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Compiler for the Scala Programming Language
/* NSC -- new Scala compiler
* Copyright 2005-2012 LAMP/EPFL
* @author Martin Odersky
*/
package scala.reflect
package internal
import java.security.MessageDigest
import Chars.isOperatorPart
import annotation.switch
import language.implicitConversions
import scala.collection.immutable
import scala.io.Codec
trait StdNames {
self: SymbolTable =>
def encode(str: String): TermName = newTermNameCached(NameTransformer.encode(str))
implicit def lowerTermNames(n: TermName): String = n.toString
/** Tensions: would like the keywords to be the very first names entered into the names
* storage so their ids count from 0, which simplifies the parser. Switched to abstract
* classes to avoid all the indirection which is generated with implementation-containing
* traits. Since all these classes use eager vals, that means the constructor with the
* keywords must run first. If it's the top in the superclass chain, then CommonNames
* must inherit from it, which means TypeNames would inherit keywords as well.
*
* Solution: Keywords extends CommonNames and uses early defs to beat the
* CommonNames constructor out of the starting gate. This is its builder.
*/
private class KeywordSetBuilder {
private var kws: Set[TermName] = Set()
def apply(s: String): TermName = {
val result = newTermNameCached(s)
kws = kws + result
result
}
def result: Set[TermName] = {
val result = kws
kws = null
result
}
}
private final object compactify extends (String => String) {
val md5 = MessageDigest.getInstance("MD5")
/**
* COMPACTIFY
*
* The hashed name has the form (prefix + marker + md5 + marker + suffix), where
* - prefix/suffix.length = MaxNameLength / 4
* - md5.length = 32
*
* We obtain the formula:
*
* FileNameLength = 2*(MaxNameLength / 4) + 2.marker.length + 32 + 6
*
* (+6 for ".class"). MaxNameLength can therefore be computed as follows:
*/
val marker = "$$$$"
val MaxNameLength = math.min(
settings.maxClassfileName.value - 6,
2 * (settings.maxClassfileName.value - 6 - 2*marker.length - 32)
)
def toMD5(s: String, edge: Int): String = {
val prefix = s take edge
val suffix = s takeRight edge
val cs = s.toArray
val bytes = Codec toUTF8 cs
md5 update bytes
val md5chars = (md5.digest() map (b => (b & 0xFF).toHexString)).mkString
prefix + marker + md5chars + marker + suffix
}
def apply(s: String): String = (
if (s.length <= MaxNameLength) s
else toMD5(s, MaxNameLength / 4)
)
}
abstract class CommonNames extends NamesApi {
type NameType >: Null <: Name
// Masking some implicits so as to allow our targeted => NameType.
protected val stringToTermName = null
protected val stringToTypeName = null
protected implicit def createNameType(name: String): NameType
def flattenedName(segments: Name*): NameType =
compactify(segments mkString NAME_JOIN_STRING)
val MODULE_SUFFIX_STRING: String = NameTransformer.MODULE_SUFFIX_STRING
val NAME_JOIN_STRING: String = NameTransformer.NAME_JOIN_STRING
val SINGLETON_SUFFIX: String = ".type"
val ANON_CLASS_NAME: NameType = "$anon"
val ANON_FUN_NAME: NameType = "$anonfun"
val EMPTY: NameType = ""
val EMPTY_PACKAGE_NAME: NameType = ""
val IMPL_CLASS_SUFFIX = "$class"
val IMPORT: NameType = ""
val MODULE_SUFFIX_NAME: NameType = MODULE_SUFFIX_STRING
val MODULE_VAR_SUFFIX: NameType = "$module"
val NAME_JOIN_NAME: NameType = NAME_JOIN_STRING
val PACKAGE: NameType = "package"
val ROOT: NameType = ""
val SPECIALIZED_SUFFIX: NameType = "$sp"
// value types (and AnyRef) are all used as terms as well
// as (at least) arguments to the @specialize annotation.
final val Boolean: NameType = "Boolean"
final val Byte: NameType = "Byte"
final val Char: NameType = "Char"
final val Double: NameType = "Double"
final val Float: NameType = "Float"
final val Int: NameType = "Int"
final val Long: NameType = "Long"
final val Short: NameType = "Short"
final val Unit: NameType = "Unit"
final val ScalaValueNames: scala.List[NameType] =
scala.List(Byte, Char, Short, Int, Long, Float, Double, Boolean, Unit)
// some types whose companions we utilize
final val AnyRef: NameType = "AnyRef"
final val Array: NameType = "Array"
final val List: NameType = "List"
final val Seq: NameType = "Seq"
final val Symbol: NameType = "Symbol"
final val ClassTag: NameType = "ClassTag"
final val AbsTypeTag: NameType = "AbsTypeTag"
final val TypeTag : NameType = "TypeTag"
final val Expr: NameType = "Expr"
final val String: NameType = "String"
// fictions we use as both types and terms
final val ERROR: NameType = ""
final val NO_NAME: NameType = "" // formerly NOSYMBOL
final val WILDCARD: NameType = "_"
}
/** This should be the first trait in the linearization. */
// abstract class Keywords extends CommonNames {
abstract class Keywords extends {
private val kw = new KeywordSetBuilder
final val ABSTRACTkw: TermName = kw("abstract")
final val CASEkw: TermName = kw("case")
final val CLASSkw: TermName = kw("class")
final val CATCHkw: TermName = kw("catch")
final val DEFkw: TermName = kw("def")
final val DOkw: TermName = kw("do")
final val ELSEkw: TermName = kw("else")
final val EXTENDSkw: TermName = kw("extends")
final val FALSEkw: TermName = kw("false")
final val FINALkw: TermName = kw("final")
final val FINALLYkw: TermName = kw("finally")
final val FORkw: TermName = kw("for")
final val FORSOMEkw: TermName = kw("forSome")
final val IFkw: TermName = kw("if")
final val IMPLICITkw: TermName = kw("implicit")
final val IMPORTkw: TermName = kw("import")
final val LAZYkw: TermName = kw("lazy")
final val MACROkw: TermName = kw("macro")
final val MATCHkw: TermName = kw("match")
final val NEWkw: TermName = kw("new")
final val NULLkw: TermName = kw("null")
final val OBJECTkw: TermName = kw("object")
final val OVERRIDEkw: TermName = kw("override")
final val PACKAGEkw: TermName = kw("package")
final val PRIVATEkw: TermName = kw("private")
final val PROTECTEDkw: TermName = kw("protected")
final val RETURNkw: TermName = kw("return")
final val SEALEDkw: TermName = kw("sealed")
final val SUPERkw: TermName = kw("super")
final val THENkw: TermName = kw("then")
final val THISkw: TermName = kw("this")
final val THROWkw: TermName = kw("throw")
final val TRAITkw: TermName = kw("trait")
final val TRUEkw: TermName = kw("true")
final val TRYkw: TermName = kw("try")
final val TYPEkw: TermName = kw("type")
final val VALkw: TermName = kw("val")
final val VARkw: TermName = kw("var")
final val WITHkw: TermName = kw("with")
final val WHILEkw: TermName = kw("while")
final val YIELDkw: TermName = kw("yield")
final val DOTkw: TermName = kw(".")
