1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // The infrastructure used for (localized) message reporting in V8. 6 // 7 // Note: there's a big unresolved issue about ownership of the data 8 // structures used by this framework. 9 10 #ifndef V8_MESSAGES_H_ 11 #define V8_MESSAGES_H_ 12 13 #include <memory> 14 15 #include "src/handles.h" 16 17 namespace v8 { 18 namespace internal { 19 namespace wasm { 20 class WasmCode; 21 } 22 23 // Forward declarations. 24 class AbstractCode; 25 class FrameArray; 26 class JSMessageObject; 27 class LookupIterator; 28 class SharedFunctionInfo; 29 class SourceInfo; 30 class WasmInstanceObject; 31 32 class MessageLocation { 33 public: 34 MessageLocation(Handle<Script> script, int start_pos, int end_pos); 35 MessageLocation(Handle<Script> script, int start_pos, int end_pos, 36 Handle<SharedFunctionInfo> shared); 37 MessageLocation(); 38 script()39 Handle<Script> script() const { return script_; } start_pos()40 int start_pos() const { return start_pos_; } end_pos()41 int end_pos() const { return end_pos_; } shared()42 Handle<SharedFunctionInfo> shared() const { return shared_; } 43 44 private: 45 Handle<Script> script_; 46 int start_pos_; 47 int end_pos_; 48 Handle<SharedFunctionInfo> shared_; 49 }; 50 51 class StackFrameBase { 52 public: ~StackFrameBase()53 virtual ~StackFrameBase() {} 54 55 virtual Handle<Object> GetReceiver() const = 0; 56 virtual Handle<Object> GetFunction() const = 0; 57 58 virtual Handle<Object> GetFileName() = 0; 59 virtual Handle<Object> GetFunctionName() = 0; 60 virtual Handle<Object> GetScriptNameOrSourceUrl() = 0; 61 virtual Handle<Object> GetMethodName() = 0; 62 virtual Handle<Object> GetTypeName() = 0; 63 virtual Handle<Object> GetEvalOrigin(); 64 65 virtual int GetPosition() const = 0; 66 // Return 1-based line number, including line offset. 67 virtual int GetLineNumber() = 0; 68 // Return 1-based column number, including column offset if first line. 69 virtual int GetColumnNumber() = 0; 70 71 virtual bool IsNative() = 0; 72 virtual bool IsToplevel() = 0; 73 virtual bool IsEval(); 74 virtual bool IsConstructor() = 0; 75 virtual bool IsStrict() const = 0; 76 77 virtual MaybeHandle<String> ToString() = 0; 78 79 protected: StackFrameBase()80 StackFrameBase() {} StackFrameBase(Isolate * isolate)81 explicit StackFrameBase(Isolate* isolate) : isolate_(isolate) {} 82 Isolate* isolate_; 83 84 private: 85 virtual bool HasScript() const = 0; 86 virtual Handle<Script> GetScript() const = 0; 87 }; 88 89 class JSStackFrame : public StackFrameBase { 90 public: 91 JSStackFrame(Isolate* isolate, Handle<Object> receiver, 92 Handle<JSFunction> function, Handle<AbstractCode> code, 93 int offset); ~JSStackFrame()94 virtual ~JSStackFrame() {} 95 GetReceiver()96 Handle<Object> GetReceiver() const override { return receiver_; } 97 Handle<Object> GetFunction() const override; 98 99 Handle<Object> GetFileName() override; 100 Handle<Object> GetFunctionName() override; 101 Handle<Object> GetScriptNameOrSourceUrl() override; 102 Handle<Object> GetMethodName() override; 103 Handle<Object> GetTypeName() override; 104 105 int GetPosition() const override; 106 int GetLineNumber() override; 107 int GetColumnNumber() override; 108 109 bool IsNative() override; 110 bool IsToplevel() override; IsConstructor()111 bool IsConstructor() override { return is_constructor_; } IsStrict()112 bool IsStrict() const override { return is_strict_; } 113 114 MaybeHandle<String> ToString() override; 115 116 private: 117 JSStackFrame(); 118 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 119 120 bool HasScript() const override; 121 Handle<Script> GetScript() const override; 122 123 Handle<Object> receiver_; 124 Handle<JSFunction> function_; 125 Handle<AbstractCode> code_; 126 int offset_; 127 128 bool is_constructor_; 129 bool is_strict_; 130 131 friend class FrameArrayIterator; 132 }; 133 134 class WasmStackFrame : public StackFrameBase { 135 public: ~WasmStackFrame()136 virtual ~WasmStackFrame() {} 137 138 Handle<Object> GetReceiver() const override; 139 Handle<Object> GetFunction() const override; 140 GetFileName()141 Handle<Object> GetFileName() override { return Null(); } 142 Handle<Object> GetFunctionName() override; GetScriptNameOrSourceUrl()143 Handle<Object> GetScriptNameOrSourceUrl() override { return Null(); } GetMethodName()144 Handle<Object> GetMethodName() override { return Null(); } GetTypeName()145 Handle<Object> GetTypeName() override { return Null(); } 146 147 int GetPosition() const override; GetLineNumber()148 int GetLineNumber() override { return wasm_func_index_; } GetColumnNumber()149 int GetColumnNumber() override { return -1; } 150 IsNative()151 bool IsNative() override { return false; } IsToplevel()152 bool IsToplevel() override { return false; } IsConstructor()153 bool IsConstructor() override { return false; } IsStrict()154 bool IsStrict() const override { return false; } IsInterpreted()155 bool IsInterpreted() const { return code_ == nullptr; } 156 157 MaybeHandle<String> ToString() override; 158 159 protected: 160 Handle<Object> Null() const; 161 162 bool HasScript() const override; 163 Handle<Script> GetScript() const override; 164 165 Handle<WasmInstanceObject> wasm_instance_; 166 uint32_t wasm_func_index_; 167 wasm::WasmCode* code_; // null for interpreted frames. 