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Report RegExp errors in grammar check, use Annex B grammar (#58295)

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Ron Buckton 2024-04-24 19:16:05 -04:00 committed by GitHub
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20 changed files with 184 additions and 262 deletions
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49
src/compiler/checker.ts
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@ -102,6 +102,7 @@ import {
countWhere,
createBinaryExpressionTrampoline,
createCompilerDiagnostic,
createDetachedDiagnostic,
createDiagnosticCollection,
createDiagnosticForFileFromMessageChain,
createDiagnosticForNode,
@ -123,6 +124,7 @@ import {
createPrinterWithRemoveCommentsNeverAsciiEscape,
createPrinterWithRemoveCommentsOmitTrailingSemicolon,
createPropertyNameNodeForIdentifierOrLiteral,
createScanner,
createSymbolTable,
createSyntacticTypeNodeBuilder,
createTextWriter,
@ -937,6 +939,7 @@ import {
rangeOfTypeParameters,
ReadonlyKeyword,
reduceLeft,
RegularExpressionLiteral,
RelationComparisonResult,
relativeComplement,
removeExtension,
@ -953,6 +956,7 @@ import {
ReverseMappedType,
sameMap,
SatisfiesExpression,
Scanner,
scanTokenAtPosition,
ScriptKind,
ScriptTarget,
@ -1446,6 +1450,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
var requestedExternalEmitHelperNames = new Set<string>();
var requestedExternalEmitHelpers: ExternalEmitHelpers;
var externalHelpersModule: Symbol;
var scanner: Scanner | undefined;
var Symbol = objectAllocator.getSymbolConstructor();
var Type = objectAllocator.getTypeConstructor();
@ -31353,6 +31358,48 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
}
}
function checkGrammarRegularExpressionLiteral(node: RegularExpressionLiteral) {
const sourceFile = getSourceFileOfNode(node);
if (!hasParseDiagnostics(sourceFile)) {
let lastError: DiagnosticWithLocation | undefined;
scanner ??= createScanner(ScriptTarget.ESNext, /*skipTrivia*/ true);
scanner.setScriptTarget(sourceFile.languageVersion);
scanner.setLanguageVariant(sourceFile.languageVariant);
scanner.setOnError((message, length, arg0) => {
// emulate `parseErrorAtPosition` from parser.ts
const start = scanner!.getTokenEnd();
if (message.category === DiagnosticCategory.Message && lastError && start === lastError.start && length === lastError.length) {
const error = createDetachedDiagnostic(sourceFile.fileName, sourceFile.text, start, length, message, arg0);
addRelatedInfo(lastError, error);
}
else if (!lastError || start !== lastError.start) {
lastError = createFileDiagnostic(sourceFile, start, length, message, arg0);
diagnostics.add(lastError);
}
});
scanner.setText(sourceFile.text, node.pos, node.end - node.pos);
try {
scanner.scan();
Debug.assert(scanner.reScanSlashToken(/*reportErrors*/ true) === SyntaxKind.RegularExpressionLiteral, "Expected scanner to rescan RegularExpressionLiteral");
return !!lastError;
}
finally {
scanner.setText("");
scanner.setOnError(/*onError*/ undefined);
}
}
return false;
}
function checkRegularExpressionLiteral(node: RegularExpressionLiteral) {
const nodeLinks = getNodeLinks(node);
if (!(nodeLinks.flags & NodeCheckFlags.TypeChecked)) {
nodeLinks.flags |= NodeCheckFlags.TypeChecked;
addLazyDiagnostic(() => checkGrammarRegularExpressionLiteral(node));
}
return globalRegExpType;
}
function checkSpreadExpression(node: SpreadElement, checkMode?: CheckMode): Type {
if (languageVersion < LanguageFeatureMinimumTarget.SpreadElements) {
checkExternalEmitHelpers(node, compilerOptions.downlevelIteration ? ExternalEmitHelpers.SpreadIncludes : ExternalEmitHelpers.SpreadArray);
@ -39662,7 +39709,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
case SyntaxKind.TemplateExpression:
return checkTemplateExpression(node as TemplateExpression);
case SyntaxKind.RegularExpressionLiteral:
return globalRegExpType;
return checkRegularExpressionLiteral(node as RegularExpressionLiteral);
case SyntaxKind.ArrayLiteralExpression:
return checkArrayLiteral(node as ArrayLiteralExpression, checkMode, forceTuple);
case SyntaxKind.ObjectLiteralExpression:

