>>
>> package statements {
>>
>> abstract class My_Modifier extends My_LangElement
>> {
>> }
>>
>> abstract class My_Statement extends My_Modifier {
>> }
>>
>> class My_RawBody extends My_Statement {
>> attribute value[0-1] : String;
>> }
>> }
>>
>> package expressions {
>>
>> abstract class My_Expression extends My_LangElement
>> {
>> }
>>
>> class My_NegativeExpression extends My_Expression {
>> reference expression container : My_Expression;
>> }
>>
>>
>> abstract class My_Value extends My_Expression {
>> }
>>
>> abstract class My_Literal extends My_Value {
>> }
>>
>> class My_Literal_Literal extends My_Literal {
>> attribute value : String;
>> }
>>
>> class My_Literal_Number extends My_Literal {
>> attribute value : String;
>> }
>>
>> class My_Literal_Value extends My_Literal {
>> attribute value : String;
>> }
>>
>> }
>>
>>
>> package enumerations {
>>
>> enumeration EnablementEnum {
>> literal Off;
>> literal On;
>> }
>>
>> enumeration VisibilityEnum {
>> literal private;
>> literal protected;
>> literal public;
>> }
>>
>> enumeration QualifierEnum {
>> literal byRef;
>> literal byVal;
>> }
>>
>> }
>> }
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> syntax vb {
>>
>> primitiveTemplate numberSymbol for String using NUMBER_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate identifierSymbol for String default using
>> IDENTIFIER_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate literalSymbol for String using LITERAL_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate valueSymbol for String using VALUE_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate bodySymbol for String using BODY :
>> value = "%token%";
>>
>> template My_Content main :
>> elements
>> ;
>>
>> template My_ContentElement abstract ;
>>
>> template My_FileAttribute :
>> "Attribute"
>> name
>> "="
>> initialValue{separator = ","}
>> ;
>>
>> template My_Option :
>> "Option"
>> name
>> (isDefined(enablement) ? enablement)
>> ;
>>
>>
>> template My_Feature abstract ;
>>
>> template My_Data abstract ;
>>
>> template My_RawBody :
>> value{as = bodySymbol}
>> ;
>>
>> template My_Function
>> :
>> (isDefined(visibility) ? visibility)
>> "Function" name "(" parameters{separator = ","} ")" "As"
>> return statements "End Function"
>> ;
>>
>>
>> template My_Parameter :
>> (isOptional ? "Optional")
>> (isDefined(qualifier) ? qualifier) name
>> (isDefined(type) ? "As" type)
>> ;
>>
>>
>> template My_Statement abstract ;
>>
>>
>> template My_Expression abstract
>> ;
>>
>>
>> template My_Value abstract ;
>>
>>
>> template My_Literal abstract
>> ;
>>
>> template My_Literal_Literal :
>> value{as = literalSymbol}
>> ;
>>
>>
>> enumerationTemplate EnablementEnum auto :
>> #off = "Off",
>> #on = "On"
>> ;
>>
>> enumerationTemplate VisibilityEnum auto :
>> #public = "Public",
>> #protected = "Protected",
>> #private = "Private"
>> ;
>>
>> enumerationTemplate QualifierEnum auto :
>> #byval = "ByVal",
>> #byref = "ByRef"
>> ;
>>
>>
>> symbols {
>> parenthesisBegin = "(";
>> parenthesisEnd = ")";
>> coma = ",";
>> dot = ".";
>> eq = "=";
>> }
>>
>>
>> lexer = "
>> class vbLexer extends Lexer;
>>
>> options {
>> k = 5;
>> charVocabulary = '\\0' .. '\\u00FF';
>> testLiterals = false;
>> }
>>
>> {
>>
>> protected Token makeToken(int t) {
>> org.atl.engine.injectors.ebnf.LocationToken ret = null;
>> tokenObjectClass =
>> org.atl.engine.injectors.ebnf.LocationToken.class;
>> ret =
>> (org.atl.engine.injectors.ebnf.LocationToken)super.makeToken (t);
>> ret.setEndLine(getLine());
>> ret.setEndColumn(getColumn());
>> return ret;
>> }
>>
>> }
>>
>> protected
>> NL
>> : ( '\\r' '\\n'
>> | '\\r'
>> | '\\n'
>> )
>> {newline();}
>> ;
>>
>> WS
>> : ( ' '
>> | '\\t'
>> | NL
>> )
>> { $setType(Token.SKIP); }
>> ;
>>
>> COMMENT
>> : '\\''
>> (~( '\\r'|'\\n'))*
>> { $setType(Token.SKIP); }
>> ;
>>
>> NUMBER_PATTERN
>> : (NUMBER_REGEX)
>> ;
>>
>> IDENTIFIER_PATTERN options{testLiterals=true;}
>> : (IDENTIFIER_REGEX)
>> ;
>>
>> LITERAL_PATTERN
>> : (LITERAL_REGEX)
>> ;
>>
>> VALUE_PATTERN
>> : ( EVAL_REGEX | DATE_REGEX)
>> ;
>>
>> //////////////////////////////////////////////////////////// //////////
>>
>> protected NUMBER_REGEX
>> : ('0'..'9')+
>> ('.' ('0'..'9')+)?
>> ('!')?
>> {System.out.println(\"Number : \" + $getText);}
>> ;
>>
>> protected ALPHA
>> : 'a'..'z'
>> | 'A'..'Z'
>> //For Unicode compatibility (from 0000 to 00ff)
>> | '\\u00C0' .. '\\u00D6'
>> | '\\u00D8' .. '\\u00F6'
>> | '\\u00F8' .. '\\u00FF'
>> ;
>>
>> protected
>> DIGIT
>> : '0'..'9'
>> ;
>>
>> protected IDENTIFIER_CHAR
>> : ('_' | ALPHA | DIGIT | '&')
>> ;
>>
>> protected UNDERSCORED_CHAR
>> : '_' IDENTIFIER_CHAR
>> ;
>>
>> protected IDENTIFIER_REGEX
>> : (ALPHA | UNDERSCORED_CHAR)
>> (IDENTIFIER_CHAR)*
>> {System.out.println(\"Identifier : \" + $getText);}
>> ;
>>
>> protected EVAL_REGEX
>> : '&'(ALPHA)+('&')?
>> ;
>>
>> protected DATE_REGEX
>> : '#' (DIGIT '/')+ '#'
>> ;
>>
>> protected LITERAL_REGEX
>> : '\"' ( ~('\"'))* '\"'
>> {System.out.println(\"Literal : \" + $getText);}
>> ;
>>
>> BODY
>> : ('$'(options{greedy=false;}:('\\n' {newline();}| ~ '\\n'))* '$')
>> {System.out.println(\"Body : \" + $getText);}
>> ;
>>
>>
>> ";
>>
>> }
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> Attribute VB_Name = "mMelonCtls_i"
>> Option Explicit
>>
>> Public Function g_ControlSetValue(ByRef Control As MControl, ByVal
>> Value As Long) As Boolean
>> $
>> If (Control Is Nothing) Then _
>> Exit Function
>>
>> Control.Value = Value
>> g_ControlSetValue = True
>> $
>> End Function
>>
>> Public Function g_ControlGetValue(ByRef Control As MControl, ByRef
>> Value As Long) As Boolean
>> $
>> If (Control Is Nothing) Then _
>> Exit Function
>>
>> Value = Control.Value
>> g_ControlGetValue = True
>> $
>> End Function
>>
>> Public Function g_SliderInit(ByRef Slider As MControl, Optional ByVal
>> Min As Long, Optional ByVal Max As Long, Optional ByVal Value As Long)
>> As Boolean
>> $
>> If (Slider Is Nothing) Then _
>> Exit Function
>>
>> On Error Resume Next
>>
>> Dim ps As CSlider
>>
>> Err.Clear
>> Set ps = Slider
>> If Err.Number = 0 Then
>> If Min <> -1 Then _
>> ps.Min = Min
>>
>> If Max <> -1 Then _
>> ps.Max = Max
>>
>> If Value <> -1 Then _
>> ps.Value = Value
>>
>> g_SliderInit = True
>> End If
>> $
>> End Function
Re: [TCS]About NullPointerException [message #378515 is a reply to message #378260] Thu, 19 July 2007 10:25 Go to previous messageGo to next message
Eclipse User
Originally posted by: remi.viaux.mbda-systems.com

