vm/
native.rs

1use super::FnVariant;
2use crate::JITRunTime;
3use anyhow::Result;
4use cranelift::prelude::AbiParam;
5use cranelift_module::{Linkage, Module};
6use dynamic::{Dynamic, Type};
7use parser::{BinaryOp, Expr, ExprKind, Span};
8use rand::RngExt;
9use std::sync::{Mutex, Weak};
10
11extern "C" fn any_clone(addr: *const Dynamic) -> *const Dynamic {
12    //在堆上分配内存 复制 addr 到内存中
13    unsafe {
14        let cloned_value = (*addr).deep_clone();
15        let ptr = Box::new(cloned_value);
16        Box::into_raw(ptr)
17    }
18}
19
20extern "C" fn any_null() -> *const Dynamic {
21    //在堆上分配内存 复制 addr 到内存中
22    let ptr = Box::new(Dynamic::Null);
23    Box::into_raw(ptr)
24}
25
26extern "C" fn print(addr: *const Dynamic) {
27    if !addr.is_null() {
28        unsafe {
29            println!("{}", (*addr).to_string());
30        }
31    }
32}
33
34extern "C" fn any_is_map(addr: *const Dynamic) -> bool {
35    !addr.is_null() && unsafe { (*addr).is_map() }
36}
37
38extern "C" fn any_is_list(addr: *const Dynamic) -> bool {
39    !addr.is_null() && unsafe { (*addr).is_list() }
40}
41
42extern "C" fn random(start: *const Dynamic, stop: *const Dynamic) -> *const Dynamic {
43    if !start.is_null() && !stop.is_null() {
44        let mut rng = rand::rng();
45        unsafe {
46            if (&*start).is_int() {
47                let start = (*start).as_int().unwrap_or(0);
48                let stop = (*stop).as_int().unwrap_or(100);
49                return Box::into_raw(Box::new(Dynamic::I64(rng.random_range(start..stop))));
50            } else if (&*start).is_f32() || (&*start).is_f64() {
51                let start = (*start).as_float().unwrap_or(0.0);
52                let stop = (*stop).as_float().unwrap_or(1.0);
53                return Box::into_raw(Box::new(Dynamic::F64(rng.random_range(start..stop))));
54            }
55        }
56    }
57    Box::into_raw(Box::new(Dynamic::Null))
58}
59
60extern "C" fn uuid() -> *const Dynamic {
61    Box::into_raw(Box::new(uuid::Uuid::new_v4().to_string().into()))
62}
63
64extern "C" fn struct_alloc(size: i64) -> *mut u8 {
65    let size = size.max(0) as usize;
66    let mut buf = vec![0u8; size].into_boxed_slice();
67    let ptr = buf.as_mut_ptr();
68    std::mem::forget(buf);
69    ptr
70}
71
72extern "C" fn struct_from_ptr(addr: i64, ty: i64) -> *const Dynamic {
73    let ty = unsafe { (&*(ty as *const Type)).clone() };
74    Box::into_raw(Box::new(Dynamic::Struct { addr: addr as usize, ty }))
75}
76
77pub(crate) extern "C" fn import_with_vm(context: *const Weak<Mutex<JITRunTime>>, addr: *const Dynamic, path: *const Dynamic) -> bool {
78    if addr.is_null() || path.is_null() {
79        return false;
80    }
81    super::with_vm_context(context, |vm| vm.import(unsafe { &*addr }.as_str(), unsafe { &*path }.as_str())).map_err(|e| println!("import {:?}", e)).is_ok()
82}
83
84extern "C" fn any_len(addr: *const Dynamic) -> i64 {
85    if addr.is_null() { 0 } else { unsafe { (&*addr).len() as i64 } }
86}
87
88extern "C" fn any_keys(addr: *const Dynamic) -> *const Dynamic {
89    if addr.is_null() {
90        return Box::into_raw(Box::new(Dynamic::list(Vec::new())));
91    }
92    let keys = match unsafe { &*addr } {
93        Dynamic::Map(map) => map.read().unwrap().keys().map(|key| Dynamic::from(key.as_str())).collect(),
94        _ => Vec::new(),
95    };
96    Box::into_raw(Box::new(Dynamic::list(keys)))
97}
98
99extern "C" fn any_iter(addr: *const Dynamic) -> *const Dynamic {
100    if addr.is_null() {
101        &Dynamic::Null
102    } else {
103        let v = unsafe { Box::new((*addr).clone().into_iter()) };
104        Box::into_raw(v)
105    }
106}
107
108extern "C" fn any_next(addr: *mut Dynamic) -> *const Dynamic {
