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 #include "src/list.h" 17 18 namespace v8 { 19 namespace internal { 20 21 // Forward declarations. 22 class AbstractCode; 23 class FrameArray; 24 class JSMessageObject; 25 class LookupIterator; 26 class SharedFunctionInfo; 27 class SourceInfo; 28 29 class MessageLocation { 30 public: 31 MessageLocation(Handle<Script> script, int start_pos, int end_pos); 32 MessageLocation(Handle<Script> script, int start_pos, int end_pos, 33 Handle<SharedFunctionInfo> shared); 34 MessageLocation(); 35 36 Handle<Script> script() const { return script_; } 37 int start_pos() const { return start_pos_; } 38 int end_pos() const { return end_pos_; } 39 Handle<SharedFunctionInfo> shared() const { return shared_; } 40 41 private: 42 Handle<Script> script_; 43 int start_pos_; 44 int end_pos_; 45 Handle<SharedFunctionInfo> shared_; 46 }; 47 48 class StackFrameBase { 49 public: 50 virtual ~StackFrameBase() {} 51 52 virtual Handle<Object> GetReceiver() const = 0; 53 virtual Handle<Object> GetFunction() const = 0; 54 55 virtual Handle<Object> GetFileName() = 0; 56 virtual Handle<Object> GetFunctionName() = 0; 57 virtual Handle<Object> GetScriptNameOrSourceUrl() = 0; 58 virtual Handle<Object> GetMethodName() = 0; 59 virtual Handle<Object> GetTypeName() = 0; 60 virtual Handle<Object> GetEvalOrigin(); 61 62 virtual int GetPosition() const = 0; 63 // Return 1-based line number, including line offset. 64 virtual int GetLineNumber() = 0; 65 // Return 1-based column number, including column offset if first line. 66 virtual int GetColumnNumber() = 0; 67 68 virtual bool IsNative() = 0; 69 virtual bool IsToplevel() = 0; 70 virtual bool IsEval(); 71 virtual bool IsConstructor() = 0; 72 virtual bool IsStrict() const = 0; 73 74 virtual MaybeHandle<String> ToString() = 0; 75 76 protected: 77 StackFrameBase() {} 78 explicit StackFrameBase(Isolate* isolate) : isolate_(isolate) {} 79 Isolate* isolate_; 80 81 private: 82 virtual bool HasScript() const = 0; 83 virtual Handle<Script> GetScript() const = 0; 84 }; 85 86 class JSStackFrame : public StackFrameBase { 87 public: 88 JSStackFrame(Isolate* isolate, Handle<Object> receiver, 89 Handle<JSFunction> function, Handle<AbstractCode> code, 90 int offset); 91 virtual ~JSStackFrame() {} 92 93 Handle<Object> GetReceiver() const override { return receiver_; } 94 Handle<Object> GetFunction() const override; 95 96 Handle<Object> GetFileName() override; 97 Handle<Object> GetFunctionName() override; 98 Handle<Object> GetScriptNameOrSourceUrl() override; 99 Handle<Object> GetMethodName() override; 100 Handle<Object> GetTypeName() override; 101 102 int GetPosition() const override; 103 int GetLineNumber() override; 104 int GetColumnNumber() override; 105 106 bool IsNative() override; 107 bool IsToplevel() override; 108 bool IsConstructor() override; 109 bool IsStrict() const override { return is_strict_; } 110 111 MaybeHandle<String> ToString() override; 112 113 private: 114 JSStackFrame(); 115 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 116 117 bool HasScript() const override; 118 Handle<Script> GetScript() const override; 119 120 Handle<Object> receiver_; 121 Handle<JSFunction> function_; 122 Handle<AbstractCode> code_; 123 int offset_; 124 125 bool force_constructor_; 126 bool is_strict_; 127 128 friend class FrameArrayIterator; 129 }; 130 131 class WasmStackFrame : public StackFrameBase { 132 public: 133 virtual ~WasmStackFrame() {} 134 135 Handle<Object> GetReceiver() const override { return wasm_instance_; } 136 Handle<Object> GetFunction() const override; 137 138 Handle<Object> GetFileName() override { return Null(); } 139 Handle<Object> GetFunctionName() override; 140 Handle<Object> GetScriptNameOrSourceUrl() override { return Null(); } 141 Handle<Object> GetMethodName() override { return Null(); } 142 Handle<Object> GetTypeName() override { return Null(); } 143 144 int GetPosition() const override; 145 int GetLineNumber() override { return wasm_func_index_; } 146 int GetColumnNumber() override { return -1; } 147 148 bool IsNative() override { return false; } 149 bool IsToplevel() override { return false; } 150 bool IsConstructor() override { return false; } 151 bool IsStrict() const override { return false; } 152 153 MaybeHandle<String> ToString() override; 154 155 protected: 156 Handle<Object> Null() const; 157 158 bool HasScript() const override; 159 Handle<Script> GetScript() const override; 160 161 // TODO(wasm): Use proper typing. 