EvmEnv

cast

Struct EvmEnv 

pub struct EvmEnv<Spec = SpecId, BlockEnv = BlockEnv> {
    pub cfg_env: CfgEnv<Spec>,
    pub block_env: BlockEnv,
}
Expand description

Container type that holds both the configuration and block environment for EVM execution.

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§cfg_env: CfgEnv<Spec>

The configuration environment with handler settings

§block_env: BlockEnv

The block environment containing block-specific data

Implementations§

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impl EvmEnv

pub fn for_eth_block( header: impl BlockHeader, chain_spec: impl EthereumHardforks, chain_id: u64, blob_params: Option<BlobParams>, ) -> EvmEnv

Create a new EvmEnv with SpecId from a block header, chain_id, chain_spec and optional blob_params.

§Arguments
  • header - The block to make the env out of.
  • chain_spec - The chain hardfork description, must implement [EthereumHardforks].
  • chain_id - The chain identifier.
  • blob_params - Optional parameters that sets limits on gas and count for blobs.

pub fn for_eth_next_block( header: impl BlockHeader, attributes: NextEvmEnvAttributes, base_fee_per_gas: u64, chain_spec: impl EthereumHardforks, chain_id: u64, blob_params: Option<BlobParams>, ) -> EvmEnv

Create a new EvmEnv with SpecId from a parent block header, chain_id, chain_spec and optional blob_params.

§Arguments
  • header - The parent block to make the env out of.
  • base_fee_per_gas - Base fee per gas for the next block.
  • chain_spec - The chain hardfork description, must implement [EthereumHardforks].
  • chain_id - The chain identifier.
  • blob_params - Optional parameters that sets limits on gas and count for blobs.
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impl<Spec, BlockEnv> EvmEnv<Spec, BlockEnv>

pub const fn new( cfg_env: CfgEnv<Spec>, block_env: BlockEnv, ) -> EvmEnv<Spec, BlockEnv>

Create a new EvmEnv from its components.

§Arguments
  • cfg_env_with_handler_cfg - The configuration environment with handler settings
  • block - The block environment containing block-specific data
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impl<Spec, BlockEnv> EvmEnv<Spec, BlockEnv>
where BlockEnv: BlockEnvironment,

pub fn map_block_env<NewBlockEnv>( self, f: impl FnOnce(BlockEnv) -> NewBlockEnv, ) -> EvmEnv<Spec, NewBlockEnv>

Sets an extension on the environment.

pub const fn block_env(&self) -> &BlockEnv

Returns a reference to the block environment.

pub const fn cfg_env(&self) -> &CfgEnv<Spec>

Returns a reference to the configuration environment.

pub const fn chainid(&self) -> u64

Returns the chain ID of the environment.

pub const fn spec_id(&self) -> &Spec

Returns the spec id of the chain

pub fn with_block_number(self, number: Uint<256, 4>) -> EvmEnv<Spec, BlockEnv>

Overrides the configured block number

pub fn with_block_number_opt( self, number: Option<Uint<256, 4>>, ) -> EvmEnv<Spec, BlockEnv>

Convenience function that overrides the configured block number with the given Some(number).

This is intended for block overrides.

pub fn set_block_number_opt( &mut self, number: Option<Uint<256, 4>>, ) -> &mut EvmEnv<Spec, BlockEnv>

Sets the block number if provided.

pub fn with_timestamp(self, timestamp: Uint<256, 4>) -> EvmEnv<Spec, BlockEnv>

Overrides the configured block timestamp.

pub fn with_timestamp_opt( self, timestamp: Option<Uint<256, 4>>, ) -> EvmEnv<Spec, BlockEnv>

Convenience function that overrides the configured block timestamp with the given Some(timestamp).

This is intended for block overrides.

pub fn set_timestamp_opt( &mut self, timestamp: Option<Uint<256, 4>>, ) -> &mut EvmEnv<Spec, BlockEnv>

Sets the block timestamp if provided.

pub fn with_base_fee(self, base_fee: u64) -> EvmEnv<Spec, BlockEnv>

Overrides the configured block base fee.

pub fn with_base_fee_opt(self, base_fee: Option<u64>) -> EvmEnv<Spec, BlockEnv>

Convenience function that overrides the configured block base fee with the given Some(base_fee).

This is intended for block overrides.

pub fn set_base_fee_opt( &mut self, base_fee: Option<u64>, ) -> &mut EvmEnv<Spec, BlockEnv>

Sets the block base fee if provided.

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impl EvmEnv<OpSpecId>

pub fn for_op_block( header: impl BlockHeader, chain_spec: impl OpHardforks, chain_id: u64, ) -> EvmEnv<OpSpecId>

Create a new EvmEnv with [OpSpecId] from a block header, chain_id and chain_spec.

