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Diffstat (limited to 'src/library/scala/reflect/base/Trees.scala')
| -rw-r--r-- | src/library/scala/reflect/base/Trees.scala | 1459 |
1 files changed, 1459 insertions, 0 deletions
diff --git a/src/library/scala/reflect/base/Trees.scala b/src/library/scala/reflect/base/Trees.scala new file mode 100644 index 0000000000..298d229570 --- /dev/null +++ b/src/library/scala/reflect/base/Trees.scala @@ -0,0 +1,1459 @@ +/* NSC -- new Scala compiler + * Copyright 2005-2011 LAMP/EPFL + * @author Martin Odersky + */ +package scala.reflect +package base + +// [Eugene++] of all reflection APIs, this one is in the biggest need of review and documentation + +// Syncnote: Trees are currently not thread-safe. +// [Eugene++] now when trees are finally abstract types, can we do something for this? +trait Trees { self: Universe => + + /** The base API that all trees support */ + abstract class TreeBase extends Product { this: Tree => + /** ... */ + def isDef: Boolean + + /** ... */ + def isEmpty: Boolean + + /** The canonical way to test if a Tree represents a term. + */ + def isTerm: Boolean + + /** The canonical way to test if a Tree represents a type. + */ + def isType: Boolean + + /** Obtains string representation of a tree */ + override def toString: String = show(this) + } + + /** Obtains string representation of a tree */ + def show(tree: Tree): String + + /** Tree is the basis for scala's abstract syntax. The nodes are + * implemented as case classes, and the parameters which initialize + * a given tree are immutable: however Trees have several mutable + * fields which are manipulated in the course of typechecking, + * including pos, symbol, and tpe. + * + * Newly instantiated trees have tpe set to null (though it + * may be set immediately thereafter depending on how it is + * constructed.) When a tree is passed to the typer, typically via + * `typer.typed(tree)`, under normal circumstances the tpe must be + * null or the typer will ignore it. Furthermore, the typer is not + * required to return the same tree it was passed. + * + * Trees can be easily traversed with e.g. foreach on the root node; + * for a more nuanced traversal, subclass Traverser. Transformations + * can be considerably trickier: see the numerous subclasses of + * Transformer found around the compiler. + * + * Copying Trees should be done with care depending on whether + * it need be done lazily or strictly (see LazyTreeCopier and + * StrictTreeCopier) and on whether the contents of the mutable + * fields should be copied. The tree copiers will copy the mutable + * attributes to the new tree; calling Tree#duplicate will copy + * symbol and tpe, but all the positions will be focused. + * + * Trees can be coarsely divided into four mutually exclusive categories: + * + * - TermTrees, representing terms + * - TypTrees, representing types. Note that is `TypTree`, not `TypeTree`. + * - SymTrees, which may represent types or terms. + * - Other Trees, which have none of those as parents. + * + * SymTrees include important nodes Ident and Select, which are + * used as both terms and types; they are distinguishable based on + * whether the Name is a TermName or TypeName. The correct way for + * to test for a type or a term (on any Tree) are the isTerm/isType + * methods on Tree. + * + * "Others" are mostly syntactic or short-lived constructs. Examples + * include CaseDef, which wraps individual match cases: they are + * neither terms nor types, nor do they carry a symbol. Another + * example is Parens, which is eliminated during parsing. + */ + type Tree >: Null <: TreeBase + // [Eugene++] todo. discuss nullability of abstract types + + /** A tag that preserves the identity of the `Tree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TreeTag: ClassTag[Tree] + + /** The empty tree */ + val EmptyTree: Tree + + /** A tree for a term. Not all terms are TermTrees; use isTerm + * to reliably identify terms. + */ + type TermTree >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `TermTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TermTreeTag: ClassTag[TermTree] + + /** A tree for a type. Not all types are TypTrees; use isType + * to reliably identify types. + */ + type TypTree >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `TypTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypTreeTag: ClassTag[TypTree] + + /** A tree with a mutable symbol field, initialized to NoSymbol. + */ + type SymTree >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `SymTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val SymTreeTag: ClassTag[SymTree] + + /** A tree with a name - effectively, a DefTree or RefTree. + */ + type NameTree >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `NameTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val NameTreeTag: ClassTag[NameTree] + + /** A tree which references a symbol-carrying entity. + * References one, as opposed to defining one; definitions + * are in DefTrees. + */ + type RefTree >: Null <: SymTree with NameTree + + /** A tag that preserves the identity of the `RefTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val RefTreeTag: ClassTag[RefTree] + + /** A tree which defines a symbol-carrying entity. + */ + type DefTree >: Null <: SymTree with NameTree + + /** A tag that preserves the identity of the `DefTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val DefTreeTag: ClassTag[DefTree] + + /** Common base class for all member definitions: types, classes, + * objects, packages, vals and vars, defs. + */ + type MemberDef >: Null <: DefTree + + /** A tag that preserves the identity of the `MemberDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val MemberDefTag: ClassTag[MemberDef] + + /** A packaging, such as `package pid { stats }` + */ + type PackageDef >: Null <: MemberDef + + /** A tag that preserves the identity of the `PackageDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val PackageDefTag: ClassTag[PackageDef] + + /** The constructor/deconstructor for `PackageDef` instances. */ + val PackageDef: PackageDefExtractor + + /** An extractor class to create and pattern match with syntax `PackageDef(pid, stats)`. + * This AST node corresponds to the following Scala code: + * + * `package` pid { stats } + */ + abstract class PackageDefExtractor { + def apply(pid: RefTree, stats: List[Tree]): PackageDef + def unapply(packageDef: PackageDef): Option[(RefTree, List[Tree])] + } + + /** A common base class for class and object definitions. + */ + type ImplDef >: Null <: MemberDef + + /** A tag that preserves the identity of the `ImplDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ImplDefTag: ClassTag[ImplDef] + + /** A class definition. + */ + type ClassDef >: Null <: ImplDef + + /** A tag that preserves the identity of the `ClassDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ClassDefTag: ClassTag[ClassDef] + + /** The constructor/deconstructor for `ClassDef` instances. */ + val ClassDef: ClassDefExtractor + + /** An extractor class to create and pattern match with syntax `ClassDef(mods, name, tparams, impl)`. + * This AST node corresponds to the following Scala code: + * + * mods `class` name [tparams] impl + * + * Where impl stands for: + * + * `extends` parents { defs } + */ + abstract class ClassDefExtractor { + def apply(mods: Modifiers, name: TypeName, tparams: List[TypeDef], impl: Template): ClassDef + def unapply(classDef: ClassDef): Option[(Modifiers, TypeName, List[TypeDef], Template)] + } + + /** An object definition, e.g. `object Foo`. Internally, objects are + * quite frequently called modules to reduce ambiguity. + * Eliminated by refcheck. + */ + type ModuleDef >: Null <: ImplDef + + /** A tag that preserves the identity of the `ModuleDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ModuleDefTag: ClassTag[ModuleDef] + + /** The constructor/deconstructor for `ModuleDef` instances. */ + val ModuleDef: ModuleDefExtractor + + /** An extractor class to create and pattern match with syntax `ModuleDef(mods, name, impl)`. + * This AST node corresponds to the following Scala code: + * + * mods `object` name impl + * + * Where impl stands for: + * + * `extends` parents { defs } + */ + abstract class ModuleDefExtractor { + def apply(mods: Modifiers, name: TermName, impl: Template): ModuleDef + def unapply(moduleDef: ModuleDef): Option[(Modifiers, TermName, Template)] + } + + /** A common base class for ValDefs and DefDefs. + */ + type ValOrDefDef >: Null <: MemberDef + + /** A tag that preserves the identity of the `ValOrDefDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ValOrDefDefTag: ClassTag[ValOrDefDef] + + /** Broadly speaking, a value definition. All these are encoded as ValDefs: + * + * - immutable values, e.g. "val x" + * - mutable values, e.g. "var x" - the MUTABLE flag set in mods + * - lazy values, e.g. "lazy val x" - the LAZY flag set in mods + * - method parameters, see vparamss in DefDef - the PARAM flag is set in mods + * - explicit self-types, e.g. class A { self: Bar => } - !!! not sure what is set. + */ + type ValDef >: Null <: ValOrDefDef + + /** A tag that preserves the identity of the `ValDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ValDefTag: ClassTag[ValDef] + + /** The constructor/deconstructor for `ValDef` instances. */ + val ValDef: ValDefExtractor + + /** An extractor class to create and pattern match with syntax `ValDef(mods, name, tpt, rhs)`. + * This AST node corresponds to the following Scala code: + * + * mods `val` name: tpt = rhs + * + * mods `var` name: tpt = rhs + * + * mods name: tpt = rhs // in signatures of function and method definitions + * + * self: Bar => // self-types (!!! not sure what is set) + * + * If the type of a value is not specified explicitly (i.e. is meant to be inferred), + * this is expressed by having `tpt` set to `TypeTree()` (but not to an `EmptyTree`!). + */ + abstract class ValDefExtractor { + def apply(mods: Modifiers, name: TermName, tpt: Tree, rhs: Tree): ValDef + def unapply(valDef: ValDef): Option[(Modifiers, TermName, Tree, Tree)] + } + + /** A method or macro definition. + * @param name The name of the method or macro. Can be a type name in case this is a type macro + */ + type DefDef >: Null <: ValOrDefDef + + /** A tag that preserves the identity of the `DefDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val DefDefTag: ClassTag[DefDef] + + /** The constructor/deconstructor for `DefDef` instances. */ + val DefDef: DefDefExtractor + + /** An extractor class to create and pattern match with syntax `DefDef(mods, name, tparams, vparamss, tpt, rhs)`. + * This AST node corresponds to the following Scala code: + * + * mods `def` name[tparams](vparams_1)...(vparams_n): tpt = rhs + * + * If the return type is not specified explicitly (i.e. is meant to be inferred), + * this is expressed by having `tpt` set to `TypeTree()` (but not to an `EmptyTree`!). + */ + abstract class DefDefExtractor { + def apply(mods: Modifiers, name: Name, tparams: List[TypeDef], vparamss: List[List[ValDef]], tpt: Tree, rhs: Tree): DefDef + def unapply(defDef: DefDef): Option[(Modifiers, Name, List[TypeDef], List[List[ValDef]], Tree, Tree)] + } + + /** An abstract type, a type parameter, or a type alias. + * Eliminated by erasure. + */ + type TypeDef >: Null <: MemberDef + + /** A tag that preserves the identity of the `TypeDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypeDefTag: ClassTag[TypeDef] + + /** The constructor/deconstructor for `TypeDef` instances. */ + val TypeDef: TypeDefExtractor + + /** An extractor class to create and pattern match with syntax `TypeDef(mods, name, tparams, rhs)`. + * This AST node corresponds to the following Scala code: + * + * mods `type` name[tparams] = rhs + * + * mods `type` name[tparams] >: lo <: hi + * + * First usage illustrates `TypeDefs` representing type aliases and type parameters. + * Second usage illustrates `TypeDefs` representing abstract types, + * where lo and hi are both `TypeBoundsTrees` and `Modifier.deferred` is set in mods. + */ + abstract class TypeDefExtractor { + def apply(mods: Modifiers, name: TypeName, tparams: List[TypeDef], rhs: Tree): TypeDef + def unapply(typeDef: TypeDef): Option[(Modifiers, TypeName, List[TypeDef], Tree)] + } + + /** A labelled expression. Not expressible in language syntax, but + * generated by the compiler to simulate while/do-while loops, and + * also by the pattern matcher. + * + * The label acts much like a nested function, where `params` represents + * the incoming parameters. The symbol given to the LabelDef should have + * a MethodType, as if it were a nested function. + * + * Jumps are apply nodes attributed with a label's symbol. The + * arguments from the apply node will be passed to the label and + * assigned to the Idents. + * + * Forward jumps within a block are allowed. + */ + type LabelDef >: Null <: DefTree with TermTree + + /** A tag that preserves the identity of the `LabelDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val LabelDefTag: ClassTag[LabelDef] + + /** The constructor/deconstructor for `LabelDef` instances. */ + val LabelDef: LabelDefExtractor + + /** An extractor class to create and pattern match with syntax `LabelDef(name, params, rhs)`. + * + * This AST node does not have direct correspondence to Scala code. + * It is used for tailcalls and like. + * For example, while/do are desugared to label defs as follows: + * + * while (cond) body ==> LabelDef($L, List(), if (cond) { body; L$() } else ()) + * do body while (cond) ==> LabelDef($L, List(), body; if (cond) L$() else ()) + */ + abstract class LabelDefExtractor { + def apply(name: TermName, params: List[Ident], rhs: Tree): LabelDef + def unapply(labelDef: LabelDef): Option[(TermName, List[Ident], Tree)] + } + + /** Import selector + * + * Representation of an imported name its optional rename and their optional positions + * + * Eliminated by typecheck. + * + * @param name the imported name + * @param namePos its position or -1 if undefined + * @param rename the name the import is renamed to (== name if no renaming) + * @param renamePos the position of the rename or -1 if undefined + */ + type ImportSelector >: Null <: AnyRef + + /** A tag that preserves the identity of the `ImportSelector` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ImportSelectorTag: ClassTag[ImportSelector] + + /** The constructor/deconstructor for `ImportSelector` instances. */ + val ImportSelector: ImportSelectorExtractor + + /** An extractor class to create and pattern match with syntax `ImportSelector(name:, namePos, rename, renamePos)`. + * This is not an AST node, it is used as a part of the `Import` node. + */ + abstract class ImportSelectorExtractor { + def apply(name: Name, namePos: Int, rename: Name, renamePos: Int): ImportSelector + def unapply(importSelector: ImportSelector): Option[(Name, Int, Name, Int)] + } + + /** Import clause + * + * @param expr + * @param selectors + */ + type Import >: Null <: SymTree + + /** A tag that preserves the identity of the `Import` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ImportTag: ClassTag[Import] + + /** The constructor/deconstructor for `Import` instances. */ + val Import: ImportExtractor + + /** An extractor class to create and pattern match with syntax `Import(expr, selectors)`. + * This AST node corresponds to the following Scala code: + * + * import expr.{selectors} + * + * Selectors are a list of pairs of names (from, to). // [Eugene++] obviously, they no longer are. please, document! + * The last (and maybe only name) may be a nme.WILDCARD. For instance: + * + * import qual.{x, y => z, _} + * + * Would be represented as: + * + * Import(qual, List(("x", "x"), ("y", "z"), (WILDCARD, null))) + * + * The symbol of an `Import` is an import symbol @see Symbol.newImport. + * It's used primarily as a marker to check that the import has been typechecked. + */ + abstract class ImportExtractor { + def apply(expr: Tree, selectors: List[ImportSelector]): Import + def unapply(import_ : Import): Option[(Tree, List[ImportSelector])] + } + + /** Instantiation template of a class or trait + * + * @param parents + * @param body + */ + type Template >: Null <: SymTree + + /** A tag that preserves the identity of the `Template` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TemplateTag: ClassTag[Template] + + /** The constructor/deconstructor for `Template` instances. */ + val Template: TemplateExtractor + + /** An extractor class to create and pattern match with syntax `Template(parents, self, body)`. + * This AST node corresponds to the following Scala code: + * + * `extends` parents { self => body } + * + * In case when the self-type annotation is missing, it is represented as + * an empty value definition with nme.WILDCARD as name and NoType as type. + * + * The symbol of a template is a local dummy. @see Symbol.newLocalDummy + * The owner of the local dummy is the enclosing trait or class. + * The local dummy is itself the owner of any local blocks. For example: + * + * class C { + * def foo { // owner is C + * def bar // owner is local dummy + * } + * } + */ + abstract class TemplateExtractor { + def apply(parents: List[Tree], self: ValDef, body: List[Tree]): Template + def unapply(template: Template): Option[(List[Tree], ValDef, List[Tree])] + } + + /** Block of expressions (semicolon separated expressions) */ + type Block >: Null <: TermTree + + /** A tag that preserves the identity of the `Block` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val BlockTag: ClassTag[Block] + + /** The constructor/deconstructor for `Block` instances. */ + val Block: BlockExtractor + + /** An extractor class to create and pattern match with syntax `Block(stats, expr)`. + * This AST node corresponds to the following Scala code: + * + * { stats; expr } + * + * If the block is empty, the `expr` is set to `Literal(Constant(()))`. // [Eugene++] check this + */ + abstract class BlockExtractor { + def apply(stats: List[Tree], expr: Tree): Block + def unapply(block: Block): Option[(List[Tree], Tree)] + } + + /** Case clause in a pattern match, eliminated during explicitouter + * (except for occurrences