revmc_builtins::gas

Struct Gas

pub struct Gas {
    limit: u64,
    remaining: u64,
    refunded: i64,
}
Expand description

Represents the state of gas during execution.

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§limit: u64§remaining: u64§refunded: i64

Implementations§

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impl Gas

pub const fn new(limit: u64) -> Gas

Creates a new Gas struct with the given gas limit.

pub const fn new_spent(limit: u64) -> Gas

Creates a new Gas struct with the given gas limit, but without any gas remaining.

pub const fn limit(&self) -> u64

Returns the gas limit.

pub const fn refunded(&self) -> i64

Returns the total amount of gas that was refunded.

pub const fn spent(&self) -> u64

Returns the total amount of gas spent.

pub const fn spent_sub_refunded(&self) -> u64

Returns the total amount of gas spent, minus the refunded gas.

pub const fn remaining(&self) -> u64

Returns the amount of gas remaining.

pub const fn remaining_63_of_64_parts(&self) -> u64

Return remaining gas after subtracting 63/64 parts.

pub fn erase_cost(&mut self, returned: u64)

Erases a gas cost from the totals.

pub fn spend_all(&mut self)

Spends all remaining gas.

pub fn record_refund(&mut self, refund: i64)

Records a refund value.

refund can be negative but self.refunded should always be positive at the end of transact.

pub fn set_final_refund(&mut self, is_london: bool)

Set a refund value for final refund.

Max refund value is limited to Nth part (depending of fork) of gas spend.

Related to EIP-3529: Reduction in refunds

pub fn set_refund(&mut self, refund: i64)

Set a refund value. This overrides the current refund value.

pub fn set_spent(&mut self, spent: u64)

Set a spent value. This overrides the current spent value.

pub fn record_cost(&mut self, cost: u64) -> bool

Records an explicit cost.

Returns false if the gas limit is exceeded.

Trait Implementations§

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impl Clone for Gas

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fn clone(&self) -> Gas

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Gas

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for Gas

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fn default() -> Gas

Returns the “default value” for a type. Read more
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impl Hash for Gas

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Gas

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fn eq(&self, other: &Gas) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for Gas

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impl Eq for Gas

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impl StructuralPartialEq for Gas

Auto Trait Implementations§

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impl Freeze for Gas

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impl RefUnwindSafe for Gas

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impl Send for Gas

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impl Sync for Gas

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impl Unpin for Gas

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impl UnwindSafe for Gas

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Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Causes self to use its Display implementation when Debug-formatted.
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Causes self to use its LowerExp implementation when Debug-formatted.
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Causes self to use its LowerHex implementation when Debug-formatted.
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Causes self to use its Octal implementation when Debug-formatted.
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Causes self to use its UpperExp implementation when Debug-formatted.
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Size: 24 bytes