lotus_script/
var.rs

1use lotus_script_sys::{FfiObject, FromFfi};
2use lotus_shared::content::ContentId;
3
4pub trait VariableType {
5    type Output;
6
7    fn get(name: &str) -> Self::Output;
8    fn set(&self, name: &str);
9}
10
11pub enum Persistence {
12    Session,
13    Permanent,
14}
15
16macro_rules! impl_variable_type {
17    ($type:ty, $get:ident, $set:ident) => {
18        impl VariableType for $type {
19            type Output = $type;
20
21            fn get(name: &str) -> Self::Output {
22                let name = FfiObject::new(&name);
23                unsafe { lotus_script_sys::var::$get(name.packed()) as _ }
24            }
25
26            fn set(&self, name: &str) {
27                let name = FfiObject::new(&name);
28                unsafe { lotus_script_sys::var::$set(name.packed(), *self as _) }
29            }
30        }
31    };
32}
33
34impl_variable_type!(i8, get_i64, set_i64);
35impl_variable_type!(i16, get_i64, set_i64);
36impl_variable_type!(i32, get_i64, set_i64);
37impl_variable_type!(i64, get_i64, set_i64);
38
39impl_variable_type!(u8, get_i64, set_i64);
40impl_variable_type!(u16, get_i64, set_i64);
41impl_variable_type!(u32, get_i64, set_i64);
42impl_variable_type!(u64, get_i64, set_i64);
43
44impl_variable_type!(f32, get_f64, set_f64);
45impl_variable_type!(f64, get_f64, set_f64);
46
47impl VariableType for bool {
48    type Output = bool;
49
50    fn get(name: &str) -> Self::Output {
51        let name = FfiObject::new(&name);
52        unsafe { lotus_script_sys::var::get_bool(name.packed()) != 0 }
53    }
54
55    fn set(&self, name: &str) {
56        let name = FfiObject::new(&name);
57        unsafe {
58            lotus_script_sys::var::set_bool(
59                name.packed(),
60                match self {
61                    true => 1,
62                    false => 0,
63                },
64            )
65        }
66    }
67}
68
69impl VariableType for String {
70    type Output = String;
71
72    fn get(name: &str) -> Self::Output {
73        let name = FfiObject::new(&name);
74        let ptr = unsafe { lotus_script_sys::var::get_string(name.packed()) };
75        String::from_ffi(ptr)
76    }
77
78    fn set(&self, name: &str) {
79        let name = FfiObject::new(&name);
80        let value = FfiObject::new(self);
81        unsafe { lotus_script_sys::var::set_string(name.packed(), value.packed()) }
82    }
83}
84
85impl VariableType for &str {
86    type Output = String;
87
88    fn get(name: &str) -> Self::Output {
89        let name = FfiObject::new(&name);
90        let ptr = unsafe { lotus_script_sys::var::get_string(name.packed()) };
91        String::from_ffi(ptr)
92    }
93
94    fn set(&self, name: &str) {
95        let name = FfiObject::new(&name);
96        let value = FfiObject::new(&self.to_string());
97        unsafe { lotus_script_sys::var::set_string(name.packed(), value.packed()) }
98    }
99}
100
101impl VariableType for ContentId {
102    type Output = ContentId;
103
104    fn get(name: &str) -> Self {
105        let name = FfiObject::new(&name);
106        let ptr = unsafe { lotus_script_sys::var::get_content_id(name.packed()) };
107        FfiObject::from_packed(ptr).deserialize()
108    }
109
110    fn set(&self, name: &str) {
111        let name = FfiObject::new(&name);
112        let value = FfiObject::new(self);
113        unsafe { lotus_script_sys::var::set_content_id(name.packed(), value.packed()) }
114    }
115}
116
117pub struct Variable<T> {
118    name: String,
119    _phantom: std::marker::PhantomData<T>,
120}
121
122impl<T> Variable<T> {
123    pub fn new(name: &str) -> Self {
124        Self {
125            name: name.to_string(),
126            _phantom: std::marker::PhantomData,
127        }
128    }
129}
130
131impl<T: VariableType> Variable<T> {
132    pub fn get(&self) -> T::Output {
133        T::get(&self.name)
134    }
135
136    pub fn set(&self, value: &T) {
137        value.set(&self.name);
138    }
139}
lotus_script/var.rs

lotus_script/
var.rs
