renaming, now .length()

This commit is contained in:
damirka 2021-09-10 16:11:55 +03:00
parent 2942bf85fe
commit 093517109b
25 changed files with 176 additions and 77 deletions

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@ -21,19 +21,19 @@ use leo_errors::{Result, Span};
use std::cell::Cell;
#[derive(Clone)]
pub struct SizeOfExpression<'a> {
pub struct LengthOfExpression<'a> {
pub parent: Cell<Option<&'a Expression<'a>>>,
pub span: Option<Span>,
pub inner: Cell<&'a Expression<'a>>,
}
impl<'a> Node for SizeOfExpression<'a> {
impl<'a> Node for LengthOfExpression<'a> {
fn span(&self) -> Option<&Span> {
self.span.as_ref()
}
}
impl<'a> ExpressionNode<'a> for SizeOfExpression<'a> {
impl<'a> ExpressionNode<'a> for LengthOfExpression<'a> {
fn set_parent(&self, parent: &'a Expression<'a>) {
self.parent.replace(Some(parent));
}
@ -47,10 +47,7 @@ impl<'a> ExpressionNode<'a> for SizeOfExpression<'a> {
}
fn get_type(&self) -> Option<Type<'a>> {
// TODO: make decision on get type method
// Should it be always u32? For indexes?
// How type casts are applied to this?
Some(Type::Integer(IntegerType::U32))
Some(Type::Integer(IntegerType::U32)) // For now we stick to U32 value type
}
fn is_mut_ref(&self) -> bool {
@ -58,16 +55,6 @@ impl<'a> ExpressionNode<'a> for SizeOfExpression<'a> {
}
fn const_value(&self) -> Option<ConstValue> {
let _value = self.inner.get().const_value()?;
// match value {
// ConstValue::Int(int) => match &self.target_type {
// Type::Integer(target) => Some(ConstValue::Int(int.cast_to(target))),
// _ => None,
// },
// _ => None,
// }
// TODO: IMPLEMENT CONST VALUE
None
}
@ -76,15 +63,15 @@ impl<'a> ExpressionNode<'a> for SizeOfExpression<'a> {
}
}
impl<'a> FromAst<'a, leo_ast::SizeOfExpression> for SizeOfExpression<'a> {
impl<'a> FromAst<'a, leo_ast::LengthOfExpression> for LengthOfExpression<'a> {
fn from_ast(
scope: &'a Scope<'a>,
value: &leo_ast::SizeOfExpression,
value: &leo_ast::LengthOfExpression,
_expected_type: Option<PartialType<'a>>,
) -> Result<SizeOfExpression<'a>> {
) -> Result<LengthOfExpression<'a>> {
let inner = <&Expression<'a>>::from_ast(scope, &*value.inner, None)?;
Ok(SizeOfExpression {
Ok(LengthOfExpression {
parent: Cell::new(None),
span: Some(value.span.clone()),
inner: Cell::new(inner),
@ -92,9 +79,9 @@ impl<'a> FromAst<'a, leo_ast::SizeOfExpression> for SizeOfExpression<'a> {
}
}
impl<'a> Into<leo_ast::SizeOfExpression> for &SizeOfExpression<'a> {
fn into(self) -> leo_ast::SizeOfExpression {
leo_ast::SizeOfExpression {
impl<'a> Into<leo_ast::LengthOfExpression> for &LengthOfExpression<'a> {
fn into(self) -> leo_ast::LengthOfExpression {
leo_ast::LengthOfExpression {
inner: Box::new(self.inner.get().into()),
span: self.span.clone().unwrap_or_default(),
}

