[antlr-interest] ANTLR Java Bytecode Generator Example

[bill punch]

Sorry to bother. I was having the same problem but I'm not quite getting
what the fix is .Should the entire init stuff be commented out as in

; public Calc() { super(); } // calls java.lang.Object()
;.method public <init>()V
;   aload_0
;   invokenonvirtual java/lang/Object/<init>()V
;   return
;.end method

or something else? Thanks for any help.

      >>>bill<<<


On 12/29/10 7:04 AM, Hani Sayyid wrote:
> I fixed the issue. I just had to remove the <init> attribute
> from ByteCode.stg. In the PDF version of the book, it it is correct. But if
> you download the code from this link:
> http://media.pragprog.com/titles/tpantlr/code/templates/generator/2pass/ByteCode.stg
>
> or the zip/tar file on the book's website, 2 extra and useless <init>
> attributes are included in the stg file.
>
> Regards.
> -------
>
> Hi,
>
> I'm trying to run the files in \templates\generator\2pass. I haven't changed
> anything code related. I created a new project in Eclipse, added the files
> in a new package, and compiled them. They compiled fine, but when I give
> them any input like 2+4*3, they give the following error:
>
> Exception in thread "main" java.util.NoSuchElementException: no such
> attribute: init in template context [jasminFile]
> at
> org.antlr.stringtemplate.StringTemplate.checkNullAttributeAgainstFormalArguments(StringTemplate.java:1311)
> at
> org.antlr.stringtemplate.StringTemplate.getAttribute(StringTemplate.java:684)
> at
> org.antlr.stringtemplate.language.ActionEvaluator.attribute(ActionEvaluator.java:360)
> at
> org.antlr.stringtemplate.language.ActionEvaluator.expr(ActionEvaluator.java:136)
> at
> org.antlr.stringtemplate.language.ActionEvaluator.action(ActionEvaluator.java:84)
> at org.antlr.stringtemplate.language.ASTExpr.write(ASTExpr.java:149)
> at org.antlr.stringtemplate.StringTemplate.write(StringTemplate.java:705)
> at
> org.antlr.stringtemplate.StringTemplate.toString(StringTemplate.java:1670)
> at
> org.antlr.stringtemplate.StringTemplate.toString(StringTemplate.java:1661)
> at strt.Test.main(Test.java:37)
>
> Is there something missing in the code or I'm doing something wrong?
>
> Regards.
>
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