aiken/crates/aiken-lang/src/gen_uplc/builder.rs

1965 lines
65 KiB
Rust

use std::{rc::Rc, sync::Arc};
use indexmap::{IndexMap, IndexSet};
use itertools::Itertools;
use uplc::{
ast::{Constant as UplcConstant, Name, Term, Type as UplcType},
builder::{CONSTR_FIELDS_EXPOSER, CONSTR_INDEX_EXPOSER},
builtins::DefaultFunction,
machine::{
runtime::{convert_constr_to_tag, ANY_TAG},
value::to_pallas_bigint,
},
Constr, KeyValuePairs, PlutusData,
};
use crate::{
ast::{
AssignmentKind, BinOp, ClauseGuard, Constant, DataType, Pattern, Span, TypedArg,
TypedClause, TypedDataType, UnOp,
},
expr::TypedExpr,
tipo::{PatternConstructor, Type, TypeVar, ValueConstructorVariant},
IdGenerator,
};
use super::{air::Air, scope::Scope, stack::AirStack};
#[derive(Clone, Debug)]
pub struct FuncComponents {
pub ir: Vec<Air>,
pub dependencies: Vec<FunctionAccessKey>,
pub args: Vec<String>,
pub recursive: bool,
pub defined_by_zero_arg: bool,
pub is_code_gen_func: bool,
}
#[derive(Clone, Eq, Debug, PartialEq, Hash)]
pub struct ConstrFieldKey {
pub local_var: String,
pub field_name: String,
}
#[derive(Clone, Debug, Eq, PartialEq, Hash)]
pub struct DataTypeKey {
pub module_name: String,
pub defined_type: String,
}
pub type ConstrUsageKey = String;
#[derive(Clone, Debug, Eq, PartialEq, Hash, Ord, PartialOrd)]
pub struct FunctionAccessKey {
pub module_name: String,
pub function_name: String,
pub variant_name: String,
}
#[derive(Clone, Debug)]
pub struct AssignmentProperties {
pub value_type: Arc<Type>,
pub kind: AssignmentKind,
}
#[derive(Clone, Debug)]
pub enum ClauseProperties {
ConstrClause {
clause_var_name: String,
needs_constr_var: bool,
is_complex_clause: bool,
original_subject_name: String,
final_clause: bool,
},
ListClause {
clause_var_name: String,
needs_constr_var: bool,
is_complex_clause: bool,
original_subject_name: String,
current_index: i64,
final_clause: bool,
},
TupleClause {
clause_var_name: String,
needs_constr_var: bool,
is_complex_clause: bool,
original_subject_name: String,
defined_tuple_indices: IndexSet<(usize, String)>,
final_clause: bool,
},
}
impl ClauseProperties {
pub fn init(t: &Arc<Type>, constr_var: String, subject_name: String) -> Self {
if t.is_list() {
ClauseProperties::ListClause {
clause_var_name: constr_var,
needs_constr_var: false,
is_complex_clause: false,
original_subject_name: subject_name,
current_index: -1,
final_clause: false,
}
} else if t.is_tuple() {
ClauseProperties::TupleClause {
clause_var_name: constr_var,
needs_constr_var: false,
is_complex_clause: false,
original_subject_name: subject_name,
defined_tuple_indices: IndexSet::new(),
final_clause: false,
}
} else {
ClauseProperties::ConstrClause {
clause_var_name: constr_var,
needs_constr_var: false,
is_complex_clause: false,
original_subject_name: subject_name,
final_clause: false,
}
}
}
pub fn is_complex_clause(&mut self) -> &mut bool {
match self {
ClauseProperties::ConstrClause {
is_complex_clause, ..
}
| ClauseProperties::ListClause {
is_complex_clause, ..
}
| ClauseProperties::TupleClause {
is_complex_clause, ..
} => is_complex_clause,
}
}
pub fn needs_constr_var(&mut self) -> &mut bool {
match self {
ClauseProperties::ConstrClause {
needs_constr_var, ..
}
| ClauseProperties::ListClause {
needs_constr_var, ..
}
| ClauseProperties::TupleClause {
needs_constr_var, ..
} => needs_constr_var,
}
}
pub fn is_final_clause(&mut self) -> &mut bool {
match self {
ClauseProperties::ConstrClause { final_clause, .. }
| ClauseProperties::ListClause { final_clause, .. }
| ClauseProperties::TupleClause { final_clause, .. } => final_clause,
}
}
pub fn clause_var_name(&mut self) -> &mut String {
match self {
ClauseProperties::ConstrClause {
clause_var_name, ..
}
| ClauseProperties::ListClause {
clause_var_name, ..
}
| ClauseProperties::TupleClause {
clause_var_name, ..
} => clause_var_name,
}
}
pub fn original_subject_name(&mut self) -> &mut String {
match self {
ClauseProperties::ConstrClause {
original_subject_name,
..
}
| ClauseProperties::ListClause {
original_subject_name,
..
}
| ClauseProperties::TupleClause {
original_subject_name,
..
