Implement IndexedDB basic subset: database lifecycle, object stores, transactions, indexes, and persistence

+183

crates/browser/src/indexeddb.rs

··· 1 + //! IndexedDB persistence: loads and saves IndexedDB data to disk. 2 + //! 3 + //! Each origin gets its own directory under `~/.we/indexeddb/`. The binary 4 + //! format is the encoding from [`we_js::indexeddb::IndexedDbState`]. 5 + 6 + use std::fs; 7 + use std::path::PathBuf; 8 + use we_js::indexeddb::IndexedDbState; 9 + use we_url::Origin; 10 + 11 + /// Manages on-disk persistence of IndexedDB data. 12 + pub struct IndexedDbManager { 13 + storage_dir: PathBuf, 14 + } 15 + 16 + impl Default for IndexedDbManager { 17 + fn default() -> Self { 18 + Self::new() 19 + } 20 + } 21 + 22 + impl IndexedDbManager { 23 + /// Create a manager using the default directory (`~/.we/indexeddb/`). 24 + pub fn new() -> Self { 25 + let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string()); 26 + let storage_dir = PathBuf::from(home).join(".we").join("indexeddb"); 27 + Self { storage_dir } 28 + } 29 + 30 + /// Create a manager backed by a custom directory (useful for tests). 31 + pub fn with_dir(dir: PathBuf) -> Self { 32 + Self { storage_dir: dir } 33 + } 34 + 35 + /// Derive a safe filename from an origin. 36 + fn file_path(&self, origin: &Origin) -> Option<PathBuf> { 37 + match origin { 38 + Origin::Opaque => None, 39 + Origin::Tuple(..) => { 40 + let serialized = origin.serialize(); 41 + let safe: String = serialized 42 + .chars() 43 + .map(|c| match c { 44 + '/' | ':' | '?' | '#' | '\\' | '*' | '"' | '<' | '>' | '|' => '_', 45 + c => c, 46 + }) 47 + .collect(); 48 + Some(self.storage_dir.join(safe)) 49 + } 50 + } 51 + } 52 + 53 + /// Load IndexedDB state from disk for the given origin. 54 + /// Returns an empty state if the file doesn't exist or is corrupt. 55 + pub fn load(&self, origin: &Origin) -> IndexedDbState { 56 + let path = match self.file_path(origin) { 57 + Some(p) => p, 58 + None => return IndexedDbState::new(), 59 + }; 60 + match fs::read(&path) { 61 + Ok(data) => IndexedDbState::deserialize(&data).unwrap_or_default(), 62 + Err(_) => IndexedDbState::new(), 63 + } 64 + } 65 + 66 + /// Save IndexedDB state to disk for the given origin. 67 + pub fn save(&self, origin: &Origin, state: &IndexedDbState) { 68 + let path = match self.file_path(origin) { 69 + Some(p) => p, 70 + None => return, 71 + }; 72 + if let Some(parent) = path.parent() { 73 + let _ = fs::create_dir_all(parent); 74 + } 75 + let data = state.serialize(); 76 + let _ = fs::write(&path, data); 77 + } 78 + } 79 + 80 + #[cfg(test)] 81 + mod tests { 82 + use super::*; 83 + 84 + #[test] 85 + fn roundtrip_persistence() { 86 + let dir = std::env::temp_dir().join("we_indexeddb_test_roundtrip"); 87 + let _ = fs::remove_dir_all(&dir); 88 + let mgr = IndexedDbManager::with_dir(dir.clone()); 89 + 90 + let origin = Origin::Tuple( 91 + "https".to_string(), 92 + we_url::Host::Domain("example.com".to_string()), 93 + None, 94 + ); 95 + 96 + // Start empty. 97 + let state = mgr.load(&origin); 98 + assert_eq!(state.databases.len(), 0); 99 + 100 + // Build some state. 101 + let mut state = IndexedDbState::new(); 102 + let mut db = we_js::indexeddb::DatabaseDef::new("testdb".to_string(), 1); 103 + db.stores.insert( 104 + "items".to_string(), 105 + we_js::indexeddb::ObjectStoreDef::new( 106 + "items".to_string(), 107 + Some("id".to_string()), 108 + false, 109 + ), 110 + ); 111 + state.databases.insert("testdb".to_string(), db); 112 + mgr.save(&origin, &state); 113 + 114 + // Load it back. 115 + let loaded = mgr.load(&origin); 116 + assert_eq!(loaded.databases.len(), 1); 117 + assert!(loaded.databases.contains_key("testdb")); 118 + let db = &loaded.databases["testdb"]; 119 + assert_eq!(db.version, 1); 120 + assert_eq!(db.stores.len(), 1); 121 + assert!(db.stores.contains_key("items")); 122 + 123 + let _ = fs::remove_dir_all(&dir); 124 + } 125 + 126 + #[test] 127 + fn opaque_origin_gets_no_storage() { 128 + let dir = std::env::temp_dir().join("we_indexeddb_test_opaque"); 129 + let _ = fs::remove_dir_all(&dir); 130 + let mgr = IndexedDbManager::with_dir(dir.clone()); 131 + 132 + let mut state = IndexedDbState::new(); 133 + state.databases.insert( 134 + "db".to_string(), 135 + we_js::indexeddb::DatabaseDef::new("db".to_string(), 1), 136 + ); 137 + mgr.save(&Origin::Opaque, &state); 138 + 139 + let loaded = mgr.load(&Origin::Opaque); 140 + assert_eq!(loaded.databases.len(), 0); 141 + 142 + let _ = fs::remove_dir_all(&dir); 143 + } 144 + 145 + #[test] 146 + fn different_origins_isolated() { 147 + let dir = std::env::temp_dir().join("we_indexeddb_test_isolation"); 148 + let _ = fs::remove_dir_all(&dir); 149 + let mgr = IndexedDbManager::with_dir(dir.clone()); 150 + 151 + let origin_a = Origin::Tuple( 152 + "https".to_string(), 153 + we_url::Host::Domain("a.com".to_string()), 154 + None, 155 + ); 156 + let origin_b = Origin::Tuple( 157 + "https".to_string(), 158 + we_url::Host::Domain("b.com".to_string()), 159 + None, 160 + ); 161 + 162 + let mut state_a = IndexedDbState::new(); 163 + state_a.databases.insert( 164 + "shared".to_string(), 165 + we_js::indexeddb::DatabaseDef::new("shared".to_string(), 1), 166 + ); 167 + mgr.save(&origin_a, &state_a); 168 + 169 + let mut state_b = IndexedDbState::new(); 170 + state_b.databases.insert( 171 + "shared".to_string(), 172 + we_js::indexeddb::DatabaseDef::new("shared".to_string(), 5), 173 + ); 174 + mgr.save(&origin_b, &state_b); 175 + 176 + let loaded_a = mgr.load(&origin_a); 177 + let loaded_b = mgr.load(&origin_b); 178 + assert_eq!(loaded_a.databases["shared"].version, 1); 179 + assert_eq!(loaded_b.databases["shared"].version, 5); 180 + 181 + let _ = fs::remove_dir_all(&dir); 182 + } 183 + }

+1

crates/browser/src/lib.rs

··· 4 4 pub mod css_loader; 5 5 pub mod font_loader; 6 6 pub mod img_loader; 7 + pub mod indexeddb; 7 8 pub mod loader; 8 9 pub mod script_loader; 9 10 pub mod storage;

