usethesource / rascal-language-servers Goto Github PK

An LSP server for Rascal which includes an easy-to-use LSP generator for languages implemented in Rascal, and an interactive terminal REPL.

License: BSD 2-Clause "Simplified" License

Java 74.74% TypeScript 21.39% Shell 0.08% Rascal 1.27% JavaScript 0.37% RouterOS Script 2.15%

lsp-server generator rascal-mpl dsl vscode-language vscode-extension domain-specific-language language-server-protocol

rascal-language-servers's Introduction

Rascal - Language Servers

This project encapsulates both the Language Server Protocol (LSP) implementation of Rascal itself, and the LSP "generator" that can instantiate fresh LSPs for languages defined in or implemented in Rascal.

Currently we provide installers and client-specific features for VScode and no others.

This project is in beta stage; under development but used regularly by a group of early adopters. The VScode extension can be found here.

Origin story

2022 many contributions come from http://SWAT.engineering next to CWI SWAT.
2021--... You can consider this project an evolution of the https://github.com/usethesource/rascal-eclipse project, but it offers more and better features. On the other hand the rascal-eclipse project is still much more mature.
- - Includes "first level" generation of IDEs from language descriptions, just-like before
2009--... Rascal-eclipse merged from the Eclipse IMP project and the Rascal project, as an evolution of the earlier ASF+SDF Meta-Environment 2.x
- Rascal merges the functionality of ASF, SDF and RScript into a comprehensive and cohesive single language
- Scannerless top-down parsing
- Vallang extends to concepts of the ATerm library to include (immutable) sets and indexed relations
- Includes "first level" generation of IDEs from language descriptions
1998-2008 The ASF+SDF Meta-Environment 2.x was a language workbench based on:
- SDF - declarative syntax definition, scannerless GLR parsing
- ASF - conditional rewrite rules over concrete syntax
- RScript - relational calculus DSL for fact analysis
- ToolBus - strict separation of computation from coordination based on ACP
- ATerm library - maximal sharing of terms and automatic garbage collection
- A rewrite of its pre-decessor (see below) in C, Java, T-Script and ASF+SDF
- It offers the generation of interactive programming environments (IDEs)
1984-1998 That environment was an evolution of the earlier ASF+SDF system built in Centaur Lisp
- Generating Interactive Programming Environments from language definitions
- Incremental context-free general parser generation
- Incremental term rewriting engines

rascal-language-servers's People

Contributors

Stargazers

Watchers

Forkers

rodinaarssen standardgalactic jorrit05 yami2200 plse-lab linuswagner seanpm2001

rascal-language-servers's Issues

read-only editors for URI schemes project, std, lib should support LSP features

the current editor content provider for these schemes "work" in vscode, but the editors are "plaintext" only and do not offer syntax highlighting or reference resolution or an outline.

support util::IDE::registerLanguage and friends

Using vscode's ability to register new file extensions to an existing language we can reuse the design of the TermLanguageRegistry from the rascal-eclipse project to support generating vscode plugins for DLSs

implement new-rascal-project wizard

depends on pom.xml support.

Implement Rascal and DSL syntax highlighting all via the semantic highlighting feature of the vscode lsp

This is to skip the (lossy and semi-manual) mapping of Rascal grammars to tm grammars completely. we can use UPTR parse trees to generate tagged token streams. Code examples can be found in the vi, emacs and eclipse bindings of the Meta-Environment.

Proposal: use tmGrammar standard tags as the @category names in Rascal grammars and Rascal parse tree annotators from now on. And back-port this behavior to the Eclipse plugin as well.

semantic tokenizer and tokens that span more than one line

if tokens span more than one line(e.g. comment multilines) then the tokenizer is broken

provide tpl files for rascal library modules from the rascal-lsp jar file

the rascal-lsp library code is not type-checked at the moment. this means other people can not import it without a lot of spurious errors. This is a problem in particular for util::LanguageServer.

