| Commit message (Collapse) | Author | Age | Files | Lines |
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At the lowest level I'm reluctantly starting to see the need for errors
that stop the program in its tracks. Only way to avoid memory corruption
and security issues. But beyond that core I still want to be as lenient
as possible at higher levels of abstraction.
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Unbelievable that this hitherto-unanticipated test passed so easily.
Even though I'm simply bolting on special cases in an ad hoc manner,
this isn't too shabby.
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*Extremely* ugly. I need to use better variable names around new
waypoints.
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Now duplex-list is fully non-generic and only works with characters. But
we'll fix that in a bit..
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Already I'm finding type errors in the programming environment.
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This came last because we had to ensure all primitives are covered.
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Always show recipe name where error occurred. But don't show internal
'interactive' name for sandboxes, that's just confusing.
What started out as warnings are now ossifying into errors that halt all
execution. Is this how things went with C and Unix as well?
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Front-loads it a bit more than I'd like, but the payoff is that other
recipes will now be able to describe the type checks right next to their
operation.
I'm also introducing a new use of /raw with literals to indicate unsafe
typecasts.
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Follow-up to 2147, which switched transform_all to only run once, after
loading all layers.
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Finally terminate the experiment of keeping debug prints around. I'm
also going to give up on maintaining counts.
What we really need is two kinds of tracing:
a) For tests, just the domain-specific facts, organized by labels.
b) For debugging, just transient dumps to stdout.
b) only works if stdout is clean by default.
Hmm, I think this means 'stash' should be the transient kind of trace.
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Adjust spaces in 'stash'.
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Not strictly necessary, but it might help me stage the introduction of
arrays and 'new'.
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This can happen if 'canonize' fails. Make sure it doesn't kill mu.
Thanks Caleb Couch.
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More friendly way to 'stash' stuff in the trace so that you can toggle
lines of code to see their stashed traces.
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Standardize test names.
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Still need to fix all the todo's in edit.mu dealing with scrolling.
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Still iterating on the right way to handle incorrect number of
ingredients. My first idea of creating null results doesn't really work
once they're used in later instructions. Just add a warning at one place
in the run loop, but otherwise only add products when there's something
to save in them.
Undoes some work around commit 1886.
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For example:
x:number <- index y:address:array:number, 3
(forgetting to do a lookup)
Thanks Caleb Couch.
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First step to reducing typing burden. Next step: inferring types.
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Also standardized warnings.
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More verbose, but it saves trouble when debugging; there's never
something you thought should be traced but just never came out the other
end.
Also got rid of fatal errors entirely. Everything's a warning now, and
code after a warning isn't guaranteed to run.
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Eventually we might be able to get rid of die entirely.
This is just a preliminary stab at a random error. In the process I ran
into two issues that have impeded debugging before:
a) Naming conflicts within scenarios are a real no-no. I need to warn on
them, but the rules are getting complicated:
Always print warnings on redefine
But not in interactive mode
Or in scenarios checking warning behavior
Unless the scenario recipe itself is overridden
b) Now that we've added collect_layers and a long time can go between
traces, debugging is a minefield because trace lines don't print to
screen immediately after they're created. Need to do something about
that. Maybe explicitly trigger collection by tracing '\n' or something.
These are the next two items on my todo list.
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I was counting locations when I should have been counting elements.
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Current model: you click on something to put it on the editor at the top
of the column. Worth a shot.
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It comes up pretty early in the codebase, but hopefully won't come up
in the mu level until we get to higher-order recipes. Potentially
intimidating name, but such prime real estate with no confusing
overloadings in other projects!
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For starters start making the test fail when building until layer 41.
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