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Include default values in storage metadata (#1264)

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* Add a 'default' field to metadata. It contains code to generate the
default value.

* wasm update

* Make 'default' field an `Option`

* Boxed fn is not static, that won't be fine

* static fn won't do it to as it cannot get T param, will try fat trait

* Fat pointer over phantom data compatible with static instantiation

* DecodeDifferent is cool, using it for decoding.

* using once cell to do what would require copying lazy_static internals.

* Remove cache when no_std (non compatible deps)

* wasm bins update

* Fuse tooling struct and enum derive.
This commit is contained in:
cheme
2018-12-20 14:31:03 +01:00
committed by Gav Wood
parent 2742975169
commit 23634b6b95
15 changed files with 300 additions and 85 deletions
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substrate/srml/support/procedural/src/storage/mod.rs
+13 -13
View File
@@ -26,7 +26,7 @@ use syn::token::CustomKeyword;
pub mod transformation;
/// Parsing usage only
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct StorageDefinition {
pub hidden_crate: Option<SpecificHiddenCrate>,
pub visibility: syn::Visibility,
@@ -44,30 +44,30 @@ struct StorageDefinition {
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct SpecificHiddenCrate {
pub keyword: ext::CustomToken<SpecificHiddenCrate>,
pub ident: ext::Parens<Ident>,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct AddExtraGenesis {
pub extragenesis_keyword: ext::CustomToken<AddExtraGenesis>,
pub content: ext::Braces<AddExtraGenesisContent>,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct AddExtraGenesisContent {
pub lines: ext::Punctuated<AddExtraGenesisLineEnum, Token![;]>,
}
#[derive(ParseEnum, ToTokensEnum, Debug)]
#[derive(Parse, ToTokens, Debug)]
enum AddExtraGenesisLineEnum {
AddExtraGenesisLine(AddExtraGenesisLine),
AddExtraGenesisBuild(DeclStorageBuild),
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct AddExtraGenesisLine {
pub attrs: ext::OuterAttributes,
pub config_keyword: ext::CustomToken<ConfigKeyword>,
@@ -78,7 +78,7 @@ struct AddExtraGenesisLine {
pub default_value: ext::Seq<DeclStorageDefault>,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageLine {
// attrs (main use case is doc)
pub attrs: ext::OuterAttributes,
@@ -96,31 +96,31 @@ struct DeclStorageLine {
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageGetter {
pub getter_keyword: ext::CustomToken<DeclStorageGetter>,
pub getfn: ext::Parens<Ident>,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageConfig {
pub config_keyword: ext::CustomToken<DeclStorageConfig>,
pub expr: ext::Parens<Option<syn::Ident>>,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageBuild {
pub build_keyword: ext::CustomToken<DeclStorageBuild>,
pub expr: ext::Parens<syn::Expr>,
}
#[derive(ParseEnum, ToTokensEnum, Debug)]
#[derive(Parse, ToTokens, Debug)]
enum DeclStorageType {
Map(DeclStorageMap),
Simple(syn::Type),
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageMap {
pub map_keyword: ext::CustomToken<MapKeyword>,
pub key: syn::Type,
@@ -128,7 +128,7 @@ struct DeclStorageMap {
pub value: syn::Type,
}
#[derive(ParseStruct, ToTokensStruct, Debug)]
#[derive(Parse, ToTokens, Debug)]
struct DeclStorageDefault {
pub equal_token: Token![=],
pub expr: syn::Expr,