final val USCOREkw: TermName = kw("_")
final val COLONkw: TermName = kw(":")
final val EQUALSkw: TermName = kw("=")
final val ARROWkw: TermName = kw("=>")
final val LARROWkw: TermName = kw("<-")
final val SUBTYPEkw: TermName = kw("<:")
final val VIEWBOUNDkw: TermName = kw("<%")
final val SUPERTYPEkw: TermName = kw(">:")
final val HASHkw: TermName = kw("#")
final val ATkw: TermName = kw("@")
final val keywords = kw.result
} with CommonNames {
final val javaKeywords = new JavaKeywords()
}
abstract class TypeNames extends Keywords with TypeNamesApi {
type NameType = TypeName
protected implicit def createNameType(name: String): TypeName = newTypeNameCached(name)
final val BYNAME_PARAM_CLASS_NAME: NameType = ""
final val EQUALS_PATTERN_NAME: NameType = ""
final val JAVA_REPEATED_PARAM_CLASS_NAME: NameType = ""
final val LOCAL_CHILD: NameType = ""
final val REFINE_CLASS_NAME: NameType = ""
final val REPEATED_PARAM_CLASS_NAME: NameType = ""
final val WILDCARD_STAR: NameType = "_*"
final val REIFY_TREECREATOR_PREFIX: NameType = "$treecreator"
final val REIFY_TYPECREATOR_PREFIX: NameType = "$typecreator"
final val Any: NameType = "Any"
final val AnyVal: NameType = "AnyVal"
final val ExprApi: NameType = "ExprApi"
final val Mirror: NameType = "Mirror"
final val Nothing: NameType = "Nothing"
final val Null: NameType = "Null"
final val Object: NameType = "Object"
final val PartialFunction: NameType = "PartialFunction"
final val PrefixType: NameType = "PrefixType"
final val Product: NameType = "Product"
final val Serializable: NameType = "Serializable"
final val Singleton: NameType = "Singleton"
final val Throwable: NameType = "Throwable"
final val Annotation: NameType = "Annotation"
final val ClassfileAnnotation: NameType = "ClassfileAnnotation"
final val ClassManifest: NameType = "ClassManifest"
final val Enum: NameType = "Enum"
final val Group: NameType = "Group"
final val Tree: NameType = "Tree"
final val Type : NameType = "Type"
final val TypeTree: NameType = "TypeTree"
// embedding information
val TransparentProxy: NameType = "TransparentProxy"
val Struct: NameType = "Struct"
val Scope: NameType = "Scope"
// Annotation simple names, used in Namer
final val BeanPropertyAnnot: NameType = "BeanProperty"
final val BooleanBeanPropertyAnnot: NameType = "BooleanBeanProperty"
final val bridgeAnnot: NameType = "bridge"
final val staticAnnot: NameType = "static"
// Classfile Attributes
final val AnnotationDefaultATTR: NameType = "AnnotationDefault"
final val BridgeATTR: NameType = "Bridge"
final val ClassfileAnnotationATTR: NameType = "RuntimeInvisibleAnnotations" // RetentionPolicy.CLASS. Currently not used (Apr 2009).
final val CodeATTR: NameType = "Code"
final val ConstantValueATTR: NameType = "ConstantValue"
final val DeprecatedATTR: NameType = "Deprecated"
final val ExceptionsATTR: NameType = "Exceptions"
final val InnerClassesATTR: NameType = "InnerClasses"
final val LineNumberTableATTR: NameType = "LineNumberTable"
final val LocalVariableTableATTR: NameType = "LocalVariableTable"
final val RuntimeAnnotationATTR: NameType = "RuntimeVisibleAnnotations" // RetentionPolicy.RUNTIME
final val RuntimeParamAnnotationATTR: NameType = "RuntimeVisibleParameterAnnotations" // RetentionPolicy.RUNTIME (annotations on parameters)
final val ScalaATTR: NameType = "Scala"
final val ScalaSignatureATTR: NameType = "ScalaSig"
final val SignatureATTR: NameType = "Signature"
final val SourceFileATTR: NameType = "SourceFile"
final val SyntheticATTR: NameType = "Synthetic"
def dropSingletonName(name: Name): TypeName = (name dropRight SINGLETON_SUFFIX.length).toTypeName
def singletonName(name: Name): TypeName = (name append SINGLETON_SUFFIX).toTypeName
def implClassName(name: Name): TypeName = (name append IMPL_CLASS_SUFFIX).toTypeName
def interfaceName(implname: Name): TypeName = (implname dropRight IMPL_CLASS_SUFFIX.length).toTypeName
}
abstract class TermNames extends Keywords with TermNamesApi {
type NameType = TermName
protected implicit def createNameType(name: String): TermName = newTermNameCached(name)
/** Base strings from which synthetic names are derived. */
val BITMAP_PREFIX = "bitmap$"
val CHECK_IF_REFUTABLE_STRING = "check$ifrefutable$"
val DEFAULT_GETTER_STRING = "$default$"
val DEFAULT_GETTER_INIT_STRING = "$lessinit$greater" // CONSTRUCTOR.encoded, less is more
val DO_WHILE_PREFIX = "doWhile$"
val EVIDENCE_PARAM_PREFIX = "evidence$"
val EXCEPTION_RESULT_PREFIX = "exceptionResult"
val EXPAND_SEPARATOR_STRING = "$$"
val INTERPRETER_IMPORT_WRAPPER = "$iw"
val INTERPRETER_LINE_PREFIX = "line"
val INTERPRETER_VAR_PREFIX = "res"
val INTERPRETER_WRAPPER_SUFFIX = "$object"
val LOCALDUMMY_PREFIX = " true
case _ => false
}
def isOpAssignmentName(name: Name) = name match {
case raw.NE | raw.LE | raw.GE | EMPTY => false
case _ =>
name.endChar == '=' && name.startChar != '=' && isOperatorPart(name.startChar)
}
/** The expanded name of `name` relative to this class `base` with given `separator`
*/
def expandedName(name: TermName, base: Symbol, separator: String = EXPAND_SEPARATOR_STRING): TermName =
newTermNameCached(base.fullName('$') + separator + name)
/** The expanded setter name of `name` relative to this class `base`
*/
def expandedSetterName(name: TermName, base: Symbol): TermName =
expandedName(name, base, separator = TRAIT_SETTER_SEPARATOR_STRING)
/** If `name` is an expandedName name, the original name.
