| File: | src/ti_tdn.c |
| Warning: | line 2366, column 2 Value stored to 'ok' is never read |
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| 1 | /**************************************************************************** |
| 2 | * |
| 3 | * ti_tdn.c: Type inference -- top down pass. |
| 4 | * |
| 5 | * Copyright (c) 1990-2007 Aldor Software Organization Ltd (Aldor.org). |
| 6 | * |
| 7 | ***************************************************************************/ |
| 8 | |
| 9 | #include "ablogic.h" |
| 10 | #include "abpretty.h" |
| 11 | #include "comsg.h" |
| 12 | #include "debug.h" |
| 13 | #include "fluid.h" |
| 14 | #include "format.h" |
| 15 | #include "lib.h" |
| 16 | #include "sefo.h" |
| 17 | #include "simpl.h" |
| 18 | #include "spesym.h" |
| 19 | #include "store.h" |
| 20 | #include "stab.h" |
| 21 | #include "terror.h" |
| 22 | #include "tfsat.h" |
| 23 | #include "ti_tdn.h" |
| 24 | #include "tinfer.h" |
| 25 | #include "tposs.h" |
| 26 | #include "util.h" |
| 27 | |
| 28 | |
| 29 | /* |
| 30 | * To do: |
| 31 | * -- titdnApply: Should mark op as erroneous, if necessary. |
| 32 | */ |
| 33 | |
| 34 | /***************************************************************************** |
| 35 | * |
| 36 | * :: Selective debug stuff |
| 37 | * |
| 38 | ****************************************************************************/ |
| 39 | |
| 40 | Bool condApplyDebug = false((int) 0); |
| 41 | Bool tipTdnDebug = false((int) 0); |
| 42 | #define condApplyDEBUGif (!condApplyDebug) { } else afprintf DEBUG_IF(condApply)if (!condApplyDebug) { } else afprintf |
| 43 | #define tipTdnDEBUGif (!tipTdnDebug) { } else afprintf DEBUG_IF(tipTdn)if (!tipTdnDebug) { } else afprintf |
| 44 | |
| 45 | /***************************************************************************** |
| 46 | * |
| 47 | * :: Fluids to unify multiple exit points |
| 48 | * |
| 49 | ****************************************************************************/ |
| 50 | |
| 51 | TForm tuniYieldTForm = 0; |
| 52 | TForm tuniReturnTForm = 0; |
| 53 | TForm tuniExitTForm = 0; |
| 54 | static AbSyn tuniTdnSelectObj = 0; |
| 55 | |
| 56 | /***************************************************************************** |
| 57 | * |
| 58 | * :: Fluids to keep trace of multiple exit points |
| 59 | * |
| 60 | ****************************************************************************/ |
| 61 | |
| 62 | AbSynList abExitsList = 0; |
| 63 | AbSynList abReturnsList = 0; |
| 64 | AbSynList abYieldsList = 0; |
| 65 | |
| 66 | /***************************************************************************** |
| 67 | * |
| 68 | * :: Declarations for top down pass |
| 69 | * |
| 70 | ****************************************************************************/ |
| 71 | |
| 72 | localstatic Bool titdn0Generic (Stab, AbSyn, TForm); |
| 73 | localstatic Bool titdn0FarValue (Stab, AbSyn, TForm, AbSyn,TForm *, |
| 74 | AbSynList *); |
| 75 | localstatic Bool titdn0NoValue (Stab, AbSyn, TForm, Msg); |
| 76 | |
| 77 | localstatic Bool titdn0ApplySymIfNeeded |
| 78 | (Stab, AbSyn, TForm, Symbol, |
| 79 | Length, AbSynGetter, AbSyn, TFormPredicate); |
| 80 | localstatic Bool titdn0ApplySym (Stab, AbSyn, TForm, Symbol, |
| 81 | Length, AbSynGetter, AbSyn); |
| 82 | localstatic Bool titdn0ApplyFType(Stab, AbSyn, TForm, AbSyn, |
| 83 | Length, AbSynGetter); |
| 84 | localstatic Bool titdn0ApplyJoin (Stab, AbSyn, TForm, AbSyn, |
| 85 | Length, AbSynGetter); |
| 86 | |
| 87 | localstatic Bool titdn0PLambdaArgs (Stab, AbSyn); |
| 88 | localstatic Bool titdn0PLambdaRets (Stab, AbSynList); |
| 89 | |
| 90 | localstatic Bool titdnId (Stab, AbSyn, TForm); |
| 91 | localstatic Bool titdn0IdCondition(AbSyn, Syme); |
| 92 | localstatic Bool titdnIdSy (Stab, AbSyn, TForm); |
| 93 | localstatic Bool titdnBlank (Stab, AbSyn, TForm); |
| 94 | localstatic Bool titdnLitInteger (Stab, AbSyn, TForm); |
| 95 | localstatic Bool titdnLitFloat (Stab, AbSyn, TForm); |
| 96 | localstatic Bool titdnLitString (Stab, AbSyn, TForm); |
| 97 | localstatic Bool titdnAdd (Stab, AbSyn, TForm); |
| 98 | localstatic Bool titdnAnd (Stab, AbSyn, TForm); |
| 99 | localstatic Bool titdnApply (Stab, AbSyn, TForm); |
| 100 | localstatic Bool titdnAssert (Stab, AbSyn, TForm); |
| 101 | localstatic Bool titdnAssign (Stab, AbSyn, TForm); |
| 102 | localstatic Bool titdnBreak (Stab, AbSyn, TForm); |
| 103 | localstatic Bool titdnBuiltin (Stab, AbSyn, TForm); |
| 104 | localstatic Bool titdnCoerceTo (Stab, AbSyn, TForm); |
| 105 | localstatic Bool titdnCollect (Stab, AbSyn, TForm); |
| 106 | localstatic Bool titdnComma (Stab, AbSyn, TForm); |
| 107 | localstatic Bool titdnDeclare (Stab, AbSyn, TForm); |
| 108 | localstatic Bool titdnDefault (Stab, AbSyn, TForm); |
| 109 | localstatic Bool titdnDefine (Stab, AbSyn, TForm); |
| 110 | localstatic Bool titdnDelay (Stab, AbSyn, TForm); |
| 111 | localstatic Bool titdnDo (Stab, AbSyn, TForm); |
| 112 | localstatic Bool titdnExcept (Stab, AbSyn, TForm); |
| 113 | localstatic Bool titdnRaise (Stab, AbSyn, TForm); |
| 114 | localstatic Bool titdnExit (Stab, AbSyn, TForm); |
| 115 | localstatic Bool titdnExport (Stab, AbSyn, TForm); |
| 116 | localstatic Bool titdnExtend (Stab, AbSyn, TForm); |
| 117 | localstatic Bool titdnFix (Stab, AbSyn, TForm); |
| 118 | localstatic Bool titdnFluid (Stab, AbSyn, TForm); |
| 119 | localstatic Bool titdnFor (Stab, AbSyn, TForm); |
| 120 | localstatic Bool titdnForeignImport(Stab, AbSyn, TForm); |
| 121 | localstatic Bool titdnForeignExport(Stab, AbSyn, TForm); |
| 122 | localstatic Bool titdnFree (Stab, AbSyn, TForm); |
| 123 | localstatic Bool titdnGenerate (Stab, AbSyn, TForm); |
| 124 | localstatic Bool titdnGoto (Stab, AbSyn, TForm); |
| 125 | localstatic Bool titdnHas (Stab, AbSyn, TForm); |
| 126 | localstatic Bool titdnHide (Stab, AbSyn, TForm); |
| 127 | localstatic Bool titdnIf (Stab, AbSyn, TForm); |
| 128 | localstatic Bool titdnImport (Stab, AbSyn, TForm); |
| 129 | localstatic Bool titdnInline (Stab, AbSyn, TForm); |
| 130 | localstatic Bool titdnIterate (Stab, AbSyn, TForm); |
| 131 | localstatic Bool titdnLabel (Stab, AbSyn, TForm); |
| 132 | localstatic Bool titdnLambda (Stab, AbSyn, TForm); |
| 133 | localstatic Bool titdnLet (Stab, AbSyn, TForm); |
| 134 | localstatic Bool titdnLocal (Stab, AbSyn, TForm); |
| 135 | localstatic Bool titdnMacro (Stab, AbSyn, TForm); |
| 136 | localstatic Bool titdnMLambda (Stab, AbSyn, TForm); |
| 137 | localstatic Bool titdnNever (Stab, AbSyn, TForm); |
| 138 | localstatic Bool titdnNot (Stab, AbSyn, TForm); |
| 139 | localstatic Bool titdnNothing (Stab, AbSyn, TForm); |
| 140 | localstatic Bool titdnOr (Stab, AbSyn, TForm); |
| 141 | localstatic Bool titdnPretendTo (Stab, AbSyn, TForm); |
| 142 | localstatic Bool titdnQualify (Stab, AbSyn, TForm); |
| 143 | localstatic Bool titdnQuote (Stab, AbSyn, TForm); |
| 144 | localstatic Bool titdnReference (Stab, AbSyn, TForm); |
| 145 | localstatic Bool titdnRepeat (Stab, AbSyn, TForm); |
| 146 | localstatic Bool titdnRestrictTo (Stab, AbSyn, TForm); |
| 147 | localstatic Bool titdnReturn (Stab, AbSyn, TForm); |
| 148 | localstatic Bool titdnSelect (Stab, AbSyn, TForm); |
| 149 | localstatic Bool titdnSequence (Stab, AbSyn, TForm); |
| 150 | localstatic Bool titdnSelect (Stab, AbSyn, TForm); |
| 151 | localstatic Bool titdnTest (Stab, AbSyn, TForm); |
| 152 | localstatic Bool titdnTry (Stab, AbSyn, TForm); |
| 153 | localstatic Bool titdnWhere (Stab, AbSyn, TForm); |
| 154 | localstatic Bool titdnWhile (Stab, AbSyn, TForm); |
| 155 | localstatic Bool titdnWith (Stab, AbSyn, TForm); |
| 156 | localstatic Bool titdnYield (Stab, AbSyn, TForm); |
| 157 | |
| 158 | localstatic void titdnError(Stab stab, AbSyn absyn, TForm type); |
| 159 | localstatic void titdn0Error(Stab stab, AbSyn absyn, TForm type); |
| 160 | |
| 161 | localstatic Bool titdnSequence0 (Stab, AbSyn, TForm); |
| 162 | |
| 163 | /***************************************************************************** |
| 164 | * |
| 165 | * :: Top down pass |
| 166 | * |
| 167 | ****************************************************************************/ |
| 168 | |
| 169 | void |
| 170 | tiTopDown(Stab stab, AbSyn absyn, TForm type) |
| 171 | { |
| 172 | Scope("tiTopDown")String scopeName = ("tiTopDown"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 173 | |
| 174 | TForm fluid(tuniReturnTForm)fluidSave_tuniReturnTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniReturnTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniReturnTForm , fluidStack[fluidLevel].size = sizeof(tuniReturnTForm), fluidLevel ++, (tuniReturnTForm) ); |
| 175 | TForm fluid(tuniYieldTForm)fluidSave_tuniYieldTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniYieldTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniYieldTForm , fluidStack[fluidLevel].size = sizeof(tuniYieldTForm), fluidLevel ++, (tuniYieldTForm) ); |
| 176 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 177 | AbLogic fluid(abCondKnown)fluidSave_abCondKnown = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(abCondKnown ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_abCondKnown , fluidStack[fluidLevel].size = sizeof(abCondKnown), fluidLevel ++, (abCondKnown) ); |
| 178 | |
| 179 | tuniReturnTForm = tfNone()tfMulti(0); |
| 180 | tuniYieldTForm = tfNone()tfMulti(0); |
| 181 | tuniExitTForm = tfNone()tfMulti(0); |
| 182 | abCondKnown = abCondKnown ? ablogCopy(abCondKnown) : ablogTrue(); |
| 183 | |
| 184 | titdn(stab, absyn, type); |
| 185 | |
| 186 | ablogFree(abCondKnown); |
| 187 | |
| 188 | ReturnNothing{ fluidUnwind(fluidLevel0, ((int) 0)); return;; }; /* (result); */ |
| 189 | } |
| 190 | |
| 191 | Bool |
| 192 | titdn(Stab stab, AbSyn absyn, TForm type) |
| 193 | { |
| 194 | TPoss abtposs; |
| 195 | static int serialNo = 0, depthNo = 0; |
| 196 | int serialThis; |
| 197 | Bool s = false((int) 0); |
| 198 | TForm stype; |
| 199 | |
| 200 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_HasUnique) |
| 201 | return true1; |
| 202 | |
| 203 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) { |
| 204 | titdnError(stab, absyn, type); |
| 205 | return false((int) 0); |
| 206 | } |
| 207 | |
| 208 | assert(abState(absyn) == AB_State_HasPoss)do { if (!(((absyn)->abHdr.state) == AB_State_HasPoss)) _do_assert (("abState(absyn) == AB_State_HasPoss"),"ti_tdn.c",208); } while (0); |
| 209 | /* MUST use tpossRefer() or abReferTPoss() */ |
| 210 | abtposs = tpossRefer(abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 211 | |
| 212 | if (tpossCount(abtposs) == 0) { |
| 213 | titdnError(stab, absyn, type); |
| 214 | return false((int) 0); |
| 215 | } |
| 216 | |
| 217 | stype = tfFollowSubst(type); |
| 218 | |
| 219 | if (tfIsUnknown(stype)(((stype)->tag) == TF_Unknown) || tfIsNone(stype)((((stype)->tag) == TF_Multiple) && tfMultiArgc(stype ) == 0)) { |
| 220 | if (tpossCount(abtposs) > 1) { |
| 221 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 222 | absyn,type,abtposs); |
| 223 | return false((int) 0); |
| 224 | } |
| 225 | if (tpossCount(abtposs) == 1) |
| 226 | type = tpossUnique(abtposs); |
| 227 | } |
| 228 | |
| 229 | if (!abIsLeaf(absyn)(((absyn)->abHdr.tag) < AB_NODE_START) && abStab(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->stab : 0)) |
| 230 | stab = abStab(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->stab : 0); |
| 231 | |
| 232 | serialNo += 1; |
| 233 | depthNo += 1; |
| 234 | serialThis = serialNo; |
| 235 | if (DEBUG(tipTdn)tipTdnDebug) { |
| 236 | fprintf(dbOut,"->Tdn: %*s%d= ", depthNo, "", serialThis); |
| 237 | abPrettyPrint(dbOut, absyn); |
| 238 | fprintf(dbOut," @ "); |
| 239 | tfPrint(dbOut, type); |
| 240 | fnewline(dbOut); |
| 241 | } |
| 242 | |
