PSI: Added addAnnotationEntry() function

compiler/frontend/src/org/jetbrains/kotlin/psi/JetDeclarationImpl.java

@@ -56,6 +56,12 @@ abstract class JetDeclarationImpl extends JetExpressionImpl implements JetDeclar
         AddRemoveModifierPackage.removeModifier(this, modifier);
     }
 
+    @NotNull
+    @Override
+    public JetAnnotationEntry addAnnotationEntry(@NotNull JetAnnotationEntry annotationEntry) {
+        return AddRemoveModifierPackage.addAnnotationEntry(this, annotationEntry);
+    }
+
     @NotNull
     @Override
     public List<JetAnnotationEntry> getAnnotationEntries() {

compiler/frontend/src/org/jetbrains/kotlin/psi/JetModifierListOwner.java

@@ -29,4 +29,7 @@ public interface JetModifierListOwner extends PsiElement, JetAnnotated {
 
     void addModifier(@NotNull JetModifierKeywordToken modifier);
     void removeModifier(@NotNull JetModifierKeywordToken modifier);
+
+    @NotNull
+    JetAnnotationEntry addAnnotationEntry(@NotNull JetAnnotationEntry annotationEntry);
 }

compiler/frontend/src/org/jetbrains/kotlin/psi/JetModifierListOwnerStub.java

@@ -60,6 +60,12 @@ public class JetModifierListOwnerStub<T extends StubElement<?>> extends JetEleme
         AddRemoveModifierPackage.removeModifier(this, modifier);
     }
 
+    @NotNull
+    @Override
+    public JetAnnotationEntry addAnnotationEntry(@NotNull JetAnnotationEntry annotationEntry) {
+        return AddRemoveModifierPackage.addAnnotationEntry(this, annotationEntry);
+    }
+
     @Override
     @NotNull
     public List<JetAnnotationEntry> getAnnotationEntries() {

compiler/frontend/src/org/jetbrains/kotlin/psi/JetPrimaryConstructor.kt

@@ -43,4 +43,16 @@ public class JetPrimaryConstructor : JetConstructor<JetPrimaryConstructor> {
             addBefore(newModifierList, parameterList)
         }
     }
+
+    override fun addAnnotationEntry(annotationEntry: JetAnnotationEntry): JetAnnotationEntry {
+        val modifierList = getModifierList()
+        return if (modifierList != null) {
+            modifierList.addBefore(annotationEntry, modifierList.firstChild) as JetAnnotationEntry
+        }
+        else {
+            val parameterList = getValueParameterList()!!
+            val newModifierList = JetPsiFactory(getProject()).createModifierList(annotationEntry.text)
+            (addBefore(newModifierList, parameterList) as JetModifierList).annotationEntries.first()
+        }
+    }
 }

compiler/frontend/src/org/jetbrains/kotlin/psi/addRemoveModifier.kt

@@ -16,33 +16,44 @@
 
 package org.jetbrains.kotlin.psi.addRemoveModifier
 
+import com.intellij.psi.PsiComment
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiWhiteSpace
 import org.jetbrains.kotlin.lexer.JetModifierKeywordToken
 import org.jetbrains.kotlin.lexer.JetTokens.*
-import com.intellij.psi.PsiComment
-import com.intellij.psi.PsiWhiteSpace
-import org.jetbrains.kotlin.psi.JetModifierListOwner
-import org.jetbrains.kotlin.psi.JetPsiFactory
-import com.intellij.psi.PsiElement
-import org.jetbrains.kotlin.psi.JetAnnotation
-import org.jetbrains.kotlin.psi.JetModifierList
+import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.siblings
 
+private fun createModifierList(text: String, owner: JetModifierListOwner): JetModifierList {
+    val newModifierList = JetPsiFactory(owner).createModifierList(text)
+    val anchor = owner.firstChild!!
+            .siblings(forward = true)
+            .dropWhile { it is PsiComment || it is PsiWhiteSpace }
+            .first()
+    return owner.addBefore(newModifierList, anchor) as JetModifierList
+}
+
 internal fun addModifier(owner: JetModifierListOwner, modifier: JetModifierKeywordToken, defaultVisibilityModifier: JetModifierKeywordToken) {
-    val modifierList = owner.getModifierList()
+    val modifierList = owner.modifierList
     if (modifierList == null) {
         if (modifier == defaultVisibilityModifier) return
-
-        val newModifierList = JetPsiFactory(owner).createModifierList(modifier)
-        val anchor = owner.getFirstChild()!!.siblings(forward = true)
-                .dropWhile { it is PsiComment || it is PsiWhiteSpace }
-                .first()
-        owner.addBefore(newModifierList, anchor)
+        createModifierList(modifier.value, owner)
     }
     else {
         addModifier(modifierList, modifier, defaultVisibilityModifier)
     }
 }
 
+internal fun addAnnotationEntry(owner: JetModifierListOwner, annotationEntry: JetAnnotationEntry): JetAnnotationEntry {
+    val modifierList = owner.modifierList
+    return if (modifierList == null) {
+        createModifierList(annotationEntry.text, owner).annotationEntries.first()
+    }
+    else {
+        modifierList.addBefore(annotationEntry, modifierList.firstChild) as JetAnnotationEntry
+    }
+}
+
 internal fun addModifier(modifierList: JetModifierList, modifier: JetModifierKeywordToken, defaultVisibilityModifier: JetModifierKeywordToken) {
     val newModifier = JetPsiFactory(modifierList).createModifier(modifier)
     val modifierToReplace = MODIFIERS_TO_REPLACE[modifier]