} => original_subject_name,
}
}
}
pub fn convert_type_to_data(term: Term<Name>, field_type: &Arc<Type>) -> Term<Name> {
if field_type.is_bytearray() {
Term::b_data().apply(term)
} else if field_type.is_int() {
Term::i_data().apply(term)
} else if field_type.is_void() {
term.choose_unit(Term::Constant(
UplcConstant::Data(PlutusData::Constr(Constr {
tag: convert_constr_to_tag(0).unwrap(),
any_constructor: None,
fields: vec![],
}))
.into(),
))
} else if field_type.is_map() {
Term::map_data().apply(term)
} else if field_type.is_string() {
Term::b_data().apply(Term::Builtin(DefaultFunction::EncodeUtf8).apply(term))
} else if field_type.is_tuple() && matches!(field_type.get_uplc_type(), UplcType::Pair(_, _)) {
Term::list_data()
.apply(
Term::mk_cons()
.apply(Term::fst_pair().apply(Term::var("__pair")))
.apply(
Term::mk_cons()
.apply(Term::snd_pair().apply(Term::var("__pair")))
.apply(Term::empty_list()),
),
)
.lambda("__pair")
.apply(term)
} else if field_type.is_list() || field_type.is_tuple() {
Term::list_data().apply(term)
} else if field_type.is_bool() {
term.if_else(
Term::Constant(
UplcConstant::Data(PlutusData::Constr(Constr {
tag: convert_constr_to_tag(1).unwrap(),
any_constructor: None,
fields: vec![],
}))
.into(),
),
Term::Constant(
UplcConstant::Data(PlutusData::Constr(Constr {
tag: convert_constr_to_tag(0).unwrap(),
any_constructor: None,
fields: vec![],
}))
.into(),
),
)
} else {
term
}
}
pub fn convert_data_to_type(term: Term<Name>, field_type: &Arc<Type>) -> Term<Name> {
if field_type.is_int() {
Term::un_i_data().apply(term)
} else if field_type.is_bytearray() {
Term::un_b_data().apply(term)
} else if field_type.is_void() {
Term::equals_integer()
.apply(Term::integer(0.into()))
.apply(Term::fst_pair().apply(Term::unconstr_data().apply(term)))
.delayed_if_else(Term::unit(), Term::Error)
} else if field_type.is_map() {
Term::unmap_data().apply(term)
} else if field_type.is_string() {
Term::Builtin(DefaultFunction::DecodeUtf8).apply(Term::un_b_data().apply(term))
} else if field_type.is_tuple() && matches!(field_type.get_uplc_type(), UplcType::Pair(_, _)) {
Term::mk_pair_data()
.apply(Term::head_list().apply(Term::var("__list_data")))
.apply(Term::head_list().apply(Term::var("__tail")))
.lambda("__tail")
.apply(Term::tail_list().apply(Term::var("__list_data")))
.lambda("__list_data")
.apply(Term::unlist_data().apply(term))
} else if field_type.is_list() || field_type.is_tuple() {
Term::unlist_data().apply(term)
} else if field_type.is_bool() {
Term::equals_integer()
.apply(Term::integer(1.into()))
.apply(Term::fst_pair().apply(Term::unconstr_data().apply(term)))
} else {
term
}
}
pub fn rearrange_clauses(clauses: Vec<TypedClause>) -> Vec<TypedClause> {
let mut sorted_clauses = clauses;
// if we have a list sort clauses so we can plug holes for cases not covered by clauses
// TODO: while having 10000000 element list is impossible to destructure in plutus budget,
// let's sort clauses by a safer manner
// TODO: how shall tails be weighted? Since any clause after will not run
sorted_clauses.sort_by(|clause1, clause2| {
let clause1_len = match &clause1.pattern {
Pattern::List { elements, tail, .. } => {
elements.len() * 3
+ usize::from(tail.is_some())
+ usize::from(clause1.guard.is_some())
}
_ => 10000000,
};
let clause2_len = match &clause2.pattern {
Pattern::List { elements, tail, .. } => elements.len() + usize::from(tail.is_some()),
_ => 10000001,
};
clause1_len.cmp(&clause2_len)
});
let mut elems_len = 0;
let mut final_clauses = sorted_clauses.clone();
let mut holes_to_fill = vec![];
let mut assign_plug_in_name = None;
let mut last_clause_index = 0;
let mut last_clause_set = false;
// If we have a catch all, use that. Otherwise use todo which will result in error
// TODO: fill in todo label with description
let plug_in_then = if sorted_clauses[sorted_clauses.len() - 1].guard.is_none() {
match &sorted_clauses[sorted_clauses.len() - 1].pattern {
Pattern::Var { name, .. } => {
assign_plug_in_name = Some(name);
sorted_clauses[sorted_clauses.len() - 1].clone().then
}
Pattern::Discard { .. } => sorted_clauses[sorted_clauses.len() - 1].clone().then,
_ => {
let tipo = sorted_clauses[sorted_clauses.len() - 1].then.tipo();
TypedExpr::Trace {
location: Span::empty(),
tipo: tipo.clone(),
text: Box::new(TypedExpr::String {
location: Span::empty(),
tipo: crate::builtins::string(),
value: "Clause not filled".to_string(),
}),
then: Box::new(TypedExpr::ErrorTerm {
location: Span::empty(),
tipo,
}),
}
}
}
} else {
let tipo = sorted_clauses[sorted_clauses.len() - 1].then.tipo();
TypedExpr::Trace {
location: Span::empty(),
tipo: tipo.clone(),
text: Box::new(TypedExpr::String {
location: Span::empty(),
tipo: crate::builtins::string(),
value: "Clause not filled".to_string(),
}),
then: Box::new(TypedExpr::ErrorTerm {
location: Span::empty(),
tipo,
}),
}
};
for (index, clause) in sorted_clauses.iter().enumerate() {
if let Pattern::List { elements, .. } = &clause.pattern {
// found a hole and now we plug it
while elems_len < elements.len() {
let mut discard_elems = vec![];
for _ in 0..elems_len {
discard_elems.push(Pattern::Discard {
name: "_".to_string(),
location: Span::empty(),
});
}
// If we have a named catch all then in scope the name and create list of discards, otherwise list of discards
let clause_to_fill = if let Some(name) = assign_plug_in_name {
TypedClause {
location: Span::empty(),
pattern: Pattern::Assign {
name: name.clone(),
location: Span::empty(),
pattern: Pattern::List {
location: Span::empty(),
elements: discard_elems,
tail: None,
}
.into(),
},
guard: None,
then: plug_in_then.clone(),
}
} else {
TypedClause {
location: Span::empty(),
pattern: Pattern::List {
location: Span::empty(),
elements: discard_elems,
tail: None,
},
guard: None,
then: plug_in_then.clone(),
}
};
holes_to_fill.push((index, clause_to_fill));
elems_len += 1;
}
}
// if we have a pattern with no clause guards and a tail then no lists will get past here to other clauses
if clause.guard.is_none() {
match &clause.pattern {
Pattern::Var { .. } => {
last_clause_index = index + 1;
last_clause_set = true;
}
Pattern::Discard { .. } => {
last_clause_index = index + 1;
last_clause_set = true;
}
Pattern::List {
elements,
tail: Some(tail),
..