in switch statements). + * Eliminated by patmat/explicitouter. + */ + type CaseDef >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `CaseDef` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val CaseDefTag: ClassTag[CaseDef] + + /** The constructor/deconstructor for `CaseDef` instances. */ + val CaseDef: CaseDefExtractor + + /** An extractor class to create and pattern match with syntax `CaseDef(pat, guard, body)`. + * This AST node corresponds to the following Scala code: + * + * `case` pat `if` guard => body + * + * If the guard is not present, the `guard` is set to `EmptyTree`. // [Eugene++] check this + * If the body is not specified, the `body` is set to `EmptyTree`. // [Eugene++] check this + */ + abstract class CaseDefExtractor { + def apply(pat: Tree, guard: Tree, body: Tree): CaseDef + def unapply(caseDef: CaseDef): Option[(Tree, Tree, Tree)] + } + + /** Alternatives of patterns, eliminated by explicitouter, except for + * occurrences in encoded Switch stmt (=remaining Match(CaseDef(...))) + * Eliminated by patmat/explicitouter. + */ + type Alternative >: Null <: TermTree + + /** A tag that preserves the identity of the `Alternative` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val AlternativeTag: ClassTag[Alternative] + + /** The constructor/deconstructor for `Alternative` instances. */ + val Alternative: AlternativeExtractor + + /** An extractor class to create and pattern match with syntax `Alternative(trees)`. + * This AST node corresponds to the following Scala code: + * + * pat1 | ... | patn + */ + abstract class AlternativeExtractor { + def apply(trees: List[Tree]): Alternative + def unapply(alternative: Alternative): Option[List[Tree]] + } + + /** Repetition of pattern. + * Eliminated by patmat/explicitouter. + */ + type Star >: Null <: TermTree + + /** A tag that preserves the identity of the `Star` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val StarTag: ClassTag[Star] + + /** The constructor/deconstructor for `Star` instances. */ + val Star: StarExtractor + + /** An extractor class to create and pattern match with syntax `Star(elem)`. + * This AST node corresponds to the following Scala code: + * + * pat* + */ + abstract class StarExtractor { + def apply(elem: Tree): Star + def unapply(star: Star): Option[Tree] + } + + /** Bind of a variable to a rhs pattern, eliminated by explicitouter + * Eliminated by patmat/explicitouter. + * + * @param name + * @param body + */ + type Bind >: Null <: DefTree + + /** A tag that preserves the identity of the `Bind` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val BindTag: ClassTag[Bind] + + /** The constructor/deconstructor for `Bind` instances. */ + val Bind: BindExtractor + + /** An extractor class to create and pattern match with syntax `Bind(name, body)`. + * This AST node corresponds to the following Scala code: + * + * pat* + */ + abstract class BindExtractor { + def apply(name: Name, body: Tree): Bind + def unapply(bind: Bind): Option[(Name, Tree)] + } + + /** Noone knows what this is. + * It is not idempotent w.r.t typechecking. + * Can we, please, remove it? + * Introduced by typer, eliminated by patmat/explicitouter. + */ + type UnApply >: Null <: TermTree + + /** A tag that preserves the identity of the `UnApply` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val UnApplyTag: ClassTag[UnApply] + + /** The constructor/deconstructor for `UnApply` instances. */ + val UnApply: UnApplyExtractor + + /** An extractor class to create and pattern match with syntax `UnApply(fun, args)`. + * This AST node does not have direct correspondence to Scala code, + * and is introduced when typechecking pattern matches and `try` blocks. + */ + abstract class UnApplyExtractor { + def apply(fun: Tree, args: List[Tree]): UnApply + def unapply(unApply: UnApply): Option[(Tree, List[Tree])] + } + + /** Array of expressions, needs to be translated in backend. + * This AST node is used to pass arguments to vararg arguments. + * Introduced by uncurry. + */ + type ArrayValue >: Null <: TermTree + + /** A tag that preserves the identity of the `ArrayValue` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ArrayValueTag: ClassTag[ArrayValue] + + /** The constructor/deconstructor for `ArrayValue` instances. */ + val ArrayValue: ArrayValueExtractor + + /** An extractor class to create and pattern match with syntax `ArrayValue(elemtpt, elems)`. + * This AST node does not have direct correspondence to Scala code, + * and is used to pass arguments to vararg arguments. For instance: + * + * printf("%s%d", foo, 42) + * + * Is translated to after uncurry to: + * + * Apply( + * Ident("printf"), + * Literal("%s%d"), + * ArrayValue(<Any>, List(Ident("foo"), Literal(42)))) + */ + abstract class ArrayValueExtractor { + def apply(elemtpt: Tree, elems: List[Tree]): ArrayValue + def unapply(arrayValue: ArrayValue): Option[(Tree, List[Tree])] + } + + /** Anonymous function, eliminated by lambdalift */ + type Function >: Null <: TermTree with SymTree + + /** A tag that preserves the identity of the `Function` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val FunctionTag: ClassTag[Function] + + /** The constructor/deconstructor for `Function` instances. */ + val Function: FunctionExtractor + + /** An extractor class to create and pattern match with syntax `Function(vparams, body)`. + * This AST node corresponds to the following Scala code: + * + * vparams => body + * + * The symbol of a Function is a synthetic value of name nme.ANON_FUN_NAME + * It is the owner of the function's parameters. + */ + abstract class FunctionExtractor { + def apply(vparams: List[ValDef], body: Tree): Function + def unapply(function: Function): Option[(List[ValDef], Tree)] + } + + /** Assignment */ + type Assign >: Null <: TermTree + + /** A tag that preserves the identity of the `Assign` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val AssignTag: ClassTag[Assign] + + /** The constructor/deconstructor for `Assign` instances. */ + val Assign: AssignExtractor + + /** An extractor class to create and pattern