+2629

crates/js/src/indexeddb.rs

··· 1 + //! IndexedDB API: structured client-side storage. 2 + //! 3 + //! Provides a basic subset of the IndexedDB specification. Databases are 4 + //! partitioned by origin and consist of object stores with optional indexes. 5 + //! The API is event-based: requests fire `onsuccess` / `onerror` callbacks 6 + //! via the VM event loop. 7 + 8 + use std::cell::RefCell; 9 + use std::collections::HashMap; 10 + 11 + use crate::builtins::{make_native, set_builtin_prop}; 12 + use crate::gc::{Gc, GcRef}; 13 + use crate::vm::*; 14 + 15 + // ── Structured clone value ────────────────────────────────────── 16 + 17 + /// A serializable representation of a JS value (structured clone subset). 18 + #[derive(Debug, Clone, PartialEq)] 19 + pub enum IdbValue { 20 + Undefined, 21 + Null, 22 + Boolean(bool), 23 + Number(f64), 24 + String(String), 25 + Array(Vec<IdbValue>), 26 + Object(Vec<(String, IdbValue)>), 27 + } 28 + 29 + impl IdbValue { 30 + /// Compare two IDB keys for ordering (IndexedDB key comparison). 31 + /// Numbers < Strings. Within the same type, natural ordering. 32 + fn key_cmp(&self, other: &Self) -> std::cmp::Ordering { 33 + use std::cmp::Ordering; 34 + match (self, other) { 35 + (IdbValue::Number(a), IdbValue::Number(b)) => { 36 + a.partial_cmp(b).unwrap_or(Ordering::Equal) 37 + } 38 + (IdbValue::String(a), IdbValue::String(b)) => a.cmp(b), 39 + (IdbValue::Number(_), IdbValue::String(_)) => Ordering::Less, 40 + (IdbValue::String(_), IdbValue::Number(_)) => Ordering::Greater, 41 + _ => Ordering::Equal, 42 + } 43 + } 44 + 45 + /// Extract a nested value by key path (e.g. "id" or "user.name"). 46 + fn get_by_key_path(&self, key_path: &str) -> Option<IdbValue> { 47 + let parts: Vec<&str> = key_path.split('.').collect(); 48 + let mut current = self.clone(); 49 + for part in parts { 50 + match current { 51 + IdbValue::Object(ref entries) => match entries.iter().find(|(k, _)| k == part) { 52 + Some((_, v)) => current = v.clone(), 53 + None => return None, 54 + }, 55 + _ => return None, 56 + } 57 + } 58 + Some(current) 59 + } 60 + } 61 + 62 + /// Convert a JS `Value` into an `IdbValue` (structured clone). 63 + pub fn value_to_idb(gc: &Gc<HeapObject>, val: &Value) -> Result<IdbValue, String> { 64 + match val { 65 + Value::Undefined => Ok(IdbValue::Undefined), 66 + Value::Null => Ok(IdbValue::Null), 67 + Value::Boolean(b) => Ok(IdbValue::Boolean(*b)), 68 + Value::Number(n) => Ok(IdbValue::Number(*n)), 69 + Value::String(s) => Ok(IdbValue::String(s.clone())), 70 + Value::Object(r) => { 71 + match gc.get(*r) { 72 + Some(HeapObject::Object(data)) => { 73 + if data.properties.contains_key("length") { 74 + // Array-like: extract indexed elements. 75 + let len = data 76 + .properties 77 + .get("length") 78 + .map(|p| p.value.to_number() as usize) 79 + .unwrap_or(0); 80 + let mut items = Vec::with_capacity(len); 81 + for i in 0..len { 82 + let v = data 83 + .properties 84 + .get(&i.to_string()) 85 + .map(|p| &p.value) 86 + .unwrap_or(&Value::Undefined); 87 + items.push(value_to_idb(gc, v)?); 88 + } 89 + Ok(IdbValue::Array(items)) 90 + } else { 91 + // Plain object: extract enumerable properties. 92 + let mut entries = Vec::new(); 93 + for (key, prop) in &data.properties { 94 + if prop.enumerable && !key.starts_with("__") { 95 + entries.push((key.clone(), value_to_idb(gc, &prop.value)?)); 96 + } 97 + } 98 + entries.sort_by(|a, b| a.0.cmp(&b.0)); 99 + Ok(IdbValue::Object(entries)) 100 + } 101 + } 102 + _ => Ok(IdbValue::Null), 103 + } 104 + } 105 + Value::Function(_) => Err("DataCloneError: Functions cannot be cloned".to_string()), 106 + } 107 + } 108 + 109 + /// Convert an `IdbValue` back into a JS `Value`. 110 + pub fn idb_to_value(gc: &mut Gc<HeapObject>, val: &IdbValue) -> Value { 111 + match val { 112 + IdbValue::Undefined => Value::Undefined, 113 + IdbValue::Null => Value::Null, 114 + IdbValue::Boolean(b) => Value::Boolean(*b), 115 + IdbValue::Number(n) => Value::Number(*n), 116 + IdbValue::String(s) => Value::String(s.clone()), 117 + IdbValue::Array(items) => { 118 + let mut obj = ObjectData::new(); 119 + for (i, item) in items.iter().enumerate() { 120 + obj.properties 121 + .insert(i.to_string(), Property::data(idb_to_value(gc, item))); 122 + } 123 + obj.properties.insert( 124 + "length".to_string(), 125 + Property { 126 + value: Value::Number(items.len() as f64), 127 + writable: true, 128 + enumerable: false, 129 + configurable: false, 130 + }, 131 + ); 132 + Value::Object(gc.alloc(HeapObject::Object(obj))) 133 + } 134 + IdbValue::Object(entries) => { 135 + let mut obj = ObjectData::new(); 136 + for (key, val) in entries { 137 + obj.properties 138 + .insert(key.clone(), Property::data(idb_to_value(gc, val))); 139 + } 140 + Value::Object(gc.alloc(HeapObject::Object(obj))) 141 + } 142 + } 143 + } 144 + 145 + /// Convert a JS `Value` to an IDB key (Number or String only). 146 + fn value_to_key(gc: &Gc<HeapObject>, val: &Value) -> Option<IdbValue> { 147 + match val { 148 + Value::Number(n) if !n.is_nan() => Some(IdbValue::Number(*n)), 149 + Value::String(s) => Some(IdbValue::String(s.clone())), 150 + Value::Object(r) => { 151 + // Unwrap number/string objects. 152 + match gc.get(*r) { 153 + Some(HeapObject::Object(data)) => { 154 + if let Some(prop) = data.properties.get("valueOf") { 155 + value_to_key(gc, &prop.value) 156 + } else { 157 + None 158 + } 159 + } 160 + _ => None, 161 + } 162 + } 163 + _ => None, 164 + } 165 + } 166 + 167 + // ── Core data structures ──────────────────────────────────────── 168 + 169 + /// An index definition on an object store. 170 + #[derive(Debug, Clone)] 171 + pub struct IndexDef { 172 + pub name: String, 173 + pub key_path: String, 174 + pub unique: bool, 175 + } 176 + 177 + /// An object store definition within a database. 178 + #[derive(Debug, Clone)] 179 + pub struct ObjectStoreDef { 180 + pub name: String, 181 + pub key_path: Option<String>, 182 + pub auto_increment: bool, 183 + pub current_key: u64, 184 + pub indexes: HashMap<String, IndexDef>, 185 + /// Records as (key, value) pairs, kept sorted by key. 186 + pub records: Vec<(IdbValue, IdbValue)>, 187 + } 188 + 189 + impl ObjectStoreDef { 190 + pub fn new(name: String, key_path: Option<String>, auto_increment: bool) -> Self { 191 + Self { 192 + name, 193 + key_path, 194 + auto_increment, 195 + current_key: 1, 196 + indexes: HashMap::new(), 197 + records: Vec::new(), 198 + } 199 + } 200 + 201 + /// Insert or update a record. Returns the key used. 202 + fn put(&mut self, key: IdbValue, value: IdbValue) -> IdbValue { 203 + // Find existing record with same key. 204 + if let Some(pos) = self.records.iter().position(|(k, _)| k == &key) { 205 + self.records[pos].1 = value; 206 + } else { 207 + // Insert in sorted order. 208 + let pos = self 209 + .records 210 + .binary_search_by(|(k, _)| k.key_cmp(&key)) 211 + .unwrap_or_else(|e| e); 212 + self.records.insert(pos, (key.clone(), value)); 213 + } 214 + key 215 + } 216 + 217 + /// Get a record by key. 218 + fn get(&self, key: &IdbValue) -> Option<&IdbValue> { 219 + self.records.iter().find(|(k, _)| k == key).map(|(_, v)| v) 220 + } 221 + 222 + /// Delete a record by key. Returns true if found. 223 + fn delete(&mut self, key: &IdbValue) -> bool { 224 + if let Some(pos) = self.records.iter().position(|(k, _)| k == key) { 225 + self.records.remove(pos); 226 + true 227 + } else { 228 + false 229 + } 230 + } 231 + 232 + /// Delete all records. 233 + fn clear(&mut self) { 234 + self.records.clear(); 235 + } 236 + 237 + /// Number of records. 238 + fn count(&self) -> usize { 239 + self.records.len() 240 + } 241 + 242 + /// Get all record values. 243 + fn get_all(&self) -> Vec<&IdbValue> { 244 + self.records.iter().map(|(_, v)| v).collect() 245 + } 246 + 247 + /// Look up a record by index key. 248 + fn index_get(&self, index_name: &str, key: &IdbValue) -> Option<&IdbValue> { 249 + let index = self.indexes.get(index_name)?; 250 + for (_, value) in &self.records { 251 + if let Some(indexed_val) = value.get_by_key_path(&index.key_path) { 252 + if &indexed_val == key { 253 + return Some(value); 254 + } 255 + } 256 + } 257 + None 258 + } 259 + 260 + /// Extract the key from a value using the store's keyPath, 261 + /// or generate one if autoIncrement is enabled. 262 + fn extract_key( 263 + &mut self, 264 + value: &IdbValue, 265 + explicit_key: Option<IdbValue>, 266 + ) -> Option<IdbValue> { 267 + if let Some(key) = explicit_key { 268 + return Some(key); 269 + } 270 + if let Some(ref kp) = self.key_path { 271 + return value.get_by_key_path(kp); 272 + } 273 + if self.auto_increment { 274 + let key = IdbValue::Number(self.current_key as f64); 275 + self.current_key += 1; 276 + return Some(key); 277 + } 278 + None 279 + } 280 + 281 + /// Check if an index's unique constraint would be violated. 282 + fn check_unique_index( 283 + &self, 284 + index: &IndexDef, 285 + value: &IdbValue, 286 + replacing_key: Option<&IdbValue>, 287 + ) -> bool { 288 + if !index.unique { 289 + return true; 290 + } 291 + let indexed_val = match value.get_by_key_path(&index.key_path) { 292 + Some(v) => v, 293 + None => return true, 294 + }; 295 + for (k, v) in &self.records { 296 + if let Some(existing) = v.get_by_key_path(&index.key_path) { 297 + if existing == indexed_val { 298 + // Allow if we're replacing the same record. 299 + if let Some(rk) = replacing_key { 300 + if k == rk { 301 + continue; 302 + } 303 + } 304 + return false; 305 + } 306 + } 307 + } 308 + true 309 + } 310 + } 311 + 312 + /// A database definition. 313 + #[derive(Debug, Clone)] 314 + pub struct DatabaseDef { 315 + pub name: String, 316 + pub version: u64, 317 + pub stores: HashMap<String, ObjectStoreDef>, 318 + } 319 + 320 + impl DatabaseDef { 321 + pub fn new(name: String, version: u64) -> Self { 322 + Self { 323 + name, 324 + version, 325 + stores: HashMap::new(), 326 + } 327 + } 328 + } 329 + 330 + /// All IndexedDB state for a single origin. 331 + #[derive(Debug, Clone)] 332 + pub struct IndexedDbState { 333 + pub databases: HashMap<String, DatabaseDef>, 334 + } 335 + 336 + impl Default for IndexedDbState { 337 + fn default() -> Self { 338 + Self::new() 339 + } 340 + } 341 + 342 + impl IndexedDbState { 343 + pub fn new() -> Self { 344 + Self { 345 + databases: HashMap::new(), 346 + } 347 + } 348 + 349 + /// Serialize the entire state to binary. 350 + /// 351 + /// Format: 352 + /// ```text 353 + /// db_count:u32 354 + /// for each db: 355 + /// name_len:u32 name_bytes version:u64 store_count:u32 356 + /// for each store: 357 + /// name_len:u32 name_bytes kp_flag:u8 [kp_len:u32 kp_bytes] 358 + /// auto_inc:u8 current_key:u64 359 + /// index_count:u32 360 + /// for each index: 361 + /// name_len:u32 name_bytes kp_len:u32 kp_bytes unique:u8 362 + /// record_count:u32 363 + /// for each record: 364 + /// key_bytes value_bytes (IdbValue serialized) 365 + /// ``` 366 + pub fn serialize(&self) -> Vec<u8> { 367 + let mut buf = Vec::new(); 368 + buf.extend_from_slice(&(self.databases.len() as u32).to_le_bytes()); 369 + for db in self.databases.values() { 370 + write_str(&mut buf, &db.name); 371 + buf.extend_from_slice(&db.version.to_le_bytes()); 372 + buf.extend_from_slice(&(db.stores.len() as u32).to_le_bytes()); 373 + for store in db.stores.values() { 374 + write_str(&mut buf, &store.name); 375 + match &store.key_path { 376 + Some(kp) => { 377 + buf.push(1); 378 + write_str(&mut buf, kp); 379 + } 380 + None => buf.push(0), 381 + } 382 + buf.push(u8::from(store.auto_increment)); 383 + buf.extend_from_slice(&store.current_key.to_le_bytes()); 384 + buf.extend_from_slice(&(store.indexes.len() as u32).to_le_bytes()); 385 + for idx in store.indexes.values() { 386 + write_str(&mut buf, &idx.name); 387 + write_str(&mut buf, &idx.key_path); 388 + buf.push(u8::from(idx.unique)); 389 + } 390 + buf.extend_from_slice(&(store.records.len() as u32).to_le_bytes()); 391 + for (key, value) in &store.records { 392 + serialize_idb_value(&mut buf, key); 393 + serialize_idb_value(&mut buf, value); 394 + } 395 + } 396 + } 397 + buf 398 + } 399 + 400 + /// Deserialize from the binary format produced by [`serialize`]. 401 + pub fn deserialize(data: &[u8]) -> Option<Self> { 402 + let mut pos = 0; 403 + let db_count = read_u32(data, &mut pos)?; 404 + let mut databases = HashMap::new(); 405 + for _ in 0..db_count { 406 + let name = read_string(data, &mut pos)?; 407 + let version = read_u64(data, &mut pos)?; 408 + let store_count = read_u32(data, &mut pos)?; 409 + let mut stores = HashMap::new(); 410 + for _ in 0..store_count { 411 + let sname = read_string(data, &mut pos)?; 412 + let kp_flag = read_u8(data, &mut pos)?; 413 + let key_path = if kp_flag == 1 { 414 + Some(read_string(data, &mut pos)?) 415 + } else { 416 + None 417 + }; 418 + let auto_increment = read_u8(data, &mut pos)? != 0; 419 + let current_key = read_u64(data, &mut pos)?; 420 + let index_count = read_u32(data, &mut pos)?; 421 + let mut indexes = HashMap::new(); 422 + for _ in 0..index_count { 423 + let iname = read_string(data, &mut pos)?; 424 + let ikp = read_string(data, &mut pos)?; 425 + let unique = read_u8(data, &mut pos)? != 0; 426 + indexes.insert( 427 + iname.clone(), 428 + IndexDef { 429 + name: iname, 430 + key_path: ikp, 431 + unique, 432 + }, 433 + ); 434 + } 435 + let record_count = read_u32(data, &mut pos)?; 436 + let mut records = Vec::with_capacity(record_count as usize); 437 + for _ in 0..record_count { 438 + let key = deserialize_idb_value(data, &mut pos)?; 439 + let value = deserialize_idb_value(data, &mut pos)?; 440 + records.push((key, value)); 441 + } 442 + stores.insert( 443 + sname.clone(), 444 + ObjectStoreDef { 445 + name: sname, 446 + key_path, 447 + auto_increment, 448 + current_key, 449 + indexes, 450 + records, 451 + }, 452 + ); 453 + } 454 + databases.insert( 455 + name.clone(), 456 + DatabaseDef { 457 + name, 458 + version, 459 + stores, 460 + }, 461 + ); 462 + } 463 + Some(IndexedDbState { databases }) 464 + } 465 + } 466 + 467 + // ── Binary serialization helpers ──────────────────────────────── 468 + 469 + fn write_str(buf: &mut Vec<u8>, s: &str) { 470 + let bytes = s.as_bytes(); 471 + buf.extend_from_slice(&(bytes.len() as u32).to_le_bytes()); 472 + buf.extend_from_slice(bytes); 473 + } 474 + 475 + fn read_u8(data: &[u8], pos: &mut usize) -> Option<u8> { 476 + if *pos >= data.len() { 477 + return None; 478 + } 479 + let v = data[*pos]; 480 + *pos += 1; 481 + Some(v) 482 + } 483 + 484 + fn read_u32(data: &[u8], pos: &mut usize) -> Option<u32> { 485 + if *pos + 4 > data.len() { 486 + return None; 487 + } 488 + let v = u32::from_le_bytes(data[*pos..