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It also seems useful that the number maps to the name of the file the
sandbox is saved in. However this mapping is currently a happy accident
and not actually tested.
I'm starting to switch gears and help make the editor useable with
many many sandboxes. This is just the first step of several.
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This is the one major refinement on the C programming model I'm planning
to introduce in mu. Instead of Rust's menagerie of pointer types and
static checking, I want to introduce just one new type, and use it to
perform ref-counting at runtime.
So far all we're doing is updating new's interface. The actual
ref-counting implementation is next.
One implication: I might sometimes need duplicate implementations for a
recipe with allocated vs vanilla addresses of the same type. So far it
seems I can get away with just always passing in allocated addresses;
the situations when you want to pass an unallocated address to a recipe
should be few and far between.
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Still can't print non-integer numbers, so this is a bit hacky.
The big consequence is that you can't print literal characters anymore
because of our rules about how we pick which variant to statically
dispatch to. You have to save to a character variable first.
Maybe I can add an annotation to literals..
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- notes
bug in edit/ triggers in immutable but not master branch
bug triggered by changes to layer 059: we're finding an unspecialized call to 'length' in 'append_6'
hard to debug because trace isn't complete
just bring out the big hammer: use a new log file
length_2 from recipes.mu is not being deleted (bug #1)
so reload doesn't switch length to length_2 when variant_already_exists (bug #2)
so we end up saving in Recipe for a primitive ordinal
so no valid specialization is found for 'length' (bug #3)
why doesn't it trigger in a non-interactive scenario?
argh, wasn't checking for an empty line at end. ok, confidence restored.
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No more bugs; phew.
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Not entirely happy with this. Maybe we'll find a better name. But at
least it's an improvement.
One part I *am* happy with is renaming string-replace to replace,
string-append to append, etc. Overdue, now that we have static dispatch.
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Great that it just worked after the previous commit.
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Fix the drawback in the previous commit: if an ingredient is just a
literal 0 we'll skip its type-checking and hope to map type ingredients
elsewhere.
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I was failing to specialize calls containing literals. And then I had to
deal with whether literals should map to numbers or characters. (Answer:
both.)
One of the issues that still remains: shape-shifting recipes can't be
called with literals for addresses, even if it's 0.
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If a name repeats between ingredients, we raise an error.
If a name repeats across ingredients and products, every call should
share the same name across the corresponding ingredients and products.
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Introducing a new 'newlayer' tag like 'todo', to record places where a
nascent new layer might be starting to bud off.
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Now we can collect all traces, just modulating the depth.
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We still can't check ingredient types, and even this is still a run-time
check. We'll need to start tracking recipe signatures at some point.
I've had to introduce a hack called /skiptypecheck. Time to get generics
working.
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Thanks Jack and Caleb Couch for the idea.
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`render-string` (and `render-code-string`; ugh) should start a new line
after, not before, like everybody else.
I've been meaning to fix this for a long time, but now I have to, to
move the warnings fields out of early layers.
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To run just until say layer 6, say this:
$ ./mu test edit/00[0-6]*
The layers are not perfect yet; there might be a few things (like the
warning fields) that need to move to a later layer.
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Now you can bring up the programming environment by saying:
$ mu edit
The files under edit aren't yet *layers*, though, they have a few
dependencies that we need to clean up.
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