Uast: exposing enum constants literal values (#KT-23456)

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinAbstractUElement.kt

@@ -163,6 +163,10 @@ fun doConvertParent(element: UElement, parent: PsiElement?): UElement? {
         return result.initializingClass
     }
 
+    if (result is UCallExpression && result.uastParent is UEnumConstant) {
+        return result.uastParent
+    }
+
     if (result is USwitchClauseExpressionWithBody && !isInConditionBranch(element, result)) {
         return result.body
     }

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/KotlinAbstractUElement.kt.172

@@ -133,6 +133,10 @@ fun doConvertParent(element: UElement, parent: PsiElement?): UElement? {
         return result.initializingClass
     }
 
+    if (result is UCallExpression && result.uastParent is UEnumConstant) {
+        return result.uastParent
+    }
+
     if (result is USwitchClauseExpressionWithBody && !isInConditionBranch(element, result)) {
         return result.body
     }

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUVariable.kt

@@ -430,11 +430,13 @@ class KotlinUEnumConstant(
     override val valueArgumentCount: Int
         get() = psi.argumentList?.expressions?.size ?: 0
 
-    override val valueArguments by lz {
-        psi.argumentList?.expressions?.map {
-            getLanguagePlugin().convertElement(it, this) as? UExpression ?: UastEmptyExpression
-        } ?: emptyList()
-    }
+    override val valueArguments by lz(fun(): List<UExpression> {
+        val ktEnumEntry = sourcePsi as? KtEnumEntry ?: return emptyList()
+        val ktSuperTypeCallEntry = ktEnumEntry.initializerList?.initializers?.firstOrNull() as? KtSuperTypeCallEntry ?: return emptyList()
+        return ktSuperTypeCallEntry.valueArguments.map {
+            it.getArgumentExpression()?.let { getLanguagePlugin().convertElement(it, this) } as? UExpression ?: UastEmptyExpression(this)
+        }
+    })
 
     override val returnType: PsiType?
         get() = uastParent?.getAsJavaPsiElement(PsiClass::class.java)?.let { PsiTypesUtil.getClassType(it) }

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUVariable.kt.172

@@ -19,17 +19,13 @@ package org.jetbrains.uast.kotlin
 import com.intellij.psi.*
 import org.jetbrains.kotlin.asJava.classes.KtLightClass
 import org.jetbrains.kotlin.asJava.elements.KtLightElement
-import org.jetbrains.kotlin.psi.KtNamedDeclaration
-import org.jetbrains.kotlin.psi.KtParameter
-import org.jetbrains.kotlin.psi.KtProperty
-import org.jetbrains.kotlin.psi.KtVariableDeclaration
+import org.jetbrains.kotlin.psi.*
 import org.jetbrains.uast.*
 import org.jetbrains.uast.internal.acceptList
 import org.jetbrains.uast.java.JavaAbstractUExpression
 import org.jetbrains.uast.java.JavaUAnnotation
 import org.jetbrains.uast.java.annotations
 import org.jetbrains.uast.kotlin.declarations.UastLightIdentifier
-import org.jetbrains.uast.kotlin.internal.KotlinUElementWithComments
 import org.jetbrains.uast.kotlin.psi.UastKotlinPsiParameter
 import org.jetbrains.uast.kotlin.psi.UastKotlinPsiVariable
 import org.jetbrains.uast.visitor.UastVisitor
@@ -256,11 +252,13 @@ open class KotlinUEnumConstant(
     override val valueArgumentCount: Int
         get() = psi.argumentList?.expressions?.size ?: 0
 
-    override val valueArguments by lz {
-        psi.argumentList?.expressions?.map {
-            getLanguagePlugin().convertElement(it, this) as? UExpression ?: UastEmptyExpression
-        } ?: emptyList()
+    override val valueArguments by lz(fun(): List<UExpression> {
+        val ktEnumEntry = (psi as? KtLightElement<*, *>)?.kotlinOrigin as? KtEnumEntry ?: return emptyList()
+        val ktSuperTypeCallEntry = ktEnumEntry.initializerList?.initializers?.firstOrNull() as? KtSuperTypeCallEntry ?: return emptyList()
+        return ktSuperTypeCallEntry.valueArguments.map {
+            it.getArgumentExpression()?.let { getLanguagePlugin().convertElement(it, this) } as? UExpression ?: UastEmptyExpression
     }
+    })
 
     override val returnType: PsiType?
         get() = psi.type

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/declarations/KotlinUVariable.kt.173

@@ -411,11 +411,13 @@ class KotlinUEnumConstant(
     override val valueArgumentCount: Int
         get() = psi.argumentList?.expressions?.size ?: 0
 
-    override val valueArguments by lz {
-        psi.argumentList?.expressions?.map {
-            getLanguagePlugin().convertElement(it, this) as? UExpression ?: UastEmptyExpression
-        } ?: emptyList()
+    override val valueArguments by lz(fun(): List<UExpression> {
+        val ktEnumEntry = sourcePsi as? KtEnumEntry ?: return emptyList()
+        val ktSuperTypeCallEntry = ktEnumEntry.initializerList?.initializers?.firstOrNull() as? KtSuperTypeCallEntry ?: return emptyList()
+        return ktSuperTypeCallEntry.valueArguments.map {
+            it.getArgumentExpression()?.let { getLanguagePlugin().convertElement(it, this) } as? UExpression ?: UastEmptyExpression
     }
+    })
 
     override val returnType: PsiType?
         get() = uastParent?.getAsJavaPsiElement(PsiClass::class.java)?.let { PsiTypesUtil.getClassType(it) }

plugins/uast-kotlin/testData/EnumValueMembers.log.txt

@@ -3,6 +3,7 @@ UFile (package = )
         UEnumConstant (name = SHEET)
             UAnnotation (fqName = null)
             USimpleNameReferenceExpression (identifier = Style)
+            ULiteralExpression (value = "foo")
             UClass (name = null)
                 UAnnotationMethod (name = getExitAnimation)
                     UBlockExpression

plugins/uast-kotlin/testData/EnumValueMembers.log.txt.172

@@ -2,6 +2,7 @@ UFile (package = )
     UClass (name = Style)
         UEnumConstant (name = SHEET)
             USimpleNameReferenceExpression (identifier = Style)
+            ULiteralExpression (value = "foo")
             UClass (name = null)
                 UAnnotationMethod (name = getExitAnimation)
                     UBlockExpression

plugins/uast-kotlin/testData/EnumValueMembers.render.txt

 public enum Style {
-    @null SHEET {
+    @null SHEET("foo") {
         public fun getExitAnimation() : java.lang.String {
             return "bar"
         }

plugins/uast-kotlin/testData/EnumValueMembers.render.txt.172

 public enum Style {
-    SHEET {
-        public fun getExitAnimation() : java.lang.String = "bar"
+    SHEET("foo") {
+        public fun getExitAnimation() : java.lang.String {
+            return "bar"
+        }
         fun SHEET() = UastEmptyExpression
     }
     private final var value: java.lang.String