Struct Against 

pub struct Against<'a> {
    pub part: &'a Part,
    pub outside: Option<Reader<'a>>,
}

The part a step is edited against, as a run left it — and, for a step of a part placed in the program, edited where it is placed, the part it is placed in, as the step placing it left it: what the step reads there in context (see geop_core_program::placed::OUTSIDE). A part of its own is read as itself.

Fields

part: &'a Part

outside: Option<Reader<'a>>

Implementations

impl<'a> Against<'a>

pub fn current(&self) -> Reader<'a>

The part as it is now (see Part::current).

pub fn after(&self, step: &str) -> Reader<'a>

The part after the step step of the last run (see Part::after).

pub fn before(&self, program: &Program, step: &str) -> GeopResult<Reader<'a>>

The part as it is before the step step of program: before that step as the last run ran it — or, for a step the last run did not run, after the last step before it in program that it did.

Trait Implementations

impl<'a> Clone for Against<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> From<&'a Part> for Against<'a>

fn from(part: &'a Part) -> Self

Converts to this type from the input type.