impl pass by value functions

This commit is contained in:
collin 2020-05-04 16:42:40 -07:00
parent 98a7d0bdf6
commit 10ca30ac93
13 changed files with 117 additions and 570 deletions

566
Cargo.lock generated
View File

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checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
[[package]]
name = "rustc-hex"
version = "2.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3e75f6a532d0fd9f7f13144f392b6ad56a32696bfcd9c78f797f16bbb6f072d6"
[[package]]
name = "ryu"
version = "1.0.2"
@ -1304,34 +883,6 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
[[package]]
name = "secp256k1"
version = "0.15.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4d311229f403d64002e9eed9964dfa5a0a0c1ac443344f7546bf48e916c6053a"
dependencies = [
"cc",
"rand 0.6.5",
]
[[package]]
name = "secp256k1"
version = "0.17.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2932dc07acd2066ff2e3921a4419606b220ba6cd03a9935123856cc534877056"
dependencies = [
"secp256k1-sys",
]
[[package]]
name = "secp256k1-sys"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7ab2c26f0d3552a0f12e639ae8a64afc2e3db9c52fe32f5fc6c289d38519f220"
dependencies = [
"cc",
]
[[package]]
name = "serde"
version = "1.0.104"
@ -1402,12 +953,6 @@ dependencies = [
"failure",
]
[[package]]
name = "slab"
version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
[[package]]
name = "smallvec"
version = "1.4.0"
@ -1421,7 +966,7 @@ dependencies = [
"blake2",
"derivative",
"digest 0.7.6",
"rand 0.7.3",
"rand",
"rayon",
"sha2",
"smallvec",
@ -1436,7 +981,7 @@ name = "snarkos-curves"
version = "0.8.0"
dependencies = [
"derivative",
"rand 0.7.3",
"rand",
"snarkos-errors",
"snarkos-models",
"snarkos-utilities",
@ -1446,14 +991,11 @@ dependencies = [
name = "snarkos-errors"
version = "0.8.0"
dependencies = [
"base58",
"bincode",
"failure",
"hex",
"jsonrpc-core",
"rocksdb",
"secp256k1 0.15.5",
"wagyu-model",
]
[[package]]
@ -1475,8 +1017,8 @@ version = "0.8.0"
dependencies = [
"derivative",
"failure",
"rand 0.7.3",
"rand_xorshift 0.2.0",
"rand",
"rand_xorshift",
"smallvec",
"snarkos-errors",
"snarkos-utilities",
@ -1490,15 +1032,9 @@ version = "0.8.0"
name = "snarkos-utilities"
version = "0.8.0"
dependencies = [
"rand 0.7.3",
"rand",
]
[[package]]
name = "static_assertions"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]]
name = "strsim"
version = "0.8.0"
@ -1529,12 +1065,6 @@ dependencies = [
"syn 1.0.16",
]
[[package]]
name = "subtle"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
[[package]]
name = "syn"
version = "0.15.44"
@ -1607,27 +1137,6 @@ dependencies = [
"lazy_static",
]
[[package]]
name = "tiny-keccak"
version = "2.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2c9d3793400a45f954c52e73d068316d76b6f4e36977e3fcebb13a2721e80237"
dependencies = [
"crunchy",
]
[[package]]
name = "tokio"
version = "0.2.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05c1d570eb1a36f0345a5ce9c6c6e665b70b73d11236912c0b477616aeec47b1"
dependencies = [
"bytes",
"futures-core",
"memchr",
"pin-project-lite",
]
[[package]]
name = "toml"
version = "0.5.6"
@ -1649,18 +1158,6 @@ version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f00ed7be0c1ff1e24f46c3d2af4859f7e863672ba3a6e92e7cff702bf9f06c2"
[[package]]
name = "uint"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "173cd16430c206dc1a430af8a89a0e9c076cf15cb42b4aedb10e8cc8fee73681"
dependencies = [
"byteorder",
"crunchy",
"rustc-hex",
"static_assertions",
]
[[package]]
name = "unicode-segmentation"
version = "1.6.0"
@ -1703,31 +1200,6 @@ version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
[[package]]
name = "wagyu-model"
version = "0.6.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "98dcfd8275fadf569c386e111968827cb3ca49937dbe816e2f2d43723272635f"
dependencies = [
"base58",
"base58-monero",
"bech32",
"byteorder",
"crypto-mac 0.7.0",
"ethereum-types",
"failure",
"ff",
"hex",
"rand 0.7.3",
"rand_core 0.5.1",
"ripemd160",
"rlp",
"secp256k1 0.17.2",
"serde_json",
"sha2",
"uint",
]
[[package]]
name = "wasi"
version = "0.9.0+wasi-snapshot-preview1"

View File

@ -1,9 +1,10 @@
function test() -> (u32, u32[2]) {
return 1, [2, 3]
function test(a: u32) {
a = 5;
}
function main() -> u32 {
let (a, b) = test();
// a, u32[2] b = test() <- explicit type also works
let a = 1;
test(a);
return a
}

