ValDef

Create a value definition val x, var x or lazy val x with the signature defined in the symbol.

The rhs should return be Some containing the implementation of the method. Returns None the method has no implementation. Any definition directly inside the implementation should have symbol as owner.

Use Symbol.asQuotes to create the rhs using quoted code.

See also: Tree.changeOwner

Creates a block { val <name> = <rhs: Term>; <body(x): Term> }

Usage:

ValDef.let(owner, "x", rhs1) { x =>
  ValDef.let(x.symbol.owner, "y", rhs2) { y =>
    // use `x` and `y`
  }
}

Creates a block { val x1 = <terms(0): Term>; ...; val xn = <terms(n-1): Term>; <body(List(x1, ..., xn)): Term> }

Usage:

ValDef.let(owner, rhsList) { xs =>
   ...
}

Creates a block { val x = <rhs: Term>; <body(x): Term> }

Usage:

ValDef.let(owner, rhs1) { x =>
  ValDef.let(owner, rhs2) { y =>
    // use `x` and `y`
  }
}