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* 3870 - seldom draw both sides of edit/Kartik K. Agaram2017-05-201-7/+14
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* 3866Kartik K. Agaram2017-05-191-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Yet another bugfix, this time in just the sandbox/ app: open sandbox/ with empty lesson/ directory type 'a' press backspace cursor was not moving left Now fixed. Turns out the sandbox/ app hadn't been working right since commit 3854. (Which ironically was a revert but clearly didn't revert enough; the last truly good commit was 3823, and we're still clawing our way back to the sunlight.) The issue in this case was that commit 3853 disabled update-cursor in some situations when it shouldn't have. To be safe, just always update-cursor one very event. I should probably reorganize this in edit/ as well, but it's not necessary for this particular bug. --- Incidentally, as part of my git bisecting I realized that the bug fixed in the trace browser as part of commit 3862 was very old: press '/' press some key press ctrl-u to erase press some key = out of bounds string access
* 3865Kartik K. Agaram2017-05-191-1/+0
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* 3861 - screen untouched when entering console modeKartik K. Agaram2017-05-181-0/+1
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* 3860 - stop buffering the screen in termboxKartik K. Agaram2017-05-181-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To achieve this we have to switch to a model of the screen in termbox that is closer to the underlying terminal. Before: a screen is a grid of characters writing out of bounds does nothing After: a screen is a scrolling raster of characters writing out of bounds wraps to next line and scrolls if necessary To move to the new model, it was essential that I migrate my fake screen at the same time to mimic it. This is why the first attempt (commit 3824) failed (commit 3858). This is also why this commit can't be split into smaller pieces. The fake screen now 'scrolls' by rotating screen lines from top to bottom. There's still no notion of a scrollback buffer. The newer model is richer; it permits repl-like apps that upstream termbox can't do easily. It also permits us to simply use `printf` or `cout` to write to the screen, and everything mostly works as you would expect. Exceptions: a) '\n' won't do what you expect. You need to explicitly print both '\n' and '\r'. b) backspace won't do what you expect. It only moves the cursor back, without erasing the previous character. It does not wrap. Both behaviors exactly mimic my existing terminal's emulation of vt100. The catch: it's easy to accidentally scroll in apps. Out-of-bounds prints didn't matter before, but they're bugs now. To help track them down, use the `save-top-idx`, `assert-no-scroll` pair of helpers. An important trick is to wrap the cursor before rather after printing a character. Otherwise we end up scrolling every time we print to the bottom-right character. This means that the cursor position can be invalid at the start of a print, and we need to handle that. In the process we also lose the ability to hide and show the screen. We have to show the prints happening. Seems apt for a "white-box" platform like Mu.
* 3857Kartik K. Agaram2017-05-131-12/+0
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* 3856Kartik K. Agaram2017-05-131-0/+1
| | | | | Bugfix on commit 3853: clear `render-all-on-no-more-events` once you've actually run the `render-all`.
* 3854Kartik K. Agaram2017-05-131-14/+17
| | | | Revert commits 3824, 3850 and 3852. We'll redo them more carefully.
* 3853Kartik K. Agaram2017-05-121-4/+13
| | | | | | Bring back commit 3844, albeit in simplified form. I'd forgotten that the one place where we still need to buffer rendering is when people hold down up/down arrow keys.
* 3850Kartik K. Agaram2017-05-101-0/+14
| | | | | Bugfix: writes out of bounds used to be skipped, but started clobbering the screen on commit 3824.
* 3844Kartik K. Agaram2017-05-061-58/+5
| | | | | Once I start optimizing most events to not repaint everything there's no need to be smart about queued-up events.
* 3843Kartik K. Agaram2017-05-061-8/+12
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* 3824 - experiment: stop buffering in termboxKartik K. Agaram2017-04-161-17/+0
| | | | | | | | | | | | | | | | Now it's much more apparent why things are slow. You can see each repaint happening. Already I fixed one performance bug -- in clear-rest-of-screen. Since this subverts Mu's fake screen there may be bugs. Another salubrious side effect: I've finally internalized that switching to raw mode doesn't have to clear the screen. That was just an artifact of how termbox abstracted operations. Now I can conceive of using termbox to build a repl as well. (I was inspired to poke into termbox internals by http://viewsourcecode.org/snaptoken/kilo and https://github.com/antirez/linenoise)
* 3816Kartik K. Agaram2017-04-061-12/+2
| | | | | | | | Resize events don't actually seem to ever get queued up, so they're still super slow. Dump all our extra smarts about skipping repaints. We need to focus on speeding up repaints in general. Thanks Andrew Owen for reporting this issue.
* 3797Kartik K. Agaram2017-03-151-1/+0
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* 3793Kartik K. Agaram2017-03-141-63/+0
| | | | | | Move 'render-code' to the layer where it's used. Thanks Caleb Couch for finding this bit of ugliness.
