Typers

Abstract Value Members

abstract def inferImplicitValue(pt: Context.Type, silent: Boolean = true, withMacrosDisabled: Boolean = false, pos: Context.Position = enclosingPosition): Context.Tree

Infers an implicit value of the expected type pt in the macro callsite context.
Infers an implicit value of the expected type pt in the macro callsite context. Optional pos parameter provides a position that will be associated with the implicit search.
If silent is false, TypecheckException will be thrown in case of an inference error. If silent is true, the typecheck is silent and will return EmptyTree if an error occurs. Such errors don't vanish and can be inspected by turning on -Xlog-implicits. Unlike in typeCheck, silent is true by default.

Exceptions thrown
[[scala.reflect.macros.TypecheckException]]
abstract def inferImplicitView(tree: Context.Tree, from: Context.Type, to: Context.Type, silent: Boolean = true, withMacrosDisabled: Boolean = false, pos: Context.Position = enclosingPosition): Context.Tree

Infers an implicit view from the provided tree tree of the type from to the type to in the macro callsite context.
Infers an implicit view from the provided tree tree of the type from to the type to in the macro callsite context. Optional pos parameter provides a position that will be associated with the implicit search.
If silent is false, TypecheckException will be thrown in case of an inference error. If silent is true, the typecheck is silent and will return EmptyTree if an error occurs. Such errors don't vanish and can be inspected by turning on -Xlog-implicits. Unlike in typeCheck, silent is true by default.

Exceptions thrown
[[scala.reflect.macros.TypecheckException]]
abstract def openImplicits: List[(Context.Type, Context.Tree)]

Types along with corresponding trees for which implicit arguments are currently searched.
Types along with corresponding trees for which implicit arguments are currently searched. Can be useful to get information about an application with an implicit parameter that is materialized during current macro expansion.
Unlike enclosingImplicits, this is a def, which means that it gets recalculated on every invocation, so it might change depending on what is going on during macro expansion.
abstract def openMacros: List[Context]

Contexts that represent macros in-flight, including the current one.
Contexts that represent macros in-flight, including the current one. Very much like a stack trace, but for macros only. Can be useful for interoperating with other macros and for imposing compiler-friendly limits on macro expansion.
Is also priceless for emitting sane error messages for macros that are called by other macros on synthetic (i.e. position-less) trees. In that dire case navigate the openMacros stack, and it will most likely contain at least one macro with a position-ful macro application. See enclosingPosition for a default implementation of this logic.
Unlike enclosingMacros, this is a def, which means that it gets recalculated on every invocation, so it might change depending on what is going on during macro expansion.
abstract def resetAllAttrs(tree: Context.Tree): Context.Tree

Recursively resets symbols and types in a given tree.
Recursively resets symbols and types in a given tree.
Note that this does not revert the tree to its pre-typer shape. For more info, read up https://issues.scala-lang.org/browse/SI-5464.
abstract def resetLocalAttrs(tree: Context.Tree): Context.Tree

Recursively resets locally defined symbols and types in a given tree.
Recursively resets locally defined symbols and types in a given tree.
Note that this does not revert the tree to its pre-typer shape. For more info, read up https://issues.scala-lang.org/browse/SI-5464.
abstract def typeCheck(tree: Context.Tree, pt: Context.Type = WildcardType, silent: Boolean = false, withImplicitViewsDisabled: Boolean = false, withMacrosDisabled: Boolean = false): Context.Tree

Typechecks the provided tree against the expected type pt in the macro callsite context.
Typechecks the provided tree against the expected type pt in the macro callsite context.
If silent is false, TypecheckException will be thrown in case of a typecheck error. If silent is true, the typecheck is silent and will return EmptyTree if an error occurs. Such errors don't vanish and can be inspected by turning on -Ymacro-debug-verbose. Unlike in inferImplicitValue and inferImplicitView, silent is false by default.
Typechecking can be steered with the following optional parameters: withImplicitViewsDisabled recursively prohibits implicit views (though, implicit vals will still be looked up and filled in), default value is false withMacrosDisabled recursively prohibits macro expansions and macro-based implicits, default value is false

Exceptions thrown
[[scala.reflect.macros.TypecheckException]]

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def !=(arg0: Any): Boolean

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Any
final def ##(): Int

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AnyRef → Any
def +(other: String): String