109    let v = unsafe { Box::new((*addr).next().unwrap_or(Dynamic::Null)) };
110    Box::into_raw(v)
111}
112
113extern "C" fn any_push(addr: *mut Dynamic, value: *mut Dynamic) {
114    if !addr.is_null() && !value.is_null() {
115        unsafe {
116            let value_box = Box::from_raw(value as *mut Dynamic);
117            (&mut *addr).push(*value_box);
118        }
119    }
120}
121
122extern "C" fn any_pop(addr: *mut Dynamic) -> *const Dynamic {
123    if addr.is_null() {
124        &Dynamic::Null
125    } else {
126        let v = unsafe { Box::new((*addr).pop().unwrap_or(Dynamic::Null)) };
127        Box::into_raw(v)
128    }
129}
130
131extern "C" fn get_key(addr: *const Dynamic, key: *const Dynamic) -> *const Dynamic {
132    if addr.is_null() || key.is_null() {
133        &Dynamic::Null
134    } else {
135        let key: &str = unsafe { &*key }.as_str();
136        let v = unsafe { Box::new((*addr).get_dynamic(key).unwrap_or(Dynamic::Null)) };
137        Box::into_raw(v)
138    }
139}
140
141extern "C" fn contains(addr: *const Dynamic, key: *const Dynamic) -> bool {
142    if addr.is_null() || key.is_null() {
143        false
144    } else {
145        let key: &str = unsafe { &*key }.as_str();
146        unsafe { (*addr).contains(key) }
147    }
148}
149
150extern "C" fn starts_with(addr: *const Dynamic, prefix: *const Dynamic) -> bool {
151    if addr.is_null() || prefix.is_null() {
152        false
153    } else {
154        let prefix: &str = unsafe { &*prefix }.as_str();
155        unsafe { (*addr).starts_with(prefix) }
156    }
157}
158
159extern "C" fn get_idx(addr: *const Dynamic, idx: i64) -> *const Dynamic {
160    if addr.is_null() {
161        &Dynamic::Null
162    } else {
163        let v = unsafe { Box::new((*addr).get_idx(idx as usize).unwrap_or(Dynamic::Null)) };
164        Box::into_raw(v)
165    }
166}
167
168extern "C" fn slice(addr: *const Dynamic, start: i64, stop: *const Dynamic, inclusive: bool) -> *const Dynamic {
169    if addr.is_null() {
170        return &Dynamic::Null;
171    }
172
173    let value = unsafe { &*addr };
174    let len = value.len() as i64;
175    let start = start.clamp(0, len) as usize;
176    let mut stop = if stop.is_null() {
177        len
178    } else {
179        let raw = unsafe { &*stop };
180        if raw.is_null() { len } else { raw.as_int().unwrap_or(len) }
181    };
182    if inclusive && stop < len {
183        stop += 1;
184    }
185    let stop = stop.clamp(start as i64, len) as usize;
186
187    let sliced = match value {
188        Dynamic::String(text) => Dynamic::from(text.chars().skip(start).take(stop.saturating_sub(start)).collect::<String>()),
189        Dynamic::List(list) => Dynamic::list(list.read().unwrap()[start..stop].to_vec()),
190        _ => Dynamic::Null,
191    };
192    Box::into_raw(Box::new(sliced))
193}
194
195extern "C" fn set_key(addr: *mut Dynamic, key: *const Dynamic, value: *const Dynamic) {
196    if addr.is_null() || key.is_null() {
197        return;
198    }
199    let key: &str = unsafe { &*key }.as_str();
200    unsafe { (&mut *addr).set_dynamic(key.into(), (&*value).clone()) }
201}
202
203extern "C" fn set_idx(addr: *mut Dynamic, idx: i64, value: *const Dynamic) {
204    if addr.is_null() {
205        return;
206    }
207    unsafe { (&mut *addr).set_idx(idx as usize, (&*value).clone()) }
208}
209
210extern "C" fn any_from_i64(v: i64) -> *const Dynamic {
211    let value = Box::new(Dynamic::I64(v));
212    Box::into_raw(value)
213}
214
215extern "C" fn any_from_bool(v: bool) -> *const Dynamic {
216    let value = Box::new(Dynamic::Bool(v));
217    Box::into_raw(value)
218}
219
220extern "C" fn any_to_i64(addr: *const Dynamic) -> i64 {
221    if addr.is_null() {
