Struct stack_graphs::partial::PartialScopedSymbol

#[repr(C)]
pub struct PartialScopedSymbol {
    pub symbol: Handle<Symbol>,
    pub scopes: ControlledOption<PartialScopeStack>,
}

A symbol with an unknown, but possibly empty, list of exported scopes attached to it.

Fields

symbol: Handle<Symbol>

scopes: ControlledOption<PartialScopeStack>

Implementations

impl PartialScopedSymbol

pub fn with_offset(self, scope_variable_offset: u32) -> PartialScopedSymbol

Applies an offset to this scoped symbol.

When concatenating partial paths, we have to ensure that the left- and right-hand sides have non-overlapping sets of variables. To do this, we find the maximum value of any variable on the left-hand side, and add this “offset” to the values of all of the variables on the right-hand side.

pub fn match_symbol(
    self,
    graph: &StackGraph,
    symbol: ScopedSymbol,
    scope_bindings: &mut ScopeStackBindings
) -> Result<(), PathResolutionError>

Matches this precondition symbol against a scoped symbol, unifying its contents with an existing set of bindings.

pub fn unify(
    &mut self,
    partials: &mut PartialPaths,
    rhs: PartialScopedSymbol,
    scope_bindings: &mut PartialScopeStackBindings
) -> Result<(), PathResolutionError>

Matches this precondition symbol against another, unifying its contents with an existing set of bindings.

pub fn matches(
    self,
    partials: &mut PartialPaths,
    postcondition: PartialScopedSymbol
) -> bool

Returns whether two partial scoped symbols “match”. The symbols must be identical, and any attached scopes must also match.

pub fn apply_bindings(
    self,
    paths: &mut Paths,
    partials: &mut PartialPaths,
    scope_bindings: &ScopeStackBindings
) -> Result<ScopedSymbol, PathResolutionError>

Applies a set of bindings to this partial scoped symbol, producing a new scoped symbol.

pub fn apply_partial_bindings(
    self,
    partials: &mut PartialPaths,
    scope_bindings: &PartialScopeStackBindings
) -> Result<PartialScopedSymbol, PathResolutionError>

Applies a set of bindings to this partial scoped symbol, producing a new scoped symbol.

pub fn equals(
    &self,
    partials: &mut PartialPaths,
    other: &PartialScopedSymbol
) -> bool

pub fn cmp(
    &self,
    graph: &StackGraph,
    partials: &mut PartialPaths,
    other: &PartialScopedSymbol
) -> Ordering

pub fn display<'a>(
    self,
    graph: &'a StackGraph,
    partials: &'a mut PartialPaths
) -> impl Display + 'a

Trait Implementations

impl Clone for PartialScopedSymbol

fn clone(&self) -> PartialScopedSymbol

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Into<PartialScopedSymbol> for sg_partial_scoped_symbol

fn into(self) -> PartialScopedSymbol

Performs the conversion.

impl Copy for PartialScopedSymbol