Enum RuleKind

pub enum RuleKind {
    PointEq(VarIndex, VarIndex),
    NumberEq(VarIndex, VarIndex),
    Lt(VarIndex, VarIndex),
    Gt(VarIndex, VarIndex),
    Alternative(Vec<RuleKind>),
    Invert(Box<RuleKind>),
    Bias,
}

Represents a rule of the figure. Rules are normalized iff:

• their operands are normalized
• their operands are sorted in ascending order

Variants

PointEq(VarIndex, VarIndex)

Equality of two points (distance of 0)

NumberEq(VarIndex, VarIndex)

Equality of two numbers

Lt(VarIndex, VarIndex)

a < b

Gt(VarIndex, VarIndex)

a > b

Alternative(Vec<RuleKind>)

At least one of the rules must be satisfied

Invert(Box<RuleKind>)

The inverse of a rule

Bias

A special bias rule for making the entity more stable in certain engines.

Trait Implementations

impl Clone for RuleKind

fn clone(&self) -> RuleKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RuleKind

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

Formats the value using the given formatter.

impl Display for RuleKind

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

Formats the value using the given formatter.

impl Ord for RuleKind

fn cmp(&self, other: &RuleKind) -> 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 PartialEq for RuleKind

fn eq(&self, other: &RuleKind) -> 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 PartialOrd for RuleKind

fn partial_cmp(&self, other: &RuleKind) -> 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 Reconstruct for RuleKind

fn reconstruct(self, arg0: &mut ReconstructCtx<'_>) -> Self

Reconstruct the value.

impl Reindex for RuleKind

fn reindex(&mut self, map: &IndexMap)

Reindex the expression/rule according to the given map.

impl Eq for RuleKind

impl StructuralPartialEq for RuleKind