| Commit message (Collapse) | Author | Age | Files | Lines |
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Stop requiring jump instructions to explicitly provide a ':label' type
for jump targets.
This has been a source of repeated confusion for my students:
a) They'd add the ':label' to the label definition rather than the
jump target (label use)
b) They'd spend time thinking about whether the initial '+' prefix was
part of the label name.
In the process I cleaned up a couple of things:
- the space of names is more cleanly partitioned into labels and
non-labels (clarifying that '_' and '-' are non-label prefixes)
- you can't use label names as regular variables anymore
- you can infer the type of a label just from its name
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Redo commit 3457.
Basically there were 3 unicode characters we changed back then:
solid horizontal line: 9473 -> 9472
fuzzy horizontal line: 9480 -> 9548
fuzzy vertical line: 9482 -> 9550
The solid horizontal line has no issues, so we just redo it here.
For the other two, we'll perform the substitution only when rendering
html. That gives us the best of both worlds: the scenario screens render
right in html, and alt-tabbing continues to be snappy when running the
edit/ app.
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Revert commit 3457, where I switched the unicode characters used in the
edit/ app to something that doesn't render double-wide in html. It turns
out that the new unicode characters made iTerm2 sluggish in alt-tabbing
between windows. (Commit 3488 only fixed the screen-clearing issue.)
I haven't reverted the html files. I'm going to redo commit 3457 next so
the html files continue to render like they do now.
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Switch around some unicode characters in the edit/ app so that it
renders more cleanly in html (with monospace fonts).
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Ugly that we didn't need 'screen' to provide a type in scenarios
(because assume-screen expands to a definition of 'screen') but we did
need a type for 'console'. Just never require types for special names in
scenarios.
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A long-standing problem has been that I couldn't spread code across
'run' blocks because they were separate scopes, so I've ended up making
them effectively comments. Running code inside a 'run' block is
identical in every way to simply running the code directly. The 'run'
block is merely a visual aid to separate setup from the component under
test.
In the process I've also standardized all Mu scenarios to always run in
a local scope, and only use (raw) numeric addresses for values they want
to check later.
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Well, almost. I can't use them in some places in C++ where I'm just
creating a temporary reagent without passing it through transforms. Like
in some unit tests. I can't use them in memory-should-contain.
And there's one remaining bug: I can't use abbreviations in a couple of
places in 075channel.mu.
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Process type abbreviations in function headers.
Still a couple of places where doing this causes strange errors. We'll
track those down next.
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Process type abbreviations in container definitions.
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In the process I've uncover a couple of situations we don't support type
abbreviations yet. They're next.
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This is part of efforts to allow students to transition gradually from
the sandbox to running programs directly on the commandline, writing
real scenarios, etc. Running on the commandline requires 'main', but
overriding 'main' would mess up edit/ which is itself a Mu program.
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This required the fix of 3051 to first-class recipe support, and will
next enable us to keep the cursor from moving in response to resize
events.
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When I floor the down-arrow too much, don't scroll unnecessarily off the
bottom of the screen. But *do* scroll if there's errors to show.
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Doesn't work as advertised yet. This is just the render piece, and
fixing all the tests.
I've been careful to try to break tests for edit once I implement the
button. Delete I can't ensure will break afterwards. Remember to test
clicking on multiple places on the menu.
Managing the screens is starting to grow onerous; maybe we need
something called normalize which clears some things. But the sandbox
menu can be on arbitrary lines..
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Clean up this helper before we start redoing sandbox menubars.
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The actual fix is in the layer rewriting literal strings.
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In the process I've also simplified the sandbox/ app. Since it's
impossible for sandbox editors to span multiple pages, we can drop all
scroll support altogether.
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This had been broken ever since 2854, because we can't write tests for
restore-snapshots at the moment.
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Now that we no longer have non-shared addresses, we can just always
track refcounts for all addresses.
Phew!
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Phew!
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I'm dropping all mention of 'recipe' terminology from the Readme. That
way I hope to avoid further bike-shedding discussions while I very
slowly decide on the right terminology with my students.
I could be smarter in my error messages and use 'recipe' when code uses
it and 'function' otherwise. But what about other words like ingredient?
It would all add complexity that I'm not yet sure is worthwhile. But I
do want separate experiences for veteran programmers reading about Mu on
github and for people learning programming using Mu.
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We're still not done. Layer 60 doesn't yet handle variables in
surrounding spaces. There's probably other issues..
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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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Somehow this never transferred over from the Arc version until now.
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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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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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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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