Struct GoMapper 

pub struct GoMapper;

TypeMapper for Go bindings.

Maps Rust types to idiomatic Go types:

• Integers use Go’s explicit-width types (uint8, int32, etc.)
• usize/isize map to uint/int (platform-native width)
• Optional<T> becomes *T (nullable pointer)
• Vec<T> becomes []T
• Map<K,V> becomes map[K]V
• JSON becomes json.RawMessage
• Unit becomes “” (void in Go — no type in return position)
• Duration becomes uint64 (milliseconds)

Trait Implementations

impl TypeMapper for GoMapper

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<u8>”

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<T>”

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

Map a vec type. Default: “Vec<T>”

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 error_wrapper(&self) -> &str

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

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.