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Introduce prefixed storage with enumeration (#4185)

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* Introduce storage_next allowing iteration.  (without childtries)

* Implement prefixed storage

* impl cache in client_storage_cache (needs test)

* switch overlay change to btreemap

* Revert "impl cache in client_storage_cache"

This reverts commit c91a4848916eba87184b3dc4722cea81aec9339d.

the storage cache cannot be used this way

* Revert "Implement prefixed storage"

This reverts commit 4931088126a427082d7310ed7e83b8eea966bc20.

* Impl StoragePrefixedMap for all map storages

* remove comment

* Move all overlays to BTreeMap

* btreemap iteration improvment

* impl for child tries

* impl tests for childs

* fix

* remove cache comment

* Fix grumble
This commit is contained in:
thiolliere
2019-12-09 20:55:11 +01:00
committed by Bastian Köcher
parent fb1eb9d9e4
commit e5b6935c2a
25 changed files with 711 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/support/procedural/src/lib.rs
+3
View File
@@ -69,6 +69,7 @@ use proc_macro::TokenStream;
/// * Map: `Foo: map hasher($hash) type => type`: Implements the
/// [`StorageMap`](../frame_support/storage/trait.StorageMap.html) trait using the
/// [`StorageMap generator`](../frame_support/storage/generator/trait.StorageMap.html).
/// And [`StoragePrefixedMap`](../frame_support/storage/trait.StoragePrefixedMap.html).
///
/// `$hash` representing a choice of hashing algorithms available in the
/// [`Hashable`](../frame_support/trait.Hashable.html) trait.
@@ -89,6 +90,7 @@ use proc_macro::TokenStream;
/// * Linked map: `Foo: linked_map hasher($hash) type => type`: Implements the
/// [`StorageLinkedMap`](../frame_support/storage/trait.StorageLinkedMap.html) trait using the
/// [`StorageLinkedMap generator`](../frame_support/storage/generator/trait.StorageLinkedMap.html).
/// And [`StoragePrefixedMap`](../frame_support/storage/trait.StoragePrefixedMap.html).
///
/// `$hash` representing a choice of hashing algorithms available in the
/// [`Hashable`](../frame_support/trait.Hashable.html) trait.
@@ -118,6 +120,7 @@ use proc_macro::TokenStream;
/// * Double map: `Foo: double_map hasher($hash1) u32, $hash2(u32) => u32`: Implements the
/// [`StorageDoubleMap`](../frame_support/storage/trait.StorageDoubleMap.html) trait using the
/// [`StorageDoubleMap generator`](../frame_support/storage/generator/trait.StorageDoubleMap.html).
/// And [`StoragePrefixedMap`](../frame_support/storage/trait.StoragePrefixedMap.html).
///
/// `$hash1` and `$hash2` representing choices of hashing algorithms available in the
/// [`Hashable`](../frame_support/trait.Hashable.html) trait. They must be choosen with care, see
substrate/frame/support/procedural/src/storage/mod.rs
+2 -1
View File
@@ -418,7 +418,8 @@ pub fn decl_storage_impl(input: proc_macro::TokenStream) -> proc_macro::TokenStr
StorageValue as _,
StorageMap as _,
StorageLinkedMap as _,
StorageDoubleMap as _
StorageDoubleMap as _,
StoragePrefixedMap as _,
};
#scrate_decl
substrate/frame/support/procedural/src/storage/storage_struct.rs
+36
View File
@@ -122,6 +122,18 @@ pub fn decl_and_impl(scrate: &TokenStream, def: &DeclStorageDefExt) -> TokenStre
StorageLineTypeDef::Map(map) => {
let hasher = map.hasher.to_storage_hasher_struct();
quote!(
impl<#impl_trait> #scrate::storage::StoragePrefixedMap<#value_type>
for #storage_struct #optional_storage_where_clause
{
fn module_prefix() -> &'static [u8] {
#instance_or_inherent::PREFIX.as_bytes()
}
fn storage_prefix() -> &'static [u8] {
#storage_name_str.as_bytes()
}
}
impl<#impl_trait> #scrate::#storage_generator_trait for #storage_struct
#optional_storage_where_clause
{
@@ -155,6 +167,18 @@ pub fn decl_and_impl(scrate: &TokenStream, def: &DeclStorageDefExt) -> TokenStre
);
quote!(
impl<#impl_trait> #scrate::storage::StoragePrefixedMap<#value_type>
for #storage_struct #optional_storage_where_clause
{
fn module_prefix() -> &'static [u8] {
#instance_or_inherent::PREFIX.as_bytes()
}
fn storage_prefix() -> &'static [u8] {
#storage_name_str.as_bytes()
}
}
impl<#impl_trait> #scrate::#storage_generator_trait for #storage_struct
#optional_storage_where_clause
{
@@ -191,6 +215,18 @@ pub fn decl_and_impl(scrate: &TokenStream, def: &DeclStorageDefExt) -> TokenStre
let hasher1 = map.hasher1.to_storage_hasher_struct();
let hasher2 = map.hasher2.to_storage_hasher_struct();
quote!(
impl<#impl_trait> #scrate::storage::StoragePrefixedMap<#value_type>
for #storage_struct #optional_storage_where_clause
{
fn module_prefix() -> &'static [u8] {
#instance_or_inherent::PREFIX.as_bytes()
}
fn storage_prefix() -> &'static [u8] {
#storage_name_str.as_bytes()
}
}
impl<#impl_trait> #scrate::#storage_generator_trait for #storage_struct
#optional_storage_where_clause
{