| 243 | AB_SWITCH(absyn, s = titdn, (stab, absyn, type))switch (((absyn)->abHdr.tag)) { case AB_Id: s = titdnId (stab , absyn, type); break; case AB_IdSy: s = titdnIdSy (stab, absyn , type); break; case AB_Blank: s = titdnBlank (stab, absyn, type ); break; case AB_LitInteger: s = titdnLitInteger (stab, absyn , type); break; case AB_LitFloat: s = titdnLitFloat (stab, absyn , type); break; case AB_LitString: s = titdnLitString (stab, absyn , type); break; case AB_Add: s = titdnAdd (stab, absyn, type) ; break; case AB_And: s = titdnAnd (stab, absyn, type); break ; case AB_Apply: s = titdnApply (stab, absyn, type); break; case AB_Assert: s = titdnAssert (stab, absyn, type); break; case AB_Assign : s = titdnAssign (stab, absyn, type); break; case AB_Break: s = titdnBreak (stab, absyn, type); break; case AB_Builtin: s = titdnBuiltin (stab, absyn, type); break; case AB_CoerceTo: s = titdnCoerceTo (stab, absyn, type); break; case AB_Collect: s = titdnCollect (stab, absyn, type); break; case AB_Comma: s = titdnComma (stab, absyn, type); break; case AB_Declare: s = titdnDeclare (stab, absyn, type); break; case AB_Default: s = titdnDefault (stab, absyn, type); break; case AB_Define: s = titdnDefine (stab, absyn, type); break; case AB_Delay: s = titdnDelay (stab, absyn, type); break; case AB_Do: s = titdnDo (stab, absyn , type); break; case AB_Except: s = titdnExcept (stab, absyn, type); break; case AB_Raise: s = titdnRaise (stab, absyn, type ); break; case AB_Exit: s = titdnExit (stab, absyn, type); break ; case AB_Export: s = titdnExport (stab, absyn, type); break; case AB_Extend: s = titdnExtend (stab, absyn, type); break; case AB_Fix: s = titdnFix (stab, absyn, type); break; case AB_Fluid : s = titdnFluid (stab, absyn, type); break; case AB_For: s = titdnFor (stab, absyn, type); break; case AB_ForeignImport: s = titdnForeignImport (stab, absyn, type); break; case AB_ForeignExport : s = titdnForeignExport (stab, absyn, type); break; case AB_Free : s = titdnFree (stab, absyn, type); break; case AB_Generate: s = titdnGenerate (stab, absyn, type); break; case AB_Goto: s = titdnGoto (stab, absyn, type); break; case AB_Has: s = titdnHas (stab, absyn, type); break; case AB_Hide: s = titdnHide (stab , absyn, type); break; case AB_If: s = titdnIf (stab, absyn, type ); break; case AB_Import: s = titdnImport (stab, absyn, type) ; break; case AB_Inline: s = titdnInline (stab, absyn, type); break; case AB_Iterate: s = titdnIterate (stab, absyn, type) ; break; case AB_Label: s = titdnLabel (stab, absyn, type); break ; case AB_Lambda: s = titdnLambda (stab, absyn, type); break; case AB_Let: s = titdnLet (stab, absyn, type); break; case AB_Local : s = titdnLocal (stab, absyn, type); break; case AB_Macro: s = titdnMacro (stab, absyn, type); break; case AB_MLambda: s = titdnMLambda (stab, absyn, type); break; case AB_Never: s = titdnNever (stab, absyn, type); break; case AB_Not: s = titdnNot (stab, absyn, type); break; case AB_Nothing: s = titdnNothing (stab , absyn, type); break; case AB_Or: s = titdnOr (stab, absyn, type ); break; case AB_PLambda: s = titdnLambda (stab, absyn, type ); break; case AB_PretendTo: s = titdnPretendTo (stab, absyn, type); break; case AB_Qualify: s = titdnQualify (stab, absyn , type); break; case AB_Quote: s = titdnQuote (stab, absyn, type ); break; case AB_Reference: s = titdnReference (stab, absyn, type); break; case AB_Repeat: s = titdnRepeat (stab, absyn, type ); break; case AB_RestrictTo: s = titdnRestrictTo (stab, absyn , type); break; case AB_Return: s = titdnReturn (stab, absyn, type); break; case AB_Select: s = titdnSelect (stab, absyn, type ); break; case AB_Sequence: s = titdnSequence (stab, absyn, type ); break; case AB_Test: s = titdnTest (stab, absyn, type); break ; case AB_Try: s = titdnTry (stab, absyn, type); break; case AB_Where : s = titdnWhere (stab, absyn, type); break; case AB_While: s = titdnWhile (stab, absyn, type); break; case AB_With: s = titdnWith (stab, absyn, type); break; case AB_Yield: s = titdnYield (stab , absyn, type); break; default: bug("Bad case %d (line %d in file %s)." , (int) ((absyn)->abHdr.tag), 243, "ti_tdn.c"); }; |
| 244 | |
| 245 | if (s) { |
| 246 | /* The callee should have set abTUnique(absyn). */ |
| 247 | assert(abTPoss(absyn) != abtposs)do { if (!(((absyn)->abHdr.type.poss) != abtposs)) _do_assert (("abTPoss(absyn) != abtposs"),"ti_tdn.c",247); } while (0); |
| 248 | |
| 249 | /* All identifiers should have symes. */ |
| 250 | assert(abTag(absyn) != AB_Id || abSyme(absyn))do { if (!(((absyn)->abHdr.tag) != AB_Id || ((absyn)->abHdr .seman ? (absyn)->abHdr.seman->syme : 0))) _do_assert(( "abTag(absyn) != AB_Id || abSyme(absyn)"),"ti_tdn.c",250); } while (0); |
| 251 | |
| 252 | abState(absyn)((absyn)->abHdr.state) = AB_State_HasUnique; |
| 253 | tpossFree(abtposs); |
| 254 | } |
| 255 | else { |
| 256 | /* The callee should not have changed the abState. */ |
| 257 | assert(abState(absyn) == AB_State_HasPoss)do { if (!(((absyn)->abHdr.state) == AB_State_HasPoss)) _do_assert (("abState(absyn) == AB_State_HasPoss"),"ti_tdn.c",257); } while (0); |
| 258 | |
| 259 | /* The caller should not have set abTUnique(absyn). */ |
| 260 | assert(abTPoss(absyn) == abtposs)do { if (!(((absyn)->abHdr.type.poss) == abtposs)) _do_assert (("abTPoss(absyn) == abtposs"),"ti_tdn.c",260); } while (0); |
| 261 | } |
| 262 | |
| 263 | if (DEBUG(tipTdn)tipTdnDebug) { |
| 264 | fprintf(dbOut, "<-Tdn: %*s%d= ", depthNo, "", serialThis); |
| 265 | abPrettyPrint(dbOut, absyn); |
| 266 | fprintf(dbOut, " @ "); |
| 267 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_HasUnique) |
| 268 | tfPrint(dbOut, abTUnique(absyn)((absyn)->abHdr.type.unique)); |
| 269 | else |
| 270 | tfPrint(dbOut, type); |
| 271 | fnewline(dbOut); |
| 272 | } |
| 273 | depthNo -= 1; |
| 274 | return s; |
| 275 | } |
| 276 | |
| 277 | /**************************************************************************** |
| 278 | * |
| 279 | * :: Generic: abArgc(ab), abArgv(ab) |
| 280 | * |
| 281 | ***************************************************************************/ |
| 282 | |
| 283 | localstatic Bool |
| 284 | titdn0Generic(Stab stab, AbSyn absyn, TForm type) |
| 285 | { |
| 286 | Length i; |
| 287 | if (!abIsLeaf(absyn)(((absyn)->abHdr.tag) < AB_NODE_START)) |
| 288 | for (i = 0; i < abArgc(absyn)((absyn)->abHdr.argc); i += 1) |
| 289 | titdn(stab, abArgv(absyn)((absyn)->abGen.data.argv)[i], tfUnknown); |
| 290 | tfFollow(type)((type) = tfFollowFn(type)); |
| 291 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 292 | return true1; |
| 293 | } |
| 294 | |
| 295 | /**************************************************************************** |
| 296 | * |
| 297 | * :: Implied call: apply, set!, test, generator, ... |
| 298 | * |
| 299 | ***************************************************************************/ |
| 300 | |
| 301 | /* |
| 302 | * ab ==> m(i,...) -> tibup0Apply(stab, ab, 'apply, n+1, [m,i,...]) |
| 303 | * ab ==> m(i,...) := x -> tibup0Apply(stab, ab, 'set!, n+2, [m,i,...,x]) |
| 304 | * ab ==> if bb then ... -> tibup0Apply(stab, bb, 'test, 1, [bb.cond]); |
| 305 | * ab ==> for i in l -> tibup0Apply(stab, ab, 'iterator, 1, [l]) |
| 306 | * ab ==> x::T -> tibup0Apply(stab, ab, 'coerce, 1, [x]) |
| 307 | * |
| 308 | * Could also do... |
| 309 | * |
| 310 | * ab ==> 3 -> tibup0Apply(stab, ab, 'integer, 0, []) |
| 311 | * ab ==> "3.14" -> tibup0Apply(stab, ab, 'float, 0, []) |
| 312 | * ab ==> "hello" -> tibup0Apply(stab, ab, 'string, 0, []) |
| 313 | */ |
| 314 | |
| 315 | localstatic Bool |
| 316 | titdn0ApplySymIfNeeded(Stab stab, AbSyn absyn, TForm type, Symbol fsym, |
| 317 | Length argc, AbSynGetter argf, |
| 318 | AbSyn implicitPart, TFormPredicate pred) |
| 319 | { |
| 320 | AbSyn part; |
| 321 | TPoss tp; |
| 322 | |
| 323 | assert(argc == 1)do { if (!(argc == 1)) _do_assert(("argc == 1"),"ti_tdn.c",323 ); } while (0); |
| 324 | |
| 325 | part = argf(absyn, int0((int) 0)); |
| 326 | tp = abReferTPoss(part); |
| 327 | |
| 328 | if (tpossIsHaving(tp, pred) || tpossCount(tp) == 0) |
| 329 | titdn(stab, part, type); |
| 330 | else |
| 331 | return titdn0ApplySym(stab, absyn, type, fsym, argc, argf, |
| 332 | implicitPart); |
| 333 | |
| 334 | tpossFree(tp); |
| 335 | return true1; |
| 336 | } |
| 337 | |
| 338 | localstatic Bool |
| 339 | titdn0ApplySym(Stab stab, AbSyn absyn, TForm type, |
| 340 | Symbol fsym, Length argc, AbSynGetter argf, |
| 341 | AbSyn implicitPart) |
| 342 | { |
| 343 | AbSyn implicitOp; |
| 344 | |
| 345 | if (!implicitPart) implicitPart = absyn; |
| 346 | |
| 347 | /* Get the implicit operation */ |
| 348 | implicitOp = abImplicit(implicitPart)((implicitPart)->abHdr.seman ? (implicitPart)->abHdr.seman ->implicit : 0); |
| 349 | assert(implicitOp)do { if (!(implicitOp)) _do_assert(("implicitOp"),"ti_tdn.c", 349); } while (0); |
| 350 | |
| 351 | return titdn0ApplyFType(stab, absyn, type, implicitOp, argc, argf); |
| 352 | } |
| 353 | |
| 354 | localstatic Bool |
| 355 | titdn0ApplyJoin(Stab stab, AbSyn absyn, TForm type, |
| 356 | AbSyn op, Length argc, AbSynGetter argf) |
| 357 | { |
| 358 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 359 | TForm opType, retType; |
| 360 | |
| 361 | opType = tpossUnique(abTPoss(op)((op)->abHdr.type.poss)); |
| 362 | titdn(stab, op, opType); |
| 363 | assert(abState(op) == AB_State_HasUnique)do { if (!(((op)->abHdr.state) == AB_State_HasUnique)) _do_assert (("abState(op) == AB_State_HasUnique"),"ti_tdn.c",363); } while (0); |
| 364 | abAddTContext(op, tfMapMultiArgEmbed(opType, argc)); |
| 365 | |
| 366 | if (!tpossIsUnique(abtposs)) |
| 367 | return false((int) 0); |
| 368 | |
| 369 | retType = tpossUnique(abtposs); |
| 370 | if (!tfSatValues(retType, type)) |
| 371 | return false((int) 0); |
| 372 | |
| 373 | abTUnique(absyn)((absyn)->abHdr.type.unique) = retType; |
| 374 | return true1; |
| 375 | } |
| 376 | |
| 377 | /* |
| 378 | * Filter the operations based on arg and ret types. |
| 379 | * titdn is applied to the virtual arguments. |
| 380 | */ |
| 381 | |
| 382 | localstatic Bool |
| 383 | titdn0ApplyFType(Stab stab, AbSyn absyn, TForm type, AbSyn op, |
| 384 | Length argc, AbSynGetter argf) |
| 385 | { |
| 386 | SatMask mask = tfSatBupMask(); |
| 387 | Length nopc, popc, parmc; |
| 388 | TForm nopt, popt, opType; |
| 389 | TPoss opTypes, nopTypes; |
| 390 | TPossIterator it; |
| 391 | Bool result; |
| 392 | |
| 393 | opTypes = abTPoss(op)((op)->abHdr.type.poss); |
| 394 | if (abIsTheId(op, ssymJoin)(((op)->abHdr.tag == (AB_Id)) && ((op)->abId.sym )==(ssymJoin)) && tpossIsUnique(opTypes) && |
| 395 | tfSatisfies(tfMapRet(tpossUnique(opTypes))tfFollowArg(tpossUnique(opTypes), 1), tfCategory)) |
| 396 | return titdn0ApplyJoin(stab, absyn, type, op, argc, argf); |
| 397 | |
| 398 | opTypes = abReferTPoss(op); /* Original list of possible types */ |
| 399 | nopTypes = tpossEmpty(); /* Possible (non-pending) types */ |
| 400 | nopc = 0; /* Number of non-pending matches */ |
| 401 | popc = 0; /* Number of all possible matches */ |
| 402 | nopt = tfUnknown; /* Non-pending op type */ |
| 403 | popt = tfUnknown; /* Any possible op type */ |
| 404 | opType = NULL((void*)0); |
| 405 | |
| 406 | /* Filter opTypes based on the argument and return types. */ |
| 407 | for (tpossITER(it, opTypes)((it).possl = (opTypes ? (opTypes)->possl : ((void*)0))); tpossMORE(it)((it).possl); tpossSTEP(it)((it).possl = (((it).possl)->rest))) { |
| 408 | TForm opType = tpossELT(it)tpossELT_(&it); |
| 409 | SatMask result; |
| 410 | |
| 411 | opType = tfDefineeType(opType); |
| 412 | assert(tfIsAnyMap(opType))do { if (!(((((opType)->tag) == TF_Map) || (((opType)-> tag) == TF_PackedMap)))) _do_assert(("tfIsAnyMap(opType)"),"ti_tdn.c" ,412); } while (0); |
| 413 | |
| 414 | result = tfSatMap(mask, stab, opType, type, absyn, argc, argf); |
| 415 | if (tfSatSucceed(result)) { |
| 416 | if (!tfSatPending(result)) { |
| 417 | nopc += 1; |
| 418 | nopt = opType; |
| 419 | nopTypes = tpossAdd1(nopTypes, opType); |
| 420 | } |
| 421 | popc += 1; |
| 422 | popt = opType; |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | if (popc == 1) { |
| 427 | opType = popt; |
| 428 | result = true1; |
| 429 | } |
| 430 | else if (nopc == 1) { |
| 431 | opType = nopt; |
| 432 | result = true1; |
| 433 | } |
| 434 | else if (nopc == 0 && popc > 0) { |
| 435 | terrorApplyNotAnalyzed(absyn, op, popt); |
| 436 | result = false((int) 0); |
| 437 | } |
| 438 | else { |
| 439 | terrorApplyFType(absyn, type, nopTypes, op, stab, argc, argf); |
| 440 | result = false((int) 0); |
| 441 | } |
| 442 | |
| 443 | tpossFree(opTypes); |
| 444 | tpossFree(nopTypes); |
| 445 | |
| 446 | if (!result) return false((int) 0); |
| 447 | |
| 448 | titdn(stab, op, opType); |
| 449 | |
| 450 | parmc = tfMapHasDefaults(opType) ? tfMapArgc(opType) : argc; |
| 451 | abAddTContext(op, tfMapMultiArgEmbed(opType, parmc)); |
| 452 | |
| 453 | mask = tfSatTdnMask(); |
| 454 | result = tfSatMap(mask, stab, opType, type, absyn, argc, argf); |
| 455 | |
| 456 | /* We return false rarely (eg titdn0FarValue failure). */ |
| 457 | return tfSatSucceed(result); |
| 458 | } |
| 459 | |
| 460 | /**************************************************************************** |
| 461 | * |
| 462 | * :: Far Values: return x, yield x, a => x |
| 463 | * |
| 464 | ***************************************************************************/ |
| 465 | |
| 466 | localstatic Bool |
| 467 | titdn0FarValue(Stab stab,AbSyn absyn,TForm type,AbSyn farValue,TForm *pFarType, |
| 468 | AbSynList *pFarAbSynList) |
| 469 | { |
| 470 | AbEmbed embed; |
| 471 | if (DEBUG(tipFar)tipFarDebug) { |
| 472 | fprintf(dbOut, "Computing far value as a "); |
| 473 | tfPrint(dbOut, *pFarType); |
| 474 | fnewline(dbOut); |
| 475 | } |
| 476 | titdn(stab, farValue, *pFarType); |
| 477 | |
| 478 | if (abState(farValue)((farValue)->abHdr.state) != AB_State_HasUnique) |
| 479 | return false((int) 0); |
| 480 | |
| 481 | /* |
| 482 | * Check for `return value' in contexts where no |
| 483 | * value is expected and for `return' in contexts |
| 484 | * where a value _is_ expected. |
| 485 | */ |
| 486 | if (abTag(absyn)((absyn)->abHdr.tag) == AB_Return) |
| 487 | { |
| 488 | Bool abnone = (abTag(farValue)((farValue)->abHdr.tag) == AB_Nothing); |
| 489 | Bool tfnone = tfIsNone(*pFarType)((((*pFarType)->tag) == TF_Multiple) && tfMultiArgc (*pFarType) == 0); |
| 490 | |
| 491 | if (abnone && !tfnone) |
| 492 | comsgError(absyn, ALDOR_E_TinReturnNoVal232); |
| 493 | else if (!abnone && tfnone) |
| 494 | comsgWarning(absyn, ALDOR_W_TinNoValReturn231); |
| 495 | } |
| 496 | |
| 497 | *pFarAbSynList = listCons(AbSyn)(AbSyn_listPointer->Cons)(farValue, *pFarAbSynList); |
| 498 | if (tfIsUnknown(*pFarType)(((*pFarType)->tag) == TF_Unknown)) { |
| 499 | *pFarType = abTUnique(farValue)((farValue)->abHdr.type.unique); |
| 500 | if (DEBUG(tipFar)tipFarDebug) { |
| 501 | fprintf(dbOut, "Converting far value to a "); |
| 502 | tfPrint(dbOut, *pFarType); |
| 503 | fnewline(dbOut); |
| 504 | } |
| 505 | } |
| 506 | |
| 507 | if (abTUnique(farValue)((farValue)->abHdr.type.unique)) { |
| 508 | embed = tfSatEmbedType(abTUnique(farValue)((farValue)->abHdr.type.unique), *pFarType); |
