use crate::plan::CustomFieldAccess;
use crate::plan::{
BoolExpr, CaptureArg, ConstantTupleFunctionInstantiation, FloatExpr, FunctionFunctionExpr,
FunctionInstantiation, FunctionListExpr, FunctionType, IntExpr, PanicExpr, Step, StringExpr,
TupleExpr, TupleFunctionLocalId, TupleFunctionReference, ValueType,
};
use ecow::EcoString;
use num_bigint::BigInt;
#[derive(Debug, Clone, PartialEq)]
pub struct TupleFunctionExpr {
type_: FunctionType,
kind: TupleFunctionExprKind,
}
#[derive(Debug, Clone, PartialEq)]
pub(crate) enum TupleFunctionExprKind {
Constant(ConstantTupleFunctionInstantiation),
Reference(TupleFunctionReference),
Closure {
function: FunctionInstantiation,
captures: Vec<CaptureArg>,
return_type: Vec<ValueType>,
},
LocalGet {
local: TupleFunctionLocalId,
name: EcoString,
},
Call {
function: FunctionInstantiation,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
site: crate::plan::HostCallSite,
},
FunctionCall {
function: Box<FunctionFunctionExpr>,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
site: crate::plan::HostCallSite,
},
TupleIndex {
tuple: Box<TupleExpr>,
index: usize,
type_: FunctionType,
},
CustomField(CustomFieldAccess),
ListIndex {
list: Box<FunctionListExpr>,
index: usize,
type_: FunctionType,
},
Panic(PanicExpr),
BoolCase {
subject: Box<BoolExpr>,
true_: Box<TupleFunctionExpr>,
false_: Box<TupleFunctionExpr>,
},
IntCase {
subject: Box<IntExpr>,
clauses: Vec<(BigInt, TupleFunctionExpr)>,
fallback: Box<TupleFunctionExpr>,
},
StringCase {
subject: Box<StringExpr>,
clauses: Vec<(EcoString, TupleFunctionExpr)>,
fallback: Box<TupleFunctionExpr>,
},
FloatCase {
subject: Box<FloatExpr>,
clauses: Vec<(f64, TupleFunctionExpr)>,
fallback: Box<TupleFunctionExpr>,
},
Block {
steps: Vec<Step>,
return_: Box<TupleFunctionExpr>,
},
}
impl TupleFunctionExpr {
pub(crate) fn constant(value: ConstantTupleFunctionInstantiation, type_: FunctionType) -> Self {
Self {
type_,
kind: TupleFunctionExprKind::Constant(value),
}
}
pub(crate) fn reference(value: TupleFunctionReference) -> Self {
let type_ = value.instantiation().shape().type_();
Self {
type_,
kind: TupleFunctionExprKind::Reference(value),
}
}
pub(crate) fn closure(
function: FunctionInstantiation,
captures: Vec<CaptureArg>,
type_: FunctionType,
return_type: Vec<ValueType>,
) -> Self {
Self {
type_,
kind: TupleFunctionExprKind::Closure {
function,
captures,
return_type,
},
}
}
pub(crate) fn local_get(
local: TupleFunctionLocalId,
name: EcoString,
type_: FunctionType,
) -> Self {
Self {
type_,
kind: TupleFunctionExprKind::LocalGet { local, name },
}
}
#[cfg(test)]
pub(crate) fn call(
function: FunctionInstantiation,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
) -> Self {
Self::call_at(function, args, type_, crate::plan::HostCallSite::unknown())
}
pub(crate) fn call_at(
function: FunctionInstantiation,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
site: crate::plan::HostCallSite,
) -> Self {
Self {
type_: type_.clone(),
kind: TupleFunctionExprKind::Call {
function,
args,
type_,
site,
},
}
}
#[cfg(test)]
pub(crate) fn function_call(
function: FunctionFunctionExpr,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
) -> Self {
Self::function_call_at(function, args, type_, crate::plan::HostCallSite::unknown())
}
pub(crate) fn function_call_at(
function: FunctionFunctionExpr,
args: Vec<crate::plan::CallArg>,
type_: FunctionType,
site: crate::plan::HostCallSite,
) -> Self {
Self {
type_: type_.clone(),
kind: TupleFunctionExprKind::FunctionCall {
function: Box::new(function),
args,
type_,
site,
},
}
}
pub(crate) fn tuple_index(tuple: TupleExpr, index: usize, type_: FunctionType) -> Self {
