Move reading and writing of tokens into a separate package to prepare for other input and output formats

1 files changed, 12 insertions, 0 deletions

diff --git a/walk/atom.go b/walk/atom.go
index 13ad2ff..dfe5fe4 100644
--- a/walk/atom.go
+++ b/walk/atom.go
@@ -43,12 +43,24 @@ func NewAtomNumber(v float64) Atom {
 		data: math.Float64bits(v),
 	}
 }
+func (v Atom) Number() float64 {
+	if v.Typ != AtomNumber {
+		panic("Tried to use non-number as number")
+	}
+	return math.Float64frombits(v.data)
+}
 func NewAtomTerminal(v ValueTerminal) Atom {
 	return Atom {
 		Typ: AtomTerminal,
 		data: uint64(v),
 	}
 }
+func (v Atom) Terminal() ValueTerminal {
+	if v.Typ != AtomTerminal {
+		panic("Tried to use non-terminal as terminal")
+	}
+	return ValueTerminal(v.data)
+}
 func NewAtomStringTerminal() Atom {
 	return Atom {
 		Typ: AtomStringTerminal,