| 509 | if (!tfIsNone(*pFarType)((((*pFarType)->tag) == TF_Multiple) && tfMultiArgc (*pFarType) == 0) && embed != AB_Embed_Identity(((AbEmbed) 1) << 0)) |
| 510 | abAddTContext(farValue, embed); |
| 511 | } |
| 512 | /* Calling program must set abTUnique(absyn). */ |
| 513 | return true1; |
| 514 | } |
| 515 | |
| 516 | /**************************************************************************** |
| 517 | * |
| 518 | * :: No Values: empty sequence, if w/o else, exit. |
| 519 | * |
| 520 | ***************************************************************************/ |
| 521 | |
| 522 | /* |
| 523 | * This function tells the caller whether or not the void type |
| 524 | * () satisfies the type provided. As a side-effect, the absyn |
| 525 | * is given the void type if the type is satisfied otherwise the |
| 526 | * specified error message is generated. |
| 527 | */ |
| 528 | localstatic Bool |
| 529 | titdn0NoValue(Stab stab, AbSyn absyn, TForm type, Msg msg) |
| 530 | { |
| 531 | /* |
| 532 | * If the context requires a value of type () then |
| 533 | * this statement is type correct and has type (). |
| 534 | * |
| 535 | * We used to use tfSatValues(tfNone(), type) but |
| 536 | * this is useless because () satisfies any tuple |
| 537 | * type (it represents the empty tuple). |
| 538 | */ |
| 539 | if (tfIsEmptyMulti(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0)) |
| 540 | { |
| 541 | /* Phew! The types match */ |
| 542 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfNone()tfMulti(0); |
| 543 | return true1; |
| 544 | } |
| 545 | else |
| 546 | { |
| 547 | /* Generate the required error message */ |
| 548 | comsgError(absyn, msg); |
| 549 | return false((int) 0); |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | |
| 554 | /**************************************************************************** |
| 555 | * |
| 556 | * :: Id: x, +, 1 |
| 557 | * X |
| 558 | ***************************************************************************/ |
| 559 | |
| 560 | localstatic Bool |
| 561 | titdnId(Stab stab, AbSyn absyn, TForm type) |
| 562 | { |
| 563 | Syme syme = abSyme(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->syme : 0); |
| 564 | |
| 565 | tipIdDEBUGif (!tipIdDebug) { } else afprintf(dbOut,"Entering titdnId\n"); |
| 566 | |
| 567 | |
| 568 | /* If no meaning yet, find one */ |
| 569 | if (syme == NULL((void*)0)) { |
| 570 | /* |
| 571 | * Use the default type if requested. This may be a |
| 572 | * source of bugs because we don't check conditions. |
| 573 | */ |
| 574 | if (abUse(absyn)((absyn)->abHdr.use) == AB_Use_Default) { |
| 575 | TForm tf = tpossUnique(abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 576 | syme = symeNewLexVar(absyn->abId.sym, tf, car(stab)((stab)->first)); |
| 577 | } |
| 578 | else |
| 579 | syme = tiGetMeaning(stab, absyn, type); |
| 580 | |
| 581 | |
| 582 | /* |
| 583 | * Unfortunately we can't tell if tiGetMeaning() failed |
| 584 | * because there are no symbols of the correct type or |
| 585 | * whether there were some but the conditions were wrong. |
| 586 | */ |
| 587 | if (syme == NULL((void*)0)) return false((int) 0); |
| 588 | } |
| 589 | |
| 590 | |
| 591 | /* Check lazy conditions */ |
| 592 | if (!symeUseIdentifier(absyn, syme)) |
| 593 | comsgError(absyn, ALDOR_E_TinNoMeaningForId156, symeString(syme)((((syme)->id))->str)); |
| 594 | |
| 595 | |
| 596 | /* Check conditions imposed on local exports/constants */ |
| 597 | if (symeIsExport(syme)(((((syme)->kind == SYME_Trigger ? libGetAllSymes((syme)-> lib) : ((void*)0)), (syme))->kind) == SYME_Export) || symeIsLexConst(syme)(((((syme)->kind == SYME_Trigger ? libGetAllSymes((syme)-> lib) : ((void*)0)), (syme))->kind) == SYME_LexConst)) { |
| 598 | Bool important = false((int) 0); |
| 599 | |
| 600 | |
| 601 | /* |
| 602 | * Some usages must be ignored: we don't want to |
| 603 | * complain that the redefinition of a conditional |
| 604 | * export (under a different condition) fails to |
| 605 | * satisfy the original condition! |
| 606 | */ |
| 607 | switch (abUse(absyn)((absyn)->abHdr.use)) { |
| 608 | /* Ignore the following usages */ |
| 609 | case AB_Use_Assign: /* Fall through */ |
| 610 | case AB_Use_Declaration: /* Fall through */ |
| 611 | case AB_Use_Define: /* Fall through */ |
| 612 | case AB_Use_Elided: /* Fall through */ |
| 613 | break; |
| 614 | |
| 615 | /* |
| 616 | * All other usages are important: |
| 617 | * AB_Use_Type: conditional types are evil |
| 618 | * AB_Use_Value: normal usage |
| 619 | * AB_Use_RetValue: normal usage |
| 620 | * AB_Use_NoValue: don't really care |
| 621 | * AB_Use_Label: don't really care |
| 622 | * AB_Use_Default: rarely seen here |
| 623 | * AB_Use_Iterator: never seen here |
| 624 | * AB_Use_Except: not sure |
| 625 | * (unspecified): normal usage |
| 626 | */ |
| 627 | default: important = true1; break; |
| 628 | } |
| 629 | |
| 630 | |
| 631 | /* If important, ensure that the condition is satisfied */ |
| 632 | if (important) titdn0IdCondition(absyn, syme); |
| 633 | } |
| 634 | |
| 635 | |
| 636 | /* Give this leaf some meaning */ |
| 637 | stabSetSyme(stab, absyn, syme, abCondKnown); |
| 638 | abTUnique(absyn)((absyn)->abHdr.type.unique) = symeType(syme); |
| 639 | |
| 640 | |
| 641 | /* We return success even if an error was raised */ |
| 642 | return true1; |
| 643 | } |
| 644 | |
| 645 | localstatic Bool |
| 646 | titdn0IdCondition(AbSyn id, Syme syme) |
| 647 | { |
| 648 | SImpl impl; |
| 649 | AbLogic cond; |
| 650 | |
| 651 | |
| 652 | /* If it has a default implementation let it go */ |
| 653 | if (symeHasDefault(syme)(((((syme)->kind == SYME_Trigger ? libGetAllSymes((syme)-> lib) : ((void*)0)), (syme))->bits) & (0x0080))) return true1; |
| 654 | |
| 655 | |
| 656 | /* Check to see if there are any implementation details. */ |
| 657 | impl = symeImpl(syme)((SImpl) (SYFI_SImpl < (8 * sizeof(int)) && !((((( syme)->kind == SYME_Trigger ? libGetAllSymes((syme)->lib ) : ((void*)0)), (syme))->hasmask) & (1 << (SYFI_SImpl ))) ? (symeFieldInfo[SYFI_SImpl].def) : (((((syme)->kind == SYME_Trigger ? libGetAllSymes((syme)->lib) : ((void*)0)), (syme))->locmask) & (1 << (SYFI_SImpl))) ? (((( ((syme)->kind == SYME_Trigger ? libGetAllSymes((syme)-> lib) : ((void*)0)), (syme))->locmask) & (1 << (SYFI_SImpl ))) ? ((syme)->fieldv)[symeIndex(syme,SYFI_SImpl)] : (symeFieldInfo [SYFI_SImpl].def)) : symeGetFieldFn(syme,SYFI_SImpl))); |
| 658 | |
| 659 | |
| 660 | /* If there aren't any then there are no conditions. */ |
| 661 | if (!impl) return true1; |
| 662 | |
| 663 | |
| 664 | /* At the moment we can only cope with simple conditions */ |
| 665 | if (implTag(impl)((impl)->implGen.hdr.tag) != SIMPL_Cond) return true1; |
| 666 | |
| 667 | |
| 668 | /* Check the implementation condition */ |
| 669 | cond = impl->implCond.cond; |
| 670 | if (ablogImplies(abCondKnown, cond)) return true1; |
| 671 | |
| 672 | |
| 673 | /* Report the error */ |
| 674 | terrorIdCondition(symeType(syme), id, abCondKnown, cond); |
| 675 | return false((int) 0); |
| 676 | } |
| 677 | |
| 678 | |
| 679 | /**************************************************************************** |
| 680 | * |
| 681 | * :: LitInteger: 32 |
| 682 | * :: LitFloat: 4.0 |
| 683 | * :: LitString: "hello" |
| 684 | * X |
| 685 | * !! This stuff could be made to go through ti...0Apply. |
| 686 | ***************************************************************************/ |
| 687 | |
| 688 | localstatic Bool titdn0Literal (Symbol, Stab, AbSyn, TForm); |
| 689 | |
| 690 | /* |
| 691 | * Top down entry points. |
| 692 | */ |
| 693 | |
| 694 | localstatic Bool |
| 695 | titdnLitInteger(Stab stab, AbSyn absyn, TForm tform) |
| 696 | { |
| 697 | return titdn0Literal(ssymTheInteger, stab, absyn, tform); |
| 698 | } |
| 699 | |
| 700 | localstatic Bool |
| 701 | titdnLitFloat(Stab stab, AbSyn absyn, TForm tform) |
| 702 | { |
| 703 | return titdn0Literal(ssymTheFloat, stab, absyn, tform); |
| 704 | } |
| 705 | |
| 706 | localstatic Bool |
| 707 | titdnLitString(Stab stab, AbSyn absyn, TForm tform) |
| 708 | { |
| 709 | return titdn0Literal(ssymTheString, stab, absyn, tform); |
| 710 | } |
| 711 | |
| 712 | /* |
| 713 | * Functions which actually do the work. |
| 714 | */ |
| 715 | |
| 716 | localstatic Bool |
| 717 | titdn0Literal(Symbol sym, Stab stab, AbSyn absyn, TForm type) |
| 718 | { |
| 719 | SatMask mask = tfSatBupMask(), result; |
| 720 | Syme syme = abSyme(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->syme : 0); |
| 721 | TForm retType = tfUnknown; |
| 722 | |
| 723 | if (syme) { |
| 724 | assert(tfIsLitOpType(symeType(syme)))do { if (!(tfIsLitOpType(symeType(syme)))) _do_assert(("tfIsLitOpType(symeType(syme))" ),"ti_tdn.c",724); } while (0); |
| 725 | retType = tfMapRet(symeType(syme))tfFollowArg(symeType(syme), 1); |
| 726 | } |
| 727 | else { |
| 728 | SymeList ml0, ml, okSymes = listNil(Syme)((SymeList) 0); |
| 729 | int n; |
| 730 | |
| 731 | ml0 = stabGetMeanings(stab, abCondKnown, sym); |
| 732 | |
| 733 | for (n = 0, ml = ml0; ml; ml = cdr(ml)((ml)->rest)) { |
| 734 | TForm tf = symeType(car(ml)((ml)->first)); |
| 735 | |
| 736 | tfFollow(tf)((tf) = tfFollowFn(tf)); |
| 737 | if (!tfIsLitOpType(tf)) continue; |
| 738 | |
| 739 | result = tfSat(mask, tfMapRet(tf)tfFollowArg(tf, 1), type); |
| 740 | if (tfSatPending(result) && cdr(ml0)((ml0)->rest)) { |
| 741 | terrorApplyNotAnalyzed(absyn, absyn, tf); |
| 742 | return false((int) 0); |
| 743 | } |
| 744 | if (tfSatSucceed(result)) { |
| 745 | if (n) |
| 746 | okSymes= listCons(Syme)(Syme_listPointer->Cons)(syme, okSymes); |
| 747 | |
| 748 | syme = car(ml)((ml)->first); |
| 749 | retType = tfMapRet(tf)tfFollowArg(tf, 1); |
| 750 | if (!symeUseIdentifier(absyn, syme)) |
| 751 | comsgError(absyn, |
| 752 | ALDOR_E_TinNoMeaningForLit157, |
| 753 | symString(sym)((sym)->str), |
| 754 | absyn->abLitString.str); |
| 755 | n++; |
| 756 | } |
| 757 | } |
| 758 | if (n != 1) { |
| 759 | if (n) okSymes = listCons(Syme)(Syme_listPointer->Cons)(syme, okSymes); |
| 760 | terrorNotUniqueMeaning(ALDOR_E_TinNMeanings165, |
| 761 | absyn, okSymes, ml0, |
| 762 | abLeafStr(absyn)((absyn)->abGen.data.str), type); |
| 763 | listFree(Syme)(Syme_listPointer->Free)(okSymes); |
| 764 | return false((int) 0); |
| 765 | } |
| 766 | } |
| 767 | |
| 768 | mask = tfSatTdnMask(); |
| 769 | tfSat(mask, retType, type); |
| 770 | |
| 771 | abTUnique(absyn)((absyn)->abHdr.type.unique) = retType; |
| 772 | stabSetSyme(stab, absyn, syme, abCondKnown); |
| 773 | |
| 774 | return true1; |
| 775 | } |
| 776 | |
| 777 | /*************************************************************************** |
| 778 | * |
| 779 | * :: Comma: (a, b) |
| 780 | * |
| 781 | ***************************************************************************/ |
| 782 | |
| 783 | localstatic Bool |
| 784 | titdnComma(Stab stab, AbSyn absyn, TForm type) |
| 785 | { |
| 786 | AbSyn *argv = abArgv(absyn)((absyn)->abGen.data.argv); |
| 787 | Length i, argc = abArgc(absyn)((absyn)->abHdr.argc); |
| 788 | Length n = 0; |
| 789 | TPoss tp = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 790 | TPossIterator it; |
| 791 | TForm rtype = NULL((void*)0); |
| 792 | AbEmbed embed; |
| 793 | |
| 794 | if (abUse(absyn)((absyn)->abHdr.use) == AB_Use_Declaration || |
| 795 | abUse(absyn)((absyn)->abHdr.use) == AB_Use_Default) { |
| 796 | for (i = 0; i < argc; i++) |
| 797 | titdn(stab, argv[i], tfUnknown); |
| 798 | rtype = type; |
| 799 | } |
| 800 | else { |
| 801 | for (tpossITER(it,tp)((it).possl = (tp ? (tp)->possl : ((void*)0))); tpossMORE(it)((it).possl); tpossSTEP(it)((it).possl = (((it).possl)->rest))) { |
| 802 | TForm tt = tpossELT(it)tpossELT_(&it); |
| 803 | if (tfSatReturn(tt, type)) { |
| 804 | n++; |
| 805 | rtype = tt; |
| 806 | } |
| 807 | } |
| 808 | if (n != 1) { |
| 809 | /* Note we haven't done titdn on descendents. */ |
| 810 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, absyn, type, tp); |
| 811 | return false((int) 0); |
| 812 | } |
| 813 | for (i = 0; i < argc; i++) { |
| 814 | TForm rti = tfMultiArgN(rtype,i)tfFollowArg(rtype, i); |
| 815 | if (tfIsTypeTuple(type)) rti = tfType; |
| 816 | titdn(stab, argv[i], rti); |
| 817 | } |
| 818 | embed = tfSatEmbedType(rtype, type); |
| 819 | if (!tfIsNone(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0) && embed != AB_Embed_Identity(((AbEmbed) 1) << 0)) |
| 820 | abAddTContext(absyn, embed); |
| 821 | } |
| 822 | |
| 823 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 824 | return true1; |
| 825 | } |
| 826 | |
| 827 | /**************************************************************************** |
| 828 | * |
| 829 | * :: Apply: f(a, b, ...) |
| 830 | * |
| 831 | ***************************************************************************/ |
| 832 | |
| 833 | localstatic Bool |
| 834 | titdnApply(Stab stab, AbSyn absyn, TForm type) |
| 835 | { |
| 836 | SatMask mask = tfSatBupMask(); |
| 837 | AbSyn op = abApplyOp(absyn)((absyn)->abApply.op); |
| 838 | TPoss opTypes, nopTypes; |
| 839 | TPossIterator it; |
| 840 | Bool isImplicit = false((int) 0); |
| 841 | Length nopc, popc, parmc; |
| 842 | TForm nopt, popt, opType; |
| 843 | Bool result; |
| 844 | if (abState(op)((op)->abHdr.state) == AB_State_Error) |
| 845 | return false((int) 0); |
| 846 | |
| 847 | nopc = 0; /* Number of non-pending matches */ |
| 848 | popc = 0; /* Number of all possible matches */ |
| 849 | nopt = tfUnknown; /* Non-pending op type */ |
| 850 | popt = tfUnknown; /* Any possible op type */ |
| 851 | opType = NULL((void*)0); |
| 852 | |
