Nim/compiler/wordrecg.nim
Timothee Cour 66db9de714
CT sizeof(+friends) for {.importc, completeStruct.} types, enable ABI static checks (#13926)
* -d:checkabi obsolete (ABI check now enforced); add `addTypeHeader` helper
* cleanups
* import sizeof at CT for {.completeType.}
* address comments; revert default enabling of -d:checkAbi for now
* mimportc_size_check.nim => msizeof5.nim; merge mabi_check.nim into msizeof5.nim; refactor
* all pragmas in errmsgs should be written: '.importc' (un-ambiguous and less verbose than {.importc.})
2020-04-23 11:24:09 +02:00

221 lines
8.6 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.
from strutils import cmpIgnoreStyle
# Keywords must be kept sorted and within a range
type
TSpecialWord* = enum
wInvalid,
wAddr, wAnd, wAs, wAsm,
wBind, wBlock, wBreak, wCase, wCast, wConcept, wConst,
wContinue, wConverter, wDefer, wDiscard, wDistinct, wDiv, wDo,
wElif, wElse, wEnd, wEnum, wExcept, wExport,
wFinally, wFor, wFrom, wFunc, wIf, wImport, wIn,
wInclude, wInterface, wIs, wIsnot, wIterator, wLet,
wMacro, wMethod, wMixin, wMod, wNil,
wNot, wNotin, wObject, wOf, wOr, wOut, wProc, wPtr, wRaise, wRef, wReturn,
wShl, wShr, wStatic, wTemplate, wTry, wTuple, wType, wUsing, wVar,
wWhen, wWhile, wXor, wYield,
wColon, wColonColon, wEquals, wDot, wDotDot,
wStar, wMinus,
wMagic, wThread, wFinal, wProfiler, wMemTracker, wObjChecks,
wIntDefine, wStrDefine, wBoolDefine, wCursor,
wImmediate, wConstructor, wDestructor, wDelegator, wOverride,
wImportCpp, wImportObjC,
wImportCompilerProc,
wImportc, wImportJs, wExportc, wExportCpp, wExportNims,
wIncompleteStruct, # deprecated
wCompleteStruct,
wRequiresInit,
wAlign, wNodecl, wPure, wSideEffect, wHeader,
wNoSideEffect, wGcSafe, wNoreturn, wNosinks, wMerge, wLib, wDynlib,
wCompilerProc, wCore, wProcVar, wBase, wUsed,
wFatal, wError, wWarning, wHint, wWarningAsError, wLine, wPush, wPop, wDefine, wUndef,
wLineDir, wStackTrace, wLineTrace, wLink, wCompile,
wLinksys, wDeprecated, wVarargs, wCallconv, wDebugger,
wNimcall, wStdcall, wCdecl, wSafecall, wSyscall, wInline, wNoInline,
wFastcall, wClosure, wNoconv, wOn, wOff, wChecks, wRangeChecks,
wBoundChecks, wOverflowChecks, wNilChecks,
wFloatChecks, wNanChecks, wInfChecks, wStyleChecks, wStaticBoundchecks,
wNonReloadable, wExecuteOnReload,
wAssertions, wPatterns, wTrMacros, wSinkInference, wWarnings,
wHints, wOptimization, wRaises, wWrites, wReads, wSize, wEffects, wTags,
wRequires, wEnsures, wInvariant, wAssume, wAssert,
wDeadCodeElimUnused, # deprecated, dead code elim always happens
wSafecode, wPackage, wNoForward, wReorder, wNoRewrite, wNoDestroy,
wPragma,
wCompileTime, wNoInit,
wPassc, wPassl, wLocalPassc, wBorrow, wDiscardable,
wFieldChecks,
wSubsChar, wAcyclic, wShallow, wUnroll, wLinearScanEnd, wComputedGoto,
wInjectStmt, wExperimental,
wWrite, wGensym, wInject, wDirty, wInheritable, wThreadVar, wEmit,
wAsmNoStackFrame,
wImplicitStatic, wGlobal, wCodegenDecl, wUnchecked, wGuard, wLocks,
wPartial, wExplain, wLiftLocals,
wAuto, wBool, wCatch, wChar, wClass, wCompl
wConst_cast, wDefault, wDelete, wDouble, wDynamic_cast,
wExplicit, wExtern, wFalse, wFloat, wFriend,
wGoto, wInt, wLong, wMutable, wNamespace, wNew, wOperator,
wPrivate, wProtected, wPublic, wRegister, wReinterpret_cast, wRestrict,
wShort, wSigned, wSizeof, wStatic_cast, wStruct, wSwitch,
wThis, wThrow, wTrue, wTypedef, wTypeid, wTypeof, wTypename,
wUnion, wPacked, wUnsigned, wVirtual, wVoid, wVolatile, wWchar_t,
wAlignas, wAlignof, wConstexpr, wDecltype, wNullptr, wNoexcept,
wThread_local, wStatic_assert, wChar16_t, wChar32_t,
wStdIn, wStdOut, wStdErr,
wInOut, wByCopy, wByRef, wOneWay,
wBitsize
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}
specialWords*: array[low(TSpecialWord)..high(TSpecialWord), string] = ["",
"addr", "and", "as", "asm",
"bind", "block", "break", "case", "cast",
"concept", "const", "continue", "converter",
"defer", "discard", "distinct", "div", "do",
"elif", "else", "end", "enum", "except", "export",
"finally", "for", "from", "func", "if",
"import", "in", "include", "interface", "is", "isnot", "iterator",