match with syntax `Assign(lhs, rhs)`. + * This AST node corresponds to the following Scala code: + * + * lhs = rhs + */ + abstract class AssignExtractor { + def apply(lhs: Tree, rhs: Tree): Assign + def unapply(assign: Assign): Option[(Tree, Tree)] + } + + /** Either an assignment or a named argument. Only appears in argument lists, + * eliminated by typecheck (doTypedApply), resurrected by reifier. + */ + type AssignOrNamedArg >: Null <: TermTree + + /** A tag that preserves the identity of the `AssignOrNamedArg` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val AssignOrNamedArgTag: ClassTag[AssignOrNamedArg] + + /** The constructor/deconstructor for `AssignOrNamedArg` instances. */ + val AssignOrNamedArg: AssignOrNamedArgExtractor + + /** An extractor class to create and pattern match with syntax `AssignOrNamedArg(lhs, rhs)`. + * This AST node corresponds to the following Scala code: + * + * @annotation(lhs = rhs) + * + * m.f(lhs = rhs) + */ + abstract class AssignOrNamedArgExtractor { + def apply(lhs: Tree, rhs: Tree): AssignOrNamedArg + def unapply(assignOrNamedArg: AssignOrNamedArg): Option[(Tree, Tree)] + } + + /** Conditional expression */ + type If >: Null <: TermTree + + /** A tag that preserves the identity of the `If` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val IfTag: ClassTag[If] + + /** The constructor/deconstructor for `If` instances. */ + val If: IfExtractor + + /** An extractor class to create and pattern match with syntax `If(cond, thenp, elsep)`. + * This AST node corresponds to the following Scala code: + * + * `if` (cond) thenp `else` elsep + * + * If the alternative is not present, the `elsep` is set to `EmptyTree`. // [Eugene++] check this + */ + abstract class IfExtractor { + def apply(cond: Tree, thenp: Tree, elsep: Tree): If + def unapply(if_ : If): Option[(Tree, Tree, Tree)] + } + + /** - Pattern matching expression (before explicitouter) + * - Switch statements (after explicitouter) + * + * After explicitouter, cases will satisfy the following constraints: + * + * - all guards are `EmptyTree`, + * - all patterns will be either `Literal(Constant(x:Int))` + * or `Alternative(lit|...|lit)` + * - except for an "otherwise" branch, which has pattern + * `Ident(nme.WILDCARD)` + */ + type Match >: Null <: TermTree + + /** A tag that preserves the identity of the `Match` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val MatchTag: ClassTag[Match] + + /** The constructor/deconstructor for `Match` instances. */ + val Match: MatchExtractor + + /** An extractor class to create and pattern match with syntax `Match(selector, cases)`. + * This AST node corresponds to the following Scala code: + * + * selector `match` { cases } + * + * // [Eugene++] say something about `val (foo, bar) = baz` and likes. + */ + abstract class MatchExtractor { + def apply(selector: Tree, cases: List[CaseDef]): Match + def unapply(match_ : Match): Option[(Tree, List[CaseDef])] + } + + /** Return expression */ + type Return >: Null <: TermTree with SymTree + + /** A tag that preserves the identity of the `Return` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ReturnTag: ClassTag[Return] + + /** The constructor/deconstructor for `Return` instances. */ + val Return: ReturnExtractor + + /** An extractor class to create and pattern match with syntax `Return(expr)`. + * This AST node corresponds to the following Scala code: + * + * `return` expr + * + * The symbol of a Return node is the enclosing method + */ + abstract class ReturnExtractor { + def apply(expr: Tree): Return + def unapply(return_ : Return): Option[Tree] + } + + /** [Eugene++] comment me! */ + type Try >: Null <: TermTree + + /** A tag that preserves the identity of the `Try` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TryTag: ClassTag[Try] + + /** The constructor/deconstructor for `Try` instances. */ + val Try: TryExtractor + + /** An extractor class to create and pattern match with syntax `Try(block, catches, finalizer)`. + * This AST node corresponds to the following Scala code: + * + * `try` block `catch` { catches } `finally` finalizer + * + * If the finalizer is not present, the `finalizer` is set to `EmptyTree`. // [Eugene++] check this + */ + abstract class TryExtractor { + def apply(block: Tree, catches: List[CaseDef], finalizer: Tree): Try + def unapply(try_ : Try): Option[(Tree, List[CaseDef], Tree)] + } + + /** Throw expression */ + type Throw >: Null <: TermTree + + /** A tag that preserves the identity of the `Throw` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ThrowTag: ClassTag[Throw] + + /** The constructor/deconstructor for `Throw` instances. */ + val Throw: ThrowExtractor + + /** An extractor class to create and pattern match with syntax `Throw(expr)`. + * This AST node corresponds to the following Scala code: + * + * `throw` expr + */ + abstract class ThrowExtractor { + def apply(expr: Tree): Throw + def unapply(throw_ : Throw): Option[Tree] + } + + /** Object instantiation + * One should always use factory method below to build a user level new. + * + * @param tpt a class type + */ + type New >: Null <: TermTree + + /** A tag that preserves the identity of the `New` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val NewTag: ClassTag[New] + + /** The constructor/deconstructor for `New` instances. */ + val New: NewExtractor + + /** An extractor class to create and pattern match with syntax `New(tpt)`. + * This AST node corresponds to the following Scala code: + * + * `new` T + * + * This node always occurs in the following context: + * + * (`new` tpt).