| 853 | opTypes = abReferTPoss(op); |
| 854 | nopTypes = tpossEmpty(); |
| 855 | if (abIsTheId(op, ssymJoin)(((op)->abHdr.tag == (AB_Id)) && ((op)->abId.sym )==(ssymJoin)) && tpossIsUnique(opTypes) && |
| 856 | tfSatisfies(tfMapRet(tpossUnique(opTypes))tfFollowArg(tpossUnique(opTypes), 1), tfCategory)) |
| 857 | return titdn0ApplyJoin(stab, absyn, type, op, abArgc(absyn)((absyn)->abHdr.argc), abApplyArgf); |
| 858 | |
| 859 | /* At this point, the mapping is either in the implicit part, |
| 860 | * or in the operator position. Let's look at the operator |
| 861 | * first. |
| 862 | */ |
| 863 | for (tpossITER(it, opTypes)((it).possl = (opTypes ? (opTypes)->possl : ((void*)0))); tpossMORE(it)((it).possl); tpossSTEP(it)((it).possl = (((it).possl)->rest))) { |
| 864 | TForm opType = tpossELT(it)tpossELT_(&it); |
| 865 | SatMask result; |
| 866 | |
| 867 | opType = tfDefineeType(opType); |
| 868 | if (!tfIsAnyMap(opType)((((opType)->tag) == TF_Map) || (((opType)->tag) == TF_PackedMap ))) |
| 869 | continue; |
| 870 | |
| 871 | result = tfSatMap(mask, stab, opType, type, absyn, abApplyArgc(absyn)(((absyn)->abHdr.argc)-1), abApplyArgf); |
| 872 | if (tfSatSucceed(result)) { |
| 873 | if (!tfSatPending(result)) { |
| 874 | nopc += 1; |
| 875 | nopt = opType; |
| 876 | nopTypes = tpossAdd1(nopTypes, opType); |
| 877 | } |
| 878 | popc += 1; |
| 879 | popt = opType; |
| 880 | } |
| 881 | } |
| 882 | /* And now the implicit part */ |
| 883 | if (abImplicit(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->implicit : 0) != NULL((void*)0)) { |
| 884 | AbSyn implicitApply = abImplicit(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->implicit : 0); |
| 885 | TPoss implicitOpTypes = abTPoss(implicitApply)((implicitApply)->abHdr.type.poss); |
| 886 | isImplicit = true1; |
| 887 | for (tpossITER(it, implicitOpTypes)((it).possl = (implicitOpTypes ? (implicitOpTypes)->possl : ((void*)0))); tpossMORE(it)((it).possl); tpossSTEP(it)((it).possl = (((it).possl)->rest))) { |
| 888 | TForm opType = tpossELT(it)tpossELT_(&it); |
| 889 | SatMask result; |
| 890 | |
| 891 | opType = tfDefineeType(opType); |
| 892 | assert(tfIsAnyMap(opType))do { if (!(((((opType)->tag) == TF_Map) || (((opType)-> tag) == TF_PackedMap)))) _do_assert(("tfIsAnyMap(opType)"),"ti_tdn.c" ,892); } while (0); |
| 893 | |
| 894 | result = tfSatMap(mask, stab, opType, type, absyn, abArgc(absyn)((absyn)->abHdr.argc), abArgf); |
| 895 | if (tfSatSucceed(result)) { |
| 896 | if (!tfSatPending(result)) { |
| 897 | nopc += 1; |
| 898 | nopt = opType; |
| 899 | nopTypes = tpossAdd1(nopTypes, opType); |
| 900 | } |
| 901 | popc += 1; |
| 902 | popt = opType; |
| 903 | } |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | if (popc == 1) { |
| 908 | /* We found one thing.. must be this one */ |
| 909 | opType = popt; |
| 910 | result = true1; |
| 911 | } |
| 912 | else if (nopc == 1) { |
| 913 | /* We found one non-pending one, and possibly some others. Let's use it */ |
| 914 | opType = nopt; |
| 915 | result = true1; |
| 916 | } |
| 917 | else if (nopc == 0 && popc > 0) { |
| 918 | /* All pending, and more than one of them. Error - not analyzed */ |
| 919 | terrorApplyNotAnalyzed(absyn, op, popt); |
| 920 | result = false((int) 0); |
| 921 | } |
| 922 | else { |
| 923 | /* Anything else - error */ |
| 924 | terrorApplyFType(absyn, type, nopTypes, op, stab, abApplyArgc(absyn)(((absyn)->abHdr.argc)-1), abApplyArgf); |
| 925 | result = false((int) 0); |
| 926 | } |
| 927 | |
| 928 | tpossFree(opTypes); |
| 929 | tpossFree(nopTypes); |
| 930 | |
| 931 | if (!result) return false((int) 0); |
| 932 | |
| 933 | if (isImplicit) { |
| 934 | AbSyn imp = abImplicit(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->implicit : 0); |
| 935 | int parmc; |
| 936 | titdn(stab, imp, opType); |
| 937 | |
| 938 | parmc = tfMapHasDefaults(opType) ? tfMapArgc(opType) : abArgc(absyn)((absyn)->abHdr.argc); |
| 939 | abAddTContext(imp, tfMapMultiArgEmbed(opType, parmc)); |
| 940 | |
| 941 | mask = tfSatTdnMask(); |
| 942 | result = tfSatMap(mask, stab, opType, type, absyn, abArgc(absyn)((absyn)->abHdr.argc), abArgf); |
| 943 | } |
| 944 | else { |
| 945 | int parmc; |
| 946 | abFree(abImplicit(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->implicit : 0)); |
| 947 | abSetImplicit(absyn, NULL((void*)0)); |
| 948 | titdn(stab, op, opType); |
| 949 | |
| 950 | parmc = tfMapHasDefaults(opType) ? tfMapArgc(opType) : abApplyArgc(absyn)(((absyn)->abHdr.argc)-1); |
| 951 | abAddTContext(op, tfMapMultiArgEmbed(opType, parmc)); |
| 952 | |
| 953 | mask = tfSatTdnMask(); |
| 954 | result = tfSatMap(mask, stab, opType, type, absyn, abApplyArgc(absyn)(((absyn)->abHdr.argc)-1), abApplyArgf); |
| 955 | } |
| 956 | /* We return false rarely (eg titdn0FarValue failure). */ |
| 957 | return tfSatSucceed(result); |
| 958 | } |
| 959 | |
| 960 | |
| 961 | |
| 962 | /**************************************************************************** |
| 963 | * |
| 964 | * :: Define: a == e |
| 965 | * X |
| 966 | ***************************************************************************/ |
| 967 | |
| 968 | localstatic Bool |
| 969 | titdnDefine(Stab stab, AbSyn absyn, TForm type) |
| 970 | { |
| 971 | AbSyn lhs = absyn->abDefine.lhs; |
| 972 | AbSyn rhs = absyn->abDefine.rhs; |
| 973 | TForm rtype, ltype, idtype; |
| 974 | TPoss idtposs; |
| 975 | |
| 976 | if (tfIsNone(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0)) type = tfUnknown; |
| 977 | |
| 978 | idtype = tiDefineFilter(absyn, type); |
| 979 | idtposs = tiDefineTPoss(absyn); |
| 980 | |
| 981 | rtype = tpossSelectSatisfier(idtposs, idtype); |
| 982 | if (!rtype) { |
| 983 | terrorNotUniqueType(ALDOR_E_TinDefnMeans161, absyn, idtype, idtposs); |
| 984 | return false((int) 0); |
| 985 | } |
| 986 | |
| 987 | /* If the r.h. type satisfies the constraint, relax on the l.h. */ |
| 988 | if (abState(lhs)((lhs)->abHdr.state) == AB_State_HasUnique && |
| 989 | tfSatValues(abTUnique(lhs)((lhs)->abHdr.type.unique), rtype)) |
| 990 | ltype = abTUnique(lhs)((lhs)->abHdr.type.unique); |
| 991 | else { |
| 992 | assert(abState(lhs) == AB_State_HasPoss)do { if (!(((lhs)->abHdr.state) == AB_State_HasPoss)) _do_assert (("abState(lhs) == AB_State_HasPoss"),"ti_tdn.c",992); } while (0); |
| 993 | if (tpossIsUnique(abTPoss(lhs)((lhs)->abHdr.type.poss)) && |
| 994 | tfSatValues(tpossUnique(abTPoss(lhs)((lhs)->abHdr.type.poss)), rtype)) |
| 995 | ltype = tpossUnique(abTPoss(lhs)((lhs)->abHdr.type.poss)); |
| 996 | else |
| 997 | ltype = rtype; |
| 998 | } |
| 999 | |
| 1000 | if (DEBUG(tipDefine)tipDefineDebug) { |
| 1001 | fprintf(dbOut, "************** Defining: "); |
| 1002 | abPrettyPrint(dbOut, lhs); |
| 1003 | fnewline(dbOut); |
| 1004 | } |
| 1005 | |
| 1006 | titdn(stab, lhs, ltype); |
| 1007 | titdn(stab, rhs, rtype); |
| 1008 | |
| 1009 | if (abTag(lhs)((lhs)->abHdr.tag) == AB_Declare) { |
| 1010 | rtype = tpossSelectSatisfier(abTPoss(absyn)((absyn)->abHdr.type.poss), type); |
| 1011 | if (!rtype) { |
| 1012 | terrorNotUniqueType(ALDOR_E_TinDefnMeans161, absyn, |
| 1013 | type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 1014 | return false((int) 0); |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | |
| 1019 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 1020 | |
| 1021 | if (DEBUG(tipDefine)tipDefineDebug) { |
| 1022 | fprintf(dbOut,"Tdn: Define of "); |
| 1023 | abPrint(dbOut, lhs); |
| 1024 | fprintf(dbOut," has type "); |
| 1025 | tfPrint(dbOut, rtype); |
| 1026 | fnewline(dbOut); |
| 1027 | } |
| 1028 | return true1; |
| 1029 | } |
| 1030 | |
| 1031 | /**************************************************************************** |
| 1032 | * |
| 1033 | * :: Assign: a := e |
| 1034 | * X |
| 1035 | ***************************************************************************/ |
| 1036 | |
| 1037 | /*!! To do: (v.i,v.j) := (v.j, v.i) */ |
| 1038 | |
| 1039 | localstatic Bool |
| 1040 | titdnAssign(Stab stab, AbSyn absyn, TForm type) |
| 1041 | { |
| 1042 | AbSyn rhs = absyn->abAssign.rhs; |
| 1043 | AbSyn lhs = absyn->abAssign.lhs; |
| 1044 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 1045 | TForm rtype; |
| 1046 | AbEmbed embed; |
| 1047 | |
| 1048 | if (tfIsNone(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0)) type = tfUnknown; |
| 1049 | rtype = tpossSelectSatisfier(abtposs, type); |
| 1050 | if (!rtype) { |
| 1051 | terrorNotUniqueType(ALDOR_E_TinAssMeans160, absyn, type, abtposs); |
| 1052 | return false((int) 0); |
| 1053 | } |
| 1054 | |
| 1055 | if (abTag(lhs)((lhs)->abHdr.tag) == AB_Apply) |
| 1056 | return titdn0ApplySym(stab, absyn, rtype, ssymSetBang, |
| 1057 | abArgc(lhs)((lhs)->abHdr.argc) + 1, abSetArgf, lhs); |
| 1058 | |
| 1059 | titdn(stab, rhs, rtype); |
| 1060 | titdn(stab, lhs, rtype); |
| 1061 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 1062 | |
| 1063 | embed = tfSatEmbedType(abTUnique(rhs)((rhs)->abHdr.type.unique), rtype); |
| 1064 | if (!tfIsNone(rtype)((((rtype)->tag) == TF_Multiple) && tfMultiArgc(rtype ) == 0) && embed != AB_Embed_Identity(((AbEmbed) 1) << 0)) |
| 1065 | abAddTContext(rhs, embed); |
| 1066 | |
| 1067 | |
| 1068 | if (DEBUG(tipAssign)tipAssignDebug) { |
| 1069 | fprintf(dbOut,"Tdn: Assignment to "); |
| 1070 | abPrint(dbOut, lhs); |
| 1071 | fprintf(dbOut," has type "); |
| 1072 | tfPrint(dbOut, rtype); |
| 1073 | fnewline(dbOut); |
| 1074 | } |
| 1075 | return true1; |
| 1076 | } |
| 1077 | |
| 1078 | /**************************************************************************** |
| 1079 | * |
| 1080 | * :: Declare: a: A |
| 1081 | * |
| 1082 | ***************************************************************************/ |
| 1083 | |
| 1084 | localstatic Bool |
| 1085 | titdnDeclare(Stab stab, AbSyn absyn, TForm type) |
| 1086 | { |
| 1087 | AbSyn id = absyn->abDeclare.id; |
| 1088 | AbSyn idtype = absyn->abDeclare.type; |
| 1089 | TForm tf, rtype; |
| 1090 | Syme syme; |
| 1091 | |
| 1092 | if (DEBUG(tipDeclare)tipDeclareDebug) { |
| 1093 | fprintf(dbOut, "In the declaration "); |
| 1094 | abPrettyPrint(dbOut, absyn); |
| 1095 | fprintf(dbOut, ", the semantics field is "); |
| 1096 | if (abTForm(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->tform : 0)) |
| 1097 | tfPrint(dbOut, abTForm(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->tform : 0)); |
| 1098 | else |
| 1099 | fprintf(dbOut, "_"); |
| 1100 | fnewline(dbOut); |
| 1101 | } |
| 1102 | |
| 1103 | if (abUse(absyn)((absyn)->abHdr.use) == AB_Use_Define || abUse(absyn)((absyn)->abHdr.use) == AB_Use_Assign) |
| 1104 | tf = (tfIsUnknown(type)(((type)->tag) == TF_Unknown) ? tiGetTForm(stab, idtype) : type); |
| 1105 | else |
| 1106 | tf = tiGetTForm(stab, idtype); |
| 1107 | |
| 1108 | /* Prevent stabUseMeaning during titdn(stab, id, tf) */ |
| 1109 | if (abUse(absyn)((absyn)->abHdr.use) != AB_Use_Assign) stabUseMeaningShadow(id); |
| 1110 | |
| 1111 | syme = abSyme(id)((id)->abHdr.seman ? (id)->abHdr.seman->syme : 0); |
| 1112 | if (syme && tfIsMulti(type)(((type)->tag) == TF_Multiple)) { |
| 1113 | comsgError(absyn, ALDOR_E_TinBadDeclare158); |
| 1114 | return false((int) 0); |
| 1115 | } |
| 1116 | |
| 1117 | titdn(stab, id, tf); |
| 1118 | stabUseMeaningUnshadow(); |
| 1119 | |
| 1120 | /* idtype has been handled already. */ |
| 1121 | |
| 1122 | rtype = tpossSelectSatisfier(abTPoss(absyn)((absyn)->abHdr.type.poss), type); |
| 1123 | if (!rtype) rtype = tfUnknown; |
| 1124 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 1125 | |
| 1126 | if (DEBUG(tipDeclare)tipDeclareDebug) { |
| 1127 | fprintf(dbOut,"Tdn: Declare of "); |
| 1128 | abPrint(dbOut, id); |
| 1129 | fprintf(dbOut," has type "); |
| 1130 | tfPrint(dbOut, rtype); |
| 1131 | fnewline(dbOut); |
| 1132 | } |
| 1133 | return true1; |
| 1134 | } |
| 1135 | |
| 1136 | /**************************************************************************** |
| 1137 | * |
| 1138 | * :: Label: @@ x @@ [e] |
| 1139 | * |
| 1140 | ***************************************************************************/ |
| 1141 | |
| 1142 | localstatic Bool |
| 1143 | titdnLabel(Stab stab, AbSyn absyn, TForm type) |
| 1144 | { |
| 1145 | AbSyn expr = absyn->abLabel.expr; |
| 1146 | |
| 1147 | if (titdn(stab, expr, type)) |
| 1148 | abTUnique(absyn)((absyn)->abHdr.type.unique) = abTUnique(expr)((expr)->abHdr.type.unique); |
| 1149 | else |
| 1150 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfUnknown; |
| 1151 | |
| 1152 | return true1; |
| 1153 | } |
| 1154 | |
| 1155 | /**************************************************************************** |
| 1156 | * |
| 1157 | * :: Goto: goto id |
| 1158 | * |
| 1159 | ***************************************************************************/ |
| 1160 | |
| 1161 | localstatic Bool |
| 1162 | titdnGoto(Stab stab, AbSyn absyn, TForm type) |
| 1163 | { |
| 1164 | AbSyn label = absyn->abGoto.label; |
| 1165 | |
| 1166 | if (stabLabelExistsInThisStab(stab, abIdSym(label)((label)->abId.sym))) { |
| 1167 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1168 | return true1; |
| 1169 | } |
| 1170 | else { |
| 1171 | AbSynList abl = stabGetLabels(stab, abIdSym(label)((label)->abId.sym)); |
| 1172 | while (abl) { |
| 1173 | AbSyn label = car(abl)((abl)->first); |
| 1174 | Syme syme = label->abHdr.seman->syme; |
| 1175 | ULong labelLamLev = symeDefLambdaLevelNo(syme)(symeDefLevel(syme)->lambdaLevel); |
| 1176 | ULong labelLexLev = symeDefLevelNo(syme)(symeDefLevel(syme)->lexicalLevel); |
| 1177 | ULong gotoLamLev = stabLambdaLevelNo(stab)(((stab)->first)->lambdaLevel); |
