Commit Graph

282 Commits

Author SHA1 Message Date
Radosław Waśko
17f73988e8
Update drop_missing_rows to filter_blank_rows API. (#3805)
Implements https://www.pivotaltracker.com/story/show/183390042 and https://www.pivotaltracker.com/story/show/183390370
2022-10-18 15:58:50 +00:00
Pavel Marek
a53fbc79be
Improve Unsupported_Argument_Types message. (#3803)
Improve `Unsupported_Argument_Types` error so that it includes the message from the original exception. `arguments` field is retained, but not included in `to_display_text` method.
2022-10-18 12:03:25 +00:00
James Dunkerley
701c644d0e
Tidy up the remaining ones except Base... (#3797)
- Removed `Dubious constructor export` from Examples, Geo, Google_Api, Image and Test.
- Updated Google_Api project to meet newer code standards.
- Restructured `Standard.Test`:
- `Main.enso` now exports `Bench`, `Faker`, `Problems`, `Test`, `Test_Suite`
- `Test.Suite` methods moved into a `Test_Suite` type.
- Moved `Bench.measure` into `Bench` type.
- Separated the reporting to a `Test_Reporter` module.
- Moved `Faker` methods into `Faker` type.
- Removed `Verbs` and `.should` method.
- Added `should_start_with` and `should_contain` extensions to `Any`.
- Restructured `Standard.Image`:
- Merged Codecs methods into `Image`.
- Export `Image`, `Read_Flag`, `Write_Flag` and `Matrix` as types from `Main.enso`.
- Merged the internal methods into `Matrix` and `Image`.
- Fixed `Day_Of_Week` to be exported as a type and sort the `from` method.
2022-10-17 11:27:27 +00:00
Radosław Waśko
82de8f88bd
Add support for Is_In and Not_In to Filter_Condition (#3790)
Implements https://www.pivotaltracker.com/story/show/183389945
2022-10-15 11:29:59 +00:00
Pavel Marek
e9260227c4
Duration type is a builtin type (#3759)
- Reimplement the `Duration` type to a built-in type.
- `Duration` is an interop type.
- Allow Enso method dispatch on `Duration` interop coming from different languages.

# Important Notes
- The older `Duration` type should now be split into new `Duration` builtin type and a `Period` type.
- This PR does not implement `Period` type, so all the `Period`-related functionality is currently not working, e.g., `Date - Period`.
- This PR removes `Integer.milliseconds`, `Integer.seconds`, ..., `Integer.years` extension methods.
2022-10-14 18:08:08 +00:00
Paweł Grabarz
ce6267f098
Add replace_text method to In-Memory Table (#3793)
Implements https://www.pivotaltracker.com/n/projects/2539304/stories/183415329
2022-10-14 17:42:29 +02:00
Hubert Plociniczak
14ed2812ee
Don't crash interpreter on missing method (#3787)
When trying to resolve an invalid method of a polyglot array we were reaching a state where no specialization applied.
Turns out we can now simplify the logic of inferring polyglot call type for arrays and avoid the crash.
2022-10-14 13:17:13 +02:00
Radosław Waśko
592a8516a8
Add Is_Empty, Not_Empty, Like and Not_Like to Filter_Condition (#3775)
Implements https://www.pivotaltracker.com/story/show/183389890
2022-10-10 23:11:04 +00:00
James Dunkerley
9301f2dcc5
Sort out statics in Database. (#3774)
- Moved `Standard.Database.connect` into `Standard.Database.Database.connect`, so can now just `from Standard.Database import ...`.
- Removed all `Dubious constructor export`s.
- Switched to using `project` for internal imports.
- Moved to using `Value` for private constructors and not re-exporting.
- Export types not modules from `Standard.Database`.
- Broke up `IR` into separate files (Context, Expression, From_Spec, Internal_Column, Join_Kind, Query).
- No longer use `IR.` instead via specific types.
- Broke up `SQL` into separate files (SQL_Type and SQL_Statement).

Additionally;
- Standard.Table: Moved `storage_types` into `Storage`.
- Standard.Table: Switched to using `project` for internal imports.
- Standard.Table.Excel: Renamed modules `Range` to `Excel_Range` and `Section` to `Excel_Section`.
- `Standard.Visualisation`: Switched to using `project` for internal imports.
- `Standard.Visualisation`: Moved to using `Value` for private constructors and not re-exporting.

