Nim/compiler/wordrecg.nim
metagn 2cca38d33c
pragma for sfCallsite instead of name check + better semantics, test (#20464)
* pragma for sfCallsite instead of name check at every template definition

Not documented because it seems to be for internal use?

Should also make it possible to make comparisons and setops imports, but this doesn't have to be done.

I can reuse a name like `cursor` for the pragma as well, added a new name just to be safe.

* make sfCallsite recursive, add tests
2022-10-03 06:07:55 +02:00

149 lines
8.1 KiB
Nim

#
#
# 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 = "-",
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",
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", wMerge = "merge", 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", wImplicitStatic = "implicitStatic",
wGlobal = "global", wCodegenDecl = "codegenDecl", wUnchecked = "unchecked",
wGuard = "guard", wLocks = "locks", wPartial = "partial", wExplain = "explain",
wLiftLocals = "liftlocals", wEnforceNoRaises = "enforceNoRaises",
wRedefine = "redefine", wCallsite = "callsite",
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", wExtern = "extern", wFalse = "false", wFloat = "float",
wFriend = "friend", wGoto = "goto", wInt = "int", wLong = "long", wMutable = "mutable",
wNamespace = "namespace", wNew = "new", wOperator = "operator", wPrivate = "private",
wProtected = "protected", wPublic = "public", wRegister = "register",
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",
wUnion = "union", wPacked = "packed", wUnsigned = "unsigned", wVirtual = "virtual",
wVoid = "void", wVolatile = "volatile", wWchar = "wchar_t",
wAlignas = "alignas", wAlignof = "alignof", wConstexpr = "constexpr", wDecltype = "decltype",
wNullptr = "nullptr", wNoexcept = "noexcept",
wThreadLocal = "thread_local", wStaticAssert = "static_assert",
wChar16 = "char16_t", wChar32 = "char32_t",
wStdIn = "stdin", wStdOut = "stdout", wStdErr = "stderr",
wInOut = "inout", wByCopy = "bycopy", wByRef = "byref", wOneWay = "oneway",
wBitsize = "bitsize", wImportHidden = "all",
TSpecialWords* = set[TSpecialWord]
const
oprLow* = ord(wColon)
oprHigh* = ord(wDotDot)
nimKeywordsLow* = ord(wAsm)
nimKeywordsHigh* = ord(wYield)
ccgKeywordsLow* = ord(wAuto)
ccgKeywordsHigh* = ord(wOneWay)
cppNimSharedKeywords* = {
wAsm, wBreak, wCase, wConst, wContinue, wDo, wElse, wEnum, wExport,
wFor, wIf, wReturn, wStatic, wTemplate, wTry, wWhile, wUsing}
const enumUtilsExist = compiles:
import std/enumutils
when enumUtilsExist:
from std/enumutils import genEnumCaseStmt
from 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)
else:
from strutils import cmpIgnoreStyle
proc findStr*[T: enum](a, b: static[T], s: string, default: T): T {.deprecated.} =
# used for compiler bootstrapping only
for i in a..b:
if cmpIgnoreStyle($i, s) == 0:
return i
result = default