Hi Quentin,

Regenerate the ecore metamodel from you're km3 metamodel.
I had the same error that you Null pointer exception, and I had just
modified km3 file and forget to udate the ecore one.
After the regeneration, no more error appears

It's maybe another problem that you have, but just try ; it's easy to
check ^^

Regards,

Remi Viaux
Re: [TCS]About NullPointerException [message #378517 is a reply to message #378515] Thu, 19 July 2007 11:13 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------080607090607080802030600
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit

Hi Remi,

I am sorry but I do not understand your post :-/

If you are trying to get an injector from the files I have posted, be
sure to fix them the way Frederic told (i.e. correct the literal names
(byRef, byVal) either in KM3 or in TCS).

Regards,

Quentin GLINEUR

Remi Viaux a
Re: [TCS]About NullPointerException [message #601879 is a reply to message #378183] Fri, 15 June 2007 05:35 Go to previous message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

Are you sure there is no syntactic or lexical error before this NPE?
You might want to check all consoles and error logs ;-).

My guess is that my_Parameter tries to initialize a property with a null
value, but I cannot tell why without seeing both the metamodel and TCS.


Regards,

Frédéric Jouault


Quentin Glineur wrote:
> Hi,
>
> After a successful build of my TCS file, the parsing generates a
> NullPointerException. I am wondering what it can be due to ?
> (there is no indeterminism)
>
> trace :
> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>
> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>
> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
> at org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
> at org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
>
> Quentin
Re: [TCS]About NullPointerException [message #601904 is a reply to message #378184] Fri, 15 June 2007 07:13 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------060902090406040602000705
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit

Hello again and thanks for your interest,

I did not find any error on any console I know. Then, to complete my
question I am providing an excerpt of the MM and the TCS. (It seems that
the token stream runs until the My_Parameter name.)

Quentin

____________________________________________________________ _________
KM3 :
____________________________________________________________ _________

class My_Function extends My_Feature {
attribute hasVisibility : Boolean;
attribute visibility[0-1] : VisibilityEnum;
attribute name : String;
reference parameters[*] ordered container : My_Parameter;
attribute return : String;
reference statements[1-*] ordered container : My_Statement;
}

class My_Parameter extends My_Data {
attribute isOptional : Boolean;
attribute hasQualifier : Boolean;
attribute qualifier[0-1] : QualifierEnum;
attribute name : String;
attribute hasType : Boolean;
attribute type[0-1] : String;
attribute hasInitialValue : Boolean;
}

enumeration QualifierEnum {
literal byRef;
literal byVal;
}
____________________________________________________________ _________
TCS :
____________________________________________________________ _________

template My_Function :
(hasVisibility ? visibility)
"Function"
name
"("
parameters{separator = ","}
")"
"As"
return
statements
"End Function"
;

template My_Parameter :
(isOptional ? "Optional")
(hasQualifier ? qualifier)
name
(hasType ? "As" type)
;

enumerationTemplate QualifierEnum auto :
#byval = "ByVal",
#byref = "ByRef"
;

____________________________________________________________ _________
Compilation output :
____________________________________________________________ _________

JARGeneration:
[antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
1989-2005 jGuru.com
[javac] Compiling 1 source file
[javac] ----------
[javac] 1. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 5)
[javac] import antlr.TokenStreamIOException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.TokenStreamIOException is never used
[javac] ----------
[javac] 2. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 6)
[javac] import antlr.ANTLRException;
[javac] ^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.ANTLRException is never used
[javac] ----------
[javac] 3. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 7)
[javac] import antlr.LLkParser;
[javac] ^^^^^^^^^^^^^^^
[javac] The import antlr.LLkParser is never used
[javac] ----------
[javac] 4. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 12)
[javac] import antlr.MismatchedTokenException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.MismatchedTokenException is never used
[javac] ----------
[javac] 5. WARNING in
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
(at line 13)
[javac] import antlr.SemanticException;
[javac] ^^^^^^^^^^^^^^^^^^^^^^^
[javac] The import antlr.SemanticException is never used
[javac] ----------
[javac] 5 problems (5 warnings)
[jar] Building jar:
D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
BUILD SUCCESSFUL
Total time: 2 seconds

____________________________________________________________ _________
Parsing output :
____________________________________________________________ _________




Fr
Re: [TCS]About NullPointerException [message #601910 is a reply to message #378186] Fri, 15 June 2007 07:33 Go to previous message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

I am not sure where the problem is.

However, I noticed that you use:
(hasVisibility ? visibility)
(hasQualifier ? qualifier)
(hasType ? "As" type)

Why not use isDefined?

(isDefined(visibility) ? visibility)
(isDefined(qualifier) ? qualifier)
(isDefined(type) ? "As" type)

I do not think this is the cause of the problem, but you might want to
make this change anyway ;-).

Please, report back when this is done.