§Arguments
  • header - The block to make the env out of.
  • chain_spec - The chain hardfork description, must implement [OpHardforks].
  • chain_id - The chain identifier.
  • blob_params - Optional parameters that sets limits on gas and count for blobs.

pub fn for_op_next_block( header: impl BlockHeader, attributes: NextEvmEnvAttributes, base_fee_per_gas: u64, chain_spec: impl OpHardforks, chain_id: u64, ) -> EvmEnv<OpSpecId>

Create a new EvmEnv with SpecId from a parent block header, chain_id and chain_spec.

§Arguments
  • header - The parent block to make the env out of.
  • base_fee_per_gas - Base fee per gas for the next block.
  • chain_spec - The chain hardfork description, must implement [OpHardforks].
  • chain_id - The chain identifier.

Trait Implementations§

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impl<Spec, BlockEnv> Clone for EvmEnv<Spec, BlockEnv>
where Spec: Clone, BlockEnv: Clone,

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fn clone(&self) -> EvmEnv<Spec, BlockEnv>

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl<Spec, BlockEnv> Debug for EvmEnv<Spec, BlockEnv>
where Spec: Debug, BlockEnv: Debug,

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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<Spec, BlockEnv> Default for EvmEnv<Spec, BlockEnv>
where Spec: Default, BlockEnv: Default,

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fn default() -> EvmEnv<Spec, BlockEnv>

Returns the “default value” for a type. Read more
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impl<Spec, BlockEnv> From<(CfgEnv<Spec>, BlockEnv)> for EvmEnv<Spec, BlockEnv>

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fn from(_: (CfgEnv<Spec>, BlockEnv)) -> EvmEnv<Spec, BlockEnv>

Converts to this type from the input type.
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impl<Spec, BlockEnv> PartialEq for EvmEnv<Spec, BlockEnv>
where Spec: PartialEq, BlockEnv: PartialEq,

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fn eq(&self, other: &EvmEnv<Spec, BlockEnv>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

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<Spec, BlockEnv> Eq for EvmEnv<Spec, BlockEnv>
where Spec: Eq, BlockEnv: Eq,

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impl<Spec, BlockEnv> StructuralPartialEq for EvmEnv<Spec, BlockEnv>

Auto Trait Implementations§

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impl<Spec, BlockEnv> Freeze for EvmEnv<Spec, BlockEnv>
where BlockEnv: Freeze, Spec: Freeze,

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impl<Spec, BlockEnv> RefUnwindSafe for EvmEnv<Spec, BlockEnv>
where BlockEnv: RefUnwindSafe, Spec: RefUnwindSafe,

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impl<Spec, BlockEnv> Send for EvmEnv<Spec, BlockEnv>
where BlockEnv: Send, Spec: Send,

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impl<Spec, BlockEnv> Sync for EvmEnv<Spec, BlockEnv>
where BlockEnv: Sync, Spec: Sync,

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impl<Spec, BlockEnv> Unpin for EvmEnv<Spec, BlockEnv>
where BlockEnv: Unpin, Spec: Unpin,

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impl<Spec, BlockEnv> UnwindSafe for EvmEnv<Spec, BlockEnv>
where BlockEnv: UnwindSafe, Spec: UnwindSafe,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
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type Output = R

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impl<T> Conv for T

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

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> FmtForward for T

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

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

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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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<TxEnv, T> FromRecoveredTx<&T> for TxEnv
where TxEnv: FromRecoveredTx<T>,

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fn from_recovered_tx(tx: &&T, sender: Address) -> TxEnv

Builds a TxEnv from a transaction and a sender address.
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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
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impl<TxEnv, T> FromTxWithEncoded<&T> for TxEnv
where TxEnv: FromTxWithEncoded<T>,

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fn from_encoded_tx(tx: &&T, sender: Address, encoded: Bytes) -> TxEnv

Builds a TxEnv from a transaction, its sender, and encoded transaction bytes.
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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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where L: Layer<S>,

Applies the layer to a service and wraps it in [Layered].
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impl<D> OwoColorize for D

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fn fg<C>(&self) -> FgColorDisplay<'_, C, Self>
where C: Color,

Set the foreground color generically Read more
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fn bg<C>(&self) -> BgColorDisplay<'_, C, Self>
where C: Color,

Set the background color generically. Read more
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fn black(&self) -> FgColorDisplay<'_, Black, Self>

Change the foreground color to black
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fn on_black(&self) -> BgColorDisplay<'_, Black, Self>

Change the background color to black
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fn red(&self) -> FgColorDisplay<'_, Red, Self>

