summaryrefslogtreecommitdiff
path: root/dhall/src/syntax/ast
diff options
context:
space:
mode:
Diffstat (limited to 'dhall/src/syntax/ast')
-rw-r--r--dhall/src/syntax/ast/expr.rs24
-rw-r--r--dhall/src/syntax/ast/visitor.rs47
2 files changed, 36 insertions, 35 deletions
diff --git a/dhall/src/syntax/ast/expr.rs b/dhall/src/syntax/ast/expr.rs
index 5b9f401..7ac342d 100644
--- a/dhall/src/syntax/ast/expr.rs
+++ b/dhall/src/syntax/ast/expr.rs
@@ -1,5 +1,5 @@
use crate::syntax::map::{DupTreeMap, DupTreeSet};
-use crate::syntax::visitor::{self, ExprFMutVisitor, ExprFVisitor};
+use crate::syntax::visitor::{self, ExprKindMutVisitor, ExprKindVisitor};
use crate::syntax::*;
pub type Integer = isize;
@@ -144,7 +144,7 @@ pub enum Builtin {
#[derive(Debug, Clone)]
pub struct Expr<Embed>(Box<(RawExpr<Embed>, Span)>);
-pub type RawExpr<Embed> = ExprF<Expr<Embed>, Embed>;
+pub type RawExpr<Embed> = ExprKind<Expr<Embed>, Embed>;
impl<Embed: PartialEq> std::cmp::PartialEq for Expr<Embed> {
fn eq(&self, other: &Self) -> bool {
@@ -168,7 +168,7 @@ impl<Embed: std::hash::Hash> std::hash::Hash for Expr<Embed> {
// much more generic code and improves pattern-matching behind
// smart pointers.
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub enum ExprF<SubExpr, Embed> {
+pub enum ExprKind<SubExpr, Embed> {
Const(Const),
/// `x`
/// `x@n`
@@ -231,12 +231,12 @@ pub enum ExprF<SubExpr, Embed> {
Embed(Embed),
}
-impl<SE, E> ExprF<SE, E> {
+impl<SE, E> ExprKind<SE, E> {
pub fn traverse_ref_with_special_handling_of_binders<'a, SE2, Err>(
&'a self,
visit_subexpr: impl FnMut(&'a SE) -> Result<SE2, Err>,
visit_under_binder: impl FnOnce(&'a Label, &'a SE) -> Result<SE2, Err>,
- ) -> Result<ExprF<SE2, E>, Err>
+ ) -> Result<ExprKind<SE2, E>, Err>
where
E: Clone,
{
@@ -250,7 +250,7 @@ impl<SE, E> ExprF<SE, E> {
fn traverse_ref<'a, SE2, Err>(
&'a self,
visit_subexpr: impl FnMut(&'a SE) -> Result<SE2, Err>,
- ) -> Result<ExprF<SE2, E>, Err>
+ ) -> Result<ExprKind<SE2, E>, Err>
where
E: Clone,
{
@@ -268,7 +268,7 @@ impl<SE, E> ExprF<SE, E> {
&'a self,
mut map_subexpr: impl FnMut(&'a SE) -> SE2,
mut map_under_binder: impl FnMut(&'a Label, &'a SE) -> SE2,
- ) -> ExprF<SE2, E>
+ ) -> ExprKind<SE2, E>
where
E: Clone,
{
@@ -281,7 +281,7 @@ impl<SE, E> ExprF<SE, E> {
pub fn map_ref<'a, SE2>(
&'a self,
mut map_subexpr: impl FnMut(&'a SE) -> SE2,
- ) -> ExprF<SE2, E>
+ ) -> ExprKind<SE2, E>
where
E: Clone,
{
@@ -321,8 +321,8 @@ impl<E> Expr<E> {
F1: FnMut(Import<Expr<E>>) -> Result<E, Err>,
{
match self.as_mut() {
- ExprF::BinOp(BinOp::ImportAlt, l, r) => {
- let garbage_expr = ExprF::BoolLit(false);
+ ExprKind::BinOp(BinOp::ImportAlt, l, r) => {
+ let garbage_expr = ExprKind::BoolLit(false);
let new_self = if l.traverse_resolve_mut(f).is_ok() {
l
} else {
@@ -334,7 +334,7 @@ impl<E> Expr<E> {
}
_ => {
self.as_mut().traverse_mut(|e| e.traverse_resolve_mut(f))?;
- if let ExprF::Import(import) = self.as_mut() {