Self {
type_: type_.clone(),
kind: TupleFunctionExprKind::TupleIndex {
tuple: Box::new(tuple),
index,
type_,
},
}
}
pub(crate) fn custom_field(access: CustomFieldAccess, type_: FunctionType) -> Self {
Self {
type_,
kind: TupleFunctionExprKind::CustomField(access),
}
}
pub(crate) fn list_index(
list: impl Into<FunctionListExpr>,
index: usize,
type_: FunctionType,
) -> Self {
Self {
type_: type_.clone(),
kind: TupleFunctionExprKind::ListIndex {
list: Box::new(list.into()),
index,
type_,
},
}
}
pub(crate) fn panic(panic: PanicExpr, type_: FunctionType) -> Self {
Self {
type_,
kind: TupleFunctionExprKind::Panic(panic),
}
}
pub(crate) fn bool_case(
subject: BoolExpr,
true_: TupleFunctionExpr,
false_: TupleFunctionExpr,
) -> Self {
Self {
type_: true_.type_.clone(),
kind: TupleFunctionExprKind::BoolCase {
subject: Box::new(subject),
true_: Box::new(true_),
false_: Box::new(false_),
},
}
}
pub(crate) fn int_case(
subject: IntExpr,
clauses: Vec<(BigInt, TupleFunctionExpr)>,
fallback: TupleFunctionExpr,
) -> Self {
Self {
type_: fallback.type_.clone(),
kind: TupleFunctionExprKind::IntCase {
subject: Box::new(subject),
clauses,
fallback: Box::new(fallback),
},
}
}
pub(crate) fn string_case(
subject: StringExpr,
clauses: Vec<(EcoString, TupleFunctionExpr)>,
fallback: TupleFunctionExpr,
) -> Self {
Self {
type_: fallback.type_.clone(),
kind: TupleFunctionExprKind::StringCase {
subject: Box::new(subject),
clauses,
fallback: Box::new(fallback),
},
}
}
pub(crate) fn float_case(
subject: FloatExpr,
clauses: Vec<(f64, TupleFunctionExpr)>,
fallback: TupleFunctionExpr,
) -> Self {
Self {
type_: fallback.type_.clone(),
kind: TupleFunctionExprKind::FloatCase {
subject: Box::new(subject),
clauses,
fallback: Box::new(fallback),
},
}
}
pub(crate) fn block(steps: Vec<Step>, return_: TupleFunctionExpr) -> Self {
Self {
type_: return_.type_.clone(),
kind: TupleFunctionExprKind::Block {
steps,
return_: Box::new(return_),
},
}
}
pub fn type_(&self) -> &FunctionType {
&self.type_
}
pub(crate) fn kind(&self) -> &TupleFunctionExprKind {
&self.kind
}
}
#[cfg(test)]
mod tests {
use super::{TupleFunctionExpr, TupleFunctionExprKind};
use crate::plan::{
BoolExpr, Expr, FunctionFunctionExpr, FunctionFunctionReference, FunctionInstantiation,
FunctionShape, FunctionType, IntExpr, Step, TupleExpr, TupleFunctionLocalId,
TupleFunctionReference, ValueShape, ValueType, monomorphic_function_instantiation,
};
#[test]
fn tuple_function_expr_kind_accessors() {
assert_eq!(
tuple_function_value().kind(),
&TupleFunctionExprKind::Reference(
TupleFunctionReference::new(function_instantiation())
),
);
assert_eq!(
TupleFunctionExpr::closure(
function_instantiation(),
Vec::new(),
tuple_function_type(),
tuple_type(),
)
.kind(),
&TupleFunctionExprKind::Closure {
function: function_instantiation(),
captures: Vec::new(),
return_type: tuple_type(),
},
);
assert_eq!(
TupleFunctionExpr::local_get(
TupleFunctionLocalId(0),
"f".into(),
tuple_function_type(),
)
.kind(),
&TupleFunctionExprKind::LocalGet {
local: TupleFunctionLocalId(0),
name: "f".into(),
},
);
assert_eq!(
TupleFunctionExpr::call(
function_returning_function_instantiation(),
Vec::new(),
tuple_function_type(),
)
.kind(),
&TupleFunctionExprKind::Call {
function: function_returning_function_instantiation(),
args: Vec::new(),
type_: tuple_function_type(),
site: crate::plan::HostCallSite::unknown(),
},
);
assert_eq!(
TupleFunctionExpr::function_call(
function_function_value(),
Vec::new(),
tuple_function_type(),
)
.kind(),
&TupleFunctionExprKind::FunctionCall {
function: Box::new(function_function_value()),
args: Vec::new(),
type_: tuple_function_type(),