* Otherwise `name` itself.
*/
def originalName(name: Name): Name = {
var i = name.length
while (i >= 2 && !(name.charAt(i - 1) == '$' && name.charAt(i - 2) == '$')) i -= 1
if (i >= 2) {
while (i >= 3 && name.charAt(i - 3) == '$') i -= 1
name.subName(i, name.length)
} else name
}
def unspecializedName(name: Name): Name = (
if (name endsWith SPECIALIZED_SUFFIX)
name.subName(0, name.lastIndexOf('m') - 1)
else name
)
/*
def anonNumberSuffix(name: Name): Name = {
("" + name) lastIndexOf '$' match {
case -1 => nme.EMPTY
case idx =>
val s = name drop idx
if (s.toString forall (_.isDigit)) s
else nme.EMPTY
}
}
*/
/** Return the original name and the types on which this name
* is specialized. For example,
* {{{
* splitSpecializedName("foo$mIcD$sp") == ('foo', "I", "D")
* }}}
* `foo$mIcD$sp` is the name of a method specialized on two type
* parameters, the first one belonging to the method itself, on Int,
* and another one belonging to the enclosing class, on Double.
*/
def splitSpecializedName(name: Name): (Name, String, String) =
if (name endsWith SPECIALIZED_SUFFIX) {
val name1 = name dropRight SPECIALIZED_SUFFIX.length
val idxC = name1 lastIndexOf 'c'
val idxM = name1 lastIndexOf 'm'
(name1.subName(0, idxM - 1),
name1.subName(idxC + 1, name1.length).toString,
name1.subName(idxM + 1, idxC).toString)
} else
(name, "", "")
def getterName(name: TermName): TermName = if (isLocalName(name)) localToGetter(name) else name
def getterToLocal(name: TermName): TermName = name append LOCAL_SUFFIX_STRING
def getterToSetter(name: TermName): TermName = name append SETTER_SUFFIX
def localToGetter(name: TermName): TermName = name dropRight LOCAL_SUFFIX_STRING.length
def dropLocalSuffix(name: Name): Name = if (name endsWith ' ') name dropRight 1 else name
def setterToGetter(name: TermName): TermName = {
val p = name.pos(TRAIT_SETTER_SEPARATOR_STRING)
if (p < name.length)
setterToGetter(name drop (p + TRAIT_SETTER_SEPARATOR_STRING.length))
else
name.subName(0, name.length - SETTER_SUFFIX.length)
}
// Nominally, name$default$N, encoded for
def defaultGetterName(name: Name, pos: Int): TermName = {
val prefix = if (isConstructorName(name)) DEFAULT_GETTER_INIT_STRING else name
newTermName(prefix + DEFAULT_GETTER_STRING + pos)
}
// Nominally, name from name$default$N, CONSTRUCTOR for
def defaultGetterToMethod(name: Name): TermName = {
val p = name.pos(DEFAULT_GETTER_STRING)
if (p < name.length) {
val q = name.toTermName.subName(0, p)
// i.e., if (q.decoded == CONSTRUCTOR.toString) CONSTRUCTOR else q
if (q.toString == DEFAULT_GETTER_INIT_STRING) CONSTRUCTOR else q
} else name.toTermName
}
// If the name ends with $nn where nn are
// all digits, strip the $ and the digits.
// Otherwise return the argument.