*pos + 4].try_into().ok()?); 489 + *pos += 4; 490 + Some(v) 491 + } 492 + 493 + fn read_u64(data: &[u8], pos: &mut usize) -> Option<u64> { 494 + if *pos + 8 > data.len() { 495 + return None; 496 + } 497 + let v = u64::from_le_bytes(data[*pos..*pos + 8].try_into().ok()?); 498 + *pos += 8; 499 + Some(v) 500 + } 501 + 502 + fn read_string(data: &[u8], pos: &mut usize) -> Option<String> { 503 + let len = read_u32(data, pos)? as usize; 504 + if *pos + len > data.len() { 505 + return None; 506 + } 507 + let s = std::str::from_utf8(&data[*pos..*pos + len]).ok()?; 508 + *pos += len; 509 + Some(s.to_string()) 510 + } 511 + 512 + /// Tags for IdbValue serialization. 513 + const TAG_UNDEFINED: u8 = 0; 514 + const TAG_NULL: u8 = 1; 515 + const TAG_BOOL_FALSE: u8 = 2; 516 + const TAG_BOOL_TRUE: u8 = 3; 517 + const TAG_NUMBER: u8 = 4; 518 + const TAG_STRING: u8 = 5; 519 + const TAG_ARRAY: u8 = 6; 520 + const TAG_OBJECT: u8 = 7; 521 + 522 + fn serialize_idb_value(buf: &mut Vec<u8>, val: &IdbValue) { 523 + match val { 524 + IdbValue::Undefined => buf.push(TAG_UNDEFINED), 525 + IdbValue::Null => buf.push(TAG_NULL), 526 + IdbValue::Boolean(false) => buf.push(TAG_BOOL_FALSE), 527 + IdbValue::Boolean(true) => buf.push(TAG_BOOL_TRUE), 528 + IdbValue::Number(n) => { 529 + buf.push(TAG_NUMBER); 530 + buf.extend_from_slice(&n.to_le_bytes()); 531 + } 532 + IdbValue::String(s) => { 533 + buf.push(TAG_STRING); 534 + write_str(buf, s); 535 + } 536 + IdbValue::Array(items) => { 537 + buf.push(TAG_ARRAY); 538 + buf.extend_from_slice(&(items.len() as u32).to_le_bytes()); 539 + for item in items { 540 + serialize_idb_value(buf, item); 541 + } 542 + } 543 + IdbValue::Object(entries) => { 544 + buf.push(TAG_OBJECT); 545 + buf.extend_from_slice(&(entries.len() as u32).to_le_bytes()); 546 + for (key, value) in entries { 547 + write_str(buf, key); 548 + serialize_idb_value(buf, value); 549 + } 550 + } 551 + } 552 + } 553 + 554 + fn deserialize_idb_value(data: &[u8], pos: &mut usize) -> Option<IdbValue> { 555 + let tag = read_u8(data, pos)?; 556 + match tag { 557 + TAG_UNDEFINED => Some(IdbValue::Undefined), 558 + TAG_NULL => Some(IdbValue::Null), 559 + TAG_BOOL_FALSE => Some(IdbValue::Boolean(false)), 560 + TAG_BOOL_TRUE => Some(IdbValue::Boolean(true)), 561 + TAG_NUMBER => { 562 + if *pos + 8 > data.len() { 563 + return None; 564 + } 565 + let n = f64::from_le_bytes(data[*pos..*pos + 8].try_into().ok()?); 566 + *pos += 8; 567 + Some(IdbValue::Number(n)) 568 + } 569 + TAG_STRING => { 570 + let s = read_string(data, pos)?; 571 + Some(IdbValue::String(s)) 572 + } 573 + TAG_ARRAY => { 574 + let count = read_u32(data, pos)? as usize; 575 + let mut items = Vec::with_capacity(count); 576 + for _ in 0..count { 577 + items.push(deserialize_idb_value(data, pos)?); 578 + } 579 + Some(IdbValue::Array(items)) 580 + } 581 + TAG_OBJECT => { 582 + let count = read_u32(data, pos)? as usize; 583 + let mut entries = Vec::with_capacity(count); 584 + for _ in 0..count { 585 + let key = read_string(data, pos)?; 586 + let value = deserialize_idb_value(data, pos)?; 587 + entries.push((key, value)); 588 + } 589 + Some(IdbValue::Object(entries)) 590 + } 591 + _ => None, 592 + } 593 + } 594 + 595 + // ── Pending event queue ───────────────────────────────────────── 596 + 597 + /// The kind of IDB event to fire. 598 + pub enum IdbEventKind { 599 + UpgradeNeeded { old_version: f64, new_version: f64 }, 600 + Success, 601 + Error(String), 602 + Complete, 603 + Abort, 604 + } 605 + 606 + /// A pending IDB event to fire in the event loop. 607 + pub struct PendingIdbEvent { 608 + pub target: GcRef, 609 + pub kind: IdbEventKind, 610 + } 611 + 612 + thread_local! { 613 + static PENDING_IDB_EVENTS: RefCell<Vec<PendingIdbEvent>> = const { RefCell::new(Vec::new()) }; 614 + } 615 + 616 + fn queue_idb_event(event: PendingIdbEvent) { 617 + PENDING_IDB_EVENTS.with(|q| q.borrow_mut().push(event)); 618 + } 619 + 620 + /// Take all pending IDB events (called by the VM event loop). 621 + pub fn take_pending_idb_events() -> Vec<PendingIdbEvent> { 622 + PENDING_IDB_EVENTS.with(|q| std::mem::take(&mut *q.borrow_mut())) 623 + } 624 + 625 + /// Whether there are pending IDB events. 626 + pub fn has_pending_idb_events() -> bool { 627 + PENDING_IDB_EVENTS.with(|q| !q.borrow().is_empty()) 628 + } 629 + 630 + /// GC roots for pending IDB events. 631 + pub fn idb_gc_roots() -> Vec<GcRef> { 632 + PENDING_IDB_EVENTS.with(|q| q.borrow().iter().map(|e| e.target).collect()) 633 + } 634 + 635 + /// Reset IDB event state (for tests). 636 + pub fn reset_idb_events() { 637 + PENDING_IDB_EVENTS.with(|q| q.borrow_mut().clear()); 638 + } 639 + 640 + // ── Internal property keys ────────────────────────────────────── 641 + 642 + const IDB_TYPE_KEY: &str = "__idb_type__"; 643 + const IDB_DB_NAME_KEY: &str = "__idb_db_name__"; 644 + const IDB_STORE_NAME_KEY: &str = "__idb_store_name__"; 645 + const IDB_INDEX_NAME_KEY: &str = "__idb_index_name__"; 646 + const IDB_TX_MODE_KEY: &str = "__idb_tx_mode__"; 647 + const IDB_UPGRADING_KEY: &str = "__idb_upgrading__"; 648 + 649 + type NativeMethod = ( 650 + &'static str, 651 + fn(&[Value], &mut NativeContext) -> Result<Value, RuntimeError>, 652 + ); 653 + 654 + // ── Helper: read internal property ────────────────────────────── 655 + 656 + fn get_internal_str(gc: &Gc<HeapObject>, obj: GcRef, key: &str) -> Option<String> { 657 + match gc.get(obj) { 658 + Some(HeapObject::Object(data)) => match data.properties.get(key) { 659 + Some(prop) => match &prop.value { 660 + Value::String(s) => Some(s.clone()), 661 + _ => None, 662 + }, 663 + None => None, 664 + }, 665 + _ => None, 666 + } 667 + } 668 + 669 + fn get_internal_bool(gc: &Gc<HeapObject>, obj: GcRef, key: &str) -> bool { 670 + match gc.get(obj) { 671 + Some(HeapObject::Object(data)) => data 672 + .properties 673 + .get(key) 674 + .map(|p| p.value.to_boolean()) 675 + .unwrap_or(false), 676 + _ => false, 677 + } 678 + } 679 + 680 + fn get_obj_prop(gc: &Gc<HeapObject>, obj: GcRef, key: &str) -> Value { 681 + match gc.get(obj) { 682 + Some(HeapObject::Object(data)) => data 683 + .properties 684 + .get(key) 685 + .map(|p| p.value.clone()) 686 + .unwrap_or(Value::Undefined), 687 + _ => Value::Undefined, 688 + } 689 + } 690 + 691 + // ── JS wrapper object creation ────────────────────────────────── 692 + 693 + fn create_idb_request(gc: &mut Gc<HeapObject>, object_proto: Option<GcRef>) -> GcRef { 694 + let mut data = ObjectData::new(); 695 + data.prototype = object_proto; 696 + data.properties.insert( 697 + IDB_TYPE_KEY.to_string(), 698 + Property::builtin(Value::String("request".to_string())), 699 + ); 700 + data.properties 701 + .insert("result".to_string(), Property::data(Value::Undefined)); 702 + data.properties 703 + .insert("error".to_string(), Property::data(Value::Null)); 704 + data.properties.insert( 705 + "readyState".to_string(), 706 + Property::data(Value::String("pending".to_string())), 707 + ); 708 + data.properties 709 + .insert("onsuccess".to_string(), Property::data(Value::Null)); 710 + data.properties 711 + .insert("onerror".to_string(), Property::data(Value::Null)); 712 + data.properties 713 + .insert("onupgradeneeded".to_string(), Property::data(Value::Null)); 714 + gc.alloc(HeapObject::Object(data)) 715 + } 716 + 717 + fn create_idb_database_wrapper( 718 + gc: &mut Gc<HeapObject>, 719 + name: &str, 720 + version: u64, 721 + store_names: &[String], 722 + object_proto: Option<GcRef>, 723 + ) -> GcRef { 724 + let mut data = ObjectData::new(); 725 + data.prototype = object_proto; 726 + data.properties.insert( 727 + IDB_TYPE_KEY.to_string(), 728 + Property::builtin(Value::String("database".to_string())), 729 + ); 730 + data.properties.insert( 731 + IDB_DB_NAME_KEY.to_string(), 732 + Property::builtin(Value::String(name.to_string())), 733 + ); 734 + data.properties.insert( 735 + "name".to_string(), 736 + Property::data(Value::String(name.to_string())), 737 + ); 738 + data.properties.insert( 739 + "version".to_string(), 740 + Property::data(Value::Number(version as f64)), 741 + ); 742 + data.properties.insert( 743 + IDB_UPGRADING_KEY.to_string(), 744 + Property::builtin(Value::Boolean(false)), 745 + ); 746 + data.properties 747 + .insert("onclose".to_string(), Property::data(Value::Null)); 748 + 749 + // Build objectStoreNames as an array-like object. 750 + let names_ref = make_string_list(gc, store_names); 751 + data.properties.insert( 752 + "objectStoreNames".to_string(), 753 + Property::data(Value::Object(names_ref)), 754 + ); 755 + 756 + let db_ref = gc.alloc(HeapObject::Object(data)); 757 + 758 + // Register methods. 759 + let methods: &[NativeMethod] = &[ 760 + ("createObjectStore", idb_db_create_object_store), 761 + ("deleteObjectStore", idb_db_delete_object_store), 762 + ("transaction", idb_db_transaction), 763 + ("close", idb_db_close), 764 + ]; 765 + for &(name, callback) in methods { 766 + let func = make_native(gc, name, callback); 767 + set_builtin_prop(gc, db_ref, name, Value::Function(func)); 768 + } 769 + 770 + db_ref 771 + } 772 + 773 + fn create_idb_transaction_wrapper( 774 + gc: &mut Gc<HeapObject>, 775 + db_name: &str, 776 + mode: &str, 777 + db_ref: GcRef, 778 + object_proto: Option<GcRef>, 779 + ) -> GcRef { 780 + let mut data = ObjectData::new(); 781 + data.prototype = object_proto; 782 + data.properties.insert( 783 + IDB_TYPE_KEY.to_string(), 784 + Property::builtin(Value::String("transaction".to_string())), 785 + ); 786 + data.properties.insert( 787 + IDB_DB_NAME_KEY.to_string(), 788 + Property::builtin(Value::String(db_name.to_string())), 789 + ); 790 + data.properties.insert( 791 + IDB_TX_MODE_KEY.to_string(), 792 + Property::builtin(Value::String(mode.to_string())), 793 + ); 794 + data.properties.insert( 795 + "mode".to_string(), 796 + Property::data(Value::String(mode.to_string())), 797 + ); 798 + data.properties 799 + .insert("db".to_string(), Property::data(Value::Object(db_ref))); 800 + data.properties 801 + .insert("oncomplete".to_string(), Property::data(Value::Null)); 802 + data.properties 803 + .insert("onabort".to_string(), Property::data(Value::Null)); 804 + data.properties 805 + .insert("onerror".to_string(), Property::data(Value::Null)); 806 + 807 + let tx_ref = gc.alloc(HeapObject::Object(data)); 808 + 809 + let methods: &[NativeMethod] = &[ 810 + ("objectStore", idb_tx_object_store), 811 + ("abort", idb_tx_abort), 812 + ]; 813 + for &(name, callback) in methods { 814 + let func = make_native(gc, name, callback); 815 + set_builtin_prop(gc, tx_ref, name, Value::Function(func)); 816 + } 817 + 818 + tx_ref 819 + } 820 + 821 + fn create_idb_store_wrapper( 822 + gc: &mut Gc<HeapObject>, 823 + db_name: &str, 824 + store_name: &str, 825 + tx_ref: GcRef, 826 + object_proto: Option<GcRef>, 827 + ) -> GcRef { 828 + let mut data = ObjectData::new(); 829 + data.prototype = object_proto; 830 + data.properties.insert( 831 + IDB_TYPE_KEY.to_string(), 832 + Property::builtin(Value::String("objectStore".to_string())), 833 + ); 834 + data.properties.insert( 835 + IDB_DB_NAME_KEY.to_string(), 836 + Property::builtin(Value::String(db_name.to_string())), 837 + ); 838 + data.properties.insert( 839 + IDB_STORE_NAME_KEY.to_string(), 840 + Property::builtin(Value::String(store_name.to_string())), 841 + ); 842 + data.properties.insert( 843 + "name".to_string(), 844 + Property::data(Value::String(store_name.to_string())), 845 + ); 846 + data.properties.insert( 847 + "transaction".to_string(), 848 + Property::data(Value::Object(tx_ref)), 849 + ); 850 + 851 + let store_ref = gc.alloc(HeapObject::Object(data)); 852 + 853 + let methods: &[NativeMethod] = &[ 854 + ("put", idb_store_put), 855 + ("get", idb_store_get), 856 + ("delete", idb_store_delete), 857 + ("clear", idb_store_clear), 858 + ("count", idb_store_count), 859 + ("getAll", idb_store_get_all), 860 + ("createIndex", idb_store_create_index), 861 + ]; 862 + for &(name, callback) in methods { 863 + let func = make_native(gc, name, callback); 864 + set_builtin_prop(gc, store_ref, name, Value::Function(func)); 865 + } 866 + 867 + store_ref 868 + } 869 + 870 + fn create_idb_index_wrapper( 871 + gc: &mut Gc<HeapObject>, 872 + db_name: &str, 873 + store_name: &str, 874 + index_name: &str, 875 + object_proto: Option<GcRef>, 876 + ) -> GcRef { 877 + let mut data = ObjectData::new(); 878 + data.prototype = object_proto; 879 + data.properties.insert( 880 + IDB_TYPE_KEY.to_string(), 881 + Property::builtin(Value::String("index".to_string())), 882 + ); 883 + data.properties.insert( 884 + IDB_DB_NAME_KEY.to_string(), 885 + Property::builtin(Value::String(db_name.to_string())), 886 + ); 887 + data.properties.insert( 888 + IDB_STORE_NAME_KEY.to_string(), 889 + Property::builtin(Value::String(store_name.to_string())), 890 + ); 891 + data.properties.insert( 892 + IDB_INDEX_NAME_KEY.to_string(), 893 + Property::builtin(Value::String(index_name.to_string())), 894 + ); 895 + data.properties.insert( 896 + "name".to_string(), 897 + Property::data(Value::String(index_name.to_string())), 898 + ); 899 + 900 + let idx_ref = gc.alloc(HeapObject::Object(data)); 901 + 902 + let methods: &[NativeMethod] = &[("get", idb_index_get)]; 903 + for &(name, callback) in methods { 904 + let func = make_native(gc, name, callback); 905 + set_builtin_prop(gc, idx_ref, name, Value::Function(func)); 906 + } 907 + 908 + idx_ref 909 + } 910 + 911 + /// Create an array-like DOMStringList object. 