Minor fixes to compiler protocol

compiler/src/main/scala/com/rawlabs/compiler/CompilerServiceProvider.scala

@@ -54,11 +54,11 @@ object CompilerServiceProvider {
   private def build(language: String)(implicit settings: RawSettings): CompilerService = {
     val services = ServiceLoader.load(classOf[CompilerServiceBuilder]).asScala.toArray
     if (services.isEmpty) {
-      throw new CompilerException("no compiler service available")
+      throw new AssertionError("no compiler service available")
     } else {
       services.find(p => p.language.contains(language)) match {
         case Some(builder) => builder.build
-        case None => throw new CompilerException(s"cannot find compiler service: $language")
+        case None => throw new AssertionError(s"cannot find compiler service: $language")
       }
     }
   }

compiler/src/main/scala/com/rawlabs/compiler/Errors.scala

@@ -12,29 +12,15 @@
 
 package com.rawlabs.compiler
 
-import com.fasterxml.jackson.annotation.{JsonSubTypes, JsonTypeInfo}
-import com.fasterxml.jackson.annotation.JsonSubTypes.{Type => JsonType}
-import com.rawlabs.utils.core.RawException
-
 /**
  * Used for errors that are found during semantic analysis.
- * message The error message.
- * positions The positions where the error occurred.
- * severity The severity of the error. 1 = Hint, 2 = Info, 4 = Warning, 8 = Error (compliant with monaco editor).
- * - The below two should only be set by compiler errors
- * code An optional error code.
- * tags Indication for the error Unnecessary = 1, Deprecated = 2 (compliant with monaco editor).
+ *
+ * - message: The error message.
+ * - positions: The positions where the error occurred.
+ * - severity: The severity of the error. 1 = Hint, 2 = Info, 4 = Warning, 8 = Error (compliant with monaco editor).
+ * - code: An optional error code (should only be set by compiler errors)
+ * - tags: Indication for the error Unnecessary = 1, Deprecated = 2 (compliant with monaco editor).
  */
-
-@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type")
-@JsonSubTypes(
-  Array(
-    new JsonType(value = classOf[HintMessage], name = "hint"),
-    new JsonType(value = classOf[InfoMessage], name = "info"),
-    new JsonType(value = classOf[WarningMessage], name = "warning"),
-    new JsonType(value = classOf[ErrorMessage], name = "hint")
-  )
-)
 sealed trait Message {
   val message: String
   val positions: List[ErrorRange]
@@ -77,18 +63,3 @@ final case class ErrorMessage(
 
 final case class ErrorRange(begin: ErrorPosition, end: ErrorPosition)
 final case class ErrorPosition(line: Int, column: Int)
-
-/**
- * Used for exceptions that are thrown by the compiler itself.
- * Must abort compilation.
- * Should NOT BE USED for:
- * - semantic analysis errors or other normal errors since there is no tracking of positions.
- * - errors during execution.
- * Should BE USED for:
- * - errors that are not found during type checking but which prevent the compiler from proceeding, e.g.
- *   missing implementations or the like.
- * Parsing may throw this exception if they encounter an error that they cannot recover from.
- *
- * The message can be safely shared with the user.
- */
-sealed class CompilerException(message: String, cause: Throwable = null) extends RawException(message, cause)

protocol-compiler/src/main/protobuf/com/rawlabs/protocol/compiler/completions.proto

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2024 RAW Labs S.A.
+ *
+ * Use of this software is governed by the Business Source License
+ * included in the file licenses/BSL.txt.
+ *
+ * As of the Change Date specified in that file, in accordance with
+ * the Business Source License, use of this software will be governed
+ * by the Apache License, Version 2.0, included in the file
+ * licenses/APL.txt.
+ */
+
+syntax = "proto3";
+
+option java_package = "com.rawlabs.protocol.compiler";
+option java_multiple_files = true;
+
+import "com/rawlabs/protocol/compiler/docs.proto";
+
+package com.rawlabs.protocol.compiler;
+
+message Completion {
+  oneof completion {
+    TypeCompletion type = 1;
+    FieldCompletion field = 2;
+    LetBindCompletion letBind = 3;
+    LetFunCompletion letFun = 4;
+    LetFunRecCompletion letFunRec = 5;
+    FunParamCompletion funParam = 6;
+    PackageCompletion package = 7;
+    EntryCompletion entry = 8;
+  }
+}
+
+message TypeCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message FieldCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message LetBindCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message LetFunCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message LetFunRecCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message FunParamCompletion {
+  string name = 1;
+  string type = 2;
+}
+
+message PackageCompletion {
+  string name = 1;
+  PackageDoc doc = 2;
+}
+
+message EntryCompletion {
+  string name = 1;
+  EntryDoc doc = 2;
+}

protocol-compiler/src/main/protobuf/com/rawlabs/protocol/compiler/docs.proto

@@ -24,11 +24,6 @@ message PackageDoc {
   optional string danger = 4;
 }
 
-message EntryCompletion {
-  string name = 1;
-  EntryDoc doc = 2;
-}
-
 message EntryDoc {
   string summary = 1;
   optional string description = 2;