+ if let ExprKind::Import(import) = self.as_mut() {
let garbage_import = Import {
mode: ImportMode::Code,
location: ImportLocation::Missing,
@@ -342,7 +342,7 @@ impl<E> Expr<E> {
};
// Move out of &mut import
let import = std::mem::replace(import, garbage_import);
- *self.as_mut() = ExprF::Embed(f(import)?);
+ *self.as_mut() = ExprKind::Embed(f(import)?);
}
}
}
diff --git a/dhall/src/syntax/ast/visitor.rs b/dhall/src/syntax/ast/visitor.rs
index b76d037..b557995 100644
--- a/dhall/src/syntax/ast/visitor.rs
+++ b/dhall/src/syntax/ast/visitor.rs
@@ -1,7 +1,7 @@
use crate::syntax::*;
use std::iter::FromIterator;
-/// A visitor trait that can be used to traverse `ExprF`s. We need this pattern so that Rust lets
+/// A visitor trait that can be used to traverse `ExprKind`s. We need this pattern so that Rust lets
/// us have as much mutability as we can.
/// For example, `traverse_ref_with_special_handling_of_binders` cannot be made using only
/// `traverse_ref`, because `traverse_ref` takes a `FnMut` so we would need to pass multiple
@@ -9,7 +9,7 @@ use std::iter::FromIterator;
/// preventing exactly this ! So we have to be more clever. The visitor pattern allows us to have
/// only one mutable thing the whole time: the visitor itself. The visitor can then carry around
/// multiple closures or just one, and Rust is ok with either. See for example TraverseRefVisitor.
-pub trait ExprFVisitor<'a, SE1, SE2, E1, E2>: Sized {
+pub trait ExprKindVisitor<'a, SE1, SE2, E1, E2>: Sized {
type Error;
fn visit_subexpr(&mut self, subexpr: &'a SE1) -> Result<SE2, Self::Error>;
@@ -25,14 +25,14 @@ pub trait ExprFVisitor<'a, SE1, SE2, E1, E2>: Sized {
fn visit(
self,
- input: &'a ExprF<SE1, E1>,
- ) -> Result<ExprF<SE2, E2>, Self::Error> {
+ input: &'a ExprKind<SE1, E1>,
+ ) -> Result<ExprKind<SE2, E2>, Self::Error> {
visit_ref(self, input)
}
}
-/// Like `ExprFVisitor`, but by mutable reference
-pub trait ExprFMutVisitor<'a, SE, E>: Sized {
+/// Like `ExprKindVisitor`, but by mutable reference
+pub trait ExprKindMutVisitor<'a, SE, E>: Sized {
type Error;
fn visit_subexpr(&mut self, subexpr: &'a mut SE)
@@ -49,17 +49,17 @@ pub trait ExprFMutVisitor<'a, SE, E>: Sized {
self.visit_subexpr(subexpr)
}
- fn visit(self, input: &'a mut ExprF<SE, E>) -> Result<(), Self::Error> {
+ fn visit(self, input: &'a mut ExprKind<SE, E>) -> Result<(), Self::Error> {
visit_mut(self, input)
}
}
fn visit_ref<'a, V, SE1, SE2, E1, E2>(
mut v: V,
- input: &'a ExprF<SE1, E1>,
-) -> Result<ExprF<SE2, E2>, V::Error>
+ input: &'a ExprKind<SE1, E1>,
+) -> Result<ExprKind<SE2, E2>, V::Error>
where
- V: ExprFVisitor<'a, SE1, SE2, E1, E2>,
+ V: ExprKindVisitor<'a, SE1, SE2, E1, E2>,
{
fn vec<'a, T, U, Err, F: FnMut(&'a T) -> Result<U, Err>>(
x: &'a [T],
@@ -83,7 +83,7 @@ where
where
SE1: 'a,
T: FromIterator<(Label, SE2)>,
- V: ExprFVisitor<'a, SE1, SE2, E1, E2>,
+ V: ExprKindVisitor<'a, SE1, SE2, E1, E2>,
{
x.into_iter()
.map(|(k, x)| Ok((k.clone(), v.visit_subexpr(x)?)))