912 + fn make_string_list(gc: &mut Gc<HeapObject>, items: &[String]) -> GcRef { 913 + let mut obj = ObjectData::new(); 914 + for (i, s) in items.iter().enumerate() { 915 + obj.properties 916 + .insert(i.to_string(), Property::data(Value::String(s.clone()))); 917 + } 918 + obj.properties.insert( 919 + "length".to_string(), 920 + Property { 921 + value: Value::Number(items.len() as f64), 922 + writable: true, 923 + enumerable: false, 924 + configurable: false, 925 + }, 926 + ); 927 + gc.alloc(HeapObject::Object(obj)) 928 + } 929 + 930 + /// Create an IDB event object for firing callbacks. 931 + pub fn create_idb_event( 932 + gc: &mut Gc<HeapObject>, 933 + event_type: &str, 934 + target: GcRef, 935 + old_version: f64, 936 + new_version: f64, 937 + ) -> GcRef { 938 + let mut data = ObjectData::new(); 939 + data.properties.insert( 940 + "type".to_string(), 941 + Property::data(Value::String(event_type.to_string())), 942 + ); 943 + data.properties 944 + .insert("target".to_string(), Property::data(Value::Object(target))); 945 + data.properties.insert( 946 + "oldVersion".to_string(), 947 + Property::data(Value::Number(old_version)), 948 + ); 949 + data.properties.insert( 950 + "newVersion".to_string(), 951 + Property::data(Value::Number(new_version)), 952 + ); 953 + gc.alloc(HeapObject::Object(data)) 954 + } 955 + 956 + // ── Native function implementations ───────────────────────────── 957 + 958 + /// `indexedDB.open(name, version?)` — open or create a database. 959 + fn idb_open(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 960 + let bridge = ctx 961 + .dom_bridge 962 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 963 + 964 + let name = args 965 + .first() 966 + .map(|v| v.to_js_string(ctx.gc)) 967 + .unwrap_or_default(); 968 + if name.is_empty() { 969 + return Err(RuntimeError::type_error( 970 + "indexedDB.open requires a database name", 971 + )); 972 + } 973 + let requested_version = match args.get(1) { 974 + Some(Value::Number(n)) if *n >= 1.0 => *n as u64, 975 + Some(Value::Undefined) | None => 1, 976 + _ => { 977 + return Err(RuntimeError::type_error( 978 + "version must be a positive integer", 979 + )) 980 + } 981 + }; 982 + 983 + let request_ref = create_idb_request(ctx.gc, None); 984 + 985 + let mut idb = bridge.indexeddb.borrow_mut(); 986 + let old_version; 987 + let needs_upgrade; 988 + 989 + if let Some(db) = idb.databases.get(&name) { 990 + old_version = db.version; 991 + if requested_version < old_version { 992 + // Cannot downgrade. 993 + drop(idb); 994 + set_builtin_prop( 995 + ctx.gc, 996 + request_ref, 997 + "readyState", 998 + Value::String("done".to_string()), 999 + ); 1000 + set_builtin_prop( 1001 + ctx.gc, 1002 + request_ref, 1003 + "error", 1004 + Value::String( 1005 + "VersionError: requested version is less than existing version".to_string(), 1006 + ), 1007 + ); 1008 + queue_idb_event(PendingIdbEvent { 1009 + target: request_ref, 1010 + kind: IdbEventKind::Error( 1011 + "VersionError: requested version is less than existing version".to_string(), 1012 + ), 1013 + }); 1014 + return Ok(Value::Object(request_ref)); 1015 + } 1016 + needs_upgrade = requested_version > old_version; 1017 + if needs_upgrade { 1018 + idb.databases.get_mut(&name).unwrap().version = requested_version; 1019 + } 1020 + } else { 1021 + old_version = 0; 1022 + needs_upgrade = true; 1023 + idb.databases.insert( 1024 + name.clone(), 1025 + DatabaseDef::new(name.clone(), requested_version), 1026 + ); 1027 + } 1028 + 1029 + let store_names: Vec<String> = idb 1030 + .databases 1031 + .get(&name) 1032 + .map(|db| db.stores.keys().cloned().collect()) 1033 + .unwrap_or_default(); 1034 + drop(idb); 1035 + 1036 + let db_ref = create_idb_database_wrapper(ctx.gc, &name, requested_version, &store_names, None); 1037 + 1038 + // Set request.result = db. 1039 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Object(db_ref)); 1040 + 1041 + if needs_upgrade { 1042 + // Mark database as in upgrade mode. 1043 + set_builtin_prop(ctx.gc, db_ref, IDB_UPGRADING_KEY, Value::Boolean(true)); 1044 + 1045 + // Create the version change transaction wrapper. 1046 + let tx_ref = create_idb_transaction_wrapper(ctx.gc, &name, "versionchange", db_ref, None); 1047 + set_builtin_prop(ctx.gc, request_ref, "transaction", Value::Object(tx_ref)); 1048 + 1049 + queue_idb_event(PendingIdbEvent { 1050 + target: request_ref, 1051 + kind: IdbEventKind::UpgradeNeeded { 1052 + old_version: old_version as f64, 1053 + new_version: requested_version as f64, 1054 + }, 1055 + }); 1056 + } 1057 + 1058 + queue_idb_event(PendingIdbEvent { 1059 + target: request_ref, 1060 + kind: IdbEventKind::Success, 1061 + }); 1062 + 1063 + Ok(Value::Object(request_ref)) 1064 + } 1065 + 1066 + /// `indexedDB.deleteDatabase(name)` — delete a database. 1067 + fn idb_delete_database(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1068 + let bridge = ctx 1069 + .dom_bridge 1070 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1071 + 1072 + let name = args 1073 + .first() 1074 + .map(|v| v.to_js_string(ctx.gc)) 1075 + .unwrap_or_default(); 1076 + 1077 + bridge.indexeddb.borrow_mut().databases.remove(&name); 1078 + 1079 + let request_ref = create_idb_request(ctx.gc, None); 1080 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Undefined); 1081 + 1082 + queue_idb_event(PendingIdbEvent { 1083 + target: request_ref, 1084 + kind: IdbEventKind::Success, 1085 + }); 1086 + 1087 + Ok(Value::Object(request_ref)) 1088 + } 1089 + 1090 + /// `database.createObjectStore(name, options?)` — create a store (upgrade only). 1091 + fn idb_db_create_object_store( 1092 + args: &[Value], 1093 + ctx: &mut NativeContext, 1094 + ) -> Result<Value, RuntimeError> { 1095 + let bridge = ctx 1096 + .dom_bridge 1097 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1098 + 1099 + let db_ref = match &ctx.this { 1100 + Value::Object(r) => *r, 1101 + _ => { 1102 + return Err(RuntimeError::type_error( 1103 + "createObjectStore on non-database", 1104 + )) 1105 + } 1106 + }; 1107 + 1108 + // Must be in upgrade mode. 1109 + if !get_internal_bool(ctx.gc, db_ref, IDB_UPGRADING_KEY) { 1110 + return Err(RuntimeError { 1111 + kind: ErrorKind::Error, 1112 + message: "InvalidStateError: not in a version change transaction".to_string(), 1113 + }); 1114 + } 1115 + 1116 + let db_name = get_internal_str(ctx.gc, db_ref, IDB_DB_NAME_KEY) 1117 + .ok_or_else(|| RuntimeError::type_error("invalid database object"))?; 1118 + 1119 + let store_name = args 1120 + .first() 1121 + .map(|v| v.to_js_string(ctx.gc)) 1122 + .unwrap_or_default(); 1123 + if store_name.is_empty() { 1124 + return Err(RuntimeError::type_error("store name is required")); 1125 + } 1126 + 1127 + let mut key_path: Option<String> = None; 1128 + let mut auto_increment = false; 1129 + if let Some(Value::Object(opts_ref)) = args.get(1) { 1130 + if let Some(HeapObject::Object(opts)) = ctx.gc.get(*opts_ref) { 1131 + if let Some(prop) = opts.properties.get("keyPath") { 1132 + if let Value::String(kp) = &prop.value { 1133 + key_path = Some(kp.clone()); 1134 + } 1135 + } 1136 + if let Some(prop) = opts.properties.get("autoIncrement") { 1137 + auto_increment = prop.value.to_boolean(); 1138 + } 1139 + } 1140 + } 1141 + 1142 + { 1143 + let mut idb = bridge.indexeddb.borrow_mut(); 1144 + let db = idb 1145 + .databases 1146 + .get_mut(&db_name) 1147 + .ok_or_else(|| RuntimeError::type_error("database not found"))?; 1148 + if db.stores.contains_key(&store_name) { 1149 + return Err(RuntimeError { 1150 + kind: ErrorKind::Error, 1151 + message: format!( 1152 + "ConstraintError: object store '{}' already exists", 1153 + store_name 1154 + ), 1155 + }); 1156 + } 1157 + db.stores.insert( 1158 + store_name.clone(), 1159 + ObjectStoreDef::new(store_name.clone(), key_path, auto_increment), 1160 + ); 1161 + } 1162 + 1163 + // Update objectStoreNames on the database wrapper. 1164 + let store_names: Vec<String> = bridge 1165 + .indexeddb 1166 + .borrow() 1167 + .databases 1168 + .get(&db_name) 1169 + .map(|db| db.stores.keys().cloned().collect()) 1170 + .unwrap_or_default(); 1171 + let names_ref = make_string_list(ctx.gc, &store_names); 1172 + set_builtin_prop(ctx.gc, db_ref, "objectStoreNames", Value::Object(names_ref)); 1173 + 1174 + // Return an IDBObjectStore wrapper. During upgrade, use versionchange tx. 1175 + let tx_ref = match get_obj_prop(ctx.gc, db_ref, "transaction") { 1176 + Value::Object(r) => r, 1177 + _ => { 1178 + // Create a dummy transaction wrapper for the upgrade. 1179 + create_idb_transaction_wrapper(ctx.gc, &db_name, "versionchange", db_ref, None) 1180 + } 1181 + }; 1182 + 1183 + // Look for existing transaction property on the request. 1184 + let request_tx = get_obj_prop(ctx.gc, db_ref, "__upgrade_tx__"); 1185 + let actual_tx = if let Value::Object(r) = request_tx { 1186 + r 1187 + } else { 1188 + tx_ref 1189 + }; 1190 + 1191 + let store_ref = create_idb_store_wrapper(ctx.gc, &db_name, &store_name, actual_tx, None); 1192 + Ok(Value::Object(store_ref)) 1193 + } 1194 + 1195 + /// `database.deleteObjectStore(name)` — delete a store (upgrade only). 1196 + fn idb_db_delete_object_store( 1197 + args: &[Value], 1198 + ctx: &mut NativeContext, 1199 + ) -> Result<Value, RuntimeError> { 1200 + let bridge = ctx 1201 + .dom_bridge 1202 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1203 + 1204 + let db_ref = match &ctx.this { 1205 + Value::Object(r) => *r, 1206 + _ => { 1207 + return Err(RuntimeError::type_error( 1208 + "deleteObjectStore on non-database", 1209 + )) 1210 + } 1211 + }; 1212 + 1213 + if !get_internal_bool(ctx.gc, db_ref, IDB_UPGRADING_KEY) { 1214 + return Err(RuntimeError { 1215 + kind: ErrorKind::Error, 1216 + message: "InvalidStateError: not in a version change transaction".to_string(), 1217 + }); 1218 + } 1219 + 1220 + let db_name = get_internal_str(ctx.gc, db_ref, IDB_DB_NAME_KEY) 1221 + .ok_or_else(|| RuntimeError::type_error("invalid database object"))?; 1222 + 1223 + let store_name = args 1224 + .first() 1225 + .map(|v| v.to_js_string(ctx.gc)) 1226 + .unwrap_or_default(); 1227 + 1228 + { 1229 + let mut idb = bridge.indexeddb.borrow_mut(); 1230 + let db = idb 1231 + .databases 1232 + .get_mut(&db_name) 1233 + .ok_or_else(|| RuntimeError::type_error("database not found"))?; 1234 + if db.stores.remove(&store_name).is_none() { 1235 + return Err(RuntimeError { 1236 + kind: ErrorKind::Error, 1237 + message: format!("NotFoundError: object store '{}' not found", store_name), 1238 + }); 1239 + } 1240 + } 1241 + 1242 + // Update objectStoreNames. 1243 + let store_names: Vec<String> = bridge 1244 + .indexeddb 1245 + .borrow() 1246 + .databases 1247 + .get(&db_name) 1248 + .map(|db| db.stores.keys().cloned().collect()) 1249 + .unwrap_or_default(); 1250 + let names_ref = make_string_list(ctx.gc, &store_names); 1251 + set_builtin_prop(ctx.gc, db_ref, "objectStoreNames", Value::Object(names_ref)); 1252 + 1253 + Ok(Value::Undefined) 1254 + } 1255 + 1256 + /// `database.transaction(storeNames, mode?)` — start a transaction. 1257 + fn idb_db_transaction(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1258 + let bridge = ctx 1259 + .dom_bridge 1260 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1261 + 1262 + let db_ref = match &ctx.this { 1263 + Value::Object(r) => *r, 1264 + _ => return Err(RuntimeError::type_error("transaction on non-database")), 1265 + }; 1266 + 1267 + let db_name = get_internal_str(ctx.gc, db_ref, IDB_DB_NAME_KEY) 1268 + .ok_or_else(|| RuntimeError::type_error("invalid database object"))?; 1269 + 1270 + // Parse store names argument (string or array of strings). 1271 + let _store_names: Vec<String> = match args.first() { 1272 + Some(Value::String(s)) => vec![s.clone()], 1273 + Some(Value::Object(r)) => { 1274 + let mut names = Vec::new(); 1275 + if let Some(HeapObject::Object(data)) = ctx.gc.get(*r) { 1276 + let len = data 1277 + .properties 1278 + .get("length") 1279 + .map(|p| p.value.to_number() as usize) 1280 + .unwrap_or(0); 1281 + for i in 0..len { 1282 + if let Some(prop) = data.properties.get(&i.to_string()) { 1283 + names.push(prop.value.to_js_string(ctx.gc)); 1284 + } 1285 + } 1286 + } 1287 + names 1288 + } 1289 + _ => { 1290 + return Err(RuntimeError::type_error( 1291 + "transaction requires store name(s)", 1292 + )) 1293 + } 1294 + }; 1295 + 1296 + let mode = args 1297 + .get(1) 1298 + .map(|v| v.to_js_string(ctx.gc)) 1299 + .unwrap_or_else(|| "readonly".to_string()); 1300 + 1301 + if mode != "readonly" && mode != "readwrite" { 1302 + return Err(RuntimeError::type_error( 1303 + "transaction mode must be 'readonly' or 'readwrite'", 1304 + )); 1305 + } 1306 + 1307 + // Verify the database exists. 1308 + { 1309 + let idb = bridge.indexeddb.borrow(); 1310 + if !idb.databases.contains_key(&db_name) { 1311 + return Err(RuntimeError { 1312 + kind: ErrorKind::Error, 1313 + message: "InvalidStateError: database not found".to_string(), 1314 + }); 1315 + } 1316 + } 1317 + 1318 + let tx_ref = create_idb_transaction_wrapper(ctx.gc, &db_name, &mode, db_ref, None); 1319 + 1320 + // Queue auto-commit (complete event) for the transaction. 1321 + queue_idb_event(PendingIdbEvent { 1322 + target: tx_ref, 1323 + kind: IdbEventKind::Complete, 1324 + }); 1325 + 1326 + Ok(Value::Object(tx_ref)) 1327 + } 1328 + 1329 + /// `database.close()` — close the database connection. 1330 + fn idb_db_close(_args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1331 + let db_ref = match &ctx.this { 1332 + Value::Object(r) => *r, 1333 + _ => return Err(RuntimeError::type_error("close on non-database")), 1334 + }; 1335 + set_builtin_prop(ctx.gc, db_ref, "__closed__", Value::Boolean(true)); 1336 + Ok(Value::Undefined) 1337 + } 1338 + 1339 + /// `transaction.objectStore(name)` — get an object store from a transaction. 1340 + fn idb_tx_object_store(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1341 + let bridge = ctx 1342 + .dom_bridge 1343 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1344 + 1345 + let tx_ref = match &ctx.this { 1346 + Value::Object(r) => *r, 1347 + _ => return Err(RuntimeError::type_error("objectStore on non-transaction")), 1348 + }; 1349 + 1350 + let db_name = get_internal_str(ctx.gc, tx_ref, IDB_DB_NAME_KEY) 1351 + .ok_or_else(|| RuntimeError::type_error("invalid transaction object"))?; 1352 + 1353 + let store_name = args 1354 + .first() 1355 + .map(|v| v.to_js_string(ctx.gc)) 1356 + .unwrap_or_default(); 1357 + 1358 + // Verify the store exists. 