JVM_IR: reuse same bodies for suspend funs and $$forInline versions

This commit is contained in:
pyos
2020-03-04 13:37:20 +01:00
committed by Ilmir Usmanov
parent 8945d5a0df
commit 5ed845d0b4
16 changed files with 152 additions and 97 deletions
@@ -36,7 +36,6 @@ import org.jetbrains.kotlin.psi.KtElement
import org.jetbrains.kotlin.types.Variance
import org.jetbrains.org.objectweb.asm.MethodVisitor
import org.jetbrains.org.objectweb.asm.Opcodes
import org.jetbrains.org.objectweb.asm.tree.AbstractInsnNode
import org.jetbrains.org.objectweb.asm.tree.InsnNode
import org.jetbrains.org.objectweb.asm.tree.MethodNode
@@ -221,7 +221,7 @@ class ExpressionCodegen(
}
private fun generateFakeContinuationConstructorIfNeeded() {
val continuationClass = irFunction.suspendForInlineToOriginal()?.continuationClass() ?: return
val continuationClass = irFunction.continuationClass() ?: return
val continuationType = typeMapper.mapClass(continuationClass)
val continuationIndex = frameMap.getIndex(irFunction.continuationParameter()!!.symbol)
with(mv) {
@@ -89,11 +89,14 @@ class FunctionCodegen(
if (!context.state.classBuilderMode.generateBodies || flags.and(Opcodes.ACC_ABSTRACT) != 0 || irFunction.isExternal) {
generateAnnotationDefaultValueIfNeeded(methodVisitor)
} else {
val frameMap = irFunction.createFrameMapWithReceivers()
// `$$forInline` versions of suspend functions have the same bodies are the originals, but with different
// name/flags/annotations and with no state machine.
val notForInline = irFunction.suspendForInlineToOriginal() ?: irFunction
val frameMap = notForInline.createFrameMapWithReceivers()
context.state.globalInlineContext.enterDeclaration(irFunction.suspendFunctionOriginal().descriptor)
try {
val adapter = InstructionAdapter(methodVisitor)
ExpressionCodegen(irFunction, signature, frameMap, adapter, classCodegen, inlinedInto, smapOverride).generate()
ExpressionCodegen(notForInline, signature, frameMap, adapter, classCodegen, inlinedInto, smapOverride).generate()
} finally {
context.state.globalInlineContext.exitDeclaration()
}
@@ -14,7 +14,6 @@ import org.jetbrains.kotlin.codegen.BaseExpressionCodegen
import org.jetbrains.kotlin.codegen.ClassBuilder
import org.jetbrains.kotlin.codegen.OwnerKind
import org.jetbrains.kotlin.codegen.inline.*
import org.jetbrains.kotlin.codegen.inline.coroutines.FOR_INLINE_SUFFIX
import org.jetbrains.kotlin.codegen.serialization.JvmSerializationBindings
import org.jetbrains.kotlin.codegen.state.GenerationState
import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
@@ -24,14 +23,11 @@ import org.jetbrains.kotlin.diagnostics.DiagnosticUtils
import org.jetbrains.kotlin.incremental.components.LocationInfo
import org.jetbrains.kotlin.incremental.components.LookupLocation
import org.jetbrains.kotlin.incremental.components.Position
import org.jetbrains.kotlin.ir.declarations.IrAttributeContainer
import org.jetbrains.kotlin.ir.declarations.IrClass
import org.jetbrains.kotlin.ir.declarations.IrDeclaration
import org.jetbrains.kotlin.ir.declarations.IrFunction
import org.jetbrains.kotlin.ir.expressions.IrFunctionAccessExpression
import org.jetbrains.kotlin.ir.util.functions
import org.jetbrains.kotlin.ir.util.isSuspend
import org.jetbrains.kotlin.ir.util.parentAsClass
import org.jetbrains.kotlin.psi.KtElement
import org.jetbrains.kotlin.psi.doNotAnalyze
import org.jetbrains.kotlin.resolve.DescriptorUtils
@@ -110,17 +106,8 @@ class IrSourceCompilerForInline(
asmMethod: Method
): SMAPAndMethodNode {
assert(callableDescriptor == callee.symbol.descriptor.original) { "Expected $callableDescriptor got ${callee.descriptor.original}" }
// Do not inline the generated state-machine, which was generated to support java interop of inline suspend functions.
