[Wasm] stdlib NFC: Fix or suppress remaining warnings

libraries/stdlib/wasm/builtins/kotlin/Boolean.kt

@@ -3,6 +3,8 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
+@file:Suppress("UNUSED_PARAMETER")
+
 package kotlin
 
 import kotlin.wasm.internal.*
@@ -56,7 +58,7 @@ public class Boolean private constructor(private val value: Boolean) : Comparabl
         return if (other !is Boolean) {
             false
         } else {
-            this === (other as Boolean)
+            wasm_i32_eq(this.toInt(), other.toInt())
         }
     }
 

libraries/stdlib/wasm/builtins/kotlin/Char.kt

@@ -27,7 +27,7 @@ public class Char private constructor(public val value: Char) : Comparable<Char>
 
     public override fun equals(other: Any?): Boolean {
         if (other is Char)
-            return this === (other as Char)
+            return wasm_i32_eq(this.toInt(), other.toInt())
         return false
     }
 

libraries/stdlib/wasm/builtins/kotlin/Library.kt

@@ -87,5 +87,5 @@ public inline fun <reified T : Enum<T>> enumValues(): Array<T>
  * Returns an enum entry with specified name.
  */
 @SinceKotlin("1.1")
-@Suppress("NON_MEMBER_FUNCTION_NO_BODY")
+@Suppress("NON_MEMBER_FUNCTION_NO_BODY", "UNUSED_PARAMETER")
 public inline fun <reified T : Enum<T>> enumValueOf(name: String): T

libraries/stdlib/wasm/builtins/kotlin/Primitives.kt

@@ -5,7 +5,7 @@
 @file:Suppress(
     "OVERRIDE_BY_INLINE",
     "NOTHING_TO_INLINE",
-    "unused"
+    "unused", "UNUSED_PARAMETER"
 )
 
 package kotlin

libraries/stdlib/wasm/builtins/kotlin/String.kt

@@ -127,6 +127,7 @@ public class String internal @WasmPrimitiveConstructor constructor(
     }
 }
 
+@Suppress("NOTHING_TO_INLINE")
 internal inline fun WasmCharArray.createString(): String =
     String(null, this.len(), this)
 

libraries/stdlib/wasm/internal/kotlin/wasm/internal/Coroutines.kt

@@ -16,7 +16,7 @@ internal fun <T> getContinuation(): Continuation<T> =
 
 @PublishedApi
 @Suppress("UNCHECKED_CAST")
-internal suspend fun <T> returnIfSuspended(@Suppress("UNUSED_PARAMETER") argument: Any?): T =
+internal suspend fun <T> returnIfSuspended(argument: Any?): T =
     argument as T
 
 @PublishedApi
@@ -33,6 +33,7 @@ internal suspend fun getCoroutineContext(): CoroutineContext = getContinuation<A
 internal suspend fun <T> suspendCoroutineUninterceptedOrReturn(block: (Continuation<T>) -> Any?): T =
     returnIfSuspended<T>(block(getContinuation<T>()))
 
+@Suppress("UNUSED_PARAMETER")
 @ExcludedFromCodegen
 @PublishedApi
 internal fun <T> startCoroutineUninterceptedOrReturnIntrinsic0(
@@ -42,6 +43,7 @@ internal fun <T> startCoroutineUninterceptedOrReturnIntrinsic0(
     implementedAsIntrinsic
 }
 
+@Suppress("UNUSED_PARAMETER")
 @ExcludedFromCodegen
 @PublishedApi
 internal fun <R, T> startCoroutineUninterceptedOrReturnIntrinsic1(
@@ -52,6 +54,7 @@ internal fun <R, T> startCoroutineUninterceptedOrReturnIntrinsic1(
     implementedAsIntrinsic
 }
 