} => {
let mut elements = elements.clone();
elements.push(*tail.clone());
if elements.iter().all(|element| {
matches!(element, Pattern::Var { .. } | Pattern::Discard { .. })
}) && !last_clause_set
&& !elements.is_empty()
{
last_clause_index = index + 1;
last_clause_set = true;
}
}
_ => {}
}
}
// If the last condition doesn't have a catch all or tail then add a catch all with a todo
if index == sorted_clauses.len() - 1 {
if let Pattern::List { tail: None, .. } = &clause.pattern {
final_clauses.push(TypedClause {
location: Span::empty(),
pattern: Pattern::Discard {
name: "_".to_string(),
location: Span::empty(),
},
guard: None,
then: plug_in_then.clone(),
});
}
}
elems_len += 1;
}
// Encountered a tail so stop there with that as last clause
if last_clause_set {
final_clauses = final_clauses[0..last_clause_index].to_vec();
}
// insert hole fillers into clauses
for (index, clause) in holes_to_fill.into_iter().rev() {
final_clauses.insert(index, clause);
}
final_clauses
}
#[allow(clippy::too_many_arguments)]
pub fn list_access_to_uplc(
names: &[String],
id_list: &[u64],
tail: bool,
current_index: usize,
term: Term<Name>,
tipos: Vec<Arc<Type>>,
check_last_item: bool,
is_list_accessor: bool,
) -> Term<Name> {
if let Some((first, names)) = names.split_first() {
let (current_tipo, tipos) = tipos.split_first().unwrap();
let head_list =
if matches!(current_tipo.get_uplc_type(), UplcType::Pair(_, _)) && is_list_accessor {
Term::head_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
)))
} else {
convert_data_to_type(
Term::head_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))),
&current_tipo.to_owned(),
)
};
if names.len() == 1 && tail {
if first == "_" && names[0] == "_" {
term.lambda("_")
} else if first == "_" {
term.lambda(names[0].clone())
.apply(Term::tail_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))))
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
} else if names[0] == "_" {
term.lambda(first.clone()).apply(head_list).lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
} else {
term.lambda(names[0].clone())
.apply(Term::tail_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))))
.lambda(first.clone())
.apply(head_list)
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
}
} else if names.is_empty() {
if first == "_" {
if check_last_item {
Term::tail_list()
.apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
)))
.delayed_choose_list(
term,
Term::Error.trace(Term::string(
"List/Tuple/Constr contains more items than expected",
)),
)
} else {
term
}
.lambda(if check_last_item {
format!("tail_index_{}_{}", current_index, id_list[current_index])
} else {
"_".to_string()
})
} else {
if check_last_item {
Term::tail_list()
.apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
)))
.delayed_choose_list(
term,
Term::Error.trace(Term::string(
"List/Tuple/Constr contains more items than expected",
)),
)
} else {
term
}
.lambda(first.clone())
.apply(head_list)
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
}
} else if first == "_" {
let mut list_access_inner = list_access_to_uplc(
names,
id_list,
tail,
current_index + 1,
term,
tipos.to_owned(),
check_last_item,
is_list_accessor,
);
list_access_inner = match &list_access_inner {
Term::Lambda {
parameter_name,
body,
} => {
if &parameter_name.text == "_" {
body.as_ref().clone()
} else {
list_access_inner
.apply(Term::tail_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))))
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
}
}
_ => list_access_inner,
};
match &list_access_inner {
Term::Lambda { .. } => list_access_inner,
_ => list_access_inner.lambda("_"),
}
} else {
let mut list_access_inner = list_access_to_uplc(
names,
id_list,
tail,
current_index + 1,
term,
tipos.to_owned(),
check_last_item,
is_list_accessor,
);
list_access_inner = match &list_access_inner {
Term::Lambda {
parameter_name,
body,
} => {
if &parameter_name.text == "_" {
body.as_ref()
.clone()
.lambda(first.clone())
.apply(head_list)
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
} else {
list_access_inner
.apply(Term::tail_list().apply(Term::var(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))))
.lambda(first.clone())
.apply(head_list)
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
))
}
}
