Clojure annotator.

Author: SimY4

src/main/kotlin/com/github/simy4/alabaster/ClojureAnnotator.kt

@@ -0,0 +1,41 @@
+package com.github.simy4.alabaster
+
+import com.intellij.lang.annotation.AnnotationHolder
+import com.intellij.lang.annotation.Annotator
+import com.intellij.lang.annotation.HighlightSeverity
+import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
+import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
+import cursive.lexer.ClojureTokenTypes
+import cursive.psi.ClojurePsiElement
+import cursive.psi.api.ClListLike
+
+class ClojureAnnotator: Annotator {
+  override fun annotate(element: PsiElement, holder: AnnotationHolder) {
+    val elementType = element.elementType
+    if (ClojureTokenTypes.SYMBOL_TOKEN == elementType) {
+      (element.parent.parent as? ClListLike)
+        ?.takeIf { it.type == ClojurePsiElement.LIST }
+        ?.let { list ->
+          val head = list.headText
+          when (head) {
+            "def"
+              , "defn"
+              , "defn-"
+              , "defmulti"
+              , "defmethod"
+              , "defmacro"
+              , "deftest"
+              , "definterface"
+              , "defprotocol"
+              , "deftype" ->
+                if (element.text !== head) {
+                  holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
+                    .textAttributes(DefaultLanguageHighlighterColors.FUNCTION_DECLARATION)
+                    .create()
+                }
+          }
+      }
+    }
+  }
+}

src/main/kotlin/com/github/simy4/alabaster/GoAnnotator.kt

@@ -6,12 +6,13 @@ import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 
 class GoAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if ((GoTypes.IDENTIFIER == elementType && "nil" == element.text)) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/JavaAnnotator.kt

@@ -6,14 +6,15 @@ import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.JavaTokenType
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 
 class JavaAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (JavaTokenType.TRUE_KEYWORD == elementType
       || JavaTokenType.FALSE_KEYWORD == elementType
       || JavaTokenType.NULL_KEYWORD == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/JavaScriptAnnotator.kt

@@ -6,14 +6,15 @@ import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.lang.javascript.JSTokenTypes
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 
 class JavaScriptAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (JSTokenTypes.TRUE_KEYWORD == elementType
       || JSTokenTypes.FALSE_KEYWORD == elementType
       || JSTokenTypes.NULL_KEYWORD == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/KotlinAnnotator.kt

@@ -5,14 +5,15 @@ import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 import org.jetbrains.kotlin.psi.stubs.elements.KtStubElementTypes
 
 class KotlinAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (KtStubElementTypes.BOOLEAN_CONSTANT == elementType
       || KtStubElementTypes.NULL == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/PythonAnnotator.kt

@@ -5,14 +5,15 @@ import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 import com.jetbrains.python.PyTokenTypes
 
 class PythonAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (PyTokenTypes.BOOL_LITERALS.contains(elementType)
       || PyTokenTypes.NONE_KEYWORD == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/RustAnnotator.kt

@@ -5,15 +5,16 @@ import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 import org.rust.lang.core.psi.RsElementTypes
 
 class RustAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (RsElementTypes.TRUE == elementType
       || RsElementTypes.FALSE == elementType
       || RsElementTypes.BOOL_LITERAL == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

src/main/kotlin/com/github/simy4/alabaster/ScalaAnnotator.kt

@@ -5,14 +5,15 @@ import com.intellij.lang.annotation.Annotator
 import com.intellij.lang.annotation.HighlightSeverity
 import com.intellij.openapi.editor.DefaultLanguageHighlighterColors
 import com.intellij.psi.PsiElement
+import com.intellij.psi.util.elementType
 import org.jetbrains.plugins.scala.lang.lexer.ScalaTokenTypes
 
 class ScalaAnnotator: Annotator {
   override fun annotate(element: PsiElement, holder: AnnotationHolder) {
-    val elementType = element.node.elementType
+    val elementType = element.elementType
     if (ScalaTokenTypes.BOOLEAN_TOKEN_SET.contains(elementType)
       || ScalaTokenTypes.kNULL == elementType) {
-      holder.newSilentAnnotation(HighlightSeverity.INFORMATION)
+      holder.newSilentAnnotation(HighlightSeverity.TEXT_ATTRIBUTES)
         .textAttributes(DefaultLanguageHighlighterColors.NUMBER)
         .create()
     }

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

@@ -32,6 +32,7 @@ Other languages work perfectly fine as well, but may do some extra unnecessary h
 ]]></description>
 
     <depends>com.intellij.modules.platform</depends>
+    <depends optional="true" config-file="with-clojure.xml">com.cursiveclojure.cursive</depends>
     <depends optional="true" config-file="with-go.xml">org.jetbrains.plugins.go</depends>
     <depends optional="true" config-file="with-java.xml">com.intellij.java</depends>
     <depends optional="true" config-file="with-javascript.xml">JavaScript</depends>

src/main/resources/META-INF/with-clojure.xml

@@ -0,0 +1,5 @@
+<idea-plugin>
+    <extensions defaultExtensionNs="com.intellij">
+        <annotator language="Clojure" implementationClass="com.github.simy4.alabaster.ClojureAnnotator"/>
+    </extensions>
+</idea-plugin>