diff options
author | Felix Mulder <felix.mulder@gmail.com> | 2016-11-02 11:08:28 +0100 |
---|---|---|
committer | Guillaume Martres <smarter@ubuntu.com> | 2016-11-22 01:35:07 +0100 |
commit | 8a61ff432543a29234193cd1f7c14abd3f3d31a0 (patch) | |
tree | a8147561d307af862c295cfc8100d271063bb0dd /compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala | |
parent | 6a455fe6da5ff9c741d91279a2dc6fe2fb1b472f (diff) | |
download | dotty-8a61ff432543a29234193cd1f7c14abd3f3d31a0.tar.gz dotty-8a61ff432543a29234193cd1f7c14abd3f3d31a0.tar.bz2 dotty-8a61ff432543a29234193cd1f7c14abd3f3d31a0.zip |
Move compiler and compiler tests to compiler dir
Diffstat (limited to 'compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala')
-rw-r--r-- | compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala b/compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala new file mode 100644 index 000000000..dd29fa49d --- /dev/null +++ b/compiler/src/dotty/tools/dotc/core/classfile/ClassfileConstants.scala @@ -0,0 +1,378 @@ +package dotty.tools.dotc +package core +package classfile + +import scala.annotation.switch + +object ClassfileConstants { + + final val JAVA_MAGIC = 0xCAFEBABE + final val JAVA_MAJOR_VERSION = 45 + final val JAVA_MINOR_VERSION = 3 + + /** (see http://java.sun.com/docs/books/jvms/second_edition/jvms-clarify.html) + * + * If the `ACC_INTERFACE` flag is set, the `ACC_ABSTRACT` flag must also + * be set (ch. 2.13.1). + * + * A class file cannot have both its `ACC_FINAL` and `ACC_ABSTRACT` flags + * set (ch. 2.8.2). + * + * A field may have at most one of its `ACC_PRIVATE`, `ACC_PROTECTED`, + * `ACC_PUBLIC` flags set (ch. 2.7.4). + * + * A field may not have both its `ACC_FINAL` and `ACC_VOLATILE` flags set + * (ch. 2.9.1). + * + * If a method has its `ACC_ABSTRACT` flag set it must not have any of its + * `ACC_FINAL`, `ACC_NATIVE`, `ACC_PRIVATE`, `ACC_STATIC`, `ACC_STRICT`, + * or `ACC_SYNCHRONIZED` flags set (ch. 2.13.3.2). + * + * All interface methods must have their `ACC_ABSTRACT` and + * `ACC_PUBLIC` flags set. + * + * Note for future reference: see this thread on ACC_SUPER and + * how its enforcement differs on the android vm. + * https://groups.google.com/forum/?hl=en#!topic/jvm-languages/jVhzvq8-ZIk + * + */ // Class Field Method + final val JAVA_ACC_PUBLIC = 0x0001 // X X X + final val JAVA_ACC_PRIVATE = 0x0002 // X X + final val JAVA_ACC_PROTECTED = 0x0004 // X X + final val JAVA_ACC_STATIC = 0x0008 // X X + final val JAVA_ACC_FINAL = 0x0010 // X X X + final val JAVA_ACC_SUPER = 0x0020 // X + final val JAVA_ACC_SYNCHRONIZED = 0x0020 // X + final val JAVA_ACC_VOLATILE = 0x0040 // X + final val JAVA_ACC_BRIDGE = 0x0040 // X + final val JAVA_ACC_TRANSIENT = 0x0080 // X + final val JAVA_ACC_VARARGS = 0x0080 // X + final val JAVA_ACC_NATIVE = 0x0100 // X + final val JAVA_ACC_INTERFACE = 0x0200 // X + final val JAVA_ACC_ABSTRACT = 0x0400 // X X + final val JAVA_ACC_STRICT = 0x0800 // X + final val JAVA_ACC_SYNTHETIC = 0x1000 // X X X + final val JAVA_ACC_ANNOTATION = 0x2000 // X + final val JAVA_ACC_ENUM = 0x4000 // X X + + // tags describing the type of a literal in the constant pool + final val CONSTANT_UTF8 = 1 + final val CONSTANT_UNICODE = 2 + final val CONSTANT_INTEGER = 3 + final val CONSTANT_FLOAT = 4 + final val CONSTANT_LONG = 5 + final val CONSTANT_DOUBLE = 6 + final val CONSTANT_CLASS = 7 + final val CONSTANT_STRING = 8 + final val CONSTANT_FIELDREF = 9 + final val CONSTANT_METHODREF = 10 + final val CONSTANT_INTFMETHODREF = 11 + final val CONSTANT_NAMEANDTYPE = 12 + + final val CONSTANT_METHODHANDLE = 15 + final val CONSTANT_METHODTYPE = 16 + final val CONSTANT_INVOKEDYNAMIC = 18 + + // tags describing the type of a literal in attribute values + final val BYTE_TAG = 'B' + final val CHAR_TAG = 'C' + final val DOUBLE_TAG = 'D' + final val FLOAT_TAG = 'F' + final val INT_TAG = 'I' + final val LONG_TAG = 'J' + final val SHORT_TAG = 'S' + final