| 1178 | ULong gotoLexLev = stabLevelNo(stab)(((stab)->first)->lexicalLevel); |
| 1179 | |
| 1180 | if (labelLamLev == gotoLamLev && labelLexLev <= gotoLexLev) { |
| 1181 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1182 | return true1; |
| 1183 | } |
| 1184 | abl = cdr(abl)((abl)->rest); |
| 1185 | } |
| 1186 | |
| 1187 | comsgError(absyn->abGoto.label, ALDOR_E_TinFarGoto167); |
| 1188 | return false((int) 0); |
| 1189 | } |
| 1190 | } |
| 1191 | |
| 1192 | /**************************************************************************** |
| 1193 | * |
| 1194 | * :: Lambda: (a: A): B +-> b |
| 1195 | * :: PLambda: (a: A): B +->* b |
| 1196 | * |
| 1197 | ***************************************************************************/ |
| 1198 | |
| 1199 | localstatic Bool |
| 1200 | titdnLambda(Stab stab, AbSyn absyn, TForm type) |
| 1201 | { |
| 1202 | Scope("titdnLambda")String scopeName = ("titdnLambda"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 1203 | AbSyn param = absyn->abLambda.param; |
| 1204 | AbSyn body = absyn->abLambda.body; |
| 1205 | AbSyn ret = absyn->abLambda.rtype; |
| 1206 | TPoss abtposs; |
| 1207 | TForm rtype; |
| 1208 | Bool result = true1; |
| 1209 | |
| 1210 | TForm fluid(tuniReturnTForm)fluidSave_tuniReturnTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniReturnTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniReturnTForm , fluidStack[fluidLevel].size = sizeof(tuniReturnTForm), fluidLevel ++, (tuniReturnTForm) ); |
| 1211 | TForm fluid(tuniYieldTForm)fluidSave_tuniYieldTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniYieldTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniYieldTForm , fluidStack[fluidLevel].size = sizeof(tuniYieldTForm), fluidLevel ++, (tuniYieldTForm) ); |
| 1212 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 1213 | AbSynList fluid(abReturnsList)fluidSave_abReturnsList = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(abReturnsList ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_abReturnsList , fluidStack[fluidLevel].size = sizeof(abReturnsList), fluidLevel ++, (abReturnsList) ); |
| 1214 | |
| 1215 | tuniReturnTForm = tfNone()tfMulti(0); |
| 1216 | tuniYieldTForm = tfNone()tfMulti(0); |
| 1217 | tuniExitTForm = tfNone()tfMulti(0); |
| 1218 | abReturnsList = listNil(AbSyn)((AbSynList) 0); |
| 1219 | |
| 1220 | tuniReturnTForm = tfFullFrAbSyn(stab, ret); |
| 1221 | |
| 1222 | titdn(stab, param, tfUnknown); |
| 1223 | titdn(stab, body, tuniReturnTForm); |
| 1224 | |
| 1225 | abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 1226 | if (tiCheckLambdaType(type) || !tfIsAnyMap(type)((((type)->tag) == TF_Map) || (((type)->tag) == TF_PackedMap ))) |
| 1227 | rtype = tpossSelectSatisfier(abtposs, type); |
| 1228 | else |
| 1229 | rtype = type; |
| 1230 | |
| 1231 | if (!rtype) { |
| 1232 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, absyn, type, abtposs); |
| 1233 | result = false((int) 0); |
| 1234 | } |
| 1235 | |
| 1236 | else if (abHasTag(absyn, AB_PLambda)((absyn)->abHdr.tag == (AB_PLambda))) { |
| 1237 | Bool tres; |
| 1238 | |
| 1239 | while (abTag(body)((body)->abHdr.tag) == AB_Label) |
| 1240 | body = body->abLabel.expr; |
| 1241 | abReturnsList = listCons(AbSyn)(AbSyn_listPointer->Cons)(body, abReturnsList); |
| 1242 | tres = titdn0PLambdaArgs(stab, param) && |
| 1243 | titdn0PLambdaRets(stab, abReturnsList); |
| 1244 | |
| 1245 | /* Return false if either result or tres are false */ |
| 1246 | result = result ? tres : result; |
| 1247 | } |
| 1248 | |
| 1249 | /* Only allowed to set abTUnique if successful */ |
| 1250 | if (result) abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 1251 | |
| 1252 | listFree(AbSyn)(AbSyn_listPointer->Free)(abReturnsList); |
| 1253 | Return(result){ fluidUnwind(fluidLevel0, ((int) 0)); return result;; }; |
| 1254 | } |
| 1255 | |
| 1256 | localstatic Bool |
| 1257 | titdn0PLambdaArgs(Stab stab, AbSyn param) |
| 1258 | { |
| 1259 | AbSyn *argv; |
| 1260 | Length i, argc; |
| 1261 | Bool result = true1; |
| 1262 | |
| 1263 | switch (abTag(param)((param)->abHdr.tag)) { |
| 1264 | case AB_Nothing: |
| 1265 | argc = 0; |
| 1266 | argv = 0; |
| 1267 | break; |
| 1268 | case AB_Comma: |
| 1269 | argc = abArgc(param)((param)->abHdr.argc); |
| 1270 | argv = abArgv(param)((param)->abGen.data.argv); |
| 1271 | break; |
| 1272 | default: |
| 1273 | argc = 1; |
| 1274 | argv = ¶m; |
| 1275 | break; |
| 1276 | } |
| 1277 | |
| 1278 | for (i = 0; result && i < argc; i += 1) { |
| 1279 | AbSyn argi = abDefineeId(argv[i]); |
| 1280 | assert(abState(argi) == AB_State_HasUnique)do { if (!(((argi)->abHdr.state) == AB_State_HasUnique)) _do_assert (("abState(argi) == AB_State_HasUnique"),"ti_tdn.c",1280); } while (0); |
| 1281 | result = tiRawToUnary(stab, argi, abTUnique(argi)((argi)->abHdr.type.unique)); |
| 1282 | } |
| 1283 | |
| 1284 | return result; |
| 1285 | } |
| 1286 | |
| 1287 | localstatic Bool |
| 1288 | titdn0PLambdaRets(Stab stab, AbSynList vals) |
| 1289 | { |
| 1290 | Bool result = true1; |
| 1291 | |
| 1292 | for (; result && vals; vals = cdr(vals)((vals)->rest)) { |
| 1293 | AbSyn val = car(vals)((vals)->first); |
| 1294 | assert(abState(val) == AB_State_HasUnique)do { if (!(((val)->abHdr.state) == AB_State_HasUnique)) _do_assert (("abState(val) == AB_State_HasUnique"),"ti_tdn.c",1294); } while (0); |
| 1295 | result = tiUnaryToRaw(stab, val, tfUnknown); |
| 1296 | } |
| 1297 | |
| 1298 | return result; |
| 1299 | } |
| 1300 | |
| 1301 | /**************************************************************************** |
| 1302 | * |
| 1303 | * :: Sequence: (a; b; c) |
| 1304 | * |
| 1305 | ***************************************************************************/ |
| 1306 | |
| 1307 | localstatic Bool |
| 1308 | titdnSequence(Stab stab, AbSyn absyn, TForm type) |
| 1309 | { |
| 1310 | Scope("titdnSequence")String scopeName = ("titdnSequence"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 1311 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 1312 | AbSynList fluid(abExitsList)fluidSave_abExitsList = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(abExitsList ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_abExitsList , fluidStack[fluidLevel].size = sizeof(abExitsList), fluidLevel ++, (abExitsList) ); |
| 1313 | AbSyn fluid(tuniTdnSelectObj)fluidSave_tuniTdnSelectObj = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniTdnSelectObj ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniTdnSelectObj , fluidStack[fluidLevel].size = sizeof(tuniTdnSelectObj), fluidLevel ++, (tuniTdnSelectObj) ); |
| 1314 | Bool result; |
| 1315 | |
| 1316 | tuniExitTForm = type; |
| 1317 | abExitsList = listNil(AbSyn)((AbSynList) 0); |
| 1318 | tuniTdnSelectObj = NULL((void*)0); |
| 1319 | |
| 1320 | result = titdnSequence0(stab, absyn, type); |
| 1321 | |
| 1322 | Return(result){ fluidUnwind(fluidLevel0, ((int) 0)); return result;; }; |
| 1323 | } |
| 1324 | |
| 1325 | localstatic Bool |
| 1326 | titdnSequence0(Stab stab, AbSyn absyn, TForm type) |
| 1327 | { |
| 1328 | int i, n = abArgc(absyn)((absyn)->abHdr.argc); |
| 1329 | Bool result; |
| 1330 | |
| 1331 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) |
| 1332 | abState(absyn)((absyn)->abHdr.state) = AB_State_HasPoss; |
| 1333 | |
| 1334 | if (n == 0) |
| 1335 | result = titdn0NoValue(stab, absyn, type, ALDOR_E_TinContextSeq178); |
| 1336 | else |
| 1337 | { |
| 1338 | TForm none = tfNone()tfMulti(0); |
| 1339 | |
| 1340 | for (i = 0; i < n-1; i++) |
| 1341 | titdn(stab, abArgv(absyn)((absyn)->abGen.data.argv)[i], none); |
| 1342 | |
| 1343 | titdn0FarValue(stab,absyn, type, abArgv(absyn)((absyn)->abGen.data.argv)[n-1], |
| 1344 | &tuniExitTForm, &abExitsList); |
| 1345 | |
| 1346 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) { |
| 1347 | terror(stab, absyn, type); |
| 1348 | result = false((int) 0); |
| 1349 | } |
| 1350 | else { |
| 1351 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tuniExitTForm; |
| 1352 | result = true1; |
| 1353 | } |
| 1354 | } |
| 1355 | listFree(AbSyn)(AbSyn_listPointer->Free)(abExitsList); |
| 1356 | |
| 1357 | return result; |
| 1358 | } |
| 1359 | |
| 1360 | /**************************************************************************** |
| 1361 | * |
| 1362 | * :: Exit: (...; b => x ; ...) |
| 1363 | * |
| 1364 | ***************************************************************************/ |
| 1365 | |
| 1366 | localstatic Bool |
| 1367 | titdnExit(Stab stab, AbSyn absyn, TForm type) |
| 1368 | { |
| 1369 | AbSyn test = absyn->abExit.test; |
| 1370 | AbSyn value = absyn->abExit.value; |
| 1371 | AbLogic saveCond; |
| 1372 | Bool pushCond; |
| 1373 | titdn(stab, test, tfUnknown); |
| 1374 | |
| 1375 | pushCond = !tuniTdnSelectObj && abIsSefo(test)(((test)->abHdr.state) == AB_State_HasUnique); |
| 1376 | if (pushCond) { |
| 1377 | /* See tibupExit for comments */ |
| 1378 | AbSyn nTest = abExpandDefs(stab, test); |
| 1379 | ablogAndPush(&abCondKnown, &saveCond, nTest, true1); |
| 1380 | } |
| 1381 | |
| 1382 | titdn0FarValue(stab, absyn, type, value, &tuniExitTForm, &abExitsList); |
| 1383 | |
| 1384 | if (pushCond) |
| 1385 | ablogAndPop (&abCondKnown, &saveCond); |
| 1386 | |
| 1387 | return titdn0NoValue(stab, absyn, type, ALDOR_E_TinContextExit175); |
| 1388 | } |
| 1389 | |
| 1390 | /*************************************************************************** |
| 1391 | * |
| 1392 | * :: return: return x, return; |
| 1393 | * |
| 1394 | ***************************************************************************/ |
| 1395 | |
| 1396 | localstatic Bool |
| 1397 | titdnReturn(Stab stab, AbSyn absyn, TForm type) |
| 1398 | { |
| 1399 | titdn0FarValue(stab,absyn,type,absyn->abReturn.value, |
| 1400 | &tuniReturnTForm, &abReturnsList); |
| 1401 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1402 | return true1; |
| 1403 | } |
| 1404 | |
| 1405 | /**************************************************************************** |
| 1406 | * |
| 1407 | * :: Generate: generate [N] of (... yield ...) |
| 1408 | * |
| 1409 | ***************************************************************************/ |
| 1410 | |
| 1411 | localstatic Bool |
| 1412 | titdnGenerate(Stab stab, AbSyn absyn, TForm type) |
| 1413 | { |
| 1414 | Scope("titdnGenerate")String scopeName = ("titdnGenerate"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 1415 | |
| 1416 | TForm fluid(tuniReturnTForm)fluidSave_tuniReturnTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniReturnTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniReturnTForm , fluidStack[fluidLevel].size = sizeof(tuniReturnTForm), fluidLevel ++, (tuniReturnTForm) ); |
| 1417 | TForm fluid(tuniYieldTForm)fluidSave_tuniYieldTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniYieldTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniYieldTForm , fluidStack[fluidLevel].size = sizeof(tuniYieldTForm), fluidLevel ++, (tuniYieldTForm) ); |
| 1418 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 1419 | AbSynList fluid(abYieldsList)fluidSave_abYieldsList = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(abYieldsList ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_abYieldsList , fluidStack[fluidLevel].size = sizeof(abYieldsList), fluidLevel ++, (abYieldsList) ); |
| 1420 | AbSyn body = absyn->abGenerate.body; |
| 1421 | AbSyn count = absyn->abGenerate.count; |
| 1422 | Bool result; |
| 1423 | TfGenType tfGenType; |
| 1424 | |
| 1425 | tuniReturnTForm = tfNone()tfMulti(0); |
| 1426 | tuniYieldTForm = tfNone()tfMulti(0); |
| 1427 | tuniExitTForm = tfNone()tfMulti(0); |
| 1428 | abYieldsList = listNil(AbSyn)((AbSynList) 0); |
| 1429 | |
| 1430 | tfGenType = abFlag_IsNewIter(absyn)(((absyn)->abHdr.flags) == AB_Flag_NewIter) ? TFG_XGenerator : TFG_Generator; |
| 1431 | |
| 1432 | if (tfIsAnyGenerator(type)) |
| 1433 | tuniYieldTForm = tfAnyGeneratorArg(type); |
| 1434 | else |
| 1435 | tuniYieldTForm = tfUnknown; |
| 1436 | |
| 1437 | if (abTag(count)((count)->abHdr.tag) != KW_From) { |
| 1438 | titdn(stab, count, tfUnknown); |
| 1439 | } |
| 1440 | titdn(stab, body, tfNone()tfMulti(0)); |
| 1441 | |
| 1442 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) { |
| 1443 | /* |
| 1444 | * The problem must be in the body. We hope that |
| 1445 | * errors in the count expression will be handled |
| 1446 | * by someone else. The trouble is that this kind |
| 1447 | * of thinking caused bugs like #1144 which we are |
| 1448 | * trying to fix here ... |
| 1449 | * |
| 1450 | * Anyway, since we have fully analysed the body of |
| 1451 | * the generator, it probably has a unique type now. |
| 1452 | * If so we turn it into a tposs for terror(). |
| 1453 | */ |
| 1454 | if (abState(body)((body)->abHdr.state) == AB_State_HasUnique) { |
| 1455 | abState(body)((body)->abHdr.state) = AB_State_HasPoss; |
| 1456 | abTPoss(body)((body)->abHdr.type.poss) = tpossSingleton(abTUnique(body)((body)->abHdr.type.unique)); |
| 1457 | } |
| 1458 | |
| 1459 | |
| 1460 | /* |
| 1461 | * If errors were detected then they will have been |
| 1462 | * reported by titdn and the unique type associated |
| 1463 | * with the body will satisfy the context of the |
| 1464 | * generator. This means that we won't repeat these |
| 1465 | * error messages when we call terror(). |
| 1466 | * |
| 1467 | * If we didn't detect any errors when we dealt with |
| 1468 | * the body then this node must be bad because its |
| 1469 | * inferred type does not satisfy the context type. |