107
src/compiler/scanner.ts
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@ -76,6 +76,8 @@ export interface Scanner {
getTokenFlags(): TokenFlags;
reScanGreaterToken(): SyntaxKind;
reScanSlashToken(): SyntaxKind;
/** @internal */
reScanSlashToken(reportErrors?: boolean): SyntaxKind; // eslint-disable-line @typescript-eslint/unified-signatures
reScanAsteriskEqualsToken(): SyntaxKind;
reScanTemplateToken(isTaggedTemplate: boolean): SyntaxKind;
/** @deprecated use {@link reScanTemplateToken}(false) */
@ -1484,7 +1486,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
// | [0-3] [0-7] [0-7]?
// | [4-7] [0-7]
// NonOctalDecimalEscapeSequence ::= [89]
function scanEscapeSequence(shouldEmitInvalidEscapeError: boolean, isRegularExpression: boolean): string {
function scanEscapeSequence(shouldEmitInvalidEscapeError: boolean, isRegularExpression: boolean | "annex-b"): string {
const start = pos;
pos++;
if (pos >= end) {
@ -1523,7 +1525,9 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
tokenFlags |= TokenFlags.ContainsInvalidEscape;
if (isRegularExpression || shouldEmitInvalidEscapeError) {
const code = parseInt(text.substring(start + 1, pos), 8);
error(Diagnostics.Octal_escape_sequences_are_not_allowed_Use_the_syntax_0, start, pos - start, "\\x" + code.toString(16).padStart(2, "0"));
if (isRegularExpression !== "annex-b") {
error(Diagnostics.Octal_escape_sequences_are_not_allowed_Use_the_syntax_0, start, pos - start, "\\x" + code.toString(16).padStart(2, "0"));
}
return String.fromCharCode(code);
}
return text.substring(start, pos);
@ -1559,7 +1563,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
) {
// '\u{DDDDDD}'
pos -= 2;
return scanExtendedUnicodeEscape(isRegularExpression || shouldEmitInvalidEscapeError);
return scanExtendedUnicodeEscape(!!isRegularExpression || shouldEmitInvalidEscapeError);
}
// '\uDDDD'
for (; pos < start + 6; pos++) {
@ -1623,7 +1627,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
case CharacterCodes.paragraphSeparator:
return "";
default:
if (isRegularExpression && (shouldEmitInvalidEscapeError || isIdentifierPart(ch, languageVersion))) {
if (isRegularExpression === true && (shouldEmitInvalidEscapeError || isIdentifierPart(ch, languageVersion))) {
error(Diagnostics.This_character_cannot_be_escaped_in_a_regular_expression, pos - 2, 2);
}
return String.fromCharCode(ch);
@ -2386,7 +2390,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
return token = SyntaxKind.EqualsToken;
}
function reScanSlashToken(): SyntaxKind {
function reScanSlashToken(reportErrors?: boolean): SyntaxKind {
if (token === SyntaxKind.SlashToken || token === SyntaxKind.SlashEqualsToken) {
// Quickly get to the end of regex such that we know the flags
let p = tokenStart + 1;
@ -2444,44 +2448,57 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
if (!isIdentifierPart(ch, languageVersion)) {
break;
}
const flag = characterToRegularExpressionFlag(String.fromCharCode(ch));
if (flag === undefined) {
error(Diagnostics.Unknown_regular_expression_flag, p, 1);
}
else if (regExpFlags & flag) {
error(Diagnostics.Duplicate_regular_expression_flag, p, 1);
}
else if (((regExpFlags | flag) & RegularExpressionFlags.UnicodeMode) === RegularExpressionFlags.UnicodeMode) {
error(Diagnostics.The_Unicode_u_flag_and_the_Unicode_Sets_v_flag_cannot_be_set_simultaneously, p, 1);
}
else {
regExpFlags |= flag;
const availableFrom = regExpFlagToFirstAvailableLanguageVersion.get(flag)!;
if (languageVersion < availableFrom) {
error(Diagnostics.This_regular_expression_flag_is_only_available_when_targeting_0_or_later, p, 1, getNameOfScriptTarget(availableFrom));
if (reportErrors) {
const flag = characterToRegularExpressionFlag(String.fromCharCode(ch));
if (flag === undefined) {
error(Diagnostics.Unknown_regular_expression_flag, p, 1);
}
else if (regExpFlags & flag) {
error(Diagnostics.Duplicate_regular_expression_flag, p, 1);
}
else if (((regExpFlags | flag) & RegularExpressionFlags.UnicodeMode) === RegularExpressionFlags.UnicodeMode) {
error(Diagnostics.The_Unicode_u_flag_and_the_Unicode_Sets_v_flag_cannot_be_set_simultaneously, p, 1);
}
else {
regExpFlags |= flag;
const availableFrom = regExpFlagToFirstAvailableLanguageVersion.get(flag)!;
if (languageVersion < availableFrom) {
error(Diagnostics.This_regular_expression_flag_is_only_available_when_targeting_0_or_later, p, 1, getNameOfScriptTarget(availableFrom));
}
}
}
p++;
}
pos = tokenStart + 1;
const saveTokenPos = tokenStart;
const saveTokenFlags = tokenFlags;
scanRegularExpressionWorker(text, endOfBody, regExpFlags, isUnterminated);
if (!isUnterminated) {
if (reportErrors) {
pos = tokenStart + 1;
const saveTokenPos = tokenStart;
const saveTokenFlags = tokenFlags;
