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{%- let ffi_type_name=builtin|ffi_type|ffi_type_name %}
{%- match config.custom_types.get(name.as_str()) %}
{%- when None %}
{#- No config, just forward all methods to our builtin type #}
/**
* Typealias from the type name used in the UDL file to the builtin type. This
* is needed because the UDL type name is used in function/method signatures.
*/
public typealias {{ name }} = {{ builtin|type_name }}
public struct FfiConverterType{{ name }}: FfiConverter {
public static func read(from buf: inout (data: Data, offset: Data.Index)) throws -> {{ name }} {
return try {{ builtin|read_fn }}(from: &buf)
}
public static func write(_ value: {{ name }}, into buf: inout [UInt8]) {
return {{ builtin|write_fn }}(value, into: &buf)
}
public static func lift(_ value: {{ ffi_type_name }}) throws -> {{ name }} {
return try {{ builtin|lift_fn }}(value)
}
public static func lower(_ value: {{ name }}) -> {{ ffi_type_name }} {
return {{ builtin|lower_fn }}(value)
}
}
{%- when Some with (config) %}
{# When the config specifies a different type name, create a typealias for it #}
{%- match config.type_name %}
{%- when Some with (concrete_type_name) %}
/**
* Typealias from the type name used in the UDL file to the custom type. This
* is needed because the UDL type name is used in function/method signatures.
*/
public typealias {{ name }} = {{ concrete_type_name }}
{%- else %}
{%- endmatch %}
{%- match config.imports %}
{%- when Some(imports) %}
{%- for import_name in imports %}
{{ self.add_import(import_name) }}
{%- endfor %}
{%- else %}
{%- endmatch %}
public struct FfiConverterType{{ name }}: FfiConverter {
{#- Custom type config supplied, use it to convert the builtin type #}
public static func read(from buf: inout (data: Data, offset: Data.Index)) throws -> {{ name }} {
let builtinValue = try {{ builtin|read_fn }}(from: &buf)
return {{ config.into_custom.render("builtinValue") }}
}
public static func write(_ value: {{ name }}, into buf: inout [UInt8]) {
let builtinValue = {{ config.from_custom.render("value") }}
return {{ builtin|write_fn }}(builtinValue, into: &buf)
}
public static func lift(_ value: {{ ffi_type_name }}) throws -> {{ name }} {
let builtinValue = try {{ builtin|lift_fn }}(value)
return {{ config.into_custom.render("builtinValue") }}
}
public static func lower(_ value: {{ name }}) -> {{ ffi_type_name }} {
let builtinValue = {{ config.from_custom.render("value") }}
return {{ builtin|lower_fn }}(builtinValue)
}
}
{%- endmatch %}
{#
We always write these public functions just incase the type is used as
an external type by another crate.
#}
public func FfiConverterType{{ name }}_lift(_ value: {{ ffi_type_name }}) throws -> {{ name }} {
return try FfiConverterType{{ name }}.lift(value)
}
public func FfiConverterType{{ name }}_lower(_ value: {{ name }}) -> {{ ffi_type_name }} {
return FfiConverterType{{ name }}.lower(value)
}
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