It has to be resolved by configuring the rascal maven plugin for the rascal-lsp project.

implement incremental compilation of Rascal

vsix file does not work

see build.sh; the vsix file that is produced is not functional. somehow the server is not connected.

implement auto-complete for Rascal

perhaps this must be added as a language contribution to util::IDE. util::REPL already has the interface for this, so I propose to synchronize these two.

missing IClassLoaderResolver implementation for project (and lib?) URI in VScode

...with the following effect:

INFO: detected |lib://rascal-lsp| at |jar+file:///Users/jurgenv/.vscode/extensions/usethesource.rascalmpl-0.0.1-SNAPSHOT/assets/jars/rascal-lsp.jar!/|
INFO: detected |lib://rascal| at |jar+file:///Users/jurgenv/.vscode/extensions/usethesource.rascalmpl-0.0.1-SNAPSHOT/assets/jars/rascal.jar!/|
INFO: detected |lib://rascal-core| at |jar+file:///Users/jurgenv/.vscode/extensions/usethesource.rascalmpl-0.0.1-SNAPSHOT/assets/jars/rascal-core.jar!/|
INFO: detected |lib://typepal| at |jar+file:///Users/jurgenv/.vscode/extensions/usethesource.rascalmpl-0.0.1-SNAPSHOT/assets/jars/typepal.jar!/|
WARNING: could not resolve required library: |lib://python-air|
WARNING: could not resolve required library: |lib://js-air|
Exception in thread "main" java.lang.RuntimeException: java.io.IOException: Can not resolve classloader for |lib://python-air|
        at org.rascalmpl.uri.classloaders.SourceLocationClassLoader.initialize(SourceLocationClassLoader.java:60)
        at org.rascalmpl.uri.classloaders.SourceLocationClassLoader.<init>(SourceLocationClassLoader.java:40)
        at org.rascalmpl.vscode.lsp.terminal.LSPTerminalREPL$1.constructEvaluator(LSPTerminalREPL.java:114)
        at org.rascalmpl.repl.RascalInterpreterREPL.initialize(RascalInterpreterREPL.java:74)
        at org.rascalmpl.repl.BaseREPL.initialize(BaseREPL.java:159)
        at org.rascalmpl.repl.BaseREPL.<init>(BaseREPL.java:113)

This is a project that has a Require-Libraries definition in RASCAL.MF with |lib://python-air| on it.

show editor for rascal source location value (including jumping to the right point in the file)

This requires communicating the contents of a source location to the IDE, instead of the other way around..

auto-complete authorities for a scheme and auto-complete registered schemes

this probably needs some extensions to the URIResolverRegistry in the rascal project, but I'd like to be able to auto-complete |pr to |project:// and project://ras/ to project://rascal and project://rascal-eclipse.

outline shows funny labels

re-implement Content client part (WebView) by communicating new content URIs directly to the lsp client

Currently we use the link detection framework of the LSP client to detect Content being served by the REPL. If issue #4 is solved we can do this in a better way.

Keyword `extend` not seen as keyword?

It seems that the extend keyword is missed in the highlighter

support project URI in the terminal REPL

Depends on issue #4 ; if we run the REPLs inside the kernel VM, we can communicate what project URIs are supposed to mean with the LSP client.

add LICENSE and license headers to each file

it is what it is

implement symbol lookup for Rascal

NPE in RascalTextDocumentService

Caused by: java.lang.NullPointerException
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.lambda$hover$5(RascalTextDocumentService.java:220)

I don't know the trigger.

implement all existing language contributions for DSLs from util::IDE from the rascal-eclipse project

semantic tokenizer + unicode

have to check and probably fix the semantic tokenizer in case higher unicode characters are used. problems with offsets.

locs in terminal are hyperlinks

depends on #28

implement folding for Rascal

Removing all declarations and uses of annotations from the standard library

We've tested and released Rascal versions which simulate the behavior of annotation declarations and uses via the keyword field feature.
This works well. The standard library being the biggest user of this feature (like ParseTree.rsc)
We can now start removing all the declarations and uses of annotation syntax and replacing it by keyword field syntax with the same semantics
There is already a refactoring script which can do this automatically (lang::rascal::refactoring::upgrade) on one of the annotation branches. This could be revived.
After this refactoring the standard library will be rid of all the deprecation warnings by the type-checker and be a better model of how to write typical Rascal code again.

