Struct TypeRef 

pub struct TypeRef {
    pub name: String,
    pub name_span: SourceSpan,
    pub arity: TypeArity,
    pub generic_args: Vec<TypeRef>,
    pub int_args: Vec<u32>,
    pub ident_args: Vec<String>,
}

Fields

name: String

name_span: SourceSpan

arity: TypeArity

generic_args: Vec<TypeRef>

int_args: Vec<u32>

Compile-time integer literal arguments to a parametric scalar type, e.g. the 1536 in Vector(1536). Empty for every type that isn’t parametric — currently only Vector(n) populates this (see docs/design/extensions.md §6). #[serde(default)] keeps deserialization of migration snapshots written before this field existed working unchanged.

ident_args: Vec<String>

Bare identifier arguments to a parametric scalar type, e.g. the Polygon in Geography(Polygon, 4326). Empty for every type that doesn’t take one — currently only the spatial scalars populate this (see docs/design/extensions.md §6b and cratestack#842). #[serde(default)] keeps deserialization of migration snapshots written before this field existed working unchanged, exactly as it does for int_args.

Implementations

impl TypeRef

pub fn is_page(&self) -> bool

pub fn page_item(&self) -> Option<&TypeRef>

pub fn is_page_input(&self) -> bool

pub fn is_find_many(&self) -> bool

pub fn find_many_item(&self) -> Option<&TypeRef>

pub fn is_vector(&self) -> bool

pub fn vector_dim(&self) -> Option<u32>

The n in Vector(n), if this is a well-formed vector type reference (exactly one integer argument). Validation (cratestack-parser) is responsible for rejecting any other shape before this is relied upon by codegen.

pub fn is_spatial(&self) -> bool

true for the PostGIS scalars Geography / Geometry (cratestack#842). Both are stored as EWKB and differ only in whether PostGIS computes on the spheroid (geography) or the plane (geometry).

pub fn is_geography(&self) -> bool

true when this is the spheroidal Geography scalar, which is what the ST_Covers/ST_DWithin/ST_Distance builders in cratestack-sql assume as their operand.

pub fn spatial_subtype(&self) -> Option<&str>

The geometry subtype argument — the Polygon in Geography(Polygon, 4326) — if this is a spatial type reference carrying one. Validation (cratestack-parser) is responsible for rejecting any other shape before codegen relies on this, mirroring Self::vector_dim.

pub fn spatial_srid(&self) -> Option<u32>

The SRID argument — the 4326 in Geography(Polygon, 4326). None when the schema wrote the one-argument form (Geography(Polygon)), which defers to PostGIS’s own default rather than inventing one here.

Trait Implementations

impl Clone for TypeRef

fn clone(&self) -> TypeRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TypeRef

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TypeRef

fn deserialize<__D>( __deserializer: __D, ) -> Result<TypeRef, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TypeRef

impl PartialEq for TypeRef

fn eq(&self, other: &TypeRef) -> 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 Serialize for TypeRef

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TypeRef