def stripAnonNumberSuffix(name: Name): Name = {
var pos = name.length
while (pos > 0 && name.charAt(pos - 1).isDigit)
pos -= 1
if (pos <= 0 || pos == name.length || name.charAt(pos - 1) != '$') name
else name.subName(0, pos - 1)
}
def stripModuleSuffix(name: Name): Name = (
if (isModuleName(name)) name dropRight MODULE_SUFFIX_STRING.length else name
)
def localDummyName(clazz: Symbol): TermName = newTermName(LOCALDUMMY_PREFIX + clazz.name + ">")
def superName(name: Name): TermName = newTermName(SUPER_PREFIX_STRING + name)
/** The name of an accessor for protected symbols. */
def protName(name: Name): TermName = newTermName(PROTECTED_PREFIX + name)
/** The name of a setter for protected symbols. Used for inherited Java fields. */
def protSetterName(name: Name): TermName = newTermName(PROTECTED_SET_PREFIX + name)
final val Nil: NameType = "Nil"
final val Predef: NameType = "Predef"
final val ScalaRunTime: NameType = "ScalaRunTime"
final val Some: NameType = "Some"
val _1 : NameType = "_1"
val _2 : NameType = "_2"
val _3 : NameType = "_3"
val _4 : NameType = "_4"
val _5 : NameType = "_5"
val _6 : NameType = "_6"
val _7 : NameType = "_7"
val _8 : NameType = "_8"
val _9 : NameType = "_9"
val _10 : NameType = "_10"
val _11 : NameType = "_11"
val _12 : NameType = "_12"
val _13 : NameType = "_13"
val _14 : NameType = "_14"
val _15 : NameType = "_15"
val _16 : NameType = "_16"
val _17 : NameType = "_17"
val _18 : NameType = "_18"
val _19 : NameType = "_19"
val _20 : NameType = "_20"
val _21 : NameType = "_21"
val _22 : NameType = "_22"
val x_0 : NameType = "x$0"
val x_1 : NameType = "x$1"
val x_2 : NameType = "x$2"
val x_3 : NameType = "x$3"
val x_4 : NameType = "x$4"
val x_5 : NameType = "x$5"
val x_6 : NameType = "x$6"
val x_7 : NameType = "x$7"
val x_8 : NameType = "x$8"
val x_9 : NameType = "x$9"
@switch def syntheticParamName(i: Int): TermName = i match {
case 0 => nme.x_0
case 1 => nme.x_1
case 2 => nme.x_2
case 3 => nme.x_3
case 4 => nme.x_4
case 5 => nme.x_5
case 6 => nme.x_6
case 7 => nme.x_7
case 8 => nme.x_8
case 9 => nme.x_9
case _ => newTermName("x$" + i)
}
@switch def productAccessorName(j: Int): TermName = j match {
case 1 => nme._1
case 2 => nme._2
case 3 => nme._3
case 4 => nme._4
case 5 => nme._5
case 6 => nme._6
case 7 => nme._7
case 8 => nme._8
case 9 => nme._9
case 10 => nme._10
case 11 => nme._11
case 12 => nme._12
case 13 => nme._13
case 14 => nme._14
case 15 => nme._15
case 16 => nme._16
case 17 => nme._17
case 18 => nme._18
case 19 => nme._19
case 20 => nme._20
case 21 => nme._21
case 22 => nme._22
case _ => newTermName("_" + j)
}
val ??? = encode("???")
val wrapRefArray: NameType = "wrapRefArray"
val wrapByteArray: NameType = "wrapByteArray"
val wrapShortArray: NameType = "wrapShortArray"
val wrapCharArray: NameType = "wrapCharArray"
val wrapIntArray: NameType = "wrapIntArray"
val wrapLongArray: NameType = "wrapLongArray"
val wrapFloatArray: NameType = "wrapFloatArray"
val wrapDoubleArray: NameType = "wrapDoubleArray"
val wrapBooleanArray: NameType = "wrapBooleanArray"
val wrapUnitArray: NameType = "wrapUnitArray"
val genericWrapArray: NameType = "genericWrapArray"
// Compiler utilized names
val AnnotatedType: NameType = "AnnotatedType"
val AnnotationInfo: NameType = "AnnotationInfo"
val Any: NameType = "Any"
val AnyVal: NameType = "AnyVal"
val AppliedTypeTree: NameType = "AppliedTypeTree"
val Apply: NameType = "Apply"
val ArrayAnnotArg: NameType = "ArrayAnnotArg"
val Constant: NameType = "Constant"
val ConstantType: NameType = "ConstantType"
val EmptyPackage: NameType = "EmptyPackage"
val EmptyPackageClass: NameType = "EmptyPackageClass"
val ExistentialTypeTree: NameType = "ExistentialTypeTree"
val Flag : NameType = "Flag"
val Ident: NameType = "Ident"
val Import: NameType = "Import"
val Literal: NameType = "Literal"
val LiteralAnnotArg: NameType = "LiteralAnnotArg"
val Modifiers: NameType = "Modifiers"
val NestedAnnotArg: NameType = "NestedAnnotArg"
val NoFlags: NameType = "NoFlags"
val NoPrefix: NameType = "NoPrefix"
val NoSymbol: NameType = "NoSymbol"
val Nothing: NameType = "Nothing"
val NoType: NameType = "NoType"
val Null: NameType = "Null"
val Object: NameType = "Object"
val RootPackage: NameType = "RootPackage"
val RootClass: NameType = "RootClass"
val Select: NameType = "Select"
val StringContext: NameType = "StringContext"
val This: NameType = "This"
val ThisType: NameType = "ThisType"
val Tree : NameType = "Tree"
val Tuple2: NameType = "Tuple2"
val TYPE_ : NameType = "TYPE"
val TypeApply: NameType = "TypeApply"
val TypeRef: NameType = "TypeRef"
val TypeTree: NameType = "TypeTree"
val UNIT : NameType = "UNIT"
val add_ : NameType = "add"
val annotation: NameType = "annotation"
val anyValClass: NameType = "anyValClass"
val append: NameType = "append"
val apply: NameType = "apply"
val applyDynamic: NameType = "applyDynamic"
val applyDynamicNamed: NameType = "applyDynamicNamed"
val applyOrElse: NameType = "applyOrElse"
val args : NameType = "args"
val argv : NameType = "argv"
val arrayClass: NameType = "arrayClass"
val arrayElementClass: NameType = "arrayElementClass"
val arrayValue: NameType = "arrayValue"
val array_apply : NameType = "array_apply"
val array_clone : NameType = "array_clone"
val array_length : NameType = "array_length"
val array_update : NameType = "array_update"
val arraycopy: NameType = "arraycopy"
val asTerm: NameType = "asTerm"
val asModule: NameType = "asModule"
val asMethod: NameType = "asMethod"
val asType: NameType = "asType"
val asClass: NameType = "asClass"
val asInstanceOf_ : NameType = "asInstanceOf"
val asInstanceOf_Ob : NameType = "$asInstanceOf"
val assert_ : NameType = "assert"
val assume_ : NameType = "assume"
val basis : NameType = "basis"
val box: NameType = "box"
val build : NameType = "build"
val bytes: NameType = "bytes"
val canEqual_ : NameType = "canEqual"
val checkInitialized: NameType = "checkInitialized"
val ClassManifestFactory: NameType = "ClassManifestFactory"
val classOf: NameType = "classOf"
