From 6c006e122a050ebbe76c8c566e559bbf9f2301a7 Mon Sep 17 00:00:00 2001
From: Nadrieril
Date: Tue, 20 Aug 2019 23:06:14 +0200
Subject: Reduce API surface of dhall crate

---
 dhall/src/core/value.rs  | 13 +++++--------
 dhall/src/core/valuef.rs | 15 ++-------------
 dhall/src/phase/mod.rs   |  6 +++---
 3 files changed, 10 insertions(+), 24 deletions(-)

(limited to 'dhall/src')

diff --git a/dhall/src/core/value.rs b/dhall/src/core/value.rs
index 24e2803..e1623a8 100644
--- a/dhall/src/core/value.rs
+++ b/dhall/src/core/value.rs
@@ -12,7 +12,7 @@ use crate::phase::typecheck::{builtin_to_value, const_to_value};
 use crate::phase::{NormalizedSubExpr, Typed};
 
 #[derive(Debug, Clone, Copy)]
-pub enum Form {
+pub(crate) enum Form {
     /// No constraints; expression may not be normalized at all.
     Unevaled,
     /// Weak Head Normal Form, i.e. normalized up to the first constructor, but subexpressions may
@@ -41,13 +41,13 @@ struct ValueInternal {
 /// sharing computation automatically. Uses a RefCell to share computation.
 /// Can optionally store a type from typechecking to preserve type information.
 #[derive(Clone)]
-pub struct Value(Rc<RefCell<ValueInternal>>);
+pub(crate) struct Value(Rc<RefCell<ValueInternal>>);
 
 /// When a function needs to return either a freshly created ValueF or an existing Value, but
 /// doesn't want to convert both to the same thing, either to avoid unnecessary allocations or to
 /// avoid loss of typ information.
 #[derive(Debug, Clone)]
-pub enum VoVF {
+pub(crate) enum VoVF {
     Value(Value),
     ValueF { val: ValueF, form: Form },
 }
@@ -111,10 +111,7 @@ impl Value {
     pub(crate) fn from_const(c: Const) -> Self {
         const_to_value(c)
     }
-    pub fn const_type() -> Self {
-        Value::from_const(Const::Type)
-    }
-    pub fn from_builtin(b: Builtin) -> Self {
+    pub(crate) fn from_builtin(b: Builtin) -> Self {
         builtin_to_value(b)
     }
 
@@ -234,7 +231,7 @@ impl Value {
 }
 
 impl VoVF {
-    pub fn into_whnf(self) -> ValueF {
+    pub(crate) fn into_whnf(self) -> ValueF {
         match self {
             VoVF::Value(v) => v.to_whnf(),
             VoVF::ValueF {
diff --git a/dhall/src/core/valuef.rs b/dhall/src/core/valuef.rs
index 316238c..42606a9 100644
--- a/dhall/src/core/valuef.rs
+++ b/dhall/src/core/valuef.rs
@@ -15,7 +15,7 @@ use crate::phase::{Normalized, NormalizedSubExpr};
 /// alpha-equivalence (renaming of bound variables) and beta-equivalence (normalization). It will
 /// recursively normalize as needed.
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub enum ValueF {
+pub(crate) enum ValueF {
     /// Closures
     Lam(AlphaLabel, Value, Value),
     Pi(AlphaLabel, Value, Value),
@@ -53,12 +53,6 @@ impl ValueF {
     pub(crate) fn into_value_with_type(self, t: Value) -> Value {
         Value::from_valuef_and_type(self, t)
     }
-    pub(crate) fn into_vovf_unevaled(self) -> VoVF {
-        VoVF::ValueF {
-            val: self,
-            form: Form::Unevaled,
-        }
-    }
     pub(crate) fn into_vovf_whnf(self) -> VoVF {
         VoVF::ValueF {
             val: self,
@@ -265,12 +259,7 @@ impl ValueF {
         }
     }
 
-    /// Apply to a value
-    pub fn app(self, v: Value) -> VoVF {
-        self.into_vovf_unevaled().app(v)
-    }
-
-    pub fn from_builtin(b: Builtin) -> ValueF {
+    pub(crate) fn from_builtin(b: Builtin) -> ValueF {
         ValueF::AppliedBuiltin(b, vec![])
     }
 }
diff --git a/dhall/src/phase/mod.rs b/dhall/src/phase/mod.rs
index b5b7b64..ecf04e9 100644
--- a/dhall/src/phase/mod.rs
+++ b/dhall/src/phase/mod.rs
@@ -92,13 +92,13 @@ impl Typed {
     pub(crate) fn from_const(c: Const) -> Self {
         Typed(Value::from_const(c))
     }
-    pub fn from_valuef_and_type(v: ValueF, t: Typed) -> Self {
+    pub(crate) fn from_valuef_and_type(v: ValueF, t: Typed) -> Self {
         Typed(Value::from_valuef_and_type(v, t.into_value()))
     }
     pub(crate) fn from_value(th: Value) -> Self {
         Typed(th)
     }
-    pub fn const_type() -> Self {
+    pub(crate) fn const_type() -> Self {
         Typed::from_const(Const::Type)
     }
 
@@ -108,7 +108,7 @@ impl Typed {
     pub(crate) fn to_expr_alpha(&self) -> NormalizedSubExpr {
         self.0.to_expr_alpha()
     }
-    pub fn to_value(&self) -> Value {
+    pub(crate) fn to_value(&self) -> Value {
         self.0.clone()
     }
     pub(crate) fn into_value(self) -> Value {
-- 
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