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/
error-message.js
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/
error-message.js
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// @flow
import { makeErrorTemplates, ErrorCodes } from "./error";
/* eslint sort-keys: "error" */
/**
* @module parser/error-message
*/
// The Errors key follows https://cs.chromium.org/chromium/src/v8/src/common/message-template.h unless it does not exist
export const ErrorMessages = makeErrorTemplates(
{
AccessorIsGenerator: "A %0ter cannot be a generator.",
ArgumentsInClass:
"'arguments' is only allowed in functions and class methods.",
AsyncFunctionInSingleStatementContext:
"Async functions can only be declared at the top level or inside a block.",
AwaitBindingIdentifier:
"Can not use 'await' as identifier inside an async function.",
AwaitBindingIdentifierInStaticBlock:
"Can not use 'await' as identifier inside a static block.",
AwaitExpressionFormalParameter:
"'await' is not allowed in async function parameters.",
AwaitNotInAsyncContext:
"'await' is only allowed within async functions and at the top levels of modules.",
AwaitNotInAsyncFunction: "'await' is only allowed within async functions.",
BadGetterArity: "A 'get' accesor must not have any formal parameters.",
BadSetterArity: "A 'set' accesor must have exactly one formal parameter.",
BadSetterRestParameter:
"A 'set' accesor function argument must not be a rest parameter.",
ConstructorClassField: "Classes may not have a field named 'constructor'.",
ConstructorClassPrivateField:
"Classes may not have a private field named '#constructor'.",
ConstructorIsAccessor: "Class constructor may not be an accessor.",
ConstructorIsAsync: "Constructor can't be an async function.",
ConstructorIsGenerator: "Constructor can't be a generator.",
DeclarationMissingInitializer: "'%0' require an initialization value.",
DecoratorBeforeExport:
"Decorators must be placed *before* the 'export' keyword. You can set the 'decoratorsBeforeExport' option to false to use the 'export @decorator class {}' syntax.",
DecoratorConstructor:
"Decorators can't be used with a constructor. Did you mean '@dec class { ... }'?",
DecoratorExportClass:
"Using the export keyword between a decorator and a class is not allowed. Please use `export @dec class` instead.",
DecoratorSemicolon: "Decorators must not be followed by a semicolon.",
DecoratorStaticBlock: "Decorators can't be used with a static block.",
DeletePrivateField: "Deleting a private field is not allowed.",
DestructureNamedImport:
"ES2015 named imports do not destructure. Use another statement for destructuring after the import.",
DuplicateConstructor: "Duplicate constructor in the same class.",
DuplicateDefaultExport: "Only one default export allowed per module.",
DuplicateExport:
"`%0` has already been exported. Exported identifiers must be unique.",
DuplicateProto: "Redefinition of __proto__ property.",
DuplicateRegExpFlags: "Duplicate regular expression flag.",
ElementAfterRest: "Rest element must be last element.",
EscapedCharNotAnIdentifier: "Invalid Unicode escape.",
ExportBindingIsString:
"A string literal cannot be used as an exported binding without `from`.\n- Did you mean `export { '%0' as '%1' } from 'some-module'`?",
ExportDefaultFromAsIdentifier:
"'from' is not allowed as an identifier after 'export default'.",
ForInOfLoopInitializer:
"'%0' loop variable declaration may not have an initializer.",
ForOfAsync: "The left-hand side of a for-of loop may not be 'async'.",
ForOfLet: "The left-hand side of a for-of loop may not start with 'let'.",
GeneratorInSingleStatementContext:
"Generators can only be declared at the top level or inside a block.",
IllegalBreakContinue: "Unsyntactic %0.",
IllegalLanguageModeDirective:
"Illegal 'use strict' directive in function with non-simple parameter list.",
IllegalReturn: "'return' outside of function.",
ImportBindingIsString:
'A string literal cannot be used as an imported binding.\n- Did you mean `import { "%0" as foo }`?',
ImportCallArgumentTrailingComma:
"Trailing comma is disallowed inside import(...) arguments.",
ImportCallArity: "`import()` requires exactly %0.",
ImportCallNotNewExpression: "Cannot use new with import(...).",
ImportCallSpreadArgument: "`...` is not allowed in `import()`.",