168 int offset_; 169 170 private: 171 WasmStackFrame(); 172 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 173 174 friend class FrameArrayIterator; 175 friend class AsmJsWasmStackFrame; 176 }; 177 178 class AsmJsWasmStackFrame : public WasmStackFrame { 179 public: ~AsmJsWasmStackFrame()180 virtual ~AsmJsWasmStackFrame() {} 181 182 Handle<Object> GetReceiver() const override; 183 Handle<Object> GetFunction() const override; 184 185 Handle<Object> GetFileName() override; 186 Handle<Object> GetScriptNameOrSourceUrl() override; 187 188 int GetPosition() const override; 189 int GetLineNumber() override; 190 int GetColumnNumber() override; 191 192 MaybeHandle<String> ToString() override; 193 194 private: 195 friend class FrameArrayIterator; 196 AsmJsWasmStackFrame(); 197 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 198 199 bool is_at_number_conversion_; 200 }; 201 202 class FrameArrayIterator { 203 public: 204 FrameArrayIterator(Isolate* isolate, Handle<FrameArray> array, 205 int frame_ix = 0); 206 207 StackFrameBase* Frame(); 208 209 bool HasNext() const; 210 void Next(); 211 212 private: 213 Isolate* isolate_; 214 215 Handle<FrameArray> array_; 216 int next_frame_ix_; 217 218 WasmStackFrame wasm_frame_; 219 AsmJsWasmStackFrame asm_wasm_frame_; 220 JSStackFrame js_frame_; 221 }; 222 223 // Determines how stack trace collection skips frames. 224 enum FrameSkipMode { 225 // Unconditionally skips the first frame. Used e.g. when the Error constructor 226 // is called, in which case the first frame is always a BUILTIN_EXIT frame. 227 SKIP_FIRST, 228 // Skip all frames until a specified caller function is seen. 229 SKIP_UNTIL_SEEN, 230 SKIP_NONE, 231 }; 232 233 class ErrorUtils : public AllStatic { 234 public: 235 static MaybeHandle<Object> Construct( 236 Isolate* isolate, Handle<JSFunction> target, Handle<Object> new_target, 237 Handle<Object> message, FrameSkipMode mode, Handle<Object> caller, 238 bool suppress_detailed_trace); 239 240 static MaybeHandle<String> ToString(Isolate* isolate, Handle<Object> recv); 241 242 static MaybeHandle<Object> MakeGenericError( 243 Isolate* isolate, Handle<JSFunction> constructor, int template_index, 244 Handle<Object> arg0, Handle<Object> arg1, Handle<Object> arg2, 245 FrameSkipMode mode); 246 247 // Formats a textual stack trace from the given structured stack trace. 248 // Note that this can call arbitrary JS code through Error.prepareStackTrace. 249 static MaybeHandle<Object> FormatStackTrace(Isolate* isolate, 250 Handle<JSObject> error, 251 Handle<Object> stack_trace); 252 }; 253 254 #define MESSAGE_TEMPLATES(T) \ 255 /* Error */ \ 256 T(None, "") \ 257 T(CyclicProto, "Cyclic __proto__ value") \ 258 T(Debugger, "Debugger: %") \ 259 T(DebuggerLoading, "Error loading debugger") \ 260 T(DefaultOptionsMissing, "Internal % error. Default options are missing.") \ 261 T(DeletePrivateField, "Private fields can not be deleted") \ 262 T(UncaughtException, "Uncaught %") \ 263 T(Unsupported, "Not supported") \ 264 T(WrongServiceType, "Internal error, wrong service type: %") \ 265 T(WrongValueType, "Internal error. Wrong value type.") \ 266 T(IcuError, "Internal error. Icu error.") \ 267 /* TypeError */ \ 268 T(ApplyNonFunction, \ 269 "Function.prototype.apply was called on %, which is a % and not a " \ 270 "function") \ 271 T(ArgumentsDisallowedInInitializer, \ 272 "'arguments' is not allowed in class field initializer") \ 273 T(ArrayBufferTooShort, \ 274 "Derived ArrayBuffer constructor created a buffer which was too small") \ 275 T(ArrayBufferSpeciesThis, \ 276 "ArrayBuffer subclass returned this from species constructor") \ 277 T(ArrayItemNotType, "array %[%] is not type %") \ 278 T(AwaitNotInAsyncFunction, "await is only valid in async function") \ 279 T(AtomicsWaitNotAllowed, "Atomics.wait cannot be called in this context") \ 280 T(BadSortComparisonFunction, \ 281 "The comparison function must be either a function or undefined") \ 282 T(BigIntFromNumber, \ 283 "The number % cannot be converted to a BigInt because it is not an " \ 284 "integer") \ 285 T(BigIntFromObject, "Cannot convert % to a BigInt") \ 286 T(BigIntMixedTypes, \ 287 "Cannot mix BigInt and other types, use explicit conversions") \ 288 T(BigIntSerializeJSON, "Do not know how to serialize a BigInt") \ 289 T(BigIntShr, "BigInts have no unsigned right shift, use >> instead") \ 290 T(BigIntToNumber, "Cannot convert a BigInt value