_ => list_access_inner
.lambda(first.clone())
.apply(head_list)
.lambda(format!(
"tail_index_{}_{}",
current_index, id_list[current_index]
)),
};
list_access_inner
}
} else {
term
}
}
pub fn check_when_pattern_needs(
pattern: &Pattern<PatternConstructor, Arc<Type>>,
clause_properties: &mut ClauseProperties,
) {
match pattern {
Pattern::Var { .. } => {
*clause_properties.needs_constr_var() = true;
}
Pattern::List { elements, tail, .. } => {
*clause_properties.needs_constr_var() = true;
*clause_properties.is_complex_clause() = true;
for element in elements {
check_when_pattern_needs(element, clause_properties);
}
if let Some(tail) = tail {
check_when_pattern_needs(tail, clause_properties);
}
}
Pattern::Tuple { elems, .. } => {
*clause_properties.needs_constr_var() = true;
*clause_properties.is_complex_clause() = true;
for element in elems {
check_when_pattern_needs(element, clause_properties);
}
}
Pattern::Int { .. } => {
*clause_properties.needs_constr_var() = true;
*clause_properties.is_complex_clause() = true;
}
Pattern::Constructor { arguments, .. } => {
*clause_properties.needs_constr_var() = true;
*clause_properties.is_complex_clause() = true;
for argument in arguments {
check_when_pattern_needs(&argument.value, clause_properties);
}
}
Pattern::Discard { .. } => {
*clause_properties.needs_constr_var() = true;
}
Pattern::Assign { pattern, .. } => {
*clause_properties.needs_constr_var() = true;
check_when_pattern_needs(pattern, clause_properties)
}
}
}
pub fn constants_ir(literal: &Constant, ir_stack: &mut AirStack) {
match literal {
Constant::Int { value, .. } => {
ir_stack.integer(value.clone());
}
Constant::String { value, .. } => {
ir_stack.string(value.clone());
}
Constant::ByteArray { bytes, .. } => {
ir_stack.byte_array(bytes.clone());
}
};
}
pub fn match_ir_for_recursion(
ir: Air,
insert_var_vec: &mut Vec<(usize, Air)>,
function_access_key: &FunctionAccessKey,
index: usize,
) {
if let Air::Var {
scope,
constructor,
variant_name,
..
} = ir
{
if let ValueConstructorVariant::ModuleFn {
name: func_name,
module,
..
} = constructor.clone().variant
{
let var_func_access = FunctionAccessKey {
module_name: module,
function_name: func_name.clone(),
variant_name: variant_name.clone(),
};
if function_access_key.clone() == var_func_access {
insert_var_vec.push((
index,
Air::Var {
scope,
constructor,
name: func_name,
variant_name,
},
));
}
}
}
}
pub fn find_and_replace_generics(tipo: &mut Arc<Type>, mono_types: &IndexMap<u64, Arc<Type>>) {
if let Some(id) = tipo.get_generic() {
// If a generic does not have a type we know of
// like a None in option then just use same type
*tipo = mono_types.get(&id).unwrap_or(tipo).clone();
} else if tipo.is_generic() {
match &**tipo {
Type::App {
args,
public,
module,
name,
} => {
let mut new_args = vec![];
for arg in args {
let mut arg = arg.clone();
find_and_replace_generics(&mut arg, mono_types);
new_args.push(arg);
}
let t = Type::App {
args: new_args,
public: *public,
module: module.clone(),
name: name.clone(),
};
*tipo = t.into();
}
Type::Fn { args, ret } => {
let mut new_args = vec![];
for arg in args {
let mut arg = arg.clone();
find_and_replace_generics(&mut arg, mono_types);
new_args.push(arg);
}
let mut ret = ret.clone();
find_and_replace_generics(&mut ret, mono_types);
let t = Type::Fn {
args: new_args,
ret,
};
*tipo = t.into();
}
Type::Tuple { elems } => {
let mut new_elems = vec![];
for elem in elems {
let mut elem = elem.clone();
find_and_replace_generics(&mut elem, mono_types);
new_elems.push(elem);
}
let t = Type::Tuple { elems: new_elems };
*tipo = t.into();
}
Type::Var { tipo: var_tipo } => {
let var_type = var_tipo.as_ref().borrow().clone();
let var_tipo = match var_type {
TypeVar::Link { tipo } => {
let mut tipo = tipo;
find_and_replace_generics(&mut tipo, mono_types);
tipo
}
TypeVar::Generic { .. } | TypeVar::Unbound { .. } => unreachable!(),
};
*tipo = var_tipo;
}
};
}
}
pub fn get_generic_id_and_type(tipo: &Type, param: &Type) -> Vec<(u64, Arc<Type>)> {
let mut generics_ids = vec![];
if let Some(id) = tipo.get_generic() {
generics_ids.push((id, param.clone().into()));
return generics_ids;
}
for (tipo, param_type) in tipo
.get_inner_types()
.iter()
.zip(param.get_inner_types().iter())
{
generics_ids.append(&mut get_generic_id_and_type(tipo, param_type));
