Skip elements for which we cannot generate bridge.

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/StubIrBridgeBuilder.kt

@@ -12,7 +12,8 @@ class BridgeBuilderResult(
         val kotlinFile: KotlinFile,
         val nativeBridges: NativeBridges,
         val propertyAccessorBridgeBodies: Map<PropertyAccessor, String>,
-        val functionBridgeBodies: Map<FunctionStub, List<String>>
+        val functionBridgeBodies: Map<FunctionStub, List<String>>,
+        val excludedStubs: Set<StubIrElement>
 )
 
 /**
@@ -64,6 +65,7 @@ class StubIrBridgeBuilder(
 
     private val propertyAccessorBridgeBodies = mutableMapOf<PropertyAccessor, String>()
     private val functionBridgeBodies = mutableMapOf<FunctionStub, List<String>>()
+    private val excludedStubs = mutableSetOf<StubIrElement>()
 
     private val bridgeGeneratingVisitor = object : StubIrVisitor<StubContainer?, Unit> {
         override fun visitClass(element: ClassStub, owner: StubContainer?) {
@@ -83,11 +85,16 @@ class StubIrBridgeBuilder(
         }
 
         override fun visitFunction(element: FunctionStub, owner: StubContainer?) {
-            when {
-                element.external -> tryProcessCCallAnnotation(element)
-                element.isOptionalObjCMethod() -> {}
-                owner != null && owner.isInterface -> {}
-                else -> generateBridgeBody(element)
+            try {
+                when {
+                    element.external -> tryProcessCCallAnnotation(element)
+                    element.isOptionalObjCMethod() -> { }
+                    owner != null && owner.isInterface -> { }
+                    else -> generateBridgeBody(element)
+                }
+            } catch (e: Throwable) {
+                context.log("Warning: cannot generate bridge for ${element.name}.")
+                excludedStubs += element
             }
         }
 
@@ -106,15 +113,21 @@ class StubIrBridgeBuilder(
         }
 
         override fun visitProperty(element: PropertyStub, owner: StubContainer?) {
-            when (val kind = element.kind) {
-                is PropertyStub.Kind.Constant -> { }
-                is PropertyStub.Kind.Val -> {
-                    visitPropertyAccessor(kind.getter, owner)
-                }
-                is PropertyStub.Kind.Var -> {
-                    visitPropertyAccessor(kind.getter, owner)
-                    visitPropertyAccessor(kind.setter, owner)
+            try {
+                when (val kind = element.kind) {
+                    is PropertyStub.Kind.Constant -> {
+                    }
+                    is PropertyStub.Kind.Val -> {
+                        visitPropertyAccessor(kind.getter, owner)
+                    }
+                    is PropertyStub.Kind.Var -> {
+                        visitPropertyAccessor(kind.getter, owner)
+                        visitPropertyAccessor(kind.setter, owner)
+                    }
                 }
+            } catch (e: Throwable) {
+                context.log("Warning: cannot generate bridge for ${element.name}.")
+                excludedStubs += element
             }
         }
 
@@ -274,7 +287,8 @@ class StubIrBridgeBuilder(
                 kotlinFile,
                 simpleBridgeGenerator.prepare(),
                 propertyAccessorBridgeBodies.toMap(),
-                functionBridgeBodies.toMap()
+                functionBridgeBodies.toMap(),
+                excludedStubs.toSet()
         )
     }
 }

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/StubIrBuilder.kt

@@ -229,10 +229,7 @@ data class StubIrBuilderResult(
 /**
  * Produces [StubIrBuilderResult] for given [KotlinPlatform] using [InteropConfiguration].
  */
-class StubIrBuilder(
-        private val context: StubIrContext,
-        private val verbose: Boolean = false
-) {
+class StubIrBuilder(private val context: StubIrContext) {
 
     private val configuration = context.configuration
     private val nativeIndex: NativeIndex = context.nativeIndex
@@ -292,17 +289,11 @@ class StubIrBuilder(
         )
     }
 
-    private fun log(message: String) {
-        if (verbose) {
-            println(message)
-        }
-    }
-
     private fun generateStubsForWrappedMacro(macro: WrappedMacroDef) {
         try {
             generateStubsForGlobal(GlobalDecl(macro.name, macro.type, isConst = true))
         } catch (e: Throwable) {
-            log("Warning: cannot generate stubs for macro ${macro.name}")
+            context.log("Warning: cannot generate stubs for macro ${macro.name}")
         }
     }
 