Add run/debug on top of main functions

Add a code-lens (or whatever is the right LSP feature) so that you can run a rascal module automatically from the vs code ide.

Similarly on a module, to do an import.

NPE in hover on filesystemprovider branch

Actually it looks like summaries can not be provided on that branch anymore.

[Error - 4:56:22 PM] Request textDocument/hover failed.
Message: Internal error.
Code: -32603
java.util.concurrent.CompletionException: java.lang.NullPointerException
at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:618)
at java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:628)
at java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:1996)
at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.hover(RascalTextDocumentService.java:220)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120)
at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261)
at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190)
at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.lambda$7(RascalTextDocumentService.java:220)
at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:616)
... 19 more

terminal does not start anymore

The terminal process "/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/bin/java '-cp', 
'/Users/jurgenv/git/rascal-vscode/rascal-vscode-extension/dist/rascal-lsp.jar', '-Drascal.useSystemBrowser=false', 
'org.rascalmpl.shell.RascalShell'" terminated with exit code: 1.

this happens both in deploy mode and in !deploy mode

support registration of dynamic new token types in semantic tokenizer

with font properties and such. this would be a new feature next to the semantic tokenization feature and add styles for new category names.

implement jump-to-definition for Rascal

terminal does not link class files from current project or class files from libraries we depend on

see subject. the result is that bespoke Java code which is called from Rascal code throws exceptions about missing classes.

this has to be solved via the classloaders parameter of pathConfig and using that to add classloaders to the interpreter's configuration.

Implement new outline function that generates structure like LSP likes

Can't create/edit Rascal file in VSCode

As soon as I try to edit a new empty file with the Rascal type (created via File -> New file, and via "Select a language" set to Rascal) I get a lengthy traceback in the output window. This is with:

VSCode Version: 1.58.0
Commit: 2d23c42a936db1c7b3b06f918cde29561cc47cd6
Date: 2021-07-08T06:54:17.694Z
Electron: 12.0.13
Chrome: 89.0.4389.128
Node.js: 14.16.0
V8: 8.9.255.25-electron.0
OS: Darwin x64 20.5.0

