scala3-compiler-bootstrapped
DocsAPI
Generated with
Copyright (c) 2002-2023, LAMP/EPFL
Copyright (c) 2002-2023, LAMP/EPFL
scala3-compiler-bootstrapped/org.scalajs.ir/Trees

Trees

org.scalajs.ir.Trees
object Trees

Attributes

Graph
Supertypes
class Object
trait Matchable
class Any
Self type
Trees.type

Members list

Type members

Classlikes

sealed abstract class AnyFieldDef extends MemberDef

Attributes

Supertypes
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Known subtypes
class FieldDef
class JSFieldDef
sealed case class Apply(flags: ApplyFlags, receiver: Tree, method: MethodIdent, args: List[Tree])(tpe: Type)(implicit pos: Position) extends Tree

Apply an instance method with dynamic dispatch (the default).

Apply an instance method with dynamic dispatch (the default).

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ApplyDynamicImport(flags: ApplyFlags, className: ClassName, method: MethodIdent, args: List[Tree])(implicit pos: Position) extends Tree

Apply a static method via dynamic import.

Apply a static method via dynamic import.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
final class ApplyFlags extends AnyVal

Attributes

Companion
object
Supertypes
class AnyVal
trait Matchable
class Any
object ApplyFlags

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
ApplyFlags.type
sealed case class ApplyStatic(flags: ApplyFlags, className: ClassName, method: MethodIdent, args: List[Tree])(tpe: Type)(implicit pos: Position) extends Tree

Apply a static method.

Apply a static method.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ApplyStatically(flags: ApplyFlags, receiver: Tree, className: ClassName, method: MethodIdent, args: List[Tree])(tpe: Type)(implicit pos: Position) extends Tree

Apply an instance method with static dispatch (e.g., super calls).

Apply an instance method with static dispatch (e.g., super calls).

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ArrayLength(array: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ArraySelect(array: Tree, index: Tree)(tpe: Type)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ArrayValue(typeRef: ArrayTypeRef, elems: List[Tree])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class AsInstanceOf(expr: Tree, tpe: Type)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Assign(lhs: AssignLhs, rhs: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed trait AssignLhs extends Tree

Attributes

Supertypes
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
Known subtypes
class ArraySelect
class JSGlobalRef
class JSSelect
class RecordSelect
class Select
class SelectStatic
class VarRef
Show all
sealed case class BinaryOp(op: Code, lhs: Tree, rhs: Tree)(implicit pos: Position) extends Tree

Binary operation (always preserves pureness).

Binary operation (always preserves pureness).

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object BinaryOp

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
BinaryOp.type
sealed class Block extends Tree

Attributes

Companion
object
Supertypes
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object Block

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
Block.type
sealed case class BooleanLiteral(value: Boolean)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ByteLiteral(value: Byte)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class CharLiteral(value: Char)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
final class ClassDef(val name: ClassIdent, val originalName: OriginalName, val kind: ClassKind, val jsClassCaptures: Option[List[ParamDef]], val superClass: Option[ClassIdent], val interfaces: List[ClassIdent], val jsSuperClass: Option[Tree], val jsNativeLoadSpec: Option[JSNativeLoadSpec], val memberDefs: List[MemberDef], val topLevelExportDefs: List[TopLevelExportDef])(val optimizerHints: OptimizerHints)(implicit val pos: Position) extends IRNode

Attributes

Companion
object
Supertypes
class IRNode
class Object
trait Matchable
class Any
object ClassDef

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
ClassDef.type
sealed case class ClassIdent(name: ClassName)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ClassOf(typeRef: TypeRef)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Clone(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Closure(arrow: Boolean, captureParams: List[ParamDef], params: List[ParamDef], restParam: Option[ParamDef], body: Tree, captureValues: List[Tree])(implicit pos: Position) extends Tree

Closure with explicit captures.

Closure with explicit captures.

Value parameters

arrow

If true, the closure is an Arrow Function (=>), which does not have an this parameter, and cannot be constructed (called with new). If false, it is a regular Function (function).

