[Newcompiler] Changing just a part of a method

[Mathieu Suen]

So _ shouldn't be  used anymore.
But I have publish a new AST version so the _ are kept.

	Mth



On Jul 27, 2007, at 2:51 PM, Damien Cassou wrote:

> 2007/7/27, Mathieu Suen <mathieusuen at yahoo.fr>:
>> Try to use the SqueakParser in the NewParser package.
>> Could you give me your code to let me try.
>> Thanks
>
> CompiledMethod>>linesOfCode before change:
>
> linesOfCode
> 	"An approximate measure of lines of code.
> 	Includes comments, but excludes blank lines."
> 	| strm line lines |
> 	lines _ 0.
> 	strm _ ReadStream on: self getSource.
> 		[strm atEnd] whileFalse:
> 			[line _ strm upTo: Character cr.
> 			line isEmpty ifFalse: [lines _ lines+1]].
> 	^lines
>
>
> CompiledMethod>>linesOfCode after change using RBParser:
>
>  linesOfCode
> 	"An approximate measure of lines of code.
> 	Includes comments, but excludes blank lines."
>
> 	| strm line lines |
> 	lines := 0.
> 	strm := self getSource readStream.
> 	[strm atEnd] whileFalse:
> 			[line := strm upTo: Character cr.
> 			line isEmpty ifFalse: [lines := lines + 1]].
> 	^ lines
>
> All _ has been changed to := and I don't want this.
>
> The code to change the method is:
>
> rewriteRule := ParseTreeRewriter new.
> rewriteRule replace: 'ReadStream on: ``@Expression' with:
> '``@Expression readStream'.
> tree := CompiledMethod parseTreeFor: #linesOfCode.
> rewriteRule executeTree: tree.
> rewriteRule tree printString.
>
>
> I understand why this is like this: once you have a tree, you can't go
> back to previous formatting. But is there a workaround?
>
> -- 
> Damien Cassou


	

	
		
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