* 3745Kartik K. Agaram2017-02-071-0/+642
| | | | | | | Stop trying to create a new layer showing how we minimize prints. Stephen's suggestion is to create a data structure that encapsulates instructions to `insert-at-cursor` for either just printing a character to screen or rendering everything. Let's try that at some point.
* 3738 - start on new edit/ layer: minimizing printsKartik K. Agaram2017-02-041-642/+0
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* 3705 - switch to tested file-system primitivesKartik K. Agaram2016-12-111-40/+41
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* 3700Kartik K. Agaram2016-11-281-2/+2
| | | | | | Reorder products of some functions in the edit/ and sandbox/ apps. My recent realization: always return 'real' products before ones that just indicate an ingredient is mutable.
* 3699Kartik K. Agaram2016-11-281-2/+2
| | | | | Delete some obsolete /same-as-ingredient attributes. We should always let Mu deduce those at this point.
* 3697Kartik K. Agaram2016-11-271-13/+2
| | | | | | Decouple programming environment initialization from rendering. This helps make clear that we only need the width from screen during initialization.
* 3696Kartik K. Agaram2016-11-271-2/+2
| | | | | | Decouple editor initialization from rendering to screen. This hugely simplifies the header of 'new-editor' and makes clear that it was only using the screen for rendering.
* 3565Kartik K. Agaram2016-10-231-1/+1
| | | | | | Cleaning up the console interfaces before we start changing the socket interfaces to look like them. Reading from sockets need to be non-blocking just like reading from the console.
* 3552Kartik K. Agaram2016-10-221-15/+15
| | | | | | | | | | | | | | | | | | 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
* 3490Kartik K. Agaram2016-10-091-8/+8
| | | | | | | | | | | | | | | 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.
* 3489Kartik K. Agaram2016-10-081-27/+27
| | | | | | | | | | 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.
* 3457Kartik K. Agaram2016-10-061-27/+27
| | | | | Switch around some unicode characters in the edit/ app so that it renders more cleanly in html (with monospace fonts).
* 3445Kartik K. Agaram2016-10-061-14/+14
| | | | | | | 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.
* 3429 - standardize Mu scenariosKartik K. Agaram2016-09-281-41/+37
| | | | | | | | | | | | | 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.
* 3396Kartik K. Agaram2016-09-171-47/+47
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* 3391 - type abbreviations everywhereKartik K. Agaram2016-09-171-135/+135
| | | | | | | | | 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.
* 3341Kartik K. Agaram2016-09-121-2/+2
| | | | | | | Process type abbreviations in function headers. Still a couple of places where doing this causes strange errors. We'll track those down next.
* 3337 - first use of type abbreviations: textKartik K. Agaram2016-09-121-17/+17
| | | | | In the process I've uncover a couple of situations we don't support type abbreviations yet. They're next.
* 3067Kartik K. Agaram2016-06-251-62/+0
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* 3053 - keep cursor stable on resizeKartik K. Agaram2016-06-121-1/+85
| | | | | As much as possible; if the cursor moves off screen, it still resets to top of screen.
* 3052 - make edit/ render functions higher-orderKartik K. Agaram2016-06-121-19/+19
| | | | | | 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.
* 2981 - sandbox buttons implemented in edit/Kartik K. Agaram2016-05-191-0/+2
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* 2975Kartik K. Agaram2016-05-191-4/+4
| | | | Clean up this helper before we start redoing sandbox menubars.
* 2864 - replace all address:shared with just addressKartik K. Agaram2016-04-241-62/+62
| | | | | | | Now that we no longer have non-shared addresses, we can just always track refcounts for all addresses. Phew!
* 2861 - 'maybe-convert' no longer returns addressKartik K. Agaram2016-04-231-13/+13
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* 2853 - purge get-address from edit/ appKartik K. Agaram2016-04-221-27/+28
| | | | Phew!
* 2782 - directly use string literals everywhereKartik K. Agaram2016-03-141-4/+2
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* 2735 - define recipes using 'def'Kartik K. Agaram2016-03-081-13/+13
| | | | | | | | | | | | 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.
* 2716 - more holes in immutability checksKartik K. Agaram2016-02-261-3/+3
| | | | | We're still not done. Layer 60 doesn't yet handle variables in surrounding spaces. There's probably other issues..
* 2707Kartik K. Agaram2016-02-251-2/+0
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* 2590 - support scrolling through sandboxesKartik K. Agaram2016-01-221-5/+6
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* 2586 - show first sandbox with error in statusKartik K. Agaram2016-01-221-0/+3
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* 2576 - distinguish allocated addresses from othersKartik K. Agaram2016-01-191-64/+64
| | | | | | | | | | | | | | | | 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.
* 2548 - teach 'print' to print integersKartik K. Agaram2015-12-281-8/+16
| | | | | | | | | | 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..