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class CreateJSClass(className: ClassName, captureValues: List[Tree])(implicit pos: Position) extends Tree

Creates a JavaScript class value.

Creates a JavaScript class value.

Value parameters

captureValues

Actual values for the captured parameters (in the ClassDef's jsClassCaptures.get)

className

Reference to the ClassDef for the class definition, which must have jsClassCaptures.nonEmpty

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Debugger()(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class DoWhile(body: Tree, cond: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class DoubleLiteral(value: Double)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class FieldDef(flags: MemberFlags, name: FieldIdent, originalName: OriginalName, ftpe: Type)(implicit pos: Position) extends AnyFieldDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class AnyFieldDef
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class FieldIdent(name: FieldName)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class FloatLiteral(value: Float)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ForIn(obj: Tree, keyVar: LocalIdent, keyVarOriginalName: OriginalName, body: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class GetClass(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed abstract class IRNode

Base class for all nodes in the IR.

Base class for all nodes in the IR.

Usually, one of the direct subclasses of IRNode should be used instead.

Attributes

Supertypes
class Object
trait Matchable
class Any
Known subtypes
class ClassDef
class ClassIdent
class FieldIdent
class JSSpread
class LabelIdent
class LocalIdent
class MemberDef
class AnyFieldDef
class FieldDef
class JSFieldDef
class JSMethodDef
class MethodDef
class MethodIdent
class ParamDef
class Tree
class Apply
class ApplyStatic
class ArrayLength
class ArrayValue
class AsInstanceOf
class Assign
trait AssignLhs
class ArraySelect
class JSGlobalRef
class JSSelect
class RecordSelect
class Select
class SelectStatic
class VarRef
class BinaryOp
class Block
class Clone
class Closure
class Debugger
class DoWhile
class ForIn
class GetClass
class If
class IsInstanceOf
class JSBinaryOp
class JSDelete
class JSImportCall
class JSImportMeta
class JSNew
class JSNewTarget
class JSUnaryOp
class Labeled
trait Literal
class ByteLiteral
class CharLiteral
class ClassOf
class FloatLiteral
class LongLiteral
class IntLiteral
class Null
class ShortLiteral
class Undefined
class LoadJSModule
class LoadModule
class Match
class New
class NewArray
class RecordValue
class Return
class Skip
class StoreModule
class This
class Throw
class Transient
class TryCatch
class TryFinally
class UnaryOp
class VarDef
class While
Show all
sealed case class IdentityHashCode(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class If(cond: Tree, thenp: Tree, elsep: Tree)(tpe: Type)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class IntLiteral(value: Int)(implicit pos: Position) extends MatchableLiteral

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class IsInstanceOf(expr: Tree, testType: Type)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSArrayConstr(items: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSBinaryOp(op: Code, lhs: Tree, rhs: Tree)(implicit pos: Position) extends Tree

Binary operation (always preserves pureness).

Binary operation (always preserves pureness).

Operations which do not preserve pureness are not allowed in this tree. These are notably +=, -=, *=, /= and %=

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object JSBinaryOp

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
JSBinaryOp.type
sealed case class JSConstructorBody(beforeSuper: List[Tree], superCall: JSSuperConstructorCall, afterSuper: List[Tree])(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSConstructorDef(flags: MemberFlags, args: List[ParamDef], restParam: Option[ParamDef], body: JSConstructorBody)(optimizerHints: OptimizerHints, hash: Option[TreeHash])(implicit pos: Position) extends MemberDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSDelete(qualifier: Tree, item: Tree)(implicit pos: Position) extends Tree

delete qualifier[item]

delete qualifier[item]

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSFieldDef(flags: MemberFlags, name: Tree, ftpe: Type)(implicit pos: Position) extends AnyFieldDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class AnyFieldDef
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSFunctionApply(fun: Tree, args: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSGlobalRef(name: String)(implicit pos: Position) extends AssignLhs

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object JSGlobalRef

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
sealed case class JSImportCall(arg: Tree)(implicit pos: Position) extends Tree

JavaScript dynamic import of the form import(arg).

JavaScript dynamic import of the form import(arg).

