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use typed assignee access

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This commit is contained in:
collin 2020-10-15 18:11:39 -07:00
parent 3bd6d2e6b6
commit 323992696c
2 changed files with 35 additions and 45 deletions
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73
compiler/src/statement/assign/assign.rs
View File

@ -24,7 +24,7 @@ use crate::{
value::ConstrainedValue,
GroupType,
};
use leo_typed::{Assignee, Expression, Span};
use leo_typed::{Assignee, AssigneeAccess, Expression, Span};
use snarkos_models::{
curves::{Field, PrimeField},
@ -54,61 +54,56 @@ impl<F: Field + PrimeField, G: GroupType<F>> ConstrainedProgram<F, G> {
self.enforce_expression(cs, file_scope.clone(), function_scope.clone(), None, expression)?;
// Mutate the old value into the new value
match assignee {
Assignee::Identifier(_identifier) => {
let condition = indicator.unwrap_or(Boolean::Constant(true));
let old_value = self.get_mutable_assignee(variable_name.clone(), span.clone())?;
if assignee.accesses.is_empty() {
let condition = indicator.unwrap_or(Boolean::Constant(true));
let old_value = self.get_mutable_assignee(variable_name.clone(), span.clone())?;
new_value.resolve_type(Some(old_value.to_type(span.clone())?), span.clone())?;
new_value.resolve_type(Some(old_value.to_type(span.clone())?), span.clone())?;
let name_unique = format!("select {} {}:{}", new_value, span.line, span.start);
let selected_value =
ConstrainedValue::conditionally_select(cs.ns(|| name_unique), &condition, &new_value, old_value)
.map_err(|_| StatementError::select_fail(new_value.to_string(), old_value.to_string(), span))?;
let name_unique = format!("select {} {}:{}", new_value, span.line, span.start);
let selected_value =
ConstrainedValue::conditionally_select(cs.ns(|| name_unique), &condition, &new_value, old_value)
.map_err(|_| StatementError::select_fail(new_value.to_string(), old_value.to_string(), span))?;
*old_value = selected_value;
*old_value = selected_value;
Ok(())
}
Assignee::Array(_assignee, range_or_expression) => self.assign_array(
cs,
file_scope,
function_scope,
indicator,
variable_name,
range_or_expression,
new_value,
span,
),
Assignee::Tuple(_tuple, index) => self.assign_tuple(cs, indicator, variable_name, index, new_value, span),
Assignee::CircuitField(assignee, circuit_variable) => {
// Mutate a circuit variable using the self keyword.
if let Assignee::Identifier(circuit_name) = *assignee {
if circuit_name.is_self() {
let self_circuit_variable_name = new_scope(circuit_name.name, circuit_variable.name.clone());
return Ok(());
} else {
match assignee.accesses[0].clone() {
AssigneeAccess::Array(range_or_expression) => self.assign_array(
cs,
file_scope,
function_scope,
indicator,
variable_name,
range_or_expression,
new_value,
span,
),
AssigneeAccess::Tuple(index) => self.assign_tuple(cs, indicator, variable_name, index, new_value, span),
AssigneeAccess::Member(identifier) => {
// Mutate a circuit variable using the self keyword.
if assignee.identifier.is_self() {
let self_circuit_variable_name =
new_scope(assignee.identifier.name.clone(), identifier.name.clone());
let self_variable_name = new_scope(file_scope, self_circuit_variable_name);
let value = self.mutate_circuit_variable(
cs,
indicator,
declared_circuit_reference,
circuit_variable,
identifier,
new_value,
span,
)?;
self.store(self_variable_name, value);
} else {
let _value = self.mutate_circuit_variable(
cs,
indicator,
variable_name,
circuit_variable,
new_value,
span,
)?;
let _value =
self.mutate_circuit_variable(cs, indicator, variable_name, identifier, new_value, span)?;
}
Ok(())
}
Ok(())
}
}
}

7
compiler/src/statement/assign/assignee.rs
View File

@ -22,12 +22,7 @@ use leo_typed::{Assignee, Span};
use snarkos_models::curves::{Field, PrimeField};
pub fn resolve_assignee(scope: String, assignee: Assignee) -> String {
match assignee {
Assignee::Identifier(name) => new_scope(scope, name.to_string()),
Assignee::Array(array, _index) => resolve_assignee(scope, *array),
Assignee::Tuple(tuple, _index) => resolve_assignee(scope, *tuple),
Assignee::CircuitField(circuit_name, _member) => resolve_assignee(scope, *circuit_name),
}
new_scope(scope, assignee.identifier().to_string())
}
impl<F: Field + PrimeField, G: GroupType<F>> ConstrainedProgram<F, G> {