val clone_ : NameType = if (forMSIL) "MemberwiseClone" else "clone" // sn.OClone causes checkinit failure
val conforms: NameType = "conforms"
val copy: NameType = "copy"
val currentMirror: NameType = "currentMirror"
val definitions: NameType = "definitions"
val delayedInit: NameType = "delayedInit"
val delayedInitArg: NameType = "delayedInit$body"
val drop: NameType = "drop"
val elem: NameType = "elem"
val emptyValDef: NameType = "emptyValDef"
val ensureAccessible : NameType = "ensureAccessible"
val eq: NameType = "eq"
val equalsNumChar : NameType = "equalsNumChar"
val equalsNumNum : NameType = "equalsNumNum"
val equalsNumObject : NameType = "equalsNumObject"
val equals_ : NameType = if (forMSIL) "Equals" else "equals"
val error: NameType = "error"
val eval: NameType = "eval"
val ex: NameType = "ex"
val experimental: NameType = "experimental"
val f: NameType = "f"
val false_ : NameType = "false"
val filter: NameType = "filter"
val finalize_ : NameType = if (forMSIL) "Finalize" else "finalize"
val find_ : NameType = "find"
val flagsFromBits : NameType = "flagsFromBits"
val flatMap: NameType = "flatMap"
val foreach: NameType = "foreach"
val genericArrayOps: NameType = "genericArrayOps"
val get: NameType = "get"
val getOrElse: NameType = "getOrElse"
val hasNext: NameType = "hasNext"
val hashCode_ : NameType = if (forMSIL) "GetHashCode" else "hashCode"
val hash_ : NameType = "hash"
val head: NameType = "head"
val identity: NameType = "identity"
val implicitly: NameType = "implicitly"
val in: NameType = "in"
val info: NameType = "info"
val inlinedEquals: NameType = "inlinedEquals"
val isArray: NameType = "isArray"
val isDefinedAt: NameType = "isDefinedAt"
val isEmpty: NameType = "isEmpty"
val isInstanceOf_ : NameType = "isInstanceOf"
val isInstanceOf_Ob : NameType = "$isInstanceOf"
val java: NameType = "java"
val key: NameType = "key"
val lang: NameType = "lang"
val length: NameType = "length"
val lengthCompare: NameType = "lengthCompare"
val liftedTree: NameType = "liftedTree"
val `macro` : NameType = "macro"
val macroThis : NameType = "_this"
val macroContext : NameType = "c"
val main: NameType = "main"
val manifest: NameType = "manifest"
val ManifestFactory: NameType = "ManifestFactory"
val manifestToTypeTag: NameType = "manifestToTypeTag"
val map: NameType = "map"
val materializeClassTag: NameType = "materializeClassTag"
val materializeAbsTypeTag: NameType = "materializeAbsTypeTag"
val materializeTypeTag: NameType = "materializeTypeTag"
val mirror : NameType = "mirror"
val moduleClass : NameType = "moduleClass"
val name: NameType = "name"
val ne: NameType = "ne"
val newArray: NameType = "newArray"
val newFreeExistential: NameType = "newFreeExistential"
val newFreeTerm: NameType = "newFreeTerm"
val newFreeType: NameType = "newFreeType"
val newNestedSymbol: NameType = "newNestedSymbol"
val newScopeWith: NameType = "newScopeWith"
val next: NameType = "next"
val nmeNewTermName: NameType = "newTermName"
val nmeNewTypeName: NameType = "newTypeName"
val normalize: NameType = "normalize"
val notifyAll_ : NameType = "notifyAll"
val notify_ : NameType = "notify"
val null_ : NameType = "null"
val ofDim: NameType = "ofDim"
val origin: NameType = "origin"
val prefix : NameType = "prefix"
val productArity: NameType = "productArity"
val productElement: NameType = "productElement"
val productIterator: NameType = "productIterator"
val productPrefix: NameType = "productPrefix"
val readResolve: NameType = "readResolve"
val reflect : NameType = "reflect"
val reify : NameType = "reify"
val rootMirror : NameType = "rootMirror"
val runOrElse: NameType = "runOrElse"
val runtime: NameType = "runtime"
val runtimeClass: NameType = "runtimeClass"
val runtimeMirror: NameType = "runtimeMirror"
val sameElements: NameType = "sameElements"
val scala_ : NameType = "scala"
val selectDynamic: NameType = "selectDynamic"
val selectOverloadedMethod: NameType = "selectOverloadedMethod"
val selectTerm: NameType = "selectTerm"
val selectType: NameType = "selectType"
val self: NameType = "self"
val setAccessible: NameType = "setAccessible"
val setAnnotations: NameType = "setAnnotations"
val setSymbol: NameType = "setSymbol"
val setType: NameType = "setType"
val setTypeSignature: NameType = "setTypeSignature"
val splice: NameType = "splice"
val staticClass : NameType = "staticClass"
val staticModule : NameType = "staticModule"
val staticPackage : NameType = "staticPackage"
val synchronized_ : NameType = "synchronized"
val tail: NameType = "tail"
val `then` : NameType = "then"
val this_ : NameType = "this"
val thisPrefix : NameType = "thisPrefix"
val throw_ : NameType = "throw"
val toArray: NameType = "toArray"
val toList: NameType = "toList"
val toObjectArray : NameType = "toObjectArray"
val toSeq: NameType = "toSeq"
val toString_ : NameType = if (forMSIL) "ToString" else "toString"
val toTypeConstructor: NameType = "toTypeConstructor"
val tpe : NameType = "tpe"
val tree : NameType = "tree"
val true_ : NameType = "true"
val typedProductIterator: NameType = "typedProductIterator"
val typeTagToManifest: NameType = "typeTagToManifest"
val unapply: NameType = "unapply"
val unapplySeq: NameType = "unapplySeq"
val unbox: NameType = "unbox"
val universe: NameType = "universe"
val update: NameType = "update"
val updateDynamic: NameType = "updateDynamic"
val value: NameType = "value"
val valueOf : NameType = "valueOf"
val values : NameType = "values"
val view_ : NameType = "view"
val wait_ : NameType = "wait"
val withFilter: NameType = "withFilter"
val wrap: NameType = "wrap"
val zip: NameType = "zip"
val synthSwitch: NameType = "$synthSwitch"
// embedding information
val _doWhile = newTermName("__doWhile")
val _equal = newTermName("__equal")
val _ifThenElse = newTermName("__ifThenElse")
val _new = newTermName("__new")
val _newVar = newTermName("__newVar")
val _assign = newTermName("__assign")
val _return = newTermName("__return")
val _whileDo = newTermName("__whileDo")
val _forward = newTermName("__forward")
// unencoded operators
object raw {
final val AMP : NameType = "&"
final val BANG : NameType = "!"
