Hopefully the following example will help you some. Be sure you have the Method checkbox checked when you click the Search or Replace buttons.
myTestClass | myTestMethod
| one two three |
one := 'one'.
two := 'two'.
three := 'three'.
Transcript show: one , two , three
Search For:
`methodName
| `@temps |
`@.setupVariables.
Transcript show: `@one, `@two, `@three
Replace With:
`methodName
| `@temps |
`@.setupVariables.
Transcript show: `@one.
Transcript show:`@two.
Transcript show: `@three
The pieces of the rewrite code that I found confusing at first was the @ sign and statement matching.
The @ symbol acts as a wild card for the receiver. Try the following 2 statements and observe how they work differently in your image:
`rcvr ifTrue:[`@aTrueBlock]
`@rcvr ifTrue:[`@aTrueBlock]
Statement matching acts as a wildcard for 0 to many lines of code. The syntax for one line is `.stmt. or spelled out in words <tilde><period><variable name><period>. The syntax for multiples line is `@.stmt. or spelled out in words <tilde><at><period><variable name><period>. I included a statement match for setting up the variables in the example above. `@.setupVariables. will match the 3 lines setting up the 3 temp variables named one, two and three.
Hope this helps,
Brian
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On Behalf Of Thomas Schrader
Sent: Monday, August 24, 2009 1:01 PM
To:
[hidden email]
Subject: [vwnc] RewriteCodeTool does not rewrite recursively
Hi everybody,
I'm learning the rewrite tool in VW 7.6 and couldn't get clear how to rewrite code recursively.
What do I miss? For example for the method
someClass#recursiveShow
| some temp variables |
Transcript show: 'one' , ' two' , ' three'
it didn't work to replace
``@rcvr show: ``@object1 , ``@object2
by
``@rcvr show: ``@object1; show: ``@object2
This only found one match and didn't recurse anywhere.
Also, searching for
| `@temp |
didn't find anything in that method ...
Any enlightenments are warmly welcome
Thomas J. Schrader
--
mailto thomas j schrader at web de
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