to a number") \ 291 T(CalledNonCallable, "% is not a function") \ 292 T(CalledOnNonObject, "% called on non-object") \ 293 T(CalledOnNullOrUndefined, "% called on null or undefined") \ 294 T(CallSiteExpectsFunction, \ 295 "CallSite expects wasm object as first or function as second argument, " \ 296 "got <%, %>") \ 297 T(CallSiteMethod, "CallSite method % expects CallSite as receiver") \ 298 T(CannotConvertToPrimitive, "Cannot convert object to primitive value") \ 299 T(CannotPreventExt, "Cannot prevent extensions") \ 300 T(CannotFreeze, "Cannot freeze") \ 301 T(CannotFreezeArrayBufferView, \ 302 "Cannot freeze array buffer views with elements") \ 303 T(CannotSeal, "Cannot seal") \ 304 T(CircularStructure, "Converting circular structure to JSON") \ 305 T(ConstructAbstractClass, "Abstract class % not directly constructable") \ 306 T(ConstAssign, "Assignment to constant variable.") \ 307 T(ConstructorClassField, "Classes may not have a field named 'constructor'") \ 308 T(ConstructorNonCallable, \ 309 "Class constructor % cannot be invoked without 'new'") \ 310 T(ConstructorNotFunction, "Constructor % requires 'new'") \ 311 T(ConstructorNotReceiver, "The .constructor property is not an object") \ 312 T(CurrencyCode, "Currency code is required with currency style.") \ 313 T(CyclicModuleDependency, "Detected cycle while resolving name '%' in '%'") \ 314 T(DataViewNotArrayBuffer, \ 315 "First argument to DataView constructor must be an ArrayBuffer") \ 316 T(DateType, "this is not a Date object.") \ 317 T(DebuggerFrame, "Debugger: Invalid frame index.") \ 318 T(DebuggerType, "Debugger: Parameters have wrong types.") \ 319 T(DeclarationMissingInitializer, "Missing initializer in % declaration") \ 320 T(DefineDisallowed, "Cannot define property %, object is not extensible") \ 321 T(DetachedOperation, "Cannot perform % on a detached ArrayBuffer") \ 322 T(DuplicateTemplateProperty, "Object template has duplicate property '%'") \ 323 T(ExtendsValueNotConstructor, \ 324 "Class extends value % is not a constructor or null") \ 325 T(FirstArgumentNotRegExp, \ 326 "First argument to % must not be a regular expression") \ 327 T(FunctionBind, "Bind must be called on a function") \ 328 T(GeneratorRunning, "Generator is already running") \ 329 T(IllegalInvocation, "Illegal invocation") \ 330 T(ImmutablePrototypeSet, \ 331 "Immutable prototype object '%' cannot have their prototype set") \ 332 T(ImportCallNotNewExpression, "Cannot use new with import") \ 333 T(ImportMetaOutsideModule, "Cannot use 'import.meta' outside a module") \ 334 T(ImportMissingSpecifier, "import() requires a specifier") \ 335 T(IncompatibleMethodReceiver, "Method % called on incompatible receiver %") \ 336 T(InstanceofNonobjectProto, \ 337 "Function has non-object prototype '%' in instanceof check") \ 338 T(InvalidArgument, "invalid_argument") \ 339 T(InvalidInOperatorUse, "Cannot use 'in' operator to search for '%' in %") \ 340 T(InvalidRegExpExecResult, \ 341 "RegExp exec method returned something other than an Object or null") \ 342 T(InvalidUnit, "Invalid unit argument for %() '%'") \ 343 T(IteratorResultNotAnObject, "Iterator result % is not an object") \ 344 T(IteratorSymbolNonCallable, "Found non-callable @@iterator") \ 345 T(IteratorValueNotAnObject, "Iterator value % is not an entry object") \ 346 T(LanguageID, "Language ID should be string or object.") \ 347 T(LocaleNotEmpty, \ 348 "First argument to Intl.Locale constructor can't be empty or missing") \ 349 T(LocaleBadParameters, "Incorrect locale information provided") \ 350 T(ListFormatBadParameters, "Incorrect ListFormat information provided") \ 351 T(MapperFunctionNonCallable, "flatMap mapper function is not callable") \ 352 T(MethodCalledOnWrongObject, \ 353 "Method % called on a non-object or on a wrong type of object.") \ 354 T(MethodInvokedOnNullOrUndefined, \ 355 "Method invoked on undefined or null value.") \ 356 T(MethodInvokedOnWrongType, "Method invoked on an object that is not %.") \ 357 T(NoAccess, "no access") \ 358 T(NonCallableInInstanceOfCheck, \ 359 "Right-hand side of 'instanceof' is not callable") \ 360 T(NonCoercible, "Cannot destructure 'undefined' or 'null'.") \ 361 T(NonCoercibleWithProperty, \ 362 "Cannot destructure property `%` of 'undefined' or 'null'.") \ 363 T(NonExtensibleProto, "% is not extensible") \ 364 T(NonObjectInInstanceOfCheck, \ 365 "Right-hand side of 'instanceof' is not an object") \ 366 T(NonObjectPropertyLoad, "Cannot read property '%' of %") \ 367 T(NonObjectPropertyStore, "Cannot set property '%' of %") \ 368 T(NoSetterInCallback, "Cannot set property % of % which has only a getter") \ 369 T(NotAnIterator, "% is not an iterator") \ 370 T(NotAPromise, "% is not a promise") \ 371 T(NotConstructor, "% is not a constructor") \ 372 T(NotDateObject, "this is not a Date object.") \ 373 T(NotGeneric, "% requires that 'this' be