final val BAR : NameType = "|"
final val DOLLAR: NameType = "$"
final val GE: NameType = ">="
final val LE: NameType = "<="
final val MINUS: NameType = "-"
final val NE: NameType = "!="
final val PLUS : NameType = "+"
final val SLASH: NameType = "/"
final val STAR : NameType = "*"
final val TILDE: NameType = "~"
final val isUnary: Set[Name] = Set(MINUS, PLUS, TILDE, BANG)
}
// value-conversion methods
val toByte: NameType = "toByte"
val toShort: NameType = "toShort"
val toChar: NameType = "toChar"
val toInt: NameType = "toInt"
val toLong: NameType = "toLong"
val toFloat: NameType = "toFloat"
val toDouble: NameType = "toDouble"
// primitive operation methods for structual types mostly
// overlap with the above, but not for these two.
val toCharacter: NameType = "toCharacter"
val toInteger: NameType = "toInteger"
def newLazyValSlowComputeName(lzyValName: Name) = lzyValName append LAZY_SLOW_SUFFIX
// ASCII names for operators
val ADD = encode("+")
val AND = encode("&")
val ASR = encode(">>")
val DIV = encode("/")
val EQ = encode("==")
val EQL = encode("=")
val GE = encode(">=")
val GT = encode(">")
val HASHHASH = encode("##")
val LE = encode("<=")
val LSL = encode("<<")
val LSR = encode(">>>")
val LT = encode("<")
val MINUS = encode("-")
val MOD = encode("%")
val MUL = encode("*")
val NE = encode("!=")
val OR = encode("|")
val PLUS = ADD // technically redundant, but ADD looks funny with MINUS
val SUB = MINUS // ... as does SUB with PLUS
val XOR = encode("^")
val ZAND = encode("&&")
val ZOR = encode("||")
// unary operators
val UNARY_~ = encode("unary_~")
val UNARY_+ = encode("unary_+")
val UNARY_- = encode("unary_-")
val UNARY_! = encode("unary_!")
// Grouped here so Cleanup knows what tests to perform.
val CommonOpNames = Set[Name](OR, XOR, AND, EQ, NE)
val ConversionNames = Set[Name](toByte, toChar, toDouble, toFloat, toInt, toLong, toShort)
val BooleanOpNames = Set[Name](ZOR, ZAND, UNARY_!) ++ CommonOpNames
val NumberOpNames = (
Set[Name](ADD, SUB, MUL, DIV, MOD, LSL, LSR, ASR, LT, LE, GE, GT)
++ Set(UNARY_+, UNARY_-, UNARY_!)
++ ConversionNames
++ CommonOpNames
)
val add: NameType = "add"
val complement: NameType = "complement"
val divide: NameType = "divide"
val multiply: NameType = "multiply"
val negate: NameType = "negate"
val positive: NameType = "positive"
val shiftLogicalRight: NameType = "shiftLogicalRight"
val shiftSignedLeft: NameType = "shiftSignedLeft"
val shiftSignedRight: NameType = "shiftSignedRight"
val subtract: NameType = "subtract"
val takeAnd: NameType = "takeAnd"
val takeConditionalAnd: NameType = "takeConditionalAnd"
val takeConditionalOr: NameType = "takeConditionalOr"
val takeModulo: NameType = "takeModulo"
val takeNot: NameType = "takeNot"
val takeOr: NameType = "takeOr"
val takeXor: NameType = "takeXor"
val testEqual: NameType = "testEqual"
val testGreaterOrEqualThan: NameType = "testGreaterOrEqualThan"
val testGreaterThan: NameType = "testGreaterThan"
val testLessOrEqualThan: NameType = "testLessOrEqualThan"
val testLessThan: NameType = "testLessThan"
val testNotEqual: NameType = "testNotEqual"
def toUnaryName(name: TermName): TermName = name match {
case raw.MINUS => UNARY_-
case raw.PLUS => UNARY_+
case raw.TILDE => UNARY_~
case raw.BANG => UNARY_!
case _ => name
}
/** The name of a method which stands in for a primitive operation
* during structural type dispatch.
*/
def primitiveInfixMethodName(name: Name): TermName = name match {
case OR => takeOr
case XOR => takeXor
case AND => takeAnd
case EQ => testEqual
case NE => testNotEqual
case ADD => add
case SUB => subtract
case MUL => multiply
case DIV => divide
case MOD => takeModulo
case LSL => shiftSignedLeft
case LSR => shiftLogicalRight
case ASR => shiftSignedRight
case LT => testLessThan
case LE => testLessOrEqualThan
case GE => testGreaterOrEqualThan
case GT => testGreaterThan
case ZOR => takeConditionalOr
case ZAND => takeConditionalAnd
case _ => NO_NAME
}
/** Postfix/prefix, really.
*/
def primitivePostfixMethodName(name: Name): TermName = name match {
case UNARY_! => takeNot
case UNARY_+ => positive
case UNARY_- => negate
case UNARY_~ => complement
case `toByte` => toByte
case `toShort` => toShort
case `toChar` => toCharacter
case `toInt` => toInteger
case `toLong` => toLong
case `toFloat` => toFloat
case `toDouble` => toDouble
case _ => NO_NAME
}
def primitiveMethodName(name: Name): TermName =
primitiveInfixMethodName(name) match {
case NO_NAME => primitivePostfixMethodName(name)
case name => name
}
/** Translate a String into a list of simple TypeNames and TermNames.
* In all segments before the last, type/term is determined by whether
* the following separator char is '.' or '#'. In the last segment,
* the argument "assumeTerm" determines it. Examples:
*
* package foo {
* object Lorax { object Wog ; class Wog }
* class Lorax { object Zax ; class Zax }
* }
*
* f("foo.Lorax", true) == List("foo": Term, "Lorax": Term) // object Lorax
* f("foo.Lorax", false) == List("foo": Term, "Lorax": Type) // class Lorax
* f("Lorax.Wog", true) == List("Lorax": Term, "Wog": Term) // object Wog
* f("Lorax.Wog", false) == List("Lorax": Term, "Wog": Type) // class Wog
* f("Lorax#Zax", true) == List("Lorax": Type, "Zax": Term) // object Zax
* f("Lorax#Zax", false) == List("Lorax": Type, "Zax": Type) // class Zax
*
* Note that in actual scala syntax you cannot refer to object Zax without an
* instance of Lorax, so Lorax#Zax could only mean the type. One might think
* that Lorax#Zax.type would work, but this is not accepted by the parser.