// Instead, find its $$forInline companion (they share the same attributeOwnerId), which is generated for the inliner to use.
val forInlineFunction = if (callee.isSuspend)
callee.parentAsClass.functions.find {
it.name.asString() == callee.name.asString() + FOR_INLINE_SUFFIX &&
it.attributeOwnerId == (callee as IrAttributeContainer).attributeOwnerId
} ?: callee
else
callee
val classCodegen = FakeClassCodegen(forInlineFunction, codegen.classCodegen)
val node = FunctionCodegen(forInlineFunction, classCodegen).generate()
val classCodegen = FakeClassCodegen(callee, codegen.classCodegen)
val node = FunctionCodegen(callee, classCodegen).generate()
node.preprocessSuspendMarkers()
return SMAPAndMethodNode(node, SMAP(classCodegen.getOrCreateSourceMapper().resultMappings))
}
@@ -27,10 +27,7 @@ import org.jetbrains.kotlin.ir.builders.*
import org.jetbrains.kotlin.ir.builders.declarations.*
import org.jetbrains.kotlin.ir.declarations.*
import org.jetbrains.kotlin.ir.expressions.*
import org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrFunctionReferenceImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrGetFieldImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrGetValueImpl
import org.jetbrains.kotlin.ir.expressions.impl.*
import org.jetbrains.kotlin.ir.symbols.IrSimpleFunctionSymbol
import org.jetbrains.kotlin.ir.types.*
import org.jetbrains.kotlin.ir.types.impl.IrSimpleTypeImpl
@@ -59,9 +56,6 @@ private class AddContinuationLowering(private val context: JvmBackendContext) :
// each lambda is referenced at most once while creating `$$forInline` methods.
addContinuationObjectAndContinuationParameterToSuspendFunctions(irFile)
addContinuationParameterToSuspendCalls(irFile)
// This should be done after adding continuation parameters so that `attributeContainerId` links
// inside `$$forInline` copies of `invokeSuspend` do not confuse the previous passes.
fillInvokeSuspendForInlineBodies(irFile)
}
private fun addContinuationParameterToSuspendCalls(irFile: IrFile) {
@@ -213,7 +207,7 @@ private class AddContinuationLowering(private val context: JvmBackendContext) :
}
}
private fun IrClass.addInvokeSuspendForLambda(irFunction: IrFunction, fields: List<IrField>, receiverField: IrField?): IrFunction {
private fun IrClass.addInvokeSuspendForLambda(irFunction: IrFunction, fields: List<IrField>, receiverField: IrField?): IrSimpleFunction {
val superMethod = context.ir.symbols.suspendLambdaClass.functions.single {
it.owner.name.asString() == INVOKE_SUSPEND_METHOD_NAME && it.owner.valueParameters.size == 1 &&
it.owner.valueParameters[0].type.isKotlinResult()
@@ -231,29 +225,24 @@ private class AddContinuationLowering(private val context: JvmBackendContext) :
}
}
private fun IrClass.addInvokeSuspendForInlineForLambda(invokeSuspend: IrFunction): IrFunction {
private fun IrClass.addInvokeSuspendForInlineForLambda(invokeSuspend: IrSimpleFunction): IrSimpleFunction {
return addFunction(
INVOKE_SUSPEND_METHOD_NAME + FOR_INLINE_SUFFIX,
context.irBuiltIns.anyNType,
Modality.FINAL,
origin = JvmLoweredDeclarationOrigin.FOR_INLINE_STATE_MACHINE_TEMPLATE
).apply {
copyAttributes(invokeSuspend)
generateErrorForInlineBody()
valueParameters += invokeSuspend.valueParameters.map { it.copyTo(this) }
}
}
private fun fillInvokeSuspendForInlineBodies(irFile: IrFile) {
irFile.transformChildrenVoid(object : IrElementTransformerVoid() {
override fun visitClass(declaration: IrClass): IrStatement = declaration.transformPostfix {
if (origin == JvmLoweredDeclarationOrigin.SUSPEND_LAMBDA) {
for (function in functions) {