Change the foreground color to red
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fn on_red(&self) -> BgColorDisplay<'_, Red, Self>

Change the background color to red
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fn green(&self) -> FgColorDisplay<'_, Green, Self>

Change the foreground color to green
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fn on_green(&self) -> BgColorDisplay<'_, Green, Self>

Change the background color to green
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fn yellow(&self) -> FgColorDisplay<'_, Yellow, Self>

Change the foreground color to yellow
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fn on_yellow(&self) -> BgColorDisplay<'_, Yellow, Self>

Change the background color to yellow
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fn blue(&self) -> FgColorDisplay<'_, Blue, Self>

Change the foreground color to blue
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fn on_blue(&self) -> BgColorDisplay<'_, Blue, Self>

Change the background color to blue
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fn magenta(&self) -> FgColorDisplay<'_, Magenta, Self>

Change the foreground color to magenta
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fn on_magenta(&self) -> BgColorDisplay<'_, Magenta, Self>

Change the background color to magenta
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fn purple(&self) -> FgColorDisplay<'_, Magenta, Self>

Change the foreground color to purple
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fn on_purple(&self) -> BgColorDisplay<'_, Magenta, Self>

Change the background color to purple
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fn cyan(&self) -> FgColorDisplay<'_, Cyan, Self>

Change the foreground color to cyan
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fn on_cyan(&self) -> BgColorDisplay<'_, Cyan, Self>

Change the background color to cyan
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fn white(&self) -> FgColorDisplay<'_, White, Self>

Change the foreground color to white
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fn on_white(&self) -> BgColorDisplay<'_, White, Self>

Change the background color to white
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fn default_color(&self) -> FgColorDisplay<'_, Default, Self>

Change the foreground color to the terminal default
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fn on_default_color(&self) -> BgColorDisplay<'_, Default, Self>

Change the background color to the terminal default
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fn bright_black(&self) -> FgColorDisplay<'_, BrightBlack, Self>

Change the foreground color to bright black
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fn on_bright_black(&self) -> BgColorDisplay<'_, BrightBlack, Self>

Change the background color to bright black
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fn bright_red(&self) -> FgColorDisplay<'_, BrightRed, Self>

Change the foreground color to bright red
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fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>

Change the background color to bright red
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fn bright_green(&self) -> FgColorDisplay<'_, BrightGreen, Self>

Change the foreground color to bright green
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fn on_bright_green(&self) -> BgColorDisplay<'_, BrightGreen, Self>

Change the background color to bright green
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fn bright_yellow(&self) -> FgColorDisplay<'_, BrightYellow, Self>

Change the foreground color to bright yellow
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fn on_bright_yellow(&self) -> BgColorDisplay<'_, BrightYellow, Self>

Change the background color to bright yellow
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fn bright_blue(&self) -> FgColorDisplay<'_, BrightBlue, Self>

Change the foreground color to bright blue
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fn on_bright_blue(&self) -> BgColorDisplay<'_, BrightBlue, Self>

Change the background color to bright blue
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fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright magenta
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fn on_bright_magenta(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright magenta
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fn bright_purple(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright purple
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fn on_bright_purple(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright purple
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fn bright_cyan(&self) -> FgColorDisplay<'_, BrightCyan, Self>

Change the foreground color to bright cyan
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fn on_bright_cyan(&self) -> BgColorDisplay<'_, BrightCyan, Self>

Change the background color to bright cyan
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fn bright_white(&self) -> FgColorDisplay<'_, BrightWhite, Self>

Change the foreground color to bright white
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fn on_bright_white(&self) -> BgColorDisplay<'_, BrightWhite, Self>

Change the background color to bright white
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fn bold(&self) -> BoldDisplay<'_, Self>

Make the text bold
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fn dimmed(&self) -> DimDisplay<'_, Self>

Make the text dim
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fn italic(&self) -> ItalicDisplay<'_, Self>

Make the text italicized
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fn underline(&self) -> UnderlineDisplay<'_, Self>

Make the text underlined
Make the text blink
Make the text blink (but fast!)
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fn reversed(&self) -> ReversedDisplay<'_, Self>

Swap the foreground and background colors
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fn hidden(&self) -> HiddenDisplay<'_, Self>

Hide the text
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fn strikethrough(&self) -> StrikeThroughDisplay<'_, Self>

Cross out the text
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fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the foreground color at runtime. Only use if you do not know which color will be used at compile-time. If the color is constant, use either [OwoColorize::fg] or a color-specific method, such as [OwoColorize::green], Read more
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fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the background color at runtime. Only use if you do not know what color to use at compile-time. If the color is constant, use either [OwoColorize::bg] or a color-specific method, such as [OwoColorize::on_yellow], Read more
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fn fg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the foreground color to a specific RGB value.
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fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the background color to a specific RGB value.
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fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>

Sets the foreground color to an RGB value.
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fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>

Sets the background color to an RGB value.
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fn style(&self, style: Style) -> Styled<&Self>

Apply a runtime-determined style
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impl<T> Paint for T
where T: ?Sized,

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fn fg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the foreground set to value.

