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"full" code for example from Martin's talk on implicits
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class Table(var rows: List[Row] = Nil) { | |
def add(r: Row) = { rows = r :: rows } | |
} | |
class Row(var cells: List[Cell] = Nil) { | |
def add(c: Cell) = { cells = c :: cells } | |
} | |
case class Cell(content: String) | |
object test { | |
def table(init: implicit Table => Unit) = { | |
implicit val t = new Table() | |
init | |
t | |
} | |
def row(init: implicit Row => Unit)(implicit t: Table) = { | |
implicit val r = new Row() | |
init | |
t.add(r) | |
} | |
def cell(str: String)(implicit r: Row) = | |
r.add(Cell(str)) | |
val doc = table { | |
row { | |
cell("test") | |
} | |
table { | |
row { | |
cell("test2") | |
} | |
} | |
} | |
} |
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// result of | |
// dotc -Xprint:posttyper examples/scoping.scala | |
// ... | |
val doc: Table = | |
test.table( | |
{ | |
def $anonfun(implicit evidence$1: Table): Unit = | |
{ | |
test.row( | |
{ | |
def $anonfun(implicit evidence$2: Row): Unit = | |
{ | |
test.cell("test")(evidence$2) | |
} | |
closure($anonfun) | |
} | |
)(evidence$1) | |
{ | |
test.table( | |
{ | |
def $anonfun(implicit evidence$3: Table): Unit = | |
{ | |
test.row( | |
{ | |
def $anonfun(implicit evidence$4: Row): Unit = | |
{ | |
test.cell("test2")(evidence$4) | |
} | |
closure($anonfun) | |
} | |
)(evidence$3) | |
} | |
closure($anonfun) | |
} | |
) | |
() | |
} | |
} | |
closure($anonfun) | |
} | |
) |
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