if (function.origin == JvmLoweredDeclarationOrigin.FOR_INLINE_STATE_MACHINE_TEMPLATE) {
function.body = functions.single { it.name.asString() == "invokeSuspend" }.copyBodyTo(function)
}
}
}
}
})
private fun IrSimpleFunction.generateErrorForInlineBody() {
val message = "This is a stub representing a copy of a suspend method without the state machine " +
"(used by the inliner). Since the difference is at the bytecode level, the body is " +
"still on the original function. Use suspendForInlineToOriginal() to retrieve it."
body = IrExpressionBodyImpl(startOffset, endOffset, IrErrorExpressionImpl(startOffset, endOffset, returnType, message))
}
private fun IrDeclarationContainer.addFunctionOverride(function: IrSimpleFunction): IrSimpleFunction =
@@ -593,7 +582,7 @@ private class AddContinuationLowering(private val context: JvmBackendContext) :
annotations += view.annotations.map { it.deepCopyWithSymbols(this) }
copyParameterDeclarationsFrom(view)
copyAttributes(view)
body = view.copyBodyTo(this)
generateErrorForInlineBody()
}
}
@@ -210,62 +210,6 @@ public final class CrossinlineKt$filter$lambda-3$$inlined$consumeEach$2 {
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
public final class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1$1 {
field L$0: java.lang.Object
field L$1: java.lang.Object
field L$2: java.lang.Object
field L$3: java.lang.Object
field label: int
synthetic field result: java.lang.Object
synthetic final field this$0: CrossinlineKt$fold$$forInline$$inlined$consumeEach$1
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1$1
public method <init>(p0: CrossinlineKt$fold$$forInline$$inlined$consumeEach$1, p1: kotlin.coroutines.Continuation): void
public final @org.jetbrains.annotations.Nullable method invokeSuspend(@org.jetbrains.annotations.NotNull p0: java.lang.Object): java.lang.Object
}
@kotlin.Metadata
public final class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1 {
synthetic final field $acc$inlined: kotlin.jvm.internal.Ref$ObjectRef
synthetic final field $operation$inlined: kotlin.jvm.functions.Function3
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$1$1
public method <init>(p0: kotlin.jvm.internal.Ref$ObjectRef, p1: kotlin.jvm.functions.Function3): void
public method close(@org.jetbrains.annotations.Nullable p0: java.lang.Throwable): void
public @org.jetbrains.annotations.Nullable method send$$forInline(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
public final class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2$1 {
field L$0: java.lang.Object
field L$1: java.lang.Object
field L$2: java.lang.Object
field L$3: java.lang.Object
field label: int
synthetic field result: java.lang.Object
synthetic final field this$0: CrossinlineKt$fold$$forInline$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2$1
public method <init>(p0: CrossinlineKt$fold$$forInline$$inlined$consumeEach$2, p1: kotlin.coroutines.Continuation): void
public final @org.jetbrains.annotations.Nullable method invokeSuspend(@org.jetbrains.annotations.NotNull p0: java.lang.Object): java.lang.Object
}
@kotlin.Metadata
public final class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2 {
synthetic final field $acc$inlined: kotlin.jvm.internal.Ref$ObjectRef
synthetic final field $operation$inlined: kotlin.jvm.functions.Function3
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$forInline$$inlined$consumeEach$2$1
public method <init>(p0: kotlin.jvm.internal.Ref$ObjectRef, p1: kotlin.jvm.functions.Function3): void
public method close(@org.jetbrains.annotations.Nullable p0: java.lang.Throwable): void