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Set foreground color to white using fg():

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Set foreground color to white using white().

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fn primary(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Primary].

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Returns self with the fg() set to [Color :: Fixed].

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Returns self with the fg() set to [Color :: Rgb].

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Returns self with the fg() set to [Color :: Black].

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fn red(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Red].

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Returns self with the fg() set to [Color :: Green].

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fn yellow(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Yellow].

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fn blue(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Blue].

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fn magenta(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Magenta].

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fn cyan(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Cyan].

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fn white(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: White].

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fn bright_black(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightBlack].

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fn bright_red(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightRed].

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fn bright_green(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightGreen].

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fn bright_yellow(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightYellow].

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fn bright_blue(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightBlue].

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fn bright_magenta(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightMagenta].

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fn bright_cyan(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightCyan].

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fn bright_white(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightWhite].

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fn bg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the background set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like on_red() and on_green(), which have the same functionality but are pithier.

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Set background color to red using fg():

use yansi::{Paint, Color};

painted.bg(Color::Red);

Set background color to red using on_red().

use yansi::Paint;

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fn on_primary(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Primary].

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fn on_fixed(&self, color: u8) -> Painted<&T>

Returns self with the bg() set to [Color :: Fixed].

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fn on_rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the bg() set to [Color :: Rgb].

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fn on_black(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Black].

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fn on_red(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Red].

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fn on_green(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Green].

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fn on_yellow(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Yellow].

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fn on_blue(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Blue].

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fn on_magenta(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Magenta].

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fn on_cyan(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Cyan].

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fn on_white(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: White].

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fn on_bright_black(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightBlack].

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Returns self with the bg() set to [Color :: BrightRed].

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Returns self with the bg() set to [Color :: BrightGreen].

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Returns self with the bg() set to [Color :: BrightYellow].

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Returns self with the bg() set to [Color :: BrightBlue].

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Returns self with the bg() set to [Color :: BrightMagenta].

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Returns self with the bg() set to [Color :: BrightCyan].

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Returns self with the bg() set to [Color :: BrightWhite].

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fn attr(&self, value: Attribute) -> Painted<&T>

Enables the styling [Attribute] value.

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Make text bold using using bold().

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Returns self with the attr() set to [Attribute :: Bold].

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Returns self with the attr() set to [Attribute :: Dim].

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Returns self with the attr() set to [Attribute :: Italic].

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Returns self with the attr() set to [Attribute :: Underline].

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Returns self with the attr() set to [Attribute :: Blink].

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Returns self with the attr() set to [Attribute :: RapidBlink].

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Returns self with the attr() set to [Attribute :: Invert].

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Returns self with the attr() set to [Attribute :: Conceal].

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Enables the yansi [Quirk] value.

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Returns self with the quirk() set to [Quirk :: Mask].

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Returns self with the quirk() set to [Quirk :: Wrap].

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Returns self with the quirk() set to [Quirk :: Linger].

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fn clear(&self) -> Painted<&T>

👎Deprecated since 1.0.1: renamed to resetting() due to conflicts with Vec::clear(). The clear() method will be removed in a future release.

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Returns self with the quirk() set to [Quirk :: Resetting].

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Returns self with the quirk() set to [Quirk :: Bright].

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fn whenever(&self, value: Condition) -> Painted<&T>

Conditionally enable styling based on whether the [Condition] value applies. Replaces any previous condition.

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fn new(self) -> Painted<Self>
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Create a new [Painted] with a default [Style]. Read more
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Apply a style wholesale to self. Any previous style is replaced. Read more
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
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Pipes by value. This is generally the method you want to use. Read more
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Borrows self and passes that borrow into the pipe function. Read more
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Mutably borrows self, then passes self.as_mut() into the pipe function.
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Mutably borrows self, then passes self.deref_mut() into the pipe function.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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impl<T> PolicyExt for T
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Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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type Output = T

Should always be Self
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impl<T> Tap for T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
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Mutable access to a value. Read more
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Immutable access to the Borrow<B> of a value. Read more
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Mutable access to the BorrowMut<B> of a value. Read more
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Immutable access to the AsRef<R> view of a value. Read more
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Mutable access to the AsMut<R> view of a value. Read more
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Immutable access to the Deref::Target of a value. Read more
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Clones self, possibly returning an error.
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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.