This form is its own node, rather than using something like

JSFunctionApply(JSImport())

because import is not a first-class term in JavaScript. ImportCall is a dedicated syntactic form that cannot be dissociated.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSImportMeta()(implicit pos: Position) extends Tree

JavaScript meta-property import.meta.

JavaScript meta-property import.meta.

This form is its own node, rather than using something like

JSSelect(JSImport(), StringLiteral("meta"))

because import is not a first-class term in JavaScript. import.meta is a dedicated syntactic form that cannot be dissociated.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSLinkingInfo()(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSMethodApply(receiver: Tree, method: Tree, args: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSMethodDef(flags: MemberFlags, name: Tree, args: List[ParamDef], restParam: Option[ParamDef], body: Tree)(optimizerHints: OptimizerHints, hash: Option[TreeHash])(implicit pos: Position) extends JSMethodPropDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed abstract class JSMethodPropDef extends MemberDef

Attributes

Supertypes
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Known subtypes
class JSMethodDef
sealed abstract class JSNativeLoadSpec

Loading specification for a native JS class or object.

Loading specification for a native JS class or object.

Attributes

Companion
object
Supertypes
class Object
trait Matchable
class Any
Known subtypes
class Global
class Import
object JSNativeLoadSpec

Attributes

Companion
class
Supertypes
trait Sum
trait Mirror
class Object
trait Matchable
class Any
Self type
sealed case class JSNativeMemberDef(flags: MemberFlags, name: MethodIdent, jsNativeLoadSpec: JSNativeLoadSpec)(implicit pos: Position) extends MemberDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSNew(ctor: Tree, args: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSNewTarget()(implicit pos: Position) extends Tree

JavaScript meta-property new.target.

JavaScript meta-property new.target.

This form is its own node, rather than using something like

JSSelect(JSNew(), StringLiteral("target"))

because new is not a first-class term in JavaScript. new.target is a dedicated syntactic form that cannot be dissociated.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSObjectConstr(fields: List[(Tree, Tree)])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSPrivateSelect(qualifier: Tree, className: ClassName, field: FieldIdent)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSPropertyDef(flags: MemberFlags, name: Tree, getterBody: Option[Tree], setterArgAndBody: Option[(ParamDef, Tree)])(implicit pos: Position) extends JSMethodPropDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSSelect(qualifier: Tree, item: Tree)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSSpread(items: Tree)(implicit pos: Position) extends IRNode, TreeOrJSSpread

...items, the "spread" operator of ECMAScript 6.

...items, the "spread" operator of ECMAScript 6.

Value parameters

items

An Array whose items will be spread (not an arbitrary iterable)

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSSuperConstructorCall(args: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Super constructor call in the constructor of a non-native JS class.

Super constructor call in the constructor of a non-native JS class.

Exactly one such node must appear in the constructor of a non-native JS class, at the top-level (possibly as a direct child of a top-level Block). Any other use of this node is invalid.

Statements before this node, as well as the args, cannot contain any This() node. Statements after this node can use This().

After the execution of this node, it is guaranteed that all fields declared in the current class have been created and initialized. Up to that point, accessing any field declared in this class (e.g., through an overridden method called from the super constructor) is undefined behavior.

All in all, the shape of a constructor is therefore:

{
  statementsNotUsingThis();
  JSSuperConstructorCall(...argsNotUsingThis);
  statementsThatMayUseThis()
}

which currently translates to something of the following shape:

{
  statementsNotUsingThis();
  super(...argsNotUsingThis);
  this.privateField1 = 0;
  this["publicField2"] = false;
  statementsThatMayUseThis()
}

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSSuperMethodCall(superClass: Tree, receiver: Tree, method: Tree, args: List[TreeOrJSSpread])(implicit pos: Position) extends Tree

Calls a method inherited from the given superClass on receiver.

Calls a method inherited from the given superClass on receiver.

Intuitively, this corresponds to

superClass.prototype[method].call(receiver, ...args)

but retains more structure at the IR level than using an explicit encoding of the above expression.

