rishi/scryer-prolog
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update token type

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This commit is contained in:
Mark Thom
2018-01-12 22:26:57 -07:00
parent b5844eaf19
commit 20972f18c2
4 changed files with 14 additions and 23 deletions
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14
src/prolog/ast.rs
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@@ -862,17 +862,7 @@ impl Addr {
_ => false
}
}
pub fn as_ref(&self) -> Option<Ref> {
match self {
&Addr::HeapCell(hc) => Some(Ref::HeapCell(hc)),
&Addr::StackCell(fr, sc) => Some(Ref::StackCell(fr, sc)),
&Addr::Lis(hc) => Some(Ref::HeapCell(hc)),
&Addr::Str(hc) => Some(Ref::HeapCell(hc)),
_ => None
}
}
pub fn as_var(&self) -> Option<Ref> {
match self {
&Addr::HeapCell(hc) => Some(Ref::HeapCell(hc)),
@@ -892,7 +882,7 @@ impl Addr {
impl From<Ref> for Addr {
fn from(r: Ref) -> Self {
match r {
Ref::HeapCell(hc) => Addr::HeapCell(hc),
Ref::HeapCell(hc) => Addr::HeapCell(hc),
Ref::StackCell(fr, sc) => Addr::StackCell(fr, sc)
}
}