Struct spirt::Context

pub struct Context {
    interners: Interners,
    entity_allocs: EntityAllocs,
    custom_spv_ext_inst_set_descs: FrozenBTreeMap<String, Box<ExtInstSetDesc>>,
}

Context object with global resources for SPIR-T.

Those resources currently are:

• interners, for anything without an identity, and which can be deduplicated
• “entity” allocators, for everything else - i.e. anything with an identity that needs to remain unique across an entire Context
  • the definition of an entity isn’t kept in the Context, but rather in some EntityDefs collection somewhere in a Module (or further nested), with only the entity indices being allocated by the Context
• custom SPIR-V “extended instruction set” descriptions, which can be dynamically registered, to account for any such “extended instruction set” not covered by spv::spec::Spec’s built-in list (e.g. non-standard tool-specific sets), and only used for pretty-printing

Fields

interners: Interners

entity_allocs: EntityAllocs

custom_spv_ext_inst_set_descs: FrozenBTreeMap<String, Box<ExtInstSetDesc>>

Implementations

impl Context

pub fn register_custom_ext_inst_set( &self, ext_inst_set_name: &str, ext_inst_set_desc: ExtInstSetDesc )

Register a custom ExtInstSetDesc with name ext_inst_set_name, to be used by pretty-printing when using this Context.

pub fn get_custom_ext_inst_set_by_lowercase_name( &self, lowercase_ext_inst_set_name: &str ) -> Option<&ExtInstSetDesc>

Return a custom ExtInstSetDesc, if one was registered on this Context, for this OpExtInstImport name (required to be lowercase, due to Khronos’ choice of case insensitivity, but not checked by this function).

impl Context

pub fn new() -> Self

pub fn intern<T: InternInCx<I>, I>(&self, x: T) -> I

Trait Implementations

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl<I: Interned> Index<I> for Context

type Output = <I as Interned>::Def

The returned type after indexing.

fn index(&self, interned: I) -> &Self::Output

Performs the indexing (container[index]) operation.