"let",
"macro", "method", "mixin", "mod", "nil", "not", "notin",
"object", "of", "or",
"out", "proc", "ptr", "raise", "ref", "return",
"shl", "shr", "static",
"template", "try", "tuple", "type", "using", "var",
"when", "while", "xor",
"yield",
":", "::", "=", ".", "..",
"*", "-",
"magic", "thread", "final", "profiler", "memtracker", "objchecks",
"intdefine", "strdefine", "booldefine", "cursor",
"immediate", "constructor", "destructor", "delegator", "override",
"importcpp", "importobjc",
"importcompilerproc", "importc", "importjs", "exportc", "exportcpp", "exportnims",
"incompletestruct",
"completestruct",
"requiresinit", "align", "nodecl", "pure", "sideeffect",
"header", "nosideeffect", "gcsafe", "noreturn", "nosinks", "merge", "lib", "dynlib",
"compilerproc", "core", "procvar", "base", "used",
"fatal", "error", "warning", "hint", "warningaserror", "line",
"push", "pop", "define", "undef", "linedir", "stacktrace", "linetrace",
"link", "compile", "linksys", "deprecated", "varargs",
"callconv", "debugger", "nimcall", "stdcall",
"cdecl", "safecall", "syscall", "inline", "noinline", "fastcall", "closure",
"noconv", "on", "off", "checks", "rangechecks", "boundchecks",
"overflowchecks", "nilchecks",
"floatchecks", "nanchecks", "infchecks", "stylechecks", "staticboundchecks",
"nonreloadable", "executeonreload",
"assertions", "patterns", "trmacros", "sinkinference", "warnings", "hints",
"optimization", "raises", "writes", "reads", "size", "effects", "tags",
"requires", "ensures", "invariant", "assume", "assert",
"deadcodeelim", # deprecated, dead code elim always happens
"safecode", "package", "noforward", "reorder", "norewrite", "nodestroy",
"pragma",
"compiletime", "noinit",
"passc", "passl", "localpassc", "borrow", "discardable", "fieldchecks",
"subschar", "acyclic", "shallow", "unroll", "linearscanend",
"computedgoto", "injectstmt", "experimental",
"write", "gensym", "inject", "dirty", "inheritable", "threadvar", "emit",
"asmnostackframe", "implicitstatic", "global", "codegendecl", "unchecked",
"guard", "locks", "partial", "explain", "liftlocals",
"auto", "bool", "catch", "char", "class", "compl",
"const_cast", "default", "delete", "double",
"dynamic_cast", "explicit", "extern", "false",
"float", "friend", "goto", "int", "long", "mutable",
"namespace", "new", "operator",
"private", "protected", "public", "register", "reinterpret_cast", "restrict",
"short", "signed", "sizeof", "static_cast", "struct", "switch",
"this", "throw", "true", "typedef", "typeid", "typeof",
"typename", "union", "packed", "unsigned", "virtual", "void", "volatile",
"wchar_t",
"alignas", "alignof", "constexpr", "decltype", "nullptr", "noexcept",
"thread_local", "static_assert", "char16_t", "char32_t",
"stdin", "stdout", "stderr",
"inout", "bycopy", "byref", "oneway",
"bitsize"
]
proc findStr*(a: openArray[string], s: string): int =
for i in low(a)..high(a):
if cmpIgnoreStyle(a[i], s) == 0:
return i
result = - 1
proc canonPragmaSpelling*(w: TSpecialWord): string =
case w
of wNoSideEffect: "noSideEffect"
of wImportCompilerProc: "importCompilerProc"
of wIncompleteStruct: "incompleteStruct"
of wCompleteStruct: "completeStruct"
of wRequiresInit: "requiresInit"
of wSideEffect: "sideEffect"
of wLineDir: "lineDir"
of wStackTrace: "stackTrace"
of wLineTrace: "lineTrace"
of wRangeChecks: "rangeChecks"
of wBoundChecks: "boundChecks"
of wOverflowChecks: "overflowChecks"
of wNilChecks: "nilChecks"
of wFloatChecks: "floatChecks"
of wNanChecks: "nanChecks"
of wInfChecks: "infChecks"
of wStyleChecks: "styleChecks"
of wNonReloadable: "nonReloadable"
of wExecuteOnReload: "executeOnReload"
of wDeadCodeElimUnused: "deadCodeElim"
of wCompileTime: "compileTime"
of wFieldChecks: "fieldChecks"
of wLinearScanEnd: "linearScanEnd"
of wComputedGoto: "computedGoto"
of wInjectStmt: "injectStmt"
of wAsmNoStackFrame: "asmNoStackFrame"
of wImplicitStatic: "implicitStatic"
of wCodegenDecl: "codegenDecl"
of wLiftLocals: "liftLocals"
of wLocalPassc: "localPassc"
of wWarningAsError: "warningAsError"
else: specialWords[w]