Commit Graph

117 Commits

Author SHA1 Message Date
Hubert Plociniczak
0133e9ef4f
Drop inefficient SemVer implementation (#9089)
`Bump` library uses parser combinators behind the scenes which are known to be good at expressing grammars but are not performance-oriented.

This change ditches the dependency in favour of an existing Java implementation. `jsemver` implements the full specification, which is probably an overkill in our case, but proved to be an almost drop-in replacement for the previous library.

Closes #8692

# Important Notes
Peformance improvements:
- roughly 50ms compared to the previous approach (from 80ms to 20-40ms)

I don't see any time spent in the new implementation during startup so it could be potentially aggressively inlined.
Further more, we could use a facade and offer our own strip down version of semver.
2024-02-22 09:59:09 +00:00
Pavel Marek
96082c3bae
Remove akka from runtime (#8953)
There are two projects transitively required by `runtime`, that have akka dependencies:
- `downloader`
- `connected-lock-manager`

This PR replaces the `akka-http` dependency in `downloader` by HttpClient from JDK, and splits `connected-lock-manager` into two projects such that there are no akka classes in `runtime.jar`.

# Important Notes
- Simplify the `downloader` project - remove akka.
- Add HTTP tests to the `downloader` project that uses our `http-test-helper` that is normally used for stdlib tests.
- It required few tweaks so that we can embed that server in a unit test.
- Split `connected-lock-manager` project into two projects - remove akka from `runtime`.
- **Native image build fixes and quality of life improvements:**
- Output of `native-image` is captured 743e167aa4
- The output will no longer be intertwined with the output from other commands on the CI.
- Arguments to the `native-image` are passed via an argument file, not via command line - ba0a69de6e
- This resolves an issue on Windows with "Command line too long", for example in https://github.com/enso-org/enso/actions/runs/7934447148/job/21665456738?pr=8953#step:8:2269
2024-02-19 16:39:05 +00:00
Jaroslav Tulach
084245868d
Canonicalize the temporary directory files (#8879)
Due to some Mac OS X symlinks trickery we need to canonicalize files created by `@Rule TemporaryFolder` to compare them for equality.
2024-01-29 09:06:43 +00:00
Jaroslav Tulach
9a37357247
Binary operator resolution based on that value (#8779) 2024-01-27 08:38:47 +01:00
Jaroslav Tulach
a764618bd9
Derive --in-project from --run source location (#8775) 2024-01-17 17:19:42 +01:00
Jaroslav Tulach
542357addc
Instructions to build Enso with Espresso for GraalVM for JDK21 (#8641) 2024-01-05 10:18:39 +01:00
Jaroslav Tulach
07d58f2c02
DataflowError.withoutTrace shall not store a trace (#8608) 2023-12-24 11:07:32 +01:00
Pavel Marek
1bde4c5699
Add org.jline as module to component directory (#8496)
Add `jline` module to the distribution so that our REPL is usable again.

# Important Notes
- No more: "WARNING: Unable to create a system terminal, creating a dumb terminal " warning when starting REPL
- Arrow keys works as expected in REPL
- Back search (the default shortcut `CTRL + R`) works as expected.
2023-12-13 13:47:50 +00:00
Pavel Marek
268e595ec1
Add Chrome devtools and DAP tools for debugging (#8344)
Adds chrome-inspector tool and Debug Adapter protocol tool for debugging Enso.

