chore!: split ValidationError from MaxSizeError; validate and max_serialized_size made BorshSchemaContainer's methods

borsh/src/lib.rs

@@ -92,7 +92,6 @@ pub use schema::BorshSchema;
 #[cfg(feature = "unstable__schema")]
 pub use schema_helpers::{
     max_serialized_size, schema_container_of, try_from_slice_with_schema, try_to_vec_with_schema,
-    MaxSizeError,
 };
 pub use ser::helpers::{to_vec, to_writer};
 pub use ser::BorshSerialize;

borsh/src/schema.rs

@@ -27,6 +27,10 @@ use core::borrow::Borrow;
 use core::cmp::Ord;
 use core::marker::PhantomData;
 
+mod container_ext;
+
+pub use container_ext::{SchemaContainerValidateError, SchemaMaxSerializedSizeError};
+
 /// The type that we use to represent the declaration of the Borsh type.
 pub type Declaration = String;
 /// The type that we use for the name of the variant.

borsh/src/schema/container_ext.rs

@@ -0,0 +1,8 @@
+use super::{BorshSchemaContainer, Declaration, Definition, Fields};
+
+use max_size::is_zero_size;
+pub use max_size::SchemaMaxSerializedSizeError;
+pub use validate::SchemaContainerValidateError;
+
+mod max_size;
+mod validate;