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use std::collections::{HashMap, HashSet};
pub struct TheoryContext {
name: String,
stages: HashMap<String, StageContext>,
}
pub struct StageContext {
domain: RecordContext,
codomain: RecordContext,
}
pub enum TheoryMorphismKind {
Term,
Dependency,
}
pub type TheoryType = String;
pub type TheoryMorphism = String;
pub struct CheckedPath {
domain_type: TheoryType,
codomain_type: TheoryType,
path: Vec<TheoryMorphism>,
kind: TheoryMorphismKind,
}
pub struct RecordContext {
/// The types at issue.
types: HashSet<TheoryType>,
/// The known terms/dependencies.
terms: Vec<CheckedPath>,
/// Equalities between parallel composites indexed by their paired (domain,
/// codomain) types.
equality: HashMap<(TheoryType, TheoryType), (CheckedPath, CheckedPath)>,
/// TODO
bindings: HashMap<String, CheckedStageReference>,
}
pub struct CheckedStageReference {
stage: String,
via: Box<RecordContext>,
}
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