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use crate::{
AsgConvertError,
Circuit,
CircuitMember,
ConstValue,
Expression,
ExpressionNode,
FromAst,
Identifier,
Node,
PartialType,
Scope,
Span,
Type,
};
use indexmap::{IndexMap, IndexSet};
use std::{
cell::RefCell,
sync::{Arc, Weak},
};
#[derive(Debug)]
pub struct CircuitInitExpression {
pub parent: RefCell<Option<Weak<Expression>>>,
pub span: Option<Span>,
pub circuit: Arc<Circuit>,
pub values: Vec<(Identifier, Arc<Expression>)>,
}
impl Node for CircuitInitExpression {
fn span(&self) -> Option<&Span> {
self.span.as_ref()
}
}
impl ExpressionNode for CircuitInitExpression {
fn set_parent(&self, parent: Weak<Expression>) {
self.parent.replace(Some(parent));
}
fn get_parent(&self) -> Option<Arc<Expression>> {
self.parent.borrow().as_ref().map(Weak::upgrade).flatten()
}
fn enforce_parents(&self, expr: &Arc<Expression>) {
self.values.iter().for_each(|(_, element)| {
element.set_parent(Arc::downgrade(expr));
})
}
fn get_type(&self) -> Option<Type> {
Some(Type::Circuit(self.circuit.clone()))
}
fn is_mut_ref(&self) -> bool {
false
}
fn const_value(&self) -> Option<ConstValue> {
None
}
fn is_consty(&self) -> bool {
self.values.iter().all(|(_, value)| value.is_consty())
}
}
impl FromAst<leo_ast::CircuitInitExpression> for CircuitInitExpression {
fn from_ast(
scope: &Scope,
value: &leo_ast::CircuitInitExpression,
expected_type: Option<PartialType>,
) -> Result<CircuitInitExpression, AsgConvertError> {
let circuit = scope
.borrow()
.resolve_circuit(&value.name.name)
.ok_or_else(|| AsgConvertError::unresolved_circuit(&value.name.name, &value.name.span))?;
match expected_type {
Some(PartialType::Type(Type::Circuit(expected_circuit))) if expected_circuit == circuit => (),
None => (),
Some(x) => {
return Err(AsgConvertError::unexpected_type(
&x.to_string(),
Some(&circuit.name.borrow().name),
&value.span,
));
}
}
let members: IndexMap<&String, (&Identifier, &leo_ast::Expression)> = value
.members
.iter()
.map(|x| (&x.identifier.name, (&x.identifier, &x.expression)))
.collect();
let mut values: Vec<(Identifier, Arc<Expression>)> = vec![];
let mut defined_variables = IndexSet::<String>::new();
{
let circuit_members = circuit.members.borrow();
for (name, member) in circuit_members.iter() {
if defined_variables.contains(name) {
return Err(AsgConvertError::overridden_circuit_member(
&circuit.name.borrow().name,
name,
&value.span,
));
}
defined_variables.insert(name.clone());
let type_: Type = if let CircuitMember::Variable(type_) = &member {
type_.clone().into()
} else {
continue;
};
if let Some((identifier, receiver)) = members.get(&name) {
let received = Arc::<Expression>::from_ast(scope, *receiver, Some(type_.partial()))?;
values.push(((*identifier).clone(), received));
} else {
return Err(AsgConvertError::missing_circuit_member(
&circuit.name.borrow().name,
name,
&value.span,
));
}
}
for (name, (identifier, _expression)) in members.iter() {
if circuit_members.get(*name).is_none() {
return Err(AsgConvertError::extra_circuit_member(
&circuit.name.borrow().name,
*name,
&identifier.span,
));
}
}
}
Ok(CircuitInitExpression {
parent: RefCell::new(None),
span: Some(value.span.clone()),
circuit,
values,
})
}
}
impl Into<leo_ast::CircuitInitExpression> for &CircuitInitExpression {
fn into(self) -> leo_ast::CircuitInitExpression {
leo_ast::CircuitInitExpression {
name: self.circuit.name.borrow().clone(),
members: self
.values
.iter()
.map(|(name, value)| leo_ast::CircuitImpliedVariableDefinition {
identifier: name.clone(),
expression: value.as_ref().into(),
})
.collect(),
span: self.span.clone().unwrap_or_default(),
}
}
}