162 Handle<Object> wasm_instance_; 163 uint32_t wasm_func_index_; 164 Handle<AbstractCode> code_; 165 int offset_; 166 167 private: 168 WasmStackFrame(); 169 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 170 171 friend class FrameArrayIterator; 172 friend class AsmJsWasmStackFrame; 173 }; 174 175 class AsmJsWasmStackFrame : public WasmStackFrame { 176 public: 177 virtual ~AsmJsWasmStackFrame() {} 178 179 Handle<Object> GetReceiver() const override; 180 Handle<Object> GetFunction() const override; 181 182 Handle<Object> GetFileName() override; 183 Handle<Object> GetScriptNameOrSourceUrl() override; 184 185 int GetPosition() const override; 186 int GetLineNumber() override; 187 int GetColumnNumber() override; 188 189 MaybeHandle<String> ToString() override; 190 191 private: 192 friend class FrameArrayIterator; 193 AsmJsWasmStackFrame(); 194 void FromFrameArray(Isolate* isolate, Handle<FrameArray> array, int frame_ix); 195 196 bool is_at_number_conversion_; 197 }; 198 199 class FrameArrayIterator { 200 public: 201 FrameArrayIterator(Isolate* isolate, Handle<FrameArray> array, 202 int frame_ix = 0); 203 204 StackFrameBase* Frame(); 205 206 bool HasNext() const; 207 void Next(); 208 209 private: 210 Isolate* isolate_; 211 212 Handle<FrameArray> array_; 213 int next_frame_ix_; 214 215 WasmStackFrame wasm_frame_; 216 AsmJsWasmStackFrame asm_wasm_frame_; 217 JSStackFrame js_frame_; 218 }; 219 220 // Determines how stack trace collection skips frames. 221 enum FrameSkipMode { 222 // Unconditionally skips the first frame. Used e.g. when the Error constructor 223 // is called, in which case the first frame is always a BUILTIN_EXIT frame. 224 SKIP_FIRST, 225 // Skip all frames until a specified caller function is seen. 226 SKIP_UNTIL_SEEN, 227 SKIP_NONE, 228 }; 229 230 class ErrorUtils : public AllStatic { 231 public: 232 static MaybeHandle<Object> Construct( 233 Isolate* isolate, Handle<JSFunction> target, Handle<Object> new_target, 234 Handle<Object> message, FrameSkipMode mode, Handle<Object> caller, 235 bool suppress_detailed_trace); 236 237 static MaybeHandle<String> ToString(Isolate* isolate, Handle<Object> recv); 238 239 static MaybeHandle<Object> MakeGenericError( 240 Isolate* isolate, Handle<JSFunction> constructor, int template_index, 241 Handle<Object> arg0, Handle<Object> arg1, Handle<Object> arg2, 242 FrameSkipMode mode); 243 244 // Formats a textual stack trace from the given structured stack trace. 245 // Note that this can call arbitrary JS code through Error.prepareStackTrace. 246 static MaybeHandle<Object> FormatStackTrace(Isolate* isolate, 247 Handle<JSObject> error, 248 Handle<Object> stack_trace); 249 }; 250 251 #define MESSAGE_TEMPLATES(T) \ 252 /* Error */ \ 253 T(None, "") \ 254 T(CyclicProto, "Cyclic __proto__ value") \ 255 T(Debugger, "Debugger: %") \ 256 T(DebuggerLoading, "Error loading debugger") \ 257 T(DefaultOptionsMissing, "Internal % error. Default options are missing.") \ 258 T(UncaughtException, "Uncaught %") \ 259 T(Unsupported, "Not supported") \ 260 T(WrongServiceType, "Internal error, wrong service type: %") \ 261 T(WrongValueType, "Internal error. Wrong value type.") \ 262 /* TypeError */ \ 263 T(ApplyNonFunction, \ 264 "Function.prototype.apply was called on %, which is a % and not a " \ 265 "function") \ 266 T(ArrayBufferTooShort, \ 267 "Derived ArrayBuffer constructor created a buffer which was too small") \ 268 T(ArrayBufferSpeciesThis, \ 269 "ArrayBuffer subclass returned this from species constructor") \ 270 T(ArrayFunctionsOnFrozen, "Cannot modify frozen array elements") \ 271 T(ArrayFunctionsOnSealed, "Cannot add/remove sealed array elements") \ 272 T(AtomicsWaitNotAllowed, "Atomics.wait cannot be called in this context") \ 273 T(CalledNonCallable, "% is not a function") \ 274 T(CalledOnNonObject, "% called on non-object") \ 275 T(CalledOnNullOrUndefined, "% called on null or undefined") \ 276 T(CallSiteExpectsFunction, \ 277 "CallSite expects wasm object as first or function as second argument, " \ 278 "got <%, %>") \ 279 T(CallSiteMethod, "CallSite method % expects CallSite as receiver") \ 280 T(CannotConvertToPrimitive, "Cannot convert object to primitive value") \ 281 T(CannotPreventExt, "Cannot prevent extensions") \ 282 T(CannotFreezeArrayBufferView, \ 283 "Cannot freeze array buffer views with elements") \ 284 T(CircularStructure, "Converting circular structure to JSON") \ 285 T(ConstructAbstractClass, "Abstract class % not directly constructable") \ 286 T(ConstAssign, "Assignment to constant variable.") \ 287 T(ConstructorNonCallable, \ 288 "Class constructor % cannot be invoked without 'new'") \ 289 T(ConstructorNotFunction, "Constructor % requires 'new'") \ 290 T(ConstructorNotReceiver, "The .constructor property is not an object") \ 291 T(CurrencyCode, "Currency code is required with currency style.") \ 292 T(CyclicModuleDependency, "Detected cycle while resolving name '%'") \ 293 T(DataViewNotArrayBuffer, \ 294 "First argument to DataView constructor must be an ArrayBuffer") \ 295 T(DateType, "this is not a Date object.") \ 296 T(DebuggerFrame, "Debugger: Invalid frame index.") \ 297 T(DebuggerType, "Debugger: Parameters have wrong types.") \ 298 T(DeclarationMissingInitializer, "Missing initializer in % declaration") \ 299 T(DefineDisallowed, "Cannot define property %, object is not extensible") \ 300 T(DetachedOperation, "Cannot perform % on a detached ArrayBuffer") \ 301 T(DuplicateTemplateProperty, "Object template has duplicate property '%'") \ 302 T(ExtendsValueNotConstructor, \ 303 "Class extends value % is not a constructor or null") \ 304 T(FirstArgumentNotRegExp, \ 305 "First argument to % must not be a regular expression") \ 306 T(FunctionBind, "Bind must be called on a function") \ 307 T(GeneratorRunning, "Generator is already running") \ 308 T(IllegalInvocation, "Illegal invocation") \ 309 T(ImmutablePrototypeSet, \ 310 "Immutable prototype object '%' cannot have their prototype set") \ 311 T(ImportCallNotNewExpression, "Cannot use new with import") \ 312 T(IncompatibleMethodReceiver, "Method % called on incompatible receiver %") \ 313 T(InstanceofNonobjectProto, \ 314 "Function has non-object prototype '%' in instanceof check") \ 315 T(InvalidArgument, "invalid_argument") \ 316 T(InvalidInOperatorUse, "Cannot use 'in' operator to search for '%' in %") \ 317 T(InvalidRegExpExecResult, \ 318 "RegExp exec method returned something other than an Object or null") \ 319 T(IteratorResultNotAnObject, "Iterator result % is not an object") \ 320 T(IteratorValueNotAnObject, "Iterator value % is not an entry object") \ 321 T(LanguageID, "Language ID should be string or object.") \ 322 T(MethodCalledOnWrongObject, \ 323 "Method % called on a non-object or on a wrong type of object.") \ 324 T(MethodInvokedOnNullOrUndefined, \ 325 "Method invoked on undefined or null value.") \ 326 T(MethodInvokedOnWrongType, "Method invoked on an object that is not %.") \ 327 T(NoAccess, "no access") \ 328 T(NonCallableInInstanceOfCheck, \ 329 "Right-hand side of 'instanceof' is not callable") \ 330 T(NonCoercible, "Cannot match against 'undefined' or 'null'.") \ 331 T(NonExtensibleProto, "% is not extensible") \ 332 T(NonObjectInInstanceOfCheck, \ 333 "Right-hand side of 'instanceof' is not an object") \ 334 T(NonObjectPropertyLoad, "Cannot read property '%' of %") \ 335 T(NonObjectPropertyStore, "Cannot set property '%' of %") \ 336 T(NoSetterInCallback, "Cannot set property % of % which has only a getter") \ 337 T(NotAnIterator, "% is not an iterator") \ 338 T(NotAPromise, "% is not a promise") \ 339 T(NotConstructor, "% is not a constructor") \ 340 T(NotDateObject, "this is not a Date object.") \ 341 T(NotIntlObject, "% is not an i18n object.") \ 342 T(NotGeneric, "% is not generic") \ 343 T(NotIterable, "% is not iterable") \ 344 T(NotPropertyName, "% is not a valid property name") \ 345 T(NotTypedArray, "this is not a typed array.") \ 346 T(NotSuperConstructor, "Super constructor % of % is not a constructor") \ 347 T(NotSuperConstructorAnonymousClass, \ 348 "Super constructor % of anonymous class is not a constructor") \ 349 T(NotIntegerSharedTypedArray, "% is not an integer shared typed array.") \ 350 T(NotInt32SharedTypedArray, "% is not an int32 shared typed array.") \ 351 T(ObjectGetterExpectingFunction, \ 352 "Object.prototype.