* For the purposes of referencing that object, the syntax is allowed.
*/
def segments(name: String, assumeTerm: Boolean): List[Name] = {
def mkName(str: String, term: Boolean): Name =
if (term) newTermName(str) else newTypeName(str)
name.indexWhere(ch => ch == '.' || ch == '#') match {
// it's the last segment: the parameter tells us whether type or term
case -1 => if (name == "") scala.Nil else scala.List(mkName(name, assumeTerm))
// otherwise, we can tell based on whether '#' or '.' is the following char.
case idx =>
val (simple, div, rest) = (name take idx, name charAt idx, name drop idx + 1)
mkName(simple, div == '.') :: segments(rest, assumeTerm)
}
}
def newBitmapName(bitmapPrefix: Name, n: Int) = bitmapPrefix append ("" + n)
val BITMAP_NORMAL: NameType = BITMAP_PREFIX + "" // initialization bitmap for public/protected lazy vals
val BITMAP_TRANSIENT: NameType = BITMAP_PREFIX + "trans$" // initialization bitmap for transient lazy vals
val BITMAP_CHECKINIT: NameType = BITMAP_PREFIX + "init$" // initialization bitmap for checkinit values
val BITMAP_CHECKINIT_TRANSIENT: NameType = BITMAP_PREFIX + "inittrans$" // initialization bitmap for transient checkinit values
}
object tpnme extends TypeNames { }
/** For fully qualified type names.
*/
object fulltpnme extends TypeNames {
val RuntimeNothing: NameType = "scala.runtime.Nothing$"
val RuntimeNull: NameType = "scala.runtime.Null$"
val JavaLangEnum: NameType = "java.lang.Enum"
}
/** Java binary names, like scala/runtime/Nothing$.
*/
object binarynme {
def toBinary(name: Name) = name mapName (_.replace('.', '/'))
val RuntimeNothing = toBinary(fulltpnme.RuntimeNothing).toTypeName
val RuntimeNull = toBinary(fulltpnme.RuntimeNull).toTypeName
}
val javanme = nme.javaKeywords
object nme extends TermNames {
def isModuleVarName(name: Name): Boolean =
stripAnonNumberSuffix(name) endsWith MODULE_VAR_SUFFIX
def moduleVarName(name: TermName): TermName =
newTermNameCached("" + name + MODULE_VAR_SUFFIX)
def getCause = sn.GetCause
def getClass_ = sn.GetClass
def getComponentType = sn.GetComponentType
def getMethod_ = sn.GetMethod
def invoke_ = sn.Invoke
val isBoxedNumberOrBoolean: NameType = "isBoxedNumberOrBoolean"
val isBoxedNumber: NameType = "isBoxedNumber"
val reflPolyCacheName: NameType = "reflPoly$Cache"
val reflClassCacheName: NameType = "reflClass$Cache"
val reflParamsCacheName: NameType = "reflParams$Cache"
val reflMethodCacheName: NameType = "reflMethod$Cache"
val reflMethodName: NameType = "reflMethod$Method"
private val reflectionCacheNames = Set[NameType](
reflPolyCacheName,
reflClassCacheName,
reflParamsCacheName,
reflMethodCacheName,
reflMethodName
)
def isReflectionCacheName(name: Name) = reflectionCacheNames exists (name startsWith _)
@deprecated("Use a method in tpnme", "2.10.0") def dropSingletonName(name: Name): TypeName = tpnme.dropSingletonName(name)
@deprecated("Use a method in tpnme", "2.10.0") def singletonName(name: Name): TypeName = tpnme.singletonName(name)
@deprecated("Use a method in tpnme", "2.10.0") def implClassName(name: Name): TypeName = tpnme.implClassName(name)
@deprecated("Use a method in tpnme", "2.10.0") def interfaceName(implname: Name): TypeName = tpnme.interfaceName(implname)
}
abstract class SymbolNames {
protected val stringToTermName = null
protected val stringToTypeName = null
protected implicit def createNameType(s: String): TypeName = newTypeNameCached(s)
val BeanProperty : TypeName
val BooleanBeanProperty : TypeName
val BoxedBoolean : TypeName
val BoxedCharacter : TypeName
val BoxedNumber : TypeName
val Class : TypeName
val Delegate : TypeName
val IOOBException : TypeName // IndexOutOfBoundsException
val InvTargetException : TypeName // InvocationTargetException
val JavaSerializable : TypeName
val MethodAsObject : TypeName
val NPException : TypeName // NullPointerException
val Object : TypeName
val String : TypeName
val Throwable : TypeName
val ValueType : TypeName
val ForName : TermName
val GetCause : TermName
val GetClass : TermName
val GetClassLoader : TermName
val GetComponentType : TermName
val GetMethod : TermName
val Invoke : TermName
val JavaLang : TermName
val Boxed: immutable.Map[TypeName, TypeName]
}
class JavaKeywords {
private val kw = new KeywordSetBuilder
final val ABSTRACTkw: TermName = kw("abstract")
final val ASSERTkw: TermName = kw("assert")
final val BOOLEANkw: TermName = kw("boolean")
final val BREAKkw: TermName = kw("break")
final val BYTEkw: TermName = kw("byte")
final val CASEkw: TermName = kw("case")
final val CATCHkw: TermName = kw("catch")
final val CHARkw: TermName = kw("char")
final val CLASSkw: TermName = kw("class")
final val CONSTkw: TermName = kw("const")
final val CONTINUEkw: TermName = kw("continue")
final val DEFAULTkw: TermName = kw("default")
final val DOkw: TermName = kw("do")
final val DOUBLEkw: TermName = kw("double")
final val ELSEkw: TermName = kw("else")
final val ENUMkw: TermName = kw("enum")
final val EXTENDSkw: TermName = kw("extends")
final val FINALkw: TermName = kw("final")
final val FINALLYkw: TermName = kw("finally")
final val FLOATkw: TermName = kw("float")
final val FORkw: TermName = kw("for")
final val IFkw: TermName = kw("if")
final val GOTOkw: TermName = kw("goto")
final val IMPLEMENTSkw: TermName = kw("implements")