Given the non-native JS classes

class Bar extends js.Object
class Foo extends Bar

The node

JSSuperBrackerCall(LoadJSConstructor(ClassName("Bar")), receiver, method, args)

which is printed as

super(constructorOf[Bar])::receiver[method](...args)

has the following semantics:

Bar.prototype[method].call(receiver, ...args)

If this happens to be located in an instance method of Foo, and receiver happens to be This(), this is equivalent to the ES6 statement

super[method](...args)

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSSuperSelect(superClass: Tree, receiver: Tree, item: Tree)(implicit pos: Position) extends AssignLhs

Selects a property inherited from the given superClass on receiver.

Selects a property inherited from the given superClass on receiver.

Given the non-native JS classes

class Bar extends js.Object
class Foo extends Bar

The node

JSSuperBrackerSelect(LoadJSConstructor(ClassName("Bar")), qualifier, item)

which is printed as

super(constructorOf[Bar])::qualifier[item]

has the semantics of an ES6 super reference

super[item]

as if it were in an instance method of Foo with qualifier as the this value.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSTypeOfGlobalRef(globalRef: JSGlobalRef)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class JSUnaryOp(op: Code, lhs: Tree)(implicit pos: Position) extends Tree

Unary operation (always preserves pureness).

Unary operation (always preserves pureness).

Operations which do not preserve pureness are not allowed in this tree. These are notably ++ and --

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object JSUnaryOp

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
JSUnaryOp.type
sealed case class LabelIdent(name: LabelName)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Labeled(label: LabelIdent, tpe: Type, body: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed trait Literal extends Tree

Marker for literals. Literals are always pure.

Marker for literals. Literals are always pure.

Attributes

Supertypes
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
Known subtypes
class ByteLiteral
class CharLiteral
class ClassOf
class FloatLiteral
class LongLiteral
class IntLiteral
class Null
class ShortLiteral
class Undefined
Show all
sealed case class LoadJSConstructor(className: ClassName)(implicit pos: Position) extends Tree

Loads the constructor of a JS class (native or not).

Loads the constructor of a JS class (native or not).

className must represent a non-trait JS class (native or not).

This is used typically to instantiate a JS class, and most importantly if it is a non-native JS class. Given the class

class Foo(x: Int) extends js.Object

The instantiation new Foo(1) would be represented as

JSNew(LoadJSConstructor(ClassName("Foo")), List(IntLiteral(1)))

This node is also useful to encode o.isInstanceOf[Foo]:

JSBinaryOp(instanceof, o, LoadJSConstructor(ClassName("Foo")))

If Foo is non-native, the presence of this node makes it instantiable, and therefore reachable.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class LoadJSModule(className: ClassName)(implicit pos: Position) extends Tree

Like LoadModule but for a JS module class.

Like LoadModule but for a JS module class.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class LoadModule(className: ClassName)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class LocalIdent(name: LocalName)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class LongLiteral(value: Long)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Match(selector: Tree, cases: List[(List[MatchableLiteral], Tree)], default: Tree)(tpe: Type)(implicit pos: Position) extends Tree

A break-free switch (without fallthrough behavior).

A break-free switch (without fallthrough behavior).

Unlike a JavaScript switch, it can be used in expression position. It supports alternatives explicitly (hence the List[MatchableLiteral] in cases), whereas in a switch one would use the fallthrough behavior to implement alternatives. (This is not a pattern matching construct like in Scala.)

The selector must be either an int (IntType) or a java.lang.String. The cases can be any MatchableLiteral, even if they do not make sense for the type of the selecter (they simply will never match).

Because +0.0 === -0.0 in JavaScript, and because those semantics are used in a JS switch, we have to prevent the selector from ever being -0.0. Otherwise, it would be matched by a case IntLiteral(0). At the same time, we must allow at least int and java.lang.String to support all switchable matches from Scala. Since the latter two have no common super type that does not allow -0.0, we really have to special-case those two types.

This is also why we restrict MatchableLiterals to IntLiteral, StringLiteral and Null. Allowing more cases would only make IR checking more complicated, without bringing any added value.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed trait MatchableLiteral extends Literal

Marker for literals that can be used in a Match case.

