84 lines
1.4 KiB
Rust
84 lines
1.4 KiB
Rust
#[derive(Eq, Hash, PartialEq)]
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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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#[derive(PartialEq)]
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pub struct Predicate
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{
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pub declaration: PredicateDeclaration,
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pub arguments: Vec<Term>,
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}
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#[derive(PartialEq)]
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pub struct Exists
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{
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pub parameters: Vec<VariableDeclaration>,
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pub argument: Box<Formula>,
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}
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#[derive(PartialEq)]
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pub struct ForAll
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{
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pub parameters: Vec<VariableDeclaration>,
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pub argument: Box<Formula>,
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}
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#[derive(PartialEq)]
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pub enum ImplicationDirection
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{
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LeftToRight,
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RightToLeft,
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}
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#[derive(PartialEq)]
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pub enum Formula
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{
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Exists(Exists),
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ForAll(ForAll),
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Not(Box<Formula>),
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And(Vec<Box<Formula>>),
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Or(Vec<Box<Formula>>),
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Implies(Box<Formula>, Box<Formula>, ImplicationDirection),
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Biconditional(Box<Formula>, Box<Formula>),
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Less(Term, Term),
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LessOrEqual(Term, Term),
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Greater(Term, Term),
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GreaterOrEqual(Term, Term),
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Equal(Term, Term),
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NotEqual(Term, Term),
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Boolean(bool),
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Predicate(Predicate),
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}
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#[derive(Eq, Hash, PartialEq)]
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pub enum Domain
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{
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Program,
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Integer,
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}
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#[derive(PartialEq)]
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pub struct VariableDeclaration
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{
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pub name: String,
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pub domain: Domain,
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}
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#[derive(PartialEq)]
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pub enum Term
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{
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Infimum,
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Supremum,
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Integer(i64),
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Symbolic(String),
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String(String),
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Variable(VariableDeclaration),
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Add(Box<Term>, Box<Term>),
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Subtract(Box<Term>, Box<Term>),
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Multiply(Box<Term>, Box<Term>),
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Negative(Box<Term>),
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}
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