222        return 0;
223    }
224    unsafe { (&*addr).as_int().unwrap_or(0) }
225}
226
227extern "C" fn any_to_bool(addr: *const Dynamic) -> bool {
228    if addr.is_null() {
229        return false;
230    }
231    unsafe {
232        let value = &*addr;
233        if let Some(v) = value.as_bool() {
234            v
235        } else if let Some(v) = value.as_int() {
236            v != 0
237        } else if let Some(v) = value.as_float() {
238            v != 0.0
239        } else {
240            !value.is_null()
241        }
242    }
243}
244
245extern "C" fn any_from_f64(v: f64) -> *const Dynamic {
246    let value = Box::new(Dynamic::F64(v));
247    Box::into_raw(value)
248}
249
250extern "C" fn any_split(addr: *mut Dynamic, s: *const Dynamic) -> *const Dynamic {
251    if addr.is_null() || s.is_null() {
252        return &Dynamic::Null;
253    }
254    let s: &str = unsafe { &*s }.as_str();
255    Box::into_raw(Box::new(unsafe { (&*addr).clone() }.split(s)))
256}
257
258extern "C" fn any_to_f64(addr: *const Dynamic) -> f64 {
259    if addr.is_null() {
260        return 0.0;
261    }
262    unsafe { (&*addr).as_float().unwrap_or(0.0) }
263}
264
265extern "C" fn any_to_string(addr: *const Dynamic) -> *const Dynamic {
266    if addr.is_null() {
267        return Box::into_raw(Box::new(Dynamic::from("")));
268    }
269    Box::into_raw(Box::new(Dynamic::from(unsafe { &*addr }.to_string())))
270}
271
272extern "C" fn any_binary(left: *const Dynamic, op: i32, right: *const Dynamic) -> *const Dynamic {
273    if left.is_null() {
274        return right;
275    }
276    if right.is_null() {
277        return left;
278    }
279    let op = BinaryOp::try_from(op).unwrap();
280    unsafe {
281        let expr = Expr::new(
282            ExprKind::Binary { left: Box::new(Expr::new(ExprKind::Value((&*left).clone()), Span::default())), op, right: Box::new(Expr::new(ExprKind::Value((&*right).clone()), Span::default())) },
283            Span::default(),
284        );
285        let r = Box::new(expr.compact().unwrap_or(Dynamic::Null));
286        Box::into_raw(r)
287    }
288}
289
290extern "C" fn any_logic(left: *const Dynamic, op: i32, right: *const Dynamic) -> i32 {
291    let op = BinaryOp::try_from(op).unwrap();
292    unsafe {
293        let expr = Expr::new(
294            ExprKind::Binary { left: Box::new(Expr::new(ExprKind::Value((&*left).clone()), Span::default())), op, right: Box::new(Expr::new(ExprKind::Value((&*right).clone()), Span::default())) },
295            Span::default(),
296        );
297        if expr.compact().and_then(|r| r.as_bool()).unwrap_or(false) { 1 } else { 0 }
298    }
299}
300
301pub const STD: [(&str, &[Type], Type, *const u8); 5] = [
302    ("print", &[Type::Any], Type::Void, print as *const u8),
303    ("uuid", &[], Type::Any, uuid as *const u8),
304    ("rand", &[Type::Any, Type::Any], Type::Any, random as *const u8),
305    ("__struct_alloc", &[Type::I64], Type::Any, struct_alloc as *const u8),
306    ("__struct_from_ptr", &[Type::I64, Type::I64], Type::Any, struct_from_ptr as *const u8),
307];
308
309pub const ANY: [(&str, &[Type], Type, *const u8); 27] = [
310    ("Any::null", &[], Type::Any, any_null as *const u8),
311    ("Any::is_map", &[Type::Any], Type::Bool, any_is_map as *const u8),
312    ("Any::is_list", &[Type::Any], Type::Bool, any_is_list as *const u8),
313    ("Any::clone", &[Type::Any], Type::Any, any_clone as *const u8),
314    ("Any::len", &[Type::Any], Type::I32, any_len as *const u8),
315    ("Any::keys", &[Type::Any], Type::Any, any_keys as *const u8),
316    ("Any::split", &[Type::Any, Type::Any], Type::Any, any_split as *const u8),
317    ("Any::push", &[Type::Any, Type::Any], Type::Void, any_push as *const u8),