val BOOL_TAG = 'Z' + final val STRING_TAG = 's' + final val ENUM_TAG = 'e' + final val CLASS_TAG = 'c' + final val ARRAY_TAG = '[' + final val VOID_TAG = 'V' + final val TVAR_TAG = 'T' + final val OBJECT_TAG = 'L' + final val ANNOTATION_TAG = '@' + final val SCALA_NOTHING = "scala.runtime.Nothing$" + final val SCALA_NULL = "scala.runtime.Null$" + + + // tags describing the type of newarray + final val T_BOOLEAN = 4 + final val T_CHAR = 5 + final val T_FLOAT = 6 + final val T_DOUBLE = 7 + final val T_BYTE = 8 + final val T_SHORT = 9 + final val T_INT = 10 + final val T_LONG = 11 + + // JVM mnemonics + final val nop = 0x00 + final val aconst_null = 0x01 + final val iconst_m1 = 0x02 + + final val iconst_0 = 0x03 + final val iconst_1 = 0x04 + final val iconst_2 = 0x05 + final val iconst_3 = 0x06 + final val iconst_4 = 0x07 + final val iconst_5 = 0x08 + + final val lconst_0 = 0x09 + final val lconst_1 = 0x0a + final val fconst_0 = 0x0b + final val fconst_1 = 0x0c + final val fconst_2 = 0x0d + final val dconst_0 = 0x0e + final val dconst_1 = 0x0f + + final val bipush = 0x10 + final val sipush = 0x11 + final val ldc = 0x12 + final val ldc_w = 0x13 + final val ldc2_w = 0x14 + + final val iload = 0x15 + final val lload = 0x16 + final val fload = 0x17 + final val dload = 0x18 + final val aload = 0x19 + + final val iload_0 = 0x1a + final val iload_1 = 0x1b + final val iload_2 = 0x1c + final val iload_3 = 0x1d + final val lload_0 = 0x1e + final val lload_1 = 0x1f + final val lload_2 = 0x20 + final val lload_3 = 0x21 + final val fload_0 = 0x22 + final val fload_1 = 0x23 + final val fload_2 = 0x24 + final val fload_3 = 0x25 + final val dload_0 = 0x26 + final val dload_1 = 0x27 + final val dload_2 = 0x28 + final val dload_3 = 0x29 + final val aload_0 = 0x2a + final val aload_1 = 0x2b + final val aload_2 = 0x2c + final val aload_3 = 0x2d + final val iaload = 0x2e + final val laload = 0x2f + final val faload = 0x30 + final val daload = 0x31 + final val aaload = 0x32 + final val baload = 0x33 + final val caload = 0x34 + final val saload = 0x35 + + final val istore = 0x36 + final val lstore = 0x37 + final val fstore = 0x38 + final val dstore = 0x39 + final val astore = 0x3a + final val istore_0 = 0x3b + final val istore_1 = 0x3c + final val istore_2 = 0x3d + final val istore_3 = 0x3e + final val lstore_0 = 0x3f + final val lstore_1 = 0x40 + final val lstore_2 = 0x41 + final val lstore_3 = 0x42 + final val fstore_0 = 0x43 + final val fstore_1 = 0x44 + final val fstore_2 = 0x45 + final val fstore_3 = 0x46 + final val dstore_0 = 0x47 + final val dstore_1 = 0x48 + final val dstore_2 = 0x49 + final val dstore_3 = 0x4a + final val astore_0 = 0x4b + final val astore_1 = 0x4c + final val astore_2 = 0x4d + final val astore_3 = 0x4e + final val iastore = 0x4f + final val lastore = 0x50 + final val fastore = 0x51 + final val dastore = 0x52 + final val aastore = 0x53 + final val bastore = 0x54 + final val castore = 0x55 + final val sastore = 0x56 + + final val pop = 0x57 + final val pop2 = 0x58 + final val dup = 0x59 + final val dup_x1 = 0x5a + final val dup_x2 = 0x5b + final val dup2 = 0x5c + final val dup2_x1 = 0x5d + final val dup2_x2 = 0x5e + final val swap = 0x5f + + final val iadd = 0x60 + final val ladd = 0x61 + final val fadd = 0x62 + final val dadd = 0x63 + final val isub = 0x64 + final val lsub = 0x65 + final val fsub = 0x66 + final val dsub = 0x67 + final val imul = 0x68 + final val lmul = 0x69 + final val fmul = 0x6a + final val dmul = 0x6b + final val idiv = 0x6c + final val ldiv = 0x6d + final val fdiv = 0x6e + final val ddiv = 0x6f + final val irem = 0x70 + final val lrem = 0x71 + final val frem = 0x72 + final val drem = 0x73 + + final val ineg = 0x74 + final val lneg = 0x75 + final val fneg = 0x76 + final val dneg = 0x77 + + final val ishl = 0x78 + final val lshl = 0x79 + final val ishr = 0x7a + final val lshr = 0x7b + final val iushr = 0x7c + final val lushr = 0x7d + final