}
generics_ids
}
pub fn get_variant_name(new_name: &mut String, t: &Arc<Type>) {
new_name.push_str(&if t.is_string() {
"_string".to_string()
} else if t.is_int() {
"_int".to_string()
} else if t.is_bool() {
"_bool".to_string()
} else if t.is_bytearray() {
"_bytearray".to_string()
} else if t.is_map() {
let mut full_type = "_map".to_string();
let pair_type = &t.get_inner_types()[0];
let fst_type = &pair_type.get_inner_types()[0];
let snd_type = &pair_type.get_inner_types()[1];
get_variant_name(&mut full_type, fst_type);
get_variant_name(&mut full_type, snd_type);
full_type
} else if t.is_list() {
let mut full_type = "_list".to_string();
let list_type = &t.get_inner_types()[0];
get_variant_name(&mut full_type, list_type);
full_type
} else if t.is_tuple() {
let mut full_type = "_tuple".to_string();
let inner_types = t.get_inner_types();
for arg_type in inner_types {
get_variant_name(&mut full_type, &arg_type);
}
full_type
} else if t.is_unbound() {
"_unbound".to_string()
} else {
let mut full_type = "_data".to_string();
if t.is_generic() {
panic!("FOUND A POLYMORPHIC TYPE. EXPECTED MONOMORPHIC TYPE");
}
let inner_types = t.get_inner_types();
for arg_type in inner_types {
get_variant_name(&mut full_type, &arg_type);
}
full_type
});
}
pub fn convert_constants_to_data(constants: Vec<Rc<UplcConstant>>) -> Vec<UplcConstant> {
let mut new_constants = vec![];
for constant in constants {
let constant = match constant.as_ref() {
UplcConstant::Integer(i) => UplcConstant::Data(PlutusData::BigInt(to_pallas_bigint(i))),
UplcConstant::ByteString(b) => {
UplcConstant::Data(PlutusData::BoundedBytes(b.clone().try_into().unwrap()))
}
UplcConstant::String(s) => UplcConstant::Data(PlutusData::BoundedBytes(
s.as_bytes().to_vec().try_into().unwrap(),
)),
UplcConstant::Bool(b) => UplcConstant::Data(PlutusData::Constr(Constr {
tag: convert_constr_to_tag((*b).into()).unwrap_or(ANY_TAG),
any_constructor: convert_constr_to_tag((*b).into())
.map_or(Some((*b).into()), |_| None),
fields: vec![],
})),
UplcConstant::ProtoList(_, constants) => {
let inner_constants =
convert_constants_to_data(constants.iter().cloned().map(Rc::new).collect())
.into_iter()
.map(|constant| match constant {
UplcConstant::Data(d) => d,
_ => todo!(),
})
.collect_vec();
UplcConstant::Data(PlutusData::Array(inner_constants))
}
UplcConstant::ProtoPair(_, _, left, right) => {
let inner_constants = vec![left.clone(), right.clone()];
let inner_constants = convert_constants_to_data(inner_constants)
.into_iter()
.map(|constant| match constant {
UplcConstant::Data(d) => d,
_ => todo!(),
})
.collect_vec();
UplcConstant::Data(PlutusData::Map(KeyValuePairs::Def(vec![(
inner_constants[0].clone(),
inner_constants[1].clone(),
)])))
}
d @ UplcConstant::Data(_) => d.clone(),
UplcConstant::Unit => UplcConstant::Data(PlutusData::Constr(Constr {
tag: convert_constr_to_tag(0).unwrap(),
any_constructor: None,
fields: vec![],
})),
};
new_constants.push(constant);
}
new_constants
}
pub fn wrap_validator_args(term: Term<Name>, arguments: &[TypedArg]) -> Term<Name> {
let mut term = term;
for arg in arguments.iter().rev() {
if !matches!(arg.tipo.get_uplc_type(), UplcType::Data) {
term = term
.lambda(arg.arg_name.get_variable_name().unwrap_or("_"))
.apply(convert_data_to_type(
Term::var(arg.arg_name.get_variable_name().unwrap_or("_")),
&arg.tipo,
));
}
term = term.lambda(arg.arg_name.get_variable_name().unwrap_or("_"))
}
term
}
pub fn wrap_as_multi_validator(spend: Term<Name>, mint: Term<Name>) -> Term<Name> {
Term::equals_integer()
.apply(Term::integer(0.into()))
.apply(Term::var(CONSTR_INDEX_EXPOSER).apply(Term::var("__second_arg")))
.delayed_if_else(
mint.apply(Term::var("__first_arg"))
.apply(Term::var("__second_arg")),
spend.apply(Term::var("__first_arg")).apply(
Term::head_list()
.apply(Term::var(CONSTR_FIELDS_EXPOSER).apply(Term::var("__second_arg"))),
),
)
.lambda("__second_arg")
.lambda("__first_arg")
}
pub fn monomorphize(
ir: Vec<Air>,
mono_types: IndexMap<u64, Arc<Type>>,
full_type: &Arc<Type>,
) -> (String, Vec<Air>) {
let mut new_air = ir.clone();
let mut new_name = String::new();
let mut needs_variant = false;
for (index, ir) in ir.into_iter().enumerate() {
match ir {
Air::Var {
constructor,
scope,
name,
..
