From a401374ed4d69fce2432057707de8ed4ed7546e0 Mon Sep 17 00:00:00 2001
From: Roman Artemev <roman.artemev@jetbrains.com>
Date: Tue, 2 Jun 2020 14:08:43 +0300
Subject: [PATCH] [PLUGIN API] Add extension point to customize linkage process

---
 .../backend/common/extensions/IrGenerationExtension.kt      | 3 ++-
 .../src/org/jetbrains/kotlin/ir/linkage/IrDeserializer.kt   | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/extensions/IrGenerationExtension.kt b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/extensions/IrGenerationExtension.kt
index b99739b7f63..a95b2d93f8c 100644
--- a/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/extensions/IrGenerationExtension.kt
+++ b/compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/extensions/IrGenerationExtension.kt
@@ -7,8 +7,9 @@ package org.jetbrains.kotlin.backend.common.extensions
 
 import org.jetbrains.kotlin.extensions.ProjectExtensionDescriptor
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
+import org.jetbrains.kotlin.ir.linkage.IrDeserializer
 
-interface IrGenerationExtension {
+interface IrGenerationExtension : IrDeserializer.IrLinkerExtension {
     companion object :
         ProjectExtensionDescriptor<IrGenerationExtension>(
             "org.jetbrains.kotlin.irGenerationExtension", IrGenerationExtension::class.java
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/linkage/IrDeserializer.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/linkage/IrDeserializer.kt
index 5c3e236d374..1612eb9292a 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/linkage/IrDeserializer.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/linkage/IrDeserializer.kt
@@ -5,10 +5,16 @@
 
 package org.jetbrains.kotlin.ir.linkage
 
+import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
+import org.jetbrains.kotlin.ir.symbols.IrSymbol
 
 interface IrDeserializer : IrProvider {
 
+    interface IrLinkerExtension {
+        fun resolveSymbol(symbol: IrSymbol): IrDeclaration? = null
+    }
+
     fun init(moduleFragment: IrModuleFragment?) {}
     fun postProcess() {}
 }