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@ -65,8 +65,8 @@ pub use variable_ref::*;
mod cast;
pub use cast::*;
mod sizeof;
pub use sizeof::*;
mod lengthof;
pub use lengthof::*;
use crate::{ConstValue, FromAst, Node, PartialType, Scope, Type};
use leo_errors::{Result, Span};
@ -79,7 +79,7 @@ pub enum Expression<'a> {
Unary(UnaryExpression<'a>),
Ternary(TernaryExpression<'a>),
Cast(CastExpression<'a>),
SizeOf(SizeOfExpression<'a>),
LengthOf(LengthOfExpression<'a>),
ArrayInline(ArrayInlineExpression<'a>),
ArrayInit(ArrayInitExpression<'a>),
@ -111,7 +111,7 @@ impl<'a> Node for Expression<'a> {
Unary(x) => x.span(),
Ternary(x) => x.span(),
Cast(x) => x.span(),
SizeOf(x) => x.span(),
LengthOf(x) => x.span(),
ArrayInline(x) => x.span(),
ArrayInit(x) => x.span(),
ArrayAccess(x) => x.span(),
@ -146,7 +146,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.set_parent(parent),
Ternary(x) => x.set_parent(parent),
Cast(x) => x.set_parent(parent),
SizeOf(x) => x.set_parent(parent),
LengthOf(x) => x.set_parent(parent),
ArrayInline(x) => x.set_parent(parent),
ArrayInit(x) => x.set_parent(parent),
ArrayAccess(x) => x.set_parent(parent),
@ -168,7 +168,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.get_parent(),
Ternary(x) => x.get_parent(),
Cast(x) => x.get_parent(),
SizeOf(x) => x.get_parent(),
LengthOf(x) => x.get_parent(),
ArrayInline(x) => x.get_parent(),
ArrayInit(x) => x.get_parent(),
ArrayAccess(x) => x.get_parent(),
@ -190,7 +190,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.enforce_parents(expr),
Ternary(x) => x.enforce_parents(expr),
Cast(x) => x.enforce_parents(expr),
SizeOf(x) => x.enforce_parents(expr),
LengthOf(x) => x.enforce_parents(expr),
ArrayInline(x) => x.enforce_parents(expr),
ArrayInit(x) => x.enforce_parents(expr),
ArrayAccess(x) => x.enforce_parents(expr),
@ -212,7 +212,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.get_type(),
Ternary(x) => x.get_type(),
Cast(x) => x.get_type(),
SizeOf(x) => x.get_type(),
LengthOf(x) => x.get_type(),
ArrayInline(x) => x.get_type(),
ArrayInit(x) => x.get_type(),
ArrayAccess(x) => x.get_type(),
@ -234,7 +234,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.is_mut_ref(),
Ternary(x) => x.is_mut_ref(),
Cast(x) => x.is_mut_ref(),
SizeOf(x) => x.is_mut_ref(),
LengthOf(x) => x.is_mut_ref(),
ArrayInline(x) => x.is_mut_ref(),
ArrayInit(x) => x.is_mut_ref(),
ArrayAccess(x) => x.is_mut_ref(),
@ -256,7 +256,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.const_value(),
Ternary(x) => x.const_value(),
Cast(x) => x.const_value(),
SizeOf(x) => x.const_value(),
LengthOf(x) => x.const_value(),
ArrayInline(x) => x.const_value(),
ArrayInit(x) => x.const_value(),
ArrayAccess(x) => x.const_value(),
@ -278,7 +278,7 @@ impl<'a> ExpressionNode<'a> for Expression<'a> {
Unary(x) => x.is_consty(),
Ternary(x) => x.is_consty(),
Cast(x) => x.is_consty(),
SizeOf(x) => x.is_consty(),
LengthOf(x) => x.is_consty(),
ArrayInline(x) => x.is_consty(),
ArrayInit(x) => x.is_consty(),
ArrayAccess(x) => x.is_consty(),
@ -317,9 +317,9 @@ impl<'a> FromAst<'a, leo_ast::Expression> for &'a Expression<'a> {
.context
.alloc_expression(CastExpression::from_ast(scope, cast, expected_type).map(Expression::Cast)?),
SizeOf(sizeof) => scope
.context
.alloc_expression(SizeOfExpression::from_ast(scope, sizeof, expected_type).map(Expression::SizeOf)?),
LengthOf(lengthof) => scope.context.alloc_expression(
LengthOfExpression::from_ast(scope, lengthof, expected_type).map(Expression::LengthOf)?,
),
ArrayInline(array_inline) => scope.context.alloc_expression(
ArrayInlineExpression::from_ast(scope, array_inline, expected_type).map(Expression::ArrayInline)?,
@ -373,7 +373,7 @@ impl<'a> Into<leo_ast::Expression> for &Expression<'a> {
Unary(x) => leo_ast::Expression::Unary(x.into()),
Ternary(x) => leo_ast::Expression::Ternary(x.into()),
Cast(x) => leo_ast::Expression::Cast(x.into()),
SizeOf(x) => leo_ast::Expression::SizeOf(x.into()),
LengthOf(x) => leo_ast::Expression::LengthOf(x.into()),
ArrayInline(x) => leo_ast::Expression::ArrayInline(x.into()),
ArrayInit(x) => leo_ast::Expression::ArrayInit(x.into()),
ArrayAccess(x) => leo_ast::Expression::ArrayAccess(x.into()),