Regards,

Frédéric Jouault


Quentin Glineur wrote:
> Hello again and thanks for your interest,
>
> I did not find any error on any console I know. Then, to complete my
> question I am providing an excerpt of the MM and the TCS. (It seems that
> the token stream runs until the My_Parameter name.)
>
> Quentin
>
> ____________________________________________________________ _________
> KM3 :
> ____________________________________________________________ _________
>
> class My_Function extends My_Feature {
> attribute hasVisibility : Boolean;
> attribute visibility[0-1] : VisibilityEnum;
> attribute name : String;
> reference parameters[*] ordered container : My_Parameter;
> attribute return : String;
> reference statements[1-*] ordered container : My_Statement;
> }
>
> class My_Parameter extends My_Data {
> attribute isOptional : Boolean;
> attribute hasQualifier : Boolean;
> attribute qualifier[0-1] : QualifierEnum;
> attribute name : String;
> attribute hasType : Boolean;
> attribute type[0-1] : String;
> attribute hasInitialValue : Boolean;
> }
>
> enumeration QualifierEnum {
> literal byRef;
> literal byVal;
> }
> ____________________________________________________________ _________
> TCS :
> ____________________________________________________________ _________
>
> template My_Function :
> (hasVisibility ? visibility)
> "Function"
> name
> "("
> parameters{separator = ","}
> ")"
> "As"
> return
> statements
> "End Function"
> ;
>
> template My_Parameter :
> (isOptional ? "Optional")
> (hasQualifier ? qualifier)
> name
> (hasType ? "As" type)
> ;
>
> enumerationTemplate QualifierEnum auto :
> #byval = "ByVal",
> #byref = "ByRef"
> ;
>
> ____________________________________________________________ _________
> Compilation output :
> ____________________________________________________________ _________
>
> JARGeneration:
> [antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
> 1989-2005 jGuru.com
> [javac] Compiling 1 source file
> [javac] ----------
> [javac] 1. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 5)
> [javac] import antlr.TokenStreamIOException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.TokenStreamIOException is never used
> [javac] ----------
> [javac] 2. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 6)
> [javac] import antlr.ANTLRException;
> [javac] ^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.ANTLRException is never used
> [javac] ----------
> [javac] 3. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 7)
> [javac] import antlr.LLkParser;
> [javac] ^^^^^^^^^^^^^^^
> [javac] The import antlr.LLkParser is never used
> [javac] ----------
> [javac] 4. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 12)
> [javac] import antlr.MismatchedTokenException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.MismatchedTokenException is never used
> [javac] ----------
> [javac] 5. WARNING in
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
> (at line 13)
> [javac] import antlr.SemanticException;
> [javac] ^^^^^^^^^^^^^^^^^^^^^^^
> [javac] The import antlr.SemanticException is never used
> [javac] ----------
> [javac] 5 problems (5 warnings)
> [jar] Building jar:
> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
> BUILD SUCCESSFUL
> Total time: 2 seconds
>
> ____________________________________________________________ _________
> Parsing output :
> ____________________________________________________________ _________
>
>
>
>
> Frédéric Jouault a écrit :
>> Hello,
>>
>> Are you sure there is no syntactic or lexical error before this NPE?
>> You might want to check all consoles and error logs ;-).
>>
>> My guess is that my_Parameter tries to initialize a property with a
>> null value, but I cannot tell why without seeing both the metamodel
>> and TCS.
>>
>>
>> Regards,
>>
>> Frédéric Jouault
>>
>>
>> Quentin Glineur wrote:
>>> Hi,
>>>
>>> After a successful build of my TCS file, the parsing generates a
>>> NullPointerException. I am wondering what it can be due to ?
>>> (there is no indeterminism)
>>>
>>> trace :
>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>>
>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>>
>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>>> at org.atl.engine.injectors.ebnf.Parser.my_Parameter(Unknown Source)
>>> at org.atl.engine.injectors.ebnf.Parser.my_Function(Unknown Source)
>>>
>>> Quentin
>
>
> ------------------------------------------------------------ ------------
>
>
> Buildfile: D:\workspaces\3.2\workspace\TCSSample\bridgeLight\Injection\ build.xml
>
> injection:
> [am3.loadModel] Loading of model MM
> [am3.loadModel] Loading of model M
> [am3.loadModel] Warning: 1:21-1:35: could not set location of M!<unnamed>, disabling further location settings.
> [am3.loadModel] java.lang.NullPointerException
> [am3.loadModel] at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
> [am3.loadModel] at org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Feature(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_ContentElement(Unk nown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.my_Content(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.vbParser.main(Unknown Source)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.pa rse(EBNFInjector2.java:145)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:273)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:243)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:223)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:205)
> [am3.loadModel] at org.atl.engine.injectors.ebnf.EBNFInjector2.inject(EBNFInjec tor2.java:188)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:235)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:252)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.inject(A M3AntToolKit.java:260)
> [am3.loadModel] at org.eclipse.gmt.am3.tools.ant.tasks.LoadModelTask.execute(Lo adModelTask.java:53)
> [am3.loadModel] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.j ava:275)
> [am3.loadModel] at org.apache.tools.ant.Task.perform(Task.java:364)
> [am3.loadModel] at org.apache.tools.ant.Target.execute(Target.java:341)
> [am3.loadModel] at org.apache.tools.ant.Target.performTasks(Target.java:369)
> [am3.loadModel] at org.apache.tools.ant.Project.executeSortedTargets(Project.ja va:1216)
> [am3.loadModel] at org.apache.tools.ant.Project.executeTarget(Project.java:1185 )
> [am3.loadModel] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D efaultExecutor.java:40)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.exe cuteTargets(EclipseDefaultExecutor.java:32)
> [am3.loadModel] at org.apache.tools.ant.Project.executeTargets(Project.java:106 8)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:706)
> [am3.loadModel] at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:457)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [am3.loadModel] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
> [am3.loadModel] at org.eclipse.ant.core.AntRunner.run(AntRunner.java:356)
> [am3.loadModel] at org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDe legate$1.run(AntLaunchDelegate.java:230)
> [am3.loadModel] at java.lang.Thread.run(Unknown Source)
> [am3.saveModel] Saving model M
> BUILD SUCCESSFUL
> Total time: 297 milliseconds
Re: [TCS]About NullPointerException [message #601939 is a reply to message #378187] Fri, 15 June 2007 09:51 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

Ok, I have tried what you suggested but it did not bring any enhancement.

Though I have noticed that the tag for My_Function is outside the
My_Content tag (as it should) i.e :

<?xml version="1.0" encoding="ISO-8859-1"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
xmlns:_1="expressions" xmlns:_2="features">
<My_Content>
...
</My_Content>
<_2:My_Function visibility="public" name="add"/>
<_2:My_Parameter/>
</xmi:XMI>

If it could help your diagnostic...