a %") \ 374 T(NotCallableOrIterable, \ 375 "% is not a function or its return value is not iterable") \ 376 T(NotCallableOrAsyncIterable, \ 377 "% is not a function or its return value is not async iterable") \ 378 T(NotFiniteNumber, "Value need to be finite number for %()") \ 379 T(NotIterable, "% is not iterable") \ 380 T(NotAsyncIterable, "% is not async iterable") \ 381 T(NotPropertyName, "% is not a valid property name") \ 382 T(NotTypedArray, "this is not a typed array.") \ 383 T(NotSuperConstructor, "Super constructor % of % is not a constructor") \ 384 T(NotSuperConstructorAnonymousClass, \ 385 "Super constructor % of anonymous class is not a constructor") \ 386 T(NotIntegerSharedTypedArray, "% is not an integer shared typed array.") \ 387 T(NotInt32SharedTypedArray, "% is not an int32 shared typed array.") \ 388 T(ObjectGetterExpectingFunction, \ 389 "Object.prototype.__defineGetter__: Expecting function") \ 390 T(ObjectGetterCallable, "Getter must be a function: %") \ 391 T(ObjectNotExtensible, "Cannot add property %, object is not extensible") \ 392 T(ObjectSetterExpectingFunction, \ 393 "Object.prototype.__defineSetter__: Expecting function") \ 394 T(ObjectSetterCallable, "Setter must be a function: %") \ 395 T(OrdinaryFunctionCalledAsConstructor, \ 396 "Function object that's not a constructor was created with new") \ 397 T(PromiseCyclic, "Chaining cycle detected for promise %") \ 398 T(PromiseExecutorAlreadyInvoked, \ 399 "Promise executor has already been invoked with non-undefined arguments") \ 400 T(PromiseNonCallable, "Promise resolve or reject function is not callable") \ 401 T(PropertyDescObject, "Property description must be an object: %") \ 402 T(PropertyNotFunction, \ 403 "'%' returned for property '%' of object '%' is not a function") \ 404 T(ProtoObjectOrNull, "Object prototype may only be an Object or null: %") \ 405 T(PrototypeParentNotAnObject, \ 406 "Class extends value does not have valid prototype property %") \ 407 T(ProxyConstructNonObject, \ 408 "'construct' on proxy: trap returned non-object ('%')") \ 409 T(ProxyDefinePropertyNonConfigurable, \ 410 "'defineProperty' on proxy: trap returned truish for defining " \ 411 "non-configurable property '%' which is either non-existant or " \ 412 "configurable in the proxy target") \ 413 T(ProxyDefinePropertyNonExtensible, \ 414 "'defineProperty' on proxy: trap returned truish for adding property '%' " \ 415 " to the non-extensible proxy target") \ 416 T(ProxyDefinePropertyIncompatible, \ 417 "'defineProperty' on proxy: trap returned truish for adding property '%' " \ 418 " that is incompatible with the existing property in the proxy target") \ 419 T(ProxyDeletePropertyNonConfigurable, \ 420 "'deleteProperty' on proxy: trap returned truish for property '%' which " \ 421 "is non-configurable in the proxy target") \ 422 T(ProxyGetNonConfigurableData, \ 423 "'get' on proxy: property '%' is a read-only and " \ 424 "non-configurable data property on the proxy target but the proxy " \ 425 "did not return its actual value (expected '%' but got '%')") \ 426 T(ProxyGetNonConfigurableAccessor, \ 427 "'get' on proxy: property '%' is a non-configurable accessor " \ 428 "property on the proxy target and does not have a getter function, but " \ 429 "the trap did not return 'undefined' (got '%')") \ 430 T(ProxyGetOwnPropertyDescriptorIncompatible, \ 431 "'getOwnPropertyDescriptor' on proxy: trap returned descriptor for " \ 432 "property '%' that is incompatible with the existing property in the " \ 433 "proxy target") \ 434 T(ProxyGetOwnPropertyDescriptorInvalid, \ 435 "'getOwnPropertyDescriptor' on proxy: trap returned neither object nor " \ 436 "undefined for property '%'") \ 437 T(ProxyGetOwnPropertyDescriptorNonConfigurable, \ 438 "'getOwnPropertyDescriptor' on proxy: trap reported non-configurability " \ 439 "for property '%' which is either non-existant or configurable in the " \ 440 "proxy target") \ 441 T(ProxyGetOwnPropertyDescriptorNonExtensible, \ 442 "'getOwnPropertyDescriptor' on proxy: trap returned undefined for " \ 443 "property '%' which exists in the non-extensible proxy target") \ 444 T(ProxyGetOwnPropertyDescriptorUndefined, \ 445 "'getOwnPropertyDescriptor' on proxy: trap returned undefined for " \ 446 "property '%' which is non-configurable in the proxy target") \ 447 T(ProxyGetPrototypeOfInvalid, \ 448 "'getPrototypeOf' on proxy: trap returned neither object nor null") \ 449 T(ProxyGetPrototypeOfNonExtensible, \ 450 "'getPrototypeOf' on proxy: proxy target is non-extensible but the " \ 451 "trap did not return its actual prototype") \ 452 T(ProxyHandlerOrTargetRevoked, \ 453 "Cannot create proxy with a revoked proxy as target or handler") \ 454 T(ProxyHasNonConfigurable, \ 455 "'has' on proxy: trap returned falsish for property '%' which exists in " \ 456 "the proxy target as non-configurable") \ 