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OSC decoders/encoders moved from convert to type subpackage
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xemantic-osc-api/src/commonMain/kotlin/type/OscDecoders.kt
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| /* | ||
| * xemantic-osc - Kotlin idiomatic and multiplatform OSC protocol support | ||
| * Copyright (C) 2024 Kazimierz Pogoda | ||
| * | ||
| * This file is part of xemantic-osc. | ||
| * | ||
| * xemantic-osc is free software: you can redistribute it and/or modify it under the terms of the | ||
| * GNU Lesser General Public License as published by the Free Software Foundation, either version 3 | ||
| * of the License, or (at your option) any later version. | ||
| * | ||
| * xemantic-osc is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; | ||
| * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| * See the GNU Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License along with xemantic-osc. | ||
| * If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package com.xemantic.osc.type | ||
|
|
||
| import com.xemantic.osc.* | ||
| import kotlin.reflect.KType | ||
| import kotlin.reflect.typeOf | ||
|
|
||
| public class OscDecodersBuilder { | ||
| @PublishedApi | ||
| internal val decoders: MutableMap<KType, OscDecoder<*>> = mutableMapOf() | ||
| public inline fun <reified T> decoder( | ||
| typeTag: String? = null, | ||
| noinline decode: OscReader.() -> T | ||
| ) { | ||
| decoders[typeOf<T>()] = OscDecoder(typeTag, decode) | ||
| } | ||
| } | ||
|
|
||
| public fun oscDecoders( | ||
| block: OscDecodersBuilder.() -> Unit | ||
| ): Map<KType, OscDecoder<*>> = | ||
| OscDecodersBuilder().apply(block).decoders | ||
|
|
||
| public inline fun <reified T> OscReader.listOf( | ||
| elementTypeTag: Char, | ||
| crossinline elementDecoder: OscReader.() -> T | ||
| ): List<T> { | ||
| val typeTag = typeTag() | ||
| if (typeTag.any { it != elementTypeTag }) { | ||
| throw OscInputException( | ||
| "Cannot decode List<${typeOf<T>()}>, typeTag must consists " + | ||
| "of '$elementTypeTag' characters only, but was: $typeTag" | ||
| ) | ||
| } | ||
| return typeTag.map { elementDecoder(this) }.toList() | ||
| } | ||
|
|
||
| public val DEFAULT_OSC_DECODERS: Map<KType, OscDecoder<*>> = oscDecoders { | ||
| decoder<Int>("i") { int() } | ||
| decoder<Float>("f") { float() } | ||
| decoder<String>("s") { string() } | ||
| decoder<ByteArray>("b") { blob() } | ||
| decoder<Long>("h") { long() } | ||
| decoder<OscTimeTag>("t") { timeTag() } | ||
| decoder<Double>("d") { double() } | ||
| decoder<Char>("c") { char() } | ||
| decoder<Boolean> { typeTagToBoolean(typeTag()[0]) } | ||
| decoder<List<Int>> { listOf('i') { int() } } | ||
| decoder<List<Float>> { listOf('f') { float() } } | ||
| decoder<List<String>> { listOf('s') { string() } } | ||
| decoder<List<ByteArray>> { listOf('b') { blob() } } | ||
| decoder<List<Long>> { listOf('h') { long() } } | ||
| decoder<List<OscTimeTag>> { listOf('t') { timeTag() } } | ||
| decoder<List<Double>> { listOf('d') { double() } } | ||
| decoder<List<Char>> { listOf('c') { char() } } | ||
| decoder<List<Boolean>> { typeTag().map { typeTagToBoolean(it) } } | ||
| decoder<List<Any>> { readByTypeTag(typeTag().toList()) } | ||
| } | ||
|
|
||
| private fun OscReader.readByTypeTag( | ||
| typeTag: List<Char> | ||
| ): List<Any> { | ||
| var nextIndex = 0 | ||
| return typeTag.mapIndexedNotNull { index, char -> | ||
| if (index >= nextIndex) { | ||
| if (char == '[') { | ||
| nextIndex = index + typeTag.drop(index).indexOf(']') + 1 | ||
| readByTypeTag( | ||
| typeTag.slice((index + 1)..<nextIndex - 1) | ||
| ) | ||
| } else { | ||
| readByTypeTag(char) | ||
| } | ||
| } else { | ||
| null | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public fun OscReader.readByTypeTag(typeTag: Char): Any = when (typeTag) { | ||
| 'i' -> int() | ||
| 'f' -> float() | ||
| 's' -> string() | ||
| 'b' -> blob() | ||
| 'h' -> long() | ||
| 't' -> timeTag() | ||
| 'd' -> double() | ||
| 'c' -> char() | ||
| 'm' -> midiMessage() | ||
| 'r' -> color() | ||
| 'T' -> true | ||
| 'F' -> false | ||
| else -> throw OscInputException( | ||
| "Unsupported OSC type tag: $typeTag" | ||
| ) | ||
| } | ||
|
|
||
| @Suppress("UNCHECKED_CAST") | ||
| public inline fun <reified T> defaultOscDecoder(): OscDecoder<T> = | ||
| (DEFAULT_OSC_DECODERS[typeOf<T>()] | ||
| ?: throw IllegalArgumentException( | ||
| "No encoder for specified type: ${typeOf<T>()}" | ||
| ) | ||
| ) as OscDecoder<T> | ||
|
|
||
| private fun typeTagToBoolean( | ||
| typeTag: Char | ||
| ): Boolean = when (typeTag) { | ||
| 'T' -> true | ||
| 'F' -> false | ||
| else -> throw OscInputException( | ||
| "Invalid typeTag for Boolean: $typeTag" | ||
| ) | ||
| } | ||
|
|
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