Reuse TransformationMethodVisitor in ABI gen plugin

compiler/backend/src/org/jetbrains/kotlin/codegen/TransformationMethodVisitor.kt

@@ -33,8 +33,9 @@ abstract class TransformationMethodVisitor(
     name: String,
     desc: String,
     signature: String?,
-    exceptions: Array<String>?
+    exceptions: Array<out String>?,
-) : MethodVisitor(Opcodes.ASM5) {
+    api: Int = Opcodes.ASM5
+) : MethodVisitor(api) {
 
     private val methodNode = MethodNode(access, name, desc, signature, exceptions).apply {
         localVariables = ArrayList(5)

plugins/jvm-abi-gen/src/org/jetbrains/kotlin/jvm/abi/asm/AbiClassBuilder.kt

@@ -30,9 +30,14 @@ internal class AbiClassBuilder(private val cv: ClassVisitor) : AbstractClassBuil
         // but non-inline functions can be thrown out
         if (descriptor is FunctionDescriptor && descriptor.isInline) return mv
 
-        // getArgumentsAndReturnSizes returns `(argSize << 2) | retSize`, where argSize includes `this`
+        return ReplaceWithEmptyMethodVisitor(
-        val maxLocals = (Type.getArgumentsAndReturnSizes(desc) shr 2) - 1
+            delegate = mv,
-        return ReplaceWithEmptyMethodVisitor(maxLocals, mv, AbiExtensionAsmApiVersion)
+            access = access,
+            name = name,
+            desc = desc,
+            signature = signature,
+            exceptions = exceptions
+        )
     }
 
     override fun newField(

plugins/jvm-abi-gen/src/org/jetbrains/kotlin/jvm/abi/asm/ReplaceWithEmptyMethodVisitor.kt

@@ -5,36 +5,19 @@
 
 package org.jetbrains.kotlin.jvm.abi.asm
 
+import org.jetbrains.kotlin.codegen.TransformationMethodVisitor
 import org.jetbrains.org.objectweb.asm.*
+import org.jetbrains.org.objectweb.asm.tree.MethodNode
 
 internal class ReplaceWithEmptyMethodVisitor(
-    private val newMaxLocals: Int,
+    delegate: MethodVisitor,
-    private val delegate: MethodVisitor,
+    access: Int,
-    api: Int
+    name: String,
-) : MethodVisitor(api, null) {
+    desc: String,
-    override fun visitCode() {
+    signature: String?,
-        delegate.visitCode()
+    exceptions: Array<out String>?
-        delegate.visitMaxs(0, newMaxLocals)
+) : TransformationMethodVisitor(delegate, access, name, desc, signature, exceptions, api = AbiExtensionAsmApiVersion) {
-        delegate.visitEnd()
+    override fun performTransformations(methodNode: MethodNode) {
-    }
+        methodNode.instructions.clear()
-
-    override fun visitParameter(name: String?, access: Int) {
-        delegate.visitParameter(name, access)
-    }
-
-    override fun visitParameterAnnotation(parameter: Int, desc: String?, visible: Boolean): AnnotationVisitor =
-        delegate.visitParameterAnnotation(parameter, desc, visible)
-
-    override fun visitAnnotationDefault(): AnnotationVisitor =
-        delegate.visitAnnotationDefault()
-
-    override fun visitAnnotation(desc: String?, visible: Boolean): AnnotationVisitor =
-        delegate.visitAnnotation(desc, visible)
-
-    override fun visitTypeAnnotation(typeRef: Int, typePath: TypePath?, desc: String?, visible: Boolean): AnnotationVisitor =
-        delegate.visitTypeAnnotation(typeRef, typePath, desc, visible)
-
-    override fun visitAttribute(attr: Attribute?) {
-        delegate.visitAttribute(attr)
     }
 }