scanRegularExpressionWorker(text, endOfBody, regExpFlags, isUnterminated, /*annexB*/ true);
if (!isUnterminated) {
pos = p;
}
tokenStart = saveTokenPos;
tokenFlags = saveTokenFlags;
}
else {
pos = p;
}
tokenStart = saveTokenPos;
tokenFlags = saveTokenFlags;
tokenValue = text.substring(tokenStart, pos);
token = SyntaxKind.RegularExpressionLiteral;
}
return token;
function scanRegularExpressionWorker(text: string, end: number, regExpFlags: RegularExpressionFlags, isUnterminated: boolean) {
/** Grammar parameter */
const unicodeMode = !!(regExpFlags & RegularExpressionFlags.UnicodeMode);
function scanRegularExpressionWorker(text: string, end: number, regExpFlags: RegularExpressionFlags, isUnterminated: boolean, annexB: boolean) {
/** Grammar parameter */
const unicodeSetsMode = !!(regExpFlags & RegularExpressionFlags.UnicodeSets);
/** Grammar parameter */
const unicodeMode = !!(regExpFlags & RegularExpressionFlags.UnicodeMode);
if (unicodeMode) {
// Annex B treats any unicode mode as the strict syntax.
annexB = false;
}
/** @see {scanClassSetExpression} */
let mayContainStrings = false;
@ -2571,7 +2588,8 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
case CharacterCodes.equals:
case CharacterCodes.exclamation:
pos++;
isPreviousTermQuantifiable = false;
// In Annex B, `(?=Disjunction)` and `(?!Disjunction)` are quantifiable
isPreviousTermQuantifiable = annexB;
break;
case CharacterCodes.lessThan:
const groupNameStart = pos;
@ -2763,7 +2781,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
default:
// The scanEscapeSequence call in scanCharacterEscape must return non-empty strings
// since there must not be line breaks in a regex literal
Debug.assert(scanCharacterClassEscape() || scanDecimalEscape() || scanCharacterEscape());
Debug.assert(scanCharacterClassEscape() || scanDecimalEscape() || scanCharacterEscape(/*atomEscape*/ true));
break;
}
}
@ -2788,7 +2806,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
// IdentityEscape ::=
// | '^' | '$' | '/' | '\' | '.' | '*' | '+' | '?' | '(' | ')' | '[' | ']' | '{' | '}' | '|'
// | [~UnicodeMode] (any other non-identifier characters)
function scanCharacterEscape(): string {
function scanCharacterEscape(atomEscape: boolean): string {
Debug.assertEqual(text.charCodeAt(pos - 1), CharacterCodes.backslash);
let ch = text.charCodeAt(pos);
switch (ch) {
@ -2802,6 +2820,15 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
if (unicodeMode) {
error(Diagnostics.c_must_be_followed_by_an_ASCII_letter, pos - 2, 2);
}
else if (atomEscape && annexB) {
// Annex B treats
//
// ExtendedAtom : `\` [lookahead = `c`]
//
// as the single character `\` when `c` isn't followed by a valid control character
pos--;
return "\\";
}
return String.fromCharCode(ch);
case CharacterCodes.caret:
case CharacterCodes.$:
@ -2826,7 +2853,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
return "\\";
}
pos--;
return scanEscapeSequence(/*shouldEmitInvalidEscapeError*/ unicodeMode, /*isRegularExpression*/ true);
return scanEscapeSequence(/*shouldEmitInvalidEscapeError*/ unicodeMode, /*isRegularExpression*/ annexB ? "annex-b" : true);
}
}
@ -2873,12 +2900,12 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
if (isClassContentExit(ch)) {
return;
}
if (!minCharacter) {
if (!minCharacter && !annexB) {
error(Diagnostics.A_character_class_range_must_not_be_bounded_by_another_character_class, minStart, pos - 1 - minStart);
}
const maxStart = pos;
const maxCharacter = scanClassAtom();
if (!maxCharacter) {
if (!maxCharacter && !annexB) {
error(Diagnostics.A_character_class_range_must_not_be_bounded_by_another_character_class, maxStart, pos - maxStart);
continue;
}
@ -3208,7 +3235,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
pos++;
return String.fromCharCode(ch);
default:
return scanCharacterEscape();
return scanCharacterEscape(/*atomEscape*/ false);
}
}
else if (ch === text.charCodeAt(pos + 1)) {
@ -3275,7 +3302,7 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
if (scanCharacterClassEscape()) {
return "";
}
return scanCharacterEscape();
return scanCharacterEscape(/*atomEscape*/ false);
}
}
else {
@ -3407,7 +3434,9 @@ export function createScanner(languageVersion: ScriptTarget, skipTrivia: boolean
}
});
forEach(decimalEscapes, escape => {
if (escape.value > numberOfCapturingGroups) {
// in AnnexB, if a DecimalEscape is greater than the number of capturing groups then it is treated as
// either a LegacyOctalEscapeSequence or IdentityEscape
if (!annexB && escape.value > numberOfCapturingGroups) {
if (numberOfCapturingGroups) {
error(Diagnostics.A_decimal_escape_must_refer_to_an_existent_capturing_group_There_are_only_0_capturing_groups_in_this_regular_expression, escape.pos, escape.end - escape.pos, numberOfCapturingGroups);
}