__defineGetter__: Expecting function") \ 353 T(ObjectGetterCallable, "Getter must be a function: %") \ 354 T(ObjectNotExtensible, "Cannot add property %, object is not extensible") \ 355 T(ObjectSetterExpectingFunction, \ 356 "Object.prototype.__defineSetter__: Expecting function") \ 357 T(ObjectSetterCallable, "Setter must be a function: %") \ 358 T(OrdinaryFunctionCalledAsConstructor, \ 359 "Function object that's not a constructor was created with new") \ 360 T(PromiseCyclic, "Chaining cycle detected for promise %") \ 361 T(PromiseExecutorAlreadyInvoked, \ 362 "Promise executor has already been invoked with non-undefined arguments") \ 363 T(PromiseNonCallable, "Promise resolve or reject function is not callable") \ 364 T(PropertyDescObject, "Property description must be an object: %") \ 365 T(PropertyNotFunction, \ 366 "'%' returned for property '%' of object '%' is not a function") \ 367 T(ProtoObjectOrNull, "Object prototype may only be an Object or null: %") \ 368 T(PrototypeParentNotAnObject, \ 369 "Class extends value does not have valid prototype property %") \ 370 T(ProxyConstructNonObject, \ 371 "'construct' on proxy: trap returned non-object ('%')") \ 372 T(ProxyDefinePropertyNonConfigurable, \ 373 "'defineProperty' on proxy: trap returned truish for defining " \ 374 "non-configurable property '%' which is either non-existant or " \ 375 "configurable in the proxy target") \ 376 T(ProxyDefinePropertyNonExtensible, \ 377 "'defineProperty' on proxy: trap returned truish for adding property '%' " \ 378 " to the non-extensible proxy target") \ 379 T(ProxyDefinePropertyIncompatible, \ 380 "'defineProperty' on proxy: trap returned truish for adding property '%' " \ 381 " that is incompatible with the existing property in the proxy target") \ 382 T(ProxyDeletePropertyNonConfigurable, \ 383 "'deleteProperty' on proxy: trap returned truish for property '%' which " \ 384 "is non-configurable in the proxy target") \ 385 T(ProxyGetNonConfigurableData, \ 386 "'get' on proxy: property '%' is a read-only and " \ 387 "non-configurable data property on the proxy target but the proxy " \ 388 "did not return its actual value (expected '%' but got '%')") \ 389 T(ProxyGetNonConfigurableAccessor, \ 390 "'get' on proxy: property '%' is a non-configurable accessor " \ 391 "property on the proxy target and does not have a getter function, but " \ 392 "the trap did not return 'undefined' (got '%')") \ 393 T(ProxyGetOwnPropertyDescriptorIncompatible, \ 394 "'getOwnPropertyDescriptor' on proxy: trap returned descriptor for " \ 395 "property '%' that is incompatible with the existing property in the " \ 396 "proxy target") \ 397 T(ProxyGetOwnPropertyDescriptorInvalid, \ 398 "'getOwnPropertyDescriptor' on proxy: trap returned neither object nor " \ 399 "undefined for property '%'") \ 400 T(ProxyGetOwnPropertyDescriptorNonConfigurable, \ 401 "'getOwnPropertyDescriptor' on proxy: trap reported non-configurability " \ 402 "for property '%' which is either non-existant or configurable in the " \ 403 "proxy target") \ 404 T(ProxyGetOwnPropertyDescriptorNonExtensible, \ 405 "'getOwnPropertyDescriptor' on proxy: trap returned undefined for " \ 406 "property '%' which exists in the non-extensible proxy target") \ 407 T(ProxyGetOwnPropertyDescriptorUndefined, \ 408 "'getOwnPropertyDescriptor' on proxy: trap returned undefined for " \ 409 "property '%' which is non-configurable in the proxy target") \ 410 T(ProxyGetPrototypeOfInvalid, \ 411 "'getPrototypeOf' on proxy: trap returned neither object nor null") \ 412 T(ProxyGetPrototypeOfNonExtensible, \ 413 "'getPrototypeOf' on proxy: proxy target is non-extensible but the " \ 414 "trap did not return its actual prototype") \ 415 T(ProxyHandlerOrTargetRevoked, \ 416 "Cannot create proxy with a revoked proxy as target or handler") \ 417 T(ProxyHasNonConfigurable, \ 418 "'has' on proxy: trap returned falsish for property '%' which exists in " \ 419 "the proxy target as non-configurable") \ 420 T(ProxyHasNonExtensible, \ 421 "'has' on proxy: trap returned falsish for property '%' but the proxy " \ 422 "target is not extensible") \ 423 T(ProxyIsExtensibleInconsistent, \ 424 "'isExtensible' on proxy: trap