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