<init>[targs](args) + */ + abstract class NewExtractor { + def apply(tpt: Tree): New + def unapply(new_ : New): Option[Tree] + } + + /** Type annotation, eliminated by cleanup */ + type Typed >: Null <: TermTree + + /** A tag that preserves the identity of the `Typed` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypedTag: ClassTag[Typed] + + /** The constructor/deconstructor for `Typed` instances. */ + val Typed: TypedExtractor + + /** An extractor class to create and pattern match with syntax `Typed(expr, tpt)`. + * This AST node corresponds to the following Scala code: + * + * expr: tpt + */ + abstract class TypedExtractor { + def apply(expr: Tree, tpt: Tree): Typed + def unapply(typed: Typed): Option[(Tree, Tree)] + } + + /** Common base class for Apply and TypeApply. This could in principle + * be a SymTree, but whether or not a Tree is a SymTree isn't used + * to settle any interesting questions, and it would add a useless + * field to all the instances (useless, since GenericApply forwards to + * the underlying fun.) + */ + type GenericApply >: Null <: TermTree + + /** A tag that preserves the identity of the `GenericApply` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val GenericApplyTag: ClassTag[GenericApply] + + /** Explicit type application. + * @PP: All signs point toward it being a requirement that args.nonEmpty, + * but I can't find that explicitly stated anywhere. Unless your last name + * is odersky, you should probably treat it as true. + */ + type TypeApply >: Null <: GenericApply + + /** A tag that preserves the identity of the `TypeApply` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypeApplyTag: ClassTag[TypeApply] + + /** The constructor/deconstructor for `TypeApply` instances. */ + val TypeApply: TypeApplyExtractor + + /** An extractor class to create and pattern match with syntax `TypeApply(fun, args)`. + * This AST node corresponds to the following Scala code: + * + * fun[args] + */ + abstract class TypeApplyExtractor { + def apply(fun: Tree, args: List[Tree]): TypeApply + def unapply(typeApply: TypeApply): Option[(Tree, List[Tree])] + } + + /** Value application */ + type Apply >: Null <: GenericApply + + /** A tag that preserves the identity of the `Apply` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ApplyTag: ClassTag[Apply] + + /** The constructor/deconstructor for `Apply` instances. */ + val Apply: ApplyExtractor + + /** An extractor class to create and pattern match with syntax `Apply(fun, args)`. + * This AST node corresponds to the following Scala code: + * + * fun(args) + * + * For instance: + * + * fun[targs](args) + * + * Is expressed as: + * + * Apply(TypeApply(fun, targs), args) + */ + abstract class ApplyExtractor { + def apply(fun: Tree, args: List[Tree]): Apply + def unapply(apply: Apply): Option[(Tree, List[Tree])] + } + + /** Dynamic value application. + * In a dynamic application q.f(as) + * - q is stored in qual + * - as is stored in args + * - f is stored as the node's symbol field. + * [Eugene++] what is it used for? + * Introduced by erasure, eliminated by cleanup. + */ + type ApplyDynamic >: Null <: TermTree with SymTree + + /** A tag that preserves the identity of the `ApplyDynamic` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ApplyDynamicTag: ClassTag[ApplyDynamic] + + /** The constructor/deconstructor for `ApplyDynamic` instances. */ + val ApplyDynamic: ApplyDynamicExtractor + + /** An extractor class to create and pattern match with syntax `ApplyDynamic(qual, args)`. + * This AST node corresponds to the following Scala code: + * + * fun(args) + * + * The symbol of an ApplyDynamic is the function symbol of `qual`, or NoSymbol, if there is none. + */ + abstract class ApplyDynamicExtractor { + def apply(qual: Tree, args: List[Tree]): ApplyDynamic + def unapply(applyDynamic: ApplyDynamic): Option[(Tree, List[Tree])] + } + + /** Super reference, qual = corresponding this reference + * A super reference C.super[M] is represented as Super(This(C), M). + */ + type Super >: Null <: TermTree + + /** A tag that preserves the identity of the `Super` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val SuperTag: ClassTag[Super] + + /** The constructor/deconstructor for `Super` instances. */ + val Super: SuperExtractor + + /** An extractor class to create and pattern match with syntax `Super(qual, mix)`. + * This AST node corresponds to the following Scala code: + * + * C.super[M] + * + * Which is represented as: + * + * Super(This(C), M) + * + * If `mix` is empty, it is tpnme.EMPTY. + * + * The symbol of a Super is the class _from_ which the super reference is made. + * For instance in C.super(...), it would be C. + */ + abstract class SuperExtractor { + def apply(qual: Tree, mix: TypeName): Super + def unapply(super_ : Super): Option[(Tree, TypeName)] + } + + /** Self reference */ + type This >: Null <: TermTree with SymTree + + /** A tag that preserves the identity of the `This` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ThisTag: ClassTag[This] + + /** The constructor/deconstructor for `This` instances. */ + val This: ThisExtractor + + /** An extractor class to create and pattern match with syntax `This(qual)`. + * This AST node corresponds to the following Scala code: + * + * qual.this + * + * The symbol of a This is the class to which the this refers. + * For instance in C.this, it would be C. + * + * If `mix` is empty, then ??? + */ + abstract class ThisExtractor { + def apply(qual: TypeName): This + def unapply(this_ : This): Option[TypeName] + } + + /** Designator <qualifier> . <name> */ + type Select >: Null <: RefTree + + /** A tag that preserves the identity of the `Select` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val SelectTag: ClassTag[Select] + + /** The constructor/deconstructor for `Select` instances. */ + val Select: SelectExtractor + + /** An extractor class to create and pattern match with syntax `Select(qual, name)`. + * This AST node corresponds to the following Scala code: + * + * qualifier.selector + */ + abstract class SelectExtractor { + def apply(qualifier: Tree, name: Name): Select + def unapply(select: Select): Option[(Tree, Name)] + } + + /** Identifier <name> */ + type Ident >: Null <: RefTree + + /** A tag that preserves the identity of the `Ident` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val IdentTag: ClassTag[Ident] + + /** The constructor/deconstructor for `Ident` instances. */ + val Ident: IdentExtractor + + /** An extractor class to create and pattern match with syntax `Ident(qual, name)`. + * This