Implicit information
This member is added by an implicit conversion from Typers to StringAdd[Typers] performed by method StringAdd in scala.Predef.
Definition Classes
StringAdd
def ->[B](y: B): (Typers, B)

Implicit information
This member is added by an implicit conversion from Typers to ArrowAssoc[Typers] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc
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@inline()
final def ==(arg0: AnyRef): Boolean

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final def ==(arg0: Any): Boolean

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final def asInstanceOf[T0]: T0

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def clone(): AnyRef

Attributes
protected[java.lang]
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@throws()
def ensuring(cond: (Typers) ⇒ Boolean, msg: ⇒ Any): Typers

Implicit information
This member is added by an implicit conversion from Typers to Ensuring[Typers] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: (Typers) ⇒ Boolean): Typers

Implicit information
This member is added by an implicit conversion from Typers to Ensuring[Typers] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean, msg: ⇒ Any): Typers

Implicit information
This member is added by an implicit conversion from Typers to Ensuring[Typers] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
def ensuring(cond: Boolean): Typers

Implicit information
This member is added by an implicit conversion from Typers to Ensuring[Typers] performed by method Ensuring in scala.Predef.
Definition Classes
Ensuring
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

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AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
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@throws()
def formatted(fmtstr: String): String

Returns string formatted according to given format string.
Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

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This member is added by an implicit conversion from Typers to StringFormat[Typers] performed by method StringFormat in scala.Predef.
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StringFormat
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@inline()
final def getClass(): Class[_]

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def hashCode(): Int

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final def isInstanceOf[T0]: Boolean

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final def ne(arg0: AnyRef): Boolean

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final def notify(): Unit

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final def notifyAll(): Unit

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final def synchronized[T0](arg0: ⇒ T0): T0

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def toString(): String

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final def wait(): Unit

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final def wait(arg0: Long, arg1: Int): Unit

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@throws()
final def wait(arg0: Long): Unit

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@throws()
def →[B](y: B): (Typers, B)

Implicit information
This member is added by an implicit conversion from Typers to ArrowAssoc[Typers] performed by method ArrowAssoc in scala.Predef.
Definition Classes
ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringAdd from Typers to StringAdd[Typers]

Inherited by implicit conversion StringFormat from Typers to StringFormat[Typers]

Inherited by implicit conversion Ensuring from Typers to Ensuring[Typers]

Inherited by implicit conversion ArrowAssoc from Typers to ArrowAssoc[Typers]

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trait Typers extends AnyRef

Abstract Value Members

abstract def inferImplicitValue(pt: Context.Type, silent: Boolean = true, withMacrosDisabled: Boolean = false, pos: Context.Position = enclosingPosition): Context.Tree

abstract def inferImplicitView(tree: Context.Tree, from: Context.Type, to: Context.Type, silent: Boolean = true, withMacrosDisabled: Boolean = false, pos: Context.Position = enclosingPosition): Context.Tree

abstract def openImplicits: List[(Context.Type, Context.Tree)]

abstract def openMacros: List[Context]

abstract def resetAllAttrs(tree: Context.Tree): Context.Tree

abstract def resetLocalAttrs(tree: Context.Tree): Context.Tree

abstract def typeCheck(tree: Context.Tree, pt: Context.Type = WildcardType, silent: Boolean = false, withImplicitViewsDisabled: Boolean = false, withMacrosDisabled: Boolean = false): Context.Tree

Concrete Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

def +(other: String): String

def ->[B](y: B): (Typers, B)

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def ensuring(cond: (Typers) ⇒ Boolean, msg: ⇒ Any): Typers

def ensuring(cond: (Typers) ⇒ Boolean): Typers

def ensuring(cond: Boolean, msg: ⇒ Any): Typers

def ensuring(cond: Boolean): Typers

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

def formatted(fmtstr: String): String

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

def →[B](y: B): (Typers, B)

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringAdd from Typers to StringAdd[Typers]

Inherited by implicit conversion StringFormat from Typers to StringFormat[Typers]

Inherited by implicit conversion Ensuring from Typers to Ensuring[Typers]

Inherited by implicit conversion ArrowAssoc from Typers to ArrowAssoc[Typers]

Ungrouped