# Important Notes
- Have not cleared up the `Errors` yet.
- Have not switched to type pattern matching.
2022-10-07 11:32:00 +00:00
Radosław Waśko
7afaf8c6cc
Add filtering by Filter_Condition to Vector, Range and List (#3770)
Implements https://www.pivotaltracker.com/story/show/183389901
2022-10-07 04:02:54 +00:00
James Dunkerley
185378f07c
Moving library statics to type for Table. (#3760)
- Generally export types not modules from the `Standard.Table` import.
- Moved `new`, `from_rows` the `Standard.Table` library into the `Table` type.
- Renames `Standard.Table.Data.Storage.Type` to `Standard.Table.Data.Storage.Storage`
- Removed the internal `from_columns` method.
- Removed `join` and `concat` and merged into instance methods.
- Removed `Table` and `Column` from the `Standard.Database` exports.
- Removed `Standard.Table.Data.Column.Aggregate_Column` as not used any more.
2022-10-06 17:01:18 +00:00
Hubert Plociniczak
67526ea8eb
Print average when benchmarking (#3762) 2022-10-05 23:21:26 +00:00
Radosław Waśko
503d3eb5a3
Update Table API with new filter design (#3750)
Implements https://www.pivotaltracker.com/story/show/183389855

# Important Notes
Implements basic filter operations both In-Memory and for the Database backend, ensuring that existing tests can be adapted and keep working. Not all `Filter_Condition`s are implemented yet.

Also implements significant part of https://www.pivotaltracker.com/story/show/183390314
2022-10-05 11:40:10 +00:00
Dmitry Bushev
f6b5438e9e
Fix Warnings visualization (#3754)
Changelog
- fix reporting of runtime type for values annotated with warning
- fix visualizations of values annotated with warnings
- fix `Runtime.get_stack_trace` failure in interactive mode
2022-10-04 17:27:13 +00:00
James Dunkerley
eeec3bdf94
Adding a shorthand for the Table API until widgets available (#3753)
Allows using `Vector ColumnName` for the various table functions as short hand.

- `select_columns`, `remove_columns`,`reorder_columns`, `distinct` all map to an exact By_Name match.
- `rename_columns` does a positional rename on the Vector passed.
- `order_by` sorts ascending on each column passed in order.

# Important Notes
This may be reversed once widgets are available and working but this makes the APIs much more usable in current UI.
2022-10-04 11:37:14 +00:00
Hubert Plociniczak
ae66087bb9
By-type pattern matching (#3742)
This change brings by-type pattern matching to Enso.
One can pattern match on Enso types as well as on polyglot types.

For example,
```
case x of
_ : Integer -> ...
_ : Text -> ...
_ -> ...
```
as well as Java's types
```
case y of
_ : ArrayList -> ...
_ : List -> ...
_ : AbstractList -> ...
_ -> ..
```

It is no longer possible to match a value with a corresponding type constructor.
For example
```
case Date.now of
Date -> ...
```
will no longer match and one should match on the type (`_ : Date`) instead.
```
case Date of
Date -> ...
```
is fine though, as requested in the ticket.

The change required further changes to `type_of` logic which wasn't dealing well with polyglot values.

Implements https://www.pivotaltracker.com/story/show/183188846

# Important Notes
~I discovered late in the game that nested patterns involving type patterns, such as `Const (f : Foo) tail -> ...` are not possible due to the old parser logic.
I would prefer to add it in a separate PR because this one is already getting quite large.~ This is now supported!
2022-10-04 09:23:58 +00:00
Radosław Waśko
61a4120cfb
Fix date comparisons and test sorting of tables and vectors with dates (#3745)
Implements https://www.pivotaltracker.com/story/show/183402892

# Important Notes
- Fixes inconsistent `compare_to` vs `==` behaviour in date/time types and adds test for that.
- Adds test for `Table.order_by` on dates and custom types.
- Fixes an issue with `Table.order_by` for custom types.
- Unifies how incomparable objects are reported by `Table.order_by` and `Vector.sort`.
- Adds benchmarks comparing `Table.order_by` and `Vector.sort` performance.
2022-09-29 08:48:00 +00:00
Radosław Waśko
7da4d61484
Update Case Sensitivity arguments (#3741)
Implements https://www.pivotaltracker.com/story/show/183314956
2022-09-27 20:15:52 +00:00
Marcin Kostrzewa
726bfeb883
Wip/mk/statics (#3740)
Makes statics static. A type and its instances have different methods defined on them, as it should be. Constructors are now scoped in types, and can be imported/exported.