+@Suppress("UNUSED_PARAMETER")
 @ExcludedFromCodegen
 @PublishedApi
 internal fun <R, P, T> startCoroutineUninterceptedOrReturnIntrinsic2(

libraries/stdlib/wasm/internal/kotlin/wasm/internal/ExceptionHelpers.kt

@@ -14,11 +14,10 @@ package kotlin.wasm.internal
         throw error;
    }"""
 )
-private external fun throwJsError(message: String?, wasmTypeName: String?, stack: String)
+private external fun throwJsError(message: String?, wasmTypeName: String?, stack: String): Nothing
 
 internal fun throwAsJsException(t: Throwable): Nothing {
     throwJsError(t.message, t::class.simpleName, t.stackTraceToString())
-    return error("Unreachable")
 }
 
 internal var isNotFirstWasmExportCall: Boolean = false

libraries/stdlib/wasm/internal/kotlin/wasm/internal/Runtime.kt

@@ -3,6 +3,8 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
+@file:Suppress("UNUSED_PARAMETER")  // File contains many intrinsics
+
 package kotlin.wasm.internal
 
 internal const val CHAR_SIZE_BYTES = 2
@@ -115,5 +117,6 @@ internal fun stringGetPoolSize(): Int =
     implementedAsIntrinsic
 
 // This initializer is a special case in FieldInitializersLowering
+@Suppress("DEPRECATION")
 @EagerInitialization
 internal val stringPool: Array<String?> = arrayOfNulls(stringGetPoolSize())

libraries/stdlib/wasm/internal/kotlin/wasm/internal/TypeInfo.kt

@@ -51,6 +51,7 @@ internal fun isInterfaceById(obj: Any, interfaceId: Int): Boolean {
     return false
 }
 
+@Suppress("UNUSED_PARAMETER")
 @ExcludedFromCodegen
 internal fun <T> wasmIsInterface(obj: Any): Boolean =
     implementedAsIntrinsic

libraries/stdlib/wasm/internal/kotlin/wasm/internal/WasmInstructions.kt

@@ -4,7 +4,7 @@
  */
 
 @file:ExcludedFromCodegen
-@file:Suppress("unused", "NON_ABSTRACT_FUNCTION_WITH_NO_BODY", "INLINE_CLASS_IN_EXTERNAL_DECLARATION")
+@file:Suppress("unused", "NON_ABSTRACT_FUNCTION_WITH_NO_BODY", "INLINE_CLASS_IN_EXTERNAL_DECLARATION", "UNUSED_PARAMETER")
 
 
 package kotlin.wasm.internal

libraries/stdlib/wasm/src/kotlin/Dynamic.kt

@@ -112,6 +112,7 @@ internal fun Dynamic.getDouble(index: String): Double = dynamicGetDouble(this, i
 @PublishedApi
 internal fun Dynamic.getString(index: String): String? = dynamicGetString(this, index)
 
+@Suppress("UNCHECKED_CAST")
 @PublishedApi
 internal fun <T> Dynamic.getAny(index: String): T? = dynamicGetAny(this, index) as T?
 
@@ -142,6 +143,7 @@ internal fun Dynamic.getDouble(index: Int): Double = dynamicGetDouble(this, inde
 @PublishedApi
 internal fun Dynamic.getString(index: Int): String? = dynamicGetString(this, index.toString())
 
+@Suppress("UNCHECKED_CAST")
 @PublishedApi
 internal fun <T> Dynamic.getAny(index: Int): T? = dynamicGetAny(this, index.toString()) as T?
 
@@ -153,6 +155,7 @@ external interface Dynamic
 /**
  * Reinterprets this value as a value of the Dynamic type.
  */
+@Suppress("UNCHECKED_CAST_TO_EXTERNAL_INTERFACE")
 @kotlin.internal.InlineOnly
 fun Any.asDynamic(): Dynamic = this as Dynamic
 
@@ -183,6 +186,8 @@ operator fun Dynamic.set(index: Int, value: Any?) {
 
 @JsFun("(x) => x")
 private external fun <T> unsafeCastJs(x: String): Dynamic
+
+@Suppress("UNCHECKED_CAST")
 fun <T> String.unsafeCast(): T = unsafeCastJs<T>(this) as T
 
 @JsFun("(x) => x")
@@ -191,6 +196,7 @@ private external fun <T> unsafeCastJs(x: Boolean): Dynamic
 /**
  * Reinterprets boolean value as a value of the specified type [T] without any actual type checking.
  */
+@Suppress("UNCHECKED_CAST")
 fun <T> Boolean.unsafeCast(): T = unsafeCastJs<T>(this) as T
 
