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| @@ -0,0 +1,2 @@ | ||
| [*.tiny] | ||
| indent_style = tab |
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37 changes: 37 additions & 0 deletions
37
src/main/kotlin/de/skyrising/guardian/gen/mappings/formats.kt
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| package de.skyrising.guardian.gen.mappings | ||
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| import java.io.BufferedReader | ||
| import java.util.stream.Stream | ||
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| interface MappingsParser { | ||
| fun parse(reader: BufferedReader): MappingTree | ||
| } | ||
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| interface MappingsWriter { | ||
| fun write(mappings: MappingTree, writer: Appendable) | ||
| } | ||
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| interface MappingsFormat : MappingsParser, MappingsWriter | ||
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| abstract class LineBasedMappingFormat<T> : MappingsFormat { | ||
| fun parse(initialState: T?, reader: BufferedReader): MappingTree { | ||
| var state: T? = initialState | ||
| reader.lineSequence().forEach { | ||
| state = readLine(state, it) | ||
| } | ||
| return decodeState(state!!) | ||
| } | ||
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| override fun parse(reader: BufferedReader) = parse(null, reader) | ||
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| override fun write(mappings: MappingTree, writer: Appendable) { | ||
| getLines(mappings).forEach { writer.appendln(it) } | ||
| } | ||
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| abstract fun readLine(state: T?, line: String): T | ||
| abstract fun decodeState(state: T): MappingTree | ||
| abstract fun getLines(tree: MappingTree): Stream<String> | ||
| } | ||
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| inline fun String.toDotted() = this.replace('/', '.') | ||
| inline fun String.toSlashed() = this.replace('.', '/') |
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144 changes: 144 additions & 0 deletions
144
src/main/kotlin/de/skyrising/guardian/gen/mappings/proguard.kt
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| package de.skyrising.guardian.gen.mappings | ||
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| import jdk.internal.org.objectweb.asm.Type | ||
| import java.util.stream.Stream | ||
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| object ProguardMappings : LineBasedMappingFormat<Pair<MappingTree, ClassMapping?>>() { | ||
| override fun readLine(state: Pair<MappingTree, ClassMapping?>?, line: String): Pair<MappingTree, ClassMapping?> { | ||
| val mappings = state?.first ?: MappingTree(arrayOf("named", "official")) | ||
| var currentClass = state?.second | ||
| when(line[0]) { | ||
| '#' -> {} | ||
| ' ' -> parseMember(currentClass, line) | ||
| else -> { | ||
| val cls = parseClass(line) | ||
| currentClass = cls | ||
| mappings.classes.add(cls) | ||
| } | ||
| } | ||
| return Pair(mappings, currentClass) | ||
| } | ||
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| override fun decodeState(state: Pair<MappingTree, ClassMapping?>) = state.first | ||
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| override fun getLines(tree: MappingTree): Stream<String> = tree.classes.stream().flatMap { cls -> | ||
| Stream.of( | ||
| Stream.of("${cls[0].toDotted()} -> ${cls[1].toDotted()}:"), | ||
| cls.fields.stream().map { f -> | ||
| " ${getTypeName(f.defaultName.type)} ${f[0]} -> ${f[1]}" | ||
| }, | ||
| cls.methods.stream().map { m -> | ||
| val lineFrom = if (m is ProguardMethodMapping) m.lineFrom else 0 | ||
| val lineTo = if (m is ProguardMethodMapping) m.lineTo else 0 | ||
| val type = Type.getMethodType(m.defaultName.type) | ||
| val sb = StringBuilder(" ") | ||
| sb.append(lineFrom).append(':').append(lineTo).append(':') | ||
| sb.append(getTypeName(type.returnType.descriptor)).append(' ') | ||
| sb.append(m[0]).append('(') | ||
| var first = true | ||
| for (arg in type.argumentTypes) { | ||
| if (first) first = false | ||
| else sb.append(',') | ||
| sb.append(getTypeName(arg.descriptor)) | ||
| } | ||
| sb.append(") -> ").append(m[1]) | ||
| sb.toString() | ||
| } | ||
| ).flatMap { it } | ||
| } | ||
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| private fun parseClass(line: String): ClassMapping { | ||
| val arrow = line.indexOf(" -> ") | ||
| if (arrow < 0 || line[line.lastIndex] != ':') throw IllegalArgumentException("Expected '->' and ':' for class mapping") | ||