View File

@ -49,7 +49,10 @@ impl<F: Field + PrimeField> ConstraintSynthesizer<F> for Benchmark<F> {
println!(" compiled: {:#?}", program);
let program = program.name("simple".into());
leo_compiler::ResolvedProgram::generate_constraints(cs, program);
println!(
"Result: {}",
leo_compiler::ResolvedProgram::generate_constraints(cs, program)
);
Ok(())
}

View File

@ -911,6 +911,14 @@ pub enum AssertStatement<'ast> {
AssertEq(AssertEq<'ast>),
}
#[derive(Clone, Debug, FromPest, PartialEq)]
#[pest_ast(rule(Rule::statement_expression))]
pub struct ExpressionStatement<'ast> {
pub expression: Expression<'ast>,
#[pest_ast(outer())]
pub span: Span<'ast>,
}
#[derive(Clone, Debug, FromPest, PartialEq)]
#[pest_ast(rule(Rule::statement))]
pub enum Statement<'ast> {
@ -921,6 +929,7 @@ pub enum Statement<'ast> {
Conditional(ConditionalStatement<'ast>),
Iteration(ForStatement<'ast>),
Assert(AssertStatement<'ast>),
Expression(ExpressionStatement<'ast>),
}
impl<'ast> fmt::Display for ReturnStatement<'ast> {
@ -1014,6 +1023,7 @@ impl<'ast> fmt::Display for Statement<'ast> {
Statement::Conditional(ref statement) => write!(f, "{}", statement),
Statement::Iteration(ref statement) => write!(f, "{}", statement),
Statement::Assert(ref statement) => write!(f, "{}", statement),
Statement::Expression(ref statement) => write!(f, "{}", statement.expression),
}
}
}

View File

@ -1,10 +1,14 @@
//! Methods to enforce constraints and construct a resolved aleo program.
use crate::ast;
use crate::constraints::{
new_scope, new_scope_from_variable, new_variable_from_variables, ResolvedProgram, ResolvedValue,
use crate::{
ast,
constraints::{
new_scope, new_scope_from_variable, new_variable_from_variables, ResolvedProgram,
ResolvedValue,
},
types::{Expression, Function, Program, Type},
Import,
};
use crate::{Expression, Function, Import, Program, Type};
use from_pest::FromPest;
use snarkos_models::curves::{Field, PrimeField};
@ -12,10 +16,25 @@ use snarkos_models::gadgets::r1cs::ConstraintSystem;
use std::fs;
impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
fn enforce_argument(
&mut self,
cs: &mut CS,
scope: String,
caller_scope: String,
function_name: String,
argument: Expression<F>,
) -> ResolvedValue<F> {
match argument {
Expression::Variable(variable) => self.enforce_variable(caller_scope, variable),
expression => self.enforce_expression(cs, scope, function_name, expression),
}
}
pub(crate) fn enforce_function(
&mut self,
cs: &mut CS,
scope: String,
caller_scope: String,
function: Function<F>,
arguments: Vec<Expression<F>>,
) -> ResolvedValue<F> {
@ -30,7 +49,7 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
)
}
// Store arguments as variables in resolved program
// Store argument values as new variables in resolved program
function
.parameters
.clone()
@ -40,9 +59,10 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
// Check that argument is correct type
match parameter.ty.clone() {
Type::U32 => {
match self.enforce_expression(
match self.enforce_argument(
cs,
scope.clone(),
caller_scope.clone(),
function_name.clone(),
argument,
) {
@ -60,9 +80,10 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
}
}
Type::FieldElement => {
match self.enforce_expression(
match self.enforce_argument(
cs,
scope.clone(),
caller_scope.clone(),
function_name.clone(),
argument,
) {
@ -78,9 +99,10 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
}
}
Type::Boolean => {
match self.enforce_expression(
match self.enforce_argument(
cs,
scope.clone(),
caller_scope.clone(),
function_name.clone(),
argument,
) {
@ -176,7 +198,7 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
}))
});
self.enforce_function(cs, scope, function, arguments)
self.enforce_function(cs, scope, function_name, function, arguments)
}
fn enforce_import(&mut self, cs: &mut CS, scope: String, import: Import<F>) {