result does not reflect extensibility of " \ 425 "proxy target (which is '%')") \ 426 T(ProxyNonObject, \ 427 "Cannot create proxy with a non-object as target or handler") \ 428 T(ProxyOwnKeysMissing, \ 429 "'ownKeys' on proxy: trap result did not include '%'") \ 430 T(ProxyOwnKeysNonExtensible, \ 431 "'ownKeys' on proxy: trap returned extra keys but proxy target is " \ 432 "non-extensible") \ 433 T(ProxyPreventExtensionsExtensible, \ 434 "'preventExtensions' on proxy: trap returned truish but the proxy target " \ 435 "is extensible") \ 436 T(ProxyPrivate, "Cannot pass private property name to proxy trap") \ 437 T(ProxyRevoked, "Cannot perform '%' on a proxy that has been revoked") \ 438 T(ProxySetFrozenData, \ 439 "'set' on proxy: trap returned truish for property '%' which exists in " \ 440 "the proxy target as a non-configurable and non-writable data property " \ 441 "with a different value") \ 442 T(ProxySetFrozenAccessor, \ 443 "'set' on proxy: trap returned truish for property '%' which exists in " \ 444 "the proxy target as a non-configurable and non-writable accessor " \ 445 "property without a setter") \ 446 T(ProxySetPrototypeOfNonExtensible, \ 447 "'setPrototypeOf' on proxy: trap returned truish for setting a new " \ 448 "prototype on the non-extensible proxy target") \ 449 T(ProxyTrapReturnedFalsish, "'%' on proxy: trap returned falsish") \ 450 T(ProxyTrapReturnedFalsishFor, \ 451 "'%' on proxy: trap returned falsish for property '%'") \ 452 T(ReadGlobalReferenceThroughProxy, "Trying to access '%' through proxy") \ 453 T(RedefineDisallowed, "Cannot redefine property: %") \ 454 T(RedefineExternalArray, \ 455 "Cannot redefine a property of an object with external array elements") \ 456 T(ReduceNoInitial, "Reduce of empty array with no initial value") \ 457 T(RegExpFlags, \ 458 "Cannot supply flags when constructing one RegExp from another") \ 459 T(RegExpNonObject, "% getter called on non-object %") \ 460 T(RegExpNonRegExp, "% getter called on non-RegExp object") \ 461 T(ReinitializeIntl, "Trying to re-initialize % object.") \ 462 T(ResolverNotAFunction, "Promise resolver % is not a function") \ 463 T(RestrictedFunctionProperties, \ 464 "'caller' and 'arguments' are restricted function properties and cannot " \ 465 "be accessed in this context.") \ 466 T(ReturnMethodNotCallable, "The iterator's 'return' method is not callable") \ 467 T(StaticPrototype, "Classes may not have static property named prototype") \ 468 T(StrictCannotAssign, "Cannot assign to read only '%' in strict mode") \ 469 T(StrictDeleteProperty, "Cannot delete property '%' of %") \ 470 T(StrictPoisonPill, \ 471 "'caller', 'callee', and 'arguments' properties may not be accessed on " \ 472 "strict mode functions or the arguments objects for calls to them") \ 473 T(StrictReadOnlyProperty, \ 474 "Cannot assign to read only property '%' of % '%'") \ 475 T(StrictCannotCreateProperty, "Cannot create property '%' on % '%'") \ 476 T(SymbolIteratorInvalid, \ 477 "Result of the Symbol.iterator method is not an object") \ 478 T(SymbolAsyncIteratorInvalid, \ 479 "Result of the Symbol.asyncIterator method is not an object") \ 480 T(SymbolKeyFor, "% is not a symbol") \ 481 T(SymbolToNumber, "Cannot convert a Symbol value to a number") \ 482 T(SymbolToString, "Cannot convert a Symbol value to a string") \ 483 T(ThrowMethodMissing, "The iterator does not provide a 'throw' method.") \ 484 T(UndefinedOrNullToObject, "Cannot convert undefined or null to object") \ 485 T(ValueAndAccessor, \ 486 "Invalid property descriptor. Cannot both specify accessors and a value " \ 487 "or writable attribute, %") \ 488 T(VarRedeclaration, "Identifier '%' has already been declared") \ 489 T(WrongArgs, "%: Arguments list has wrong type") \ 490 /* ReferenceError */ \ 491 T(NotDefined, "% is not defined") \ 492 T(SuperAlreadyCalled, "Super constructor may only be called once") \ 493 T(UnsupportedSuper, "Unsupported reference to 'super'") \ 494 /* RangeError */ \ 495 T(DateRange, "Provided date is not in valid range.") \ 496 T(ExpectedTimezoneID, \ 497 "Expected Area/Location(/Location)* for time zone, got %") \ 498 T(ExpectedLocation, \ 499 "Expected letters optionally connected with underscores or hyphens for " \ 500 "a location, got %") \ 501 T(InvalidArrayBufferLength, "Invalid array buffer length") \ 502 T(ArrayBufferAllocationFailed, "Array buffer allocation failed") \ 503 T(InvalidArrayLength, "Invalid array length") \ 504 T(InvalidAtomicAccessIndex, "Invalid atomic access index") \ 505 T(InvalidCodePoint, "Invalid code point %") \ 506 T(InvalidCountValue, "Invalid count value") \ 507 T(InvalidCurrencyCode, "Invalid currency code: %") \ 508 T(InvalidDataViewAccessorOffset, \ 509 "Offset is outside the bounds of the DataView") \ 510 T(InvalidDataViewLength, "Invalid DataView length %") \ 511 T(InvalidOffset, "Start offset % is outside the bounds of the buffer") \ 512 T(InvalidHint, "Invalid hint: %") \ 513 T(InvalidLanguageTag, "Invalid language tag: %") \ 514 T(InvalidWeakMapKey, "Invalid value used as weak map key") \ 515 T(InvalidWeakSetValue, "Invalid value used in weak set") \ 516 T(InvalidStringLength, "Invalid string length") \ 517 T(InvalidTimeValue, "Invalid time value") \ 518 T(InvalidTypedArrayAlignment, "% of % should be a multiple of %") \ 519 T(InvalidTypedArrayIndex, "Invalid typed array index") \ 520 T(InvalidTypedArrayLength, "Invalid typed array length") \ 521 T(LetInLexicalBinding, "let is disallowed as a lexically bound name") \ 522 T(LocaleMatcher, "Illegal value for localeMatcher:%") \ 523 T(NormalizationForm, "The normalization form should be one of %.") \ 524 T(NumberFormatRange, "% argument must be between 0 and 20") \ 525 T(PropertyValueOutOfRange, "% value is out of range.") \ 526 T(StackOverflow, "Maximum call stack size exceeded") \ 527 T(ToPrecisionFormatRange, "toPrecision() argument must be between 1 and 21") \ 528 T(ToRadixFormatRange, "toString() radix argument must be between 2 and 36") \ 529 T(TypedArraySetNegativeOffset, "Start offset is negative") \ 530 T(TypedArraySetSourceTooLarge, "Source is too large") \ 531 T(UnsupportedTimeZone, "Unsupported time zone specified %") \ 532 T(ValueOutOfRange, "Value % out of range for % options property %") \ 533 /* SyntaxError */ \ 534 T(AmbiguousExport, \ 535 "The requested module contains conflicting star exports for name '%'") \ 536 T(BadGetterArity, "Getter must not have any formal parameters.") \ 537 T(BadSetterArity, "Setter must have exactly one formal parameter.") \ 538 T(ConstructorIsAccessor, "Class constructor may not be an accessor") \ 539 T(ConstructorIsGenerator, "Class constructor may not be a generator") \ 540 T(ConstructorIsAsync, "Class constructor may not be an async method") \ 541 T(DerivedConstructorReturn, \ 542 "Derived constructors may only return object or undefined") \ 543 T(DuplicateConstructor, "A class may only have one constructor") \ 544 T(DuplicateExport, "Duplicate export of '%'") \ 545 T(DuplicateProto, \ 546 "Duplicate __proto__ fields are not allowed in object literals") \ 547 T(ForInOfLoopInitializer, \ 548 "% loop variable declaration may not have an initializer.") \ 549 T(ForInOfLoopMultiBindings, \ 550 "Invalid left-hand side in % loop: Must have a single binding.") \ 551 T(GeneratorInLegacyContext, \ 552 "Generator declarations are not allowed in legacy contexts.") \ 553 T(IllegalBreak, "Illegal break statement") \ 554 T(IllegalContinue, "Illegal continue statement") \ 555 T(IllegalLanguageModeDirective, \ 556 "Illegal '%' directive in function with non-simple parameter list") \ 557 T(IllegalReturn, "Illegal return statement") \ 558 T(InvalidEscapedReservedWord, "Keyword must not contain escaped characters") \ 559 T(InvalidEscapedMetaProperty, "'%' must not contain escaped characters") \ 560 T(InvalidLhsInAssignment, "Invalid left-hand side in assignment") \ 561 T(InvalidCoverInitializedName, "Invalid shorthand property initializer") \ 562 T(InvalidDestructuringTarget, "Invalid destructuring assignment target") \ 563 T(InvalidLhsInFor, "Invalid left-hand side in for-loop") \ 564 T(InvalidLhsInPostfixOp, \ 565 "Invalid left-hand side expression in postfix operation") \ 566 T(InvalidLhsInPrefixOp, \ 567 "Invalid left-hand side expression in prefix operation") \ 568 T(InvalidRegExpFlags, "Invalid flags supplied to RegExp constructor '%'") \ 569 T(InvalidOrUnexpectedToken, "Invalid or unexpected token") \ 570 T(JsonParseUnexpectedEOS, "Unexpected end of JSON input") \ 571 