 /**
@@ -201,6 +207,7 @@ fun <T> Nothing?.unsafeCast(): Dynamic? = null
 /**
  * Reinterprets Dynamic type value as a value of the specified type [T] without any actual type checking.
  */
+@Suppress("UNCHECKED_CAST")
 fun <T> Dynamic.unsafeCast(): T = this as T
 
 @JsFun("e => { throw e; }")

libraries/stdlib/wasm/src/kotlin/Numbers.kt

@@ -75,6 +75,7 @@ public actual fun Int.rotateRight(bitCount: Int): Int =
 /**
  * Counts the number of set bits in the binary representation of this [Long] number.
  */
+@Suppress("NOTHING_TO_INLINE")
 public actual inline fun Long.countOneBits(): Int =
     wasm_i64_popcnt(this).toInt()
 
@@ -87,6 +88,7 @@ public actual fun Long.countLeadingZeroBits(): Int = wasm_i64_clz(this).toInt()
 /**
  * Counts the number of consecutive least significant bits that are zero in the binary representation of this [Long] number.
  */
+@Suppress("NOTHING_TO_INLINE")
 public actual inline fun Long.countTrailingZeroBits(): Int =
     wasm_i64_ctz(this).toInt()
 

libraries/stdlib/wasm/src/kotlin/collections/ArraysWasm.kt

@@ -15,6 +15,7 @@ package kotlin.collections
 @kotlin.internal.InlineOnly
 public actual inline fun <T> Collection<T>.toTypedArray(): Array<T> = copyToArray(this)
 
+@Suppress("UNCHECKED_CAST")
 @PublishedApi
 internal fun <T> copyToArray(collection: Collection<T>): Array<T> =
     if (collection is AbstractCollection<T>)

libraries/stdlib/wasm/src/kotlin/collections/Helpers.kt

@@ -10,6 +10,7 @@ package kotlin.collections
  * Attempts to read _uninitialized_ values from this array work in implementation-dependent manner,
  * either throwing exception or returning some kind of implementation-specific default value.
  */
+@Suppress("NOTHING_TO_INLINE")
 @PublishedApi
 internal inline fun <E> arrayOfUninitializedElements(size: Int): Array<E> {
     require(size >= 0) { "capacity must be non-negative." }

libraries/stdlib/wasm/src/kotlin/js/Promise.kt

@@ -9,10 +9,10 @@ package kotlin.js
  * Exposes the JavaScript [Promise object](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Promise) to Kotlin.
  */
 public external class Promise<out T>(executor: (resolve: (Dynamic?) -> Unit, reject: (Dynamic) -> Unit) -> Unit) {
-    public open fun then(onFulfilled: (Dynamic?) -> Dynamic?): Promise<Dynamic?>
-    public open fun then(onFulfilled: (Dynamic?) -> Dynamic?, onRejected: (Dynamic) -> Dynamic?): Promise<Dynamic?>
-    public open fun catch(onRejected: (Dynamic) -> Dynamic?): Promise<Dynamic?>
-    public open fun finally(onFinally: () -> Unit): Promise<Dynamic?>
+    public fun then(onFulfilled: (Dynamic?) -> Dynamic?): Promise<Dynamic?>
+    public fun then(onFulfilled: (Dynamic?) -> Dynamic?, onRejected: (Dynamic) -> Dynamic?): Promise<Dynamic?>
+    public fun catch(onRejected: (Dynamic) -> Dynamic?): Promise<Dynamic?>
+    public fun finally(onFinally: () -> Unit): Promise<Dynamic?>
 
     public companion object {
         public fun reject(e: Dynamic): Promise<Dynamic?>

libraries/stdlib/wasm/src/kotlin/reflect/reflection.kt

@@ -12,6 +12,7 @@ import kotlin.reflect.wasm.internal.*
 internal fun <T : Any> getKClass(typeInfoData: TypeInfoData): KClass<T> =
     KClassImpl(typeInfoData)
 