Marker for literals that can be used in a Match case.

Matchable literals are:

  • IntLiteral
  • StringLiteral
  • Null

See Match for the rationale about that specific set.

Attributes

Supertypes
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
Known subtypes
class IntLiteral
class Null
sealed abstract class MemberDef extends IRNode

Any member of a ClassDef.

Any member of a ClassDef.

Partitioned into AnyFieldDef, MethodDef, JSConstructorDef and JSMethodPropDef.

Attributes

Supertypes
class IRNode
class Object
trait Matchable
class Any
Known subtypes
class AnyFieldDef
class FieldDef
class JSFieldDef
class JSMethodDef
class MethodDef
Show all
final class MemberFlags extends AnyVal

Attributes

Companion
object
Supertypes
class AnyVal
trait Matchable
class Any
object MemberFlags

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
final class MemberNamespace extends AnyVal

Attributes

Companion
object
Supertypes
class AnyVal
trait Matchable
class Any
object MemberNamespace

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
sealed case class MethodDef(flags: MemberFlags, name: MethodIdent, originalName: OriginalName, args: List[ParamDef], resultType: Type, body: Option[Tree])(optimizerHints: OptimizerHints, hash: Option[TreeHash])(implicit pos: Position) extends MemberDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class MemberDef
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class MethodIdent(name: MethodName)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class New(className: ClassName, ctor: MethodIdent, args: List[Tree])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class NewArray(typeRef: ArrayTypeRef, lengths: List[Tree])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Null()(implicit pos: Position) extends MatchableLiteral

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
final class OptimizerHints extends AnyVal

Attributes

Companion
object
Supertypes
class AnyVal
trait Matchable
class Any
object OptimizerHints

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
sealed case class ParamDef(name: LocalIdent, originalName: OriginalName, ptpe: Type, mutable: Boolean)(implicit pos: Position) extends IRNode

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class RecordSelect(record: Tree, field: FieldIdent)(tpe: Type)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class RecordValue(tpe: RecordType, elems: List[Tree])(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Return(expr: Tree, label: LabelIdent)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Select(qualifier: Tree, className: ClassName, field: FieldIdent)(tpe: Type)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class SelectJSNativeMember(className: ClassName, member: MethodIdent)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class SelectStatic(className: ClassName, field: FieldIdent)(tpe: Type)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class ShortLiteral(value: Short)(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Skip()(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class StoreModule(className: ClassName, value: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class StringLiteral(value: String)(implicit pos: Position) extends MatchableLiteral

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class This()(tpe: Type)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Throw(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed abstract class TopLevelExportDef extends IRNode

Attributes

Companion
object
Supertypes
class IRNode
class Object
trait Matchable
class Any
Known subtypes
object TopLevelExportDef

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
sealed case class TopLevelFieldExportDef(moduleID: String, exportName: String, field: FieldIdent)(implicit pos: Position) extends TopLevelExportDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class TopLevelJSClassExportDef(moduleID: String, exportName: String)(implicit pos: Position) extends TopLevelExportDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class TopLevelMethodExportDef(moduleID: String, methodDef: JSMethodDef)(implicit pos: Position) extends TopLevelExportDef

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class TopLevelModuleExportDef(moduleID: String, exportName: String)(implicit pos: Position) extends TopLevelExportDef

Export for a top-level object.

Export for a top-level object.

This exports the singleton instance of the containing module class. The instance is initialized during ES module instantiation.

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class Transient(value: Value)(implicit pos: Position) extends Tree

A transient node for custom purposes.

A transient node for custom purposes.

A transient node is never a valid input to the Serializers nor to the linker, but can be used in a transient state for internal purposes.

Value parameters

value

The payload of the transient node, without any specified meaning.

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object Transient

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
Transient.type
sealed abstract class Tree extends IRNode, TreeOrJSSpread

Node for a statement or expression in the IR.

Node for a statement or expression in the IR.