2
src/testRunner/unittests/incrementalParser.ts
View File

@ -160,7 +160,7 @@ describe("unittests:: Incremental Parser", () => {
const oldText = ts.ScriptSnapshot.fromString(source);
const newTextAndChange = withInsert(oldText, semicolonIndex, "/");
compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 4);
compareTrees(oldText, newTextAndChange.text, newTextAndChange.textChangeRange, 0);
});
it("Regular expression 2", () => {

7
tests/baselines/reference/parserRegularExpression1.errors.txt
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@ -1,7 +0,0 @@
parserRegularExpression1.ts(1,34): error TS1516: A character class range must not be bounded by another character class.
==== parserRegularExpression1.ts (1 errors) ====
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
~~
!!! error TS1516: A character class range must not be bounded by another character class.

4
tests/baselines/reference/parserRegularExpression1.js
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@ -1,7 +1,7 @@
//// [tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression1.ts] ////
//// [parserRegularExpression1.ts]
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
//// [parserRegularExpression1.js]
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;

2
tests/baselines/reference/parserRegularExpression1.symbols
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@ -2,4 +2,4 @@
=== parserRegularExpression1.ts ===
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;

2
tests/baselines/reference/parserRegularExpression1.types
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@ -1,7 +1,7 @@
//// [tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression1.ts] ////
=== parserRegularExpression1.ts ===
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
>/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g : RegExp
> : ^^^^^^

10
tests/baselines/reference/parserRegularExpression6.js Normal file
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@ -0,0 +1,10 @@
//// [tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression6.ts] ////
//// [parserRegularExpression6.ts]
declare var a;
a /= 1; // parse as infix
a = /=/; // parse as regexp
//// [parserRegularExpression6.js]
a /= 1; // parse as infix
a = /=/; // parse as regexp

12
tests/baselines/reference/parserRegularExpression6.symbols Normal file
View File

@ -0,0 +1,12 @@
//// [tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression6.ts] ////
=== parserRegularExpression6.ts ===
declare var a;
>a : Symbol(a, Decl(parserRegularExpression6.ts, 0, 11))
a /= 1; // parse as infix
>a : Symbol(a, Decl(parserRegularExpression6.ts, 0, 11))
a = /=/; // parse as regexp
>a : Symbol(a, Decl(parserRegularExpression6.ts, 0, 11))

20
tests/baselines/reference/parserRegularExpression6.types Normal file
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@ -0,0 +1,20 @@
//// [tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression6.ts] ////
=== parserRegularExpression6.ts ===
declare var a;
>a : any
a /= 1; // parse as infix
>a /= 1 : number
> : ^^^^^^
>a : any
>1 : 1
> : ^
a = /=/; // parse as regexp
>a = /=/ : RegExp
> : ^^^^^^
>a : any
>/=/ : RegExp
> : ^^^^^^

7
tests/baselines/reference/parserRegularExpressionDivideAmbiguity4.errors.txt
View File

@ -1,10 +1,13 @@
parserRegularExpressionDivideAmbiguity4.ts(1,1): error TS2304: Cannot find name 'foo'.
parserRegularExpressionDivideAmbiguity4.ts(1,6): error TS1161: Unterminated regular expression literal.
parserRegularExpressionDivideAmbiguity4.ts(1,17): error TS1005: ')' expected.
==== parserRegularExpressionDivideAmbiguity4.ts (2 errors) ====
==== parserRegularExpressionDivideAmbiguity4.ts (3 errors) ====
foo(/notregexp);
~~~
!!! error TS2304: Cannot find name 'foo'.
!!! error TS1161: Unterminated regular expression literal.
!!! error TS1161: Unterminated regular expression literal.
!!! error TS1005: ')' expected.

2
tests/baselines/reference/parserRegularExpressionDivideAmbiguity4.js
View File

@ -4,4 +4,4 @@
foo(/notregexp);
//// [parserRegularExpressionDivideAmbiguity4.js]
foo(/notregexp);
foo(/notregexp););

8
tests/baselines/reference/parserRegularExpressionDivideAmbiguity4.types
View File

@ -2,10 +2,10 @@
=== parserRegularExpressionDivideAmbiguity4.ts ===
foo(/notregexp);
>foo(/notregexp) : any
> : ^^^
>foo(/notregexp); : any
> : ^^^
>foo : any
> : ^^^
>/notregexp : RegExp
> : ^^^^^^
>/notregexp); : RegExp
> : ^^^^^^

65
tests/baselines/reference/regularExpressionScanning(target=es2015).errors.txt
View File

@ -17,13 +17,6 @@ regularExpressionScanning.ts(5,6): error TS1499: Unknown regular expression flag