2021-07-12 13:11:14,566 main DEBUG null 1.0.0-SNAPSHOT initializing configuration org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration@4e7dc304
2021-07-12 13:11:14,579 main DEBUG Installed 1 script engine
2021-07-12 13:11:14,652 main DEBUG Attempting to use org.apache.logging.log4j.jul.CoreLoggerAdapter
2021-07-12 13:11:14,654 main INFO Registered Log4j as the java.util.logging.LogManager.
2021-07-12 13:11:15,089 main DEBUG Oracle Nashorn version: 1.8.0_292, language: ECMAScript, threading: Not Thread Safe, compile: true, names: [nashorn, Nashorn, js, JS, JavaScript, javascript, ECMAScript, ecmascript], factory class: jdk.nashorn.api.scripting.NashornScriptEngineFactory
2021-07-12 13:11:15,089 main DEBUG PluginManager 'Core' found 122 plugins
2021-07-12 13:11:15,090 main DEBUG PluginManager 'Level' found 0 plugins
2021-07-12 13:11:15,097 main DEBUG PluginManager 'Lookup' found 16 plugins
2021-07-12 13:11:15,099 main DEBUG Building Plugin[name=AppenderRef, class=org.apache.logging.log4j.core.config.AppenderRef].
2021-07-12 13:11:15,125 main DEBUG PluginManager 'TypeConverter' found 26 plugins
2021-07-12 13:11:15,137 main DEBUG createAppenderRef(ref="Console", level="null", Filter=null)
2021-07-12 13:11:15,138 main DEBUG Building Plugin[name=root, class=org.apache.logging.log4j.core.config.LoggerConfig$RootLogger].
2021-07-12 13:11:15,145 main DEBUG createLogger(additivity="null", level="DEBUG", includeLocation="null", ={Console}, ={}, Configuration(DefaultLogger), Filter=null)
2021-07-12 13:11:15,148 main DEBUG Building Plugin[name=loggers, class=org.apache.logging.log4j.core.config.LoggersPlugin].
2021-07-12 13:11:15,151 main DEBUG createLoggers(={root})
2021-07-12 13:11:15,151 main DEBUG Building Plugin[name=layout, class=org.apache.logging.log4j.core.layout.PatternLayout].
2021-07-12 13:11:15,189 main DEBUG PatternLayout$Builder(pattern="%d [%t] %p - %c %m%n", PatternSelector=null, Configuration(DefaultLogger), Replace=null, charset="null", alwaysWriteExceptions="null", disableAnsi="null", noConsoleNoAnsi="null", header="null", footer="null")
2021-07-12 13:11:15,189 main DEBUG PluginManager 'Converter' found 44 plugins
2021-07-12 13:11:15,249 main DEBUG Building Plugin[name=appender, class=org.apache.logging.log4j.core.appender.ConsoleAppender].
2021-07-12 13:11:15,262 main DEBUG ConsoleAppender$Builder(target="SYSTEM_ERR", follow="null", direct="null", bufferedIo="null", bufferSize="null", immediateFlush="null", ignoreExceptions="null", PatternLayout(%d [%t] %p - %c %m%n), name="Console", Configuration(DefaultLogger), Filter=null, ={})
2021-07-12 13:11:15,270 main DEBUG Starting OutputStreamManager SYSTEM_ERR.false.false
2021-07-12 13:11:15,270 main DEBUG Building Plugin[name=appenders, class=org.apache.logging.log4j.core.config.AppendersPlugin].
2021-07-12 13:11:15,271 main DEBUG createAppenders(={Console})
2021-07-12 13:11:15,271 main DEBUG Configuration org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration@4e7dc304 initialized
2021-07-12 13:11:15,283 main DEBUG Starting configuration org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration@4e7dc304
2021-07-12 13:11:15,284 main DEBUG Started configuration org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration@4e7dc304 OK.
2021-07-12 13:11:15,286 main DEBUG Shutting down OutputStreamManager SYSTEM_OUT.false.false-1
2021-07-12 13:11:15,287 main DEBUG OutputStream closed
2021-07-12 13:11:15,289 main DEBUG Shut down OutputStreamManager SYSTEM_OUT.false.false-1, all resources released: true
2021-07-12 13:11:15,290 main DEBUG Appender DefaultConsole-1 stopped with status true
2021-07-12 13:11:15,290 main DEBUG Stopped org.apache.logging.log4j.core.config.DefaultConfiguration@1055e4af OK
2021-07-12 13:11:15,369 main DEBUG Registering MBean org.apache.logging.log4j2:type=7852e922
2021-07-12 13:11:15,376 main DEBUG Registering MBean org.apache.logging.log4j2:type=7852e922,component=StatusLogger
2021-07-12 13:11:15,378 main DEBUG Registering MBean org.apache.logging.log4j2:type=7852e922,component=ContextSelector
2021-07-12 13:11:15,379 main DEBUG Registering MBean org.apache.logging.log4j2:type=7852e922,component=Loggers,name=
2021-07-12 13:11:15,379 main DEBUG Registering MBean org.apache.logging.log4j2:type=7852e922,component=Appenders,name=Console
2021-07-12 13:11:15,380 main DEBUG org.apache.logging.log4j.core.util.SystemClock does not support precise timestamps.
2021-07-12 13:11:15,381 main DEBUG Reconfiguration complete for context[name=7852e922] at URI NULL_SOURCE (org.apache.logging.log4j.core.LoggerContext@43738a82) with optional ClassLoader: null
2021-07-12 13:11:15,381 main DEBUG Shutdown hook enabled. Registering a new one.
2021-07-12 13:11:15,382 main DEBUG LoggerContext[name=7852e922, org.apache.logging.log4j.core.LoggerContext@43738a82] started OK.
2021-07-12 13:11:15,395 [main] INFO - org.rascalmpl.vscode.lsp.BaseLanguageServer Starting Rascal Language Server: 1.0.0-SNAPSHOT at ${maven.build.timestamp}
INFO: detected |lib://rascal-lsp| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal-lsp.jar!/|
INFO: detected |lib://rascal| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal.jar!/|
INFO: detected |lib://rascal-core| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal-core.jar!/|
INFO: detected |lib://typepal| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/typepal.jar!/|
INFO: resolved |lib://typepal| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/typepal.jar!/|
INFO: resolved |lib://typepal| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/typepal.jar!/|
