add ast file type

src/main/java/org/jastadd/tooling/grammar/GrammarFileType.java

@@ -18,19 +18,19 @@ public class GrammarFileType extends LanguageFileType {
   @NotNull
   @Override
   public String getName() {
-    return "RelAst Grammar";
+    return "JastAdd Grammar";
   }
 
   @NotNull
   @Override
   public String getDescription() {
-    return "Relational RAG Grammar";
+    return "JastAdd RAG Grammar";
   }
 
   @NotNull
   @Override
   public String getDefaultExtension() {
-    return "relast";
+    return "ast";
   }
 
   @Nullable

src/main/java/org/jastadd/tooling/grammar/RelAstFileType.java

+package org.jastadd.tooling.grammar;
+
+import com.intellij.openapi.fileTypes.LanguageFileType;
+import org.jastadd.tooling.util.JastAddIcons;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import javax.swing.*;
+
+public class RelAstFileType extends LanguageFileType {
+
+  public static final RelAstFileType INSTANCE = new RelAstFileType();
+
+  private RelAstFileType() {
+    super(Grammar.INSTANCE);
+  }
+
+  @NotNull
+  @Override
+  public String getName() {
+    return "RelAst Grammar";
+  }
+
+  @NotNull
+  @Override
+  public String getDescription() {
+    return "Relational RAG Grammar";
+  }
+
+  @NotNull
+  @Override
+  public String getDefaultExtension() {
+    return "relast";
+  }
+
+  @Nullable
+  @Override
+  public Icon getIcon() {
+    return JastAddIcons.FILE;
+  }
+
+}

src/main/resources/META-INF/plugin.xml

@@ -11,7 +11,9 @@
 
     <extensions defaultExtensionNs="com.intellij">
         <!-- Add your extensions here -->
-        <fileType name="RelAst Grammar" implementationClass="org.jastadd.tooling.grammar.GrammarFileType"
+        <fileType name="JastAdd Grammar" implementationClass="org.jastadd.tooling.grammar.GrammarFileType"
+                  fieldName="INSTANCE" language="JastAddGrammar" extensions="ast"/>
+        <fileType name="RelAst Grammar" implementationClass="org.jastadd.tooling.grammar.RelAstFileType"
                   fieldName="INSTANCE" language="JastAddGrammar" extensions="relast"/>
         <lang.parserDefinition language="JastAddGrammar"
                                implementationClass="org.jastadd.tooling.grammar.parser.GrammarParserDefinition"/>