Struct eosio_system::GLOBAL

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pub struct GLOBAL { /* fields omitted */ }

Methods from Deref<Target = SingletonIndex<EosioGlobalState>>

[+] Expand attributes

#[must_use] pub fn exists(&self) -> bool[−]

Checks if the singleton entry exists

[+] Expand attributes

#[must_use] pub fn get(&self) -> Option<Result<<T as Table>::Row, ReadError>>[−]

Gets the value stored inside the singleton. Returns None if no value is found, or ReadError if there was an issue reading the data.

pub fn get_or_default(&self) -> Result<<T as Table>::Row, ReadError> where
    <T as Table>::Row: Default, [−]

Gets the value stored inside the singleton or returns the default value.

Errors

Will return Err if there was an issue deserializing the stored value.

pub fn set(
    &self,
    value: &<T as Table>::Row,
    payer: AccountName
) -> Result<(), WriteError>[−]

Sets the singleton value

Errors

Will return Err if there was an issue serializing the value.

pub fn remove(&self) -> Result<Option<<T as Table>::Row>, ReadError>[−]

Removes the singleton value if it exists. Returns ReadError if there was an issue reading the data, and None if there was no entry found

Errors

Will return Err if there was an issue reading the stored value.

Trait Implementations

impl Deref for GLOBAL[+]

[+] Show hidden undocumented items

type Target = SingletonIndex<EosioGlobalState>

The resulting type after dereferencing.

fn deref(&self) -> &SingletonIndex<EosioGlobalState>[−]

Dereferences the value.

impl LazyStatic for GLOBAL[+]

[+] Show hidden undocumented items

fn initialize(lazy: &Self)