318    ("Any::pop", &[Type::Any], Type::Any, any_pop as *const u8),
319    ("Any::get_idx", &[Type::Any, Type::I64], Type::Any, get_idx as *const u8),
320    ("Any::slice", &[Type::Any, Type::I64, Type::Any, Type::Bool], Type::Any, slice as *const u8),
321    ("Any::contains", &[Type::Any, Type::Any], Type::Bool, contains as *const u8),
322    ("Any::starts_with", &[Type::Any, Type::Any], Type::Bool, starts_with as *const u8),
323    ("Any::get_key", &[Type::Any, Type::Any], Type::Any, get_key as *const u8),
324    ("Any::set_idx", &[Type::Any, Type::I64, Type::Any], Type::Void, set_idx as *const u8),
325    ("Any::set_key", &[Type::Any, Type::Any, Type::Any], Type::Void, set_key as *const u8),
326    ("Any::from_i64", &[Type::I64], Type::Any, any_from_i64 as *const u8),
327    ("Any::from_bool", &[Type::Bool], Type::Any, any_from_bool as *const u8),
328    ("Any::to_i64", &[Type::Any], Type::I64, any_to_i64 as *const u8),
329    ("Any::to_bool", &[Type::Any], Type::Bool, any_to_bool as *const u8),
330    ("Any::from_f64", &[Type::F64], Type::Any, any_from_f64 as *const u8),
331    ("Any::to_f64", &[Type::Any], Type::F64, any_to_f64 as *const u8),
332    ("Any::to_string", &[Type::Any], Type::Str, any_to_string as *const u8),
333    ("Any::binary", &[Type::Any, Type::I32, Type::Any], Type::Any, any_binary as *const u8),
334    ("Any::logic", &[Type::Any, Type::I32, Type::Any], Type::Bool, any_logic as *const u8),
335    ("Any::iter", &[Type::Any], Type::Any, any_iter as *const u8),
336    ("Any::next", &[Type::Any], Type::Any, any_next as *const u8),
337];
338
339use std::rc::Rc;
340impl JITRunTime {
341    pub fn add_native_ptr(&mut self, full_name: &str, name: &str, arg_tys: &[Type], ret_ty: Type, fn_ptr: *const u8) -> Result<u32> {
342        self.native_symbols.write().unwrap().insert(full_name.to_string(), fn_ptr as usize);
343        self.add_native(full_name, name, arg_tys, ret_ty)
344    }
345
346    pub(crate) fn add_context_native_ptr(&mut self, full_name: &str, name: &str, arg_tys: &[Type], ret_ty: Type, fn_ptr: *const u8) -> Result<u32> {
347        self.native_symbols.write().unwrap().insert(full_name.to_string(), fn_ptr as usize);
348        self.add_context_native(full_name, name, arg_tys, ret_ty)
349    }
350
351    pub fn add_native(&mut self, full_name: &str, name: &str, arg_tys: &[Type], ret_ty: Type) -> Result<u32> {
352        let fn_ty = Type::Fn { tys: arg_tys.to_vec(), ret: Rc::new(ret_ty.clone()) };
353        let id = self.compiler.add_symbol(name, compiler::Symbol::Native(fn_ty.clone()));
354        let sig = self.get_sig(arg_tys, ret_ty)?;
355        let fn_id = self.module.declare_function(full_name, Linkage::Import, &sig)?;
356        self.fns.insert(id, FnVariant::Native { ty: fn_ty, fn_id, context: None });
357        Ok(id)
358    }
359
360    pub(crate) fn add_context_native(&mut self, full_name: &str, name: &str, arg_tys: &[Type], ret_ty: Type) -> Result<u32> {
361        let fn_ty = Type::Fn { tys: arg_tys.to_vec(), ret: Rc::new(ret_ty.clone()) };
362        let id = self.compiler.add_symbol(name, compiler::Symbol::Native(fn_ty.clone()));
363        let mut sig = self.module.make_signature();
364        sig.params.push(AbiParam::new(crate::ptr_type()));
365        for arg in arg_tys.iter() {
366            sig.params.push(AbiParam::new(crate::get_type(arg)?));
367        }
368        if !ret_ty.is_void() {
369            sig.returns.push(AbiParam::new(crate::get_type(&ret_ty)?));
370        }
371        let fn_id = self.module.declare_function(full_name, Linkage::Import, &sig)?;
372        self.fns.insert(id, FnVariant::Native { ty: fn_ty, fn_id, context: Some(self.owner_context_ptr()) });
373        Ok(id)
374    }
375}
vm/native.rs

vm/
native.rs