regularExpressionScanning.ts(5,7): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,10): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,11): error TS1500: Duplicate regular expression flag.
regularExpressionScanning.ts(7,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,29): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
regularExpressionScanning.ts(7,37): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
regularExpressionScanning.ts(7,42): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,43): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
regularExpressionScanning.ts(8,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(8,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(8,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
@ -48,10 +41,7 @@ regularExpressionScanning.ts(12,40): error TS1507: There is nothing available fo
regularExpressionScanning.ts(12,61): error TS1505: Incomplete quantifier. Digit expected.
regularExpressionScanning.ts(14,12): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,15): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,22): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,28): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,33): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,36): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(15,3): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,8): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,16): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -119,21 +109,12 @@ regularExpressionScanning.ts(23,19): error TS1518: Anything that would possibly
regularExpressionScanning.ts(23,31): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,47): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,59): error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
regularExpressionScanning.ts(25,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(25,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,3): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,6): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,15): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,20): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,10): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,21): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,24): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,39): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,43): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,7): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,10): error TS1535: This character cannot be escaped in a regular expression.
@ -164,9 +145,7 @@ regularExpressionScanning.ts(31,4): error TS1517: Range out of order in characte
regularExpressionScanning.ts(31,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,34): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,42): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,55): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(31,63): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,76): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(32,4): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,19): error TS1508: Unexpected ']'. Did you mean to escape it with backslash?
@ -224,7 +203,7 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
==== regularExpressionScanning.ts (224 errors) ====
==== regularExpressionScanning.ts (203 errors) ====
const regexes: RegExp[] = [
// Flags
/foo/visualstudiocode,
@ -270,20 +249,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1500: Duplicate regular expression flag.
// Capturing groups
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/u,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
@ -339,14 +304,8 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1517: Range out of order in character class.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
/\p{L}\p{gc=L}\p{ASCII}\p{Invalid}[\p{L}\p{gc=L}\P{ASCII}\p{Invalid}]/,
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -492,10 +451,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
// Character escapes
/\c[\c0\ca\cQ\c\C]\c1\C/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\c[\c0\ca\cQ\c\C]\c1\C/u,
~~
!!! error TS1512: '\c' must be followed by an ASCII letter.
@ -510,20 +465,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/u,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
@ -588,12 +529,8 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/[a--b[--][\d++[]]&&[[&0-9--]&&[\p{L}]--\P{L}-_-]]&&&\q{foo}[0---9][&&q&&&\q{bar}&&]/u,
~~~
!!! error TS1517: Range out of order in character class.