val iand = 0x7e + final val land = 0x7f + final val ior = 0x80 + final val lor = 0x81 + final val ixor = 0x82 + final val lxor = 0x83 + final val iinc = 0x84 + + final val i2l = 0x85 + final val i2f = 0x86 + final val i2d = 0x87 + final val l2i = 0x88 + final val l2f = 0x89 + final val l2d = 0x8a + final val f2i = 0x8b + final val f2l = 0x8c + final val f2d = 0x8d + final val d2i = 0x8e + final val d2l = 0x8f + final val d2f = 0x90 + final val i2b = 0x91 + final val i2c = 0x92 + final val i2s = 0x93 + + final val lcmp = 0x94 + final val fcmpl = 0x95 + final val fcmpg = 0x96 + final val dcmpl = 0x97 + final val dcmpg = 0x98 + + final val ifeq = 0x99 + final val ifne = 0x9a + final val iflt = 0x9b + final val ifge = 0x9c + final val ifgt = 0x9d + final val ifle = 0x9e + final val if_icmpeq = 0x9f + final val if_icmpne = 0xa0 + final val if_icmplt = 0xa1 + final val if_icmpge = 0xa2 + final val if_icmpgt = 0xa3 + final val if_icmple = 0xa4 + final val if_acmpeq = 0xa5 + final val if_acmpne = 0xa6 + final val goto = 0xa7 + final val jsr = 0xa8 + final val ret = 0xa9 + final val tableswitch = 0xaa + final val lookupswitch = 0xab + final val ireturn = 0xac + final val lreturn = 0xad + final val freturn = 0xae + final val dreturn = 0xaf + final val areturn = 0xb0 + final val return_ = 0xb1 + + final val getstatic = 0xb2 + final val putstatic = 0xb3 + final val getfield = 0xb4 + final val putfield = 0xb5 + + final val invokevirtual = 0xb6 + final val invokespecial = 0xb7 + final val invokestatic = 0xb8 + final val invokeinterface = 0xb9 + final val xxxunusedxxxx = 0xba + + final val new_ = 0xbb + final val newarray = 0xbc + final val anewarray = 0xbd + final val arraylength = 0xbe + final val athrow = 0xbf + final val checkcast = 0xc0 + final val instanceof = 0xc1 + final val monitorenter = 0xc2 + final val monitorexit = 0xc3 + final val wide = 0xc4 + final val multianewarray = 0xc5 + final val ifnull = 0xc6 + final val ifnonnull = 0xc7 + final val goto_w = 0xc8 + final val jsr_w = 0xc9 + + // reserved opcodes + final val breakpoint = 0xca + final val impdep1 = 0xfe + final val impdep2 = 0xff + + import Flags._ + abstract class FlagTranslation { + + protected def baseFlags(jflags: Int) = EmptyFlags + protected def isClass: Boolean = false + + private def translateFlag(jflag: Int): FlagSet = (jflag: @switch) match { + case JAVA_ACC_PRIVATE => Private + case JAVA_ACC_PROTECTED => Protected + case JAVA_ACC_FINAL => Final + case JAVA_ACC_SYNTHETIC => Synthetic + case JAVA_ACC_STATIC => JavaStatic + case JAVA_ACC_ABSTRACT => if (isClass) Abstract else Deferred + case JAVA_ACC_INTERFACE => PureInterfaceCreationFlags | JavaDefined + case _ => EmptyFlags + } + + private def addFlag(base: FlagSet, jflag: Int): FlagSet = + if (jflag == 0) base else base | translateFlag(jflag) + + private def translateFlags(jflags: Int, baseFlags: FlagSet): FlagSet = { + val nflags = + if ((jflags & JAVA_ACC_ANNOTATION) == 0) jflags + else jflags & ~(JAVA_ACC_ABSTRACT | JAVA_ACC_INTERFACE) // annotations are neither abstract nor interfaces + var res: FlagSet = baseFlags | JavaDefined + res = addFlag(res, nflags & JAVA_ACC_PRIVATE) + res = addFlag(res, nflags & JAVA_ACC_PROTECTED) + res = addFlag(res, nflags & JAVA_ACC_FINAL) + res = addFlag(res, nflags & JAVA_ACC_SYNTHETIC) + res = addFlag(res, nflags & JAVA_ACC_STATIC) + res = addFlag(res, nflags & JAVA_ACC_ABSTRACT) + res = addFlag(res, nflags & JAVA_ACC_INTERFACE) + res + } + + def flags(jflags: Int): FlagSet = translateFlags(jflags, baseFlags(jflags)) + } + val classTranslation = new FlagTranslation { + override def isClass = true + } + val fieldTranslation = new FlagTranslation { + override def baseFlags(jflags: Int) = if ((jflags & JAVA_ACC_FINAL) == 0) Mutable else EmptyFlags + } + val methodTranslation = new FlagTranslation { + override def baseFlags(jflags: Int) = if ((jflags & JAVA_ACC_BRIDGE) != 0) Bridge else EmptyFlags + } +} |