1359 + { 1360 + let idb = bridge.indexeddb.borrow(); 1361 + let db = idb.databases.get(&db_name).ok_or_else(|| RuntimeError { 1362 + kind: ErrorKind::Error, 1363 + message: "InvalidStateError: database not found".to_string(), 1364 + })?; 1365 + if !db.stores.contains_key(&store_name) { 1366 + return Err(RuntimeError { 1367 + kind: ErrorKind::Error, 1368 + message: format!("NotFoundError: object store '{}' not found", store_name), 1369 + }); 1370 + } 1371 + } 1372 + 1373 + let store_ref = create_idb_store_wrapper(ctx.gc, &db_name, &store_name, tx_ref, None); 1374 + Ok(Value::Object(store_ref)) 1375 + } 1376 + 1377 + /// `transaction.abort()` — abort the transaction. 1378 + fn idb_tx_abort(_args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1379 + let tx_ref = match &ctx.this { 1380 + Value::Object(r) => *r, 1381 + _ => return Err(RuntimeError::type_error("abort on non-transaction")), 1382 + }; 1383 + 1384 + // Remove any pending Complete event for this transaction and queue Abort instead. 1385 + PENDING_IDB_EVENTS.with(|q| { 1386 + let mut events = q.borrow_mut(); 1387 + events.retain(|e| !(e.target == tx_ref && matches!(e.kind, IdbEventKind::Complete))); 1388 + }); 1389 + 1390 + queue_idb_event(PendingIdbEvent { 1391 + target: tx_ref, 1392 + kind: IdbEventKind::Abort, 1393 + }); 1394 + 1395 + Ok(Value::Undefined) 1396 + } 1397 + 1398 + /// `objectStore.put(value, key?)` — insert or update a record. 1399 + fn idb_store_put(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1400 + let bridge = ctx 1401 + .dom_bridge 1402 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1403 + 1404 + let store_ref = match &ctx.this { 1405 + Value::Object(r) => *r, 1406 + _ => return Err(RuntimeError::type_error("put on non-objectStore")), 1407 + }; 1408 + 1409 + // Check transaction mode. 1410 + let tx_val = get_obj_prop(ctx.gc, store_ref, "transaction"); 1411 + if let Value::Object(tx_ref) = &tx_val { 1412 + let mode = get_internal_str(ctx.gc, *tx_ref, IDB_TX_MODE_KEY); 1413 + if mode.as_deref() == Some("readonly") { 1414 + return Err(RuntimeError { 1415 + kind: ErrorKind::Error, 1416 + message: "ReadOnlyError: cannot write in a readonly transaction".to_string(), 1417 + }); 1418 + } 1419 + } 1420 + 1421 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1422 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1423 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1424 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1425 + 1426 + let value = args.first().cloned().unwrap_or(Value::Undefined); 1427 + let idb_value = value_to_idb(ctx.gc, &value).map_err(|e| RuntimeError::type_error(&e))?; 1428 + 1429 + let explicit_key = args.get(1).and_then(|v| value_to_key(ctx.gc, v)); 1430 + 1431 + let mut idb = bridge.indexeddb.borrow_mut(); 1432 + let db = idb 1433 + .databases 1434 + .get_mut(&db_name) 1435 + .ok_or_else(|| RuntimeError::type_error("database not found"))?; 1436 + let store = db 1437 + .stores 1438 + .get_mut(&store_name) 1439 + .ok_or_else(|| RuntimeError::type_error("store not found"))?; 1440 + 1441 + let key = store 1442 + .extract_key(&idb_value, explicit_key) 1443 + .ok_or_else(|| RuntimeError { 1444 + kind: ErrorKind::Error, 1445 + message: "DataError: no key could be extracted".to_string(), 1446 + })?; 1447 + 1448 + // Check unique index constraints. 1449 + for index in store.indexes.values() { 1450 + if !store.check_unique_index(index, &idb_value, Some(&key)) { 1451 + return Err(RuntimeError { 1452 + kind: ErrorKind::Error, 1453 + message: format!("ConstraintError: unique index '{}' violated", index.name), 1454 + }); 1455 + } 1456 + } 1457 + 1458 + let result_key = store.put(key, idb_value); 1459 + drop(idb); 1460 + 1461 + // Create a request with the key as result. 1462 + let result_val = match &result_key { 1463 + IdbValue::Number(n) => Value::Number(*n), 1464 + IdbValue::String(s) => Value::String(s.clone()), 1465 + _ => Value::Undefined, 1466 + }; 1467 + let request_ref = create_idb_request(ctx.gc, None); 1468 + set_builtin_prop(ctx.gc, request_ref, "result", result_val); 1469 + set_builtin_prop( 1470 + ctx.gc, 1471 + request_ref, 1472 + "readyState", 1473 + Value::String("done".to_string()), 1474 + ); 1475 + 1476 + queue_idb_event(PendingIdbEvent { 1477 + target: request_ref, 1478 + kind: IdbEventKind::Success, 1479 + }); 1480 + 1481 + Ok(Value::Object(request_ref)) 1482 + } 1483 + 1484 + /// `objectStore.get(key)` — retrieve a record by key. 1485 + fn idb_store_get(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1486 + let bridge = ctx 1487 + .dom_bridge 1488 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1489 + 1490 + let store_ref = match &ctx.this { 1491 + Value::Object(r) => *r, 1492 + _ => return Err(RuntimeError::type_error("get on non-objectStore")), 1493 + }; 1494 + 1495 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1496 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1497 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1498 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1499 + 1500 + let key = args 1501 + .first() 1502 + .and_then(|v| value_to_key(ctx.gc, v)) 1503 + .ok_or_else(|| RuntimeError::type_error("get requires a valid key"))?; 1504 + 1505 + let idb = bridge.indexeddb.borrow(); 1506 + let result = idb 1507 + .databases 1508 + .get(&db_name) 1509 + .and_then(|db| db.stores.get(&store_name)) 1510 + .and_then(|store| store.get(&key)) 1511 + .map(|v| idb_to_value(ctx.gc, v)) 1512 + .unwrap_or(Value::Undefined); 1513 + drop(idb); 1514 + 1515 + let request_ref = create_idb_request(ctx.gc, None); 1516 + set_builtin_prop(ctx.gc, request_ref, "result", result); 1517 + set_builtin_prop( 1518 + ctx.gc, 1519 + request_ref, 1520 + "readyState", 1521 + Value::String("done".to_string()), 1522 + ); 1523 + 1524 + queue_idb_event(PendingIdbEvent { 1525 + target: request_ref, 1526 + kind: IdbEventKind::Success, 1527 + }); 1528 + 1529 + Ok(Value::Object(request_ref)) 1530 + } 1531 + 1532 + /// `objectStore.delete(key)` — delete a record by key. 1533 + fn idb_store_delete(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1534 + let bridge = ctx 1535 + .dom_bridge 1536 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1537 + 1538 + let store_ref = match &ctx.this { 1539 + Value::Object(r) => *r, 1540 + _ => return Err(RuntimeError::type_error("delete on non-objectStore")), 1541 + }; 1542 + 1543 + // Check transaction mode. 1544 + let tx_val = get_obj_prop(ctx.gc, store_ref, "transaction"); 1545 + if let Value::Object(tx_ref) = &tx_val { 1546 + let mode = get_internal_str(ctx.gc, *tx_ref, IDB_TX_MODE_KEY); 1547 + if mode.as_deref() == Some("readonly") { 1548 + return Err(RuntimeError { 1549 + kind: ErrorKind::Error, 1550 + message: "ReadOnlyError: cannot write in a readonly transaction".to_string(), 1551 + }); 1552 + } 1553 + } 1554 + 1555 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1556 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1557 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1558 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1559 + 1560 + let key = args 1561 + .first() 1562 + .and_then(|v| value_to_key(ctx.gc, v)) 1563 + .ok_or_else(|| RuntimeError::type_error("delete requires a valid key"))?; 1564 + 1565 + let mut idb = bridge.indexeddb.borrow_mut(); 1566 + if let Some(db) = idb.databases.get_mut(&db_name) { 1567 + if let Some(store) = db.stores.get_mut(&store_name) { 1568 + store.delete(&key); 1569 + } 1570 + } 1571 + drop(idb); 1572 + 1573 + let request_ref = create_idb_request(ctx.gc, None); 1574 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Undefined); 1575 + set_builtin_prop( 1576 + ctx.gc, 1577 + request_ref, 1578 + "readyState", 1579 + Value::String("done".to_string()), 1580 + ); 1581 + 1582 + queue_idb_event(PendingIdbEvent { 1583 + target: request_ref, 1584 + kind: IdbEventKind::Success, 1585 + }); 1586 + 1587 + Ok(Value::Object(request_ref)) 1588 + } 1589 + 1590 + /// `objectStore.clear()` — delete all records. 1591 + fn idb_store_clear(_args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1592 + let bridge = ctx 1593 + .dom_bridge 1594 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1595 + 1596 + let store_ref = match &ctx.this { 1597 + Value::Object(r) => *r, 1598 + _ => return Err(RuntimeError::type_error("clear on non-objectStore")), 1599 + }; 1600 + 1601 + // Check transaction mode. 1602 + let tx_val = get_obj_prop(ctx.gc, store_ref, "transaction"); 1603 + if let Value::Object(tx_ref) = &tx_val { 1604 + let mode = get_internal_str(ctx.gc, *tx_ref, IDB_TX_MODE_KEY); 1605 + if mode.as_deref() == Some("readonly") { 1606 + return Err(RuntimeError { 1607 + kind: ErrorKind::Error, 1608 + message: "ReadOnlyError: cannot write in a readonly transaction".to_string(), 1609 + }); 1610 + } 1611 + } 1612 + 1613 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1614 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1615 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1616 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1617 + 1618 + let mut idb = bridge.indexeddb.borrow_mut(); 1619 + if let Some(db) = idb.databases.get_mut(&db_name) { 1620 + if let Some(store) = db.stores.get_mut(&store_name) { 1621 + store.clear(); 1622 + } 1623 + } 1624 + drop(idb); 1625 + 1626 + let request_ref = create_idb_request(ctx.gc, None); 1627 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Undefined); 1628 + set_builtin_prop( 1629 + ctx.gc, 1630 + request_ref, 1631 + "readyState", 1632 + Value::String("done".to_string()), 1633 + ); 1634 + 1635 + queue_idb_event(PendingIdbEvent { 1636 + target: request_ref, 1637 + kind: IdbEventKind::Success, 1638 + }); 1639 + 1640 + Ok(Value::Object(request_ref)) 1641 + } 1642 + 1643 + /// `objectStore.count()` — return the number of records. 1644 + fn idb_store_count(_args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1645 + let bridge = ctx 1646 + .dom_bridge 1647 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1648 + 1649 + let store_ref = match &ctx.this { 1650 + Value::Object(r) => *r, 1651 + _ => return Err(RuntimeError::type_error("count on non-objectStore")), 1652 + }; 1653 + 1654 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1655 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1656 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1657 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1658 + 1659 + let idb = bridge.indexeddb.borrow(); 1660 + let count = idb 1661 + .databases 1662 + .get(&db_name) 1663 + .and_then(|db| db.stores.get(&store_name)) 1664 + .map(|store| store.count()) 1665 + .unwrap_or(0); 1666 + drop(idb); 1667 + 1668 + let request_ref = create_idb_request(ctx.gc, None); 1669 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Number(count as f64)); 1670 + set_builtin_prop( 1671 + ctx.gc, 1672 + request_ref, 1673 + "readyState", 1674 + Value::String("done".to_string()), 1675 + ); 1676 + 1677 + queue_idb_event(PendingIdbEvent { 1678 + target: request_ref, 1679 + kind: IdbEventKind::Success, 1680 + }); 1681 + 1682 + Ok(Value::Object(request_ref)) 1683 + } 1684 + 1685 + /// `objectStore.getAll()` — return all records. 1686 + fn idb_store_get_all(_args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1687 + let bridge = ctx 1688 + .dom_bridge 1689 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1690 + 1691 + let store_ref = match &ctx.this { 1692 + Value::Object(r) => *r, 1693 + _ => return Err(RuntimeError::type_error("getAll on non-objectStore")), 1694 + }; 1695 + 1696 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1697 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1698 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1699 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1700 + 1701 + let idb = bridge.indexeddb.borrow(); 1702 + let values: Vec<IdbValue> = idb 1703 + .databases 1704 + .get(&db_name) 1705 + .and_then(|db| db.stores.get(&store_name)) 1706 + .map(|store| store.get_all().into_iter().cloned().collect()) 1707 + .unwrap_or_default(); 1708 + drop(idb); 1709 + 1710 + // Convert to JS array. 1711 + let js_values: Vec<Value> = values.iter().map(|v| idb_to_value(ctx.gc, v)).collect(); 1712 + let mut obj = ObjectData::new(); 1713 + for (i, v) in js_values.into_iter().enumerate() { 1714 + obj.properties.insert(i.to_string(), Property::data(v)); 1715 + } 1716 + obj.properties.insert( 1717 + "length".to_string(), 1718 + Property { 1719 + value: Value::Number(values.len() as f64), 1720 + writable: true, 1721 + enumerable: false, 1722 + configurable: false, 1723 + }, 1724 + ); 1725 + let arr_ref = ctx.gc.alloc(HeapObject::Object(obj)); 1726 + 1727 + let request_ref = create_idb_request(ctx.gc, None); 1728 + set_builtin_prop(ctx.gc, request_ref, "result", Value::Object(arr_ref)); 1729 + set_builtin_prop( 1730 + ctx.gc, 1731 + request_ref, 1732 + "readyState", 1733 + Value::String("done".to_string()), 1734 + ); 1735 + 1736 + queue_idb_event(PendingIdbEvent { 1737 + target: request_ref, 1738 + kind: IdbEventKind::Success, 1739 + }); 1740 + 1741 + Ok(Value::Object(request_ref)) 1742 + } 1743 + 1744 + /// `objectStore.createIndex(name, keyPath, options?)` — create an index (upgrade only). 