# Important Notes
The method of fixing stdlib chosen here is to just not. All the conses are exported to make all old code work. All such instances are marked with `TODO Dubious constructor export` so that it can be found and fixed.
2022-09-27 14:23:06 +00:00
Hubert Plociniczak
7a6ee0c200
Implement type_of (#3722)
This change implements a simple `type_of` method that returns a type of a given value, including for polyglot objects.

The change also allows for pattern matching on various time-related instances. It is a nice-to-have on its own, but it was primarily needed here to write some tests. For equality checks on types we currently can't use `==` due to a known _feature_ which essentially does wrong dispatching. This will be improved in the upcoming statics PR so we agreed that there is no point in duplicating that work and we can replace it later.

Also, note that this PR changes `Meta.is_same_object`. Comparing types revealed that it was wrong when comparing polyglot wrappers over the same value.
2022-09-26 16:01:39 +00:00
Radosław Waśko
ccd5fa1098
Add benchmarks for == and work days (#3735)
There are a few operations whose timing we'd like to measure.
2022-09-26 11:02:22 +00:00
Radosław Waśko
cd10b5d34d
Add Date_Period.Week to start_of and end_of methods (#3733)
Implements https://www.pivotaltracker.com/story/show/183349732
2022-09-23 22:14:35 +00:00
James Dunkerley
a3de3c6128
Use ArraySlice to slice a Vector (#3724)
Use an `ArraySlice` to slice `Vector`.
Avoids memory copying for the slice function.

# Important Notes
| Test | Ref | New |
| --- | --- | --- |
| New Vector | 71.9 | 71.0 |
| Append Single | 26.0 | 27.7 |
| Append Large | 15.1 | 14.9 |
| Sum | 156.4 | 165.8 |
| Drop First 20 and Sum | 171.2 | 165.3 |
| Drop Last 20 and Sum | 170.7 | 163.0 |
| Filter | 76.9 | 76.9 |
| Filter With Index | 166.3 | 168.3 |
| Partition | 278.5 | 273.8 |
| Partition With Index | 392.0 | 393.7 |
| Each | 101.9 | 102.7 |

- Note: the performance of New and Append has got slower from previous tests.
2022-09-23 15:13:16 +00:00
James Dunkerley
6f54e80970
Adjust Database connection to use query/read to access data. (#3727)
Adjust Database connection API to align with new [design](https://github.com/enso-org/design/blob/wip/jd/database-read/epics/basic-libraries/database-read/design.md#querying-tables).
- `query` replaces the old `access_table` and is expanded to support raw SQL queries.
- `read` replaces `execute_query` and matches the API of `query`.
- `to_dataframe` is renamed to `read`.

# Important Notes
Added support for `++` to concatenate a Text without wrapping in a `SQL.Code`.
2022-09-23 07:35:08 +00:00
Radosław Waśko
e9ebc663c1
Add business days functions to Date and Date_Time (#3726)
Implements https://www.pivotaltracker.com/story/show/183082087

# Important Notes
- Removed unnecessary invocations of `Error.throw` improving performance of `Vector.distinct`. The time of the `add_work_days and work_days_until should be consistent with each other` test suite came down from 15s to 3s after the changes.
2022-09-22 08:31:15 +00:00
Dmitry Bushev
4443ccc0a9
Fix expression updates for builtin types (#3721)
Changelog:
- add missing cases to runtime Types check
- create an appropriate test suite
2022-09-19 13:56:51 +00:00
James Dunkerley
d6346e9d66
Renaming various constructors and moving types around for Database. (#3715)
Repairing the constructor name following the types work. Some general tiding up as well.

