some trigger updates #25
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…y selected trigger
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A few minor suggestions. I think we had also discussed updating the README or STYLE file with a note along the lines of "The {:trigger} annotations used in the standard library are an advanced topic and should not be needed when starting out on Dafny projects."
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Cool, thanks for the changes! |
| /* Dafny selected triggers: {x in xs}, {x in m}, {x in m'} */ | ||
| ensures forall x {:trigger x in m'} :: x in m' ==> x in m && x !in xs |
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The trigger in the other direction (that is, x in m) seems equally useful to me. Is there a reason not to include it?
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Since the ensures is an implication, we might only want the x in m'? My limited understanding is that we are ensuring the properties of m', rather than the original m. So might not be necessary to invoke this fact every time we see the original map.
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@RustanLeino I believe Yi has addressed all of the issues you raised. Is this ready to be merged? |
removed some tiggers that repeats dafny's selection
added some comments for dafny selected trigger