1745 + fn idb_store_create_index(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1746 + let bridge = ctx 1747 + .dom_bridge 1748 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1749 + 1750 + let store_ref = match &ctx.this { 1751 + Value::Object(r) => *r, 1752 + _ => return Err(RuntimeError::type_error("createIndex on non-objectStore")), 1753 + }; 1754 + 1755 + let db_name = get_internal_str(ctx.gc, store_ref, IDB_DB_NAME_KEY) 1756 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1757 + let store_name = get_internal_str(ctx.gc, store_ref, IDB_STORE_NAME_KEY) 1758 + .ok_or_else(|| RuntimeError::type_error("invalid store object"))?; 1759 + 1760 + let index_name = args 1761 + .first() 1762 + .map(|v| v.to_js_string(ctx.gc)) 1763 + .unwrap_or_default(); 1764 + if index_name.is_empty() { 1765 + return Err(RuntimeError::type_error("index name is required")); 1766 + } 1767 + 1768 + let key_path = args 1769 + .get(1) 1770 + .map(|v| v.to_js_string(ctx.gc)) 1771 + .unwrap_or_default(); 1772 + if key_path.is_empty() { 1773 + return Err(RuntimeError::type_error("keyPath is required")); 1774 + } 1775 + 1776 + let mut unique = false; 1777 + if let Some(Value::Object(opts_ref)) = args.get(2) { 1778 + if let Some(HeapObject::Object(opts)) = ctx.gc.get(*opts_ref) { 1779 + if let Some(prop) = opts.properties.get("unique") { 1780 + unique = prop.value.to_boolean(); 1781 + } 1782 + } 1783 + } 1784 + 1785 + { 1786 + let mut idb = bridge.indexeddb.borrow_mut(); 1787 + let db = idb 1788 + .databases 1789 + .get_mut(&db_name) 1790 + .ok_or_else(|| RuntimeError::type_error("database not found"))?; 1791 + let store = db 1792 + .stores 1793 + .get_mut(&store_name) 1794 + .ok_or_else(|| RuntimeError::type_error("store not found"))?; 1795 + if store.indexes.contains_key(&index_name) { 1796 + return Err(RuntimeError { 1797 + kind: ErrorKind::Error, 1798 + message: format!("ConstraintError: index '{}' already exists", index_name), 1799 + }); 1800 + } 1801 + store.indexes.insert( 1802 + index_name.clone(), 1803 + IndexDef { 1804 + name: index_name.clone(), 1805 + key_path, 1806 + unique, 1807 + }, 1808 + ); 1809 + } 1810 + 1811 + let idx_ref = create_idb_index_wrapper(ctx.gc, &db_name, &store_name, &index_name, None); 1812 + Ok(Value::Object(idx_ref)) 1813 + } 1814 + 1815 + /// `index.get(key)` — look up a record by indexed value. 1816 + fn idb_index_get(args: &[Value], ctx: &mut NativeContext) -> Result<Value, RuntimeError> { 1817 + let bridge = ctx 1818 + .dom_bridge 1819 + .ok_or_else(|| RuntimeError::type_error("no document attached"))?; 1820 + 1821 + let idx_ref = match &ctx.this { 1822 + Value::Object(r) => *r, 1823 + _ => return Err(RuntimeError::type_error("get on non-index")), 1824 + }; 1825 + 1826 + let db_name = get_internal_str(ctx.gc, idx_ref, IDB_DB_NAME_KEY) 1827 + .ok_or_else(|| RuntimeError::type_error("invalid index object"))?; 1828 + let store_name = get_internal_str(ctx.gc, idx_ref, IDB_STORE_NAME_KEY) 1829 + .ok_or_else(|| RuntimeError::type_error("invalid index object"))?; 1830 + let index_name = get_internal_str(ctx.gc, idx_ref, IDB_INDEX_NAME_KEY) 1831 + .ok_or_else(|| RuntimeError::type_error("invalid index object"))?; 1832 + 1833 + let key = args 1834 + .first() 1835 + .and_then(|v| value_to_key(ctx.gc, v)) 1836 + .ok_or_else(|| RuntimeError::type_error("get requires a valid key"))?; 1837 + 1838 + let idb = bridge.indexeddb.borrow(); 1839 + let result = idb 1840 + .databases 1841 + .get(&db_name) 1842 + .and_then(|db| db.stores.get(&store_name)) 1843 + .and_then(|store| store.index_get(&index_name, &key)) 1844 + .map(|v| idb_to_value(ctx.gc, v)) 1845 + .unwrap_or(Value::Undefined); 1846 + drop(idb); 1847 + 1848 + let request_ref = create_idb_request(ctx.gc, None); 1849 + set_builtin_prop(ctx.gc, request_ref, "result", result); 1850 + set_builtin_prop( 1851 + ctx.gc, 1852 + request_ref, 1853 + "readyState", 1854 + Value::String("done".to_string()), 1855 + ); 1856 + 1857 + queue_idb_event(PendingIdbEvent { 1858 + target: request_ref, 1859 + kind: IdbEventKind::Success, 1860 + }); 1861 + 1862 + Ok(Value::Object(request_ref)) 1863 + } 1864 + 1865 + // ── Initialization ────────────────────────────────────────────── 1866 + 1867 + /// Register the `indexedDB` global on the VM. 1868 + /// Called from `Vm::attach_document`. 1869 + pub fn init_indexeddb(vm: &mut Vm) { 1870 + let mut data = ObjectData::new(); 1871 + if let Some(proto) = vm.object_prototype { 1872 + data.prototype = Some(proto); 1873 + } 1874 + data.properties.insert( 1875 + IDB_TYPE_KEY.to_string(), 1876 + Property::builtin(Value::String("indexedDB".to_string())), 1877 + ); 1878 + 1879 + let idb_ref = vm.gc.alloc(HeapObject::Object(data)); 1880 + 1881 + let methods: &[NativeMethod] = &[("open", idb_open), ("deleteDatabase", idb_delete_database)]; 1882 + for &(name, callback) in methods { 1883 + let func = make_native(&mut vm.gc, name, callback); 1884 + set_builtin_prop(&mut vm.gc, idb_ref, name, Value::Function(func)); 1885 + } 1886 + 1887 + vm.set_global("indexedDB", Value::Object(idb_ref)); 1888 + } 1889 + 1890 + /// Drain pending IDB events, invoking callbacks on request/transaction objects. 1891 + /// Called by the VM event loop. 1892 + pub fn drain_idb_events(vm: &mut crate::vm::Vm) -> Result<(), RuntimeError> { 1893 + let events = take_pending_idb_events(); 1894 + for event in events { 1895 + let callback_name = match &event.kind { 1896 + IdbEventKind::UpgradeNeeded { .. } => "onupgradeneeded", 1897 + IdbEventKind::Success => "onsuccess", 1898 + IdbEventKind::Error(_) => "onerror", 1899 + IdbEventKind::Complete => "oncomplete", 1900 + IdbEventKind::Abort => "onabort", 1901 + }; 1902 + 1903 + // Look up the callback property on the target. 1904 + let callback = get_obj_prop(&vm.gc, event.target, callback_name); 1905 + 1906 + if let Value::Function(func_ref) = callback { 1907 + // Create event object. 1908 + let (old_v, new_v) = match &event.kind { 1909 + IdbEventKind::UpgradeNeeded { 1910 + old_version, 1911 + new_version, 1912 + } => (*old_version, *new_version), 1913 + _ => (0.0, 0.0), 1914 + }; 1915 + let evt_ref = create_idb_event(&mut vm.gc, callback_name, event.target, old_v, new_v); 1916 + let _ = vm.call_function(func_ref, &[Value::Object(evt_ref)]); 1917 + vm.drain_microtasks()?; 1918 + } 1919 + 1920 + // After upgradeneeded, clear the upgrade flag on the database. 1921 + if matches!(event.kind, IdbEventKind::UpgradeNeeded { .. }) { 1922 + let result = get_obj_prop(&vm.gc, event.target, "result"); 1923 + if let Value::Object(db_ref) = result { 1924 + set_builtin_prop(&mut vm.gc, db_ref, IDB_UPGRADING_KEY, Value::Boolean(false)); 1925 + // Update objectStoreNames on the database wrapper. 1926 + let db_name = get_internal_str(&vm.gc, db_ref, IDB_DB_NAME_KEY); 1927 + if let Some(db_name) = db_name { 1928 + if let Some(bridge) = &vm.dom_bridge { 1929 + let store_names: Vec<String> = bridge 1930 + .indexeddb 1931 + .borrow() 1932 + .databases 1933 + .get(&db_name) 1934 + .map(|db| db.stores.keys().cloned().collect()) 1935 + .unwrap_or_default(); 1936 + let names_ref = make_string_list(&mut vm.gc, &store_names); 1937 + set_builtin_prop( 1938 + &mut vm.gc, 1939 + db_ref, 1940 + "objectStoreNames", 1941 + Value::Object(names_ref), 1942 + ); 1943 + } 1944 + } 1945 + } 1946 + } 1947 + 1948 + // For success events on open requests, also set readyState. 1949 + if matches!(event.kind, IdbEventKind::Success) { 1950 + set_builtin_prop( 1951 + &mut vm.gc, 1952 + event.target, 1953 + "readyState", 1954 + Value::String("done".to_string()), 1955 + ); 1956 + } 1957 + } 1958 + Ok(()) 1959 + } 1960 + 1961 + // ── Tests ─────────────────────────────────────────────────────── 1962 + 1963 + #[cfg(test)] 1964 + mod tests { 1965 + use super::*; 1966 + use crate::compiler; 1967 + use crate::parser::Parser; 1968 + use std::cell::RefCell; 1969 + use std::rc::Rc; 1970 + 1971 + struct CapturedConsole { 1972 + messages: RefCell<Vec<String>>, 1973 + } 1974 + 1975 + impl CapturedConsole { 1976 + fn new() -> Self { 1977 + Self { 1978 + messages: RefCell::new(Vec::new()), 1979 + } 1980 + } 1981 + } 1982 + 1983 + impl ConsoleOutput for CapturedConsole { 1984 + fn log(&self, message: &str) { 1985 + self.messages.borrow_mut().push(message.to_string()); 1986 + } 1987 + fn error(&self, _message: &str) {} 1988 + fn warn(&self, _message: &str) {} 1989 + } 1990 + 1991 + struct RcConsole(Rc<CapturedConsole>); 1992 + 1993 + impl ConsoleOutput for RcConsole { 1994 + fn log(&self, message: &str) { 1995 + self.0.log(message); 1996 + } 1997 + fn error(&self, message: &str) { 1998 + self.0.error(message); 1999 + } 2000 + fn warn(&self, message: &str) { 2001 + self.0.warn(message); 2002 + } 2003 + } 2004 + 2005 + /// Execute JS with a document attached and pump the event loop. 2006 + fn eval_idb(source: &str) -> Vec<String> { 2007 + reset_idb_events(); 2008 + crate::timers::reset_timers(); 2009 + let console = Rc::new(CapturedConsole::new()); 2010 + let program = Parser::parse(source).expect("parse failed"); 2011 + let func = compiler::compile(&program).expect("compile failed"); 2012 + let mut vm = Vm::new(); 2013 + vm.set_console_output(Box::new(RcConsole(console.clone()))); 2014 + let doc = we_html::parse_html("<html><body></body></html>"); 2015 + vm.attach_document(doc); 2016 + vm.execute(&func).expect("execute failed"); 2017 + vm.run_event_loop(100).expect("event loop failed"); 2018 + let result = console.messages.borrow().clone(); 2019 + result 2020 + } 2021 + 2022 + // ── IdbValue tests ─────────────────────────────────────── 2023 + 2024 + #[test] 2025 + fn idb_value_key_cmp() { 2026 + let n1 = IdbValue::Number(1.0); 2027 + let n2 = IdbValue::Number(2.0); 2028 + let s1 = IdbValue::String("a".into()); 2029 + let s2 = IdbValue::String("b".into()); 2030 + 2031 + assert_eq!(n1.key_cmp(&n2), std::cmp::Ordering::Less); 2032 + assert_eq!(s1.key_cmp(&s2), std::cmp::Ordering::Less); 2033 + assert_eq!(n1.key_cmp(&s1), std::cmp::Ordering::Less); 2034 + assert_eq!(s1.key_cmp(&n1), std::cmp::Ordering::Greater); 2035 + } 2036 + 2037 + #[test] 2038 + fn idb_value_get_by_key_path() { 2039 + let obj = IdbValue::Object(vec![ 2040 + ("id".into(), IdbValue::Number(42.0)), 2041 + ( 2042 + "user".into(), 2043 + IdbValue::Object(vec![("name".into(), IdbValue::String("Alice".into()))]), 2044 + ), 2045 + ]); 2046 + assert_eq!(obj.get_by_key_path("id"), Some(IdbValue::Number(42.0))); 2047 + assert_eq!( 2048 + obj.get_by_key_path("user.name"), 2049 + Some(IdbValue::String("Alice".into())) 2050 + ); 2051 + assert_eq!(obj.get_by_key_path("missing"), None); 2052 + } 2053 + 2054 + // ── Serialization tests ────────────────────────────────── 2055 + 2056 + #[test] 2057 + fn idb_value_serialize_roundtrip() { 2058 + let values = vec![ 2059 + IdbValue::Undefined, 2060 + IdbValue::Null, 2061 + IdbValue::Boolean(true), 2062 + IdbValue::Boolean(false), 2063 + IdbValue::Number(3.14), 2064 + IdbValue::String("hello".into()), 2065 + IdbValue::Array(vec![IdbValue::Number(1.0), IdbValue::String("two".into())]), 2066 + IdbValue::Object(vec![("key".into(), IdbValue::Boolean(true))]), 2067 + ]; 2068 + for val in &values { 2069 + let mut buf = Vec::new(); 2070 + serialize_idb_value(&mut buf, val); 2071 + let mut pos = 0; 2072 + let roundtripped = deserialize_idb_value(&buf, &mut pos).unwrap(); 2073 + assert_eq!(val, &roundtripped); 2074 + } 2075 + } 2076 + 2077 + #[test] 2078 + fn indexed_db_state_serialize_roundtrip() { 2079 + let mut state = IndexedDbState::new(); 2080 + let mut db = DatabaseDef::new("testdb".into(), 2); 2081 + let mut store = ObjectStoreDef::new("items".into(), Some("id".into()), false); 2082 + store.records.push(( 2083 + IdbValue::Number(1.0), 2084 + IdbValue::Object(vec![ 2085 + ("id".into(), IdbValue::Number(1.0)), 2086 + ("name".into(), IdbValue::String("test".into())), 2087 + ]), 2088 + )); 2089 + store.indexes.insert( 2090 + "by_name".into(), 2091 + IndexDef { 2092 + name: "by_name".into(), 2093 + key_path: "name".into(), 2094 + unique: true, 2095 + }, 2096 + ); 2097 + db.stores.insert("items".into(), store); 2098 + state.databases.insert("testdb".into(), db); 2099 + 2100 + let bytes = state.serialize(); 2101 + let state2 = IndexedDbState::deserialize(&bytes).unwrap(); 2102 + assert_eq!(state2.databases.len(), 1); 2103 + let db2 = &state2.databases["testdb"]; 2104 + assert_eq!(db2.version, 2); 2105 + assert_eq!(db2.stores.len(), 1); 2106 + let store2 = &db2.stores["items"]; 2107 + assert_eq!(store2.records.len(), 1); 2108 + assert_eq!(store2.indexes.len(), 1); 2109 + assert!(store2.indexes["by_name"].unique); 2110 + } 2111 + 2112 + #[test] 2113 + fn indexed_db_state_empty_roundtrip() { 2114 + let state = IndexedDbState::new(); 2115 + let bytes = state.serialize(); 2116 + let state2 = IndexedDbState::deserialize(&bytes).unwrap(); 2117 + assert_eq!(state2.databases.len(), 0); 2118 + } 2119 + 2120 + // ── Object store CRUD tests ────────────────────────────── 2121 + 2122 + #[test] 2123 + fn object_store_put_get() { 2124 + let mut store = ObjectStoreDef::new("test".into(), Some("id".into()), false); 2125 + let val = IdbValue::Object(vec![ 2126 + ("id".into(), IdbValue::Number(1.0)), 2127 + ("name".into(), IdbValue::String("Alice".into())), 2128 + ]); 2129 + let key = store.extract_key(&val, None).unwrap(); 2130 + store.put(key.clone(), val.clone()); 2131 + assert_eq!(store.get(&key), Some(&val)); 2132 + assert_eq!(store.count(), 1); 2133 + } 2134 + 2135 + #[test] 2136 + fn object_store_put_overwrites() { 2137 + let mut store = ObjectStoreDef::new("test".into(), Some("id".into()), false); 2138 + let val1 = IdbValue::Object(vec![ 2139 + ("id".into(), IdbValue::Number(1.0)), 2140 + ("name".into(), IdbValue::String("Alice".into())), 2141 + ]); 2142 + let val2 = IdbValue::Object(vec![ 2143 + ("id".into(), IdbValue::Number(1.0)), 2144 + ("name".into(), IdbValue::String("Bob".into())), 2145 + ]); 2146 + store.put(IdbValue::Number(1.0), val1); 2147 + store.put(IdbValue::Number(1.0), val2.clone()); 2148 + assert_eq!(store.count(), 1); 2149 + assert_eq!(store.get(&IdbValue::Number(1.0)), Some(&val2)); 2150 + } 2151 + 2152 + #[test] 2153 + fn object_store_delete() { 2154 + let mut store = ObjectStoreDef::new("test".into(), None, true); 2155 + store.put(IdbValue::Number(1.0), IdbValue::String("a".into())); 2156 + store.put(IdbValue::Number(2.0), IdbValue::String("b".into())); 2157 + assert!(store.delete(&IdbValue::Number(1.0))); 2158 + assert_eq!(store.count(), 1); 2159 + assert!(!store.delete(&IdbValue::Number(1.0))); 2160 + } 2161 + 2162 + #[test] 2163 + fn object_store_clear() { 2164 + let mut store = ObjectStoreDef::new("test".into(), None, true); 2165 + store.put(IdbValue::Number(1.0), IdbValue::String("a".into())); 2166 + store.put(IdbValue::Number(2.0), IdbValue::String("b".into())); 2167 + store.clear(); 2168 + assert_eq!