- Remove `Standard.Database.Data.Column.Aggregate_Column_Builder`.
- Remove `Standard.Database.Data.Dialect.Dialect.Dialect_Data`.
- Remove unused imports and update some type definitions.
- Rename `Postgres.Postgres_Data` => `Postgres_Options.Postgres`.
- Rename `Redshift.Redshift_Data` => `Redshift_Options.Redshift`.
- Rename `SQLite.SQLite_Data` => `SQLite_Options.SQLite`.
- Rename `Credentials.Credentials_Data` => `Credentials.Username_And_Password`.
- Rename `Sql` to `SQL` across the board.
- Merge `Standard.Database.Data.Internal` into `Standard.Database.Internal`.
- Move dialects into `Internal` and merge the function in `Helpers` into `Base_Generator`.
2022-09-19 12:39:40 +00:00
Radosław Waśko
8fa8d12cc3
String functionality in std-table should use std-base (#3717)
Implements https://www.pivotaltracker.com/story/show/181754646
2022-09-17 14:38:02 +00:00
Hubert Plociniczak
0e5df935d3
Don't rename imported Main module that only imports names (#3710)
Turns that if you import a two-part import we had special code that would a) add Main submodule b) add an explicit rename.

b) is problematic because sometimes we only want to import specific names.
E.g.,
```
from Bar.Foo import Bar, Baz
```
would be translated to
```
from Bar.Foo.Main as Foo import Bar, Baz
```
and it should only be translated to
```
from Bar.Foo.Main import Bar, Baz
```

This change detects this scenario and does not add renames in that case.

Fixes [183276486](https://www.pivotaltracker.com/story/show/183276486).
2022-09-16 13:01:06 +00:00
Radosław Waśko
5ed388930e
Additional tests for handling Dates in Table (#3707)
Resolves https://www.pivotaltracker.com/story/show/183285801

@JaroslavTulach suggested the current implementation may not handle these correctly, which suggests that the logic is not completely trivial - so I added a test to ensure that it works as we'd expect. Fortunately, it did work - but it's good to keep the tests to avoid regressions.
2022-09-15 23:18:19 +00:00
James Dunkerley
0126f02e7b
Restructure File.read into the new design (#3701)
Changes following Marcin's work. Should be back to very similar public API as before.

- Add an "interface" type: `Standard.Base.System.File_Format.File_Format`.
- All `File_Format` types now have a `can_read` method to decide if they can read a file.
- Move `Standard.Table.IO.File_Format.Text.Text_Data` to `Standard.Base.System.File_Format.Plain_Text_Format.Plain_Text`.
- Move `Standard.Table.IO.File_Format.Bytes` to `Standard.Base.System.File_Format.Bytes`.
- Move `Standard.Table.IO.File_Format.Infer` to `Standard.Base.System.File_Format.Infer`. **(doesn't belong here...)**
- Move `Standard.Table.IO.File_Format.Unsupported_File_Type` to `Standard.Base.Error.Common.Unsupported_File_Type`.
- Add `Infer`, `File_Format`, `Bytes`, `Plain_Text`, `Plain_Text_Format` to `Standard.Base` exports.
- Fold extension methods of `Standard.Base.Meta.Unresolved_Symbol` into type.
- Move `Standard.Table.IO.File_Format.Auto` to `Standard.Table.IO.Auto_Detect.Auto_Detect`.
- Added a `types` Vector of all the built in formats.
- `Auto_Detect` asks each type if they `can_read` a file.
- Broke up and moved `Standard.Table.IO.Excel` into `Standard.Table.Excel`:
- Moved `Standard.Table.IO.File_Format.Excel.Excel_Data` to `Standard.Table.Excel.Excel_Format.Excel_Format.Excel`.
- Renamed `Sheet` to `Worksheet`.
- Internal types `Reader` and `Writer` providing the actual read and write methods.
- Created `Standard.Table.Delimited` with similar structure to `Standard.Table.Excel`:
- Moved `Standard.Table.IO.File_Format.Delimited.Delimited_Data` to `Standard.Table.Delimited.Delimited_Format.Delimited_Format.Delimited`.
- Moved `Standard.Table.IO.Quote_Style` to `Standard.Table.Delimited.Quote_Style`.
- Moved the `Reader` and `Writer` internal types into here. Renamed methods to have unique names.
- Add `Aggregate_Column`, `Auto_Detect`, `Delimited`, `Delimited_Format`, `Excel`, `Excel_Format`, `Sheet_Names`, `Range_Names`, `Worksheet` and `Cell_Range` to `Standard.Table` exports.
2022-09-15 14:48:46 +00:00
Radosław Waśko
b304402d8e
Add Period Start and End functions to Date and DateTime (#3695)
Implements https://www.pivotaltracker.com/story/show/183081152
2022-09-13 09:51:08 +00:00
Hubert Plociniczak
fba5047acc
Improved Vector/Array interop (#3667)
`Vector` type is now a builtin type. This requires a bunch of additional builtin methods for its creation:
- Use `Vector.from_array` to convert any array-like structure into a `Vector` [by copy](f628b28f5f)
- Use (already existing) `Vector.from_polyglot_array` to convert any array-like structure into a `Vector` **without** copying
- Use (already existing) `Vector.fill 1 item` to create a singleton `Vector`