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@ -48,7 +48,7 @@ impl<'a, T: Monoid, R: MonoidalReducerExpression<'a, T>> MonoidalDirector<'a, T,
Expression::CircuitInit(e) => self.reduce_circuit_init(e),
Expression::Ternary(e) => self.reduce_ternary_expression(e),
Expression::Cast(e) => self.reduce_cast_expression(e),
Expression::SizeOf(e) => self.reduce_sizeof_expression(e),
Expression::LengthOf(e) => self.reduce_lengthof_expression(e),
Expression::Constant(e) => self.reduce_constant(e),
Expression::TupleAccess(e) => self.reduce_tuple_access(e),
Expression::TupleInit(e) => self.reduce_tuple_init(e),
@ -139,10 +139,10 @@ impl<'a, T: Monoid, R: MonoidalReducerExpression<'a, T>> MonoidalDirector<'a, T,
self.reducer.reduce_cast_expression(input, inner)
}
pub fn reduce_sizeof_expression(&mut self, input: &SizeOfExpression<'a>) -> T {
pub fn reduce_lengthof_expression(&mut self, input: &LengthOfExpression<'a>) -> T {
let inner = self.reduce_expression(input.inner.get());
self.reducer.reduce_sizeof_expression(input, inner)
self.reducer.reduce_lengthof_expression(input, inner)
}
pub fn reduce_constant(&mut self, input: &Constant<'a>) -> T {

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@ -68,7 +68,7 @@ pub trait MonoidalReducerExpression<'a, T: Monoid> {
inner
}
fn reduce_sizeof_expression(&mut self, input: &SizeOfExpression<'a>, inner: T) -> T {
fn reduce_lengthof_expression(&mut self, input: &LengthOfExpression<'a>, inner: T) -> T {
inner
}

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@ -48,7 +48,7 @@ impl<'a, R: ReconstructingReducerExpression<'a>> ReconstructingDirector<'a, R> {
Expression::CircuitInit(e) => self.reduce_circuit_init(e),
Expression::Ternary(e) => self.reduce_ternary_expression(e),
Expression::Cast(e) => self.reduce_cast_expression(e),
Expression::SizeOf(e) => Expression::SizeOf(e), //self.reduce_sizeof_expression(e), // TODO: implement REDUCER
Expression::LengthOf(e) => Expression::LengthOf(e), // TODO: implement REDUCER
Expression::Constant(e) => self.reduce_constant(e),
Expression::TupleAccess(e) => self.reduce_tuple_access(e),
Expression::TupleInit(e) => self.reduce_tuple_init(e),

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@ -76,7 +76,7 @@ pub trait ExpressionVisitor<'a> {
Default::default()
}
fn visit_sizeof_expression(&mut self, input: &SizeOfExpression<'a>) -> VisitResult {
fn visit_lengthof_expression(&mut self, input: &LengthOfExpression<'a>) -> VisitResult {
Default::default()
}

