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Improved ParseHelper suggestion [message #891878]

Tue, 26 June 2012 12:12

Vlad Dumitrescu

Messages: 431
Registered: July 2009
Location: Gothenburg

Senior Member

Hi,

I found it much easier to write unit tests with an wrapper around ParseHelper, where I can add markers in the source code and refer to the objects at that location.

In my simple implementation I can write

parser.parse("some §code here §and here")

where '§' is the marker, and the result is a pair (parsed code, list of marker offsets). Then a helper method helps retrieve the objects at each offset, with help from NodeModelUtils.findLeafNodeAtOffset.

I thought I'd mention it because it might be useful enough to include something like that in the Xtext junit support. I can of course provide code, but it's simple enough that getting through the IP validation process is overkill.

best regards,
Vlad

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