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[WASM] Implementation of Class references

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This commit is contained in:
Igor Yakovlev
2021-10-26 19:26:17 +02:00
committed by TeamCityServer
parent d9f2bd7963
commit ce360bb10b
43 changed files with 350 additions and 109 deletions
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libraries/stdlib/wasm/internal/kotlin/wasm/internal/TypeInfo.kt
+29 -2
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@@ -9,11 +9,30 @@ package kotlin.wasm.internal
internal const val TYPE_INFO_ELEMENT_SIZE = 4
internal const val TYPE_INFO_ITABLE_PTR_OFFSET = 0
internal const val TYPE_INFO_TYPE_PACKAGE_NAME_LENGTH_OFFSET = 0
internal const val TYPE_INFO_TYPE_PACKAGE_NAME_PRT_OFFSET = TYPE_INFO_TYPE_PACKAGE_NAME_LENGTH_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_TYPE_SIMPLE_NAME_LENGTH_OFFSET = TYPE_INFO_TYPE_PACKAGE_NAME_PRT_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_TYPE_SIMPLE_NAME_PRT_OFFSET = TYPE_INFO_TYPE_SIMPLE_NAME_LENGTH_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_SUPER_TYPE_OFFSET = TYPE_INFO_TYPE_SIMPLE_NAME_PRT_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_ITABLE_PTR_OFFSET = TYPE_INFO_SUPER_TYPE_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_VTABLE_LENGTH_OFFSET = TYPE_INFO_ITABLE_PTR_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal const val TYPE_INFO_VTABLE_OFFSET = TYPE_INFO_VTABLE_LENGTH_OFFSET + TYPE_INFO_ELEMENT_SIZE
internal class TypeInfoData(val typeId: Int, val packageName: String, val typeName: String)
internal fun getTypeInfoTypeDataByPtr(typeInfoPtr: Int): TypeInfoData {
val fqNameLength = wasm_i32_load(typeInfoPtr + TYPE_INFO_TYPE_PACKAGE_NAME_LENGTH_OFFSET)
val fqNameLengthPtr = wasm_i32_load(typeInfoPtr + TYPE_INFO_TYPE_PACKAGE_NAME_PRT_OFFSET)
val simpleNameLength = wasm_i32_load(typeInfoPtr + TYPE_INFO_TYPE_SIMPLE_NAME_LENGTH_OFFSET)
val simpleNamePtr = wasm_i32_load(typeInfoPtr + TYPE_INFO_TYPE_SIMPLE_NAME_PRT_OFFSET)
val packageName = stringLiteral(fqNameLengthPtr, fqNameLength)
val simpleName = stringLiteral(simpleNamePtr, simpleNameLength)
return TypeInfoData(typeInfoPtr, packageName, simpleName)
}
internal fun getSuperTypeId(typeInfoPtr: Int): Int =
wasm_i32_load(typeInfoPtr + TYPE_INFO_SUPER_TYPE_OFFSET)
internal fun getVtablePtr(obj: Any): Int =
obj.typeInfo + TYPE_INFO_VTABLE_OFFSET
@@ -60,4 +79,12 @@ internal fun <T> wasmClassId(): Int =
@ExcludedFromCodegen
internal fun <T> wasmInterfaceId(): Int =
implementedAsIntrinsic
@ExcludedFromCodegen
internal fun <T> wasmGetTypeInfoData(): TypeInfoData =
implementedAsIntrinsic
@ExcludedFromCodegen
internal fun <T> wasmTypeId(): Int =
implementedAsIntrinsic