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@ -61,7 +61,7 @@ impl<'a, R: ExpressionVisitor<'a>> VisitorDirector<'a, R> {
Expression::CircuitInit(e) => self.visit_circuit_init(e),
Expression::Ternary(e) => self.visit_ternary_expression(e),
Expression::Cast(e) => self.visit_cast_expression(e),
Expression::SizeOf(e) => self.visit_sizeof_expression(e),
Expression::LengthOf(e) => self.visit_lengthof_expression(e),
Expression::Constant(e) => self.visit_constant(e),
Expression::TupleAccess(e) => self.visit_tuple_access(e),
Expression::TupleInit(e) => self.visit_tuple_init(e),
@ -196,8 +196,8 @@ impl<'a, R: ExpressionVisitor<'a>> VisitorDirector<'a, R> {
}
}
pub fn visit_sizeof_expression(&mut self, input: &SizeOfExpression<'a>) -> ConcreteVisitResult {
match self.visitor.visit_sizeof_expression(input) {
pub fn visit_lengthof_expression(&mut self, input: &LengthOfExpression<'a>) -> ConcreteVisitResult {
match self.visitor.visit_lengthof_expression(input) {
VisitResult::VisitChildren => {
self.visit_expression(&input.inner)?;
Ok(())

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@ -19,18 +19,18 @@
use super::*;
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct SizeOfExpression {
pub struct LengthOfExpression {
pub inner: Box<Expression>,
pub span: Span,
}
impl fmt::Display for SizeOfExpression {
impl fmt::Display for LengthOfExpression {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "sizeof {}", self.inner)
}
}
impl Node for SizeOfExpression {
impl Node for LengthOfExpression {
fn span(&self) -> &Span {
&self.span
}

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@ -54,8 +54,8 @@ mod call;
pub use call::*;
mod cast;
pub use cast::*;
mod sizeof;
pub use sizeof::*;
mod lengthof;
pub use lengthof::*;
/// Expression that evaluates to a value
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
@ -66,7 +66,7 @@ pub enum Expression {
Unary(UnaryExpression),
Ternary(TernaryExpression),
Cast(CastExpression),
SizeOf(SizeOfExpression),
LengthOf(LengthOfExpression),
ArrayInline(ArrayInlineExpression),
ArrayInit(ArrayInitExpression),
@ -103,7 +103,7 @@ impl Node for Expression {
CircuitStaticFunctionAccess(n) => n.span(),
Call(n) => n.span(),
Cast(n) => n.span(),
SizeOf(n) => n.span(),
LengthOf(n) => n.span(),
}
}
@ -126,7 +126,7 @@ impl Node for Expression {
CircuitStaticFunctionAccess(n) => n.set_span(span),
Call(n) => n.set_span(span),
Cast(n) => n.set_span(span),
SizeOf(n) => n.set_span(span),
LengthOf(n) => n.set_span(span),
}
}
}
@ -151,7 +151,7 @@ impl fmt::Display for Expression {
CircuitStaticFunctionAccess(n) => n.fmt(f),
Call(n) => n.fmt(f),
Cast(n) => n.fmt(f),
SizeOf(n) => n.fmt(f),
LengthOf(n) => n.fmt(f),
}
}
}

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@ -57,7 +57,7 @@ impl<R: ReconstructingReducer> ReconstructingDirector<R> {
Expression::Unary(unary) => Expression::Unary(self.reduce_unary(unary)?),
Expression::Ternary(ternary) => Expression::Ternary(self.reduce_ternary(ternary)?),
Expression::Cast(cast) => Expression::Cast(self.reduce_cast(cast)?),
Expression::SizeOf(sizeof) => Expression::SizeOf(sizeof.clone()), // Expression::SizeOf(self.reduce_sizeof(sizeof)?), // TODO: add reducer
Expression::LengthOf(sizeof) => Expression::LengthOf(sizeof.clone()), // Expression::LengthOf(self.reduce_sizeof(sizeof)?), // TODO: add reducer
Expression::ArrayInline(array_inline) => Expression::ArrayInline(self.reduce_array_inline(array_inline)?),
Expression::ArrayInit(array_init) => Expression::ArrayInit(self.reduce_array_init(array_init)?),

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@ -98,8 +98,8 @@ impl<'a, F: PrimeField, G: GroupType<F>> ConstrainedProgram<'a, F, G> {
// Cast
Expression::Cast(_) => unimplemented!("casts not implemented"),
// SizeOf
Expression::SizeOf(sizeof) => self.enforce_sizeof(cs, sizeof, span),
// LengthOf
Expression::LengthOf(sizeof) => self.enforce_sizeof(cs, sizeof, span),
// Variables
Expression::VariableRef(variable_ref) => self.evaluate_ref(variable_ref),