INFO: resolved |lib://typepal| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/typepal.jar!/|
INFO: resolved |lib://rascal-core| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal-core.jar!/|
INFO: resolved |lib://rascal-core| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal-core.jar!/|
INFO: resolved |lib://rascal-lsp| at |jar+file:///Users/fniessink/.vscode/extensions/usethesource.rascalmpl-0.0.3/assets/jars/rascal-lsp.jar!/|
2021-07-12 13:11:16,052 [pool-3-thread-1] INFO - org.rascalmpl.vscode.lsp.BaseLanguageServer.ActualLanguageServer LSP connection started
2021-07-12 13:11:16,090 [pool-3-thread-1] DEBUG - org.rascalmpl.vscode.lsp.BaseLanguageServer.ActualLanguageServer Initialized LSP connection with capabilities: InitializeResult [
  capabilities = ServerCapabilities [
    textDocumentSync = Either [
      left = Full
      right = null
    ]
    hoverProvider = Either [
      left = true
      right = null
    ]
    completionProvider = null
    signatureHelpProvider = null
    definitionProvider = Either [
      left = true
      right = null
    ]
    typeDefinitionProvider = null
    implementationProvider = null
    referencesProvider = null
    documentHighlightProvider = null
    documentSymbolProvider = Either [
      left = true
      right = null
    ]
    workspaceSymbolProvider = null
    codeActionProvider = null
    codeLensProvider = CodeLensOptions [
      resolveProvider = false
      workDoneProgress = null
    ]
    documentFormattingProvider = null
    documentRangeFormattingProvider = null
    documentOnTypeFormattingProvider = null
    renameProvider = null
    documentLinkProvider = null
    colorProvider = null
    foldingRangeProvider = null
    declarationProvider = null
    executeCommandProvider = null
    workspace = null
    typeHierarchyProvider = null
    callHierarchyProvider = null
    selectionRangeProvider = null
    linkedEditingRangeProvider = null
    semanticTokensProvider = SemanticTokensWithRegistrationOptions [
      legend = SemanticTokensLegend [
        tokenTypes = ArrayList (
          "entity.name",
          "entity.other.inherited-class",
          "entity.name.section",
          "entity.name.tag",
          "entity.other.attribute-name",
          "variable",
          "variable.language",
          "variable.parameter",
          "variable.function",
          "constant",
          "constant.numeric",
          "constant.language",
          "constant.character.escape",
          "storage.type",
          "storage.modifier",
          "support",
          "keyword",
          "keyword.control",
          "keyword.operator",
          "keyword.declaration",
          "string",
          "comment",
          "invalid",
          "invalid.deprecated",
          "comment.block.documentation",
          "comment.block",
          "comment.single",
          "comment",
          "constant.character.escape",
          "constant.language",
          "constant.numeric.complex.imaginary",
          "constant.numeric.complex.real",
          "constant.numeric.complex",
          "constant.numeric.float.binary",
          "constant.numeric.float.decimal",
          "constant.numeric.float.hexadecimal",
          "constant.numeric.float.octal",
          "constant.numeric.float.other",
          "constant.numeric.float",
          "constant.numeric.integer.binary",
          "constant.numeric.integer.decimal",
          "constant.numeric.integer.hexadecimal",
          "constant.numeric.integer.octal",
          "constant.numeric.integer.other",
          "constant.numeric.integer",
          "constant.numeric",
          "constant.other.placeholder",
          "constant.other",
          "constant",
          "entity.name.class.forward-decl",
          "entity.name.class",
          "entity.name.constant",
          "entity.name.enum",
          "entity.name.function.constructor",
          "entity.name.function.destructor",
          "entity.name.function",
          "entity.name.impl",
          "entity.name.interface",
          "entity.name.label",
          "entity.name.namespace",
          "entity.name.section",
          "entity.name.struct",
          "entity.name.tag",
          "entity.name.trait",
          "entity.name.type",
          "entity.name.union",
          "entity.name",
          "entity.other.attribute-name",
          "entity.other.inherited-class",
          "entity",
          "invalid.deprecated",
          "invalid.illegal",
          "invalid",
          "keyword.control.conditional",
          "keyword.control.import",
          "keyword.control",
          "keyword.declaration.class",
          "keyword.declaration.enum",
          "keyword.declaration.function",
          "keyword.declaration.impl",
          "keyword.declaration.interface",
          "keyword.declaration.struct",
          "keyword.declaration.trait",
          "keyword.declaration.type",
          "keyword.declaration.union",
          "keyword.declaration",
          "keyword.operator.arithmetic",
          "keyword.operator.assignment",
          "keyword.operator.bitwise",
          "keyword.operator.logical",
          "keyword.operator.word",
          "keyword.operator",
          "keyword.other",
          "keyword",
          "markup.bold",
          "markup.deleted",
          "markup.heading",
          "markup.inserted",
          "markup.italic",
          "markup.list.numbered",
          "markup.list.unnumbered",
          "markup.other",
          "markup.quote",
          "markup.raw.block",
          "markup.raw.inline",
          "markup.underline.link",
          "markup.underline",
