NSRangeException caused by MultilineFunctionChainsRule

[Thomvis]

New Issue Checklist

• Updated SwiftLint to the latest version
• I searched for existing GitHub issues

Bug Report

Complete output when running SwiftLint, including the stack trace and command used

I've added a minimal reproducing example to the nonTriggeringExamples of the rule (see below). This is the output when running the test:

Test Suite 'Selected tests' started at 2018-08-23 15:23:28.686
Test Suite 'SwiftLintFrameworkTests.xctest' started at 2018-08-23 15:23:28.687
Test Suite 'MultilineFunctionChainsRuleTests' started at 2018-08-23 15:23:28.688
Test Case '-[SwiftLintFrameworkTests.MultilineFunctionChainsRuleTests testWithDefaultConfiguration]' started.
2018-08-23 15:24:35.109845+0200 xctest[65789:5144897] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSRegularExpression enumerateMatchesInString:options:range:usingBlock:]: Range or index out of bounds'
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff4c1a732b __exceptionPreprocess + 171
	1   libobjc.A.dylib                     0x00007fff7382fc76 objc_exception_throw + 48
	2   CoreFoundation                      0x00007fff4c238dcd +[NSException raise:format:] + 205
	3   Foundation                          0x00007fff4e215e1b -[NSRegularExpression(NSMatching) enumerateMatchesInString:options:range:usingBlock:] + 347
	4   Foundation                          0x00007fff4e215cae -[NSRegularExpression(NSMatching) matchesInString:options:range:] + 151
	5   SwiftLintFramework                  0x0000000106fd3343 _T018SwiftLintFramework27MultilineFunctionChainsRuleV13callDotOffset012_2760C9B5A88L19D2933E33093D7025950LLSiSg012SourceKittenC04FileC4file_SC8_NSRangeV0H5RangetF + 483
	6   SwiftLintFramework                  0x0000000106fd2ee2 _T018SwiftLintFramework27MultilineFunctionChainsRuleV16violatingOffsets012_2760C9B5A88K19D2933E33093D7025950LLSaySiG012SourceKittenC04FileC4file_AA0A14ExpressionKindO4kinds10DictionaryVySSAG0P16KitRepresentable_pG10dictionarytFSi7dotLine_Si9dotOffsetSC8_NSRangeV5rangetSgAVcfU_ + 130
	7   SwiftLintFramework                  0x0000000106fd3152 _T018SwiftLintFramework27MultilineFunctionChainsRuleV16violatingOffsets012_2760C9B5A88K19D2933E33093D7025950LLSaySiG012SourceKittenC04FileC4file_AA0A14ExpressionKindO4kinds10DictionaryVySSAG0P16KitRepresentable_pG10dictionarytFSi7dotLine_Si9dotOffsetSC8_NSRangeV5rangetSgAVcfU_TA + 18
	8   SwiftLintFramework                  0x0000000106fd364e _T0SC8_NSRangeVSi7dotLine_Si0B6OffsetAB5rangetSgs5Error_pIgydzo_AbFsAG_pIgirzo_TR + 62
	9   SwiftLintFramework                  0x0000000106fd370b _T0SC8_NSRangeVSi7dotLine_Si0B6OffsetAB5rangetSgs5Error_pIgydzo_AbFsAG_pIgirzo_TRTA + 27
	10  libswiftCore.dylib                  0x0000000107f696f8 _T0s8SequencePsE10compactMapSayqd__Gqd__Sg7ElementQzKcKlF + 600
	11  SwiftLintFramework                  0x0000000106fd1ce5 _T018SwiftLintFramework27MultilineFunctionChainsRuleV16violatingOffsets012_2760C9B5A88K19D2933E33093D7025950LLSaySiG012SourceKittenC04FileC4file_AA0A14ExpressionKindO4kinds10DictionaryVySSAG0P16KitRepresentable_pG10dictionarytF + 485
	12  SwiftLintFramework                  0x0000000106fd19d6 _T018SwiftLintFramework27MultilineFunctionChainsRuleV8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_AA0A14ExpressionKindO4kinds10DictionaryVySSAH0K16KitRepresentable_pG10dictionarytF + 134
	13  SwiftLintFramework                  0x0000000106fd5411 _T018SwiftLintFramework27MultilineFunctionChainsRuleVAA7ASTRuleA2aDP8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_8KindTypeQz4kinds10DictionaryVySSAJ0L16KitRepresentable_pG10dictionarytFTW + 17
	14  SwiftLintFramework                  0x000000010724796e _T018SwiftLintFramework7ASTRulePAASS8KindType_8RawValueRTzrlE8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_s10DictionaryVySSAK0L16KitRepresentable_pG10dictionarytFAjRcfU_ + 878