Regards,
Quentin

Frédéric Jouault a écrit :
> Hello,
>
> I am not sure where the problem is.
>
> However, I noticed that you use:
> (hasVisibility ? visibility)
> (hasQualifier ? qualifier)
> (hasType ? "As" type)
>
> Why not use isDefined?
>
> (isDefined(visibility) ? visibility)
> (isDefined(qualifier) ? qualifier)
> (isDefined(type) ? "As" type)
>
> I do not think this is the cause of the problem, but you might want to
> make this change anyway ;-).
>
> Please, report back when this is done.
>
>
> Regards,
>
> Frédéric Jouault
>
>
> Quentin Glineur wrote:
>> Hello again and thanks for your interest,
>>
>> I did not find any error on any console I know. Then, to complete my
>> question I am providing an excerpt of the MM and the TCS. (It seems
>> that the token stream runs until the My_Parameter name.)
>>
>> Quentin
>>
>> ____________________________________________________________ _________
>> KM3 :
>> ____________________________________________________________ _________
>>
>> class My_Function extends My_Feature {
>> attribute hasVisibility : Boolean;
>> attribute visibility[0-1] : VisibilityEnum;
>> attribute name : String;
>> reference parameters[*] ordered container : My_Parameter;
>> attribute return : String;
>> reference statements[1-*] ordered container : My_Statement;
>> }
>>
>> class My_Parameter extends My_Data {
>> attribute isOptional : Boolean;
>> attribute hasQualifier : Boolean;
>> attribute qualifier[0-1] : QualifierEnum;
>> attribute name : String;
>> attribute hasType : Boolean;
>> attribute type[0-1] : String;
>> attribute hasInitialValue : Boolean;
>> }
>>
>> enumeration QualifierEnum {
>> literal byRef;
>> literal byVal;
>> }
>> ____________________________________________________________ _________
>> TCS :
>> ____________________________________________________________ _________
>>
>> template My_Function :
>> (hasVisibility ? visibility)
>> "Function"
>> name
>> "("
>> parameters{separator = ","}
>> ")"
>> "As"
>> return
>> statements
>> "End Function"
>> ;
>>
>> template My_Parameter :
>> (isOptional ? "Optional")
>> (hasQualifier ? qualifier)
>> name
>> (hasType ? "As" type)
>> ;
>>
>> enumerationTemplate QualifierEnum auto :
>> #byval = "ByVal",
>> #byref = "ByRef"
>> ;
>>
>> ____________________________________________________________ _________
>> Compilation output :
>> ____________________________________________________________ _________
>>
>> JARGeneration:
>> [antlr] ANTLR Parser Generator Version 2.7.5 (20050128)
>> 1989-2005 jGuru.com
>> [javac] Compiling 1 source file
>> [javac] ----------
>> [javac] 1. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 5)
>> [javac] import antlr.TokenStreamIOException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.TokenStreamIOException is never used
>> [javac] ----------
>> [javac] 2. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 6)
>> [javac] import antlr.ANTLRException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.ANTLRException is never used
>> [javac] ----------
>> [javac] 3. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 7)
>> [javac] import antlr.LLkParser;
>> [javac] ^^^^^^^^^^^^^^^
>> [javac] The import antlr.LLkParser is never used
>> [javac] ----------
>> [javac] 4. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 12)
>> [javac] import antlr.MismatchedTokenException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.MismatchedTokenException is never used
>> [javac] ----------
>> [javac] 5. WARNING in
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\org\at l\engine\injectors\ebnf\myParser.java
>> (at line 13)
>> [javac] import antlr.SemanticException;
>> [javac] ^^^^^^^^^^^^^^^^^^^^^^^
>> [javac] The import antlr.SemanticException is never used
>> [javac] ----------
>> [javac] 5 problems (5 warnings)
>> [jar] Building jar:
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\TCS\my-imp orter.jar
>> BUILD SUCCESSFUL
>> Total time: 2 seconds
>>
>> ____________________________________________________________ _________
>> Parsing output :
>> ____________________________________________________________ _________
>>
>>
>>
>>
>> Frédéric Jouault a écrit :
>>> Hello,
>>>
>>> Are you sure there is no syntactic or lexical error before this NPE?
>>> You might want to check all consoles and error logs ;-).
>>>
>>> My guess is that my_Parameter tries to initialize a property with a
>>> null value, but I cannot tell why without seeing both the metamodel
>>> and TCS.
>>>
>>>
>>> Regards,
>>>
>>> Frédéric Jouault
>>>
>>>
>>> Quentin Glineur wrote:
>>>> Hi,
>>>>
>>>> After a successful build of my TCS file, the parsing generates a
>>>> NullPointerException. I am wondering what it can be due to ?
>>>> (there is no indeterminism)
>>>>
>>>> trace :
>>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>>>
>>>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>>>
>>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>>>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>>>> at org.atl.engine.injectors.ebnf.Parser.my_Parameter(Unknown Source)
>>>> at org.atl.engine.injectors.ebnf.Parser.my_Function(Unknown Source)
>>>>
>>>> Quentin
>>
>>
>> ------------------------------------------------------------ ------------
>>
>>
>> Buildfile:
>> D:\workspaces\3.2\workspace\TCSSample\bridgeLight\Injection\ build.xml
>>
>> injection:
>> [am3.loadModel] Loading of model MM
>> [am3.loadModel] Loading of model M
>> [am3.loadModel] Warning: 1:21-1:35: could not set location of
>> M!<unnamed>, disabling further location settings.
>> [am3.loadModel] java.lang.NullPointerException
>> [am3.loadModel] at
>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.asm2E MF(ASMEMFModelElement.java:303)
>>
>> [am3.loadModel] at
>> org.atl.engine.repositories.emf4atl.ASMEMFModelElement.set(A SMEMFModelElement.java:223)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:903)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.set(EBNFInjector 2.java:442)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Parameter(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Function(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Feature(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_ContentElement(Unk nown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.my_Content(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.vbParser.main(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2$ANTLR2Wrapper.pa rse(EBNFInjector2.java:145)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:273)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:243)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:223)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.performImportati on(EBNFInjector2.java:205)
>>
>> [am3.loadModel] at
>> org.atl.engine.injectors.ebnf.EBNFInjector2.inject(EBNFInjec tor2.java:188)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:235)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.ebnfInje ction(AM3AntToolKit.java:252)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.toolkit.AM3AntToolKit.inject(A M3AntToolKit.java:260)
>>
>> [am3.loadModel] at
>> org.eclipse.gmt.am3.tools.ant.tasks.LoadModelTask.execute(Lo adModelTask.java:53)
>>
>> [am3.loadModel] at
>> org.apache.tools.ant.UnknownElement.execute(UnknownElement.j ava:275)
>> [am3.loadModel] at org.apache.tools.ant.Task.perform(Task.java:364)
>> [am3.loadModel] at
>> org.apache.tools.ant.Target.execute(Target.java:341)
>> [am3.loadModel] at
>> org.apache.tools.ant.Target.performTasks(Target.java:369)
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeSortedTargets(Project.ja va:1216)
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeTarget(Project.java:1185 )
>> [am3.loadModel] at
>> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(D efaultExecutor.java:40)
>>
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.EclipseDefaultExecutor.exe cuteTargets(EclipseDefaultExecutor.java:32)
>>
>> [am3.loadModel] at
>> org.apache.tools.ant.Project.executeTargets(Project.java:106 8)
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:706)
>>
>> [am3.loadModel] at
>> org.eclipse.ant.internal.core.ant.InternalAntRunner.run(Inte rnalAntRunner.java:457)
>>
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> [am3.loadModel] at
>> sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>> [am3.loadModel] at java.lang.reflect.Method.invoke(Unknown Source)
>> [am3.loadModel] at
>> org.eclipse.ant.core.AntRunner.run(AntRunner.java:356)
>> [am3.loadModel] at
>> org.eclipse.ant.internal.ui.launchConfigurations.AntLaunchDe legate$1.run(AntLaunchDelegate.java:230)
>>
>> [am3.loadModel] at java.lang.Thread.run(Unknown Source)
>> [am3.saveModel] Saving model M
>> BUILD SUCCESSFUL
>> Total time: 297 milliseconds
Re: [TCS]About NullPointerException [message #601943 is a reply to message #378190] Fri, 15 June 2007 09:59 Go to previous message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

> Ok, I have tried what you suggested but it did not bring any enhancement.