457 T(ProxyHasNonExtensible, \ 458 "'has' on proxy: trap returned falsish for property '%' but the proxy " \ 459 "target is not extensible") \ 460 T(ProxyIsExtensibleInconsistent, \ 461 "'isExtensible' on proxy: trap result does not reflect extensibility of " \ 462 "proxy target (which is '%')") \ 463 T(ProxyNonObject, \ 464 "Cannot create proxy with a non-object as target or handler") \ 465 T(ProxyOwnKeysMissing, \ 466 "'ownKeys' on proxy: trap result did not include '%'") \ 467 T(ProxyOwnKeysNonExtensible, \ 468 "'ownKeys' on proxy: trap returned extra keys but proxy target is " \ 469 "non-extensible") \ 470 T(ProxyPreventExtensionsExtensible, \ 471 "'preventExtensions' on proxy: trap returned truish but the proxy target " \ 472 "is extensible") \ 473 T(ProxyPrivate, "Cannot pass private property name to proxy trap") \ 474 T(ProxyRevoked, "Cannot perform '%' on a proxy that has been revoked") \ 475 T(ProxySetFrozenData, \ 476 "'set' on proxy: trap returned truish for property '%' which exists in " \ 477 "the proxy target as a non-configurable and non-writable data property " \ 478 "with a different value") \ 479 T(ProxySetFrozenAccessor, \ 480 "'set' on proxy: trap returned truish for property '%' which exists in " \ 481 "the proxy target as a non-configurable and non-writable accessor " \ 482 "property without a setter") \ 483 T(ProxySetPrototypeOfNonExtensible, \ 484 "'setPrototypeOf' on proxy: trap returned truish for setting a new " \ 485 "prototype on the non-extensible proxy target") \ 486 T(ProxyTrapReturnedFalsish, "'%' on proxy: trap returned falsish") \ 487 T(ProxyTrapReturnedFalsishFor, \ 488 "'%' on proxy: trap returned falsish for property '%'") \ 489 T(RedefineDisallowed, "Cannot redefine property: %") \ 490 T(RedefineExternalArray, \ 491 "Cannot redefine a property of an object with external array elements") \ 492 T(ReduceNoInitial, "Reduce of empty array with no initial value") \ 493 T(RegExpFlags, \ 494 "Cannot supply flags when constructing one RegExp from another") \ 495 T(RegExpNonObject, "% getter called on non-object %") \ 496 T(RegExpNonRegExp, "% getter called on non-RegExp object") \ 497 T(RelativeDateTimeFormatterBadParameters, \ 498 "Incorrect RelativeDateTimeFormatter provided") \ 499 T(ResolverNotAFunction, "Promise resolver % is not a function") \ 500 T(ReturnMethodNotCallable, "The iterator's 'return' method is not callable") \ 501 T(SharedArrayBufferTooShort, \ 502 "Derived SharedArrayBuffer constructor created a buffer which was too " \ 503 "small") \ 504 T(SharedArrayBufferSpeciesThis, \ 505 "SharedArrayBuffer subclass returned this from species constructor") \ 506 T(StaticPrototype, \ 507 "Classes may not have a static property named 'prototype'") \ 508 T(StrictDeleteProperty, "Cannot delete property '%' of %") \ 509 T(StrictPoisonPill, \ 510 "'caller', 'callee', and 'arguments' properties may not be accessed on " \ 511 "strict mode functions or the arguments objects for calls to them") \ 512 T(StrictReadOnlyProperty, \ 513 "Cannot assign to read only property '%' of % '%'") \ 514 T(StrictCannotCreateProperty, "Cannot create property '%' on % '%'") \ 515 T(SymbolIteratorInvalid, \ 516 "Result of the Symbol.iterator method is not an object") \ 517 T(SymbolAsyncIteratorInvalid, \ 518 "Result of the Symbol.asyncIterator method is not an object") \ 519 T(SymbolKeyFor, "% is not a symbol") \ 520 T(SymbolToNumber, "Cannot convert a Symbol value to a number") \ 521 T(SymbolToString, "Cannot convert a Symbol value to a string") \ 522 T(ThrowMethodMissing, "The iterator does not provide a 'throw' method.") \ 523 T(UndefinedOrNullToObject, "Cannot convert undefined or null to object") \ 524 T(ValueAndAccessor, \ 525 "Invalid property descriptor. Cannot both specify accessors and a value " \ 526 "or writable attribute, %") \ 527 T(VarRedeclaration, "Identifier '%' has already been declared") \ 528 T(WrongArgs, "%: Arguments list has wrong type") \ 529 /* ReferenceError */ \ 530 T(NotDefined, "% is not defined") \ 531 T(SuperAlreadyCalled, "Super constructor may only be called once") \ 532 T(UnsupportedSuper, "Unsupported reference to 'super'") \ 533 /* RangeError */ \ 534 T(BigIntDivZero, "Division by zero") \ 535 T(BigIntNegativeExponent, "Exponent must be positive") \ 536 T(BigIntTooBig, "Maximum BigInt size exceeded") \ 537 T(DateRange, "Provided date is not in valid range.") \ 538 T(ExpectedLocation, \ 539 "Expected letters optionally connected with underscores or hyphens for " \ 540 "a location, got %") \ 541 T(InvalidArrayBufferLength, "Invalid array buffer length") \ 542 T(ArrayBufferAllocationFailed, "Array buffer allocation failed") \ 543 T(InvalidArrayLength, "Invalid array length") \ 544 T(InvalidAtomicAccessIndex, "Invalid atomic access index") \ 545 T(InvalidCodePoint, "Invalid code point %") \ 546 T(InvalidCountValue, "Invalid