Struct odra::ContractEnv

impl ContractEnv

pub const fn new( index: u32, backend: Rc<RefCell<dyn ContractContext>> ) -> ContractEnv

Creates a new ContractEnv instance.

pub fn get_value<T>(&self, key: &[u8]) -> Option<T>
where T: FromBytes,

Retrieves the value associated with the given key from the contract storage.

§Returns

The value associated with the key, if it exists.

pub fn set_value<T>(&self, key: &[u8], value: T)
where T: ToBytes + CLTyped,

Sets the value associated with the given key in the contract storage.

pub fn caller(&self) -> Address

Returns the address of the caller of the contract.

pub fn call_contract<T>(&self, address: Address, call: CallDef) -> T
where T: FromBytes,

Calls another contract with the specified address and call definition.

§Returns

The result of the contract call. If any error occurs during the call, the contract will revert.

pub fn self_address(&self) -> Address

Returns the address of the current contract.

pub fn transfer_tokens(&self, to: &Address, amount: &U512)

Transfers tokens to the specified address.

pub fn get_block_time(&self) -> u64

Returns the current block time as u64 value.

pub fn attached_value(&self) -> U512

Returns the value attached to the contract call.

pub fn self_balance(&self) -> U512

Returns the CSPR balance of the current contract.

pub fn revert<E>(&self, error: E) -> !
where E: Into<OdraError>,

Reverts the contract execution with the specified error.

pub fn emit_event<T>(&self, event: T)
where T: ToBytes,

Emits an event with the specified data.

pub fn verify_signature( &self, message: &Bytes, signature: &Bytes, public_key: &PublicKey ) -> bool

Verifies the signature of a message using the specified signature, public key, and message.

§Arguments

message - The message to verify.
signature - The signature to verify.
public_key - The public key to use for verification.

§Returns

true if the signature is valid, false otherwise.

pub fn hash<T>(&self, value: T) -> [u8; 32]
where T: ToBytes,

Hashes the specified value.

§Returns

The hash value as a 32-byte array.

Trait Implementations§

impl Clone for ContractEnv

fn clone(&self) -> ContractEnv

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

impl !UnwindSafe for ContractEnv

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into a target type. Read more

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fn __clone_box(&self, _: Private) -> *mut ()

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.

fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.

fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.

fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.

fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.

fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.

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Returns the argument unchanged.

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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

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fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: AsRef<T>, T: 'a, R: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

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where Self: AsMut<T>, T: 'a, R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

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Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

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where Self: BorrowMut<T>, T: 'a, R: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

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fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R
where Self: Deref, R: 'a,

Pipes a dereference into a function that cannot normally be called in suffix position. Read more

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where Self: DerefMut, R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

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fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

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type Output = T

Should always be Self

impl<T> Tap for T

fn tap<F, R>(self, func: F) -> Self
where F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more

fn tap_dbg<F, R>(self, func: F) -> Self
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Calls tap in debug builds, and does nothing in release builds.

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Provides mutable access for modification. Read more

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where F: FnOnce(&mut Self) -> R,

Calls tap_mut in debug builds, and does nothing in release builds.

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fn tap_ref<F, R>(self, func: F) -> Self
where Self: AsRef<T>, F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.

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Calls tap_ref in debug builds, and does nothing in release builds.

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where Self: AsMut<T>, F: FnOnce(&mut T) -> R,

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where Self: AsMut<T>, F: FnOnce(&mut T) -> R,

Calls tap_ref_mut in debug builds, and does nothing in release builds.

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where Self: Borrow<T>, F: FnOnce(&T) -> R,

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Calls tap_borrow in debug builds, and does nothing in release builds.

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Calls tap_borrow_mut in debug builds, and does nothing in release builds.

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where Self: DerefMut, F: FnOnce(&mut Self::Target) -> R,

Calls tap_deref_mut in debug builds, and does nothing in release builds.

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type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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