+@Suppress("UNCHECKED_CAST")
 internal fun <T : Any> getKClassFromExpression(e: T): KClass<T> =
     when (e) {
         is String -> PrimitiveClasses.stringClass

libraries/stdlib/wasm/src/kotlin/text/StringsWasm.kt

@@ -299,9 +299,10 @@ public actual fun CharSequence.repeat(n: Int): String {
         0 -> ""
         1 -> this.toString()
         else -> {
+            val sequence = this
             buildString(n * length) {
                 repeat(n) {
-                    append(this@repeat)
+                    append(sequence)
                 }
             }
         }

libraries/stdlib/wasm/src/kotlin/time/TimeSources.kt

@@ -27,13 +27,13 @@ internal actual object MonotonicTimeSource : TimeSource.WithComparableMarks {
         if (performance != null) getPerformanceNow(performance) else dateNow()
 
     actual override fun markNow(): ValueTimeMark = ValueTimeMark(read())
-    actual fun elapsedFrom(timeMark: ValueTimeMark): Duration = (read() - timeMark.reading as Double).milliseconds
+    actual fun elapsedFrom(timeMark: ValueTimeMark): Duration = (read() - timeMark.reading).milliseconds
     actual fun adjustReading(timeMark: ValueTimeMark, duration: Duration): ValueTimeMark =
-        ValueTimeMark(sumCheckNaN(timeMark.reading as Double + duration.toDouble(DurationUnit.MILLISECONDS)))
+        ValueTimeMark(sumCheckNaN(timeMark.reading + duration.toDouble(DurationUnit.MILLISECONDS)))
 
     actual fun differenceBetween(one: ValueTimeMark, another: ValueTimeMark): Duration {
-        val ms1 = one.reading as Double
-        val ms2 = another.reading as Double
+        val ms1 = one.reading
+        val ms2 = another.reading
         return if (ms1 == ms2) Duration.ZERO else (ms1 - ms2).milliseconds
     }
 

libraries/stdlib/wasm/src/kotlin/wasm/unsafe/MemoryAccess.kt

@@ -52,21 +52,25 @@ public value class Pointer public constructor(public val address: UInt) {
         implementedAsIntrinsic
 
     /** Store a Byte (8 bit) [value] */
+    @Suppress("UNUSED_PARAMETER")
     @WasmOp(WasmOp.I32_STORE8)
     public fun storeByte(value: Byte): Unit =
         implementedAsIntrinsic
 
     /** Store a Short (16 bit) [value] */
+    @Suppress("UNUSED_PARAMETER")
     @WasmOp(WasmOp.I32_STORE16)
     public fun storeShort(value: Short): Unit =
         implementedAsIntrinsic
 
     /** Store an Int (32 bit) [value] */
+    @Suppress("UNUSED_PARAMETER")
     @WasmOp(WasmOp.I32_STORE)
     public fun storeInt(value: Int): Unit =
         implementedAsIntrinsic
 
     /** Store a Long (64 bit) [value] */
+    @Suppress("UNUSED_PARAMETER")
     @WasmOp(WasmOp.I64_STORE)
     public fun storeLong(value: Long): Unit =
         implementedAsIntrinsic

libraries/stdlib/wasm/src/kotlin/wasm/unsafe/MemoryAllocation.kt

@@ -151,6 +151,7 @@ internal fun wasmMemorySize(): Int =
  * Grow memory by a given delta (in pages).
  * Return the previous size, or -1 if enough memory cannot be allocated.
  */
+@Suppress("UNUSED_PARAMETER")
 @WasmOp(WasmOp.MEMORY_GROW)
 internal fun wasmMemoryGrow(delta: Int): Int =
     implementedAsIntrinsic

libraries/stdlib/wasm/src/kotlinx/dom/ItemArrayLike.kt

@@ -13,6 +13,7 @@ public external interface ItemArrayLike<out T> {
 public fun <T> ItemArrayLike<T>.asList(): List<T> = object : AbstractList<T>() {
     override val size: Int get() = this@asList.length
 
+    @Suppress("UNCHECKED_CAST")
     override fun get(index: Int): T = when (index) {
         in 0..lastIndex -> this@asList.item(index) as T
         else -> throw IndexOutOfBoundsException("index $index is not in range [0..$lastIndex]")

libraries/stdlib/wasm/stubs/native/concurrent.kt

@@ -10,6 +10,7 @@ package kotlin.native.concurrent
 internal val Any?.isFrozen
     inline get() = false
 
+@Suppress("NOTHING_TO_INLINE")
 internal inline fun <T> T.freeze(): T = this
 
 internal class AtomicReference<T>(public var value: T) {