[Wasm] add boolean serialization for serialization of ConstantDataCharArray (KT-79357)

Author: alex28sh

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/ir2wasm/ConstantData.kt

@@ -78,12 +78,12 @@ class ConstantDataIntArray(val value: List<WasmSymbol<Int>>) : ConstantDataEleme
     override val sizeInBytes: Int = value.size * INT_SIZE_BYTES
 }
 
-class ConstantDataCharArray(val value: List<WasmSymbol<Char>>, val fitsLatin1: Int) : ConstantDataElement() {
-    constructor(value: CharArray, fitsLatin1: Int) : this(value.map { WasmSymbol(it) }, fitsLatin1)
+class ConstantDataCharArray(val value: List<WasmSymbol<Char>>, val fitsLatin1: Boolean) : ConstantDataElement() {
+    constructor(value: CharArray, fitsLatin1: Boolean) : this(value.map { WasmSymbol(it) }, fitsLatin1)
 
     override fun toBytes(): ByteArray {
         return value
-            .map { it.owner.toLittleEndianBytes(fitsLatin1 != 0) }
+            .map { it.owner.toLittleEndianBytes(fitsLatin1) }
             .fold(byteArrayOf(), ByteArray::plus)
     }
 
@@ -93,7 +93,7 @@ class ConstantDataCharArray(val value: List<WasmSymbol<Char>>, val fitsLatin1: I
     }
 
     override val sizeInBytes: Int = value.size *
-            if (fitsLatin1 != 0) BYTE_SIZE_BYTES else CHAR_SIZE_BYTES
+            if (fitsLatin1) BYTE_SIZE_BYTES else CHAR_SIZE_BYTES
 }
 
 class ConstantDataStruct(val elements: List<ConstantDataElement>) : ConstantDataElement() {

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/ir2wasm/WasmCompiledModuleFragment.kt

@@ -561,9 +561,7 @@ class WasmCompiledModuleFragment(
                     stringAddressAndId[string] = currentStringAddress to currentStringId
                     addressesAndLengths.add(currentStringAddress.toLong() or (string.length.toLong() shl 32))
 
-                    val fitsLatin1 = if (string.fitsLatin1) 1 else 0
-
-                    val constData = ConstantDataCharArray(string.toCharArray(), fitsLatin1)
+                    val constData = ConstantDataCharArray(string.toCharArray(), string.fitsLatin1)
                     stringDataSectionBytes += constData.toBytes().toList()
                     stringDataSectionStart += constData.sizeInBytes
                 } else {

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/serialization/WasmDeserializer.kt

@@ -156,7 +156,7 @@ class WasmDeserializer(inputStream: InputStream, private val skipLocalNames: Boo
     private fun deserializeStructFieldDeclaration(): WasmStructFieldDeclaration {
         val name = deserializeString()
         val type = deserializeType()
-        val isMutable = b.readUByte().toBoolean()
+        val isMutable = deserializeBoolean()
         return WasmStructFieldDeclaration(name, type, isMutable)
     }
 
@@ -213,7 +213,7 @@ class WasmDeserializer(inputStream: InputStream, private val skipLocalNames: Boo
             name = deserializeString()
         }
         val type = deserializeType()
-        val isParameter = b.readUByte().toBoolean()
+        val isParameter = deserializeBoolean()
         return WasmLocal(id, name, type, isParameter)
     }
 
@@ -489,7 +489,7 @@ class WasmDeserializer(inputStream: InputStream, private val skipLocalNames: Boo
 
     private fun deserializeConstantDataCharArray(): ConstantDataCharArray {
         val value = deserializeList { deserializeSymbol { Char(deserializeInt()) } }
-        val fitsLatin1 = deserializeInt()
+        val fitsLatin1 = deserializeBoolean()
         return ConstantDataCharArray(value, fitsLatin1)
     }
 
@@ -555,6 +555,8 @@ class WasmDeserializer(inputStream: InputStream, private val skipLocalNames: Boo
 
     private fun deserializeInt() = b.readUInt32().toInt()
 
+    private fun deserializeBoolean() = b.readUByte().toBoolean()
+
     private fun skipInt() {
         b.skip(4)
     }

compiler/ir/backend.wasm/src/org/jetbrains/kotlin/backend/wasm/serialization/WasmSerializer.kt

@@ -223,7 +223,7 @@ class WasmSerializer(outputStream: OutputStream) {
     private fun serializeWasmStructFieldDeclaration(structFieldDecl: WasmStructFieldDeclaration) {
         serializeString(structFieldDecl.name)
         serializeWasmType(structFieldDecl.type)
-        b.writeByte(structFieldDecl.isMutable.toByte())
+        serializeBoolean(structFieldDecl.isMutable)
     }
 
     private fun serializeWasmType(type: WasmType) =
@@ -267,7 +267,7 @@ class WasmSerializer(outputStream: OutputStream) {
         b.writeUInt32(local.id.toUInt())
         serializeString(local.name)
         serializeWasmType(local.type)
-        b.writeByte(local.isParameter.toByte())
+        serializeBoolean(local.isParameter)
     }
 
     private fun serializeWasmInstr(instr: WasmInstr) {
@@ -515,7 +515,7 @@ class WasmSerializer(outputStream: OutputStream) {
 
     private fun serializeConstantDataCharArray(constantDataCharArray: ConstantDataCharArray) {
         serializeList(constantDataCharArray.value) { serializeWasmSymbolReadOnly(it) { b.writeUInt32(it.code.toUInt()) } }
-        serializeInt(constantDataCharArray.fitsLatin1)
+        serializeBoolean(constantDataCharArray.fitsLatin1)
     }
 
     private fun serializeConstantDataCharField(constantDataCharField: ConstantDataCharField) {
@@ -578,6 +578,10 @@ class WasmSerializer(outputStream: OutputStream) {
         b.writeUInt32(int.toUInt())
     }
 
+    private fun serializeBoolean(bool: Boolean) {
+        b.writeByte(bool.toByte())
+    }
+
     private fun serializeLong(long: Long) {
         b.writeUInt64(long.toULong())
     }