count value") \ 547 T(InvalidCurrencyCode, "Invalid currency code: %") \ 548 T(InvalidDataViewAccessorOffset, \ 549 "Offset is outside the bounds of the DataView") \ 550 T(InvalidDataViewLength, "Invalid DataView length %") \ 551 T(InvalidOffset, "Start offset % is outside the bounds of the buffer") \ 552 T(InvalidHint, "Invalid hint: %") \ 553 T(InvalidIndex, "Invalid value: not (convertible to) a safe integer") \ 554 T(InvalidLanguageTag, "Invalid language tag: %") \ 555 T(InvalidWeakMapKey, "Invalid value used as weak map key") \ 556 T(InvalidWeakSetValue, "Invalid value used in weak set") \ 557 T(InvalidStringLength, "Invalid string length") \ 558 T(InvalidTimeValue, "Invalid time value") \ 559 T(InvalidTimeZone, "Invalid time zone specified: %") \ 560 T(InvalidTypedArrayAlignment, "% of % should be a multiple of %") \ 561 T(InvalidTypedArrayIndex, "Invalid typed array index") \ 562 T(InvalidTypedArrayLength, "Invalid typed array length: %") \ 563 T(LetInLexicalBinding, "let is disallowed as a lexically bound name") \ 564 T(LocaleMatcher, "Illegal value for localeMatcher:%") \ 565 T(NormalizationForm, "The normalization form should be one of %.") \ 566 T(ZeroDigitNumericSeparator, \ 567 "Numeric separator can not be used after leading 0.") \ 568 T(NumberFormatRange, "% argument must be between 0 and 100") \ 569 T(TrailingNumericSeparator, \ 570 "Numeric separators are not allowed at the end of numeric literals") \ 571 T(ContinuousNumericSeparator, \ 572 "Only one underscore is allowed as numeric separator") \ 573 T(PropertyValueOutOfRange, "% value is out of range.") \ 574 T(StackOverflow, "Maximum call stack size exceeded") \ 575 T(ToPrecisionFormatRange, \ 576 "toPrecision() argument must be between 1 and 100") \ 577 T(ToRadixFormatRange, "toString() radix argument must be between 2 and 36") \ 578 T(TypedArraySetOffsetOutOfBounds, "offset is out of bounds") \ 579 T(TypedArraySetSourceTooLarge, "Source is too large") \ 580 T(ValueOutOfRange, "Value % out of range for % options property %") \ 581 /* SyntaxError */ \ 582 T(AmbiguousExport, \ 583 "The requested module '%' contains conflicting star exports for name '%'") \ 584 T(BadGetterArity, "Getter must not have any formal parameters.") \ 585 T(BadSetterArity, "Setter must have exactly one formal parameter.") \ 586 T(BigIntInvalidString, "Invalid BigInt string") \ 587 T(ConstructorIsAccessor, "Class constructor may not be an accessor") \ 588 T(ConstructorIsGenerator, "Class constructor may not be a generator") \ 589 T(ConstructorIsAsync, "Class constructor may not be an async method") \ 590 T(DerivedConstructorReturnedNonObject, \ 591 "Derived constructors may only return object or undefined") \ 592 T(DuplicateConstructor, "A class may only have one constructor") \ 593 T(DuplicateExport, "Duplicate export of '%'") \ 594 T(DuplicateProto, \ 595 "Duplicate __proto__ fields are not allowed in object literals") \ 596 T(ForInOfLoopInitializer, \ 597 "% loop variable declaration may not have an initializer.") \ 598 T(ForInOfLoopMultiBindings, \ 599 "Invalid left-hand side in % loop: Must have a single binding.") \ 600 T(GeneratorInSingleStatementContext, \ 601 "Generators can only be declared at the top level or inside a block.") \ 602 T(AsyncFunctionInSingleStatementContext, \ 603 "Async functions can only be declared at the top level or inside a " \ 604 "block.") \ 605 T(IllegalBreak, "Illegal break statement") \ 606 T(NoIterationStatement, \ 607 "Illegal continue statement: no surrounding iteration statement") \ 608 T(IllegalContinue, \ 609 "Illegal continue statement: '%' does not denote an iteration statement") \ 610 T(IllegalLanguageModeDirective, \ 611 "Illegal '%' directive in function with non-simple parameter list") \ 612 T(IllegalReturn, "Illegal return statement") \ 613 T(IntrinsicWithSpread, "Intrinsic calls do not support spread arguments") \ 614 T(InvalidRestBindingPattern, \ 615 "`...` must be followed by an identifier in declaration contexts") \ 616 T(InvalidRestAssignmentPattern, \ 617 "`...` must be followed by an assignable reference in assignment " \ 618 "contexts") \ 619 T(InvalidEscapedReservedWord, "Keyword must not contain escaped characters") \ 620 T(InvalidEscapedMetaProperty, "'%' must not contain escaped characters") \ 621 T(InvalidLhsInAssignment, "Invalid left-hand side in assignment") \ 622 T(InvalidCoverInitializedName, "Invalid shorthand property initializer") \ 623 T(InvalidDestructuringTarget, "Invalid destructuring assignment target") \ 624 T(InvalidLhsInFor, "Invalid left-hand side in for-loop") \ 625 T(InvalidLhsInPostfixOp, \ 626 "Invalid left-hand side expression in postfix operation") \ 627 T(InvalidLhsInPrefixOp, \ 628 "Invalid left-hand side expression in prefix operation") \ 629 T(InvalidRegExpFlags, "Invalid flags supplied to RegExp constructor '%'") \ 630 T(InvalidOrUnexpectedToken, "Invalid