157 lines
2.1 KiB
Rust
157 lines
2.1 KiB
Rust
// Operators
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pub enum BinaryOperator
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{
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Plus,
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Minus,
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Multiplication,
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Division,
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Modulo,
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Power,
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}
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pub enum ComparisonOperator
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{
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GreaterThan,
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LessThan,
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LessEqual,
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GreaterEqual,
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NotEqual,
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Equal,
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}
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pub enum UnaryOperator
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{
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AbsoluteValue,
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Minus,
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}
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// Primitives
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pub struct FunctionDeclaration
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{
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pub name: String,
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pub arity: usize,
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}
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pub struct PredicateDeclaration
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{
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pub name: String,
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pub arity: usize,
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}
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pub struct VariableDeclaration
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{
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pub name: String,
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}
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// Terms
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pub struct BinaryOperation
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{
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pub operator: BinaryOperator,
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pub left: Box<Term>,
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pub right: Box<Term>,
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}
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pub struct Function
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{
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pub declaration: std::rc::Rc<FunctionDeclaration>,
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pub arguments: Vec<Box<Term>>,
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}
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pub struct Interval
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{
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pub from: Box<Term>,
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pub to: Box<Term>,
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}
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pub enum SpecialInteger
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{
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Infimum,
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Supremum,
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}
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pub struct UnaryOperation
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{
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pub operator: UnaryOperator,
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pub argument: Box<Term>,
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}
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pub struct Variable
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{
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pub declaration: std::rc::Rc<VariableDeclaration>,
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}
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// Formulas
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pub struct Biconditional
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{
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pub left: Box<Formula>,
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pub right: Box<Formula>,
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}
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pub struct Comparison
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{
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pub operator: ComparisonOperator,
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pub left: Box<Term>,
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pub right: Box<Term>,
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}
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pub struct Exists
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{
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pub parameters: Vec<std::rc::Rc<VariableDeclaration>>,
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pub argument: Box<Formula>,
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}
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pub struct ForAll
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{
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pub parameters: Vec<std::rc::Rc<VariableDeclaration>>,
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pub argument: Box<Formula>,
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}
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pub struct Implies
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{
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pub left: Box<Formula>,
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pub right: Box<Formula>,
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}
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pub struct Predicate
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{
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pub declaration: std::rc::Rc<PredicateDeclaration>,
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pub arguments: Vec<Box<Term>>,
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}
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// Variants
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pub enum Term
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{
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BinaryOperation(BinaryOperation),
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Boolean(bool),
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Function(Function),
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Integer(i32),
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Interval(Interval),
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SpecialInteger(SpecialInteger),
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String(String),
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UnaryOperation(UnaryOperation),
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Variable(Variable),
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}
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pub type Terms = Vec<Box<Term>>;
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pub enum Formula
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{
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And(Formulas),
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Biconditional(Biconditional),
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Boolean(bool),
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Comparison(Comparison),
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Exists(Exists),
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ForAll(ForAll),
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Implies(Implies),
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Not(Box<Formula>),
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Or(Formulas),
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Predicate(Predicate),
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}
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pub type Formulas = Vec<Box<Formula>>;
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