1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219
#![no_std] use js::*; extern crate alloc; pub trait GetProperty { fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> where Self: Sized; } impl GetProperty for f64 { fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> { let v = el.into(); if !is_property_number(v, name) { return None; } Some( js!("function(el,strPtr,strLen){ el = this.getObject(el); return el[this.readUtf8FromMemory(strPtr,strLen)]; }") .invoke_3(v, name.as_ptr() as u32, name.len() as u32), ) } } impl GetProperty for bool { fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> { let v = js!(r#"function(el,strPtr,strLen){ el = this.getObject(el); let i = el[this.readUtf8FromMemory(strPtr,strLen)]; if(typeof i !== "boolean"){ return -1; } return el[this.readUtf8FromMemory(strPtr,strLen)] ? 1 : 0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); if v == -1.0 { return None; } else { Some(v == 1.0) } } } impl GetProperty for alloc::string::String { fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> { let attr = js!(r#"function(o,strPtr,strLen){ o = this.getObject(o); const a = o[this.readUtf8FromMemory(strPtr,strLen)]; if(a === null){ return -1; } return this.writeCStringToMemory(a); }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); if attr == -1.0 { return None; } else { Some(cstr_to_string(attr as i32)) } } } impl GetProperty for JSObject { fn get_property(el: impl Into<f64>, name: &str) -> Option<Self> { let o = js!(r#"function(o,strPtr,strLen){ o = this.getObject(o); const a = o[this.readUtf8FromMemory(strPtr,strLen)]; if(a === null){ return -1; } return this.storeObject(a); }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); if o == -1.0 { return None; } else { Some(JSObject::from(o)) } } } pub fn get_property<T>(el: impl Into<f64>, id: &str) -> Option<T> where T: GetProperty, { T::get_property(el, id) } pub trait SetProperty { fn set_property(el: impl Into<f64>, id: &str, s: Self); } impl SetProperty for f64 { fn set_property(el: impl Into<f64>, id: &str, v: Self) { js!("function(el,strPtr,strLen,value){ el = this.getObject(el); return el[this.readUtf8FromMemory(strPtr,strLen)] = value; }") .invoke_4(el.into(), id.as_ptr() as u32, id.len() as u32, v); } } impl SetProperty for &str { fn set_property(el: impl Into<f64>, name: &str, txt: Self) { js!(r#"function(o,strPtr,strLen,valPtr,valLen){ o = this.getObject(o); o[this.readUtf8FromMemory(strPtr,strLen)] = this.readUtf8FromMemory(valPtr,valLen); }"#) .invoke_5( el.into(), name.as_ptr() as u32, name.len() as u32, txt.as_ptr() as u32, txt.len() as u32, ); } } impl SetProperty for bool { fn set_property(el: impl Into<f64>, name: &str, value: Self) { js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); o[this.readUtf8FromMemory(strPtr,strLen)] = val > 0; }"#) .invoke_4( el.into(), name.as_ptr() as u32, name.len() as u32, if value { 1.0 } else { 0.0 }, ); } } impl SetProperty for JSObject { fn set_property(el: impl Into<f64>, name: &str, value: Self) { js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); o[this.readUtf8FromMemory(strPtr,strLen)] = this.getObject(val); }"#) .invoke_4( el.into(), name.as_ptr() as u32, name.len() as u32, value.handle, ); } } pub fn set_property<T>(el: impl Into<f64>, id: &str, v: T) where T: SetProperty, { T::set_property(el, id, v) } pub fn is_property_null(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return o[this.readUtf8FromMemory(strPtr,strLen)] === null ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_undefined(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return o[this.readUtf8FromMemory(strPtr,strLen)] === undefined ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_number(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "number" ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_bool(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "boolean" ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_string(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "string" ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_object(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return typeof o[this.readUtf8FromMemory(strPtr,strLen)] === "object" ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 } pub fn is_property_array(el: impl Into<f64>, name: &str) -> bool { let v = js!(r#"function(o,strPtr,strLen,val){ o = this.getObject(o); return Array.isArray(o[this.readUtf8FromMemory(strPtr,strLen)]) ? 1.0 : 0.0; }"#) .invoke_3(el.into(), name.as_ptr() as u32, name.len() as u32); v == 1.0 }