or unexpected token") \ 631 T(InvalidPrivateFieldAccess, "Invalid private field '%'") \ 632 T(JsonParseUnexpectedEOS, "Unexpected end of JSON input") \ 633 T(JsonParseUnexpectedToken, "Unexpected token % in JSON at position %") \ 634 T(JsonParseUnexpectedTokenNumber, "Unexpected number in JSON at position %") \ 635 T(JsonParseUnexpectedTokenString, "Unexpected string in JSON at position %") \ 636 T(LabelRedeclaration, "Label '%' has already been declared") \ 637 T(LabelledFunctionDeclaration, \ 638 "Labelled function declaration not allowed as the body of a control flow " \ 639 "structure") \ 640 T(MalformedArrowFunParamList, "Malformed arrow function parameter list") \ 641 T(MalformedRegExp, "Invalid regular expression: /%/: %") \ 642 T(MalformedRegExpFlags, "Invalid regular expression flags") \ 643 T(ModuleExportUndefined, "Export '%' is not defined in module") \ 644 T(HtmlCommentInModule, "HTML comments are not allowed in modules") \ 645 T(MultipleDefaultsInSwitch, \ 646 "More than one default clause in switch statement") \ 647 T(NewlineAfterThrow, "Illegal newline after throw") \ 648 T(NoCatchOrFinally, "Missing catch or finally after try") \ 649 T(NotIsvar, "builtin %%IS_VAR: not a variable") \ 650 T(ParamAfterRest, "Rest parameter must be last formal parameter") \ 651 T(FlattenPastSafeLength, \ 652 "Flattening % elements on an array-like of length % " \ 653 "is disallowed, as the total surpasses 2**53-1") \ 654 T(PushPastSafeLength, \ 655 "Pushing % elements on an array-like of length % " \ 656 "is disallowed, as the total surpasses 2**53-1") \ 657 T(ElementAfterRest, "Rest element must be last element") \ 658 T(BadSetterRestParameter, \ 659 "Setter function argument must not be a rest parameter") \ 660 T(ParamDupe, "Duplicate parameter name not allowed in this context") \ 661 T(ParenthesisInArgString, "Function arg string contains parenthesis") \ 662 T(ArgStringTerminatesParametersEarly, \ 663 "Arg string terminates parameters early") \ 664 T(UnexpectedEndOfArgString, "Unexpected end of arg string") \ 665 T(RestDefaultInitializer, \ 666 "Rest parameter may not have a default initializer") \ 667 T(RuntimeWrongNumArgs, "Runtime function given wrong number of arguments") \ 668 T(SuperNotCalled, \ 669 "Must call super constructor in derived class before accessing 'this' or " \ 670 "returning from derived constructor") \ 671 T(SingleFunctionLiteral, "Single function literal required") \ 672 T(SloppyFunction, \ 673 "In non-strict mode code, functions can only be declared at top level, " \ 674 "inside a block, or as the body of an if statement.") \ 675 T(SpeciesNotConstructor, \ 676 "object.constructor[Symbol.species] is not a constructor") \ 677 T(StrictDelete, "Delete of an unqualified identifier in strict mode.") \ 678 T(StrictEvalArguments, "Unexpected eval or arguments in strict mode") \ 679 T(StrictFunction, \ 680 "In strict mode code, functions can only be declared at top level or " \ 681 "inside a block.") \ 682 T(StrictOctalLiteral, "Octal literals are not allowed in strict mode.") \ 683 T(StrictDecimalWithLeadingZero, \ 684 "Decimals with leading zeros are not allowed in strict mode.") \ 685 T(StrictOctalEscape, \ 686 "Octal escape sequences are not allowed in strict mode.") \ 687 T(StrictWith, "Strict mode code may not include a with statement") \ 688 T(TemplateOctalLiteral, \ 689 "Octal escape sequences are not allowed in template strings.") \ 690 T(ThisFormalParameter, "'this' is not a valid formal parameter name") \ 691 T(AwaitBindingIdentifier, \ 692 "'await' is not a valid identifier name in an async function") \ 693 T(AwaitExpressionFormalParameter, \ 694 "Illegal await-expression in formal parameters of async function") \ 695 T(TooManyArguments, \ 696 "Too many arguments in function call (only 65535 allowed)") \ 697 T(TooManyParameters, \ 698 "Too many parameters in function definition (only 65535 allowed)") \ 699 T(TooManySpreads, \ 700 "Literal containing too many nested spreads (up to 65534 allowed)") \ 701 T(TooManyVariables, "Too many variables declared (only 4194303 allowed)") \ 702 T(TooManyElementsInPromiseAll, "Too many elements passed to Promise.all") \ 703 T(TypedArrayTooShort, \ 704 "Derived TypedArray constructor created an array which was too small") \ 705 T(UnexpectedEOS, "Unexpected end of input") \ 706 T(UnexpectedReserved, "Unexpected reserved word") \ 707 T(UnexpectedStrictReserved, "Unexpected strict mode reserved word") \ 708 T(UnexpectedSuper, "'super' keyword unexpected here") \ 709 T(UnexpectedNewTarget, "new.target expression is not allowed here") \ 710 T(UnexpectedTemplateString, "Unexpected template string") \ 711 T(UnexpectedToken, "Unexpected token %") \ 712 T(UnexpectedTokenIdentifier, "Unexpected identifier") \ 713 T(UnexpectedTokenNumber, "Unexpected number") \ 714 T(UnexpectedTokenString, "Unexpected string") \ 