diff options
Diffstat (limited to 'lib/xixanta/src/object.rs')
| -rw-r--r-- | lib/xixanta/src/object.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/xixanta/src/object.rs b/lib/xixanta/src/object.rs index db7c51e..373d06c 100644 --- a/lib/xixanta/src/object.rs +++ b/lib/xixanta/src/object.rs @@ -48,6 +48,16 @@ impl Bundle { } } + /// Returns true of this bundle has a zero value on its `bytes` attribute + /// while also taking into account the size of the bundle. + pub fn is_zero(&self) -> bool { + match self.size { + 1 => self.bytes[0] == 0, + 2 => self.bytes[0] == 0 && self.bytes[1] == 0, + _ => self.bytes[0] == 0 && self.bytes[1] == 0 && self.bytes[2] == 0, + } + } + /// Create a bundle tailored for filling purposes. pub fn fill(value: u8) -> Self { Self { @@ -105,6 +115,11 @@ pub struct Object { /// Bundle representing the actual value. pub bundle: Bundle, + /// Node which marks the source of the computed `bundle` attribute. This is + /// only provided in cases like macro calls where at the crunching stage we + /// might need to fetch previous context for the current `bundle` value. + pub node: Option<PNode>, + /// The mapping index where the object was found. Note that this index /// doesn't mean much on the table, but it has to mean something by the /// caller. @@ -124,6 +139,7 @@ impl Object { pub fn new(mapping: usize, segment: usize, object_type: ObjectType) -> Self { Self { bundle: Bundle::default(), + node: None, mapping, segment, object_type, |