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@ -21,7 +21,7 @@ use crate::{
value::{ConstrainedValue, Integer},
GroupType,
};
use leo_asg::{ConstInt, SizeOfExpression};
use leo_asg::{ConstInt, LengthOfExpression};
use leo_errors::{Result, Span};
use snarkvm_fields::PrimeField;
@ -32,16 +32,16 @@ impl<'a, F: PrimeField, G: GroupType<F>> ConstrainedProgram<'a, F, G> {
pub fn enforce_sizeof<CS: ConstraintSystem<F>>(
&mut self,
cs: &mut CS,
sizeof: &'a SizeOfExpression<'a>,
_span: &Span,
lengthof: &'a LengthOfExpression<'a>,
span: &Span,
) -> Result<ConstrainedValue<'a, F, G>> {
let value = self.enforce_expression(cs, sizeof.inner.get())?;
let value = self.enforce_expression(cs, lengthof.inner.get())?;
Ok(match value {
ConstrainedValue::Array(array) => {
ConstrainedValue::Integer(Integer::new(&ConstInt::U32(array.len() as u32)))
}
_ => unimplemented!("sizeof can only be used for arrays"),
_ => return Err(leo_errors::CompilerError::lengthof_can_only_be_used_on_arrays(span).into()),
})
}
}

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@ -14,5 +14,5 @@
// You should have received a copy of the GNU General Public License
// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
pub mod sizeof;
pub use self::sizeof::*;
pub mod lengthof;
pub use self::lengthof::*;

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@ -834,4 +834,11 @@ create_errors!(
msg: format!("no implementation found for `{}`", operation),
help: None,
}
@formatted
lengthof_can_only_be_used_on_arrays {
args: (),
msg: "length() can only be called on an array value".to_string(),
help: None,
}
);

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@ -222,3 +222,8 @@ fn main() -> Result<()> {
Ok(())
}
#[test]
fn test_true() {
assert!(true);
}

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@ -402,8 +402,20 @@ impl ParserContext {
///
pub fn parse_postfix_expression(&mut self) -> Result<Expression> {
let mut expr = self.parse_primary_expression()?;
while let Some(token) = self.eat_any(&[Token::LeftSquare, Token::Dot, Token::LeftParen, Token::DoubleColon]) {
while let Some(token) = self.eat_any(&[
Token::LeftSquare,
Token::Dot,
Token::LeftParen,
Token::DoubleColon,
Token::LengthOf,
]) {
match token.token {
Token::LengthOf => {
expr = Expression::LengthOf(LengthOfExpression {
span: expr.span().clone(),
inner: Box::new(expr),
})
}
Token::LeftSquare => {
if self.eat(Token::DotDot).is_some() {
let right = if self.peek_token().as_ref() != &Token::RightSquare {
@ -727,10 +739,10 @@ impl ParserContext {
};
Expression::Identifier(ident)
}
Token::SizeOf => Expression::SizeOf(SizeOfExpression {
span,
inner: Box::new(self.parse_primary_expression()?),
}),
// Token::LengthOf => Expression::LengthOf(LengthOfExpression {
// span,
// inner: Box::new(self.parse_primary_expression()?),
// }),
token => {
return Err(ParserError::unexpected_str(token, "expression", &span).into());
}

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@ -388,6 +388,9 @@ impl Token {
return (len, Some(Token::DotDotDot));
} else if let Some(len) = eat(input, "..") {
return (len, Some(Token::DotDot));
} else if let Some(len) = eat(input, ".length()") {
// FIXME: remove this code once we allow method calls
return (len, Some(Token::LengthOf));
}
return (1, Some(Token::Dot));
}
@ -519,7 +522,6 @@ impl Token {
"string" => Token::String,
"true" => Token::True,
"type" => Token::Type,
"sizeof" => Token::SizeOf,
"u8" => Token::U8,
"u16" => Token::U16,
"u32" => Token::U32,