65
tests/baselines/reference/regularExpressionScanning(target=es5).errors.txt
View File

@ -17,13 +17,6 @@ regularExpressionScanning.ts(5,6): error TS1499: Unknown regular expression flag
regularExpressionScanning.ts(5,7): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,10): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,11): error TS1500: Duplicate regular expression flag.
regularExpressionScanning.ts(7,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,29): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
regularExpressionScanning.ts(7,37): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
regularExpressionScanning.ts(7,42): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,43): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
regularExpressionScanning.ts(8,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(8,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(8,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
@ -49,10 +42,7 @@ regularExpressionScanning.ts(12,40): error TS1507: There is nothing available fo
regularExpressionScanning.ts(12,61): error TS1505: Incomplete quantifier. Digit expected.
regularExpressionScanning.ts(14,12): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,15): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,22): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,28): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,33): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,36): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(15,3): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,8): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,16): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -123,8 +113,6 @@ regularExpressionScanning.ts(23,19): error TS1518: Anything that would possibly
regularExpressionScanning.ts(23,31): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,47): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,59): error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
regularExpressionScanning.ts(25,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(25,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,3): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,6): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,15): error TS1512: '\c' must be followed by an ASCII letter.
@ -132,13 +120,6 @@ regularExpressionScanning.ts(26,17): error TS1535: This character cannot be esca
regularExpressionScanning.ts(26,20): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,26): error TS1501: This regular expression flag is only available when targeting 'es6' or later.
regularExpressionScanning.ts(27,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,10): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,21): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,24): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,39): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,43): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,7): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,10): error TS1535: This character cannot be escaped in a regular expression.
@ -170,9 +151,7 @@ regularExpressionScanning.ts(31,4): error TS1517: Range out of order in characte
regularExpressionScanning.ts(31,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,34): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,42): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,55): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(31,63): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,76): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(32,4): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,19): error TS1508: Unexpected ']'. Did you mean to escape it with backslash?
@ -231,7 +210,7 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
==== regularExpressionScanning.ts (231 errors) ====
==== regularExpressionScanning.ts (210 errors) ====
const regexes: RegExp[] = [
// Flags
/foo/visualstudiocode,
@ -277,20 +256,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1500: Duplicate regular expression flag.
// Capturing groups
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/u,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
@ -348,14 +313,8 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1517: Range out of order in character class.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
/\p{L}\p{gc=L}\p{ASCII}\p{Invalid}[\p{L}\p{gc=L}\P{ASCII}\p{Invalid}]/,
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -507,10 +466,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1501: This regular expression flag is only available when targeting 'esnext' or later.
// Character escapes
/\c[\c0\ca\cQ\c\C]\c1\C/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\c[\c0\ca\cQ\c\C]\c1\C/u,
~~
!!! error TS1512: '\c' must be followed by an ASCII letter.
@ -527,20 +482,6 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
~
!!! error TS1501: This regular expression flag is only available when targeting 'es6' or later.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/u,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
@ -607,12 +548,8 @@ regularExpressionScanning.ts(42,101): error TS1501: This regular expression flag
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/[a--b[--][\d++[]]&&[[&0-9--]&&[\p{L}]--\P{L}-_-]]&&&\q{foo}[0---9][&&q&&&\q{bar}&&]/u,
~~~
!!! error TS1517: Range out of order in character class.

65
tests/baselines/reference/regularExpressionScanning(target=esnext).errors.txt
View File

@ -14,13 +14,6 @@ regularExpressionScanning.ts(5,6): error TS1499: Unknown regular expression flag
regularExpressionScanning.ts(5,7): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,10): error TS1509: This regular expression flag cannot be toggled within a subpattern.
regularExpressionScanning.ts(5,11): error TS1500: Duplicate regular expression flag.
regularExpressionScanning.ts(7,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(7,29): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