public @org.jetbrains.annotations.Nullable method send$$forInline(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
public final class CrossinlineKt$fold$$inlined$consumeEach$1$1 {
@@ -294,6 +238,62 @@ public final class CrossinlineKt$fold$$inlined$consumeEach$1 {
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
public final class CrossinlineKt$fold$$inlined$consumeEach$2$1 {
field L$0: java.lang.Object
field L$1: java.lang.Object
field L$2: java.lang.Object
field L$3: java.lang.Object
field label: int
synthetic field result: java.lang.Object
synthetic final field this$0: CrossinlineKt$fold$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$inlined$consumeEach$2$1
public method <init>(p0: CrossinlineKt$fold$$inlined$consumeEach$2, p1: kotlin.coroutines.Continuation): void
public final @org.jetbrains.annotations.Nullable method invokeSuspend(@org.jetbrains.annotations.NotNull p0: java.lang.Object): java.lang.Object
}
@kotlin.Metadata
public final class CrossinlineKt$fold$$inlined$consumeEach$2 {
synthetic final field $acc$inlined: kotlin.jvm.internal.Ref$ObjectRef
synthetic final field $operation$inlined: kotlin.jvm.functions.Function3
inner class CrossinlineKt$fold$$inlined$consumeEach$2
inner class CrossinlineKt$fold$$inlined$consumeEach$2$1
public method <init>(p0: kotlin.jvm.internal.Ref$ObjectRef, p1: kotlin.jvm.functions.Function3): void
public method close(@org.jetbrains.annotations.Nullable p0: java.lang.Throwable): void
public @org.jetbrains.annotations.Nullable method send$$forInline(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
public final class CrossinlineKt$fold$$inlined$consumeEach$3$1 {
field L$0: java.lang.Object
field L$1: java.lang.Object
field L$2: java.lang.Object
field L$3: java.lang.Object
field label: int
synthetic field result: java.lang.Object
synthetic final field this$0: CrossinlineKt$fold$$inlined$consumeEach$3
inner class CrossinlineKt$fold$$inlined$consumeEach$3
inner class CrossinlineKt$fold$$inlined$consumeEach$3$1
public method <init>(p0: CrossinlineKt$fold$$inlined$consumeEach$3, p1: kotlin.coroutines.Continuation): void
public final @org.jetbrains.annotations.Nullable method invokeSuspend(@org.jetbrains.annotations.NotNull p0: java.lang.Object): java.lang.Object
}
@kotlin.Metadata
public final class CrossinlineKt$fold$$inlined$consumeEach$3 {
synthetic final field $acc$inlined: kotlin.jvm.internal.Ref$ObjectRef
synthetic final field $operation$inlined: kotlin.jvm.functions.Function3
inner class CrossinlineKt$fold$$inlined$consumeEach$3
inner class CrossinlineKt$fold$$inlined$consumeEach$3$1
public method <init>(p0: kotlin.jvm.internal.Ref$ObjectRef, p1: kotlin.jvm.functions.Function3): void
public method close(@org.jetbrains.annotations.Nullable p0: java.lang.Throwable): void
public @org.jetbrains.annotations.Nullable method send$$forInline(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
public @org.jetbrains.annotations.Nullable method send(p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: kotlin.coroutines.Continuation): java.lang.Object
}
@kotlin.Metadata
@kotlin.coroutines.jvm.internal.DebugMetadata
final class CrossinlineKt$fold$1 {
@@ -0,0 +1,25 @@
// WITH_RUNTIME
// WITH_COROUTINES
// IGNORE_BACKEND: JVM
// IGNORE_BACKEND_MULTI_MODULE: JVM
// NO_CHECK_LAMBDA_INLINING
// FILE: a.kt
inline suspend fun runReturning(lambda: suspend () -> Unit): Unit =
lambda()
inline suspend fun myRun(lambda: suspend () -> String): String {
runReturning { return lambda() }
return "fail: did not return from lambda"
}
// FILE: b.kt
import helpers.*
import kotlin.coroutines.*