} => {
if constructor.tipo.is_generic() {
let mut tipo = constructor.tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
let mut variant = String::new();
let mut constructor = constructor.clone();
constructor.tipo = tipo;
if let Type::Fn { args, .. } = &*constructor.tipo {
if matches!(
constructor.variant,
ValueConstructorVariant::ModuleFn { .. }
) {
for arg in args {
get_variant_name(&mut variant, arg);
}
}
}
new_air[index] = Air::Var {
scope,
constructor,
name,
variant_name: variant,
};
needs_variant = true;
}
}
Air::List {
tipo,
scope,
count,
tail,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::List {
scope,
count,
tipo,
tail,
};
needs_variant = true;
}
}
Air::ListAccessor {
scope,
tipo,
names,
tail,
check_last_item,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ListAccessor {
scope,
names,
tipo,
tail,
check_last_item,
};
needs_variant = true;
}
}
Air::ListExpose {
scope,
tipo,
tail_head_names,
tail,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ListExpose {
scope,
tail_head_names,
tipo,
tail,
};
needs_variant = true;
}
}
Air::BinOp { scope, name, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::BinOp { scope, name, tipo };
needs_variant = true;
}
}
Air::Builtin {
scope,
func,
tipo,
count,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Builtin {
scope,
func,
tipo,
count,
};
needs_variant = true;
}
}
Air::UnWrapData { scope, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::UnWrapData { scope, tipo };
needs_variant = true;
}
}
Air::WrapData { scope, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::WrapData { scope, tipo };
needs_variant = true;
}
}
Air::When {
scope,
tipo,
subject_name,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::When {
scope,
subject_name,
tipo,
};
needs_variant = true;
}
}
Air::Clause {
scope,
tipo,
subject_name,
complex_clause,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Clause {
scope,
tipo,
subject_name,
complex_clause,
};
needs_variant = true;
}
}
Air::ListClause {
scope,
tipo,
tail_name,
complex_clause,
next_tail_name,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ListClause {
scope,
tipo,
tail_name,
complex_clause,
next_tail_name,
};
needs_variant = true;
}
}
Air::TupleClause {
scope,
tipo,
indices,
predefined_indices,
subject_name,
count,
complex_clause,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::TupleClause {
scope,
tipo,
indices,
predefined_indices,
subject_name,
count,
complex_clause,
};
needs_variant = true;
}
}
Air::ClauseGuard {
tipo,
scope,
subject_name,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ClauseGuard {
scope,
subject_name,
tipo,
};
needs_variant = true;
}
}
Air::ListClauseGuard {
scope,
tipo,
tail_name,
next_tail_name,
inverse,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ListClauseGuard {
scope,
tipo,
tail_name,
next_tail_name,
inverse,
};
needs_variant = true;
}
}
Air::Tuple { scope, tipo, count } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Tuple { scope, tipo, count };
needs_variant = true;
}
}
Air::TupleIndex {
scope,
tipo,
tuple_index,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::TupleIndex {
scope,
tipo,
tuple_index,
};
needs_variant = true;
}
}
Air::ErrorTerm { scope, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::ErrorTerm { scope, tipo };
needs_variant = true;
}
}
Air::Trace { scope, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Trace { scope, tipo };
needs_variant = true;
}
}
Air::Record {
scope,
tag: constr_index,
tipo,
count,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Record {
scope,
tipo,
tag: constr_index,
count,
};
needs_variant = true;
}
}
Air::RecordAccess {
scope,
record_index,
tipo,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::RecordAccess {
scope,
record_index,
tipo,
};
needs_variant = true;
}
}
Air::FieldsExpose {
scope,
indices,
check_last_item,
} => {
let mut new_indices = vec![];
for (ind, name, tipo) in indices {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
needs_variant = true;
new_indices.push((ind, name, tipo));
} else {
new_indices.push((ind, name, tipo));
}
}
new_air[index] = Air::FieldsExpose {
scope,
indices: new_indices,
check_last_item,
};
}
Air::RecordUpdate {
scope,
highest_index,
indices,
tipo,
} => {
let mut new_indices = vec![];
let mut tipo = tipo.clone();
for (ind, tipo) in indices {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
needs_variant = true;
new_indices.push((ind, tipo));
} else {
new_indices.push((ind, tipo));
}
}
if tipo.is_generic() {
find_and_replace_generics(&mut tipo, &mono_types);
}
new_air[index] = Air::RecordUpdate {
scope,
highest_index,
indices: new_indices,
tipo,
};
}
Air::TupleAccessor {
scope,
names,
tipo,
check_last_item,
} => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::TupleAccessor {
scope,
names,
tipo,
check_last_item,
};
needs_variant = true;
}
}
Air::Call { scope, count, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::Call { scope, count, tipo };
needs_variant = true;
}
}
Air::If { scope, tipo } => {
if tipo.is_generic() {
let mut tipo = tipo.clone();
find_and_replace_generics(&mut tipo, &mono_types);
new_air[index] = Air::If { scope, tipo };
needs_variant = true;
}
}
_ => {}
}
}
if let Type::Fn { args, .. } = &**full_type {
if needs_variant {
for arg in args {
get_variant_name(&mut new_name, arg);
}
}
}
(new_name, new_air)
}
#[allow(clippy::too_many_arguments)]
pub fn handle_func_dependencies(
dependencies_ir: &mut Vec<Air>,
function_component: &FuncComponents,
func_components: &IndexMap<FunctionAccessKey, FuncComponents>,
defined_functions: &mut IndexMap<FunctionAccessKey, ()>,
func_index_map: &IndexMap<FunctionAccessKey, Scope>,
func_scope: &Scope,
to_be_defined: &mut IndexMap<FunctionAccessKey, ()>,
id_gen: Rc<IdGenerator>,
) {
let function_component = function_component.clone();
let mut function_dependency_order = function_component
.dependencies
.iter()
.unique()
.cloned()
.collect_vec();
let mut dependency_map = IndexMap::new();
let mut dependency_vec = vec![];
// deal with function dependencies by sorting order in which we pop them.