| val from = line.substring(0, arrow).toSlashed() | ||
| val to = line.substring(arrow + 4, line.lastIndex).toSlashed() | ||
| return ClassMapping(arrayOf(from, to)) | ||
| } | ||
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| private fun parseMember(currentClass: ClassMapping?, line: String) { | ||
| if (currentClass == null) throw IllegalStateException("Cannot parse class member without a class") | ||
| if (!line.startsWith(" ")) throw IllegalArgumentException("Expected line to start with ' '") | ||
| when (line[4]) { | ||
| in '0' .. '9' -> parseMethod(currentClass, line) | ||
| in 'a' .. 'z', in 'A' .. 'Z' -> parseField(currentClass, line) | ||
| else -> throw IllegalArgumentException("Expected method or field mapping, got '$line'") | ||
| } | ||
| } | ||
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| private fun parseField(currentClass: ClassMapping, line: String) { | ||
| val space = line.indexOf(' ', 4) | ||
| val arrow = line.indexOf(" -> ", space + 1) | ||
| if (space < 0 || arrow < 0) throw IllegalArgumentException("Invalid field mapping '$line'") | ||
| val fieldType = getTypeDescriptor(line.substring(4, space)) | ||
| val from = line.substring(space + 1, arrow) | ||
| val to = line.substring(arrow + 4) | ||
| currentClass.fields.add(FieldMappingImpl(MemberDescriptor(from, fieldType), arrayOf(from, to))) | ||
| } | ||
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| private fun parseMethod(currentClass: ClassMapping, line: String) { | ||
| val colon1 = line.indexOf(':', 4) | ||
| val colon2 = line.indexOf(':', colon1 + 1) | ||
| val space = line.indexOf(' ', colon2 + 1) | ||
| val openParen = line.indexOf('(', space + 1) | ||
| val closeParenArrow = line.indexOf(") -> ", openParen + 1) | ||
| if (colon1 < 0 || colon2 < 0 || space < 0 || openParen < 0 || closeParenArrow < 0) { | ||
| throw IllegalArgumentException("Invalid method mapping '$line'") | ||
| } | ||
| val lineFrom = line.substring(4, colon1).toInt() | ||
| val lineTo = line.substring(colon1 + 1, colon2).toInt() | ||
| val from = line.substring(space + 1, openParen) | ||
| val desc = StringBuilder("(") | ||
| var i = openParen + 1 | ||
| while (i < closeParenArrow) { | ||
| var argEnd = line.indexOf(',', i) | ||
| if (argEnd < 0) argEnd = closeParenArrow | ||
| desc.append(getTypeDescriptor(line.substring(i, argEnd))) | ||
| i = argEnd + 1 | ||
| } | ||
| desc.append(")").append(getTypeDescriptor(line.substring(colon2 + 1, space))) | ||
| val to = line.substring(closeParenArrow + 5) | ||
| currentClass.methods.add(ProguardMethodMapping(lineFrom, lineTo, MemberDescriptor(from, desc.toString()), arrayOf(from, to))) | ||
| } | ||
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| private fun getTypeDescriptor(type: String): String = when { | ||
| type.endsWith("[]") -> "[" + getTypeDescriptor(type.substring(0, type.length - 2)) | ||
| type in PRIMITIVE_DESCRIPTORS -> PRIMITIVE_DESCRIPTORS[type]!! | ||
| else -> "L" + type.toSlashed() + ";" | ||
| } | ||
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| private fun getTypeName(type: String): String = when { | ||
| type.startsWith("[") -> getTypeName(type.substring(1)) + "[]" | ||
| type in PRIMITIVE_NAMES -> PRIMITIVE_NAMES[type]!! | ||
| type.startsWith("L") -> type.substring(1, type.length - 1).toDotted() | ||
| else -> throw IllegalArgumentException(type) | ||
| } | ||
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| private val PRIMITIVE_DESCRIPTORS = mapOf( | ||
| "byte" to "B", | ||
| "char" to "C", | ||
| "double" to "D", | ||
| "float" to "F", | ||
| "int" to "I", | ||
| "long" to "J", | ||
| "short" to "S", | ||
| "void" to "V", | ||
| "boolean" to "Z" | ||
| ) | ||
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| private val PRIMITIVE_NAMES = mapOf( | ||
| "B" to "byte", | ||
| "C" to "char", | ||
| "D" to "double", | ||
| "F" to "float", | ||
| "I" to "int", | ||
| "J" to "long", | ||
| "S" to "short", | ||
| "V" to "void", | ||
| "Z" to "boolean" | ||
| ) | ||
| } | ||
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| class ProguardMethodMapping(val lineFrom: Int, val lineTo: Int, defaultName: MemberDescriptor, names: Array<String>) | ||
| : ArrayMemberMapping(defaultName, names), MethodMapping { | ||
| override fun invert(size: Int, index: Int, tree: MappingTree): ProguardMethodMapping = ProguardMethodMapping(lineFrom, lineTo, invertDefaultName(index, tree), invertNames(size, index)) | ||
| } |
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