regularExpressionScanning.ts(7,37): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
regularExpressionScanning.ts(7,42): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(7,43): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
regularExpressionScanning.ts(8,9): error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
regularExpressionScanning.ts(8,24): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
regularExpressionScanning.ts(8,26): error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
@ -36,10 +29,7 @@ regularExpressionScanning.ts(12,40): error TS1507: There is nothing available fo
regularExpressionScanning.ts(12,61): error TS1505: Incomplete quantifier. Digit expected.
regularExpressionScanning.ts(14,12): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,15): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,22): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,28): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(14,33): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(14,36): error TS1516: A character class range must not be bounded by another character class.
regularExpressionScanning.ts(15,3): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,8): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(15,16): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -104,21 +94,12 @@ regularExpressionScanning.ts(22,47): error TS1528: Any Unicode property that wou
regularExpressionScanning.ts(23,19): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,31): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(23,47): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
regularExpressionScanning.ts(25,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(25,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,3): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,6): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,15): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(26,20): error TS1512: '\c' must be followed by an ASCII letter.
regularExpressionScanning.ts(26,23): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,10): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,17): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,21): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,24): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,39): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(27,43): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,3): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,7): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(28,10): error TS1535: This character cannot be escaped in a regular expression.
@ -148,9 +129,7 @@ regularExpressionScanning.ts(31,4): error TS1517: Range out of order in characte
regularExpressionScanning.ts(31,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,34): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,42): error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
regularExpressionScanning.ts(31,55): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(31,63): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(31,76): error TS1535: This character cannot be escaped in a regular expression.
regularExpressionScanning.ts(32,4): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,8): error TS1517: Range out of order in character class.
regularExpressionScanning.ts(32,19): error TS1508: Unexpected ']'. Did you mean to escape it with backslash?
@ -198,7 +177,7 @@ regularExpressionScanning.ts(42,5): error TS1518: Anything that would possibly m
regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
==== regularExpressionScanning.ts (198 errors) ====
==== regularExpressionScanning.ts (177 errors) ====
const regexes: RegExp[] = [
// Flags
/foo/visualstudiocode,
@ -238,20 +217,6 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
!!! error TS1500: Duplicate regular expression flag.
// Capturing groups
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x01'.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x53'.
~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x03'.
~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
~~~~
!!! error TS1487: Octal escape sequences are not allowed. Use the syntax '\x05'.
/\2()(\12)(foo)\1\0[\0\1\01\123](\3\03)\5\005/u,
~~
!!! error TS1533: A decimal escape must refer to an existent capturing group. There are only 4 capturing groups in this regular expression.
@ -289,14 +254,8 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
!!! error TS1517: Range out of order in character class.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
~~
!!! error TS1516: A character class range must not be bounded by another character class.
/\p{L}\p{gc=L}\p{ASCII}\p{Invalid}[\p{L}\p{gc=L}\P{ASCII}\p{Invalid}]/,
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
@ -436,10 +395,6 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
!!! error TS1518: Anything that would possibly match more than a single character is invalid inside a negated character class.
// Character escapes
/\c[\c0\ca\cQ\c\C]\c1\C/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\c[\c0\ca\cQ\c\C]\c1\C/u,
~~
!!! error TS1512: '\c' must be followed by an ASCII letter.
@ -454,20 +409,6 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/\q\\\`[\q\\\`[\Q\\\Q{\q{foo|bar|baz]\q{]\q{/u,
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
@ -530,12 +471,8 @@ regularExpressionScanning.ts(42,89): error TS1518: Anything that would possibly
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~~~~
!!! error TS1530: Unicode property value expressions are only available when the Unicode (u) flag or the Unicode Sets (v) flag is set.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
~~~
!!! error TS1517: Range out of order in character class.
~~
!!! error TS1535: This character cannot be escaped in a regular expression.
/[a--b[--][\d++[]]&&[[&0-9--]&&[\p{L}]--\P{L}-_-]]&&&\q{foo}[0---9][&&q&&&\q{bar}&&]/u,
~~~
!!! error TS1517: Range out of order in character class.

