Struct SymExpr 

pub struct SymExpr<'db>(Id, PhantomData<&'db Value<SymExpr<'static>>>);

Tuple Fields

0: Id

1: PhantomData<&'db Value<SymExpr<'static>>>

Implementations

impl<'db> SymExpr<'db>

pub(crate) fn into_temporary( self, db: &'db dyn Db, temporaries: &mut Vec<Temporary<'db>>, ) -> SymPlaceExpr<'db>

Create a temporary to store the result of this expression.

Returns a reference to the temporary as a place expression.

pub(crate) fn into_temporary_var( self, db: &'db dyn Db, temporaries: &mut Vec<Temporary<'db>>, ) -> SymVariable<'db>

Create a temporary to store the result of this expression.

Returns a reference to the temporary as a variable.

impl SymExpr<'static>

pub fn ingredient(db: &dyn Database) -> &IngredientImpl<SymExpr<'static>>

impl<'db> SymExpr<'db>

pub fn new<Db_>( db: &'db Db_, span: Span<'db>, ty: SymTy<'db>, kind: SymExprKind<'db>, ) -> Self

where Db_: ?Sized + Database,

pub fn span<Db_>(self, db: &'db Db_) -> Span<'db>

where Db_: ?Sized + Database,

pub fn ty<Db_>(self, db: &'db Db_) -> SymTy<'db>

where Db_: ?Sized + Database,

pub fn kind<Db_>(self, db: &'db Db_) -> &'db SymExprKind<'db>

where Db_: ?Sized + Database,

impl<'_db> SymExpr<'_db>

pub fn default_debug_fmt(this: Self, f: &mut Formatter<'_>) -> Result

where for<'db> Span<'db>: Debug, for<'db> SymTy<'db>: Debug, for<'db> SymExprKind<'db>: Debug,

Default debug formatting for this struct (may be useful if you define your own Debug impl)

impl<'db> SymExpr<'db>

pub(crate) fn false_literal(db: &'db dyn Db, span: Span<'db>) -> SymExpr<'db>

Create an expression like false

pub(crate) fn true_literal(db: &'db dyn Db, span: Span<'db>) -> SymExpr<'db>

Create an expression like true

pub(crate) fn if_then_else( db: &'db dyn Db, span: Span<'db>, condition: SymExpr<'db>, if_true: SymExpr<'db>, if_false: SymExpr<'db>, ) -> SymExpr<'db>

Create an expression like if $condition { $if_true } else { $if_false }

Trait Implementations

impl AsId for SymExpr<'_>

fn as_id(&self) -> Id

impl<'db> Clone for SymExpr<'db>

fn clone(&self) -> SymExpr<'db>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Configuration for SymExpr<'static>

const DEBUG_NAME: &'static str = "SymExpr"

The debug name of the tracked struct.

const FIELD_DEBUG_NAMES: &'static [&'static str]

The debug names of any fields.

const TRACKED_FIELD_INDICES: &'static [usize]

The relative indices of any tracked fields.

type Fields<'db> = (Span<'db>, SymTy<'db>, SymExprKind<'db>)

A (possibly empty) tuple of the fields for this struct.

type Revisions = Array<Revision, 0>

A array of [Revision][] values, one per each of the tracked value fields. When a struct is re-recreated in a new revision, the corresponding entries for each field are updated to the new revision if their values have changed (or if the field is marked as #[no_eq]).

type Struct<'db> = SymExpr<'db>

fn struct_from_id<'db>(id: Id) -> Self::Struct<'db>

Create an end-user struct from the underlying raw pointer.

fn deref_struct(s: Self::Struct<'_>) -> Id

Deref the struct to yield the underlying id.

fn untracked_fields(fields: &Self::Fields<'_>) -> impl Hash

fn new_revisions(current_revision: Revision_) -> Self::Revisions

Create a new value revision array where each element is set to current_revision.

unsafe fn update_fields<'db>( current_revision: Revision_, revisions: &mut Self::Revisions, old_fields: *mut Self::Fields<'db>, new_fields: Self::Fields<'db>, ) -> bool

Update the field data and, if the value has changed, the appropriate entry in the revisions array (tracked fields only).

impl Debug for SymExpr<'_>

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

Formats the value using the given formatter.

impl<'db> Err<'db> for SymExpr<'db>

fn err(db: &'db dyn Db, r: Reported) -> Self

impl<'db> From<SymExpr<'db>> for ExprResultKind<'db>

fn from(value: SymExpr<'db>) -> Self

Converts to this type from the input type.

impl<'db> FromId for SymExpr<'db>

fn from_id(id: Id) -> Self

impl<'db> Hash for SymExpr<'db>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'db> Ord for SymExpr<'db>

fn cmp(&self, other: &SymExpr<'db>) -> 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<'db> PartialEq for SymExpr<'db>

fn eq(&self, other: &SymExpr<'db>) -> 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<'db> PartialOrd for SymExpr<'db>

fn partial_cmp(&self, other: &SymExpr<'db>) -> 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 SalsaStructInDb for SymExpr<'_>

type MemoIngredientMap = MemoIngredientSingletonIndex

fn lookup_or_create_ingredient_index(aux: &Zalsa) -> IngredientIndices

Lookup or create ingredient indices.

fn cast(id: Id, type_id: TypeId) -> Option<Self>

Plumbing to support nested salsa supertypes.

impl<'db> Serialize for SymExpr<'db>

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<'db> SourceSpanned<'db> for SymExpr<'db>

fn source_span(&self, db: &'db dyn Db) -> Span<'db>

impl<'db> Subst<'db> for SymExpr<'db>

type GenericTerm = SymGenericTerm<'db>

The notion of generic term appropriate for this type. When we substitute variables, this is the type of value that we replace them with.

fn subst_vars( &self, db: &'db dyn Db, map: &Map<SymVariable<'db>, Self::GenericTerm>, ) -> Self::Output

Returns a version of self where universal free variables have been replaced by the corresponding entry in terms. If a variable is not present in terms it is not substituted.

fn subst_var( &self, db: &'db dyn Db, var: SymVariable<'db>, term: Self::GenericTerm, ) -> Self::Output

Replace the variable var with term.

fn resolve_infer_var( &self, db: &'db dyn Db, bound_vars: &mut Vec<SymVariable<'db>>, op: impl FnMut(InferVarIndex) -> Option<Self::GenericTerm>, ) -> Self::Output

Replace all inference variables with whatever is returned by op; if op returns None, the inference variable is left unchanged.

impl<'db> SubstWith<'db, SymGenericTerm<'db>> for SymExpr<'db>

type Output = SymExpr<'db>

The type of the resulting term; typically Self but not always.

fn identity(&self) -> Self::Output

Reproduce self with no edits.

fn subst_with<'subst>( &'subst self, db: &'db dyn Db, bound_vars: &mut Vec<SymVariable<'db>>, subst_fns: &mut SubstitutionFns<'_, 'db, SymGenericTerm<'db>>, ) -> Self::Output

Replace self applying the changes from subst_fns.

impl TrackedStructInDb for SymExpr<'_>

fn database_key_index(db: &dyn Database, id: Id) -> DatabaseKeyIndex

Converts the identifier for this tracked struct into a DatabaseKeyIndex.

impl Update for SymExpr<'_>

unsafe fn maybe_update(old_pointer: *mut Self, new_value: Self) -> bool

Returns

impl<'db> Copy for SymExpr<'db>

impl<'db> Eq for SymExpr<'db>

impl Send for SymExpr<'_>

impl<'db> StructuralPartialEq for SymExpr<'db>

impl Sync for SymExpr<'_>