The enhancement is that you can remove unnecessary Boolean attributes ;-).


> Though I have noticed that the tag for My_Function is outside the
> My_Content tag (as it should) i.e :
>
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
> xmlns:_1="expressions" xmlns:_2="features">
> <My_Content>
> ...
> </My_Content>
> <_2:My_Function visibility="public" name="add"/>
> <_2:My_Parameter/>
> </xmi:XMI>
>
> If it could help your diagnostic...

This is probably caused by the error, of which it is therefore a
symptom, not a cause.


Is it possible for you to package your KM3 metamodel, TCS model, and at
least a sample and post it here, so that I can try to reproduce the problem?


Regards,

Frédéric Jouault
Re: [TCS]About NullPointerException [message #601954 is a reply to message #378191] Fri, 15 June 2007 10:21 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------070902080003070704040908
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 8bit

Here it comes !
As a matter of fact, the KM3 and the TCS have been gotten by generation
hence their form.

The test file is adapted from one of the melon project.

Regards,
Quentin

Fr
Re: [TCS]About NullPointerException [message #601980 is a reply to message #378192] Fri, 15 June 2007 14:57 Go to previous message
Frédéric Jouault is currently offline Frédéric Jouault
Messages: 572
Registered: July 2009
Senior Member
Hello,

Your problem is that the byRef and byVal enumeration literals are
spelled byref and byval in the TCS. This is strange for a generated file
;-).

Checking for this kind of problem is already in the TODO list for the
TCS2Problem transformation.


Another problem I discovered: you should use "End" "Function" not "End
Function", because End and Function are two separate keywords.


You might also be interested in the VB zoo, which uses a VisualBasic
metamodel and TCS:
http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.gmt/AM3 /org.eclipse.am3.zoos.atlanticVB/build/?root=Technology_Proj ect