# Important Notes
The chrome devtools seems to be broken (tracked in https://github.com/oracle/graal/issues/7636). Even `graalpy --inspect ...` fails (Chrome devtools freezes after connecting to the server). This PR adds Debug adapter protocol tool for debugging as a workaround for chrome inspector. There is docs in [dap.md](https://github.com/enso-org/enso/pull/8344/files#diff-421574b50574cfe546e86d4b3d32d79b8b2087f2fe204f68e5cf2693af43bbe1)
2023-11-22 17:18:41 +00:00
Dmitry Bushev
53d1f727da
Always create events log when profiling (#8337)
Changelog:
- update: always create an event log next to the profiling file when the engine is started with the `--profiling-path` flag
- remove: `--profiling-events-log-path` flag
2023-11-20 16:01:25 +00:00
Jaroslav Tulach
ba19813511
Speeding up "hello world" example by 16% 2023-11-19 16:38:31 +01:00
Dmitry Bushev
a286ab7daa
Backend self sampling (#8309)
close #8248

Changelog:
- add: `profiling/start` request starts the sampler and starts collecting runtime events to the log file
- add: `profiling/stop` request stop the sampler and write the profiling data to the `$ENSO_DATA_DIR/profiling` directory
- refactor: rewrite the profiling logic into Java
2023-11-17 15:04:10 +00:00
Hubert Plociniczak
51abb3e1b0
Apply custom log levels to Truffle logger (#8162)
Previously custom log levels applied only to non-Truffle loggers. To allow it, filtering has to be applied appropriately at two places - first at Java's Handler and then essentially re-confirmed at SLF4J's logger to which the former forwards to.
Filters compose in an `AND` condition, therefore default log level check had to be merged into our custom filters.

`TruffleLogger` has a builtin functionality to perform the filtering when context is configured appropriately. This should be much more efficient than adding a `Filter` to the JUL Handler explicitly.

# Important Notes
```
JAVA_OPTS="-org.enso.compiler.SerializationManager.Logger.level=debug" ./built-distribution/enso-engine-0.0.0-dev-linux-amd64/enso-0.0.0-dev/bin/enso  --run
```
will now assign a custom log level to `SerializationManager` Logger.
2023-11-10 16:34:04 +00:00
Dmitry Bushev
210c1907a8
Fix with profiling option (#8266)
close #8156

Followup to #8254. For some reason, I did not commit this change to the original PR.
2023-11-09 09:26:00 +00:00
Dmitry Bushev
5b4716e65a
Enable profiling for all commands of runner executable (#8254)
close #8156
2023-11-08 19:30:28 +00:00
Pavel Marek
88848522cd
Add disable-private-check option (#8202) 2023-11-02 14:25:57 +01:00
Hubert Plociniczak
cfba3c6887
Add support for https and wss (#7937)
* Add support for https and wss

Preliminary support for https and wss. During language server startup we
will read the application config and search for the `https` config with
necessary env vars set.

The configuration supports two modes of creating ssl-context - via
PKCS12 format and certificat+private key.

Fixes #7839.

* Added tests, improved documentation

Generic improvements along with actual tests.

* lint

* more docs + wss support

* changelog

* Apply suggestions from code review

Co-authored-by: Dmitry Bushev <bushevdv@gmail.com>

* PR comment

* typo

* lint

* make windows line endings happy

---------

Co-authored-by: Dmitry Bushev <bushevdv@gmail.com>
2023-10-12 00:03:34 +02:00
Hubert Plociniczak
16c8d2e302
Remove context locks from visualization commands (#7953)
It looks like visualization commands had required context lock unnecessairly. Context manager methods are synchronized and therefore should not need the lock before submitting a correspodning background job.

Additionally, the presence of a context lock leads a deadlock:
1. Consider a long running execution of a program that does not finish within the 5 seconds
2. In the meantime there comes either an `AttachVisualization` or `DetachVisualization` request from the client

The latter will get stuck and eventually timeout out because it cannot acquire the lock withing the required time limits. It is still possible that a single long-running `ExecuteJob` might block other ones (including visualization ones) but that's a separate work.

Fixes some issues present in #7941.

# Important Notes
We need to still investigate `ExecuteJob`s need for context lock which might delay the execution of other background jobs that require it as well (mostly concerned about visualization).
2023-10-06 16:48:38 +00:00
Jaroslav Tulach
997e0fc465
Using ENSO_JAVA env variable to turn on the Espresso support (#7951)
* Q: Is it normal for `--inspect` mode to print two debug urls?
* A: No, it should print just one.
* Q: Putting there a Java breakpoint to find out why it the chromeinspector gets initialized twice might reveal the culprit.
* A: The additional listener is happening [here](https://github.com/enso-org/enso/blob/develop/engine/runner/src/main/scala/org/enso/runner/ContextFactory.scala#L117).