T(JsonParseUnexpectedToken, "Unexpected token % in JSON at position %") \ 572 T(JsonParseUnexpectedTokenNumber, "Unexpected number in JSON at position %") \ 573 T(JsonParseUnexpectedTokenString, "Unexpected string in JSON at position %") \ 574 T(LabelRedeclaration, "Label '%' has already been declared") \ 575 T(LabelledFunctionDeclaration, \ 576 "Labelled function declaration not allowed as the body of a control flow " \ 577 "structure") \ 578 T(MalformedArrowFunParamList, "Malformed arrow function parameter list") \ 579 T(MalformedRegExp, "Invalid regular expression: /%/: %") \ 580 T(MalformedRegExpFlags, "Invalid regular expression flags") \ 581 T(ModuleExportUndefined, "Export '%' is not defined in module") \ 582 T(MultipleDefaultsInSwitch, \ 583 "More than one default clause in switch statement") \ 584 T(NewlineAfterThrow, "Illegal newline after throw") \ 585 T(NoCatchOrFinally, "Missing catch or finally after try") \ 586 T(NotIsvar, "builtin %%IS_VAR: not a variable") \ 587 T(ParamAfterRest, "Rest parameter must be last formal parameter") \ 588 T(PushPastSafeLength, \ 589 "Pushing % elements on an array-like of length % " \ 590 "is disallowed, as the total surpasses 2**53-1") \ 591 T(ElementAfterRest, "Rest element must be last element") \ 592 T(BadSetterRestParameter, \ 593 "Setter function argument must not be a rest parameter") \ 594 T(ParamDupe, "Duplicate parameter name not allowed in this context") \ 595 T(ParenthesisInArgString, "Function arg string contains parenthesis") \ 596 T(ArgStringTerminatesParametersEarly, \ 597 "Arg string terminates parameters early") \ 598 T(UnexpectedEndOfArgString, "Unexpected end of arg string") \ 599 T(RuntimeWrongNumArgs, "Runtime function given wrong number of arguments") \ 600 T(SingleFunctionLiteral, "Single function literal required") \ 601 T(SloppyFunction, \ 602 "In non-strict mode code, functions can only be declared at top level, " \ 603 "inside a block, or as the body of an if statement.") \ 604 T(SpeciesNotConstructor, \ 605 "object.constructor[Symbol.species] is not a constructor") \ 606 T(StrictDelete, "Delete of an unqualified identifier in strict mode.") \ 607 T(StrictEvalArguments, "Unexpected eval or arguments in strict mode") \ 608 T(StrictFunction, \ 609 "In strict mode code, functions can only be declared at top level or " \ 610 "inside a block.") \ 611 T(StrictOctalLiteral, "Octal literals are not allowed in strict mode.") \ 612 T(StrictDecimalWithLeadingZero, \ 613 "Decimals with leading zeros are not allowed in strict mode.") \ 614 T(StrictOctalEscape, \ 615 "Octal escape sequences are not allowed in strict mode.") \ 616 T(StrictWith, "Strict mode code may not include a with statement") \ 617 T(TemplateOctalLiteral, \ 618 "Octal escape sequences are not allowed in template strings.") \ 619 T(ThisFormalParameter, "'this' is not a valid formal parameter name") \ 620 T(AwaitBindingIdentifier, \ 621 "'await' is not a valid identifier name in an async function") \ 622 T(AwaitExpressionFormalParameter, \ 623 "Illegal await-expression in formal parameters of async function") \ 624 T(TooManyArguments, \ 625 "Too many arguments in function call (only 65535 allowed)") \ 626 T(TooManyParameters, \ 627 "Too many parameters in function definition (only 65535 allowed)") \ 628 T(TooManySpreads, \ 629 "Literal containing too many nested spreads (up to 65534 allowed)") \ 630 T(TooManyVariables, "Too many variables declared (only 4194303 allowed)") \ 631 T(TypedArrayTooShort, \ 632 "Derived TypedArray constructor created an array which was too small") \ 633 T(UnexpectedEOS, "Unexpected end of input") \ 634 T(UnexpectedFunctionSent, \ 635 "function.sent expression is not allowed outside a generator") \ 636 T(UnexpectedReserved, "Unexpected reserved word") \ 637 T(UnexpectedStrictReserved, "Unexpected strict mode reserved word") \ 638 T(UnexpectedSuper, "'super' keyword unexpected here") \ 639 T(UnexpectedNewTarget, "new.target expression is not allowed here") \ 640 T(UnexpectedTemplateString, "Unexpected template string") \ 641 T(UnexpectedToken, "Unexpected token %") \ 642 T(UnexpectedTokenIdentifier, "Unexpected identifier") \ 643 T(UnexpectedTokenNumber, "Unexpected number") \ 644 T(UnexpectedTokenString, "Unexpected string") \ 645 