Best regards,

Frédéric Jouault


Quentin Glineur wrote:
> Here it comes !
> As a matter of fact, the KM3 and the TCS have been gotten by generation
> hence their form.
>
> The test file is adapted from one of the melon project.
>
> Regards,
> Quentin
>
> Frédéric Jouault a écrit :
>> Hello,
>>
>> > Ok, I have tried what you suggested but it did not bring any
>> enhancement.
>>
>> The enhancement is that you can remove unnecessary Boolean attributes
>> ;-).
>>
>>
>> > Though I have noticed that the tag for My_Function is outside the
>> > My_Content tag (as it should) i.e :
>> >
>> > <?xml version="1.0" encoding="ISO-8859-1"?>
>> > <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
>> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
>> > xmlns:_1="expressions" xmlns:_2="features">
>> > <My_Content>
>> > ...
>> > </My_Content>
>> > <_2:My_Function visibility="public" name="add"/>
>> > <_2:My_Parameter/>
>> > </xmi:XMI>
>> >
>> > If it could help your diagnostic...
>>
>> This is probably caused by the error, of which it is therefore a
>> symptom, not a cause.
>>
>>
>> Is it possible for you to package your KM3 metamodel, TCS model, and
>> at least a sample and post it here, so that I can try to reproduce the
>> problem?
>>
>>
>> Regards,
>>
>> Frédéric Jouault
>
>
> ------------------------------------------------------------ ------------
>
> package PrimitiveTypes {
>
> datatype String;
>
> datatype Boolean;
>
> datatype Integer;
> }
>
> package fr {
>
> package obeo {
>
> abstract class My_LangElement {
> attribute comment[0-1] : String;
> attribute endLineComment[0-1] : String;
> attribute naming[0-1] : String;
> attribute elementId[0-1] : String;
> attribute write : String;
> reference typing[0-1] : My_LangElement;
> reference crossReferences[*] ordered : My_LangElement;
> }
>
> class My_Content extends My_LangElement {
> reference elements[*] ordered container : My_ContentElement;
> }
>
>
> abstract class My_ContentElement extends My_LangElement {
>
> }
>
> class My_FileAttribute extends My_ContentElement {
> attribute name : String;
> reference initialValue[1-*] ordered container : My_Expression;
> }
>
> class My_Option extends My_ContentElement {
> attribute name : String;
> attribute hasEnablement : Boolean;
> attribute enablement[0-1] : EnablementEnum;
> }
>
> abstract class My_Data {
> }
> }
>
> package features {
>
> abstract class My_Feature extends My_Data, My_ContentElement {
> }
>
> class My_Function extends My_Feature {
> -- attribute hasVisibility : Boolean;
> attribute visibility[0-1] : VisibilityEnum;
> attribute name : String;
> reference parameters[*] ordered container : My_Parameter;
> attribute return : String;
> reference statements[1-*] ordered container : My_Statement;
> }
>
> class My_Parameter extends My_Data {
> attribute isOptional : Boolean;
> -- attribute hasQualifier : Boolean;
> attribute qualifier[0-1] : QualifierEnum;
> attribute name : String;
> -- attribute hasType : Boolean;
> attribute type[0-1] : String;
> attribute hasInitialValue : Boolean;
> }
> }
>
> package statements {
>
> abstract class My_Modifier extends My_LangElement {
> }
>
> abstract class My_Statement extends My_Modifier {
> }
>
> class My_RawBody extends My_Statement {
> attribute value[0-1] : String;
> }
> }
>
> package expressions {
>
> abstract class My_Expression extends My_LangElement {
> }
>
> class My_NegativeExpression extends My_Expression {
> reference expression container : My_Expression;
> }
>
>
> abstract class My_Value extends My_Expression {
> }
>
> abstract class My_Literal extends My_Value {
> }
>
> class My_Literal_Literal extends My_Literal {
> attribute value : String;
> }
>
> class My_Literal_Number extends My_Literal {
> attribute value : String;
> }
>
> class My_Literal_Value extends My_Literal {
> attribute value : String;
> }
>
> }
>
>
> package enumerations {
>
> enumeration EnablementEnum {
> literal Off;
> literal On;
> }
>
> enumeration VisibilityEnum {
> literal private;
> literal protected;
> literal public;
> }
>
> enumeration QualifierEnum {
> literal byRef;
> literal byVal;
> }
>
> }
> }
>
>
> ------------------------------------------------------------ ------------
>
> syntax vb {
>
> primitiveTemplate numberSymbol for String using NUMBER_PATTERN :
> value = "%token%";
>
> primitiveTemplate identifierSymbol for String default using IDENTIFIER_PATTERN :
> value = "%token%";
>
> primitiveTemplate literalSymbol for String using LITERAL_PATTERN :
> value = "%token%";
>
> primitiveTemplate valueSymbol for String using VALUE_PATTERN :
> value = "%token%";
>
> primitiveTemplate bodySymbol for String using BODY :
> value = "%token%";
>
> template My_Content main :
> elements
> ;
>
> template My_ContentElement abstract
> ;
>
> template My_FileAttribute :
> "Attribute"
> name
> "="
> initialValue{separator = ","}
> ;
>
> template My_Option :
> "Option"
> name
> (isDefined(enablement) ? enablement)
> ;
>
>
> template My_Feature abstract
> ;
>
> template My_Data abstract
> ;
>
> template My_RawBody :
> value{as = bodySymbol}
> ;
>
> template My_Function
> :
> (isDefined(visibility) ? visibility)
> "Function" name "(" parameters{separator = ","} ")" "As" return statements "End Function"
> ;
>
>
> template My_Parameter :
> (isOptional ? "Optional")
> (isDefined(qualifier) ? qualifier)
> name
> (isDefined(type) ? "As" type)
> ;
>
>
> template My_Statement abstract
> ;
>
>
> template My_Expression abstract
> ;
>
>
> template My_Value abstract
> ;
>
>
> template My_Literal abstract
> ;
>
> template My_Literal_Literal :
> value{as = literalSymbol}
> ;
>
>
> enumerationTemplate EnablementEnum auto :
> #off = "Off",
> #on = "On"
> ;
>
> enumerationTemplate VisibilityEnum auto :
> #public = "Public",
> #protected = "Protected",
> #private = "Private"
> ;
>
> enumerationTemplate QualifierEnum auto :
> #byval = "ByVal",
> #byref = "ByRef"
> ;
>
>
> symbols {
> parenthesisBegin = "(";
> parenthesisEnd = ")";
> coma = ",";
> dot = ".";
> eq = "=";
> }
>
>
> lexer = "
> class vbLexer extends Lexer;
>
> options {
> k = 5;
> charVocabulary = '\\0' .. '\\u00FF';
> testLiterals = false;
> }
>
> {
>
> protected Token makeToken(int t) {
> org.atl.engine.injectors.ebnf.LocationToken ret = null;
> tokenObjectClass = org.atl.engine.injectors.ebnf.LocationToken.class;
> ret = (org.atl.engine.injectors.ebnf.LocationToken)super.makeToken (t);
> ret.setEndLine(getLine());
> ret.setEndColumn(getColumn());
> return ret;
> }
>
> }
>
> protected
> NL
> : ( '\\r' '\\n'
> | '\\r'
> | '\\n'
> )
> {newline();}
> ;
>
> WS
> : ( ' '
> | '\\t'
> | NL
> )
> { $setType(Token.SKIP); }
> ;
>
> COMMENT
> : '\\''
> (~( '\\r'|'\\n'))*
> { $setType(Token.SKIP); }
> ;
>
> NUMBER_PATTERN
> : (NUMBER_REGEX)
> ;
>
> IDENTIFIER_PATTERN options{testLiterals=true;}
> : (IDENTIFIER_REGEX)
> ;
>
> LITERAL_PATTERN
> : (LITERAL_REGEX)
> ;
>
> VALUE_PATTERN
> : ( EVAL_REGEX | DATE_REGEX)
> ;
>
> //////////////////////////////////////////////////////////// //////////
>
> protected NUMBER_REGEX
> : ('0'..'9')+
> ('.' ('0'..'9')+)?
> ('!')?
> {System.out.println(\"Number : \" + $getText);}
> ;
>
> protected ALPHA
> : 'a'..'z'
> | 'A'..'Z'
> //For Unicode compatibility (from 0000 to 00ff)
> | '\\u00C0' .. '\\u00D6'
> | '\\u00D8' .. '\\u00F6'
> | '\\u00F8' .. '\\u00FF'
> ;
>
> protected
> DIGIT
> : '0'..'9'
> ;
>
> protected IDENTIFIER_CHAR
> : ('_' | ALPHA | DIGIT | '&')
> ;
>
> protected UNDERSCORED_CHAR
> : '_' IDENTIFIER_CHAR
> ;
>
> protected IDENTIFIER_REGEX
> : (ALPHA | UNDERSCORED_CHAR)
> (IDENTIFIER_CHAR)*
> {System.out.println(\"Identifier : \" + $getText);}
> ;
>
> protected EVAL_REGEX
> : '&'(ALPHA)+('&')?
> ;
>
> protected DATE_REGEX
> : '#' (DIGIT '/')+ '#'
> ;
>
> protected LITERAL_REGEX
> : '\"' ( ~('\"'))* '\"'
> {System.out.println(\"Literal : \" + $getText);}
> ;
>
> BODY
> : ('$'(options{greedy=false;}:('\\n' {newline();}| ~ '\\n'))* '$')
> {System.out.println(\"Body : \" + $getText);}
> ;
>
>
> ";
>
> }
>
>
> ------------------------------------------------------------ ------------
>
> Attribute VB_Name = "mMelonCtls_i"
> Option Explicit
>
> Public Function g_ControlSetValue(ByRef Control As MControl, ByVal Value As Long) As Boolean
> $
> If (Control Is Nothing) Then _
> Exit Function
>
> Control.Value = Value
> g_ControlSetValue = True
> $
> End Function
>
> Public Function g_ControlGetValue(ByRef Control As MControl, ByRef Value As Long) As Boolean
> $
> If (Control Is Nothing) Then _
> Exit Function
>
> Value = Control.Value
> g_ControlGetValue = True
> $
> End Function
>
> Public Function g_SliderInit(ByRef Slider As MControl, Optional ByVal Min As Long, Optional ByVal Max As Long, Optional ByVal Value As Long) As Boolean
> $
> If (Slider Is Nothing) Then _
> Exit Function
>
> On Error Resume Next
>
> Dim ps As CSlider
>
> Err.Clear
> Set ps = Slider
> If Err.Number = 0 Then
> If Min <> -1 Then _
> ps.Min = Min
>
> If Max <> -1 Then _
> ps.Max = Max
>
> If Value <> -1 Then _
> ps.Value = Value
>
> g_SliderInit = True
> End If
> $
> End Function
Re: [TCS]About NullPointerException [message #602020 is a reply to message #378195] Mon, 18 June 2007 04:24 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

Frédéric Jouault a écrit :
Hello,

> Hello,
>
> Your problem is that the byRef and byVal enumeration literals are
> spelled byref and byval in the TCS. This is strange for a generated file
> ;-).