# Important Notes
There is no easy check for a language being present without creating an `Engine`. It was thought creating an `Engine` is cheap operation, but it seems to have some downsides. Let's use `ENSO_JAVA` environment variable to decide whether _experimental Espresso_ support shall be enabled.
2023-10-04 11:55:31 +00:00
Hubert Plociniczak
18b2491a41
Always log to console and file (#7825)
* Always log verbose to a file

The change adds an option by default to always log to a file with
verbose log level.
The implementation is a bit tricky because in the most common use-case
we have to always log in verbose mode to a socket and only later apply
the desired log levels. Previously socket appender would respect the
desired log level already before forwarding the log.

If by default we log to a file, verbose mode is simply ignored and does
not override user settings.

To test run `project-manager` with `ENSO_LOGSERVER_APPENDER=console` env
variable. That will output to the console with the default `INFO` level
and `TRACE` log level for the file.

* add docs

* changelog

* Address some PR requests

1. Log INFO level to CONSOLE by default
2. Change runner's default log level from ERROR to WARN

Took a while to figure out why the correct log level wasn't being passed
to the language server, therefore ignoring the (desired) verbose logs
from the log file.

* linter

* 3rd party uses log4j for logging

Getting rid of the warning by adding a log4j over slf4j bridge:
```
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...
```

* legal review update

* Make sure tests use test resources

Having `application.conf` in `src/main/resources` and `test/resources`
does not guarantee that in Tests we will pick up the latter. Instead, by
default it seems to do some kind of merge of different configurations,
which is far from desired.

* Ensure native launcher test log to console only

Logging to console and (temporary) files is problematic for Windows.
The CI also revealed a problem with the native configuration because it
was not possible to modify the launcher via env variables as everything
was initialized during build time.

* Adapt to method changes

* Potentially deal with Windows failures
2023-09-26 11:32:04 +02:00
Jaroslav Tulach
6cbd111bad
Optional Espresso support with ENSO_JAVA=espresso env variable 2023-09-19 15:10:12 +02:00
Hubert Plociniczak
3445327581
Cleanup serialization config (#7748)
Makes it clear that those IR entries are not needed for executing native runner.

# Important Notes
Follow up on #7017
2023-09-12 08:28:06 +00:00
Hubert Plociniczak
8a60bc6dcd
Replace a custom logger with off the shelf implementation (#7559)
This change replaces Enso's custom logger with an existing, mostly off the shelf logging implementation. The change attempts to provide a 1:1 replacement for the existing solution while requiring only a minimal logic for the initialization.

Loggers are configured completely via `logging-server` section in `application.conf` HOCON file, all initial logback configuration has been removed. This opens up a lot of interesting opportunities because we can benefit from all the well maintained slf4j implementations without being to them in terms of functionality.

Most important differences have been outlined in `docs/infrastructure/logging.md`.