AST node corresponds to the following Scala code: + * + * name + * + * Type checker converts idents that refer to enclosing fields or methods to selects. + * For example, name ==> this.name + */ + abstract class IdentExtractor { + def apply(name: Name): Ident + def unapply(ident: Ident): Option[Name] + } + + /** Marks underlying reference to id as boxed. + * @pre id must refer to a captured variable + * A reference such marked will refer to the boxed entity, no dereferencing + * with `.elem` is done on it. + * This tree node can be emitted by macros such as reify that call referenceCapturedVariable. + * It is eliminated in LambdaLift, where the boxing conversion takes place. + */ + type ReferenceToBoxed >: Null <: TermTree + + /** A tag that preserves the identity of the `ReferenceToBoxed` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ReferenceToBoxedTag: ClassTag[ReferenceToBoxed] + + /** The constructor/deconstructor for `ReferenceToBoxed` instances. */ + val ReferenceToBoxed: ReferenceToBoxedExtractor + + /** An extractor class to create and pattern match with syntax `ReferenceToBoxed(ident)`. + * This AST node does not have direct correspondence to Scala code, + * and is emitted by macros to reference capture vars directly without going through `elem`. + * + * For example: + * + * var x = ... + * fun { x } + * + * Will emit: + * + * Ident(x) + * + * Which gets transformed to: + * + * Select(Ident(x), "elem") + * + * If `ReferenceToBoxed` were used instead of Ident, no transformation would be performed. + */ + abstract class ReferenceToBoxedExtractor { + def apply(ident: Ident): ReferenceToBoxed + def unapply(referenceToBoxed: ReferenceToBoxed): Option[Ident] + } + + /** Literal */ + type Literal >: Null <: TermTree + + /** A tag that preserves the identity of the `Literal` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val LiteralTag: ClassTag[Literal] + + /** The constructor/deconstructor for `Literal` instances. */ + val Literal: LiteralExtractor + + /** An extractor class to create and pattern match with syntax `Literal(value)`. + * This AST node corresponds to the following Scala code: + * + * value + */ + abstract class LiteralExtractor { + def apply(value: Constant): Literal + def unapply(literal: Literal): Option[Constant] + } + + /** A tree that has an annotation attached to it. Only used for annotated types and + * annotation ascriptions, annotations on definitions are stored in the Modifiers. + * Eliminated by typechecker (typedAnnotated), the annotations are then stored in + * an AnnotatedType. + */ + type Annotated >: Null <: AnyRef with Tree + + /** A tag that preserves the identity of the `Annotated` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val AnnotatedTag: ClassTag[Annotated] + + /** The constructor/deconstructor for `Annotated` instances. */ + val Annotated: AnnotatedExtractor + + /** An extractor class to create and pattern match with syntax `Annotated(annot, arg)`. + * This AST node corresponds to the following Scala code: + * + * arg @annot // for types + * arg: @annot // for exprs + */ + abstract class AnnotatedExtractor { + def apply(annot: Tree, arg: Tree): Annotated + def unapply(annotated: Annotated): Option[(Tree, Tree)] + } + + /** Singleton type, eliminated by RefCheck */ + type SingletonTypeTree >: Null <: TypTree + + /** A tag that preserves the identity of the `SingletonTypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val SingletonTypeTreeTag: ClassTag[SingletonTypeTree] + + /** The constructor/deconstructor for `SingletonTypeTree` instances. */ + val SingletonTypeTree: SingletonTypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `SingletonTypeTree(ref)`. + * This AST node corresponds to the following Scala code: + * + * ref.type + */ + abstract class SingletonTypeTreeExtractor { + def apply(ref: Tree): SingletonTypeTree + def unapply(singletonTypeTree: SingletonTypeTree): Option[Tree] + } + + /** Type selection <qualifier> # <name>, eliminated by RefCheck */ + // [Eugene++] don't see why we need it, when we have Select + type SelectFromTypeTree >: Null <: TypTree with RefTree + + /** A tag that preserves the identity of the `SelectFromTypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val SelectFromTypeTreeTag: ClassTag[SelectFromTypeTree] + + /** The constructor/deconstructor for `SelectFromTypeTree` instances. */ + val SelectFromTypeTree: SelectFromTypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `SelectFromTypeTree(qualifier, name)`. + * This AST node corresponds to the following Scala code: + * + * qualifier # selector + * + * Note: a path-dependent type p.T is expressed as p.type # T + */ + abstract class SelectFromTypeTreeExtractor { + def apply(qualifier: Tree, name: TypeName): SelectFromTypeTree + def unapply(selectFromTypeTree: SelectFromTypeTree): Option[(Tree, TypeName)] + } + + /** Intersection type <parent1> with ... with <parentN> { <decls> }, eliminated by RefCheck */ + type CompoundTypeTree >: Null <: TypTree + + /** A tag that preserves the identity of the `CompoundTypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val CompoundTypeTreeTag: ClassTag[CompoundTypeTree] + + /** The constructor/deconstructor for `CompoundTypeTree` instances. */ + val CompoundTypeTree: CompoundTypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `CompoundTypeTree(templ)`. + * This AST node corresponds to the following Scala code: + * + * parent1 with ... with parentN { refinement } + */ + abstract class CompoundTypeTreeExtractor { + def apply(templ: Template): CompoundTypeTree + def unapply(compoundTypeTree: CompoundTypeTree): Option[Template] + } + + /** Applied type <tpt> [ <args> ], eliminated by RefCheck */ + type AppliedTypeTree >: Null <: TypTree + + /** A tag that preserves the identity of the `AppliedTypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val AppliedTypeTreeTag: ClassTag[AppliedTypeTree] + + /** The constructor/deconstructor for `AppliedTypeTree` instances. */ + val AppliedTypeTree: AppliedTypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `AppliedTypeTree(tpt, args)`. + * This