(store.count(), 0); 2169 + } 2170 + 2171 + #[test] 2172 + fn object_store_auto_increment() { 2173 + let mut store = ObjectStoreDef::new("test".into(), None, true); 2174 + let k1 = store 2175 + .extract_key(&IdbValue::String("a".into()), None) 2176 + .unwrap(); 2177 + assert_eq!(k1, IdbValue::Number(1.0)); 2178 + let k2 = store 2179 + .extract_key(&IdbValue::String("b".into()), None) 2180 + .unwrap(); 2181 + assert_eq!(k2, IdbValue::Number(2.0)); 2182 + } 2183 + 2184 + #[test] 2185 + fn object_store_get_all() { 2186 + let mut store = ObjectStoreDef::new("test".into(), None, true); 2187 + store.put(IdbValue::Number(1.0), IdbValue::String("a".into())); 2188 + store.put(IdbValue::Number(2.0), IdbValue::String("b".into())); 2189 + let all = store.get_all(); 2190 + assert_eq!(all.len(), 2); 2191 + } 2192 + 2193 + #[test] 2194 + fn object_store_index_get() { 2195 + let mut store = ObjectStoreDef::new("test".into(), Some("id".into()), false); 2196 + store.indexes.insert( 2197 + "by_name".into(), 2198 + IndexDef { 2199 + name: "by_name".into(), 2200 + key_path: "name".into(), 2201 + unique: false, 2202 + }, 2203 + ); 2204 + let val = IdbValue::Object(vec![ 2205 + ("id".into(), IdbValue::Number(1.0)), 2206 + ("name".into(), IdbValue::String("Alice".into())), 2207 + ]); 2208 + store.put(IdbValue::Number(1.0), val.clone()); 2209 + assert_eq!( 2210 + store.index_get("by_name", &IdbValue::String("Alice".into())), 2211 + Some(&val) 2212 + ); 2213 + assert_eq!( 2214 + store.index_get("by_name", &IdbValue::String("Bob".into())), 2215 + None 2216 + ); 2217 + } 2218 + 2219 + // ── JS integration tests ───────────────────────────────── 2220 + 2221 + #[test] 2222 + fn test_open_database() { 2223 + let logs = eval_idb( 2224 + r#" 2225 + var request = indexedDB.open("testdb", 1); 2226 + request.onupgradeneeded = function(e) { 2227 + console.log("upgrade:" + e.oldVersion + "->" + e.newVersion); 2228 + }; 2229 + request.onsuccess = function(e) { 2230 + var db = e.target.result; 2231 + console.log("opened:" + db.name + ":v" + db.version); 2232 + }; 2233 + "#, 2234 + ); 2235 + assert_eq!(logs, vec!["upgrade:0->1", "opened:testdb:v1"]); 2236 + } 2237 + 2238 + #[test] 2239 + fn test_create_object_store() { 2240 + let logs = eval_idb( 2241 + r#" 2242 + var request = indexedDB.open("testdb", 1); 2243 + request.onupgradeneeded = function(e) { 2244 + var db = e.target.result; 2245 + db.createObjectStore("items", { keyPath: "id" }); 2246 + console.log("store created"); 2247 + }; 2248 + request.onsuccess = function(e) { 2249 + var db = e.target.result; 2250 + console.log("stores:" + db.objectStoreNames.length); 2251 + }; 2252 + "#, 2253 + ); 2254 + assert_eq!(logs, vec!["store created", "stores:1"]); 2255 + } 2256 + 2257 + #[test] 2258 + fn test_put_and_get() { 2259 + let logs = eval_idb( 2260 + r#" 2261 + var request = indexedDB.open("testdb", 1); 2262 + request.onupgradeneeded = function(e) { 2263 + var db = e.target.result; 2264 + db.createObjectStore("items", { keyPath: "id" }); 2265 + }; 2266 + request.onsuccess = function(e) { 2267 + var db = e.target.result; 2268 + var tx = db.transaction(["items"], "readwrite"); 2269 + var store = tx.objectStore("items"); 2270 + store.put({ id: 1, name: "Alice" }); 2271 + var getReq = store.get(1); 2272 + getReq.onsuccess = function(e) { 2273 + var result = e.target.result; 2274 + console.log("got:" + result.name); 2275 + }; 2276 + }; 2277 + "#, 2278 + ); 2279 + assert_eq!(logs, vec!["got:Alice"]); 2280 + } 2281 + 2282 + #[test] 2283 + fn test_delete_record() { 2284 + let logs = eval_idb( 2285 + r#" 2286 + var request = indexedDB.open("testdb", 1); 2287 + request.onupgradeneeded = function(e) { 2288 + var db = e.target.result; 2289 + db.createObjectStore("items", { keyPath: "id" }); 2290 + }; 2291 + request.onsuccess = function(e) { 2292 + var db = e.target.result; 2293 + var tx = db.transaction(["items"], "readwrite"); 2294 + var store = tx.objectStore("items"); 2295 + store.put({ id: 1, name: "Alice" }); 2296 + store["delete"](1); 2297 + var countReq = store.count(); 2298 + countReq.onsuccess = function(e) { 2299 + console.log("count:" + e.target.result); 2300 + }; 2301 + }; 2302 + "#, 2303 + ); 2304 + assert_eq!(logs, vec!["count:0"]); 2305 + } 2306 + 2307 + #[test] 2308 + fn test_clear_store() { 2309 + let logs = eval_idb( 2310 + r#" 2311 + var request = indexedDB.open("testdb", 1); 2312 + request.onupgradeneeded = function(e) { 2313 + var db = e.target.result; 2314 + db.createObjectStore("items", { keyPath: "id" }); 2315 + }; 2316 + request.onsuccess = function(e) { 2317 + var db = e.target.result; 2318 + var tx = db.transaction(["items"], "readwrite"); 2319 + var store = tx.objectStore("items"); 2320 + store.put({ id: 1, name: "Alice" }); 2321 + store.put({ id: 2, name: "Bob" }); 2322 + store.clear(); 2323 + var countReq = store.count(); 2324 + countReq.onsuccess = function(e) { 2325 + console.log("count:" + e.target.result); 2326 + }; 2327 + }; 2328 + "#, 2329 + ); 2330 + assert_eq!(logs, vec!["count:0"]); 2331 + } 2332 + 2333 + #[test] 2334 + fn test_get_all() { 2335 + let logs = eval_idb( 2336 + r#" 2337 + var request = indexedDB.open("testdb", 1); 2338 + request.onupgradeneeded = function(e) { 2339 + var db = e.target.result; 2340 + db.createObjectStore("items", { keyPath: "id" }); 2341 + }; 2342 + request.onsuccess = function(e) { 2343 + var db = e.target.result; 2344 + var tx = db.transaction(["items"], "readwrite"); 2345 + var store = tx.objectStore("items"); 2346 + store.put({ id: 1, name: "Alice" }); 2347 + store.put({ id: 2, name: "Bob" }); 2348 + var allReq = store.getAll(); 2349 + allReq.onsuccess = function(e) { 2350 + var results = e.target.result; 2351 + console.log("count:" + results.length); 2352 + console.log("first:" + results[0].name); 2353 + console.log("second:" + results[1].name); 2354 + }; 2355 + }; 2356 + "#, 2357 + ); 2358 + assert_eq!(logs, vec!["count:2", "first:Alice", "second:Bob"]); 2359 + } 2360 + 2361 + #[test] 2362 + fn test_auto_increment() { 2363 + let logs = eval_idb( 2364 + r#" 2365 + var request = indexedDB.open("testdb", 1); 2366 + request.onupgradeneeded = function(e) { 2367 + var db = e.target.result; 2368 + db.createObjectStore("items", { autoIncrement: true }); 2369 + }; 2370 + request.onsuccess = function(e) { 2371 + var db = e.target.result; 2372 + var tx = db.transaction(["items"], "readwrite"); 2373 + var store = tx.objectStore("items"); 2374 + var r1 = store.put("hello"); 2375 + r1.onsuccess = function(e) { 2376 + console.log("key1:" + e.target.result); 2377 + }; 2378 + var r2 = store.put("world"); 2379 + r2.onsuccess = function(e) { 2380 + console.log("key2:" + e.target.result); 2381 + }; 2382 + }; 2383 + "#, 2384 + ); 2385 + assert_eq!(logs, vec!["key1:1", "key2:2"]); 2386 + } 2387 + 2388 + #[test] 2389 + fn test_readonly_transaction_rejects_writes() { 2390 + let logs = eval_idb( 2391 + r#" 2392 + var request = indexedDB.open("testdb", 1); 2393 + request.onupgradeneeded = function(e) { 2394 + var db = e.target.result; 2395 + db.createObjectStore("items", { keyPath: "id" }); 2396 + }; 2397 + request.onsuccess = function(e) { 2398 + var db = e.target.result; 2399 + var tx = db.transaction(["items"], "readonly"); 2400 + var store = tx.objectStore("items"); 2401 + try { 2402 + store.put({ id: 1, name: "Alice" }); 2403 + console.log("error: should have thrown"); 2404 + } catch (err) { 2405 + console.log("caught:ReadOnlyError"); 2406 + } 2407 + }; 2408 + "#, 2409 + ); 2410 + assert_eq!(logs, vec!["caught:ReadOnlyError"]); 2411 + } 2412 + 2413 + #[test] 2414 + fn test_transaction_complete_event() { 2415 + let logs = eval_idb( 2416 + r#" 2417 + var request = indexedDB.open("testdb", 1); 2418 + request.onupgradeneeded = function(e) { 2419 + var db = e.target.result; 2420 + db.createObjectStore("items", { keyPath: "id" }); 2421 + }; 2422 + request.onsuccess = function(e) { 2423 + var db = e.target.result; 2424 + var tx = db.transaction(["items"], "readwrite"); 2425 + tx.oncomplete = function() { 2426 + console.log("tx complete"); 2427 + }; 2428 + var store = tx.objectStore("items"); 2429 + store.put({ id: 1, name: "Alice" }); 2430 + }; 2431 + "#, 2432 + ); 2433 + assert_eq!(logs, vec!["tx complete"]); 2434 + } 2435 + 2436 + #[test] 2437 + fn test_transaction_abort() { 2438 + let logs = eval_idb( 2439 + r#" 2440 + var request = indexedDB.open("testdb", 1); 2441 + request.onupgradeneeded = function(e) { 2442 + var db = e.target.result; 2443 + db.createObjectStore("items", { keyPath: "id" }); 2444 + }; 2445 + request.onsuccess = function(e) { 2446 + var db = e.target.result; 2447 + var tx = db.transaction(["items"], "readwrite"); 2448 + tx.oncomplete = function() { 2449 + console.log("complete"); 2450 + }; 2451 + tx.onabort = function() { 2452 + console.log("aborted"); 2453 + }; 2454 + tx.abort(); 2455 + }; 2456 + "#, 2457 + ); 2458 + assert_eq!(logs, vec!["aborted"]); 2459 + } 2460 + 2461 + #[test] 2462 + fn test_delete_database() { 2463 + let logs = eval_idb( 2464 + r#" 2465 + var openReq = indexedDB.open("todelete", 1); 2466 + openReq.onupgradeneeded = function(e) { 2467 + e.target.result.createObjectStore("s"); 2468 + }; 2469 + openReq.onsuccess = function(e) { 2470 + e.target.result.close(); 2471 + var delReq = indexedDB.deleteDatabase("todelete"); 2472 + delReq.onsuccess = function() { 2473 + console.log("deleted"); 2474 + // Reopen — should trigger upgrade from version 0. 2475 + var reopen = indexedDB.open("todelete", 1); 2476 + reopen.onupgradeneeded = function(e2) { 2477 + console.log("upgrade after delete:" + e2.oldVersion); 2478 + }; 2479 + reopen.onsuccess = function() { 2480 + console.log("reopened"); 2481 + }; 2482 + }; 2483 + }; 2484 + "#, 2485 + ); 2486 + assert_eq!(logs, vec!["deleted", "upgrade after delete:0", "reopened"]); 2487 + } 2488 + 2489 + #[test] 2490 + fn test_index_get() { 2491 + let logs = eval_idb( 2492 + r#" 2493 + var request = indexedDB.open("testdb", 1); 2494 + request.onupgradeneeded = function(e) { 2495 + var db = e.target.result; 2496 + var store = db.createObjectStore("people", { keyPath: "id" }); 2497 + store.createIndex("by_name", "name", { unique: false }); 2498 + }; 2499 + request.onsuccess = function(e) { 2500 + var db = e.target.result; 2501 + var tx = db.transaction(["people"], "readwrite"); 2502 + var store = tx.objectStore("people"); 2503 + store.put({ id: 1, name: "Alice", age: 30 }); 2504 + store.put({ id: 2, name: "Bob", age: 25 }); 2505 + 2506 + var idx = store.createIndex ? null : null; 2507 + // Access existing index from the store. 2508 + // For now, create a new index wrapper directly. 2509 + }; 2510 + "#, 2511 + ); 2512 + // This test just verifies no crashes; index.get is tested below. 2513 + let _ = logs; 2514 + } 2515 + 2516 + #[test] 2517 + fn test_version_upgrade() { 2518 + let logs = eval_idb( 2519 + r#" 2520 + var r1 = indexedDB.open("upgradedb", 1); 2521 + r1.onupgradeneeded = function(e) { 2522 + console.log("v1 upgrade:" + e.oldVersion + "->" + e.newVersion); 2523 + e.target.result.createObjectStore("store1"); 2524 + }; 2525 + r1.onsuccess = function(e) { 2526 + console.log("v1 opened"); 2527 + e.target.result.close(); 2528 + 2529 + var r2 = indexedDB.open("upgradedb", 2); 2530 + r2.onupgradeneeded = function(e2) { 2531 + console.log("v2 upgrade:" + e2.oldVersion + "->" + e2.newVersion); 2532 + e2.target.result.createObjectStore("store2"); 2533 + }; 2534 + r2.onsuccess = function(e2) { 2535 + var db = e2.target.result; 2536 + console.log("v2 stores:" + db.objectStoreNames.length); 2537 + }; 2538 + }; 2539 + "#, 2540 + ); 2541 + assert_eq!( 2542 + logs, 2543 + vec![ 2544 + "v1 upgrade:0->1", 2545 + "v1 opened", 2546 + "v2 upgrade:1->2", 2547 + "v2 stores:2" 2548 + ] 2549 + ); 2550 + } 2551 + 2552 + #[test] 2553 + fn test_explicit_key() { 2554 + let logs = eval_idb( 2555 + r#" 2556 + var r = indexedDB.open("keydb", 1); 2557 + r.onupgradeneeded = function(e) { 2558 + e.target.result.createObjectStore("data"); 2559 + }; 2560 + r.onsuccess = function(e) { 2561 + var db = e.target.result; 2562 + var tx = db.transaction(["data"], "readwrite"); 2563 + var store = tx.objectStore("data"); 2564 + store.put("hello", "mykey"); 2565 + var g = store.get("mykey"); 2566 + g.onsuccess = function(e) { 2567 + console.log("val:" + e.target.result); 2568 + }; 2569 + }; 2570 + "#, 2571 + ); 2572 + assert_eq!(logs, vec!["val:hello"]); 2573 + } 2574 + 2575 + // ── Value conversion tests ─────────────────────────────── 2576 + 2577 + #[test] 2578 + fn value_to_idb_primitives() { 2579 + let gc = &mut Gc::new(); 2580 + assert_eq!( 2581 + value_to_idb(gc, &Value::Undefined).unwrap(), 2582 + IdbValue::Undefined 2583 + ); 2584 + assert_eq!(value_to_idb(gc, &Value::Null).unwrap(), IdbValue::Null); 2585 + assert_eq!( 2586 + value_to_idb(gc, &Value::Boolean(true)).unwrap(), 2587 + IdbValue::Boolean(true) 2588 + ); 2589 + assert_eq!( 2590 + value_to_idb(gc, &Value::Number(42.0)).unwrap(), 2591 + IdbValue::Number(42.0) 2592 + ); 2593 + assert_eq!( 2594 + value_to_idb(gc, &Value::String("hi".into())).unwrap(), 2595 + IdbValue::String("hi".into()) 2596 + ); 2597 + } 2598 + 2599 + #[test] 2600 + fn value_to_idb_object_roundtrip() { 2601 + let gc = &mut Gc::new(); 2602 + let mut obj = ObjectData::new(); 2603 + obj.properties.insert( 2604 + "name".to_string(), 2605 + Property::data(Value::String("test".into())), 2606 + ); 2607 + obj.properties 2608 + .insert("count".to_string(), Property::data(Value::Number(5.0))); 2609 + let obj_ref = gc.alloc(HeapObject::Object(obj)); 2610 + 2611 + let idb_val = value_to_idb(gc, &Value::Object(obj_ref)).unwrap(); 2612 + let js_val = idb_to_value(gc, &idb_val); 2613 + 2614 + match js_val { 2615 + Value::Object(r) => { 2616 + if let Some(HeapObject::Object(data)) = gc.get(r) { 2617 + assert_eq!( 2618 + data.properties.get("name").unwrap().value.to_js_string(gc), 2619 + "test" 2620 + ); 2621 + assert_eq!(data.properties.get("count").unwrap().value.to_number(), 5.0); 2622 + } else { 2623 + panic!("expected object"); 2624 + } 2625 + } 2626 + _ => panic!("expected object"), 2627 + } 2628 + } 2629 + }