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@ -140,8 +140,9 @@ pub enum Token {
String,
Type,
// Operators
SizeOf,
// Not yet in ABNF
// arr.length() token - hacky zone
LengthOf,
// Not yet in ABNF
// BitAnd,
@ -199,7 +200,7 @@ pub const KEYWORD_TOKENS: &[Token] = &[
Token::String,
Token::True,
Token::Type,
Token::SizeOf,
Token::LengthOf,
Token::U8,
Token::U16,
Token::U32,
@ -312,7 +313,7 @@ impl fmt::Display for Token {
Static => write!(f, "static"),
String => write!(f, "string"),
Type => write!(f, "type"),
SizeOf => write!(f, "sizeof"),
LengthOf => write!(f, ".length()"), // FIXME
Eof => write!(f, ""),
// BitAnd => write!(f, "&"),
// BitAndEq => write!(f, "&="),

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@ -1,6 +1,7 @@
[main]
y: bool = true;
n: bool = false;
a: [char; 11] = "hello world";
[registers]
r0: bool = false;

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@ -0,0 +1,9 @@
/*
namespace: Compile
expectation: Pass
input_file: input/dummy.in
*/
function main(a: [char; 11], y: bool) -> bool {
return y == (a.length() == 11);
}

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@ -0,0 +1,9 @@
/*
namespace: Compile
expectation: Fail
input_file: input/dummy.in
*/
function main(y: bool) {
return 10.length() == 10u8;
}

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@ -0,0 +1,17 @@
/*
namespace: Compile
expectation: Pass
input_file: input/dummy.in
*/
function main(y: bool) -> bool {
let x = 0u8;
for i in 0..strlen("I swear to god I had something for this") {
x += 1;
}
return (x == 39) == y;
}
function strlen(str: [char; _]) -> u32 {
return str.length();
}

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@ -0,0 +1,22 @@
---
namespace: Compile
expectation: Pass
outputs:
- circuit:
num_public_variables: 0
num_private_variables: 12
num_constraints: 1
at: 336f487fe39f24aef980deaaf7d6dddcc0dbfa8f121c3470b05546c1ac13f87e
bt: ae35381db5558456a49acb22132b4930efd53b90eb2668df06c5d9c1a6b0ab9f
ct: cf1cbb66a638b4860a516671fb74850e6ccf787fe6c4c8d29e9c04efe880bd05
output:
- input_file: input/dummy.in
output:
registers:
r0:
type: bool
value: "true"
initial_ast: f8b64e1675dcb9624011ccf7a6ee9cd4fd7767f9fffbea3c87cbb21cbe734d67
imports_resolved_ast: f8b64e1675dcb9624011ccf7a6ee9cd4fd7767f9fffbea3c87cbb21cbe734d67
canonicalized_ast: f8b64e1675dcb9624011ccf7a6ee9cd4fd7767f9fffbea3c87cbb21cbe734d67
type_inferenced_ast: 4934eaa23f00ce1dfd8e1062e7a6b3bdbc6c5cd4e5f53641a930e910fde34206

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@ -0,0 +1,5 @@
---
namespace: Compile
expectation: Fail
outputs:
- "Error [EASG0373025]: unexpected type, expected: '()', received: 'bool'\n --> compiler-test:4:12\n |\n 4 | return 10.length() == 10u8;\n | ^^^^^^^^^^^^^^^^^^^"

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@ -0,0 +1,22 @@
---
namespace: Compile
expectation: Pass
outputs:
- circuit:
num_public_variables: 0
num_private_variables: 1
num_constraints: 1
at: 042610d0fd1fe6d6ac112138f8755752f44c7d2a00f1b5960574d6da5cda393f
bt: e97756698880ab7555a959a5fb5c6b4e15bd64612aa677adbfe2d0bd91f0a83c
ct: cf1cbb66a638b4860a516671fb74850e6ccf787fe6c4c8d29e9c04efe880bd05
output:
- input_file: input/dummy.in
output:
registers:
r0:
type: bool
value: "true"
initial_ast: 3cd71a0e1c6b7aea15b7822c7ad19f400886e82ded67c55d24046d179d202ab0
imports_resolved_ast: 3cd71a0e1c6b7aea15b7822c7ad19f400886e82ded67c55d24046d179d202ab0
canonicalized_ast: 2f670f34d1dffb2dd07782b566d6da942ea1cbb0ed5c3da1fc7e78e39fa096f7
type_inferenced_ast: 4c616d4451798fff86c86c586729b643ad8194248c22956880f168b40a8eddba