Yet, you are right, this is one of the only piece of my code that are
still handcrafted !

> Checking for this kind of problem is already in the TODO list for the
> TCS2Problem transformation.

Great ! As a grain of sand, it has been jamming my work for quite long
time without being quickly identifiable: so thanks for your help !

>
> Another problem I discovered: you should use "End" "Function" not "End
> Function", because End and Function are two separate keywords.
>

Ok, this one is now fixed.

> You might also be interested in the VB zoo, which uses a VisualBasic
> metamodel and TCS:
> http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.gmt/AM3 /org.eclipse.am3.zoos.atlanticVB/build/?root=Technology_Proj ect
>

Thanks a lot, I will use it as inspiration !

Regards,

Quentin

>
> Best regards,
>
> Frédéric Jouault
>
>
> Quentin Glineur wrote:
>> Here it comes !
>> As a matter of fact, the KM3 and the TCS have been gotten by
>> generation hence their form.
>>
>> The test file is adapted from one of the melon project.
>>
>> Regards,
>> Quentin
>>
>> Frédéric Jouault a écrit :
>>> Hello,
>>>
>>> > Ok, I have tried what you suggested but it did not bring any
>>> enhancement.
>>>
>>> The enhancement is that you can remove unnecessary Boolean attributes
>>> ;-).
>>>
>>>
>>> > Though I have noticed that the tag for My_Function is outside the
>>> > My_Content tag (as it should) i.e :
>>> >
>>> > <?xml version="1.0" encoding="ISO-8859-1"?>
>>> > <xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI"
>>> > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="obeo"
>>> > xmlns:_1="expressions" xmlns:_2="features">
>>> > <My_Content>
>>> > ...
>>> > </My_Content>
>>> > <_2:My_Function visibility="public" name="add"/>
>>> > <_2:My_Parameter/>
>>> > </xmi:XMI>
>>> >
>>> > If it could help your diagnostic...
>>>
>>> This is probably caused by the error, of which it is therefore a
>>> symptom, not a cause.
>>>
>>>
>>> Is it possible for you to package your KM3 metamodel, TCS model, and
>>> at least a sample and post it here, so that I can try to reproduce
>>> the problem?
>>>
>>>
>>> Regards,
>>>
>>> Frédéric Jouault
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> package PrimitiveTypes {
>>
>> datatype String;
>>
>> datatype Boolean;
>>
>> datatype Integer;
>> }
>>
>> package fr {
>>
>> package obeo {
>>
>> abstract class My_LangElement {
>> attribute comment[0-1] : String;
>> attribute endLineComment[0-1] : String;
>> attribute naming[0-1] : String;
>> attribute elementId[0-1] : String;
>> attribute write : String;
>> reference typing[0-1] : My_LangElement;
>> reference crossReferences[*] ordered : My_LangElement;
>> }
>>
>> class My_Content extends My_LangElement {
>> reference elements[*] ordered container : My_ContentElement;
>> }
>>
>>
>> abstract class My_ContentElement extends My_LangElement {
>>
>> }
>>
>> class My_FileAttribute extends My_ContentElement {
>> attribute name : String;
>> reference initialValue[1-*] ordered container : My_Expression;
>> }
>>
>> class My_Option extends My_ContentElement {
>> attribute name : String;
>> attribute hasEnablement : Boolean;
>> attribute enablement[0-1] : EnablementEnum;
>> }
>>
>> abstract class My_Data {
>> }
>> }
>>
>> package features {
>>
>> abstract class My_Feature extends My_Data, My_ContentElement
>> {
>> }
>>
>> class My_Function extends My_Feature {
>> -- attribute hasVisibility : Boolean;
>> attribute visibility[0-1] : VisibilityEnum;
>> attribute name : String;
>> reference parameters[*] ordered container : My_Parameter;
>> attribute return : String;
>> reference statements[1-*] ordered container : My_Statement;
>> }
>>
>> class My_Parameter extends My_Data {
>> attribute isOptional : Boolean;
>> -- attribute hasQualifier : Boolean;
>> attribute qualifier[0-1] : QualifierEnum;
>> attribute name : String;
>> -- attribute hasType : Boolean;
>> attribute type[0-1] : String;
>> attribute hasInitialValue : Boolean;
>> }
>> }
>>
>> package statements {
>>
>> abstract class My_Modifier extends My_LangElement
>> {
>> }
>>
>> abstract class My_Statement extends My_Modifier {
>> }
>>
>> class My_RawBody extends My_Statement {
>> attribute value[0-1] : String;
>> }
>> }
>>
>> package expressions {
>>
>> abstract class My_Expression extends My_LangElement
>> {
>> }
>>
>> class My_NegativeExpression extends My_Expression {
>> reference expression container : My_Expression;
>> }
>>
>>
>> abstract class My_Value extends My_Expression {
>> }
>>
>> abstract class My_Literal extends My_Value {
>> }
>>
>> class My_Literal_Literal extends My_Literal {
>> attribute value : String;
>> }
>>
>> class My_Literal_Number extends My_Literal {
>> attribute value : String;
>> }
>>
>> class My_Literal_Value extends My_Literal {
>> attribute value : String;
>> }
>>
>> }
>>
>>
>> package enumerations {
>>
>> enumeration EnablementEnum {
>> literal Off;
>> literal On;
>> }
>>
>> enumeration VisibilityEnum {
>> literal private;
>> literal protected;
>> literal public;
>> }
>>
>> enumeration QualifierEnum {
>> literal byRef;
>> literal byVal;
>> }
>>
>> }
>> }
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> syntax vb {
>>
>> primitiveTemplate numberSymbol for String using NUMBER_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate identifierSymbol for String default using
>> IDENTIFIER_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate literalSymbol for String using LITERAL_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate valueSymbol for String using VALUE_PATTERN :
>> value = "%token%";
>>
>> primitiveTemplate bodySymbol for String using BODY :
>> value = "%token%";
>>
>> template My_Content main :
>> elements
>> ;
>>
>> template My_ContentElement abstract ;
>>
