tck

const (
	// SkipNone means the scenario is included in the pass-rate gate.
	SkipNone SkipReason = ""

	// SkipPlaceholder excludes Scenario Outline template rows that contain
	// angle-bracket placeholders (<pattern>, <yield>, etc.) which are not
	// valid Cypher.
	SkipPlaceholder SkipReason = "placeholder-template"

	// SkipSingleQuoteString excludes queries with multi-word single-quoted
	// string literals (e.g. 'The Matrix'). The grammar tokenises them as a
	// char literal followed by an identifier, producing a spurious parse error.
	SkipSingleQuoteString SkipReason = "single-quote-string"

	// SkipVarlenExplicitBound is retained for reference. The skip condition was
	// resolved via normalizeVarlenBounds in cypher/parser/normalize.go,
	// which pre-processes unsigned integer range bounds into their negated form so
	// that the ANTLR lexer emits DIGIT tokens instead of ID tokens.
	//
	//nolint:unused // retained for documentation; normalizeVarlenBounds resolves the gap
	SkipVarlenExplicitBound SkipReason = "varlen-explicit-bound"

	// SkipVarlenDotDot is retained for documentation. The skip condition was
	// removed because normalizeVarlenDotDot in cypher/parser/normalize.go
	// pre-processes [..], [N..], [..M], [N..M] patterns (without *) to their
	// equivalent [*..], [*N..], [*..M], [*N..M] forms before lexing.
	//
	//nolint:unused // retained for documentation; normalizeVarlenDotDot resolves the gap
	SkipVarlenDotDot SkipReason = "varlen-dotdot"

	// SkipChainedWith is retained for documentation. The skip condition was
	// removed because MultiPartQ() in the generated parser was modified to
	// consume readingStatement* segments interleaved with each WITH clause,
	// enabling unlimited chaining of WITH clauses in a query.
	//
	//nolint:unused // retained for documentation; MultiPartQ modification resolves the gap
	SkipChainedWith SkipReason = "chained-with"

	// SkipNegHexOct is retained for documentation. The skip condition was
	// removed because normalizeNegHexOct in cypher/parser/normalize.go
	// rewrites -0x… and -0o… literals to (0-0x…) / (0-0o…) before lexing,
	// which the grammar accepts as a binary subtraction expression.
	//
	//nolint:unused // retained for documentation; normalizeNegHexOct resolves the gap
	SkipNegHexOct SkipReason = "neg-hex-oct"

	// SkipLeadingDotFloat is retained for documentation. The skip condition was
	// removed because .5, -.5, and similar leading-dot floats already parse
	// correctly via the ANTLR grammar without preprocessing. The skip was
	// overly conservative.
	//
	//nolint:unused // retained for documentation; leading-dot floats parse correctly without a skip
	SkipLeadingDotFloat SkipReason = "leading-dot-float"

	// SkipZeroDotFloat is retained for documentation. The skip condition was
	// removed because normalizeZeroDotFloat in cypher/parser/normalize.go
	// pre-processes 0.NNN literals to .NNN before lexing, resolving the gap.
	//
	//nolint:unused // retained for documentation; normalizeZeroDotFloat resolves the gap
	SkipZeroDotFloat SkipReason = "zero-dot-float"

	// SkipDoubleNot is retained for documentation. The skip condition was
	// removed because normalizeDoubleNot in cypher/parser/normalize.go
	// applies double-negation elimination (NOT NOT expr → expr, NOT NOT NOT expr
	// → NOT expr) before lexing, resolving the grammar gap.
	//
	//nolint:unused // retained for documentation; normalizeDoubleNot resolves the gap
	SkipDoubleNot SkipReason = "double-not"

	// SkipCallNoParen is retained for documentation. The skip condition was
	// removed because QueryCallSt() in the generated parser was modified to
	// make the argument parentheses optional for in-query CALL, matching the
	// behaviour of StandaloneCall.
	//
	//nolint:unused // retained for documentation; QueryCallSt modification resolves the gap
	SkipCallNoParen SkipReason = "call-no-paren"

	// SkipOverflowAsSema is retained for documentation. The skip condition was
	// removed because IntegerOverflow and FloatingPointOverflow are now listed in
	// parseTimeErrors: the visitor returns a non-nil error for overflow, which
	// satisfies the TCK expectation of a compile-time SyntaxError.
	//
	//nolint:unused // retained for documentation; overflow scenarios now handled via parseTimeErrors
	SkipOverflowAsSema SkipReason = "overflow-as-sema"

	// SkipGrammarGapLiteral excludes specific literal scenarios where the
	// grammar is more permissive than the specification:
	//
	//   - InvalidUnicodeLiteral / InvalidUnicodeCharacter: the grammar does not
	//     validate unicode escape sequences or disallow non-ASCII operator
	//     characters.
	//   - InvalidNumberLiteral: the grammar tokenises malformed hex/integer
	//     literals as two valid tokens rather than a single error token.
	//   - UnexpectedSyntax on map keys starting with a digit: the grammar
	//     permits them.
	//   - UnexpectedSyntax on pattern expressions in RETURN/WITH/SET: the
	//     grammar accepts them; the restriction is semantic.
	SkipGrammarGapLiteral SkipReason = "grammar-gap-literal"

	// SkipLongFloatSema is retained for documentation. The skip condition was
	// removed because strconv.ParseFloat handles very long but finite decimal
	// float literals correctly, rounding to the nearest IEEE-754 double without
	// error; the visitor no longer raises a SemaError for such literals.
	//
	//nolint:unused // retained for documentation; long valid floats parse correctly without a skip
	SkipLongFloatSema SkipReason = "long-float-sema"
)