Struct FunctionHelperVirtual

pub struct FunctionHelperVirtual {
    pub function_name: String,
    pub generated_args: String,
    pub generated_function_body: Vec<String>,
    pub generated_virtual_function_signature: String,
    pub return_type: Option<WrapperType>,
    pub arg_names: Vec<String>,
    /* private fields */
}

Fields

function_name: String

generated_args: String

generated_function_body: Vec<String>

generated_virtual_function_signature: String

return_type: Option<WrapperType>

arg_names: Vec<String>

Implementations

impl FunctionHelperVirtual

pub fn from_virtual_function(function: &Function, class_name: &str) -> Self

Translates the intermediate form of a parsed function into the elements ready-to-use in the C++ code generation process. It prepares code for a C++ virtual method declaration and extern “C” function that calls the virtual method. Due to this, Rust code can call virtual C++ methods like trait functions.

Pseudocode:

Rust: SomeTrait { method_a(); }

Swift: Class SomeTrait { method_a(); }

@_cdecl __method_a(AnyType obj) { (obj as SomeTrait).method_a(); }

pub fn generate_virtual_declaration(self) -> String

Generates a virtual function declaration that can be used within a class declaration.

pub fn generate_virtual_definition(self) -> String

Generates an extern function that calls the virtual method on a swift trait object that can be mapped to some Rust trait object.