+1

crates/js/src/lib.rs

··· 7 7 pub mod dom_bridge; 8 8 pub mod fetch; 9 9 pub mod gc; 10 + pub mod indexeddb; 10 11 pub mod lexer; 11 12 pub mod parser; 12 13 pub mod regex;

+36 -12

crates/js/src/vm.rs

··· 248 248 pub local_storage: RefCell<crate::storage::StorageArea>, 249 249 /// sessionStorage area for the current browsing context. 250 250 pub session_storage: RefCell<crate::storage::StorageArea>, 251 + /// IndexedDB state for the current origin. 252 + pub indexeddb: RefCell<crate::indexeddb::IndexedDbState>, 251 253 } 252 254 253 255 /// Context passed to native functions, providing GC access and `this` binding. ··· 856 858 document_url: RefCell::new(None), 857 859 local_storage: RefCell::new(crate::storage::StorageArea::new()), 858 860 session_storage: RefCell::new(crate::storage::StorageArea::new()), 861 + indexeddb: RefCell::new(crate::indexeddb::IndexedDbState::new()), 859 862 }); 860 863 self.dom_bridge = Some(bridge); 861 864 crate::dom_bridge::init_document_object(self); 862 865 crate::dom_bridge::init_event_system(self); 863 866 crate::dom_bridge::init_storage_objects(self); 867 + crate::indexeddb::init_indexeddb(self); 864 868 } 865 869 866 870 /// Set the document origin for Same-Origin Policy enforcement. ··· 924 928 bridge 925 929 .session_storage 926 930 .replace(crate::storage::StorageArea::new()) 931 + }) 932 + } 933 + 934 + /// Set the IndexedDB state (typically loaded from disk by the browser). 935 + pub fn set_indexeddb(&mut self, state: crate::indexeddb::IndexedDbState) { 936 + if let Some(bridge) = &self.dom_bridge { 937 + *bridge.indexeddb.borrow_mut() = state; 938 + } 939 + } 940 + 941 + /// Take the IndexedDB state from the DOM bridge (to persist to disk). 942 + pub fn take_indexeddb(&mut self) -> Option<crate::indexeddb::IndexedDbState> { 943 + self.dom_bridge.as_ref().map(|bridge| { 944 + bridge 945 + .indexeddb 946 + .replace(crate::indexeddb::IndexedDbState::new()) 927 947 }) 928 948 } 929 949 ··· 1208 1228 1209 1229 /// Drain the microtask queue. Called after execute() and recursively 1210 1230 /// until no more microtasks are pending. 1211 - fn drain_microtasks(&mut self) -> Result<(), RuntimeError> { 1231 + pub(crate) fn drain_microtasks(&mut self) -> Result<(), RuntimeError> { 1212 1232 loop { 1213 1233 let tasks = crate::builtins::take_microtasks(); 1214 1234 if tasks.is_empty() { ··· 1398 1418 Ok(()) 1399 1419 } 1400 1420 1401 - /// Pump the event loop: drain due timers, completed fetches, and microtasks. 1402 - /// 1403 - /// Call this from tests or the platform event loop to fire any pending 1404 - /// timers whose delay has elapsed. Each timer callback is followed by 1405 - /// a microtask drain. 1421 + /// Pump the event loop: drain due timers, completed fetches, IDB events, 1422 + /// and microtasks. 1406 1423 pub fn pump_event_loop(&mut self) -> Result<(), RuntimeError> { 1407 1424 self.drain_due_timers()?; 1408 - self.drain_completed_fetches() 1425 + self.drain_completed_fetches()?; 1426 + crate::indexeddb::drain_idb_events(self) 1409 1427 } 1410 1428 1411 - /// Run the event loop until all pending timers and fetches have completed. 1412 - /// Useful in tests to deterministically execute all scheduled work. 1413 - /// `max_iterations` caps the loop to prevent infinite loops with 1414 - /// recurring intervals; pass 0 for unlimited. 1429 + /// Run the event loop until all pending timers, fetches, and IDB events 1430 + /// have completed. Useful in tests to deterministically execute all 1431 + /// scheduled work. `max_iterations` caps the loop to prevent infinite 1432 + /// loops with recurring intervals; pass 0 for unlimited. 1415 1433 pub fn run_event_loop(&mut self, max_iterations: usize) -> Result<(), RuntimeError> { 1416 1434 let mut iterations = 0; 1417 - while crate::timers::has_pending_timers() || crate::fetch::has_pending_fetches() { 1435 + while crate::timers::has_pending_timers() 1436 + || crate::fetch::has_pending_fetches() 1437 + || crate::indexeddb::has_pending_idb_events() 1438 + { 1418 1439 if max_iterations > 0 && iterations >= max_iterations { 1419 1440 break; 1420 1441 } 1421 1442 self.drain_due_timers()?; 1422 1443 self.drain_completed_fetches()?; 1444 + crate::indexeddb::drain_idb_events(self)?; 1423 1445 iterations += 1; 1424 1446 // If work is still pending, sleep briefly to avoid spinning. 1425 1447 if crate::timers::has_pending_timers() || crate::fetch::has_pending_fetches() { ··· 2251 2273 roots.extend(crate::timers::timer_gc_roots()); 2252 2274 // Pending fetch promises must be GC roots. 2253 2275 roots.extend(crate::fetch::fetch_gc_roots()); 2276 + // Pending IndexedDB event targets must be GC roots. 2277 + roots.extend(crate::indexeddb::idb_gc_roots()); 2254 2278 roots 2255 2279 } 2256 2280

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