[stringtemplate-interest] caching getter lookup speedup

[Terence Parr]

Yeah, looking for one more would be easy enough and since we cache now, no cost.  Ok, i'll add.  so a.xxx looks for hasXxx()?

Ter
On Dec 30, 2010, at 11:05 AM, Jim Idle wrote:

> I think that looking for (bool)hasXXXX is useful though.
> 
> Jim
> 
>> -----Original Message-----
>> From: stringtemplate-interest-bounces at antlr.org [mailto:stringtemplate-
>> interest-bounces at antlr.org] On Behalf Of Terence Parr
>> Sent: Monday, December 27, 2010 12:10 PM
>> To: stringtemplate-interest at antlr.org List
>> Subject: Re: [stringtemplate-interest] caching getter lookup speedup
>> 
>> howdy.  I'm nervous about allowing random method names even w/o args.
>> I've resisted for 10 years; i should probably stick with it.  useful
>> but too easily abused.
>> Ter
>> 
>> On Dec 27, 2010, at 11:35 AM, Udo Borkowski wrote:
>> 
>>> Good work!
>>> 
>>> I guess I can now drop my PropertyAdapter stuff and switch to the new
>> ModelAdaptor feature.
>>> 
>>> 
>>> Just a minor thing: when looking for a "by method" implementation of
>> a property you check for the methods "getXXX" and "isXXX". While this
>> is exactly as defined for JavaBeans I found it useful also to check for
>> a method named "XXX". This will also cover properties like "hasFocus",
>> "hasParameters", or even "initialValue" implemented by methods
>> "hasFocus()", "hasParameters()" or "initialValue()".
>>> 
>>> With this extension to the semantic of the ObjectModelAdapter guys
>> like Rafael would not need to write their own Adapter but could just
>> refer to every parameterless method of the "bean" as a "property" in
>> their template.
>>> 
>>> Apropos "parameterless": After finding a method (in getProperty())
>> only parameterless object methods should be accepted.
>>> 
>>> Udo
>>> 
>>> 
>>> 
>>> On 26.12.2010, at 20:59, Terence Parr wrote:
>>> 
>>>> ok, added benchmarking code to v4.  Tested speed with and w/o
>> Method/Field caching.  about 10x improvement.  Average units of work
>> went from 32.77 to 395.22. This is a micro benchmark for property
>> lookup.
>>>> 
>>>> timeSimplePropsOfArgs  :   395.24  402.13  399.98  369.82  408.94 =
>> 395.22 units of work / ms
>>>> 
>>>> timeSimplePropsOfArgs  :    32.63   32.74   32.68   32.95   32.83 =
>> 32.77 units of work / ms
>>>> 
>>>> Now I'm optimizing local attribute (arg) access.  Sam Harwell will
>> be happy :)  I'll check those numbers after impl.
>>>> 
>>>> Ter
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