diff --git a/serde_derive/src/de/enum_.rs b/serde_derive/src/de/enum_.rs
index c5040b89..15a1e541 100644
--- a/serde_derive/src/de/enum_.rs
+++ b/serde_derive/src/de/enum_.rs
@@ -12,7 +12,7 @@ use proc_macro2::TokenStream;
 use quote::quote;
 
 /// Generates `Deserialize::deserialize` body for an `enum Enum {...}`
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/enum_adjacently.rs b/serde_derive/src/de/enum_adjacently.rs
index 34561bdb..59239351 100644
--- a/serde_derive/src/de/enum_adjacently.rs
+++ b/serde_derive/src/de/enum_adjacently.rs
@@ -16,7 +16,7 @@ use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
 
 /// Generates `Deserialize::deserialize` body for an `enum Enum {...}` with `#[serde(tag, content)]` attributes
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/enum_externally.rs b/serde_derive/src/de/enum_externally.rs
index 41c3aeaf..75f329ec 100644
--- a/serde_derive/src/de/enum_externally.rs
+++ b/serde_derive/src/de/enum_externally.rs
@@ -20,7 +20,7 @@ use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
 
 /// Generates `Deserialize::deserialize` body for an `enum Enum {...}` without additional attributes
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/enum_internally.rs b/serde_derive/src/de/enum_internally.rs
index 2b176284..e3e85f52 100644
--- a/serde_derive/src/de/enum_internally.rs
+++ b/serde_derive/src/de/enum_internally.rs
@@ -18,7 +18,7 @@ use crate::private;
 use quote::quote;
 
 /// Generates `Deserialize::deserialize` body for an `enum Enum {...}` with `#[serde(tag)]` attribute
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/enum_untagged.rs b/serde_derive/src/de/enum_untagged.rs
index 08c4bb6a..d431e537 100644
--- a/serde_derive/src/de/enum_untagged.rs
+++ b/serde_derive/src/de/enum_untagged.rs
@@ -19,7 +19,7 @@ use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
 
 /// Generates `Deserialize::deserialize` body for an `enum Enum {...}` with `#[serde(untagged)]` attribute
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
@@ -59,7 +59,7 @@ pub fn generate_body(
 }
 
 // Also used by adjacently tagged enums
-pub fn generate_variant(
+pub(super) fn generate_variant(
     params: &Parameters,
     variant: &Variant,
     cattrs: &attr::Container,
@@ -110,7 +110,7 @@ pub fn generate_variant(
 
 // Also used by internally tagged enums
 // Implicitly (via `generate_variant`) used by adjacently tagged enums
-pub fn generate_newtype_variant(
+pub(super) fn generate_newtype_variant(
     variant_ident: &syn::Ident,
     params: &Parameters,
     field: &Field,
diff --git a/serde_derive/src/de/identifier.rs b/serde_derive/src/de/identifier.rs
index 1b347b35..d90903bf 100644
--- a/serde_derive/src/de/identifier.rs
+++ b/serde_derive/src/de/identifier.rs
@@ -10,7 +10,7 @@ use quote::{quote, ToTokens};
 
 // Generates `Deserialize::deserialize` body for an enum with
 // `serde(field_identifier)` or `serde(variant_identifier)` attribute.
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     variants: &[Variant],
     cattrs: &attr::Container,
@@ -120,7 +120,7 @@ pub fn generate_body(
     }
 }
 
-pub fn generate_identifier(
+pub(super) fn generate_identifier(
     deserialized_fields: &[FieldWithAliases],
     has_flatten: bool,
     is_variant: bool,
diff --git a/serde_derive/src/de/struct_.rs b/serde_derive/src/de/struct_.rs
index 4d80e08f..09e13d80 100644
--- a/serde_derive/src/de/struct_.rs
+++ b/serde_derive/src/de/struct_.rs
@@ -14,7 +14,7 @@ use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
 
 /// Generates `Deserialize::deserialize` body for a `struct Struct {...}`
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     fields: &[Field],
     cattrs: &attr::Container,
@@ -419,7 +419,7 @@ fn deserialize_map(
 
 /// Generates `Deserialize::deserialize_in_place` body for a `struct Struct {...}`
 #[cfg(feature = "deserialize_in_place")]
-pub fn generate_body_in_place(
+pub(super) fn generate_body_in_place(
     params: &Parameters,
     fields: &[Field],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/tuple.rs b/serde_derive/src/de/tuple.rs
index 2a2d9f97..7b96ae02 100644
--- a/serde_derive/src/de/tuple.rs
+++ b/serde_derive/src/de/tuple.rs
@@ -10,7 +10,7 @@ use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
 
 /// Generates `Deserialize::deserialize` body for a `struct Tuple(...);` including `struct Newtype(T);`
-pub fn generate_body(
+pub(super) fn generate_body(
     params: &Parameters,
     fields: &[Field],
     cattrs: &attr::Container,
@@ -182,7 +182,7 @@ fn deserialize_newtype_struct(
 
 /// Generates `Deserialize::deserialize_in_place` body for a `struct Tuple(...);` including `struct Newtype(T);`
 #[cfg(feature = "deserialize_in_place")]
-pub fn generate_body_in_place(
+pub(super) fn generate_body_in_place(
     params: &Parameters,
     fields: &[Field],
     cattrs: &attr::Container,
diff --git a/serde_derive/src/de/unit.rs b/serde_derive/src/de/unit.rs
index 3bad35e1..34f90808 100644
--- a/serde_derive/src/de/unit.rs
+++ b/serde_derive/src/de/unit.rs
@@ -5,7 +5,7 @@ use crate::private;
 use quote::quote;
 
 /// Generates `Deserialize::deserialize` body for a `struct Unit;`
-pub fn generate_body(params: &Parameters, cattrs: &attr::Container) -> Fragment {
+pub(super) fn generate_body(params: &Parameters, cattrs: &attr::Container) -> Fragment {
     let this_type = &params.this_type;
     let this_value = &params.this_value;
     let type_name = cattrs.name().deserialize_name();