@@ -310,7 +301,7 @@ class StubIrBuilder(
         try {
             addStubs(MacroConstantStubBuilder(buildingContext, constant).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate stubs for constant ${constant.name}")
+            context.log("Warning: cannot generate stubs for constant ${constant.name}")
         }
     }
 
@@ -318,7 +309,7 @@ class StubIrBuilder(
         try {
             addStubs(EnumStubBuilder(buildingContext, enumDef).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate definition for enum ${enumDef.spelling}")
+            context.log("Warning: cannot generate definition for enum ${enumDef.spelling}")
         }
     }
 
@@ -326,7 +317,7 @@ class StubIrBuilder(
         try {
             addStubs(FunctionStubBuilder(buildingContext, func).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate stubs for function ${func.name}")
+            context.log("Warning: cannot generate stubs for function ${func.name}")
         }
     }
 
@@ -334,7 +325,7 @@ class StubIrBuilder(
         try {
             addStubs(StructStubBuilder(buildingContext, decl).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate definition for struct ${decl.spelling}")
+            context.log("Warning: cannot generate definition for struct ${decl.spelling}")
         }
     }
 
@@ -342,7 +333,7 @@ class StubIrBuilder(
         try {
             addStubs(TypedefStubBuilder(buildingContext, typedefDef).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate typedef ${typedefDef.name}")
+            context.log("Warning: cannot generate typedef ${typedefDef.name}")
         }
     }
 
@@ -350,7 +341,7 @@ class StubIrBuilder(
         try {
             addStubs(GlobalStubBuilder(buildingContext, global).build())
         } catch (e: Throwable) {
-            log("Warning: cannot generate stubs for global ${global.name}")
+            context.log("Warning: cannot generate stubs for global ${global.name}")
         }
     }
 

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/StubIrDriver.kt

@@ -11,6 +11,7 @@ import java.io.File
 import java.util.*
 
 class StubIrContext(
+        val log: (String) -> Unit,
         val configuration: InteropConfiguration,
         val nativeIndex: NativeIndex,
         val imports: Imports,
@@ -85,12 +86,9 @@ class StubIrContext(
     }
 }
 
-class StubIrDriver(
-        private val context: StubIrContext,
-        private val verbose: Boolean = false
-) {
+class StubIrDriver(private val context: StubIrContext) {
     fun run(outKtFile: File, outCFile: File, entryPoint: String?) {
-        val builderResult = StubIrBuilder(context, verbose).build()
+        val builderResult = StubIrBuilder(context).build()
         val bridgeBuilderResult = StubIrBridgeBuilder(context, builderResult).build()
         outKtFile.bufferedWriter().use { ktFile ->
             File(outCFile.absolutePath).bufferedWriter().use { cFile ->

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/StubIrTextEmitter.kt

@@ -215,6 +215,8 @@ class StubIrTextEmitter(
         }
 
         override fun visitFunction(element: FunctionStub, owner: StubContainer?) {
+            if (element in bridgeBuilderResult.excludedStubs) return
+
             val modality = renderMemberModality(element.modality, owner)
             element.annotations.forEach {
                 out(renderAnnotation(it))
@@ -242,6 +244,8 @@ class StubIrTextEmitter(
         }
 
         override fun visitProperty(element: PropertyStub, owner: StubContainer?) {
+            if (element in bridgeBuilderResult.excludedStubs) return
+
             val modality = renderMemberModality(element.modality, owner)
             val receiver = if (element.receiverType != null) "${renderStubType(element.receiverType)}." else ""
             val name = if (owner?.isTopLevelContainer == true) {

Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/main.kt

@@ -239,8 +239,14 @@ private fun processCLib(args: Array<String>, additionalArgs: Map<String, Any> =
     File(nativeLibsDir).mkdirs()
     val outCFile = tempFiles.create(libName, ".${language.sourceFileExtension}")
 
-    val stubIrContext = StubIrContext(configuration, nativeIndex, imports, flavor, libName)
-    val stubIrDriver = StubIrDriver(stubIrContext, verbose)
+    val logger = if (verbose) {
+        { message: String -> println(message) }
+    } else {
+        {}
+    }
+
+    val stubIrContext = StubIrContext(logger, configuration, nativeIndex, imports, flavor, libName)
+    val stubIrDriver = StubIrDriver(stubIrContext)
     stubIrDriver.run(outKtFile, File(outCFile.absolutePath), entryPoint)
 
     // TODO: if a library has partially included headers, then it shouldn't be used as a dependency.