| Commit message (Collapse) | Author | Age | Files | Lines |
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Ran into a crash here while loading Caleb's deck-of-war program. Not
bothering debugging it..
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Reorganize further to make edit/008-sandbox-test more self-contained.
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If you restore 2 sandboxes, the first render was setting
response-starting-row-on-screen on both, without ever rendering a
response. If the lower sandbox contained a print and rendered the screen
instead of the response, the original response-starting-row-on-screen
was never reset. If the process of running the sandboxes caused the
lower sandbox's title bar to move below the now-stale
response-starting-row-on-screen[1], editing the lower sandbox no longer
works.
[1] (Either because the upper sandbox prints to screen as well (causing
the first F4 to move the lower sandbox down by several lines), or
because a fresh sandbox is created with several lines before the first
F4 is hit.)
Current solution: never set response-starting-row-on-screen during
reload (or otherwise when there's no response).
This is hard to test right now because 'restore' is not a tested
interface, and I can't come up with another situation where the
response-starting-row-on-screen goes stale. So I'm now trying to keep
all changes to response-starting-row-on-screen close together. Another
idea is to add a check that the click row lies below the
response-starting row *and* above the start of the next sandbox. (But
what if there's no next sandbox?)
(This bug is really a regression, introduced last Sep in 2163.)
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Moving back to wrapped line was overflowing the right margin.
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My transform pipeline ignores empty recipes, but when I specialized
shape-shifting ones I forgot that check.
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I was finding it hard to wrap around the directionality of calls with
'lhs' and 'rhs'. Seems to work better with 'to' and 'from'. Let's see.
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This uncovered a bug where I've been forgetting the directionality of
arguments to types_coercible().
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When we stash a value, mu does several levels of work for us:
a) First it inserts instructions above the stash to convert the value to
text using to-text-line.
b) to-text-line calls to-text. Both are shape-shifting, so multiple
levels of specialization happen.
To give a good error message, we track the 'stack' of current
specializations at the time of the error, and also check if the
offending instruction at the top-most level looks like it was inserted
while rewriting stash instructions.
Manual example (since booleans can't be stashed at the moment):
x:boolean <- copy 1/true
stash x
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Drop yet another source of perturbance in traces.
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I spent the longest time trying to understand what bug 2268 fixed. But
it's being tested now.
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Somehow this never transferred over from the Arc version until now.
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I'd feared that the refcount errors in the previous commit meant there
was a bug in my ref-counting, so I temporarily used new variables rather
than reusing existing ones. But it turns out the one remaining place
memory corruption can happen is when recipes don't use default-scope and
so end up sharing memory. Don't I have a warning for this?
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When I first forked it from the edit/ app, I wasn't sure how to deal
with changing the recipe side when the only way the program accesses it
is with the untestable 'restore' hack. Now we introduce a little hook
into event-loop and pass in any updated recipe side directly.
In the process I've cleaned up several minor stylistic inconsistencies
between edit/ and sandbox/ apps.
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Thanks Caleb Couch.
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Caused by 2591.
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Pretty hacky fix: we simply suppress static dispatch for main.
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Unfortunate that our type system requires this to be explicit..
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Is this a violation of our requirement to always treat ingredients as
immutable? We shouldn't be using it much anyway..
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Finish 2595.
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Reading http://www.jonathanturner.org/2016/01/rust-and-blub-paradox.html,
I realize there's nothing currently stopping mu programs from taking a
unique (non-shared) address into a shared allocation, abandoning the
allocation and being left with an invalid address. No fix for this yet,
but let's try to minimize its effect by limiting lifetimes of unique
addresses. We really should only be using them to write to array or
container elements.
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This required completely redesigning scrolling.
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I'm now thinking about how to support scrolling on the sandbox side.
Caleb's idea is to use down-arrow inside the sandbox editor, and then
"scroll off" the editor to the top of each successive sandbox. I think
I'll reserve the white background as the cursor color in that situation.
I wonder if I should just undo all the support for sandbox labels since
yesterday. Labels are perhaps superfluous once I support scrolling and
reorder sandboxes to always throw ones with errors up top. But then you
can end up scrolling through lots of tests without any sense of how far
down you are. So the other approach is to keep labels and try to keep
them stable, not reorder them.
Looking further ahead I'm going to need a way to jump to a specific
sandbox. Maybe instead of reordering sandboxes I should just
automatically render from the first sandbox with error. Maybe show the
number of failed sandboxes in the status instead of the index of the
first failure.
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