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Diffstat (limited to 'compiler/wordrecg.nim')
| -rw-r--r-- | compiler/wordrecg.nim | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/compiler/wordrecg.nim b/compiler/wordrecg.nim new file mode 100644 index 000000000..39e0b2e25 --- /dev/null +++ b/compiler/wordrecg.nim @@ -0,0 +1,150 @@ +# +# +# The Nim Compiler +# (c) Copyright 2015 Andreas Rumpf +# +# See the file "copying.txt", included in this +# distribution, for details about the copyright. +# + +# This module contains a word recognizer, i.e. a simple +# procedure which maps special words to an enumeration. +# It is primarily needed because Pascal's case statement +# does not support strings. Without this the code would +# be slow and unreadable. + +type + TSpecialWord* = enum + wInvalid = "", + wAddr = "addr", wAnd = "and", wAs = "as", wAsm = "asm", + wBind = "bind", wBlock = "block", wBreak = "break", wCase = "case", wCast = "cast", + wConcept = "concept", wConst = "const", wContinue = "continue", wConverter = "converter", + wDefer = "defer", wDiscard = "discard", wDistinct = "distinct", wDiv = "div", wDo = "do", + wElif = "elif", wElse = "else", wEnd = "end", wEnum = "enum", wExcept = "except", + wExport = "export", wFinally = "finally", wFor = "for", wFrom = "from", wFunc = "func", + wIf = "if", wImport = "import", wIn = "in", wInclude = "include", wInterface = "interface", + wIs = "is", wIsnot = "isnot", wIterator = "iterator", wLet = "let", wMacro = "macro", + wMethod = "method", wMixin = "mixin", wMod = "mod", wNil = "nil", wNot = "not", wNotin = "notin", + wObject = "object", wOf = "of", wOr = "or", wOut = "out", wProc = "proc", wPtr = "ptr", + wRaise = "raise", wRef = "ref", wReturn = "return", wShl = "shl", wShr = "shr", wStatic = "static", + wTemplate = "template", wTry = "try", wTuple = "tuple", wType = "type", wUsing = "using", + wVar = "var", wWhen = "when", wWhile = "while", wXor = "xor", wYield = "yield", + + wColon = ":", wColonColon = "::", wEquals = "=", wDot = ".", wDotDot = "..", + wStar = "*", wMinus = "-", + wUnderscore = "_", + wMagic = "magic", wThread = "thread", wFinal = "final", wProfiler = "profiler", + wMemTracker = "memtracker", wObjChecks = "objchecks", + wIntDefine = "intdefine", wStrDefine = "strdefine", wBoolDefine = "booldefine", + wCursor = "cursor", wNoalias = "noalias", wEffectsOf = "effectsOf", + wUncheckedAssign = "uncheckedAssign", wRunnableExamples = "runnableExamples", + + wImmediate = "immediate", wConstructor = "constructor", wDestructor = "destructor", + wDelegator = "delegator", wOverride = "override", wImportCpp = "importcpp", + wCppNonPod = "cppNonPod", + wImportObjC = "importobjc", wImportCompilerProc = "importCompilerProc", + wImportc = "importc", wImportJs = "importjs", wExportc = "exportc", wExportCpp = "exportcpp", + wExportNims = "exportnims", + wIncompleteStruct = "incompleteStruct", # deprecated + wCompleteStruct = "completeStruct", wRequiresInit = "requiresInit", wAlign = "align", + wNodecl = "nodecl", wPure = "pure", wSideEffect = "sideEffect", wHeader = "header", + wNoSideEffect = "noSideEffect", wGcSafe = "gcsafe", wNoreturn = "noreturn", + wNosinks = "nosinks", wLib = "lib", wDynlib = "dynlib", + wCompilerProc = "compilerproc", wCore = "core", wProcVar = "procvar", + wBase = "base", wUsed = "used", wFatal = "fatal", wError = "error", wWarning = "warning", + wHint = "hint", + wWarningAsError = "warningAsError", + wHintAsError = "hintAsError", + wLine = "line", wPush = "push", + wPop = "pop", wDefine = "define", wUndef = "undef", wLineDir = "lineDir", + wStackTrace = "stackTrace", wLineTrace = "lineTrace", wLink = "link", wCompile = "compile", + wLinksys = "linksys", wDeprecated = "deprecated", wVarargs = "varargs", wCallconv = "callconv", + wDebugger = "debugger", wNimcall = "nimcall", wStdcall = "stdcall", wCdecl = "cdecl", + wSafecall = "safecall", wSyscall = "syscall", wInline = "inline", wNoInline = "noinline", + wFastcall = "fastcall", wThiscall = "thiscall", wClosure = "closure", wNoconv = "noconv", + wOn = "on", wOff = "off", wChecks = "checks", wRangeChecks = "rangeChecks", + wBoundChecks = "boundChecks", wOverflowChecks = "overflowChecks", wNilChecks = "nilChecks", + wFloatChecks = "floatChecks", wNanChecks = "nanChecks", wInfChecks = "infChecks", + wStyleChecks = "styleChecks", wStaticBoundchecks = "staticBoundChecks", + wNonReloadable = "nonReloadable", wExecuteOnReload = "executeOnReload", + + wAssertions = "assertions", wPatterns = "patterns", wTrMacros = "trmacros", + wSinkInference = "sinkInference", wWarnings = "warnings", + wHints = "hints", wOptimization = "optimization", wRaises = "raises", + wWrites = "writes", wReads = "reads", wSize = "size", wEffects = "effects", wTags = "tags", + wForbids = "forbids", wRequires = "requires", wEnsures = "ensures", wInvariant = "invariant", + wAssume = "assume", wAssert = "assert", + wDeadCodeElimUnused = "deadCodeElim", # deprecated, dead code elim always happens + wSafecode = "safecode", wPackage = "package", wNoForward = "noforward", wReorder = "reorder", + wNoRewrite = "norewrite", wNoDestroy = "nodestroy", wPragma = "pragma", + wCompileTime = "compileTime", wNoInit = "noinit", wPassc = "passc", wPassl = "passl", + wLocalPassc = "localPassC", wBorrow = "borrow", wDiscardable = "discardable", + wFieldChecks = "fieldChecks", wSubsChar = "subschar", wAcyclic = "acyclic", + wShallow = "shallow", wUnroll = "unroll", wLinearScanEnd = "linearScanEnd", + wComputedGoto = "computedGoto", wExperimental = "experimental", wDoctype = "doctype", + wWrite = "write", wGensym = "gensym", wInject = "inject", wDirty = "dirty", + wInheritable = "inheritable", wThreadVar = "threadvar", wEmit = "emit", + wAsmNoStackFrame = "asmNoStackFrame", wAsmSyntax = "asmSyntax", wImplicitStatic = "implicitStatic", + wGlobal = "global", wCodegenDecl = "codegenDecl", wUnchecked = "unchecked", + wGuard = "guard", wLocks = "locks", wPartial = "partial", wExplain = "explain", + wLiftLocals = "liftlocals", wEnforceNoRaises = "enforceNoRaises", wSystemRaisesDefect = "systemRaisesDefect", + wRedefine = "redefine", wCallsite = "callsite", + wQuirky = "quirky", + + # codegen keywords, but first the ones that are also pragmas: + wExtern = "extern", wGoto = "goto", wRegister = "register", + wUnion = "union", wPacked = "packed", wVirtual = "virtual", + wVolatile = "volatile", wMember = "member", + wByCopy = "bycopy", wByRef = "byref", + + # codegen keywords but not pragmas: + wAuto = "auto", wBool = "bool", wCatch = "catch", wChar = "char", + wClass = "class", wCompl = "compl", wConstCast = "const_cast", wDefault = "default", + wDelete = "delete", wDouble = "double", wDynamicCast = "dynamic_cast", + wExplicit = "explicit", wFalse = "false", wFloat = "float", + wFriend = "friend", wInt = "int", wLong = "long", wMutable = "mutable", + wNamespace = "namespace", wNew = "new", wOperator = "operator", wPrivate = "private", + wProtected = "protected", wPublic = "public", + wReinterpretCast = "reinterpret_cast", wRestrict = "restrict", wShort = "short", + wSigned = "signed", wSizeof = "sizeof", wStaticCast = "static_cast", wStruct = "struct", + wSwitch = "switch", wThis = "this", wThrow = "throw", wTrue = "true", wTypedef = "typedef", + wTypeid = "typeid", wTypeof = "typeof", wTypename = "typename", + wUnsigned = "unsigned", wVoid = "void", + + wAlignas = "alignas", wAlignof = "alignof", wConstexpr = "constexpr", wDecltype = "decltype", + wNullptr = "nullptr", wNoexcept = "noexcept", + wThreadLocal = "thread_local", wStaticAssert = "static_assert", + wChar16 = "char16_t", wChar32 = "char32_t", wWchar = "wchar_t", + + wStdIn = "stdin", wStdOut = "stdout", wStdErr = "stderr", + + wInOut = "inout", wOneWay = "oneway", + # end of codegen keywords + + wBitsize = "bitsize", wImportHidden = "all", + wSendable = "sendable" + + TSpecialWords* = set[TSpecialWord] + +const + oprLow* = ord(wColon) + oprHigh* = ord(wDotDot) + + nimKeywordsLow* = ord(wAsm) + nimKeywordsHigh* = ord(wYield) + + ccgKeywordsLow* = ord(wExtern) + ccgKeywordsHigh* = ord(wOneWay) + + cppNimSharedKeywords* = { + wAsm, wBreak, wCase, wConst, wContinue, wDo, wElse, wEnum, wExport, + wFor, wIf, wReturn, wStatic, wTemplate, wTry, wWhile, wUsing} + + nonPragmaWordsLow* = wAuto + nonPragmaWordsHigh* = wOneWay + + +from std/enumutils import genEnumCaseStmt +from std/strutils import normalize +proc findStr*[T: enum](a, b: static[T], s: string, default: T): T = + genEnumCaseStmt(T, s, default, ord(a), ord(b), normalize) |