@@ -96,7 +96,7 @@ where
where
SE1: 'a,
T: FromIterator<(Label, Option<SE2>)>,
- V: ExprFVisitor<'a, SE1, SE2, E1, E2>,
+ V: ExprKindVisitor<'a, SE1, SE2, E1, E2>,
{
x.into_iter()
.map(|(k, x)| {
@@ -111,7 +111,7 @@ where
.collect()
}
- use crate::syntax::ExprF::*;
+ use crate::syntax::ExprKind::*;
Ok(match input {
Var(v) => Var(v.clone()),
Lam(l, t, e) => {
@@ -172,14 +172,14 @@ where
fn visit_mut<'a, V, SE, E>(
mut v: V,
- input: &'a mut ExprF<SE, E>,
+ input: &'a mut ExprKind<SE, E>,
) -> Result<(), V::Error>
where
- V: ExprFMutVisitor<'a, SE, E>,
+ V: ExprKindMutVisitor<'a, SE, E>,
{
fn vec<'a, V, SE, E>(v: &mut V, x: &'a mut Vec<SE>) -> Result<(), V::Error>
where
- V: ExprFMutVisitor<'a, SE, E>,
+ V: ExprKindMutVisitor<'a, SE, E>,
{
for x in x {
v.visit_subexpr(x)?;
@@ -191,7 +191,7 @@ where
x: &'a mut Option<SE>,
) -> Result<(), V::Error>
where
- V: ExprFMutVisitor<'a, SE, E>,
+ V: ExprKindMutVisitor<'a, SE, E>,
{
if let Some(x) = x {
v.visit_subexpr(x)?;
@@ -204,7 +204,7 @@ where
) -> Result<(), V::Error>
where
SE: 'a,
- V: ExprFMutVisitor<'a, SE, E>,
+ V: ExprKindMutVisitor<'a, SE, E>,
{
for (_, x) in x {
v.visit_subexpr(x)?;
@@ -217,7 +217,7 @@ where
) -> Result<(), V::Error>
where
SE: 'a,
- V: ExprFMutVisitor<'a, SE, E>,
+ V: ExprKindMutVisitor<'a, SE, E>,
{
for (_, x) in x {
opt(&mut v, x)?;
@@ -225,7 +225,7 @@ where
Ok(())
}
- use crate::syntax::ExprF::*;
+ use crate::syntax::ExprKind::*;
match input {
Var(_) | Const(_) | Builtin(_) | BoolLit(_) | NaturalLit(_)
| IntegerLit(_) | DoubleLit(_) => {}
@@ -293,7 +293,7 @@ pub struct TraverseRefWithBindersVisitor<F1, F2> {
pub visit_under_binder: F2,
}
-impl<'a, SE, E, SE2, Err, F1, F2> ExprFVisitor<'a, SE, SE2, E, E>
+impl<'a, SE, E, SE2, Err, F1, F2> ExprKindVisitor<'a, SE, SE2, E, E>
for TraverseRefWithBindersVisitor<F1, F2>
where
SE: 'a,
@@ -322,7 +322,7 @@ pub struct TraverseRefVisitor<F1> {
pub visit_subexpr: F1,
}
-impl<'a, SE, E, SE2, Err, F1> ExprFVisitor<'a, SE, SE2, E, E>
+impl<'a, SE, E, SE2, Err, F1> ExprKindVisitor<'a, SE, SE2, E, E>
for TraverseRefVisitor<F1>
where
SE: 'a,
@@ -343,7 +343,8 @@ pub struct TraverseMutVisitor<F1> {
pub visit_subexpr: F1,
}
-impl<'a, SE, E, Err, F1> ExprFMutVisitor<'a, SE, E> for TraverseMutVisitor<F1>
+impl<'a, SE, E, Err, F1> ExprKindMutVisitor<'a, SE, E>
+ for TraverseMutVisitor<F1>
where
SE: 'a,
E: 'a,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 21:06:57 +0000