Struct modus_lib::sld::Tree

source · [−]

pub struct Tree { /* private fields */ }

Expand description

An SLD tree consists of

a goal with its dependencies (at which level and from which part of body each literal was introduced)
a level, which is incremented as tree grows
a mapping from (selected literal in goal, applied rule) to (mgu after rule renaming, rule renaming, resolvent subtree)

Implementations

impl Tree

pub fn to_graph(&self, rules: &[Clause ]) -> Graph

Converts this tree to a directed graph.

pub fn explain(&self, rules: &[Clause ]) -> StringItem

Returns a string explaining the SLD tree, using indentation, etc.

Trait Implementations

impl Clone for Tree

fn clone(&self) -> Tree

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for Tree

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

Formats the value using the given formatter. Read more

impl PartialEq<Tree> for Tree

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

impl StructuralPartialEq for Tree

Auto Trait Implementations

impl RefUnwindSafe for Tree

impl Send for Tree

impl Sync for Tree

impl Unpin for Tree

impl UnwindSafe for Tree

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<I, T> ExtractContext<I, ()> for T

fn extract_context(self, _original_input: I)

Given the context attached to a nom error, and given the original input to the nom parser, extract more the useful context information. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<I> RecreateContext<I> for I

fn recreate_context(_original_input: I, tail: I) -> I

Given the original input, as well as the context reported by nom, recreate a context in the original string where the error occurred. Read more

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.