>> template My_FileAttribute :
>> "Attribute"
>> name
>> "="
>> initialValue{separator = ","}
>> ;
>>
>> template My_Option :
>> "Option"
>> name
>> (isDefined(enablement) ? enablement)
>> ;
>>
>>
>> template My_Feature abstract ;
>>
>> template My_Data abstract ;
>>
>> template My_RawBody :
>> value{as = bodySymbol}
>> ;
>>
>> template My_Function
>> :
>> (isDefined(visibility) ? visibility)
>> "Function" name "(" parameters{separator = ","} ")" "As"
>> return statements "End Function"
>> ;
>>
>>
>> template My_Parameter :
>> (isOptional ? "Optional")
>> (isDefined(qualifier) ? qualifier) name
>> (isDefined(type) ? "As" type)
>> ;
>>
>>
>> template My_Statement abstract ;
>>
>>
>> template My_Expression abstract
>> ;
>>
>>
>> template My_Value abstract ;
>>
>>
>> template My_Literal abstract
>> ;
>>
>> template My_Literal_Literal :
>> value{as = literalSymbol}
>> ;
>>
>>
>> enumerationTemplate EnablementEnum auto :
>> #off = "Off",
>> #on = "On"
>> ;
>>
>> enumerationTemplate VisibilityEnum auto :
>> #public = "Public",
>> #protected = "Protected",
>> #private = "Private"
>> ;
>>
>> enumerationTemplate QualifierEnum auto :
>> #byval = "ByVal",
>> #byref = "ByRef"
>> ;
>>
>>
>> symbols {
>> parenthesisBegin = "(";
>> parenthesisEnd = ")";
>> coma = ",";
>> dot = ".";
>> eq = "=";
>> }
>>
>>
>> lexer = "
>> class vbLexer extends Lexer;
>>
>> options {
>> k = 5;
>> charVocabulary = '\\0' .. '\\u00FF';
>> testLiterals = false;
>> }
>>
>> {
>>
>> protected Token makeToken(int t) {
>> org.atl.engine.injectors.ebnf.LocationToken ret = null;
>> tokenObjectClass =
>> org.atl.engine.injectors.ebnf.LocationToken.class;
>> ret =
>> (org.atl.engine.injectors.ebnf.LocationToken)super.makeToken (t);
>> ret.setEndLine(getLine());
>> ret.setEndColumn(getColumn());
>> return ret;
>> }
>>
>> }
>>
>> protected
>> NL
>> : ( '\\r' '\\n'
>> | '\\r'
>> | '\\n'
>> )
>> {newline();}
>> ;
>>
>> WS
>> : ( ' '
>> | '\\t'
>> | NL
>> )
>> { $setType(Token.SKIP); }
>> ;
>>
>> COMMENT
>> : '\\''
>> (~( '\\r'|'\\n'))*
>> { $setType(Token.SKIP); }
>> ;
>>
>> NUMBER_PATTERN
>> : (NUMBER_REGEX)
>> ;
>>
>> IDENTIFIER_PATTERN options{testLiterals=true;}
>> : (IDENTIFIER_REGEX)
>> ;
>>
>> LITERAL_PATTERN
>> : (LITERAL_REGEX)
>> ;
>>
>> VALUE_PATTERN
>> : ( EVAL_REGEX | DATE_REGEX)
>> ;
>>
>> //////////////////////////////////////////////////////////// //////////
>>
>> protected NUMBER_REGEX
>> : ('0'..'9')+
>> ('.' ('0'..'9')+)?
>> ('!')?
>> {System.out.println(\"Number : \" + $getText);}
>> ;
>>
>> protected ALPHA
>> : 'a'..'z'
>> | 'A'..'Z'
>> //For Unicode compatibility (from 0000 to 00ff)
>> | '\\u00C0' .. '\\u00D6'
>> | '\\u00D8' .. '\\u00F6'
>> | '\\u00F8' .. '\\u00FF'
>> ;
>>
>> protected
>> DIGIT
>> : '0'..'9'
>> ;
>>
>> protected IDENTIFIER_CHAR
>> : ('_' | ALPHA | DIGIT | '&')
>> ;
>>
>> protected UNDERSCORED_CHAR
>> : '_' IDENTIFIER_CHAR
>> ;
>>
>> protected IDENTIFIER_REGEX
>> : (ALPHA | UNDERSCORED_CHAR)
>> (IDENTIFIER_CHAR)*
>> {System.out.println(\"Identifier : \" + $getText);}
>> ;
>>
>> protected EVAL_REGEX
>> : '&'(ALPHA)+('&')?
>> ;
>>
>> protected DATE_REGEX
>> : '#' (DIGIT '/')+ '#'
>> ;
>>
>> protected LITERAL_REGEX
>> : '\"' ( ~('\"'))* '\"'
>> {System.out.println(\"Literal : \" + $getText);}
>> ;
>>
>> BODY
>> : ('$'(options{greedy=false;}:('\\n' {newline();}| ~ '\\n'))* '$')
>> {System.out.println(\"Body : \" + $getText);}
>> ;
>>
>>
>> ";
>>
>> }
>>
>>
>> ------------------------------------------------------------ ------------
>>
>> Attribute VB_Name = "mMelonCtls_i"
>> Option Explicit
>>
>> Public Function g_ControlSetValue(ByRef Control As MControl, ByVal
>> Value As Long) As Boolean
>> $
>> If (Control Is Nothing) Then _
>> Exit Function
>>
>> Control.Value = Value
>> g_ControlSetValue = True
>> $
>> End Function
>>
>> Public Function g_ControlGetValue(ByRef Control As MControl, ByRef
>> Value As Long) As Boolean
>> $
>> If (Control Is Nothing) Then _
>> Exit Function
>>
>> Value = Control.Value
>> g_ControlGetValue = True
>> $
>> End Function
>>
>> Public Function g_SliderInit(ByRef Slider As MControl, Optional ByVal
>> Min As Long, Optional ByVal Max As Long, Optional ByVal Value As Long)
>> As Boolean
>> $
>> If (Slider Is Nothing) Then _
>> Exit Function
>>
>> On Error Resume Next
>>
>> Dim ps As CSlider
>>
>> Err.Clear
>> Set ps = Slider
>> If Err.Number = 0 Then
>> If Min <> -1 Then _
>> ps.Min = Min
>>
>> If Max <> -1 Then _
>> ps.Max = Max
>>
>> If Value <> -1 Then _
>> ps.Value = Value
>>
>> g_SliderInit = True
>> End If
>> $
>> End Function
Re: [TCS]About NullPointerException [message #602715 is a reply to message #378260] Thu, 19 July 2007 10:25 Go to previous message
Eclipse User
Originally posted by: remi.viaux.mbda-systems.com

Hi Quentin,

Regenerate the ecore metamodel from you're km3 metamodel.
I had the same error that you Null pointer exception, and I had just
modified km3 file and forget to udate the ecore one.
After the regeneration, no more error appears

It's maybe another problem that you have, but just try ; it's easy to
check ^^

Regards,

Remi Viaux
Re: [TCS]About NullPointerException [message #602721 is a reply to message #378515] Thu, 19 July 2007 11:13 Go to previous message
Eclipse User
Originally posted by: quentin.glineur.obeo.fr

This is a multi-part message in MIME format.
--------------080607090607080802030600
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit

Hi Remi,

I am sorry but I do not understand your post :-/

If you are trying to get an injector from the files I have posted, be
sure to fix them the way Frederic told (i.e. correct the literal names
(byRef, byVal) either in KM3 or in TCS).

Regards,

Quentin GLINEUR

Remi Viaux a
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