final val IMPORTkw: TermName = kw("import")
final val INSTANCEOFkw: TermName = kw("instanceof")
final val INTkw: TermName = kw("int")
final val INTERFACEkw: TermName = kw("interface")
final val LONGkw: TermName = kw("long")
final val NATIVEkw: TermName = kw("native")
final val NEWkw: TermName = kw("new")
final val PACKAGEkw: TermName = kw("package")
final val PRIVATEkw: TermName = kw("private")
final val PROTECTEDkw: TermName = kw("protected")
final val PUBLICkw: TermName = kw("public")
final val RETURNkw: TermName = kw("return")
final val SHORTkw: TermName = kw("short")
final val STATICkw: TermName = kw("static")
final val STRICTFPkw: TermName = kw("strictfp")
final val SUPERkw: TermName = kw("super")
final val SWITCHkw: TermName = kw("switch")
final val SYNCHRONIZEDkw: TermName = kw("synchronized")
final val THISkw: TermName = kw("this")
final val THROWkw: TermName = kw("throw")
final val THROWSkw: TermName = kw("throws")
final val TRANSIENTkw: TermName = kw("transient")
final val TRYkw: TermName = kw("try")
final val VOIDkw: TermName = kw("void")
final val VOLATILEkw: TermName = kw("volatile")
final val WHILEkw: TermName = kw("while")
final val keywords = kw.result
}
private abstract class JavaNames extends SymbolNames {
final val BoxedBoolean: TypeName = "java.lang.Boolean"
final val BoxedByte: TypeName = "java.lang.Byte"
final val BoxedCharacter: TypeName = "java.lang.Character"
final val BoxedDouble: TypeName = "java.lang.Double"
final val BoxedFloat: TypeName = "java.lang.Float"
final val BoxedInteger: TypeName = "java.lang.Integer"
final val BoxedLong: TypeName = "java.lang.Long"
final val BoxedNumber: TypeName = "java.lang.Number"
final val BoxedShort: TypeName = "java.lang.Short"
final val Class: TypeName = "java.lang.Class"
final val Delegate: TypeName = tpnme.NO_NAME
final val IOOBException: TypeName = "java.lang.IndexOutOfBoundsException"
final val InvTargetException: TypeName = "java.lang.reflect.InvocationTargetException"
final val MethodAsObject: TypeName = "java.lang.reflect.Method"
final val NPException: TypeName = "java.lang.NullPointerException"
final val Object: TypeName = "java.lang.Object"
final val String: TypeName = "java.lang.String"
final val Throwable: TypeName = "java.lang.Throwable"
final val ValueType: TypeName = tpnme.NO_NAME
final val ForName: TermName = newTermName("forName")
final val GetCause: TermName = newTermName("getCause")
final val GetClass: TermName = newTermName("getClass")
final val GetClassLoader: TermName = newTermName("getClassLoader")
final val GetComponentType: TermName = newTermName("getComponentType")
final val GetMethod: TermName = newTermName("getMethod")
final val Invoke: TermName = newTermName("invoke")
final val JavaLang: TermName = newTermName("java.lang")
val Boxed = immutable.Map[TypeName, TypeName](
tpnme.Boolean -> BoxedBoolean,
tpnme.Byte -> BoxedByte,
tpnme.Char -> BoxedCharacter,
tpnme.Short -> BoxedShort,
tpnme.Int -> BoxedInteger,
tpnme.Long -> BoxedLong,
tpnme.Float -> BoxedFloat,
tpnme.Double -> BoxedDouble
)
}
private class MSILNames extends SymbolNames {
final val BeanProperty: TypeName = tpnme.NO_NAME
final val BooleanBeanProperty: TypeName = tpnme.NO_NAME
final val BoxedBoolean: TypeName = "System.IConvertible"
final val BoxedCharacter: TypeName = "System.IConvertible"
final val BoxedNumber: TypeName = "System.IConvertible"
final val Class: TypeName = "System.Type"
final val Delegate: TypeName = "System.MulticastDelegate"
final val IOOBException: TypeName = "System.IndexOutOfRangeException"
final val InvTargetException: TypeName = "System.Reflection.TargetInvocationException"
final val JavaSerializable: TypeName = tpnme.NO_NAME
final val MethodAsObject: TypeName = "System.Reflection.MethodInfo"
final val NPException: TypeName = "System.NullReferenceException"
final val Object: TypeName = "System.Object"
final val String: TypeName = "System.String"
final val Throwable: TypeName = "System.Exception"
final val ValueType: TypeName = "System.ValueType"
final val ForName: TermName = newTermName("GetType")
final val GetCause: TermName = newTermName("InnerException") /* System.Reflection.TargetInvocationException.InnerException */
final val GetClass: TermName = newTermName("GetType")
final lazy val GetClassLoader: TermName = throw new UnsupportedOperationException("Scala reflection is not supported on this platform");
final val GetComponentType: TermName = newTermName("GetElementType")
final val GetMethod: TermName = newTermName("GetMethod")
final val Invoke: TermName = newTermName("Invoke")
final val JavaLang: TermName = newTermName("System")
val Boxed = immutable.Map[TypeName, TypeName](
tpnme.Boolean -> "System.Boolean",
tpnme.Byte -> "System.SByte", // a scala.Byte is signed and a System.SByte too (unlike a System.Byte)
tpnme.Char -> "System.Char",
tpnme.Short -> "System.Int16",
tpnme.Int -> "System.Int32",
tpnme.Long -> "System.Int64",
tpnme.Float -> "System.Single",
tpnme.Double -> "System.Double"
)
}
private class J2SENames extends JavaNames {
final val BeanProperty: TypeName = "scala.beans.BeanProperty"
final val BooleanBeanProperty: TypeName = "scala.beans.BooleanBeanProperty"
final val JavaSerializable: TypeName = "java.io.Serializable"
}
lazy val sn: SymbolNames =
if (forMSIL) new MSILNames
else new J2SENames
}