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Copyright (c) 2002-2024, LAMP/EPFL
Copyright (c) 2002-2024, LAMP/EPFL
scala.quoted.Varargs
Expression representation of literal sequence of expressions.
Varargs can be used to create the an expression args that will be used as varargs '{ f($args: _*) } or it can be used to extract all the arguments of the a varargs.
Attributes
Source
Varargs.scala
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Lifts this sequence of expressions into an expression of a sequence
Lifts this sequence of expressions into an expression of a sequence
Transforms a sequence of expression Seq(e1, e2, ...) where ei: Expr[T] to an expression equivalent to '{ Seq($e1, $e2, ...) } typed as an Expr[Seq[T]]
Usage: scala //{ def f(using Quotes) = { import quotes.reflect.* //} '{ List(${Varargs(List('{1}, '{2}, '{3}))}: _*) } // equivalent to '{ List(1, 2, 3) } //{ } //}
Attributes
Source
Varargs.scala
Matches a literal sequence of expressions and return a sequence of expressions.
Matches a literal sequence of expressions and return a sequence of expressions.
Usage: scala inline def sum(args: Int*): Int = ${ sumExpr('args) } def sumExpr(argsExpr: Expr[Seq[Int]])(using Quotes): Expr[Int] = argsExpr match case Varargs(argVarargs) => ??? // argVarargs: Seq[Expr[Int]]
Attributes
Source
Varargs.scala