	15  SwiftLintFramework                  0x0000000107247aa4 _T018SwiftLintFramework7ASTRulePAASS8KindType_8RawValueRTzrlE8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_s10DictionaryVySSAK0L16KitRepresentable_pG10dictionarytFAjRcfU_TA + 36
	16  SwiftLintFramework                  0x000000010702162d _T0s10DictionaryVySS21SourceKittenFramework0B16KitRepresentable_pGSay09SwiftLintD014StyleViolationVGs5Error_pIgxozo_AeIsAJ_pIgirzo_TR + 29
	17  SwiftLintFramework                  0x0000000107247b0b _T0s10DictionaryVySS21SourceKittenFramework0B16KitRepresentable_pGSay09SwiftLintD014StyleViolationVGs5Error_pIgxozo_AeIsAJ_pIgirzo_TRTA + 27
	18  libswiftCore.dylib                  0x0000000107f693b6 _T0s8SequencePsE7flatMapSay7ElementQyd__Gqd__ADQzKcKsAARd__lF + 502
	19  SwiftLintFramework                  0x000000010724759d _T018SwiftLintFramework7ASTRulePAASS8KindType_8RawValueRTzrlE8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_s10DictionaryVySSAK0L16KitRepresentable_pG10dictionarytF + 365
	20  SwiftLintFramework                  0x000000010724740e _T018SwiftLintFramework7ASTRulePAASS8KindType_8RawValueRTzrlE8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_tF + 110
	21  SwiftLintFramework                  0x0000000106fd5587 _T018SwiftLintFramework27MultilineFunctionChainsRuleVAA0G0A2aDP8validateSayAA14StyleViolationVG012SourceKittenC04FileC4file_tFTW + 23
	22  SwiftLintFramework                  0x000000010704078d _T018SwiftLintFramework4RulePAAE4lint33_5A5F37FCDEE0B4D78BAE05A90BA8A062LLAA0B6ResultAELLVSg012SourceKittenC04FileC4file_SayAA6RegionVG7regionsSb9benchmarkAA025SuperfluousDisableCommandD0VSg011superfluousxyD0tF + 1133
	23  SwiftLintFramework                  0x0000000107048be0 _T018SwiftLintFramework6LinterV18getStyleViolations33_5A5F37FCDEE0B4D78BAE05A90BA8A062LLSayAA0F9ViolationVG_SaySS2id_Sd4timetGtSb9benchmark_tFAA0B6ResultAELLVSgAA4Rule_pcfU0_ + 272
	24  SwiftLintFramework                  0x0000000107049073 _T018SwiftLintFramework6LinterV18getStyleViolations33_5A5F37FCDEE0B4D78BAE05A90BA8A062LLSayAA0F9ViolationVG_SaySS2id_Sd4timetGtSb9benchmark_tFAA0B6ResultAELLVSgAA4Rule_pcfU0_TA + 51
	25  SwiftLintFramework                  0x000000010704909e _T018SwiftLintFramework4Rule_pAA0B6Result33_5A5F37FCDEE0B4D78BAE05A90BA8A062LLVSgIegio_AaB_pAFIegir_TR + 30
	26  SwiftLintFramework                  0x0000000107049111 _T018SwiftLintFramework4Rule_pAA0B6Result33_5A5F37FCDEE0B4D78BAE05A90BA8A062LLVSgIegio_AaB_pAFIegir_TRTA + 17
	27  SwiftLintFramework                  0x00000001072886d1 _T0Sa18SwiftLintFrameworkE11parallelMapSayqd__Gqd__xc9transform_tlFACSryqd__SgGzcfU_ySicfU_ + 241
	28  SwiftLintFramework                  0x0000000107288bbe _T0Sa18SwiftLintFrameworkE11parallelMapSayqd__Gqd__xc9transform_tlFACSryqd__SgGzcfU_ySicfU_TA + 62
	29  libswiftDispatch.dylib              0x00000001084812e7 _T0SiIgy_SiIyBy_TR + 39
	30  libdispatch.dylib                   0x00007fff7441a221 _dispatch_client_callout2 + 8
	31  libdispatch.dylib                   0x00007fff7441a15d _dispatch_apply_invoke + 159
	32  libdispatch.dylib                   0x00007fff7440fe08 _dispatch_client_callout + 8
	33  libdispatch.dylib                   0x00007fff74411b7c _dispatch_root_queue_drain + 902
	34  libdispatch.dylib                   0x00007fff744117a5 _dispatch_worker_thread3 + 101
	35  libsystem_pthread.dylib             0x00007fff74761169 _pthread_wqthread + 1387
	36  libsystem_pthread.dylib             0x00007fff74760be9 start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb) 

Environment

• SwiftLint version: 0.27.0
• Installation method used: Homebrew and built from source
• Which Xcode version are you using (check xcode-select -p)? 9.4

// This triggers a violation:
a.b {
    // ““
}.e()

(see https://github.com/Thomvis/SwiftLint/blob/issue/MultilineFunctionChainsRule-nsrangeexception/Source/SwiftLintFramework/Rules/Style/MultilineFunctionChainsRule.swift#L67)

I think it has to do with the fancy quotes breaking the range calculations.

[Thomvis]

Thanks @marcelofabri!