Additional, for pattern matching purposes, we had to implement a `VectorBranchNode`. Use following to match on `x` being an instance of `Vector` type:
```
import Standard.Base.Data.Vector

size = case x of
Vector.Vector -> x.length
_ -> 0
```

Finally, `VectorLiterals` pass that transforms `[1,2,3]` to (roughly)
```
a1 = 1
a2 = 2
a3 = 3
Vector (Array (a1,a2, a3))
```
had to be modified to generate
```
a1 = 1
a2 = 2
a3 = 3
Vector.from_array (Array (a1, a2, a3))
```
instead to accomodate to the API changes. As of 025acaa676 all the known CI checks passes. Let's start the review.

# Important Notes
Matching in `case` statement is currently done via `Vector_Data`. Use:
```
case x of
Vector.Vector_Data -> True
```
until a better alternative is found.
2022-09-13 03:07:17 +00:00
James Dunkerley
4c82b657de
Tidy up type signatures and error types (#3693)
Small clean up PR.

- Aligns a few type signatures with their functions.
- Some formatting fixes.
- Remove a few unused types.
- Make error extension functions be standard methods.
2022-09-09 11:11:46 +00:00
James Dunkerley
2b425f8e08
Restructuring Database.Connection to allow for database specific types. (#3632)
- Added `databases`, `database`, `set_database`.
- Added `schemas`, `schema`, `set_schema`.
- Added `table_types`,
- Added `tables`.
- Moved the vast majority of the connection work into a lower level `JDBC_Connection` object.
- `Connection` represents the standard API for database connections and provides a base JDBC implementation.
- `SQLite_Connection` has the `Connection` API but with custom `databases` and `schemas` methods for SQLite.
- `Postgres_Connection` has the `Connection` API but with custom `set_database`, `databases`, `set_schema` and `schemas` methods for Postgres.
- Updated `Redshift` - no public API change.
2022-09-07 17:32:28 +00:00
Radosław Waśko
551100af3b
Add Table.distinct function to In-Memory table (#3684)
Implements https://www.pivotaltracker.com/story/show/182307143

# Important Notes
- Modified standard library Java helpers dependencies so that `std-table` module depends on `std-base`, as a provided dependency. This is allowed, because `std-table` is used by the `Standard.Table` Enso module which depends on `Standard.Base` which ensures that the `std-base` is loaded onto the classpath, thus whenever `std-table` is loaded by `Standard.Table`, so is `std-base`. Thus we can rely on classes from `std-base` and its dependencies being _provided_ on the classpath. Thanks to that we can use utilities like `Text_Utils` also in `std-table`, avoiding code duplication. Additional advantage of that is that we don't need to specify ICU4J as a separate dependency for `std-table`, since it is 'taken' from `std-base` already - so we avoid including it in our build packages twice.
2022-09-07 12:28:41 +00:00
Radosław Waśko
eafba079d9
Make In Memory Table Aggregator types more specific where possible (#3679)
Many aggregation types fell back to the general `Any` type where they could have used the type of input column - for example `First` of a column of integers is guaranteed to fit the `Integer` storage type, so it doesn't have to fall back to `Any`. This PR fixes that and adds a test that checks this.
2022-09-05 09:17:41 +00:00
Radosław Waśko
65140f48ca
Add storage support for Date, Time and DateTime to InMemory table (#3673)
Implements https://www.pivotaltracker.com/story/show/183080911
2022-08-31 22:06:29 +00:00
Marcin Kostrzewa
4fc6dcced0
Get rid of free-floating atoms. Everything has a type now! (#3671)
This is a step towards the new language spec. The `type` keyword now means something. So we now have
```
type Maybe a
Some (from_some : a)
None
```
as a thing one may write. Also `Some` and `None` are not standalone types now – only `Maybe` is.
This halfway to static methods – we still allow for things like `Number + Number` for backwards compatibility. It will disappear in the next PR.