6
tests/baselines/reference/regularExpressionUnicodePropertyValueExpressionSuggestions.errors.txt
View File

@ -8,13 +8,13 @@ regularExpressionUnicodePropertyValueExpressionSuggestions.ts(1,55): error TS150
const regex = /\p{ascii}\p{Sc=Unknown}\p{sc=unknownX}/u;
~~~~~
!!! error TS1529: Unknown Unicode property name or value.
!!! related TS1369 regularExpressionUnicodePropertyValueExpressionSuggestions.ts:1:19: Did you mean 'ASCII'?
!!! related TS1369: Did you mean 'ASCII'?
~~
!!! error TS1524: Unknown Unicode property name.
!!! related TS1369 regularExpressionUnicodePropertyValueExpressionSuggestions.ts:1:28: Did you mean 'sc'?
!!! related TS1369: Did you mean 'sc'?
~~~~~~~~
!!! error TS1526: Unknown Unicode property value.
!!! related TS1369 regularExpressionUnicodePropertyValueExpressionSuggestions.ts:1:45: Did you mean 'Unknown'?
!!! related TS1369: Did you mean 'Unknown'?
~
!!! error TS1501: This regular expression flag is only available when targeting 'es6' or later.

8
tests/baselines/reference/shebangError.errors.txt
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@ -1,23 +1,17 @@
shebangError.ts(2,1): error TS18026: '#!' can only be used at the start of a file.
shebangError.ts(2,2): error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.
shebangError.ts(2,8): error TS1499: Unknown regular expression flag.
shebangError.ts(2,10): error TS1499: Unknown regular expression flag.
shebangError.ts(2,12): error TS2304: Cannot find name 'env'.
shebangError.ts(2,16): error TS1005: ';' expected.
shebangError.ts(2,16): error TS2304: Cannot find name 'node'.
==== shebangError.ts (7 errors) ====
==== shebangError.ts (5 errors) ====
var foo = 'Shebang is only allowed on the first line';
#!/usr/bin/env node
~~
!!! error TS18026: '#!' can only be used at the start of a file.
~~~~~~~~~
!!! error TS2362: The left-hand side of an arithmetic operation must be of type 'any', 'number', 'bigint' or an enum type.
~
!!! error TS1499: Unknown regular expression flag.
~
!!! error TS1499: Unknown regular expression flag.
~~~
!!! error TS2304: Cannot find name 'env'.
~~~~

2
tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression1.ts
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@ -1 +1 @@
return /(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;
/(#?-?\d*\.\d\w*%?)|(@?#?[\w-?]+%?)/g;

3
tests/cases/conformance/parser/ecmascript5/RegularExpressions/parserRegularExpression6.ts Normal file
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@ -0,0 +1,3 @@
declare var a;
a /= 1; // parse as infix
a = /=/; // parse as regexp