View File

@ -12,7 +12,7 @@ use snarkos_models::gadgets::utilities::boolean::Boolean;
impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
/// Enforce a variable expression by getting the resolved value
fn enforce_variable(
pub(crate) fn enforce_variable(
&mut self,
scope: String,
unresolved_variable: Variable<F>,
@ -27,6 +27,7 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
// Check global scope (function and struct names)
self.get_mut_variable(&unresolved_variable).unwrap().clone()
} else {
println!("searched for {}", variable_name);
unimplemented!("variable declaration \"{}\" not found", unresolved_variable)
}
}
@ -357,6 +358,7 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
&mut self,
cs: &mut CS,
file_scope: String,
function_scope: String,
function: Variable<F>,
arguments: Vec<Expression<F>>,
) -> ResolvedValue<F> {
@ -365,7 +367,8 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
Some(value) => match value.clone() {
ResolvedValue::Function(function) => {
// this function call is inline so we unwrap the return value
match self.enforce_function(cs, file_scope, function, arguments) {
match self.enforce_function(cs, file_scope, function_scope, function, arguments)
{
ResolvedValue::Return(return_values) => {
if return_values.len() == 1 {
return_values[0].clone()
@ -551,9 +554,13 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
),
// Functions
Expression::FunctionCall(function, arguments) => {
self.enforce_function_call_expression(cs, file_scope, function, arguments)
} // _ => unimplemented!(),
Expression::FunctionCall(function, arguments) => self.enforce_function_call_expression(
cs,
file_scope,
function_scope,
function,
arguments,
), // _ => unimplemented!(),
}
}
}

View File

@ -53,6 +53,8 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
}
pub(crate) fn store(&mut self, name: String, value: ResolvedValue<F>) {
// println!("inserting: {}", name);
// println!("value: {}\n", value);
self.resolved_names.insert(name, value);
}

View File

@ -91,9 +91,7 @@ impl<F: Field + PrimeField> fmt::Display for ResolvedValue<F> {
ResolvedValue::StructDefinition(ref _definition) => {
unimplemented!("cannot return struct definition in program")
}
ResolvedValue::Function(ref _function) => {
unimplemented!("cannot return function definition in program")
} // _ => unimplemented!("display not impl for value"),
ResolvedValue::Function(ref function) => write!(f, "{}();", function.function_name), // _ => unimplemented!("display not impl for value"),
}
}
}

View File

@ -226,6 +226,15 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
expressions: Vec<Expression<F>>,
return_types: Vec<Type<F>>,
) -> ResolvedValue<F> {
// Make sure we return the correct number of values
if return_types.len() != expressions.len() {
unimplemented!(
"function expected {} return values, got {} values",
return_types.len(),
expressions.len(),
)
}
ResolvedValue::Return(
expressions
.into_iter()
@ -388,7 +397,6 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
let mut res = None;
match statement {
Statement::Return(expressions) => {
// TODO: add support for early termination
res = Some(self.enforce_return_statement(
cs,
file_scope,
@ -452,6 +460,19 @@ impl<F: Field + PrimeField, CS: ConstraintSystem<F>> ResolvedProgram<F, CS> {
self.enforce_assert_eq_statement(cs, resolved_left, resolved_right);
}
Statement::Expression(expression) => {
match self.enforce_expression(cs, file_scope, function_scope, expression.clone()) {
ResolvedValue::Return(values) => {
if !values.is_empty() {
unimplemented!("function return values not assigned {:#?}", values)
}
}
_ => unimplemented!(
"expected assignment of return values for expression {}",
expression
),
}
}
};
res

View File

@ -169,6 +169,7 @@ statement_assert = {
assert_eq
// | assert_true |
}
statement_expression = { expression }
statement = {
(statement_return
@ -178,6 +179,7 @@ statement = {
| statement_assert
| statement_definition
| statement_assign
| statement_expression
) ~ LINE_END
) ~ NEWLINE*
}

View File

@ -131,6 +131,7 @@ pub enum Statement<F: Field + PrimeField> {
Conditional(ConditionalStatement<F>),
For(Variable<F>, Integer, Integer, Vec<Statement<F>>),
AssertEq(Expression<F>, Expression<F>),
Expression(Expression<F>),
}
#[derive(Clone, Debug, PartialEq, Eq)]

View File

@ -212,6 +212,7 @@ impl<F: Field + PrimeField> fmt::Display for Statement<F> {
Statement::AssertEq(ref left, ref right) => {
write!(f, "assert_eq({}, {});", left, right)
}
Statement::Expression(ref expression) => write!(f, "{};", expression),
}
}
}

View File

@ -532,6 +532,12 @@ impl<'ast, F: Field + PrimeField> From<ast::AssertStatement<'ast>> for types::St
}
}
impl<'ast, F: Field + PrimeField> From<ast::ExpressionStatement<'ast>> for types::Statement<F> {
fn from(statement: ast::ExpressionStatement<'ast>) -> Self {
types::Statement::Expression(types::Expression::from(statement.expression))
}
}
impl<'ast, F: Field + PrimeField> From<ast::Statement<'ast>> for types::Statement<F> {
fn from(statement: ast::Statement<'ast>) -> Self {
match statement {
@ -544,6 +550,7 @@ impl<'ast, F: Field + PrimeField> From<ast::Statement<'ast>> for types::Statemen
}
ast::Statement::Iteration(statement) => types::Statement::from(statement),
ast::Statement::Assert(statement) => types::Statement::from(statement),
ast::Statement::Expression(statement) => types::Statement::from(statement),
}
}
}