Attributes

Supertypes
class IRNode
class Object
trait Matchable
class Any
Known subtypes
class Apply
class ApplyStatic
class ArrayLength
class ArrayValue
class AsInstanceOf
class Assign
trait AssignLhs
class ArraySelect
class JSGlobalRef
class JSSelect
class RecordSelect
class Select
class SelectStatic
class VarRef
class BinaryOp
class Block
class Clone
class Closure
class Debugger
class DoWhile
class ForIn
class GetClass
class If
class IsInstanceOf
class JSBinaryOp
class JSDelete
class JSImportCall
class JSImportMeta
class JSNew
class JSNewTarget
class JSUnaryOp
class Labeled
trait Literal
class ByteLiteral
class CharLiteral
class ClassOf
class FloatLiteral
class LongLiteral
class IntLiteral
class Null
class ShortLiteral
class Undefined
class LoadJSModule
class LoadModule
class Match
class New
class NewArray
class RecordValue
class Return
class Skip
class StoreModule
class This
class Throw
class Transient
class TryCatch
class TryFinally
class UnaryOp
class VarDef
class While
Show all
final class TreeHash(val hash: Array[Byte])

A hash of a tree (usually a MethodDef).

A hash of a tree (usually a MethodDef).

Contains a SHA-1 hash.

Attributes

Supertypes
class Object
trait Matchable
class Any
sealed trait TreeOrJSSpread extends IRNode

Either a Tree or a JSSpread.

Either a Tree or a JSSpread.

This is the type of actual arguments to JS applications.

Attributes

Supertypes
class IRNode
class Object
trait Matchable
class Any
Known subtypes
class JSSpread
class Tree
class Apply
class ApplyStatic
class ArrayLength
class ArrayValue
class AsInstanceOf
class Assign
trait AssignLhs
class ArraySelect
class JSGlobalRef
class JSSelect
class RecordSelect
class Select
class SelectStatic
class VarRef
class BinaryOp
class Block
class Clone
class Closure
class Debugger
class DoWhile
class ForIn
class GetClass
class If
class IsInstanceOf
class JSBinaryOp
class JSDelete
class JSImportCall
class JSImportMeta
class JSNew
class JSNewTarget
class JSUnaryOp
class Labeled
trait Literal
class ByteLiteral
class CharLiteral
class ClassOf
class FloatLiteral
class LongLiteral
class IntLiteral
class Null
class ShortLiteral
class Undefined
class LoadJSModule
class LoadModule
class Match
class New
class NewArray
class RecordValue
class Return
class Skip
class StoreModule
class This
class Throw
class Transient
class TryCatch
class TryFinally
class UnaryOp
class VarDef
class While
Show all
sealed case class TryCatch(block: Tree, errVar: LocalIdent, errVarOriginalName: OriginalName, handler: Tree)(tpe: Type)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class TryFinally(block: Tree, finalizer: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class UnaryOp(op: Code, lhs: Tree)(implicit pos: Position) extends Tree

Unary operation (always preserves pureness).

Unary operation (always preserves pureness).

Attributes

Companion
object
Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
object UnaryOp

Attributes

Companion
class
Supertypes
class Object
trait Matchable
class Any
Self type
UnaryOp.type
sealed case class Undefined()(implicit pos: Position) extends Literal

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait Literal
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class UnwrapFromThrowable(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class VarDef(name: LocalIdent, originalName: OriginalName, vtpe: Type, mutable: Boolean, rhs: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class VarRef(ident: LocalIdent)(tpe: Type)(implicit pos: Position) extends AssignLhs

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
trait AssignLhs
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class While(cond: Tree, body: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all
sealed case class WrapAsThrowable(expr: Tree)(implicit pos: Position) extends Tree

Attributes

Supertypes
trait Serializable
trait Product
trait Equals
class Tree
class IRNode
class Object
trait Matchable
class Any
Show all

Value members

Concrete methods

def isJSIdentifierName(name: String): Boolean

Tests whether the given name is a valid JavaScript identifier name.

Tests whether the given name is a valid JavaScript identifier name.

This test does not exclude keywords.

Attributes

Generated with
Copyright (c) 2002-2023, LAMP/EPFL
Copyright (c) 2002-2023, LAMP/EPFL