Struct mexprp::Expression

pub struct Expression<N: Num> {
    pub string: String,
    pub ctx: Context<N>,
    pub term: Term<N>,
}

The main Expression struct. Contains the string that was originally requested to be parsed, the context the Expression was parsed with, and the Term the raw form was parsed as. For just the parsed version of the expression, use the Term enum.

Fields

string: String

The original string passed into this expression

ctx: Context<N>

Context the expression was parsed with

term: Term<N>

The term this string has been parsed as

Implementations

impl<N: Num + 'static> Expression<N>

pub fn parse(raw: &str) -> Result<Self, ParseError>

Parse a string into an expression

pub fn parse_ctx(raw: &str, ctx: Context<N>) -> Result<Self, ParseError>

Parse a string into an expression with the given context

pub fn eval(&self) -> Calculation<N>

Evaluate the expression

pub fn eval_ctx(&self, ctx: &Context<N>) -> Calculation<N>

Evaluate the expression with the given context

Trait Implementations

impl<N: Clone + Num> Clone for Expression<N>

fn clone(&self) -> Expression<N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N: Debug + Num> Debug for Expression<N>

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

Formats the value using the given formatter.

impl<N: Num> Display for Expression<N>

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

Formats the value using the given formatter.

impl<N: Num> From<Expression<N>> for Term<N>

fn from(t: Expression<N>) -> Term<N>

Converts to this type from the input type.