T(UnexpectedTokenRegExp, "Unexpected regular expression") \ 646 T(UnexpectedLexicalDeclaration, \ 647 "Lexical declaration cannot appear in a single-statement context") \ 648 T(UnknownLabel, "Undefined label '%'") \ 649 T(UnresolvableExport, \ 650 "The requested module does not provide an export named '%'") \ 651 T(UnterminatedArgList, "missing ) after argument list") \ 652 T(UnterminatedRegExp, "Invalid regular expression: missing /") \ 653 T(UnterminatedTemplate, "Unterminated template literal") \ 654 T(UnterminatedTemplateExpr, "Missing } in template expression") \ 655 T(FoundNonCallableHasInstance, "Found non-callable @@hasInstance") \ 656 T(InvalidHexEscapeSequence, "Invalid hexadecimal escape sequence") \ 657 T(InvalidUnicodeEscapeSequence, "Invalid Unicode escape sequence") \ 658 T(UndefinedUnicodeCodePoint, "Undefined Unicode code-point") \ 659 T(YieldInParameter, "Yield expression not allowed in formal parameter") \ 660 /* EvalError */ \ 661 T(CodeGenFromStrings, "%") \ 662 T(NoSideEffectDebugEvaluate, "Possible side-effect in debug-evaluate") \ 663 /* URIError */ \ 664 T(URIMalformed, "URI malformed") \ 665 /* Wasm errors (currently Error) */ \ 666 T(WasmTrapUnreachable, "unreachable") \ 667 T(WasmTrapMemOutOfBounds, "memory access out of bounds") \ 668 T(WasmTrapDivByZero, "divide by zero") \ 669 T(WasmTrapDivUnrepresentable, "divide result unrepresentable") \ 670 T(WasmTrapRemByZero, "remainder by zero") \ 671 T(WasmTrapFloatUnrepresentable, "integer result unrepresentable") \ 672 T(WasmTrapFuncInvalid, "invalid function") \ 673 T(WasmTrapFuncSigMismatch, "function signature mismatch") \ 674 T(WasmTrapInvalidIndex, "invalid index into function table") \ 675 T(WasmTrapTypeError, "invalid type") \ 676 /* Asm.js validation related */ \ 677 T(AsmJsInvalid, "Invalid asm.js: %") \ 678 T(AsmJsCompiled, "Converted asm.js to WebAssembly: %") \ 679 T(AsmJsInstantiated, "Instantiated asm.js: %") \ 680 /* DataCloneError messages */ \ 681 T(DataCloneError, "% could not be cloned.") \ 682 T(DataCloneErrorOutOfMemory, "Data cannot be cloned, out of memory.") \ 683 T(DataCloneErrorNeuteredArrayBuffer, \ 684 "An ArrayBuffer is neutered and could not be cloned.") \ 685 T(DataCloneErrorSharedArrayBufferTransferred, \ 686 "A SharedArrayBuffer could not be cloned. SharedArrayBuffer must not be " \ 687 "transferred.") \ 688 T(DataCloneDeserializationError, "Unable to deserialize cloned data.") \ 689 T(DataCloneDeserializationVersionError, \ 690 "Unable to deserialize cloned data due to invalid or unsupported " \ 691 "version.") 692 693 class MessageTemplate { 694 public: 695 enum Template { 696 #define TEMPLATE(NAME, STRING) k##NAME, 697 MESSAGE_TEMPLATES(TEMPLATE) 698 #undef TEMPLATE 699 kLastMessage 700 }; 701 702 static const char* TemplateString(int template_index); 703 704 static MaybeHandle<String> FormatMessage(int template_index, 705 Handle<String> arg0, 706 Handle<String> arg1, 707 Handle<String> arg2); 708 709 static Handle<String> FormatMessage(Isolate* isolate, int template_index, 710 Handle<Object> arg); 711 }; 712 713 714 // A message handler is a convenience interface for accessing the list 715 // of message listeners registered in an environment 716 class MessageHandler { 717 public: 718 // Returns a message object for the API to use. 719 static Handle<JSMessageObject> MakeMessageObject( 720 Isolate* isolate, MessageTemplate::Template type, 721 const MessageLocation* location, Handle<Object> argument, 722 Handle<JSArray> stack_frames); 723 724 // Report a formatted message (needs JS allocation). 725 static void ReportMessage(Isolate* isolate, const MessageLocation* loc, 726 Handle<JSMessageObject> message); 727 728 static void DefaultMessageReport(Isolate* isolate, const MessageLocation* loc, 729 Handle<Object> message_obj); 730 static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data); 731 static std::unique_ptr<char[]> GetLocalizedMessage(Isolate* isolate, 732 Handle<Object> data); 733 734 private: 735 static void ReportMessageNoExceptions(Isolate* isolate, 736 const MessageLocation* loc, 737 Handle<Object> message_obj, 738 v8::Local<v8::Value> api_exception_obj); 739 }; 740 741 742 } // namespace internal 743 } // namespace v8 744 745 #endif // V8_MESSAGES_H_ 746
