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Rename StorageMap::exists to ::contains_key (Resolves #4839) (#4847)

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* rename StorageMap::exists(key) to ::contains_key(key)

* bump impl_version
This commit is contained in:
Alexander Popiak
2020-02-08 20:31:35 +01:00
committed by GitHub
parent 503bfc9da9
commit cb567d6b8b
26 changed files with 100 additions and 100 deletions
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substrate/frame/support/src/storage/mod.rs
+6 -6
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@@ -126,7 +126,7 @@ pub trait StorageMap<K: FullEncode, V: FullCodec> {
fn hashed_key_for<KeyArg: EncodeLike<K>>(key: KeyArg) -> Vec<u8>;
/// Does the value (explicitly) exist in storage?
fn exists<KeyArg: EncodeLike<K>>(key: KeyArg) -> bool;
fn contains_key<KeyArg: EncodeLike<K>>(key: KeyArg) -> bool;
/// Load the value associated with the given key from the map.
fn get<KeyArg: EncodeLike<K>>(key: KeyArg) -> Self::Query;
@@ -176,7 +176,7 @@ pub trait StorageMap<K: FullEncode, V: FullCodec> {
/// `T` is required to implement `Codec::DecodeLength`.
///
/// Note that `0` is returned as the default value if no encoded value exists at the given key.
/// Therefore, this function cannot be used as a sign of _existence_. use the `::exists()`
/// Therefore, this function cannot be used as a sign of _existence_. use the `::contains_key()`
/// function for this purpose.
fn decode_len<KeyArg: EncodeLike<K>>(key: KeyArg) -> Result<usize, &'static str>
where V: codec::DecodeLength + Len;
@@ -196,7 +196,7 @@ pub trait StorageLinkedMap<K: FullCodec, V: FullCodec> {
type Enumerator: Iterator<Item = (K, V)>;
/// Does the value (explicitly) exist in storage?
fn exists<KeyArg: EncodeLike<K>>(key: KeyArg) -> bool;
fn contains_key<KeyArg: EncodeLike<K>>(key: KeyArg) -> bool;
/// Load the value associated with the given key from the map.
fn get<KeyArg: EncodeLike<K>>(key: KeyArg) -> Self::Query;
@@ -227,7 +227,7 @@ pub trait StorageLinkedMap<K: FullCodec, V: FullCodec> {
/// `T` is required to implement `Codec::DecodeLength`.
///
/// Note that `0` is returned as the default value if no encoded value exists at the given key.
/// Therefore, this function cannot be used as a sign of _existence_. use the `::exists()`
/// Therefore, this function cannot be used as a sign of _existence_. use the `::contains_key()`
/// function for this purpose.
fn decode_len<KeyArg: EncodeLike<K>>(key: KeyArg) -> Result<usize, &'static str>
where V: codec::DecodeLength + Len;
@@ -270,7 +270,7 @@ pub trait StorageDoubleMap<K1: FullEncode, K2: FullEncode, V: FullCodec> {
KArg1: EncodeLike<K1>,
KArg2: EncodeLike<K2>;
fn exists<KArg1, KArg2>(k1: KArg1, k2: KArg2) -> bool
fn contains_key<KArg1, KArg2>(k1: KArg1, k2: KArg2) -> bool
where
KArg1: EncodeLike<K1>,
KArg2: EncodeLike<K2>;
@@ -348,7 +348,7 @@ pub trait StorageDoubleMap<K1: FullEncode, K2: FullEncode, V: FullCodec> {
/// `V` is required to implement `Codec::DecodeLength`.
///
/// Note that `0` is returned as the default value if no encoded value exists at the given key.
/// Therefore, this function cannot be used as a sign of _existence_. use the `::exists()`
/// Therefore, this function cannot be used as a sign of _existence_. use the `::contains_key()`
/// function for this purpose.
fn decode_len<KArg1, KArg2>(key1: KArg1, key2: KArg2) -> Result<usize, &'static str>
where