The concept of a type is now used for method dispatch – with great impact on interpreter code density.

Some APIs in the STDLIB may require re-thinking. I take this is going to be up to the libraries team – some choices are not as good with a semantically different language. I've strived to update stdlib with minimal changes – to make sure it still works as it did.

It is worth mentioning the conflicting constructor name convention I've used: if `Foo` only has one constructor, previously named `Foo`, we now have:
```
type Foo
Foo_Data f1 f2 f3
```

This is now necessary, because we still don't have proper statics. When they arrive, this can be changed (quite easily, with SED) to use them, and figure out the actual convention then.

I have also reworked large parts of the builtins system, because it did not work at all with the new concepts.

It also exposes the type variants in SuggestionBuilder, that was the original tiny PR this was based on.

PS I'm so sorry for the size of this. No idea how this could have been smaller. It's a breaking language change after all.
2022-08-30 22:54:53 +00:00
Radosław Waśko
e6e4692692
DataFormatter should infer datetime from values without seconds (#3668)
Fixes https://www.pivotaltracker.com/story/show/183033133
2022-08-26 21:10:52 +00:00
Radosław Waśko
d7ebc4a338
Add Table.take and Table.drop functions to In-Memory table (#3647)
Implements https://www.pivotaltracker.com/story/show/182307347
2022-08-26 19:41:36 +00:00
James Dunkerley
a20d43390e
Adding DateTime part functions (#3669)
- Added `Zone`, `Date_Time` and `Time_Of_Day` to `Standard.Base`.
- Renamed `Zone` to `Time_Zone`.
- Added `century`.
- Added `is_leap_year`.
- Added `length_of_year`.
- Added `length_of_month`.
- Added `quarter`.
- Added `day_of_year`.
- Added `Day_Of_Week` type and `day_of_week` function.
- Updated `week_of_year` to support ISO.

# Important Notes
- Had to pass locale to formatter for date/time tests to work on my PC.
- Changed default of `week_of_year` to use ISO.
2022-08-26 15:47:58 +00:00
Radosław Waśko
fd318cfa96
Remove Array.set_at (#3634)
Implements https://www.pivotaltracker.com/story/show/182879865

# Important Notes
Note that removing `set_at` still does not make our arrays fully immutable - `Array.copy` can still be used to mutate them.
2022-08-26 09:34:33 +00:00
Hubert Plociniczak
d87a32d019
Builtin Date_Time, Time_Of_Day, Zone (#3658)
* Builtin Date_Time, Time_Of_Day, Zone

Improved polyglot support for Date_Time (formerly Time), Time_Of_Day and
Zone. This follows the pattern introduced for Enso Date.

Minor caveat - in tests for Date, had to bend a lot for JS Date to pass.
This is because JS Date is not really only a Date, but also a Time and
Timezone, previously we just didn't consider the latter.
Also, JS Date does not deal well with setting timezones so the trick I
used is to first call foreign function returning a polyglot JS Date,
which is converted to ZonedDateTime and only then set the correct
timezone. That way none of the existing tests had to be changes or
special cased.

Additionally, JS deals with milliseconds rather than nanoseconds so
there is loss in precision, as noted in Time_Spec.

