diff options
Diffstat (limited to 'compiler/ast.nim')
| -rw-r--r-- | compiler/ast.nim | 68 |
1 files changed, 37 insertions, 31 deletions
diff --git a/compiler/ast.nim b/compiler/ast.nim index e8fee6c0d..a342e1ea7 100644 --- a/compiler/ast.nim +++ b/compiler/ast.nim @@ -41,7 +41,7 @@ type TNodeKinds* = set[TNodeKind] type - TSymFlag* = enum # 51 flags! + TSymFlag* = enum # 63 flags! sfUsed, # read access of sym (for warnings) or simply used sfExported, # symbol is exported from module sfFromGeneric, # symbol is instantiation of a generic; this is needed @@ -93,7 +93,7 @@ type sfNamedParamCall, # symbol needs named parameter call syntax in target # language; for interfacing with Objective C sfDiscardable, # returned value may be discarded implicitly - sfOverridden, # proc is overridden + sfOverridden, # proc is overridden sfCallsite # A flag for template symbols to tell the # compiler it should use line information from # the calling side of the macro, not from the @@ -126,24 +126,25 @@ type sfByCopy # param is marked as pass bycopy sfMember # proc is a C++ member of a type sfCodegenDecl # type, proc, global or proc param is marked as codegenDecl + sfWasGenSym # symbol was 'gensym'ed + sfForceLift # variable has to be lifted into closure environment + + sfDirty # template is not hygienic (old styled template) module, + # compiled from a dirty-buffer + sfCustomPragma # symbol is custom pragma template + sfBase, # a base method + sfGoto # var is used for 'goto' code generation + sfAnon, # symbol name that was generated by the compiler + # the compiler will avoid printing such names + # in user messages. + sfAllUntyped # macro or template is immediately expanded in a generic context + sfTemplateRedefinition # symbol is a redefinition of an earlier template TSymFlags* = set[TSymFlag] const sfNoInit* = sfMainModule # don't generate code to init the variable - sfAllUntyped* = sfVolatile # macro or template is immediately expanded \ - # in a generic context - - sfDirty* = sfPure - # template is not hygienic (old styled template) - # module, compiled from a dirty-buffer - - sfAnon* = sfDiscardable - # symbol name that was generated by the compiler - # the compiler will avoid printing such names - # in user messages. - sfNoForward* = sfRegister # forward declarations are not required (per module) sfReorder* = sfForward @@ -152,12 +153,8 @@ const sfCompileToCpp* = sfInfixCall # compile the module as C++ code sfCompileToObjc* = sfNamedParamCall # compile the module as Objective-C code sfExperimental* = sfOverridden # module uses the .experimental switch - sfGoto* = sfOverridden # var is used for 'goto' code generation sfWrittenTo* = sfBorrow # param is assigned to # currently unimplemented - sfBase* = sfDiscriminant - sfCustomPragma* = sfRegister # symbol is custom pragma template - sfTemplateRedefinition* = sfExportc # symbol is a redefinition of an earlier template sfCppMember* = { sfVirtual, sfMember, sfConstructor } # proc is a C++ member, meaning it will be attached to the type definition const @@ -217,7 +214,8 @@ type tyUncheckedArray # An array with boundaries [0,+∞] - tyProxy # used as errornous type (for idetools) + tyError # used as erroneous type (for idetools) + # as an erroneous node should match everything tyBuiltInTypeClass # Type such as the catch-all object, tuple, seq, etc @@ -279,10 +277,6 @@ static: const tyPureObject* = tyTuple GcTypeKinds* = {tyRef, tySequence, tyString} - tyError* = tyProxy # as an errornous node should match everything - tyUnknown* = tyFromExpr - - tyUnknownTypes* = {tyError, tyFromExpr} tyTypeClasses* = {tyBuiltInTypeClass, tyCompositeTypeClass, tyUserTypeClass, tyUserTypeClassInst, @@ -328,7 +322,9 @@ type nfFirstWrite # this