while let Some(dependency) = function_dependency_order.pop() {
let depend_comp = func_components.get(&dependency).unwrap();
if dependency_map.contains_key(&dependency) {
dependency_map.shift_remove(&dependency);
}
function_dependency_order.extend(depend_comp.dependencies.clone());
dependency_map.insert(dependency, ());
}
dependency_vec.extend(dependency_map.keys().cloned());
dependency_vec.reverse();
while let Some(dependency) = dependency_vec.pop() {
let func_component_dep = func_components.get(&dependency);
if defined_functions.contains_key(&dependency) {
continue;
}
let Some(depend_comp) = func_component_dep else {continue};
let dep_scope = func_index_map
.get(&dependency)
.unwrap_or_else(|| unreachable!());
if (dep_scope.common_ancestor(func_scope) == *func_scope && !depend_comp.args.is_empty())
|| function_component.args.is_empty()
{
let mut recursion_ir = vec![];
handle_recursion_ir(&dependency, depend_comp, &mut recursion_ir);
let mut temp_stack = AirStack {
id_gen: id_gen.clone(),
scope: func_scope.clone(),
air: vec![],
};
let recursion_stack = AirStack {
id_gen: id_gen.clone(),
scope: func_scope.clone(),
air: recursion_ir,
};
if depend_comp.is_code_gen_func {
temp_stack = recursion_stack;
} else {
temp_stack.define_func(
dependency.function_name.clone(),
dependency.module_name.clone(),
dependency.variant_name.clone(),
depend_comp.args.clone(),
depend_comp.recursive,
recursion_stack,
);
}
let mut temp_ir = temp_stack.complete();
temp_ir.append(dependencies_ir);
*dependencies_ir = temp_ir;
if dep_scope.common_ancestor(func_scope) == *func_scope {
defined_functions.insert(dependency, ());
}
} else if depend_comp.args.is_empty() {
to_be_defined.insert(dependency, ());
}
}
}
pub fn handle_recursion_ir(
func_key: &FunctionAccessKey,
func_comp: &FuncComponents,
recursion_ir: &mut Vec<Air>,
) {
let mut insert_var_vec = vec![];
for (index, ir) in func_comp.ir.iter().enumerate().rev() {
match_ir_for_recursion(
ir.clone(),
&mut insert_var_vec,
&FunctionAccessKey {
function_name: func_key.function_name.clone(),
module_name: func_key.module_name.clone(),
variant_name: func_key.variant_name.clone(),
},
index,
);
}
*recursion_ir = func_comp.ir.clone();
// Deals with self recursive function
for (index, ir) in insert_var_vec.clone() {
recursion_ir.insert(index, ir);
let current_call = recursion_ir[index - 1].clone();
match current_call {
Air::Call { scope, count, tipo } => {
recursion_ir[index - 1] = Air::Call {
scope,
count: count + 1,
tipo,
}
}
_ => unreachable!("Will support not using call right away later."),
}
}
}
pub fn lookup_data_type_by_tipo(
data_types: IndexMap<DataTypeKey, &TypedDataType>,
tipo: &Type,
) -> Option<DataType<Arc<Type>>> {
match tipo {
Type::Fn { ret, .. } => match ret.as_ref() {
Type::App { module, name, .. } => {
let data_type_key = DataTypeKey {
module_name: module.clone(),
defined_type: name.clone(),
};
data_types.get(&data_type_key).map(|item| (*item).clone())
}
_ => None,
},
Type::App { module, name, .. } => {
let data_type_key = DataTypeKey {
module_name: module.clone(),
defined_type: name.clone(),
};
data_types.get(&data_type_key).map(|item| (*item).clone())
}
Type::Var { tipo } => {
if let TypeVar::Link { tipo } = &*tipo.borrow() {
lookup_data_type_by_tipo(data_types, tipo)
} else {
None
}
}
_ => None,
}
}
pub fn check_replaceable_opaque_type(
t: &Arc<Type>,
data_types: &IndexMap<DataTypeKey, &TypedDataType>,
) -> bool {
let data_type = lookup_data_type_by_tipo(data_types.clone(), t);
if let Some(data_type) = data_type {
let data_type_args = data_type.constructors[0].arguments.clone();
data_type_args.len() == 1 && data_type.opaque && data_type.constructors.len() == 1
} else {
false
}
}
pub fn replace_opaque_type(t: &mut Arc<Type>, data_types: IndexMap<DataTypeKey, &TypedDataType>) {
if check_replaceable_opaque_type(t, &data_types) && matches!(&**t, Type::App { .. }) {
let data_type = lookup_data_type_by_tipo(data_types.clone(), t).unwrap();
let new_type_fields = data_type.typed_parameters.clone();
let mut mono_types: IndexMap<u64, Arc<Type>> = IndexMap::new();
for (tipo, param) in new_type_fields.iter().zip(t.arg_types().unwrap()) {
let mut map = mono_types.into_iter().collect_vec();
map.append(&mut get_generic_id_and_type(tipo, &param));
mono_types = map.into_iter().collect();
}
let mut generic_type = data_type.constructors[0].arguments[0].tipo.clone();
find_and_replace_generics(&mut generic_type, &mono_types);
replace_opaque_type(&mut generic_type, data_types.clone());
*t = generic_type;
} else {
match (**t).clone() {
Type::App {
public,
module,
name,
args,
} => {
let mut new_args = vec![];
for arg in args {
let mut new_arg_type = arg.clone();
replace_opaque_type(&mut new_arg_type, data_types.clone());
new_args.push(new_arg_type);
}
*t = Type::App {
public,
module,
name,
args: new_args,
}
.into();
}
Type::Fn { args, ret } => {
let mut new_args = vec![];
for arg in args {
let mut new_arg_type = arg.clone();
replace_opaque_type(&mut new_arg_type, data_types.clone());
new_args.push(new_arg_type);
}
let mut new_ret = ret;
replace_opaque_type(&mut new_ret, data_types.clone());