| 1470 | * Hopefully terror() will report the problem for us. |
| 1471 | */ |
| 1472 | terror(stab, body, type); |
| 1473 | } |
| 1474 | |
| 1475 | /* Were we successful? */ |
| 1476 | result = (abState(absyn)((absyn)->abHdr.state) != AB_State_Error) ? true1 : false((int) 0); |
| 1477 | |
| 1478 | /* Only allowed to set abTUnique if returning true */ |
| 1479 | if (result) abTUnique(absyn)((absyn)->abHdr.type.unique) = tfAnyGenerator(tfGenType, tuniYieldTForm); |
| 1480 | |
| 1481 | listFree(AbSyn)(AbSyn_listPointer->Free)(abYieldsList); |
| 1482 | Return(result){ fluidUnwind(fluidLevel0, ((int) 0)); return result;; }; |
| 1483 | } |
| 1484 | |
| 1485 | /*************************************************************************** |
| 1486 | * |
| 1487 | * :: Yield: yield x |
| 1488 | * |
| 1489 | ***************************************************************************/ |
| 1490 | |
| 1491 | localstatic Bool |
| 1492 | titdnYield(Stab stab, AbSyn absyn, TForm type) |
| 1493 | { |
| 1494 | titdn0FarValue(stab, absyn, type, |
| 1495 | absyn->abYield.value, |
| 1496 | &tuniYieldTForm, |
| 1497 | &abYieldsList); |
| 1498 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1499 | return true1; |
| 1500 | } |
| 1501 | |
| 1502 | /**************************************************************************** |
| 1503 | * |
| 1504 | * :: Add: [D] add (a: A == ...) |
| 1505 | * |
| 1506 | ***************************************************************************/ |
| 1507 | |
| 1508 | localstatic Bool |
| 1509 | titdnAdd(Stab stab, AbSyn absyn, TForm type) |
| 1510 | { |
| 1511 | AbSyn base = absyn->abAdd.base; |
| 1512 | AbSyn capsule = absyn->abAdd.capsule; |
| 1513 | |
| 1514 | titdn(stab, base, tfUnknown); /* !! cd push Type */ |
| 1515 | titdn(stab, capsule, tfUnknown); |
| 1516 | |
| 1517 | /* !! Should infer type of body. */ |
| 1518 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1519 | return true1; |
| 1520 | } |
| 1521 | |
| 1522 | /**************************************************************************** |
| 1523 | * |
| 1524 | * :: With: [C] with (a: A; ...) |
| 1525 | * |
| 1526 | ***************************************************************************/ |
| 1527 | |
| 1528 | localstatic Bool |
| 1529 | titdnWith(Stab stab, AbSyn absyn, TForm type) |
| 1530 | { |
| 1531 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 1532 | TForm rtype; |
| 1533 | |
| 1534 | rtype = tpossSelectSatisfier(abtposs, type); |
| 1535 | if (!rtype) return false((int) 0); |
| 1536 | |
| 1537 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 1538 | return true1; |
| 1539 | } |
| 1540 | |
| 1541 | /**************************************************************************** |
| 1542 | * |
| 1543 | * :: Where: e where d |
| 1544 | * |
| 1545 | ***************************************************************************/ |
| 1546 | |
| 1547 | localstatic Bool |
| 1548 | titdnWhere(Stab stab, AbSyn absyn, TForm type) |
| 1549 | { |
| 1550 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 1551 | AbSyn context = absyn->abWhere.context; |
| 1552 | AbSyn expr = absyn->abWhere.expr; |
| 1553 | |
| 1554 | titdn(stab, context, tfNone()tfMulti(0)); |
| 1555 | titdn(stab, expr, type); |
| 1556 | |
| 1557 | type = tpossSelectSatisfier(abtposs, type); |
| 1558 | if (!type) return false((int) 0); |
| 1559 | |
| 1560 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1561 | return true1; |
| 1562 | } |
| 1563 | |
| 1564 | /**************************************************************************** |
| 1565 | * |
| 1566 | * :: If: if b then t [else e] |
| 1567 | * |
| 1568 | ***************************************************************************/ |
| 1569 | |
| 1570 | localstatic Bool |
| 1571 | titdnIf(Stab stab, AbSyn absyn, TForm type) |
| 1572 | { |
| 1573 | AbSyn test = absyn->abIf.test; |
| 1574 | AbSyn thenAlt = absyn->abIf.thenAlt; |
| 1575 | AbSyn elseAlt = absyn->abIf.elseAlt; |
| 1576 | AbSyn nTest = test; |
| 1577 | AbLogic saveCond; |
| 1578 | |
| 1579 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 1580 | abtposs = tpossSatisfiesType(abtposs, type); |
| 1581 | |
| 1582 | if (tpossCount(abtposs) > 1) { |
| 1583 | terrorNotUniqueType(ALDOR_E_TinIfMeans159, absyn, type, abtposs); |
| 1584 | return false((int) 0); |
| 1585 | } |
| 1586 | |
| 1587 | /* |
| 1588 | * An unfixed compiler bug means that parts of Salli programs |
| 1589 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 1590 | * this problem as soon as possible. |
| 1591 | */ |
| 1592 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",1592); } while (0); |
| 1593 | |
| 1594 | |
| 1595 | /* This ought to do nothing since we tinfered test during tibup */ |
| 1596 | titdn(stab, test, tfBoolean); |
| 1597 | |
| 1598 | |
| 1599 | if (tfIsCategoryContext(type, absyn)) |
| 1600 | type = tpossUnique(abtposs); |
| 1601 | else /* Normalise the test for other contexts */ |
| 1602 | nTest = abExpandDefs(stab, test); |
| 1603 | |
| 1604 | if (abIsSefo(nTest)(((nTest)->abHdr.state) == AB_State_HasUnique)) { |
| 1605 | ablogAndPush(&abCondKnown, &saveCond, nTest, true1); /* test, true); */ |
| 1606 | titdn(stab, thenAlt, type); |
| 1607 | ablogAndPop (&abCondKnown, &saveCond); |
| 1608 | |
| 1609 | ablogAndPush(&abCondKnown, &saveCond, nTest, false((int) 0)); /* test, false); */ |
| 1610 | titdn(stab, elseAlt, type); |
| 1611 | ablogAndPop (&abCondKnown, &saveCond); |
| 1612 | } |
| 1613 | else { |
| 1614 | titdn(stab, thenAlt, type); |
| 1615 | titdn(stab, elseAlt, type); |
| 1616 | } |
| 1617 | |
| 1618 | /* |
| 1619 | * We can't use tpossUnique(abtposs) here because otherwise we |
| 1620 | * will end up performing embeddings on ourself in addition to |
| 1621 | * the same embeddings that we performed on the branches. |
| 1622 | */ |
| 1623 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1624 | return true1; |
| 1625 | } |
| 1626 | |
| 1627 | /**************************************************************************** |
| 1628 | * |
| 1629 | * :: Test: implied test |
| 1630 | * |
| 1631 | ***************************************************************************/ |
| 1632 | |
| 1633 | AbSyn |
| 1634 | titdnSelectArgf(AbSyn ab, Length i) |
| 1635 | { |
| 1636 | if (i == 0) |
| 1637 | return tuniTdnSelectObj; |
| 1638 | else |
| 1639 | return abArgv(ab)((ab)->abGen.data.argv)[i - 1]; |
| 1640 | } |
| 1641 | |
| 1642 | localstatic Bool |
| 1643 | titdnTest(Stab stab, AbSyn absyn, TForm type) |
| 1644 | { |
| 1645 | /* |
| 1646 | * An unfixed compiler bug means that parts of Salli programs |
| 1647 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 1648 | * this problem as soon as possible. |
| 1649 | */ |
| 1650 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",1650); } while (0); |
| 1651 | |
| 1652 | if (tuniTdnSelectObj != NULL((void*)0)) { |
| 1653 | titdn0ApplySym(stab, absyn, |
| 1654 | tfBoolean, |
| 1655 | ssymTheCase, 2, |
| 1656 | titdnSelectArgf, NULL((void*)0)); |
| 1657 | } |
| 1658 | else { |
| 1659 | titdn0ApplySymIfNeeded(stab, absyn, tfBoolean, |
| 1660 | ssymTheTest, 1, abArgf, NULL((void*)0), |
| 1661 | tfIsBooleanFn); |
| 1662 | } |
| 1663 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfBoolean; |
| 1664 | return true1; |
| 1665 | } |
| 1666 | |
| 1667 | /*************************************************************************** |
| 1668 | * |
| 1669 | * :: Collect: e <iter>* |
| 1670 | * |
| 1671 | ***************************************************************************/ |
| 1672 | |
| 1673 | localstatic Bool |
| 1674 | titdnCollect(Stab stab, AbSyn absyn, TForm type) |
| 1675 | { |
| 1676 | Scope("titdnCollect")String scopeName = ("titdnCollect"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 1677 | AbSyn body = absyn->abCollect.body; |
| 1678 | AbSyn *iterv = absyn->abCollect.iterv; |
| 1679 | Length i, iterc = abCollectIterc(absyn)(((absyn)->abHdr.argc)-1); |
| 1680 | TForm rtype; |
| 1681 | |
| 1682 | TForm fluid(tuniReturnTForm)fluidSave_tuniReturnTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniReturnTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniReturnTForm , fluidStack[fluidLevel].size = sizeof(tuniReturnTForm), fluidLevel ++, (tuniReturnTForm) ); |
| 1683 | TForm fluid(tuniYieldTForm)fluidSave_tuniYieldTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniYieldTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniYieldTForm , fluidStack[fluidLevel].size = sizeof(tuniYieldTForm), fluidLevel ++, (tuniYieldTForm) ); |
| 1684 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 1685 | |
| 1686 | tuniReturnTForm = tfNone()tfMulti(0); |
| 1687 | tuniYieldTForm = tfNone()tfMulti(0); |
| 1688 | tuniExitTForm = tfNone()tfMulti(0); |
| 1689 | |
| 1690 | for (i = 0; i < iterc; i++) |
| 1691 | titdn(stab, iterv[i], tfUnknown); |
| 1692 | |
| 1693 | if (tfIsAnyGenerator(type)) |
| 1694 | rtype = tfAnyGeneratorArg(type); |
| 1695 | else |
| 1696 | rtype = tfUnknown; |
| 1697 | |
| 1698 | titdn(stab, body, rtype); |
| 1699 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1700 | |
| 1701 | { |
| 1702 | AbEmbed embed = tfSatEmbedType(abTUnique(body)((body)->abHdr.type.unique), rtype); |
| 1703 | if (!tfIsNone(rtype)((((rtype)->tag) == TF_Multiple) && tfMultiArgc(rtype ) == 0) && embed != AB_Embed_Identity(((AbEmbed) 1) << 0)) |
| 1704 | abAddTContext(body, embed); |
| 1705 | } |
| 1706 | |
| 1707 | Return(true){ fluidUnwind(fluidLevel0, ((int) 0)); return 1;; }; |
| 1708 | } |
| 1709 | |
| 1710 | /**************************************************************************** |
| 1711 | * |
| 1712 | * :: Repeat: <iter>* repeat e |
| 1713 | * |
| 1714 | ***************************************************************************/ |
| 1715 | |
| 1716 | localstatic Bool |
| 1717 | titdnRepeat(Stab stab, AbSyn absyn, TForm type) |
| 1718 | { |
| 1719 | AbSyn body = absyn->abRepeat.body; |
| 1720 | AbSyn *iterv = absyn->abRepeat.iterv; |
| 1721 | Length i, iterc = abRepeatIterc(absyn)(((absyn)->abHdr.argc)-1); |
| 1722 | Bool result; |
| 1723 | |
| 1724 | for (i = 0; i < iterc; i++) |
| 1725 | titdn(stab, iterv[i], tfUnknown); |
| 1726 | |
| 1727 | titdn(stab, body, tfNone()tfMulti(0)); |
| 1728 | if (tfIsNone(tpossUnique(abTPoss(absyn)))((((tpossUnique(((absyn)->abHdr.type.poss)))->tag) == TF_Multiple ) && tfMultiArgc(tpossUnique(((absyn)->abHdr.type. poss))) == 0)) |
| 1729 | { |
| 1730 | result = titdn0NoValue(stab,absyn,type,ALDOR_E_TinContextRepeat177); |
| 1731 | } |
| 1732 | else |
| 1733 | { |
| 1734 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1735 | result = true1; |
| 1736 | } |
| 1737 | |
| 1738 | return result; |
| 1739 | } |
| 1740 | |
| 1741 | /*************************************************************************** |
| 1742 | * |
| 1743 | * :: Never |
| 1744 | * X |
| 1745 | ***************************************************************************/ |
| 1746 | |
| 1747 | localstatic Bool |
| 1748 | titdnNever(Stab stab, AbSyn absyn, TForm type) |
| 1749 | { |
| 1750 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1751 | return true1; |
| 1752 | } |
| 1753 | |
| 1754 | /*************************************************************************** |
| 1755 | * |
| 1756 | * :: Iterate |
| 1757 | * X |
| 1758 | ***************************************************************************/ |
| 1759 | |
| 1760 | localstatic Bool |
| 1761 | titdnIterate(Stab stab, AbSyn absyn, TForm type) |
| 1762 | { |
| 1763 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1764 | return true1; |
| 1765 | } |
| 1766 | |
| 1767 | /*************************************************************************** |
| 1768 | * |
| 1769 | * :: Break |
| 1770 | * X |
| 1771 | ***************************************************************************/ |
| 1772 | |
| 1773 | localstatic Bool |
| 1774 | titdnBreak(Stab stab, AbSyn absyn, TForm type) |
| 1775 | { |
| 1776 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfExit; |
| 1777 | return true1; |
| 1778 | } |
| 1779 | |
| 1780 | /**************************************************************************** |
| 1781 | * |
| 1782 | * :: While: while c |
| 1783 | * |
| 1784 | ***************************************************************************/ |
| 1785 | |
| 1786 | localstatic Bool |
| 1787 | titdnWhile(Stab stab, AbSyn absyn, TForm type) |
| 1788 | { |
| 1789 | /* |
| 1790 | * An unfixed compiler bug means that parts of Salli programs |
| 1791 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 1792 | * this problem as soon as possible. |
| 1793 | */ |
| 1794 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",1794); } while (0); |
| 1795 | |
| 1796 | return titdn0Generic(stab, absyn, tfBoolean); |
| 1797 | } |
| 1798 | |
| 1799 | /*************************************************************************** |
| 1800 | * |
| 1801 | * :: For: for x in l | c |
| 1802 | * |
| 1803 | ***************************************************************************/ |
| 1804 | |
| 1805 | localstatic Bool |
| 1806 | titdnFor(Stab stab, AbSyn absyn, TForm type) |
| 1807 | { |
| 1808 | AbSyn lhs = absyn->abFor.lhs; |
| 1809 | AbSyn test = absyn->abFor.test; |
| 1810 | TForm twhole; |
| 1811 | Bool unique; |
| 1812 | unique = tfIsUnknown(type)(((type)->tag) == TF_Unknown) && tpossIsUnique(abTPoss(lhs)((lhs)->abHdr.type.poss)); |
| 1813 | if (unique && abFlag_IsNewIter(absyn)(((absyn)->abHdr.flags) == AB_Flag_NewIter)) |