          "markup",
          "meta.annotation.identifier",
          "meta.annotation.parameters",
          "meta.annotation",
          "meta.block",
          "meta.braces",
          "meta.brackets",
          "meta.class",
          "meta.enum",
          "meta.function-call",
          "meta.function.parameters",
          "meta.function.return-type",
          "meta.function",
          "meta.group",
          "meta.impl",
          "meta.interface",
          "meta.interpolation",
          "meta.namespace",
          "meta.paragraph",
          "meta.parens",
          "meta.path",
          "meta.preprocessor",
          "meta.string",
          "meta.struct",
          "meta.tag",
          "meta.toc-list",
          "meta.trait",
          "meta.type",
          "meta.union",
          "meta",
          "punctuation.accessor",
          "punctuation.definition.annotation",
          "punctuation.definition.comment",
          "punctuation.definition.keyword",
          "punctuation.definition.string.begin",
          "punctuation.definition.string.end",
          "punctuation.definition.variable",
          "punctuation.section.block.begin",
          "punctuation.section.block.end",
          "punctuation.section.braces.begin",
          "punctuation.section.braces.end",
          "punctuation.section.brackets.begin",
          "punctuation.section.brackets.end",
          "punctuation.section.group.begin",
          "punctuation.section.group.end",
          "punctuation.section.interpolation.begin",
          "punctuation.section.interpolation.end",
          "punctuation.section.parens.begin",
          "punctuation.section.parens.end",
          "punctuation.separator.continuation",
          "punctuation.separator",
          "punctuation.terminator",
          "source",
          "storage.modifier",
          "storage.type.class",
          "storage.type.enum",
          "storage.type.function",
          "storage.type.impl",
          "storage.type.interface",
          "storage.type.struct",
          "storage.type.trait",
          "storage.type.union",
          "storage.type",
          "storage.type",
          "string.quoted.double",
          "string.quoted.other",
          "string.quoted.single",
          "string.quoted.triple",
          "string.regexp",
          "string.unquoted",
          "string",
          "support.class",
          "support.constant",
          "support.function",
          "support.module",
          "support.type",
          "text.html",
          "text.xml",
          "text",
          "variable.annotation",
          "variable.function",
          "variable.language",
          "variable.other.constant",
          "variable.other.member",
          "variable.other.readwrite",
          "variable.other",
          "variable.parameter"
        )
        tokenModifiers = EmptyList ()
      ]
      range = null
      full = Either [
        left = true
        right = null
      ]
      documentSelector = null
      id = null
      workDoneProgress = null
    ]
    monikerProvider = null
    experimental = null
  ]
  serverInfo = null
]
2021-07-12 13:11:16,181 [pool-3-thread-1] DEBUG - org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService Open file: TextDocumentItem [
  uri = "untitled:Untitled-1"
  languageId = "rascalmpl"
  version = 1
  text = ""
]
2021-07-12 13:11:16,204 [pool-3-thread-1] WARN - org.eclipse.lsp4j.jsonrpc.RemoteEndpoint Notification threw an exception: {
  "jsonrpc": "2.0",
  "method": "textDocument/didOpen",
  "params": {
    "textDocument": {
      "uri": "untitled:Untitled-1",
      "languageId": "rascalmpl",
      "version": 1,
      "text": ""
    }
  }
}
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.notify(GenericEndpoint.java:152) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleNotification(RemoteEndpoint.java:220) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:187) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113) [rascal-lsp.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_292]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_292]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166) ~[rascal.jar:?]
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416) ~[rascal.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:42) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.open(RascalTextDocumentService.java:253) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.didOpen(RascalTextDocumentService.java:152) ~[rascal-lsp.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
2021-07-12 13:11:16,429 [pool-3-thread-1] ERROR - org.eclipse.lsp4j.jsonrpc.RemoteEndpoint Internal error: java.lang.reflect.InvocationTargetException
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113) [rascal-lsp.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_292]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_292]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166) ~[rascal.jar:?]
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416) ~[rascal.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.codeLens(RascalTextDocumentService.java:311) ~[rascal-lsp.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
[Error - 1:11:16 PM] Request textDocument/codeLens failed.
  Message: Internal error.
  Code: -32603 
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111)
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222)
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166)
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.codeLens(RascalTextDocumentService.java:311)
	... 16 more