715 T(UnexpectedTokenRegExp, "Unexpected regular expression") \ 716 T(UnexpectedLexicalDeclaration, \ 717 "Lexical declaration cannot appear in a single-statement context") \ 718 T(UnknownLabel, "Undefined label '%'") \ 719 T(UnresolvableExport, \ 720 "The requested module '%' does not provide an export named '%'") \ 721 T(UnterminatedArgList, "missing ) after argument list") \ 722 T(UnterminatedRegExp, "Invalid regular expression: missing /") \ 723 T(UnterminatedTemplate, "Unterminated template literal") \ 724 T(UnterminatedTemplateExpr, "Missing } in template expression") \ 725 T(FoundNonCallableHasInstance, "Found non-callable @@hasInstance") \ 726 T(InvalidHexEscapeSequence, "Invalid hexadecimal escape sequence") \ 727 T(InvalidUnicodeEscapeSequence, "Invalid Unicode escape sequence") \ 728 T(UndefinedUnicodeCodePoint, "Undefined Unicode code-point") \ 729 T(YieldInParameter, "Yield expression not allowed in formal parameter") \ 730 /* EvalError */ \ 731 T(CodeGenFromStrings, "%") \ 732 T(NoSideEffectDebugEvaluate, "Possible side-effect in debug-evaluate") \ 733 /* URIError */ \ 734 T(URIMalformed, "URI malformed") \ 735 /* Wasm errors (currently Error) */ \ 736 T(WasmTrapUnreachable, "unreachable") \ 737 T(WasmTrapMemOutOfBounds, "memory access out of bounds") \ 738 T(WasmTrapUnalignedAccess, "operation does not support unaligned accesses") \ 739 T(WasmTrapDivByZero, "divide by zero") \ 740 T(WasmTrapDivUnrepresentable, "divide result unrepresentable") \ 741 T(WasmTrapRemByZero, "remainder by zero") \ 742 T(WasmTrapFloatUnrepresentable, "float unrepresentable in integer range") \ 743 T(WasmTrapFuncInvalid, "invalid index into function table") \ 744 T(WasmTrapFuncSigMismatch, "function signature mismatch") \ 745 T(WasmTrapTypeError, "wasm function signature contains illegal type") \ 746 T(WasmExceptionError, "wasm exception") \ 747 /* Asm.js validation related */ \ 748 T(AsmJsInvalid, "Invalid asm.js: %") \ 749 T(AsmJsCompiled, "Converted asm.js to WebAssembly: %") \ 750 T(AsmJsInstantiated, "Instantiated asm.js: %") \ 751 T(AsmJsLinkingFailed, "Linking failure in asm.js: %") \ 752 /* DataCloneError messages */ \ 753 T(DataCloneError, "% could not be cloned.") \ 754 T(DataCloneErrorOutOfMemory, "Data cannot be cloned, out of memory.") \ 755 T(DataCloneErrorNeuteredArrayBuffer, \ 756 "An ArrayBuffer is neutered and could not be cloned.") \ 757 T(DataCloneErrorSharedArrayBufferTransferred, \ 758 "A SharedArrayBuffer could not be cloned. SharedArrayBuffer must not be " \ 759 "transferred.") \ 760 T(DataCloneDeserializationError, "Unable to deserialize cloned data.") \ 761 T(DataCloneDeserializationVersionError, \ 762 "Unable to deserialize cloned data due to invalid or unsupported " \ 763 "version.") \ 764 /* Builtins-Trace Errors */ \ 765 T(TraceEventCategoryError, "Trace event category must be a string.") \ 766 T(TraceEventNameError, "Trace event name must be a string.") \ 767 T(TraceEventNameLengthError, \ 768 "Trace event name must not be an empty string.") \ 769 T(TraceEventPhaseError, "Trace event phase must be a number.") \ 770 T(TraceEventIDError, "Trace event id must be a number.") 771 772 class MessageTemplate { 773 public: 774 enum Template { 775 #define TEMPLATE(NAME, STRING) k##NAME, 776 MESSAGE_TEMPLATES(TEMPLATE) 777 #undef TEMPLATE 778 kLastMessage 779 }; 780 781 static const char* TemplateString(int template_index); 782 783 static MaybeHandle<String> FormatMessage(Isolate* isolate, int template_index, 784 Handle<String> arg0, 785 Handle<String> arg1, 786 Handle<String> arg2); 787 788 static Handle<String> FormatMessage(Isolate* isolate, int template_index, 789 Handle<Object> arg); 790 }; 791 792 793 // A message handler is a convenience interface for accessing the list 794 // of message listeners registered in an environment 795 class MessageHandler { 796 public: 797 // Returns a message object for the API to use. 798 static Handle<JSMessageObject> MakeMessageObject( 799 Isolate* isolate, MessageTemplate::Template type, 800 const MessageLocation* location, Handle<Object> argument, 801 Handle<FixedArray> stack_frames); 802 803 // Report a formatted message (needs JS allocation). 804 static void ReportMessage(Isolate* isolate, const MessageLocation* loc, 805 Handle<JSMessageObject> message); 806 807 static void DefaultMessageReport(Isolate* isolate, const MessageLocation* loc, 808 Handle<Object> message_obj); 809 static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data); 810 static std::unique_ptr<char[]> GetLocalizedMessage(Isolate* isolate, 811 Handle<Object> data); 812 813 private: 814 static void ReportMessageNoExceptions(Isolate* isolate, 815 const MessageLocation* loc, 816 Handle<Object> message_obj, 817 v8::Local<v8::Value> api_exception_obj); 818 }; 819 820 821 } // namespace internal 822 } // namespace v8 823 824 #endif // V8_MESSAGES_H_ 825