site: crate::plan::HostCallSite::unknown(),
},
);
assert_eq!(
TupleFunctionExpr::tuple_index(tuple_expr(), 0, tuple_function_type()).kind(),
&TupleFunctionExprKind::TupleIndex {
tuple: Box::new(tuple_expr()),
index: 0,
type_: tuple_function_type(),
},
);
assert_eq!(
TupleFunctionExpr::bool_case(
BoolExpr::value(true),
tuple_function_value(),
tuple_function_value(),
)
.kind(),
&TupleFunctionExprKind::BoolCase {
subject: Box::new(BoolExpr::value(true)),
true_: Box::new(tuple_function_value()),
false_: Box::new(tuple_function_value()),
},
);
assert_eq!(
TupleFunctionExpr::int_case(
IntExpr::value(1.into()),
vec![(1.into(), tuple_function_value())],
tuple_function_value(),
)
.kind(),
&TupleFunctionExprKind::IntCase {
subject: Box::new(IntExpr::value(1.into())),
clauses: vec![(1.into(), tuple_function_value())],
fallback: Box::new(tuple_function_value()),
},
);
assert_eq!(
TupleFunctionExpr::string_case(
crate::plan::StringExpr::value("one".into()),
vec![("one".into(), tuple_function_value())],
tuple_function_value(),
)
.kind(),
&TupleFunctionExprKind::StringCase {
subject: Box::new(crate::plan::StringExpr::value("one".into())),
clauses: vec![("one".into(), tuple_function_value())],
fallback: Box::new(tuple_function_value()),
},
);
assert_eq!(
TupleFunctionExpr::float_case(
crate::plan::FloatExpr::value(1.0),
vec![(1.0, tuple_function_value())],
tuple_function_value(),
)
.kind(),
&TupleFunctionExprKind::FloatCase {
subject: Box::new(crate::plan::FloatExpr::value(1.0)),
clauses: vec![(1.0, tuple_function_value())],
fallback: Box::new(tuple_function_value()),
},
);
assert_eq!(
TupleFunctionExpr::block(
vec![Step::evaluate(Expr::int(IntExpr::value(1.into())))],
tuple_function_value(),
)
.kind(),
&TupleFunctionExprKind::Block {
steps: vec![Step::evaluate(Expr::int(IntExpr::value(1.into())))],
return_: Box::new(tuple_function_value()),
},
);
}
#[test]
fn tuple_function_expr_type() {
assert_eq!(tuple_function_value().type_(), &tuple_function_type());
assert_eq!(
TupleFunctionExpr::closure(
function_instantiation(),
Vec::new(),
tuple_function_type(),
tuple_type(),
)
.type_(),
&tuple_function_type(),
);
assert_eq!(
TupleFunctionExpr::bool_case(
BoolExpr::value(true),
tuple_function_value(),
tuple_function_value(),
)
.type_(),
&tuple_function_type(),
);
assert_eq!(
TupleFunctionExpr::int_case(
IntExpr::value(1.into()),
vec![(1.into(), tuple_function_value())],
tuple_function_value(),
)
.type_(),
&tuple_function_type(),
);
assert_eq!(
TupleFunctionExpr::block(Vec::new(), tuple_function_value()).type_(),
&tuple_function_type(),
);
}
fn tuple_function_value() -> TupleFunctionExpr {
TupleFunctionExpr::reference(TupleFunctionReference::new(function_instantiation()))
}
fn tuple_function_type() -> FunctionType {
FunctionType::new(vec![ValueType::Int], ValueType::Tuple(tuple_type()))
}
fn tuple_type() -> Vec<ValueType> {
vec![ValueType::Int]
}
fn tuple_expr() -> TupleExpr {
TupleExpr::value(
vec![Expr::int(IntExpr::value(1.into()))],
vec![ValueType::Function(Box::new(tuple_function_type()))],
)
}
fn function_function_value() -> FunctionFunctionExpr {
FunctionFunctionExpr::reference(
FunctionFunctionReference::new(function_returning_function_instantiation()),
tuple_function_type(),
)
}
fn function_instantiation() -> FunctionInstantiation {
monomorphic_function_instantiation(
0,
FunctionShape::from_function_type(tuple_function_type()),
)
}
fn function_returning_function_instantiation() -> FunctionInstantiation {
monomorphic_function_instantiation(
1,
FunctionShape::new(
Vec::new(),
ValueShape::Function(Box::new(FunctionShape::from_function_type(
tuple_function_type(),
))),
),
)
}
}