node is a first write nfHasComment # node has a comment nfSkipFieldChecking # node skips field visable checking - nfOpenSym # node is a captured sym but can be overriden by local symbols + nfDisabledOpenSym # temporary: node should be nkOpenSym but cannot + # because openSym experimental switch is disabled + # gives warning instead TNodeFlags* = set[TNodeFlag] TTypeFlag* = enum # keep below 32 for efficiency reasons (now: 47) @@ -449,6 +445,8 @@ const tfGcSafe* = tfThread tfObjHasKids* = tfEnumHasHoles tfReturnsNew* = tfInheritable + tfNonConstExpr* = tfExplicitCallConv + ## tyFromExpr where the expression shouldn't be evaluated as a static value skError* = skUnknown var @@ -504,7 +502,7 @@ type mSwap, mIsNil, mArrToSeq, mOpenArrayToSeq, mNewString, mNewStringOfCap, mParseBiggestFloat, mMove, mEnsureMove, mWasMoved, mDup, mDestroy, mTrace, - mDefault, mUnown, mFinished, mIsolate, mAccessEnv, mAccessTypeField, mReset, + mDefault, mUnown, mFinished, mIsolate, mAccessEnv, mAccessTypeField, mArray, mOpenArray, mRange, mSet, mSeq, mVarargs, mRef, mPtr, mVar, mDistinct, mVoid, mTuple, mOrdinal, mIterableType, @@ -654,7 +652,7 @@ type storage*: TStorageLoc flags*: TLocFlags # location's flags lode*: PNode # Node where the location came from; can be faked - r*: Rope # rope value of location (code generators) + snippet*: Rope # C code snippet of location (code generators) # ---------------- end of backend information ------------------------------ @@ -883,7 +881,7 @@ const nfFromTemplate, nfDefaultRefsParam, nfExecuteOnReload, nfLastRead, nfFirstWrite, nfSkipFieldChecking, - nfOpenSym} + nfDisabledOpenSym} namePos* = 0 patternPos* = 1 # empty except for term rewriting macros genericParamsPos* = 2 @@ -897,7 +895,7 @@ const nfAllFieldsSet* = nfBase2 nkIdentKinds* = {nkIdent, nkSym, nkAccQuoted, nkOpenSymChoice, - nkClosedSymChoice} + nkClosedSymChoice, nkOpenSym} nkPragmaCallKinds* = {nkExprColonExpr, nkCall, nkCallStrLit} nkLiterals* = {nkCharLit..nkTripleStrLit} @@ -925,6 +923,7 @@ proc getPIdent*(a: PNode): PIdent {.inline.} = of nkSym: a.sym.name of nkIdent: a.ident of nkOpenSymChoice, nkClosedSymChoice: a.sons[0].sym.name + of nkOpenSym: getPIdent(a.sons[0]) else: nil const @@ -1058,8 +1057,11 @@ proc getDeclPragma*(n: PNode): PNode = proc extractPragma*(s: PSym): PNode = ## gets the pragma node of routine/type/var/let/const symbol `s` - if s.kind in routineKinds: - result = s.ast[pragmasPos] + if s.kind in routineKinds: # bug #24167 + if s.ast[pragmasPos] != nil and s.ast[pragmasPos].kind != nkEmpty: + result = s.ast[pragmasPos] + else: + result = nil elif s.kind in {skType, skVar, skLet, skConst}: if s.ast != nil and s.ast.len > 0: if s.ast[0].kind == nkPragmaExpr and s.ast[0].len > 1: @@ -1285,6 +1287,9 @@ proc newSymNode*(sym: PSym, info: TLineInfo): PNode = result.typ = sym.typ result.info = info +proc newOpenSym*(n: PNode): PNode {.inline.} = + result = newTreeI(nkOpenSym, n.info, n) + proc newIntNode*(kind: TNodeKind, intVal: BiggestInt): PNode = result = newNode(kind) result.intVal = intVal @@ -1509,13 +1514,14 @@ proc newType*(kind: TTypeKind; idgen: IdGenerator; owner: PSym; son: sink PType proc setSons*(dest: PType; sons: sink seq[PType]) {.inline.} = dest.sons = sons proc setSon*(dest: PType; son: sink PType) {.inline.} = dest.sons = @[son] +proc setSonsLen*(dest: PType; len: int) {.inline.} = setLen(dest.sons, len) proc mergeLoc(a: var TLoc, b: TLoc) = if a.k == low(typeof(a.k)): a.k = b.k if a.storage == low(typeof(a.storage)): a.storage = b.storage a.flags.incl b.flags if a.lode == nil: a.lode = b.lode - if a.r == "": a.r = b.r + if a.snippet == "": a.snippet = b.snippet proc newSons*(father: PNode, length: int) = setLen(father.sons, length) |