InvalidBigIntLiteral: "Invalid BigIntLiteral.",
InvalidCodePoint: "Code point out of bounds.",
InvalidDecimal: "Invalid decimal.",
InvalidDigit: "Expected number in radix %0.",
InvalidEscapeSequence: "Bad character escape sequence.",
InvalidEscapeSequenceTemplate: "Invalid escape sequence in template.",
InvalidEscapedReservedWord: "Escape sequence in keyword %0.",
InvalidIdentifier: "Invalid identifier %0.",
InvalidLhs: "Invalid left-hand side in %0.",
InvalidLhsBinding: "Binding invalid left-hand side in %0.",
InvalidNumber: "Invalid number.",
InvalidOrMissingExponent:
"Floating-point numbers require a valid exponent after the 'e'.",
InvalidOrUnexpectedToken: "Unexpected character '%0'.",
InvalidParenthesizedAssignment: "Invalid parenthesized assignment pattern.",
InvalidPrivateFieldResolution: "Private name #%0 is not defined.",
InvalidPropertyBindingPattern: "Binding member expression.",
InvalidRecordProperty:
"Only properties and spread elements are allowed in record definitions.",
InvalidRestAssignmentPattern: "Invalid rest operator's argument.",
LabelRedeclaration: "Label '%0' is already declared.",
LetInLexicalBinding:
"'let' is not allowed to be used as a name in 'let' or 'const' declarations.",
LineTerminatorBeforeArrow: "No line break is allowed before '=>'.",
MalformedRegExpFlags: "Invalid regular expression flag.",
MissingClassName: "A class name is required.",
MissingEqInAssignment:
"Only '=' operator can be used for specifying default value.",
MissingSemicolon: "Missing semicolon.",
MissingUnicodeEscape: "Expecting Unicode escape sequence \\uXXXX.",
MixingCoalesceWithLogical:
"Nullish coalescing operator(??) requires parens when mixing with logical operators.",
ModuleAttributeDifferentFromType:
"The only accepted module attribute is `type`.",
ModuleAttributeInvalidValue:
"Only string literals are allowed as module attribute values.",
ModuleAttributesWithDuplicateKeys:
'Duplicate key "%0" is not allowed in module attributes.',
ModuleExportNameHasLoneSurrogate:
"An export name cannot include a lone surrogate, found '\\u%0'.",
ModuleExportUndefined: "Export '%0' is not defined.",
MultipleDefaultsInSwitch: "Multiple default clauses.",
NewlineAfterThrow: "Illegal newline after throw.",
NoCatchOrFinally: "Missing catch or finally clause.",
NumberIdentifier: "Identifier directly after number.",
NumericSeparatorInEscapeSequence:
"Numeric separators are not allowed inside unicode escape sequences or hex escape sequences.",
ObsoleteAwaitStar:
"'await*' has been removed from the async functions proposal. Use Promise.all() instead.",
OptionalChainingNoNew:
"Constructors in/after an Optional Chain are not allowed.",
OptionalChainingNoTemplate:
"Tagged Template Literals are not allowed in optionalChain.",
OverrideOnConstructor:
"'override' modifier cannot appear on a constructor declaration.",
ParamDupe: "Argument name clash.",
PatternHasAccessor: "Object pattern can't contain getter or setter.",
PatternHasMethod: "Object pattern can't contain methods.",
PipelineBodyNoArrow:
'Unexpected arrow "=>" after pipeline body; arrow function in pipeline body must be parenthesized.',
PipelineBodySequenceExpression:
"Pipeline body may not be a comma-separated sequence expression.",
PipelineHeadSequenceExpression:
"Pipeline head should not be a comma-separated sequence expression.",
PipelineTopicUnused:
"Pipeline is in topic style but does not use topic reference.",
PrimaryTopicNotAllowed:
"Topic reference was used in a lexical context without topic binding.",
PrimaryTopicRequiresSmartPipeline:
"Primary Topic Reference found but pipelineOperator not passed 'smart' for 'proposal' option.",
PrivateInExpectedIn:
"Private names are only allowed in property accesses (`obj.#%0`) or in `in` expressions (`#%0 in obj`).",
PrivateNameRedeclaration: "Duplicate private name #%0.",
RecordExpressionBarIncorrectEndSyntaxType:
"Record expressions ending with '|}' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.",
RecordExpressionBarIncorrectStartSyntaxType:
"Record expressions starting with '{|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.",
RecordExpressionHashIncorrectStartSyntaxType:
"Record expressions starting with '#{' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'.",
RecordNoProto: "'__proto__' is not allowed in Record expressions.",
