2024-11-27 15:46:58 +13:00
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fn cube(length, center) {
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2024-10-02 14:19:40 -05:00
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l = length/2
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x = center[0]
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y = center[1]
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p0 = [-l + x, -l + y]
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p1 = [-l + x, l + y]
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p2 = [ l + x, l + y]
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p3 = [ l + x, -l + y]
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2024-03-01 17:16:18 -08:00
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2024-02-22 12:03:05 -06:00
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return startSketchAt(p0)
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KCL: Use keyword arguments for line, lineTo, extrude and close (#5249)
Part of #4600.
PR: https://github.com/KittyCAD/modeling-app/pull/4826
# Changes to KCL stdlib
- `line(point, sketch, tag)` and `lineTo(point, sketch, tag)` are combined into `line(@sketch, end?, endAbsolute?, tag?)`
- `close(sketch, tag?)` is now `close(@sketch, tag?)`
- `extrude(length, sketch)` is now `extrude(@sketch, length)`
Note that if a parameter starts with `@` like `@sketch`, it doesn't have any label when called, so you call it like this:
```
sketch = startSketchAt([0, 0])
line(sketch, end = [3, 3], tag = $hi)
```
Note also that if you're using a `|>` pipeline, you can omit the `@` argument and it will be assumed to be the LHS of the `|>`. So the above could be written as
```
sketch = startSketchAt([0, 0])
|> line(end = [3, 3], tag = $hi)
```
Also changes frontend tests to use KittyCAD/kcl-samples#139 instead of its main
The regex find-and-replace I use for migrating code (note these don't work with multi-line expressions) are:
```
line\(([^=]*), %\)
line(end = $1)
line\((.*), %, (.*)\)
line(end = $1, tag = $2)
lineTo\((.*), %\)
line(endAbsolute = $1)
lineTo\((.*), %, (.*)\)
line(endAbsolute = $1, tag = $2)
extrude\((.*), %\)
extrude(length = $1)
extrude\(([^=]*), ([a-zA-Z0-9]+)\)
extrude($2, length = $1)
close\(%, (.*)\)
close(tag = $1)
```
# Selected notes from commits before I squash them all
* Fix test 'yRelative to horizontal distance'
Fixes:
- Make a lineTo helper
- Fix pathToNode to go through the labeled arg .arg property
* Fix test by changing lookups into transformMap
Parts of the code assumed that `line` is always a relative call. But
actually now it might be absolute, if it's got an `endAbsolute` parameter.
So, change whether to look up `line` or `lineTo` and the relevant absolute
or relative line types based on that parameter.
* Stop asserting on exact source ranges
When I changed line to kwargs, all the source ranges we assert on became
slightly different. I find these assertions to be very very low value.
So I'm removing them.
* Fix more tests: getConstraintType calls weren't checking if the
'line' fn was absolute or relative.
* Fixed another queryAst test
There were 2 problems:
- Test was looking for the old style of `line` call to choose an offset
for pathToNode
- Test assumed that the `tag` param was always the third one, but in
a kwarg call, you have to look it up by label
* Fix test: traverse was not handling CallExpressionKw
* Fix another test, addTagKw
addTag helper was not aware of kw args.
* Convert close from positional to kwargs
If the close() call has 0 args, or a single unlabeled arg, the parser
interprets it as a CallExpression (positional) not a CallExpressionKw.
But then if a codemod wants to add a tag to it, it tries adding a kwarg
called 'tag', which fails because the CallExpression doesn't need
kwargs inserted into it.
The fix is: change the node from CallExpression to CallExpressionKw, and
update getNodeFromPath to take a 'replacement' arg, so we can replace
the old node with the new node in the AST.
* Fix the last test
Test was looking for `lineTo` as a substring of the input KCL program.
But there's no more lineTo function, so I changed it to look for
line() with an endAbsolute arg, which is the new equivalent.
Also changed the getConstraintInfo code to look up the lineTo if using
line with endAbsolute.
* Fix many bad regex find-replaces
I wrote a regex find-and-replace which converted `line` calls from
positional to keyword calls. But it was accidentally applied to more
places than it should be, for example, angledLine, xLine and yLine calls.
Fixes this.