| 1814 | twhole = tfXGenerator(tpossUnique(abTPoss(lhs)((lhs)->abHdr.type.poss))); |
| 1815 | else if (unique) |
| 1816 | twhole = tfGenerator(tpossUnique(abTPoss(lhs)((lhs)->abHdr.type.poss))); |
| 1817 | else |
| 1818 | twhole = type; |
| 1819 | |
| 1820 | /* |
| 1821 | * Subtle note: the generator in a for-iterator lies |
| 1822 | * outside the scope level of the repeat. This means |
| 1823 | * that we have to use cdr(stab) whenever we tinfer |
| 1824 | * absyn->abFor.whole or via abForIterArgf(). |
| 1825 | */ |
| 1826 | |
| 1827 | if (!abFlag_IsNewIter(absyn)(((absyn)->abHdr.flags) == AB_Flag_NewIter)) { |
| 1828 | titdn0ApplySymIfNeeded(cdr(stab)((stab)->rest), absyn, twhole, |
| 1829 | ssymTheGenerator, 1, abForIterArgf, |
| 1830 | NULL((void*)0), tfIsGeneratorFn); |
| 1831 | } |
| 1832 | else if (abFlag_IsNewIter(absyn)(((absyn)->abHdr.flags) == AB_Flag_NewIter)) { |
| 1833 | titdn0ApplySymIfNeeded(cdr(stab)((stab)->rest), absyn, twhole, |
| 1834 | ssymTheXGenerator, 1, abForIterArgf, |
| 1835 | NULL((void*)0), tfIsXGeneratorFn); |
| 1836 | } |
| 1837 | |
| 1838 | /* |
| 1839 | * The for-variable and test lie within the scope |
| 1840 | * of the repeat clause. |
| 1841 | */ |
| 1842 | titdn(stab, lhs, tfUnknown); |
| 1843 | titdn(stab, test, tfUnknown); |
| 1844 | |
| 1845 | abTUnique(absyn)((absyn)->abHdr.type.unique) = twhole; |
| 1846 | return true1; |
| 1847 | } |
| 1848 | |
| 1849 | /**************************************************************************** |
| 1850 | * |
| 1851 | * :: Foreign: import ... from Foreign(...) |
| 1852 | * |
| 1853 | ***************************************************************************/ |
| 1854 | |
| 1855 | localstatic Bool titdnForeignJava(Stab stab, AbSyn absyn); |
| 1856 | localstatic Bool titdnForeignJavaDeclare(Stab stab, AbSyn decl); |
| 1857 | |
| 1858 | localstatic Bool |
| 1859 | titdnForeignImport(Stab stab, AbSyn absyn, TForm type) |
| 1860 | { |
| 1861 | ForeignOrigin forg = forgFrAbSyn(absyn->abForeignImport.origin); |
| 1862 | Bool ok; |
| 1863 | titdn(stab, absyn->abForeignImport.what, tfUnknown); |
| 1864 | |
| 1865 | switch (forg->protocol) { |
| 1866 | case FOAM_Proto_Java: |
| 1867 | ok = titdnForeignJava(stab, absyn->abForeignImport.what); |
| 1868 | break; |
| 1869 | default: |
| 1870 | ok = true1; |
| 1871 | break; |
| 1872 | } |
| 1873 | if (!ok) { |
| 1874 | return false((int) 0); |
| 1875 | } |
| 1876 | |
| 1877 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1878 | return true1; |
| 1879 | } |
| 1880 | |
| 1881 | localstatic Bool |
| 1882 | titdnForeignJava(Stab stab, AbSyn what) |
| 1883 | { |
| 1884 | AbSyn inner; |
| 1885 | int i; |
| 1886 | Bool ok; |
| 1887 | |
| 1888 | switch (abTag(what)((what)->abHdr.tag)) { |
| 1889 | case AB_Sequence: |
| 1890 | ok = true1; |
| 1891 | for (i=0; i<abArgc(what)((what)->abHdr.argc); i++) { |
| 1892 | ok = ok && titdnForeignJava(stab, what->abSequence.argv[i]); |
| 1893 | } |
| 1894 | return ok; |
| 1895 | case AB_Declare: |
| 1896 | return titdnForeignJavaDeclare(stab, what); |
| 1897 | case AB_Id: |
| 1898 | return false((int) 0); |
| 1899 | default: |
| 1900 | return false((int) 0); |
| 1901 | } |
| 1902 | return true1; |
| 1903 | } |
| 1904 | |
| 1905 | localstatic Bool |
| 1906 | titdnForeignJavaDeclare(Stab stab, AbSyn decl) |
| 1907 | { |
| 1908 | TForm tf; |
| 1909 | Syme syme; |
| 1910 | SymeList l; |
| 1911 | assert(abTag(decl) == AB_Declare)do { if (!(((decl)->abHdr.tag) == AB_Declare)) _do_assert( ("abTag(decl) == AB_Declare"),"ti_tdn.c",1911); } while (0); |
| 1912 | |
| 1913 | syme = abSyme(decl->abDeclare.id)((decl->abDeclare.id)->abHdr.seman ? (decl->abDeclare .id)->abHdr.seman->syme : 0); |
| 1914 | if (syme == NULL((void*)0)) |
| 1915 | return true1; /* Error is elsewhere - not here */ |
| 1916 | tf = symeType(syme); |
| 1917 | |
| 1918 | l = tfGetCatExports(tf); |
| 1919 | |
| 1920 | while (l != listNil(Syme)((SymeList) 0)) { |
| 1921 | ErrorSet errors; |
| 1922 | Syme syme = car(l)((l)->first); |
| 1923 | Bool bad; |
| 1924 | l = cdr(l)((l)->rest); |
| 1925 | errors = symeIsJavaExport(syme); |
| 1926 | |
| 1927 | if (errorSetHasErrors(errors)) { |
| 1928 | /* This isn't the most efficient, but if the list has more than |
| 1929 | * a few elements something is badly wrong anyway */ |
| 1930 | StringList tmp = errorSetErrors(errors); |
| 1931 | String s = strPrintf("%s: %s cannot be used as a java function:\n", |
| 1932 | symeString(syme)((((syme)->id))->str), |
| 1933 | abPretty(tfExpr(symeType(syme))tfToAbSyn(symeType(syme)))); |
| 1934 | while (tmp != listNil(String)((StringList) 0)) { |
| 1935 | s = strNConcat(s, "\t"); |
| 1936 | s = strNConcat(s, car(tmp)((tmp)->first)); |
| 1937 | s = strNConcat(s, "\n"); |
| 1938 | tmp = cdr(tmp)((tmp)->rest); |
| 1939 | } |
| 1940 | errorSetFree(errors); |
| 1941 | comsgError(decl, ALDOR_E_ExplicitMsg1, s); |
| 1942 | |
| 1943 | abState(decl)((decl)->abHdr.state) = AB_State_Error; |
| 1944 | return false((int) 0); |
| 1945 | } |
| 1946 | errorSetFree(errors); |
| 1947 | |
| 1948 | } |
| 1949 | return true1; |
| 1950 | } |
| 1951 | |
| 1952 | /**************************************************************************** |
| 1953 | * |
| 1954 | * :: export: export ... to D |
| 1955 | * |
| 1956 | ***************************************************************************/ |
| 1957 | |
| 1958 | localstatic Bool |
| 1959 | titdnForeignExport(Stab stab, AbSyn absyn, TForm type) |
| 1960 | { |
| 1961 | AbSyn what = absyn->abForeignExport.what; |
| 1962 | AbSyn dest = absyn->abForeignExport.dest; |
| 1963 | ForeignOrigin forg = forgFrAbSyn(dest->abApply.argv[0]); |
| 1964 | |
| 1965 | Bool success = titdn(stab, absyn->abForeignExport.what, tfUnknown); |
| 1966 | if (success && forg->protocol == FOAM_Proto_Java) { |
| 1967 | stabAddForeignExport(stab, tiGetTForm(stab, what), forg); |
| 1968 | } |
| 1969 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 1970 | return true1; |
| 1971 | } |
| 1972 | |
| 1973 | /**************************************************************************** |
| 1974 | * |
| 1975 | * :: Import: import ... from D |
| 1976 | * |
| 1977 | ***************************************************************************/ |
| 1978 | |
| 1979 | |
| 1980 | localstatic Bool |
| 1981 | titdnImport(Stab stab, AbSyn absyn, TForm type) |
| 1982 | { |
| 1983 | if (!tfSatReturn(tfNone()tfMulti(0), type)) { |
| 1984 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 1985 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 1986 | return false((int) 0); |
| 1987 | } |
| 1988 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfNone()tfMulti(0); |
| 1989 | return true1; |
| 1990 | } |
| 1991 | |
| 1992 | /**************************************************************************** |
| 1993 | * |
| 1994 | * :: Inline: inline .. from D |
| 1995 | * |
| 1996 | ***************************************************************************/ |
| 1997 | |
| 1998 | localstatic Bool |
| 1999 | titdnInline(Stab stab, AbSyn absyn, TForm type) |
| 2000 | { |
| 2001 | if (!tfSatReturn(tfNone()tfMulti(0), type)) { |
| 2002 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2003 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2004 | return false((int) 0); |
| 2005 | } |
| 2006 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 2007 | return true1; |
| 2008 | } |
| 2009 | |
| 2010 | /**************************************************************************** |
| 2011 | * |
| 2012 | * :: Qualify: A $ B |
| 2013 | * |
| 2014 | * ToDo: 3$Integer |
| 2015 | * |
| 2016 | ***************************************************************************/ |
| 2017 | |
| 2018 | localstatic Bool |
| 2019 | titdnQualify(Stab stab, AbSyn absyn, TForm type) |
| 2020 | { |
| 2021 | AbSyn origin = absyn->abQualify.origin; |
| 2022 | AbSyn what = absyn->abQualify.what; |
| 2023 | Symbol sym = what->abId.sym; |
| 2024 | |
| 2025 | TForm tforg; |
| 2026 | SymeList symes, msymes, fsymes, allSymes, okSymes; |
| 2027 | Syme syme, osyme; |
| 2028 | |
| 2029 | tforg = tiGetTForm(stab, origin); |
| 2030 | |
| 2031 | if (tfIsForeign(tforg)((((((tforg)->tag) == TF_General) && ((((tforg)-> __absyn))->abHdr.tag) == AB_Id) && (((tforg)->__absyn )->abId.sym) == (ssymForeign)) || (((((tforg)->tag) == TF_General ) && ((((tforg)->__absyn))->abHdr.tag) == AB_Apply ) && (((tforg)->__absyn)->abApply.op)->abId. sym == ssymForeign))) { |
| 2032 | msymes = stabGetMeanings(stab, abCondKnown, what->abId.sym); |
| 2033 | symes = listNil(Syme)((SymeList) 0); |
| 2034 | |
| 2035 | for ( ; msymes; msymes = cdr(msymes)((msymes)->rest)) |
| 2036 | if (symeId(car(msymes))((((msymes)->first))->id) == sym && symeIsForeign(car(msymes))(((((((msymes)->first))->kind == SYME_Trigger ? libGetAllSymes ((((msymes)->first))->lib) : ((void*)0)), (((msymes)-> first)))->kind) == SYME_Foreign)) |
| 2037 | symes = listCons(Syme)(Syme_listPointer->Cons)(car(msymes)((msymes)->first), symes); |
| 2038 | fsymes = symes; |
| 2039 | } |
| 2040 | else if (tfIsSelf(tforg)(((((tforg)->tag) == TF_General) && ((((tforg)-> __absyn))->abHdr.tag) == AB_Id) && (((tforg)->__absyn )->abId.sym) == (ssymSelf))) { |
| 2041 | /*symes = tfGetDomImports(tforg);*/ |
| 2042 | symes = listNil(Syme)((SymeList) 0); |
| 2043 | fsymes = listNil(Syme)((SymeList) 0); |
| 2044 | |
| 2045 | if (symes == listNil(Syme)((SymeList) 0)) { |
| 2046 | msymes = stabGetMeanings(stab, abCondKnown, what->abId.sym); |
| 2047 | for ( ; msymes; msymes = cdr(msymes)((msymes)->rest)) |
| 2048 | if (symeId(car(msymes))((((msymes)->first))->id) == sym && symeIsExport(car(msymes))(((((((msymes)->first))->kind == SYME_Trigger ? libGetAllSymes ((((msymes)->first))->lib) : ((void*)0)), (((msymes)-> first)))->kind) == SYME_Export)) |
| 2049 | symes = listCons(Syme)(Syme_listPointer->Cons)(car(msymes)((msymes)->first), |
| 2050 | symes); |
| 2051 | fsymes = symes; |
| 2052 | } |
| 2053 | } |
| 2054 | else { |
| 2055 | symes = listNil(Syme)((SymeList) 0); |
| 2056 | msymes = tfGetDomImportsByName(tforg, sym); |
| 2057 | for ( ; msymes; msymes = cdr(msymes)((msymes)->rest)) { |
| 2058 | assert(symeId(car(msymes)) == sym)do { if (!(((((msymes)->first))->id) == sym)) _do_assert (("symeId(car(msymes)) == sym"),"ti_tdn.c",2058); } while (0); |
| 2059 | if (ablogIsListKnown(symeCondition(car(msymes)((msymes)->first)))) |
| 2060 | symes = listCons(Syme)(Syme_listPointer->Cons)(car(msymes)((msymes)->first), symes); |
| 2061 | } |
| 2062 | fsymes = symes; |
| 2063 | } |
| 2064 | |
| 2065 | allSymes = symes; |
| 2066 | okSymes = listNil(Syme)((SymeList) 0); |
| 2067 | syme = NULL((void*)0); |
| 2068 | |
| 2069 | for (symes = allSymes; symes; symes = cdr(symes)((symes)->rest)) { |
| 2070 | syme = car(symes)((symes)->first); |
| 2071 | |
| 2072 | if (symeId(syme)((syme)->id) == sym |
| 2073 | && tfSatReturn(symeType(syme), type)) { |
| 2074 | osyme = symeListHasExtendee(okSymes, syme); |
| 2075 | if (osyme) { |
| 2076 | symeSetExtension(osyme, syme)symeXSetExtension(osyme, (AInt) syme); |
| 2077 | okSymes = symeListExtend(okSymes, syme); |
| 2078 | continue; |
| 2079 | } |
| 2080 | |
| 2081 | osyme = symeListHasExtension(okSymes, syme); |
| 2082 | if (osyme) continue; |
| 2083 | if (tiMergeSyme(syme, okSymes)) |
| 2084 | okSymes = listCons(Syme)(Syme_listPointer->Cons)(syme, okSymes); |
| 2085 | } |
| 2086 | } |
| 2087 | |
| 2088 | if (okSymes == NULL((void*)0) || cdr(okSymes)((okSymes)->rest) != NULL((void*)0)) { |
| 2089 | terrorNotUniqueMeaning(ALDOR_E_TinNMeanings165, absyn, okSymes, |
| 2090 | allSymes, symString(sym)((sym)->str), type); |
| 2091 | listFree(Syme)(Syme_listPointer->Free)(okSymes); |
| 2092 | listFree(Syme)(Syme_listPointer->Free)(fsymes); |
| 2093 | return false((int) 0); |
| 2094 | } |
| 2095 | |
| 2096 | syme = car(okSymes)((okSymes)->first); |
| 2097 | listFree(Syme)(Syme_listPointer->Free)(okSymes); |
| 2098 | listFree(Syme)(Syme_listPointer->Free)(fsymes); |
| 2099 | |
| 2100 | if (abState(what)((what)->abHdr.state) == AB_State_HasPoss) |
| 2101 | tpossFree(abTPoss(what)((what)->abHdr.type.poss)); |
| 2102 | |
| 2103 | stabSetSyme(stab, what, syme, abCondKnown); |
| 2104 | stabSetSyme(stab, absyn, syme, abCondKnown); |
| 2105 | abTUnique(what)((what)->abHdr.type.unique) = symeType(syme); |
| 2106 | abTUnique(absyn)((absyn)->abHdr.type.unique) = symeType(syme); |
| 2107 | abState(what)((what)->abHdr.state) = AB_State_HasUnique; |
| 2108 | return true1; |
| 2109 | } |
| 2110 | |
| 2111 | /*************************************************************************** |
| 2112 | * |
| 2113 | * :: CoerceTo: x :: T |
| 2114 | * |
| 2115 | ***************************************************************************/ |
| 2116 | |
| 2117 | localstatic Bool |
| 2118 | titdnCoerceTo(Stab stab, AbSyn absyn, TForm type) |
| 2119 | { |
| 2120 | TForm tf = tiGetTForm(stab, absyn->abCoerceTo.type); |
| 2121 | |
| 2122 | if (!tfSatReturn(tf, type)) { |
| 2123 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2124 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2125 | return false((int) 0); |
| 2126 | } |
| 2127 | titdn0ApplySym(stab, absyn, tf, ssymCoerce, 1, abArgf, NULL((void*)0)); |
| 2128 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tf; |
| 2129 | return true1; |
| 2130 | } |
| 2131 | |
| 2132 | /**************************************************************************** |
| 2133 | * |
| 2134 | * :: RestrictTo: A @ B |
| 2135 | * |
| 2136 | ***************************************************************************/ |
