Struct gitql_ast::signature::Signature

pub struct Signature {
    pub parameters: Vec<DataType>,
    pub return_type: DataType,
}

Signature struct is a representation of function type

Function type in GitQL used to track parameters and return type for now but later can track parameter names to allow pass parameter by name and improve error messages

GitQL Function Signature has some rules to follow

Rules:

• Parameters must contains 0 or 1 DataType::Varargs parameter type only.
• DataType::Varargs must be the last parameter.
• You can add 0 or more DataType::Optional parameters.
• DataType::Optional parameters must be at the end but also before DataType::Varargs if exists.

The return type can be a static DataType such as Int, Flow or Dynamic so you can return a dynamic type depending on parameters.

Fields

parameters: Vec<DataType>

return_type: DataType