* Fixes test 'Basic sketch › code pane closed at start'
Problem was, the getNodeFromPath call might not actually find a callExpressionKw,
it might find a callExpression. So the `giveSketchFnCallTag` thought
it was modifying a kwargs call, but it was actually modifying a positional
call.
This meant it tried to push a labeled argument in, rather than a normal
arg, and a lot of other problems. Fixed by doing runtime typechecking.
* Fix: Optional args given with wrong type were silently ignored
Optional args don't have to be given. But if the user gives them, they
should be the right type.
Bug: if the KCL interpreter found an optional arg, which was given, but
was the wrong type, it would ignore it and pretend the arg was never
given at all. This was confusing for users.
Fix: Now if you give an optional arg, but it's the wrong type, KCL will
emit a type error just like it would for a mandatory argument.
---------
Signed-off-by: Nick Cameron <nrc@ncameron.org>
Co-authored-by: Nick Cameron <nrc@ncameron.org>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Frank Noirot <frank@kittycad.io>
Co-authored-by: Kevin Nadro <kevin@zoo.dev>
Co-authored-by: Jonathan Tran <jonnytran@gmail.com>
2025-02-04 08:31:43 -06:00
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|> line(endAbsolute = p1)
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|> line(endAbsolute = p2)
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|> line(endAbsolute = p3)
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|> line(endAbsolute = p0)
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|> close()
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|> extrude(length = length)
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New parser built in Winnow (#731)
* New parser built with Winnow
This new parser uses [winnow](docs.rs/winnow) to replace the handwritten recursive parser.
## Differences
I think the Winnow parser is more readable than handwritten one, due to reusing standard combinators. If you have a parsre like `p` or `q` you can combine them with standard functions like `repeat(0..4, p)`, `opt(p)`, `alt((p, q))` and `separated1(p, ", ")`. This IMO makes it more readable once you know what those standard functions do.
It's also more accurate now -- e.g. the parser no longer swallows whitespace between comments, or inserts it where there was none before. It no longer changes // comments to /* comments depending on the surrounding whitespace.
Primary form of testing was running the same KCL program through both the old and new parsers and asserting that both parsers produce the same AST. See the test `parser::parser_impl::tests::check_parsers_work_the_same`. But occasionally the new and old parsers disagree. This is either:
- Innocuous (e.g. disagreeing on whether a comment starts at the preceding whitespace or at the //)
- Helpful (e.g. new parser recognizes comments more accurately, preserving the difference between // and /* comments)
- Acceptably bad (e.g. new parser sometimes outputs worse error messages, TODO in #784)
so those KCL programs have their own unit tests in `parser_impl.rs` demonstrating the behaviour.
If you'd like to review this PR, it's arguably more important to review changes to the existing unit tests rather than the new parser itself. Because changes to the unit tests show where my parser changes behaviour -- usually for the better, occasionally for the worse (e.g. a worse error message than before). I think overall the improvements are worth it that I'd like to merge it without spending another week fixing it up -- we can fix the error messages in a follow-up PR.
## Performance
| Benchmark | Old parser (this branch) | New parser (this branch) | Speedup |
| ------------- | ------------- | ------------- | ------------- |
| Pipes on pipes | 922 ms | 42 ms | 21x |
| Kitt SVG | 148 ms | 7 ms | 21x |
There's definitely still room to improve performance:
- https://github.com/KittyCAD/modeling-app/issues/839
- https://github.com/KittyCAD/modeling-app/issues/840
## Winnow
Y'all know I love [Nom](docs.rs/nom) and I've blogged about it a lot. But I'm very happy using Winnow, a fork. It's got some really nice usability improvements. While writing this PR I found some bugs or unclear docs in Winnow:
- https://github.com/winnow-rs/winnow/issues/339
- https://github.com/winnow-rs/winnow/issues/341
- https://github.com/winnow-rs/winnow/issues/342
- https://github.com/winnow-rs/winnow/issues/344
The maintainer was quick to close them and release new versions within a few hours, so I feel very confident building the parser on this library. It's a clear improvement over Nom and it's used in toml-edit (and therefore within Cargo) and Gitoxide, so it's becoming a staple of the Rust ecosystem, which adds confidence.
Closes #716
Closes #815
Closes #599
2023-10-12 09:42:37 -05:00
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}
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2024-10-02 14:19:40 -05:00
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myCube = cube(40, [0,0])
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