2021-07-12 13:11:16,517 [pool-3-thread-1] DEBUG - org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService semanticTokensFull: TextDocumentIdentifier [
  uri = "untitled:Untitled-1"
]
2021-07-12 13:11:16,518 [pool-3-thread-1] ERROR - org.eclipse.lsp4j.jsonrpc.RemoteEndpoint Internal error: java.lang.reflect.InvocationTargetException
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113) [rascal-lsp.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_292]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_292]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166) ~[rascal.jar:?]
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416) ~[rascal.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getSemanticTokens(RascalTextDocumentService.java:274) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.semanticTokensFull(RascalTextDocumentService.java:288) ~[rascal-lsp.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
[Error - 1:11:16 PM] Request textDocument/semanticTokens/full failed.
  Message: Internal error.
  Code: -32603 
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111)
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222)
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166)
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getSemanticTokens(RascalTextDocumentService.java:274)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.semanticTokensFull(RascalTextDocumentService.java:288)
	... 16 more

2021-07-12 13:11:22,526 [pool-3-thread-1] ERROR - org.eclipse.lsp4j.jsonrpc.RemoteEndpoint Internal error: java.lang.reflect.InvocationTargetException
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120) ~[rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94) [rascal-lsp.jar:?]
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113) [rascal-lsp.jar:?]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_292]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_292]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_292]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_292]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222) ~[rascal.jar:?]
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166) ~[rascal.jar:?]
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416) ~[rascal.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258) ~[rascal-lsp.jar:?]
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.codeLens(RascalTextDocumentService.java:311) ~[rascal-lsp.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_292]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_292]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_292]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_292]
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65) ~[rascal-lsp.jar:?]
	... 11 more
[Error - 1:11:22 PM] Request textDocument/codeLens failed.
  Message: Internal error.
  Code: -32603 
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
	... 11 more
Caused by: java.lang.UnsupportedOperationException: Opaque URI schemes are not supported; the scheme-specific part must start with a / character.
	at io.usethesource.vallang.impl.primitive.SourceLocationValues.newSourceLocation(SourceLocationValues.java:111)
	at io.usethesource.vallang.impl.primitive.AbstractPrimitiveValueFactory.sourceLocation(AbstractPrimitiveValueFactory.java:222)
	at io.usethesource.vallang.impl.fields.AbstractValueFactoryAdapter.sourceLocation(AbstractValueFactoryAdapter.java:166)
	at org.rascalmpl.uri.URIUtil.createFromURI(URIUtil.java:416)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:51)
	at org.rascalmpl.vscode.lsp.util.locations.Locations.toLoc(Locations.java:46)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.getFile(RascalTextDocumentService.java:258)
	at org.rascalmpl.vscode.lsp.rascal.RascalTextDocumentService.codeLens(RascalTextDocumentService.java:311)
	... 16 more

