diff options
Diffstat (limited to 'tvix/eval/src/vm.rs')
| -rw-r--r-- | tvix/eval/src/vm.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tvix/eval/src/vm.rs b/tvix/eval/src/vm.rs index d6d3de154c..58ef67cb55 100644 --- a/tvix/eval/src/vm.rs +++ b/tvix/eval/src/vm.rs @@ -121,6 +121,7 @@ impl VM { OpCode::OpTrue => self.push(Value::Bool(true)), OpCode::OpFalse => self.push(Value::Bool(false)), OpCode::OpAttrs(count) => self.run_attrset(count)?, + OpCode::OpAttrPath(count) => self.run_attr_path(count)?, OpCode::OpList(count) => self.run_list(count)?, OpCode::OpInterpolate(count) => self.run_interpolate(count)?, } @@ -218,6 +219,23 @@ impl VM { Ok(()) } + // Construct runtime representation of an attr path (essentially + // just a list of strings). + // + // The difference to the list construction operation is that this + // forces all elements into strings, as attribute set keys are + // required to be strict in Nix. + fn run_attr_path(&mut self, count: usize) -> EvalResult<()> { + let mut path = vec![NixString(String::new()); count]; + + for idx in 0..count { + path[count - idx - 1] = self.pop().as_string()? + } + + self.push(Value::AttrPath(path)); + Ok(()) + } + // Construct runtime representation of a list. Because the list // items are on the stack in reverse order, the vector is created // initialised and elements are directly assigned to their |