RestTrailingComma: "Unexpected trailing comma after rest element.",
SloppyFunction:
"In non-strict mode code, functions can only be declared at top level, inside a block, or as the body of an if statement.",
StaticPrototype: "Classes may not have static property named prototype.",
StrictDelete: "Deleting local variable in strict mode.",
StrictEvalArguments: "Assigning to '%0' in strict mode.",
StrictEvalArgumentsBinding: "Binding '%0' in strict mode.",
StrictFunction:
"In strict mode code, functions can only be declared at top level or inside a block.",
StrictNumericEscape:
"The only valid numeric escape in strict mode is '\\0'.",
StrictOctalLiteral: "Legacy octal literals are not allowed in strict mode.",
StrictWith: "'with' in strict mode.",
SuperNotAllowed:
"`super()` is only valid inside a class constructor of a subclass. Maybe a typo in the method name ('constructor') or not extending another class?",
SuperPrivateField: "Private fields can't be accessed on super.",
TrailingDecorator: "Decorators must be attached to a class element.",
TupleExpressionBarIncorrectEndSyntaxType:
"Tuple expressions ending with '|]' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.",
TupleExpressionBarIncorrectStartSyntaxType:
"Tuple expressions starting with '[|' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'bar'.",
TupleExpressionHashIncorrectStartSyntaxType:
"Tuple expressions starting with '#[' are only allowed when the 'syntaxType' option of the 'recordAndTuple' plugin is set to 'hash'.",
UnexpectedArgumentPlaceholder: "Unexpected argument placeholder.",
UnexpectedAwaitAfterPipelineBody:
'Unexpected "await" after pipeline body; await must have parentheses in minimal proposal.',
UnexpectedDigitAfterHash: "Unexpected digit after hash token.",
UnexpectedImportExport:
"'import' and 'export' may only appear at the top level.",
UnexpectedKeyword: "Unexpected keyword '%0'.",
UnexpectedLeadingDecorator:
"Leading decorators must be attached to a class declaration.",
UnexpectedLexicalDeclaration:
"Lexical declaration cannot appear in a single-statement context.",
UnexpectedNewTarget:
"`new.target` can only be used in functions or class properties.",
UnexpectedNumericSeparator:
"A numeric separator is only allowed between two digits.",
UnexpectedPrivateField:
"Private names can only be used as the name of a class element (i.e. class C { #p = 42; #m() {} } )\n or a property of member expression (i.e. this.#p).",
UnexpectedReservedWord: "Unexpected reserved word '%0'.",
UnexpectedSuper: "'super' is only allowed in object methods and classes.",
UnexpectedToken: "Unexpected token '%0'.",
UnexpectedTokenUnaryExponentiation:
"Illegal expression. Wrap left hand side or entire exponentiation in parentheses.",
UnsupportedBind: "Binding should be performed on object property.",
UnsupportedDecoratorExport:
"A decorated export must export a class declaration.",
UnsupportedDefaultExport:
"Only expressions, functions or classes are allowed as the `default` export.",
UnsupportedImport:
"`import` can only be used in `import()` or `import.meta`.",
UnsupportedMetaProperty: "The only valid meta property for %0 is %0.%1.",
UnsupportedParameterDecorator:
"Decorators cannot be used to decorate parameters.",
UnsupportedPropertyDecorator:
"Decorators cannot be used to decorate object literal properties.",
UnsupportedSuper:
"'super' can only be used with function calls (i.e. super()) or in property accesses (i.e. super.prop or super[prop]).",
UnterminatedComment: "Unterminated comment.",
UnterminatedRegExp: "Unterminated regular expression.",
UnterminatedString: "Unterminated string constant.",
UnterminatedTemplate: "Unterminated template.",
VarRedeclaration: "Identifier '%0' has already been declared.",
YieldBindingIdentifier:
"Can not use 'yield' as identifier inside a generator.",
YieldInParameter: "Yield expression is not allowed in formal parameters.",
ZeroDigitNumericSeparator:
"Numeric separator can not be used after leading 0.",
},
/* code */ ErrorCodes.SyntaxError,
);
export const SourceTypeModuleErrorMessages = makeErrorTemplates(
{
ImportMetaOutsideModule: `import.meta may appear only with 'sourceType: "module"'`,
ImportOutsideModule: `'import' and 'export' may appear only with 'sourceType: "module"'`,
},
/* code */ ErrorCodes.SourceTypeModuleError,
);