Trait TypeMapper 

pub trait TypeMapper {
    // Required method
    fn error_wrapper(&self) -> &str;

    // Provided methods
    fn primitive(&self, prim: &PrimitiveType) -> Cow<'static, str> { ... }
    fn string(&self) -> Cow<'static, str> { ... }
    fn bytes(&self) -> Cow<'static, str> { ... }
    fn path(&self) -> Cow<'static, str> { ... }
    fn json(&self) -> Cow<'static, str> { ... }
    fn unit(&self) -> Cow<'static, str> { ... }
    fn duration(&self) -> Cow<'static, str> { ... }
    fn optional(&self, inner: &str) -> String { ... }
    fn vec(&self, inner: &str) -> String { ... }
    fn map(&self, key: &str, value: &str) -> String { ... }
    fn named<'a>(&self, name: &'a str) -> Cow<'a, str> { ... }
    fn map_type(&self, ty: &TypeRef) -> String { ... }
    fn wrap_return(&self, base: &str, has_error: bool) -> String { ... }
}

Trait for mapping IR types to language-specific type strings. Backends implement only what differs from the Rust default.

Required Methods

fn error_wrapper(&self) -> &str

The error wrapper type for this language. e.g. “PyResult”, “napi::Result”, “PhpResult”

Provided Methods

fn primitive(&self, prim: &PrimitiveType) -> Cow<'static, str>

Map a primitive type. Default: Rust type names.

fn string(&self) -> Cow<'static, str>

Map a string type. Default: “String”

fn bytes(&self) -> Cow<'static, str>

Map a bytes type. Default: “Vec”

fn path(&self) -> Cow<'static, str>

Map a path type. Default: “String”

fn json(&self) -> Cow<'static, str>

Map a JSON type. Default: “serde_json::Value”

fn unit(&self) -> Cow<'static, str>

Map a unit type. Default: “()”

fn duration(&self) -> Cow<'static, str>

Map a duration type. Default: “u64” (seconds)

fn optional(&self, inner: &str) -> String

Map an optional type. Default: “Option”

fn vec(&self, inner: &str) -> String

Map a vec type. Default: “Vec”

fn map(&self, key: &str, value: &str) -> String

Map a map type. Default: “HashMap<K, V>”

fn named<'a>(&self, name: &'a str) -> Cow<'a, str>

Map a named type. Default: identity.

fn map_type(&self, ty: &TypeRef) -> String

Map a full TypeRef. Typically not overridden.

fn wrap_return(&self, base: &str, has_error: bool) -> String

Wrap a return type with error handling if needed.

Implementors