Struct ForeignFunctionEntry 

pub struct ForeignFunctionEntry {
    pub name: String,
    pub language: String,
    pub body_text: String,
    pub param_names: Vec<String>,
    pub param_types: Vec<String>,
    pub return_type: Option<String>,
    pub arg_count: u16,
    pub is_async: bool,
    pub dynamic_errors: bool,
    pub return_type_schema_id: Option<u32>,
    pub content_hash: Option<[u8; 32]>,
    pub native_abi: Option<NativeAbiSpec>,
}

Metadata for a foreign function stored in the program. The compiler creates these; the engine links them to language runtimes before execution.

Fields

name: String

language: String

body_text: String

param_names: Vec<String>

param_types: Vec<String>

return_type: Option<String>

arg_count: u16

is_async: bool

dynamic_errors: bool

Whether this foreign function’s runtime has a dynamic error model. When true, the executor wraps results in Result<T> (Ok/Err). Defaults to true at compile time (safe default); overridden at link time from the actual runtime’s ErrorModel.

return_type_schema_id: Option<u32>

Schema ID for the return type when it contains an inline object type. Set at compile time by compile_foreign_function(). Used by the executor to construct HeapValue::TypedObject from msgpack Maps.

content_hash: Option<[u8; 32]>

Content hash for caching and deduplication. Computed from (language, body_text, param_types, return_type).

native_abi: Option<NativeAbiSpec>

Native C ABI metadata for extern "C" declarations.

When present, the VM links this function through the internal C ABI path instead of a language-runtime extension.

Implementations

impl ForeignFunctionEntry

pub fn compute_content_hash(&mut self)

Compute a content hash from (language, body_text, param_types, return_type).

Trait Implementations

impl Clone for ForeignFunctionEntry

fn clone(&self) -> ForeignFunctionEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ForeignFunctionEntry

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ForeignFunctionEntry

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ForeignFunctionEntry

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

where __S: Serializer,

Serialize this value into the given Serde serializer.