From a3f16fd75c200020465f79563ca58b2833236865 Mon Sep 17 00:00:00 2001
From: Simon Ogorodnik <Simon.Ogorodnik@jetbrains.com>
Date: Tue, 24 Apr 2018 20:35:42 +0300
Subject: [backport] Stabilize signatures to fix linking from Java to Kotlin

Basically there is 2 ways to get signature, from PSI and from
descriptors, and there should be only one way in one session

Original: adc09f2
---
 .../Kotlin/KotlinAsJavaElementSignatureProvider.kt | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 core/src/main/kotlin/Kotlin/KotlinAsJavaElementSignatureProvider.kt

(limited to 'core/src/main/kotlin/Kotlin/KotlinAsJavaElementSignatureProvider.kt')

diff --git a/core/src/main/kotlin/Kotlin/KotlinAsJavaElementSignatureProvider.kt b/core/src/main/kotlin/Kotlin/KotlinAsJavaElementSignatureProvider.kt
new file mode 100644
index 00000000..20ea179e
--- /dev/null
+++ b/core/src/main/kotlin/Kotlin/KotlinAsJavaElementSignatureProvider.kt
@@ -0,0 +1,25 @@
+package org.jetbrains.dokka
+
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.asJava.toLightElements
+import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
+import org.jetbrains.kotlin.psi.KtElement
+
+class KotlinAsJavaElementSignatureProvider : ElementSignatureProvider {
+
+    private fun PsiElement.javaLikePsi() = when {
+        this is KtElement -> toLightElements().firstOrNull()
+        else -> this
+    }
+
+    override fun signature(forPsi: PsiElement): String {
+        return getSignature(forPsi.javaLikePsi()) ?:
+                "not implemented for $forPsi"
+    }
+
+    override fun signature(forDesc: DeclarationDescriptor): String {
+        val sourcePsi = forDesc.sourcePsi()
+        return getSignature(sourcePsi?.javaLikePsi()) ?:
+                "not implemented for $forDesc with psi: $sourcePsi"
+    }
+}
\ No newline at end of file
-- 
cgit