Struct Witness 

pub struct Witness<'a> { /* private fields */ }

Witness decoded from a CDF file

Implementations

impl<'a> Witness<'a>

pub const fn id(&self) -> usize

Id of the witness in the constraint system

pub const fn constraint(&self) -> Option<usize>

Constraint that originated the witness

pub const fn value(&self) -> &Scalar

Value of the witness in the constraint system

pub const fn line(&self) -> u64

Line of the source code

pub const fn col(&self) -> u64

Column of the source code

pub const fn name(&self) -> &str

Source file name

pub const fn contents(&self) -> &str

Source code contents

Trait Implementations

impl<'a> Clone for Witness<'a>

fn clone(&self) -> Witness<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Witness<'a>

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

Formats the value using the given formatter.

impl<'a> DecodableElement for Witness<'a>

fn try_from_buffer_in_place<'x, 'b>( &'x mut self, ctx: &DecoderContext<'x>, buf: &'b [u8], ) -> Result<()>

Deserialize the type from a given buffer

fn try_from_buffer<'b>(ctx: &DecoderContext<'_>, buf: &'b [u8]) -> Result<Self>

Create a new instance of the type from the provided buffer

fn try_decode_in_place<'a, 'b>( &mut self, ctx: &DecoderContext<'a>, buf: &'b [u8], ) -> Result<&'b [u8]>

Write an element from the buffer, and return the remainder bytes

fn try_decode<'a, 'b>( ctx: &DecoderContext<'a>, buf: &'b [u8], ) -> Result<(Self, &'b [u8])>

Write an element from the buffer, and return the remainder bytes

fn try_from_reader<R>(ctx: &DecoderContext<'_>, reader: R) -> Result<Self>

where R: Read,

Fetch a new element from a context

impl<'a> Default for Witness<'a>

fn default() -> Witness<'a>

Returns the “default value” for a type.

impl<'a> Element for Witness<'a>

fn len(ctx: &Config) -> usize

Serializable length

fn validate(&self, preamble: &Preamble) -> Result<()>

Perform the internal validations of the associated element

fn validate_buffer(config: &Config, buffer: &[u8]) -> Result<()>

Assert the buffer is big enough to store the type

impl<'a> Hash for Witness<'a>

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

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> Ord for Witness<'a>

fn cmp(&self, other: &Witness<'a>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a> PartialEq for Witness<'a>

fn eq(&self, other: &Witness<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

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

impl<'a> PartialOrd for Witness<'a>

fn partial_cmp(&self, other: &Witness<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Eq for Witness<'a>

impl<'a> StructuralPartialEq for Witness<'a>