# Important Notes
Addresses:
- #7253
- #6739
2023-09-04 09:40:16 +00:00
Radosław Waśko
87ce78615a
Change layout of local library search path in order to be able to move Round_Spec.enso back to Tests (#7634)
- Closes #7633
- Moves `Round_Spec.enso` from published `Standard.Test` into our `test/Tests` project; the `Table_Tests` that depend on it, simply `import enso_dev.Tests`.
- Changes the layout of the local libraries directory:
- It used to be `root/<namespace>/<name>`.
- Now it is `root/<dir>` - the namespace and name are now read from `package.yaml` instead.
- Adds the parent directory of the current project to the default `ENSO_LIBRARY_PATH`.
- It is treated as a secondary path, so the default `ENSO_HOME/lib` still takes precedence.
- This allows projects to reference and load 'sibling' projects easily - the only requirement is for the project to enable `prefer-local-libraries: true` or add the other local project to its edition. The edition resolution logic is **not changed**.
2023-09-01 20:20:04 +00:00
Jaroslav Tulach
198ab7f487
Support for Python libraries like numpy (#7678) 2023-08-30 06:10:18 +02:00
Radosław Waśko
c61c741476
Respect database backend naming limitations when generating table/column names and validate user-provided names to avoid silent name clashes; process JDBC warnings reported from backends (#7428)
- Closes #5951
- Ensures any SQL warnings reported by the database through the JDBC driver are processed and forwarded to the user.
- These warnings show issues like the implicit name truncation that this PR is also solving. It's good to make sure they are visible as they can help avoid and understand unexpected problems. They should not show up in most standard workflows.
- Adds simple history to our REPL.
2023-08-03 09:44:27 +00:00
Dmitry Bushev
80c4b1ca06
Allow users to give a project other than Upper_Snake_Case name (#7397)
close #6356

Allow arbitrary names for user projects.

# Important Notes
https://github.com/enso-org/enso/assets/357683/55a3b660-af23-4b09-959b-eac515766788
2023-07-28 13:44:39 +00:00
Hubert Plociniczak
3c93c25a5a
Reload project's config on rename (#7179)
Package's config information, once loaded, never changed. While there is typically no need for it, this was problematic when the config became out-of-sync with the filesystem, like in the case of project rename action.
In rename, the config's properties would be updated in the FS, but that would never be reflected in module's package. Therefore further compilations would continue to ask for the old namespace.

Most of the changes are cosmetic (s/`.config`/`.getConfig()`) except for the new `reloadConfig` method on `Package` that is being called in `RenameProjectCmd` handler.

Closes #7062.

# Important Notes
The reported `ExecutionFailed` error should have been mostly fixed already via #7143. This change makes sure that all the related warnings are gone as well and the compiler uses the updated namespace.
2023-07-03 09:36:19 +00:00
Hubert Plociniczak
4e5cb9cca6
Consistent naming of visualization (#7124) 2023-06-26 17:04:35 +00:00
Pavel Marek
bbd9f437c5
Empty input in REPL does not throw NPE (#7111)
Fix for an annoying NullPointerException thrown when an empty line is fed to REPL, i.e., when one just presses Enter. Now, you can press Enter, creating as many blank prompts, as you want:
![image](https://github.com/enso-org/enso/assets/14013887/8f38e210-da5c-46a0-b5f1-1a5da9e62584)
2023-06-23 12:05:44 +00:00
Hubert Plociniczak
cf3624c463
Limit the number of reported warnings (#6577)
Artifically limiting the number of reported warnings to 100. Also added benchmarks with random Ints to investigate perf issues when dealing with warnings (future task).
Ideally we would have a custom set-like collection that allows us internally to specify a maximal number of elements. But `EnsoHashMap` (and potentially `EnsoSet`) are still WIP when it comes to being PE-friendly.

The change also allows for checking if the limit for the number of reported warnings has been reached. It will visualize by adding an additional "Warnings limit reached." to the visualization.

The limit is configurable via `--warnings-limit` parameter to `run`.

Closes #6283.
2023-05-10 11:48:31 +00:00
Jaroslav Tulach
b5578ec2c9
Identify SyntaxError exception and avoid printing a stack trace (#6574) 2023-05-05 15:30:06 +02:00
Hubert Plociniczak
7e33300013
Make execution mode live default for CLI (#6496)
As requested in the design doc and in the ticket.

Closes #6495.
2023-05-02 09:58:41 +00:00
Hubert Plociniczak
3cce3b3caf
Replace IOContexts with execution env and contexts (#6171)
As per design, IOContexts controlled via type signatures are going away. They are replaced by explicit `Context.if_enabled` runtime checks that will be added to particular method implementations.

