[stringtemplate-interest] What compiles to : Bytecode.INSTR_LOAD_ATTR ?

[Collin Fagan]

It got me on the right track. I now have a template that will get all it's
attributes from a Spring ApplicationContext.

So now I can do :

main() ::= <<

<springBean.value>

>>

Where springBean is the name of the bean in the ApplicationContext. So now I
can dependency inject a template attribute.

Next is jsr223 (scripting) support I think.

Collin

On Sun, Sep 4, 2011 at 5:05 AM, Udo Borkowski <Udo.Borkowski at gmx.de> wrote:

> Hi Colin,
> little typo:
>
>
>
> instead of
>
>         group.defineTemplate("main", "string", "{<string.q>}");
>
>
> just write
>
>         group.defineTemplate("main", "{<string.q>}");
>
>
>
> and it will generate an INSTR_LOAD_ATTR
>
> Udo
>
>
> P.S. The relevant ST4 code is located in
> public void refAttr(Token templateToken, CommonTree id)
>
>
>
> On 04.09.2011, at 11:53, Udo Borkowski wrote:
>
> Hi Colin,
>
> instead of
>
>         group.defineTemplate("main", "string", "{<string.q>}");
>
>
> just write
>
>         group.defineTemplate("main", "{<string.q>}");
>
>
>
> and it will generate an INSTR_LOAD_LOCAL
>
> Udo
>
>
> On 03.09.2011, at 14:30, Collin Fagan wrote:
>
> Hi Everyone,
>
> In my (probably misguided) quest to inject attributes into the scope of a
> template I've overridden the getAttribute method on Interpreter. This method
> call gets invoked when the Interpreter runs into Bytecode.INSTR_LOAD_ATTR.
> My problem is that my simple test never generates this bytecode. It only
> generates Bytecode.INSTR_LOAD_LOCAL.
>
> Does anyone know what I have to do to generate Bytecode.INSTR_LOAD_ATTR?
>
>
> Thanks,
>
> Collin
>
>
> Here is my experimental code:
>
> /**
>  *
>  * @author collin
>  */
> public class Exp {
>
>     private class ExtInterpreter extends Interpreter {
>
>         public ExtInterpreter(STGroup group, Locale locale,
>                 ErrorManager errMgr, boolean debug) {
>             super(group, locale, errMgr, debug);
>             // TODO Auto-generated constructor stub
>         }
>
>         @Override
>         public Object getAttribute(ST self, String name) {
>             System.out.println(name);
>             return super.getAttribute(self, name);
>         }
>     }
>
>     @Test
>     public void testStaticMethodAddForString() {
>         STGroup group = new STGroup();
>         group.defineTemplate("main", "string", "{<string.q>}");
>         ST mainTemplate = group.getInstanceOf("main");
> //        mainTemplate.add("string", "this is my test string");
>
>         Interpreter interp = new
> ExtInterpreter(group,Locale.getDefault(),group.errMgr,false);
>         StringWriter stringWriter = new StringWriter();
>         STWriter wr = new AutoIndentWriter(stringWriter);
>         wr.setLineWidth(STWriter.NO_WRAP);
>         interp.exec(wr, mainTemplate);
>         System.out.print(stringWriter.toString());
>     }
> }
>
>
>
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>
>
>
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