*t = Type::Fn {
args: new_args,
ret: new_ret,
}
.into();
}
Type::Var { tipo } => {
if let TypeVar::Link { tipo } = &*tipo.borrow() {
let mut new_type = tipo.clone();
replace_opaque_type(&mut new_type, data_types.clone());
*t = new_type;
}
}
Type::Tuple { elems } => {
let mut new_elems = vec![];
for arg in elems {
let mut new_arg_type = arg.clone();
replace_opaque_type(&mut new_arg_type, data_types.clone());
new_elems.push(new_arg_type);
}
*t = Type::Tuple { elems: new_elems }.into();
}
}
}
}
pub fn handle_clause_guard(
clause_guard: &ClauseGuard<Arc<Type>>,
clause_guard_stack: &mut AirStack,
) {
match clause_guard {
ClauseGuard::Not { value, .. } => {
let mut value_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(value, &mut value_stack);
clause_guard_stack.unop(UnOp::Not, value_stack);
}
ClauseGuard::Equals { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::Eq, left.tipo(), left_stack, right_stack);
}
ClauseGuard::NotEquals { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::NotEq, left.tipo(), left_stack, right_stack);
}
ClauseGuard::GtInt { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::GtInt, left.tipo(), left_stack, right_stack);
}
ClauseGuard::GtEqInt { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::GtEqInt, left.tipo(), left_stack, right_stack);
}
ClauseGuard::LtInt { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::LtInt, left.tipo(), left_stack, right_stack);
}
ClauseGuard::LtEqInt { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::LtEqInt, left.tipo(), left_stack, right_stack);
}
ClauseGuard::Or { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::Or, left.tipo(), left_stack, right_stack);
}
ClauseGuard::And { left, right, .. } => {
let mut left_stack = clause_guard_stack.empty_with_scope();
let mut right_stack = clause_guard_stack.empty_with_scope();
handle_clause_guard(left, &mut left_stack);
handle_clause_guard(right, &mut right_stack);
clause_guard_stack.binop(BinOp::And, left.tipo(), left_stack, right_stack);
}
ClauseGuard::Var { tipo, name, .. } => {
clause_guard_stack.local_var(tipo.clone(), name);
}
ClauseGuard::Constant(constant) => {
constants_ir(constant, clause_guard_stack);
}
}
}
pub fn apply_builtin_forces(mut term: Term<Name>, force_count: u32) -> Term<Name> {
for _ in 0..force_count {
term = term.force();
}
term
}
pub fn undata_builtin(
func: &DefaultFunction,
count: usize,
tipo: &Arc<Type>,
args: Vec<Term<Name>>,
) -> Term<Name> {
let mut term: Term<Name> = (*func).into();
term = apply_builtin_forces(term, func.force_count());
for arg in args {
term = term.apply(arg);
}
let temp_var = "__item_x";
if count == 0 {
term = term.apply(Term::var(temp_var));
}
term = convert_data_to_type(term, tipo);
if count == 0 {
term = term.lambda(temp_var);
}
term
}
pub fn to_data_builtin(
func: &DefaultFunction,
count: usize,
tipo: &Arc<Type>,
mut args: Vec<Term<Name>>,
) -> Term<Name> {
let mut term: Term<Name> = (*func).into();
term = apply_builtin_forces(term, func.force_count());
if count == 0 {
assert!(args.is_empty());
for arg_index in 0..func.arity() {
let temp_var = format!("__item_index_{}", arg_index);
args.push(Term::var(temp_var))
}
}
for (index, arg) in args.into_iter().enumerate() {
if index == 0 || matches!(func, DefaultFunction::MkPairData) {
term = term.apply(convert_type_to_data(arg, tipo));
} else {
term = term.apply(arg);
}
}
if count == 0 {
for arg_index in (0..func.arity()).rev() {
let temp_var = format!("__item_index_{}", arg_index);
term = term.lambda(temp_var);
}
}
term
}
pub fn special_case_builtin(
func: &DefaultFunction,
count: usize,
mut args: Vec<Term<Name>>,
) -> Term<Name> {
match func {
DefaultFunction::IfThenElse
| DefaultFunction::ChooseList
| DefaultFunction::ChooseData
| DefaultFunction::Trace => {
let mut term: Term<Name> = (*func).into();
term = apply_builtin_forces(term, func.force_count());
if count == 0 {
assert!(args.is_empty());
for arg_index in 0..func.arity() {
let temp_var = format!("__item_index_{}", arg_index);
args.push(Term::var(temp_var))
}
}
for (index, arg) in args.into_iter().enumerate() {
if index == 0 {
term = term.apply(arg);
} else {
term = term.apply(arg.delay());
}
}
term = term.force();
if count == 0 {
for arg_index in (0..func.arity()).rev() {
let temp_var = format!("__item_index_{}", arg_index);
term = term.lambda(temp_var);
}
}
term
}
DefaultFunction::ChooseUnit => {
if count == 0 {
unimplemented!("Honestly, why are you doing this?")
} else {
let term = args.pop().unwrap();
let unit = args.pop().unwrap();
term.lambda("_").apply(unit)
}
}
DefaultFunction::UnConstrData => {
let mut term: Term<Name> = (*func).into();
let temp_tuple = "__unconstr_tuple";
for arg in args {
term = term.apply(arg);
}
let temp_var = "__item_x";
if count == 0 {
term = term.apply(Term::var(temp_var));
}
term = Term::mk_pair_data()
.apply(Term::i_data().apply(Term::fst_pair().apply(Term::var(temp_tuple))))
.apply(Term::list_data().apply(Term::snd_pair().apply(Term::var(temp_tuple))))
.lambda(temp_tuple)
.apply(term);
if count == 0 {
term = term.lambda(temp_var);
}
term
}
_ => unreachable!(),
}
}