pathConfig for summary provider and incremental builder in Rascal LSP is incomplete/broken

Describe the bug

the source path for the current project is not configured correctly, as the type checker can not even find modules in the same project.

definition throws NPE's

[Error - 10:14:52 AM] Request textDocument/definition failed.
  Message: Internal error.
  Code: -32603 
java.util.concurrent.CompletionException: java.lang.NullPointerException
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.

NPE in registerLanguage

rascal>testPicoLanguageContribution()
|lib://rascal-lsp/util/LanguageServer.rsc|(4722,106,<133,0>,<134,42>): Java("NullPointerException","")
        at org.rascalmpl.vscode.lsp.parametric.RascalInterface.registerLanguage(|unknown:///RascalInterface.java|(0,0,<46,0>,<46,0>))
        at sun.reflect.NativeMethodAccessorImpl.invoke0(|unknown:///NativeMethodAccessorImpl.java|(0,0,<0,0>,<0,0>))
        at registerLanguage(|lib://rascal-lsp/util/TestIDE.rsc|(2536,25,<66,12>,<66,37>))
        at $shell$(|prompt:///|(0,21,<1,0>,<1,21>)ok

NPEs while typing

java.util.concurrent.CompletionException: java.lang.NullPointerException
	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:604)
	at java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:614)
	at java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:1983)
	at org.rascalmpl.vscode.lsp.RascalTextDocumentService.definition(RascalTextDocumentService.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:120)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:261)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:190)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
	at org.rascalmpl.vscode.lsp.RascalTextDocumentService.lambda$definition$1(RascalTextDocumentService.java:179)
	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)

outline shows no nesting

Design framework/library for invalidating/canceling futures that are replaced

Source locations are rendered as comments starting from the `//`

progress visual while computing summaries

both the Rascal and parametric LSP lack visual confirmation that "something is going on", in particular when waiting for links to resolve or when a parser is generated.

Let's:

add support for interacting with the Progress feature from LSP directly from Rascal, using util::Monitor
add progress bar interactions with informative labels, around possibly long running language services (such as parser generation while highlighting and summary computation while resolving a reference)

support many more token names in semantic tokenizer (e.g. all the ones offered by the default textmate grammars?)

currently we support only the basic categories from util::IDE.

implement reloading of dirty modules for terminal

pathConfig for Rascal terminal is broken (source files can not be found)

seems that RASCAL.MF file is not used to configure the terminal's configuration.

Terminal starter learns Classpath setup from maven if present

Perhaps this should also be a feature of the commandline shell. Mvn can relatively easily print the compile time Classpath.

infinite recursion while testing pico language in util::TestIDE

registering the language triggers the following StackOverflow():

java.lang.StackOverflowError
	at io.usethesource.vallang.type.Type.intersectsWithExternal(Type.java:706)
	at io.usethesource.vallang.type.ExternalType.intersects(ExternalType.java:62)
	at io.usethesource.vallang.type.Type.intersectsWithExternal(Type.java:706)
	at io.usethesource.vallang.type.ExternalType.intersects(ExternalType.java:6
	...

Make rascal-core typechecker return summary to avoid race

Currently, summaries are cleared when a file is saved.

But you can read summaries while the typechecker is still running, to avoid this race, the check function of rascal core should also return the summary of the module it just checked. In that way we can combine that future as a dependency on the check future.

@PaulKlint indicated it would be relatively easy to add.

So if a register language comes by, it should start the LSP server of the DSLs on the fly.

implement folding for DSLs

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