1 files changed, 8 insertions, 9 deletions

diff --git a/syntax/discriminant.rs b/syntax/discriminant.rs
index 21a6d00a..775e57bb 100644
--- a/syntax/discriminant.rs
+++ b/syntax/discriminant.rs
@@ -5,17 +5,16 @@ use std::cmp::Ordering;
 use std::collections::BTreeSet;
 use std::fmt::{self, Display};
 use std::str::FromStr;
-use std::u64;
 use syn::{Error, Expr, Lit, Result, Token, UnOp};
 
-pub struct DiscriminantSet {
+pub(crate) struct DiscriminantSet {
     repr: Option<Atom>,
     values: BTreeSet<Discriminant>,
     previous: Option<Discriminant>,
 }
 
 #[derive(Copy, Clone, Eq, PartialEq)]
-pub struct Discriminant {
+pub(crate) struct Discriminant {
     sign: Sign,
     magnitude: u64,
 }
@@ -27,7 +26,7 @@ enum Sign {
 }
 
 impl DiscriminantSet {
-    pub fn new(repr: Option<Atom>) -> Self {
+    pub(crate) fn new(repr: Option<Atom>) -> Self {
         DiscriminantSet {
             repr,
             values: BTreeSet::new(),
@@ -35,7 +34,7 @@ impl DiscriminantSet {
         }
     }
 
-    pub fn insert(&mut self, expr: &Expr) -> Result<Discriminant> {
+    pub(crate) fn insert(&mut self, expr: &Expr) -> Result<Discriminant> {
         let (discriminant, repr) = expr_to_discriminant(expr)?;
         match (self.repr, repr) {
             (None, Some(new_repr)) => {
@@ -62,7 +61,7 @@ impl DiscriminantSet {
         insert(self, discriminant)
     }
 
-    pub fn insert_next(&mut self) -> Result<Discriminant> {
+    pub(crate) fn insert_next(&mut self) -> Result<Discriminant> {
         let discriminant = match self.previous {
             None => Discriminant::zero(),
             Some(mut discriminant) => match discriminant.sign {
@@ -86,7 +85,7 @@ impl DiscriminantSet {
         insert(self, discriminant)
     }
 
-    pub fn inferred_repr(&self) -> Result<Atom> {
+    pub(crate) fn inferred_repr(&self) -> Result<Atom> {
         if let Some(repr) = self.repr {
             return Ok(repr);
         }
@@ -150,7 +149,7 @@ fn insert(set: &mut DiscriminantSet, discriminant: Discriminant) -> Result<Discr
 }
 
 impl Discriminant {
-    pub const fn zero() -> Self {
+    pub(crate) const fn zero() -> Self {
         Discriminant {
             sign: Sign::Positive,
             magnitude: 0,
@@ -181,7 +180,7 @@ impl Discriminant {
     }
 
     #[cfg(feature = "experimental-enum-variants-from-header")]
-    pub const fn checked_succ(self) -> Option<Self> {
+    pub(crate) const fn checked_succ(self) -> Option<Self> {
         match self.sign {
             Sign::Negative => {
                 if self.magnitude == 1 {