`production`/`development` `IOPermissions` are replaced with `live` and `design` execution enviornment. Currently, the `live` env has a hardcoded list of allowed contexts i.e. `Input` and `Output`.

# Important Notes
As per design PR-55. Closes #6129. Closes #6131.
2023-04-06 15:47:40 +00:00
Hubert Plociniczak
90612cfa35
Report errors when generating indexes (#6123)
`--compile` command would run the compilation pipeline but silently omit any encountered errors, thus skipping the serialization. This maybe was a good idea in the past but it was problematic now that we generate indexes on build time.
This resulted in rather obscure errors (#6092) for modules that were missing their caches.

The change should significantly improve developers' experience when working on stdlib.

# Important Notes
Making compilation more resilient to sudden cache misses is a separate item to be worked on.
2023-03-30 09:59:49 +00:00
Jaroslav Tulach
8c5cd6e35e
Always print stacktrace to provide some guidance of what is going on (#6128)
Avoid displaying just `Execution finished with an error: java.lang.NullPointerException` without any additional detail.

# Important Notes
When there is an execution error outside of Enso code (identified by the fact that all stack frames belong to `java` language), let's print the whole stack rather than printing nothing. To simulate one can:
```diff
diff --git engine/runtime/src/main/scala/org/enso/compiler/Compiler.scala engine/runtime/src/main/scala/org/enso/compiler/Compiler.scala
index ff0636bc66..42e5eae32e 100644
--- engine/runtime/src/main/scala/org/enso/compiler/Compiler.scala
+++ engine/runtime/src/main/scala/org/enso/compiler/Compiler.scala
@@ -453,7 +453,8 @@ class Compiler(
pool
)
} else {
-          CompletableFuture.completedFuture(ensureParsedAndAnalyzed(module))
+          // CompletableFuture.completedFuture(ensureParsedAndAnalyzed(module))
+          CompletableFuture.completedFuture(())
}
}
```
2023-03-30 08:05:28 +00:00
Hubert Plociniczak
a6487e5105
Don't log installed engines and runtimes in prod (#5900)
The `logAvailableComponentsForDebugging` will check and install all necessary components of GraalVM for every mentioned version. While not harmful, it adds up to startup time.
Additionally added an option in language server startup to skip installation of GraalVM components. The latter is already performed by project-manager when opening the project and it is unnecessary to do it twice. Due to LS' architecture this configuration has to be passed around via multiple configs.

Finally, skipped the attempt to install Python component on Windows - this is not supported by GraalVM atm.

Closes #5749.

# Important Notes
The impact of this problem could be really felt the more versions of Enso and GraalVM one had since it would go through all of them.
2023-03-16 10:36:55 +00:00
Kaz Wesley
e171fba301
New documentation parser (#5917)
Implement new Enso documentation parser; remove old Scala Enso parser.

Performance: Total time parsing documentation is now ~2ms.

# Important Notes
- Doc parsing is now done only in the frontend.
- Some engine tests had never been switched to the new parser. We should investigate tests that don't pass after the switch: #5894.
- The option to run the old searcher has been removed, as it is obsolete and was already broken before this (see #5909).
- Some interfaces used only by the old searcher have been removed.
2023-03-15 15:43:51 +00:00
Jaroslav Tulach
172f72941b
Two findExceptionMessage methods to extract exception messages consistently (#5684)
Creating two `findExceptionMessage` methods in `HostEnsoUtils` and in `VisualizationResult`. Why two? Because one of them is using `org.graalvm.polyglot` SDK as it runs in _"normal Java"_ mode. The other one is using Truffle API as it is running inside of partially evaluated instrument.

There is a `FindExceptionMessageTest` to guarantee consistency between the two methods. It simulates some exceptions in Enso code and checks that both methods extract the same _"message"_ from the exception. The tests verifies hosted and well as Enso exceptions - however testing other polyglot languages is only possible in other modules - as such I created `PolyglotFindExceptionMessageTest` - but that one doesn't have access to Truffle API - e.g. it doesn't really check the consistency - just that a reasonable message is extracted from a JavaScript exception.

