ext Alexey Proskuryakov wrote:
On 29.04.2010, at 10:30, Adam Barth wrote:
Yeah, without seeing the consequence on the generated code, it can be
very difficult to review changes to the code generator.
Yes, that's a useful goal. Since an old version of code generating
scripts is always in .svn directory (or its git equivalent), it should
be possible to generate "before" and "after" versions of
DerivedSources directory, and diff these. Such a tool would be useful
and exciting.
Definitely. The generator for Qt Jambi (Qt bindings for Java,
http://qt.gitorious.org/qt-jambi) has a --diff option that produces a
colorized diff against the output of the previous run. It's a great,
simple way of building confidence that the generator change only had the
impact you intended (no guarantees of course, due to platform
differences, feature permutations etc.).
In my experience such a feature is like "turning on the lights" (or
cranking up the generator, to use a direct analogy).
Kent
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