* Add tests for Java's LocalTime

* changelog

* Make date formatters in table happy

* PR review, add more tests for zone

* More tests and fixed a bug in column reader

Column reader didn't take into account timezone but that was a mistake
since then it wouldn't map to Enso's Date_Time.
Added tests that check it now.

* remove redundant conversion

* Update distribution/lib/Standard/Base/0.0.0-dev/src/Data/Time.enso

Co-authored-by: Radosław Waśko <radoslaw.wasko@enso.org>

* First round of addressing PR review

* don't leak java exceptions in Zone

* Move Date_Time to top-level module

* PR review

Co-authored-by: Radosław Waśko <radoslaw.wasko@enso.org>
Co-authored-by: Jaroslav Tulach <jaroslav.tulach@enso.org>
2022-08-24 12:31:29 +02:00
Hubert Plociniczak
4b9c91626e
Use Vector.from_polyglot_array to make Vectors backed by polyglot arrays (#3628)
Use Proxy_Polyglot_Array as a proxy for polyglot arrays, thus unifying
the way the underlying array is accessed in Vector.

Used the opportunity to cleanup builtin lookup, which now actually
respects what is defined in the body of @Builtin_Method annotation.

Also discovered that polyglot null values (in JS, Python and R) were leaking to Enso.
Fixed that by doing explicit translation to `Nothing`.

https://www.pivotaltracker.com/story/show/181123986
2022-08-23 21:13:16 +00:00
Jaroslav Tulach
2b9352d2fc
Lazy scatterplot for Vector & Table (#3655)
First of all this PR demonstrates how to implement _lazy visualization_:
- one needs to write/enhance Enso visualization libraries - this PR adds two optional parameters (`bounds` and `limit`) to `process_to_json_text` function.
- the `process_to_json_text` can be tested by standard Enso test harness which this PR also does
- then one has to modify JavaScript on the IDE side to construct `setPreprocessor` expression using the optional parameters

The idea of _scatter plot lazy visualization_ is to limit the amount of points the IDE requests. Initially the limit is set to `limit=1024`. The `Scatter_Plot.enso` then processes the data and selects/generates the `limit` subset. Right now it includes `min`, `max` in both `x`, `y` axis plus randomly chosen points up to the `limit`.

![Zooming In](https://user-images.githubusercontent.com/26887752/185336126-f4fbd914-7fd8-4f0b-8377-178095401f46.png)

The D3 visualization widget is capable of _zooming in_. When that happens the JavaScript widget composes new expression with `bounds` set to the newly visible area. By calling `setPreprocessor` the engine recomputes the visualization data, filters out any data outside of the `bounds` and selects another `limit` points from the new data. The IDE visualization then updates itself to display these more detailed data. Users can zoom-in to see the smallest detail where the number of points gets bellow `limit` or they can select _Fit all_ to see all the data without any `bounds`.

# Important Notes
Randomly selecting `limit` samples from the dataset may be misleading. Probably implementing _k-means clustering_ (where `k=limit`) would generate more representative approximation.
2022-08-23 12:12:22 +00:00
James Dunkerley
684adcb7fb
Tidy up the default imports for Standard.Table (#3660)
- Removed various unnecessary `Standard.Base` imports still left behind.
- Added `Regex` to default `Standard.Base`.
- Removed aliasing from the examples as no longer needed (case coercion no long occurs).
- Remove `import Standard.Table` from within the Table library (directly importing types).
- Reviewed what was in `Standard.Database` - a few tweaks and removals.
- Removed various un-needed aliasing following Hubert's import work.
2022-08-22 19:21:54 +00:00
Radosław Waśko
bcca7f10d9
Add key functions to Table to make it act as [Column] (#3644)
Implements https://www.pivotaltracker.com/story/show/181370836
2022-08-18 12:33:02 +00:00
Hubert Plociniczak
68f9fce21a
Use Java's LocalDate for parsing date in tests (#3650)
Rather than using `Date.parse`, which is already being tested in other
tests, we use `LocalDate.parse`. Making use of a helper class to
mitigate API differences.
2022-08-17 09:34:31 +00:00
Radosław Waśko
fbf6c800f1
Short hand version for order_by (#3643)
Implements https://www.pivotaltracker.com/story/show/182868310
2022-08-16 15:41:37 +00:00