# Important Notes
This is not full fix of #5260 - something needs to be done on the IDE side, as the IDE seems to ignore the delivered JSON message - even if it contains properly extracted exception message.
2023-02-20 11:27:16 +00:00
Hubert Plociniczak
d3b350f460
Custom type conversion to double from large long (#4099)
When a large long would be passed to a host call expecting a double, it would crash with a
```
Cannot convert '<some long>'(language: Java, type: java.lang.Long) to Java type 'double': Invalid or lossy primitive coercion
```

That is unlikely to be expected by users. It also came up in the Statistics examples during Sum. One could workaround it by forcing the conversion manually with `.to_decimal` but it is not a permanent solution.

Instead this change adds a custom type mapping from Long to Double that will do it behind the scenes with no user interaction. The mapping kicks in only for really large longs.

# Important Notes
Note that the _safe_ range is hardcoded in Truffle and it is not accessible in enso packages. Therefore a simple c&p for that max safe long value was necessary.
2023-01-31 15:13:00 +00:00
Jaroslav Tulach
f54464881f
enso4igv can open engine/language-server & co. projects (#4098)
In order to investigate `engine/language-server` project, I need to be able to open its sources in IGV and NetBeans.

# Important Notes
By adding same Java source (this time `package-info.java`) and compiling with our Frgaal compiler the necessary `.enso-sources*` files are generated for `engine/language-server` and then the `enso4igv` plugin can open them and properly understand their compile settings.

![Logical View of language-server project](https://user-images.githubusercontent.com/26887752/215472696-ec9801f3-4692-4bdb-be92-c4d2ab552e60.png)

In addition to that this PR enhances the _"logical view"_ presentation of the project by including all source roots found under `src/*/*`.
2023-01-31 08:40:04 +00:00
Dmitry Bushev
01f8e2976d
Fail runner when update manifest fails (#3990)
Otherwise the update manifest job gets stuck.
2022-12-15 16:12:09 +00:00
Jaroslav Tulach
402ebb2f8e
Upgrade to GraalVM 22.3.0 (#3663)
Upgrading to GraalVM 22.3.0.

# Important Notes
- Removed all deprecated `FrameSlot`, and replaced them with frame indexes - integers.
- Add more information to `AliasAnalysis` so that it also gathers these indexes.
- Add quick build mode option to `native-image` as default for non-release builds
- `graaljs` and `native-image` should now be downloaded via `gu` automatically, as dependencies.
- Remove `engine-runner-native` project - native image is now build straight from `engine-runner`.
- We used to have `engine-runner-native` without `sqldf` in classpath as a workaround for an internal native image bug.
- Fixed chrome inspector integration, such that it shows values of local variables both for current stack frame and caller stack frames.
- There are still many issues with the debugging in general, for example, when there is a polyglot value among local variables, a `NullPointerException` is thrown and no values are displayed.
- Removed some deprecated `native-image` options
- Remove some deprecated Truffle API method calls.
2022-11-23 14:30:48 +00:00
Hubert Plociniczak
55f9e96a78
Fix repl (#3767)
Can't instantiate the associated type:
```
Exception in thread "main" java.lang.UnsupportedOperationException: Unsupported operation Value.newInstance(Object...) for 'Internal_Repl_Module___'(language: Java, type: com.oracle.truffle.polyglot.PolyglotMap). You can ensure that the operation is supported using Value.canInstantiate().
at org.graalvm.truffle/com.oracle.truffle.polyglot.PolyglotEngineException.unsupported(PolyglotEngineException.java:137)
at org.graalvm.truffle/com.oracle.truffle.polyglot.PolyglotValueDispatch.unsupported(PolyglotValueDispatch.java:1257)
at org.graalvm.truffle/com.oracle.truffle.polyglot.PolyglotValueDispatch.newInstanceUnsupported(PolyglotValueDispatch.java:613)
at org.graalvm.truffle/com.oracle.truffle.polyglot.PolyglotValueDispatch$InteropValue$NewInstanceNode.doCached(PolyglotValueDispatch.java:4382)
...
```