import kotlin.coroutines.intrinsics.*
fun box(): String {
var result = "fail"
suspend { result = myRun { "OK" } }.startCoroutine(EmptyContinuation)
return result
}
@@ -0,0 +1,12 @@
// WITH_COROUTINES
// TREAT_AS_ONE_FILE
inline suspend fun runReturning(lambda: suspend () -> Unit): Unit =
lambda()
inline suspend fun myRun(lambda: suspend () -> String): String {
runReturning { return lambda() }
return "fail: did not return from lambda"
}
// 0 NON_LOCAL_RETURN
@@ -3898,6 +3898,11 @@ public class BlackBoxInlineCodegenTestGenerated extends AbstractBlackBoxInlineCo
runTest("compiler/testData/codegen/boxInline/suspend/nestedMethodWith2XParameter.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_2() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines.experimental");
@@ -1391,6 +1391,11 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
runTest("compiler/testData/codegen/bytecodeText/coroutines/doNotReassignContinuation.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/coroutines/nonLocalReturn.kt");
}
@TestMetadata("returnUnitInLambda.kt")
public void testReturnUnitInLambda_1_2() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/bytecodeText/coroutines/returnUnitInLambda.kt", "kotlin.coroutines.experimental");
@@ -3898,6 +3898,11 @@ public class CompileKotlinAgainstInlineKotlinTestGenerated extends AbstractCompi
runTest("compiler/testData/codegen/boxInline/suspend/nestedMethodWith2XParameter.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_2() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines.experimental");
@@ -3813,6 +3813,11 @@ public class IrBlackBoxInlineCodegenTestGenerated extends AbstractIrBlackBoxInli
runTest("compiler/testData/codegen/boxInline/suspend/nestedMethodWith2XParameter.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_3() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines");
@@ -1401,6 +1401,11 @@ public class IrBytecodeTextTestGenerated extends AbstractIrBytecodeTextTest {
runTest("compiler/testData/codegen/bytecodeText/coroutines/doNotReassignContinuation.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/bytecodeText/coroutines/nonLocalReturn.kt");
}
@TestMetadata("returnUnitInLambda.kt")
public void testReturnUnitInLambda_1_3() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/bytecodeText/coroutines/returnUnitInLambda.kt", "kotlin.coroutines");
@@ -3813,6 +3813,11 @@ public class IrCompileKotlinAgainstInlineKotlinTestGenerated extends AbstractIrC
runTest("compiler/testData/codegen/boxInline/suspend/nestedMethodWith2XParameter.kt");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_3() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines");
@@ -3388,6 +3388,11 @@ public class IrJsCodegenInlineTestGenerated extends AbstractIrJsCodegenInlineTes
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/multipleSuspensionPoints.kt", "kotlin.coroutines");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_3() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines");
@@ -3388,6 +3388,11 @@ public class JsCodegenInlineTestGenerated extends AbstractJsCodegenInlineTest {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/multipleSuspensionPoints.kt", "kotlin.coroutines");
}
@TestMetadata("nonLocalReturn.kt")
public void testNonLocalReturn() throws Exception {
runTest("compiler/testData/codegen/boxInline/suspend/nonLocalReturn.kt");
}
@TestMetadata("nonSuspendCrossinline.kt")
public void testNonSuspendCrossinline_1_3() throws Exception {
runTestWithPackageReplacement("compiler/testData/codegen/boxInline/suspend/nonSuspendCrossinline.kt", "kotlin.coroutines");