AST node corresponds to the following Scala code: + * + * tpt[args] + */ + abstract class AppliedTypeTreeExtractor { + def apply(tpt: Tree, args: List[Tree]): AppliedTypeTree + def unapply(appliedTypeTree: AppliedTypeTree): Option[(Tree, List[Tree])] + } + + /** Document me! */ + type TypeBoundsTree >: Null <: TypTree + + /** A tag that preserves the identity of the `TypeBoundsTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypeBoundsTreeTag: ClassTag[TypeBoundsTree] + + /** The constructor/deconstructor for `TypeBoundsTree` instances. */ + val TypeBoundsTree: TypeBoundsTreeExtractor + + /** An extractor class to create and pattern match with syntax `TypeBoundsTree(lo, hi)`. + * This AST node corresponds to the following Scala code: + * + * >: lo <: hi + */ + abstract class TypeBoundsTreeExtractor { + def apply(lo: Tree, hi: Tree): TypeBoundsTree + def unapply(typeBoundsTree: TypeBoundsTree): Option[(Tree, Tree)] + } + + /** Document me! */ + type ExistentialTypeTree >: Null <: TypTree + + /** A tag that preserves the identity of the `ExistentialTypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ExistentialTypeTreeTag: ClassTag[ExistentialTypeTree] + + /** The constructor/deconstructor for `ExistentialTypeTree` instances. */ + val ExistentialTypeTree: ExistentialTypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `ExistentialTypeTree(tpt, whereClauses)`. + * This AST node corresponds to the following Scala code: + * + * tpt forSome { whereClauses } + */ + abstract class ExistentialTypeTreeExtractor { + def apply(tpt: Tree, whereClauses: List[Tree]): ExistentialTypeTree + def unapply(existentialTypeTree: ExistentialTypeTree): Option[(Tree, List[Tree])] + } + + /** A synthetic tree holding an arbitrary type. Not to be confused with + * with TypTree, the trait for trees that are only used for type trees. + * TypeTree's are inserted in several places, but most notably in + * `RefCheck`, where the arbitrary type trees are all replaced by + * TypeTree's. */ + type TypeTree >: Null <: TypTree + + /** A tag that preserves the identity of the `TypeTree` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val TypeTreeTag: ClassTag[TypeTree] + + /** The constructor/deconstructor for `TypeTree` instances. */ + val TypeTree: TypeTreeExtractor + + /** An extractor class to create and pattern match with syntax `TypeTree()`. + * This AST node does not have direct correspondence to Scala code, + * and is emitted by everywhere when we want to wrap a `Type` in a `Tree`. + */ + abstract class TypeTreeExtractor { + def apply(): TypeTree + def unapply(typeTree: TypeTree): Boolean + } + + /** ... */ + type Modifiers >: Null <: ModifiersBase + + /** A tag that preserves the identity of the `Modifiers` abstract type from erasure. + * Can be used for pattern matching, instance tests, serialization and likes. + */ + implicit val ModifiersTag: ClassTag[Modifiers] + + /** ... */ + abstract class ModifiersBase { + def flags: FlagSet + def hasFlag(flags: FlagSet): Boolean + def hasAllFlags(flags: FlagSet): Boolean + def privateWithin: Name // default: EmptyTypeName + def annotations: List[Tree] // default: List() + def mapAnnotations(f: List[Tree] => List[Tree]): Modifiers = + Modifiers(flags, privateWithin, f(annotations)) + } + + val Modifiers: ModifiersCreator + + abstract class ModifiersCreator { + def apply(): Modifiers = Modifiers(NoFlags, EmptyTypeName, List()) + def apply(flags: FlagSet, privateWithin: Name, annotations: List[Tree]): Modifiers + } + + def Modifiers(flags: FlagSet, privateWithin: Name): Modifiers = Modifiers(flags, privateWithin, List()) + def Modifiers(flags: FlagSet): Modifiers = Modifiers(flags, EmptyTypeName) + + /** ... */ + lazy val NoMods = Modifiers() + + // [Eugene++] temporarily moved here until SI-5863 is fixed +// ---------------------- factories ---------------------------------------------- + + /** @param sym the class symbol + * @param impl the implementation template + */ + def ClassDef(sym: Symbol, impl: Template): ClassDef + + /** + * @param sym the class symbol + * @param impl the implementation template + */ + def ModuleDef(sym: Symbol, impl: Template): ModuleDef + + def ValDef(sym: Symbol, rhs: Tree): ValDef + + def ValDef(sym: Symbol): ValDef + + def DefDef(sym: Symbol, mods: Modifiers, vparamss: List[List[ValDef]], rhs: Tree): DefDef + + def DefDef(sym: Symbol, vparamss: List[List[ValDef]], rhs: Tree): DefDef + + def DefDef(sym: Symbol, mods: Modifiers, rhs: Tree): DefDef + + def DefDef(sym: Symbol, rhs: Tree): DefDef + + def DefDef(sym: Symbol, rhs: List[List[Symbol]] => Tree): DefDef + + /** A TypeDef node which defines given `sym` with given tight hand side `rhs`. */ + def TypeDef(sym: Symbol, rhs: Tree): TypeDef + + /** A TypeDef node which defines abstract type or type parameter for given `sym` */ + def TypeDef(sym: Symbol): TypeDef + + def LabelDef(sym: Symbol, params: List[Symbol], rhs: Tree): LabelDef + + /** Block factory that flattens directly nested blocks. + */ + def Block(stats: Tree*): Block + + /** casedef shorthand */ + def CaseDef(pat: Tree, body: Tree): CaseDef + + def Bind(sym: Symbol, body: Tree): Bind + + def Try(body: Tree, cases: (Tree, Tree)*): Try + + def Throw(tpe: Type, args: Tree*): Throw + + /** Factory method for object creation `new tpt(args_1)...(args_n)` + * A `New(t, as)` is expanded to: `(new t).<init>(as)` + */ + def New(tpt: Tree, argss: List[List[Tree]]): Tree + + /** 0-1 argument list new, based on a type. + */ + def New(tpe: Type, args: Tree*): Tree + + def New(sym: Symbol, args: Tree*): Tree + + def Apply(sym: Symbol, args: Tree*): Tree + + def ApplyConstructor(tpt: Tree, args: List[Tree]): Tree + + def Super(sym: Symbol, mix: TypeName): Tree + + def This(sym: Symbol): Tree + + def Select(qualifier: Tree, name: String): Select + + def Select(qualifier: Tree, sym: Symbol): Select + + def Ident(name: String): Ident + + def Ident(sym: Symbol): Ident + + def TypeTree(tp: Type): TypeTree +}
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