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use crate::{
expression::Composite,
selection::{Selection, VectoriseError},
selection_functions::{evaluate_selection_function, SFError},
state::{EditorState, StateResult},
};
use thiserror::Error;
#[derive(Error, Debug)]
pub enum EvaluationError {
#[error("{0}")]
SelectionFunctionError(VectoriseError<SFError>),
#[error("Not yet implemented {0}")]
UnimplementedError(&'static str),
}
pub fn evaluate(
es: &EditorState,
comp: Composite,
left: Option<Selection>,
right: Option<Selection>,
) -> Result<StateResult, EvaluationError> {
match comp {
Composite::SelectionFunction {
func,
search_mod,
result_transform,
} => {
let sel =
evaluate_selection_function(es, func, search_mod, result_transform, left, right)
.map_err(EvaluationError::SelectionFunctionError)?;
Ok((sel, Vec::new()))
}
Composite::TextFunction { func, swapped } => {
Err(EvaluationError::UnimplementedError("text function"))
}
Composite::Hook { kind, left, right } => Err(EvaluationError::UnimplementedError("hook")),
Composite::Train2 { f, g } => Err(EvaluationError::UnimplementedError("train2")),
Composite::Train3 { f, g, h } => Err(EvaluationError::UnimplementedError("train3")),
Composite::Group { operations } => Err(EvaluationError::UnimplementedError("group")),
}
}
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