# Important Notes
I thought we had a CI check that would prevent us from introducing such regressions?
EDIT: we don't
2022-10-06 19:53:54 +00:00
Hubert Plociniczak
096fcfee82
Generate native image for engine-runner (#3638)
This PR adds a possibility to generate native-image for engine-runner.
Note that due to on-demand loading of stdlib, programs that make use of it are currently not yet supported
(that will be resolved at a later point).
The purpose of this PR is only to make sure that we can generate a bare minimum runner because due to lack TruffleBoundaries or misconfiguration in reflection config, this can get broken very easily.
To generate a native image simply execute:
```
sbt> engine-runner-native/buildNativeImage
... (wait a few minutes)
```
The executable is called `runner` and can be tested via a simple test that is in the resources. To illustrate the benefits
see the timings difference between the non-native and native one:
```
>time built-distribution/enso-engine-0.0.0-dev-linux-amd64/enso-0.0.0-dev/bin/enso --no-ir-caches --in-project test/Tests/ --run engine/runner-native/src/test/resources/Factorial.enso 6
720

real	0m4.503s
user	0m9.248s
sys	0m1.494s
> time ./runner --run engine/runner-native/src/test/resources/Factorial.enso 6
720

real	0m0.176s
user	0m0.042s
sys	0m0.038s
```

# Important Notes
Notice that due to a [bug in GraalVM](https://github.com/oracle/graal/issues/4200), which is already fixed in 22.x, and us still being on 21.x for the time being, I had to add a workaround to our sbt build to build a different fat jar for native image. To workaround it I had to exclude sqlite jar. Hence native image task is on `engine-runner-native` and not on `engine-runner`.

Will need to add the above command to CI.
2022-09-22 14:45:10 +00:00
Jaroslav Tulach
40ef4a01f1
Print result of main (if not Nothing) (#3696)
The goal of this request is to simplify hello world and other trivial Enso programs. No need to learn any standard library functions, enough to write:
```
main = "Hello World!"
```
and the result is going to be printed:
```bash
enso$ ./built-distribution/enso-engine-0.0.0-dev-linux-amd64/enso-0.0.0-dev/bin/enso --run hello.enso
'Hello World!'
```
the result is only printed, if it is not `Nothing`. E.g. if the last statement is `IO.print ...` (which returns `Nothing`), then no value is printed at the end by the launcher.
2022-09-12 15:37:46 +00:00
Marcin Kostrzewa
2a8201eb15
Remove a leftover debug print (#3676) 2022-08-31 12:28:41 +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
Hubert Plociniczak
1eec315ce1
Fix REPL runner (#3624)
`main` method is now special because it is trully static i.e. no
implicit `self` is being generated for it.
But since REPL's `main` isn't called `main` its invocation was missing
an argument.

Follow up on https://github.com/enso-org/enso/pull/3569

# Important Notes
Will work on adding a CI test for REPL to avoid problems with REPL in a
follow up PR.
2022-08-08 08:27:53 +00:00
Hubert Plociniczak
f63e40df1b
Explicit self (#3569)
This change modifies the current language by requiring explicit `self` parameter declaration
for methods. Methods without `self` parameter in the first position should be treated as statics
although that is not yet part of this PR. We add an implicit self to all methods
This obviously required updating the whole stdlib and its components, tests etc but the change
is pretty straightforward in the diff.

Notice that this change **does not** change method dispatch, which was removed in the last changes.
This was done on purpose to simplify the implementation for now. We will likely still remove all
those implicit selfs to bring true statics.
Minor caveat - since `main` doesn't actually need self, already removed that which simplified
a lot of code.
2022-07-27 17:45:36 +00:00