| 2137 | |
| 2138 | |
| 2139 | localstatic Bool |
| 2140 | titdnRestrictTo(Stab stab, AbSyn absyn, TForm type) |
| 2141 | { |
| 2142 | TForm tf = tiGetTForm(stab, absyn->abRestrictTo.type); |
| 2143 | |
| 2144 | if (!tfSatReturn(tf, type)) { |
| 2145 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2146 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2147 | return false((int) 0); |
| 2148 | } |
| 2149 | titdn(stab, absyn->abRestrictTo.expr, tf); |
| 2150 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tf; |
| 2151 | return true1; |
| 2152 | } |
| 2153 | |
| 2154 | |
| 2155 | /**************************************************************************** |
| 2156 | * |
| 2157 | * :: PretendTo: A pretend B |
| 2158 | * |
| 2159 | ***************************************************************************/ |
| 2160 | |
| 2161 | localstatic Bool |
| 2162 | titdnPretendTo(Stab stab, AbSyn absyn, TForm type) |
| 2163 | { |
| 2164 | TForm tf = tiGetTForm(stab, absyn->abPretendTo.type); |
| 2165 | |
| 2166 | if (!tfSatReturn(tf, type)) { |
| 2167 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2168 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2169 | return false((int) 0); |
| 2170 | } |
| 2171 | titdn(stab, absyn->abPretendTo.expr, tfUnknown); |
| 2172 | if (!tfIsMulti(type)(((type)->tag) == TF_Multiple) && tfIsMulti(abTUnique(absyn->abPretendTo.expr))(((((absyn->abPretendTo.expr)->abHdr.type.unique))-> tag) == TF_Multiple)) { |
| 2173 | abSetTContext(absyn->abPretendTo.expr, AB_Embed_MultiToCross(((AbEmbed) 1) << 5)); |
| 2174 | } |
| 2175 | |
| 2176 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tf; |
| 2177 | return true1; |
| 2178 | } |
| 2179 | |
| 2180 | /*************************************************************************** |
| 2181 | * |
| 2182 | * :: Not: not a |
| 2183 | * |
| 2184 | ***************************************************************************/ |
| 2185 | |
| 2186 | localstatic Bool |
| 2187 | titdnNot(Stab stab, AbSyn absyn, TForm type) |
| 2188 | { |
| 2189 | /* |
| 2190 | * An unfixed compiler bug means that parts of Salli programs |
| 2191 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 2192 | * this problem as soon as possible. |
| 2193 | */ |
| 2194 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2194); } while (0); |
| 2195 | |
| 2196 | if (!tfSatReturn(tfBoolean, type)) { |
| 2197 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2198 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2199 | return false((int) 0); |
| 2200 | } |
| 2201 | titdn(stab, absyn->abNot.expr, tfBoolean); |
| 2202 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfBoolean; |
| 2203 | return true1; |
| 2204 | } |
| 2205 | |
| 2206 | /*************************************************************************** |
| 2207 | * |
| 2208 | * :: And: a and b and c ... |
| 2209 | * |
| 2210 | ***************************************************************************/ |
| 2211 | |
| 2212 | localstatic Bool |
| 2213 | titdnAnd(Stab stab, AbSyn absyn, TForm type) |
| 2214 | { |
| 2215 | int i; |
| 2216 | int argc = abArgc(absyn)((absyn)->abHdr.argc); |
| 2217 | AbLogic *saveCond = (AbLogic*) stoAlloc(OB_Other0, sizeof(AbLogic) * argc); |
| 2218 | |
| 2219 | /* |
| 2220 | * An unfixed compiler bug means that parts of Salli programs |
| 2221 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 2222 | * this problem as soon as possible. |
| 2223 | */ |
| 2224 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2224); } while (0); |
| 2225 | |
| 2226 | if (!tfSatReturn(tfBoolean, type)) { |
| 2227 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2228 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2229 | return false((int) 0); |
| 2230 | } |
| 2231 | |
| 2232 | for (i = 0; i < argc; i++) { |
| 2233 | titdn(stab, abArgv(absyn)((absyn)->abGen.data.argv)[i], tfBoolean); |
| 2234 | ablogAndPush(&abCondKnown, &saveCond[i], abArgv(absyn)((absyn)->abGen.data.argv)[i], true1); |
| 2235 | } |
| 2236 | for (i = 0; i < argc; i++) { |
| 2237 | ablogAndPop(&abCondKnown, &saveCond[argc-i-1]); |
| 2238 | } |
| 2239 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfBoolean; |
| 2240 | stoFree(saveCond); |
| 2241 | return true1; |
| 2242 | } |
| 2243 | |
| 2244 | /*************************************************************************** |
| 2245 | * |
| 2246 | * :: Or: a or b or c ... |
| 2247 | * |
| 2248 | ***************************************************************************/ |
| 2249 | |
| 2250 | |
| 2251 | localstatic Bool |
| 2252 | titdnOr(Stab stab, AbSyn absyn, TForm type) |
| 2253 | { |
| 2254 | int i; |
| 2255 | |
| 2256 | /* |
| 2257 | * An unfixed compiler bug means that parts of Salli programs |
| 2258 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 2259 | * this problem as soon as possible. |
| 2260 | */ |
| 2261 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2261); } while (0); |
| 2262 | |
| 2263 | if (!tfSatReturn(tfBoolean, type)) { |
| 2264 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, |
| 2265 | absyn, type, abTPoss(absyn)((absyn)->abHdr.type.poss)); |
| 2266 | return false((int) 0); |
| 2267 | } |
| 2268 | for (i = 0; i < abArgc(absyn)((absyn)->abHdr.argc); i++) |
| 2269 | titdn(stab, abArgv(absyn)((absyn)->abGen.data.argv)[i], tfBoolean); |
| 2270 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfBoolean; |
| 2271 | return true1; |
| 2272 | } |
| 2273 | |
| 2274 | /*************************************************************************** |
| 2275 | * |
| 2276 | * :: Assert: |
| 2277 | * |
| 2278 | ***************************************************************************/ |
| 2279 | |
| 2280 | localstatic Bool |
| 2281 | titdnAssert(Stab stab, AbSyn absyn, TForm type) |
| 2282 | { |
| 2283 | Bool ok; |
| 2284 | |
| 2285 | /* Ensure that the context requires no value */ |
| 2286 | ok = titdn0NoValue(stab, absyn, type, ALDOR_E_TinContextAssert173); |
| 2287 | |
| 2288 | /* |
| 2289 | * An unfixed compiler bug means that parts of Salli programs |
| 2290 | * tinfered with (tfBoolean == tfUnknown). We want to catch |
| 2291 | * this problem as soon as possible. |
| 2292 | */ |
| 2293 | assert(!ok || (tfBoolean != tfUnknown))do { if (!(!ok || (tfBoolean != tfUnknown))) _do_assert(("!ok || (tfBoolean != tfUnknown)" ),"ti_tdn.c",2293); } while (0); |
| 2294 | |
| 2295 | if (ok) titdn(stab, absyn->abAssert.test, tfBoolean); |
| 2296 | return ok; |
| 2297 | } |
| 2298 | |
| 2299 | /*************************************************************************** |
| 2300 | * |
| 2301 | * :: Blank: |
| 2302 | * |
| 2303 | ***************************************************************************/ |
| 2304 | |
| 2305 | localstatic Bool |
| 2306 | titdnBlank(Stab stab, AbSyn absyn, TForm type) |
| 2307 | { |
| 2308 | return titdn0Generic(stab, absyn, type); |
| 2309 | } |
| 2310 | |
| 2311 | /*************************************************************************** |
| 2312 | * |
| 2313 | * :: Builtin: |
| 2314 | * |
| 2315 | ***************************************************************************/ |
| 2316 | |
| 2317 | localstatic Bool |
| 2318 | titdnBuiltin(Stab stab, AbSyn absyn, TForm type) |
| 2319 | { |
| 2320 | return titdn0Generic(stab, absyn, type); |
| 2321 | } |
| 2322 | |
| 2323 | /*************************************************************************** |
| 2324 | * |
| 2325 | * :: Default: |
| 2326 | * |
| 2327 | ***************************************************************************/ |
| 2328 | |
| 2329 | localstatic Bool |
| 2330 | titdnDefault(Stab stab, AbSyn absyn, TForm type) |
| 2331 | { |
| 2332 | TPoss abtposs = abTPoss(absyn)((absyn)->abHdr.type.poss); |
| 2333 | TForm rtype; |
| 2334 | |
| 2335 | rtype = tpossSelectSatisfier(abtposs, type); |
| 2336 | if (!rtype) return false((int) 0); |
| 2337 | |
| 2338 | abTUnique(absyn)((absyn)->abHdr.type.unique) = rtype; |
| 2339 | return true1; |
| 2340 | } |
| 2341 | |
| 2342 | /*************************************************************************** |
| 2343 | * |
| 2344 | * :: Delay: |
| 2345 | * |
| 2346 | ***************************************************************************/ |
| 2347 | |
| 2348 | localstatic Bool |
| 2349 | titdnDelay(Stab stab, AbSyn absyn, TForm type) |
| 2350 | { |
| 2351 | return titdn0Generic(stab, absyn, type); |
| 2352 | } |
| 2353 | |
| 2354 | /*************************************************************************** |
| 2355 | * |
| 2356 | * :: Do: |
| 2357 | * |
| 2358 | ***************************************************************************/ |
| 2359 | |
| 2360 | localstatic Bool |
| 2361 | titdnDo(Stab stab, AbSyn absyn, TForm type) |
| 2362 | { |
| 2363 | Bool ok; |
| 2364 | |
| 2365 | /* Ensure that the context requires no value */ |
| 2366 | ok = titdn0NoValue(stab, absyn, type, ALDOR_E_TinContextDo174); |
Value stored to 'ok' is never read | |
| 2367 | return titdn0Generic(stab, absyn, tfNone()tfMulti(0)); |
| 2368 | } |
| 2369 | |
| 2370 | /*************************************************************************** |
| 2371 | * |
| 2372 | * :: Except: |
| 2373 | * |
| 2374 | ***************************************************************************/ |
| 2375 | |
| 2376 | localstatic Bool |
| 2377 | titdnExcept(Stab stab, AbSyn absyn, TForm type) |
| 2378 | { |
| 2379 | titdn(stab, absyn->abExcept.except, tfTuple(tfCategory)); |
| 2380 | if (!titdn(stab, absyn->abExcept.type, type)) |
| 2381 | return false((int) 0); |
| 2382 | if (abState(absyn->abExcept.type)((absyn->abExcept.type)->abHdr.state) != AB_State_HasUnique) |
| 2383 | return false((int) 0); |
| 2384 | abTUnique(absyn)((absyn)->abHdr.type.unique) = abTUnique(absyn->abExcept.type)((absyn->abExcept.type)->abHdr.type.unique); |
| 2385 | return true1; |
| 2386 | } |
| 2387 | |
| 2388 | /*************************************************************************** |
| 2389 | * |
| 2390 | * :: Raise: |
| 2391 | * |
| 2392 | ***************************************************************************/ |
| 2393 | |
| 2394 | localstatic Bool |
| 2395 | titdnRaise(Stab stab, AbSyn absyn, TForm type) |
| 2396 | { |
| 2397 | TForm tf; |
| 2398 | Sefo sef; |
| 2399 | titdn(stab, absyn->abRaise.expr, tfDomain); |
| 2400 | tf = tiGetTForm(stab, absyn->abRaise.expr); |
| 2401 | sef = tfGetExpr(tf)((tf)->__absyn); |
| 2402 | assert(sef)do { if (!(sef)) _do_assert(("sef"),"ti_tdn.c",2402); } while (0); |
| 2403 | tf = tfExcept(tfExit, abGetCategory(sef)); |
| 2404 | if (!tfSatReturn(tf, type)) { |
| 2405 | /* !!This is the _wrong_ routine to call */ |
| 2406 | terrorNotUniqueType(ALDOR_E_TinExprMeans164, absyn, type, |
| 2407 | tpossSingleton(tf)); |
| 2408 | return false((int) 0); |
| 2409 | } |
| 2410 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tf; |
| 2411 | return true1; |
| 2412 | } |
| 2413 | |
| 2414 | /*************************************************************************** |
| 2415 | * |
| 2416 | * :: Export: |
| 2417 | * |
| 2418 | ***************************************************************************/ |
| 2419 | |
| 2420 | localstatic Bool |
| 2421 | titdnExport(Stab stab, AbSyn absyn, TForm type) |
| 2422 | { |
| 2423 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfNone()tfMulti(0); |
| 2424 | return true1; |
| 2425 | } |
| 2426 | |
| 2427 | /*************************************************************************** |
| 2428 | * |
| 2429 | * :: Extend: |
| 2430 | * |
| 2431 | ***************************************************************************/ |
| 2432 | |
| 2433 | localstatic Bool |
| 2434 | titdnExtend(Stab stab, AbSyn absyn, TForm type) |
| 2435 | { |
| 2436 | return titdn0Generic(stab, absyn, type); |
| 2437 | } |
| 2438 | |
| 2439 | /*************************************************************************** |
| 2440 | * |
| 2441 | * :: Fix: |
| 2442 | * |
| 2443 | ***************************************************************************/ |
| 2444 | |
| 2445 | localstatic Bool |
| 2446 | titdnFix(Stab stab, AbSyn absyn, TForm type) |
| 2447 | { |
| 2448 | return titdn0Generic(stab, absyn, type); |
| 2449 | } |
| 2450 | |
| 2451 | /*************************************************************************** |
| 2452 | * |
| 2453 | * :: Fluid: |
| 2454 | * |
| 2455 | ***************************************************************************/ |
| 2456 | |
| 2457 | localstatic Bool |
| 2458 | titdnFluid(Stab stab, AbSyn absyn, TForm type) |
| 2459 | { |
| 2460 | return titdn0Generic(stab, absyn, type); |
| 2461 | } |
| 2462 | |
| 2463 | /*************************************************************************** |
| 2464 | * |
| 2465 | * :: Free: |
| 2466 | * |
| 2467 | ***************************************************************************/ |
| 2468 | |
| 2469 | localstatic Bool |
| 2470 | titdnFree(Stab stab, AbSyn absyn, TForm type) |
| 2471 | { |
| 2472 | return titdn0Generic(stab, absyn, type); |
| 2473 | } |
| 2474 | |
| 2475 | /*************************************************************************** |
| 2476 | * |
| 2477 | * :: Has: |
| 2478 | * |
| 2479 | ***************************************************************************/ |
| 2480 | |
| 2481 | localstatic Bool |
| 2482 | titdnHas(Stab stab, AbSyn absyn, TForm type) |
| 2483 | { |
| 2484 | return titdn0Generic(stab, absyn, type); |
| 2485 | } |
| 2486 | |
| 2487 | /*************************************************************************** |
| 2488 | * |
| 2489 | * :: Hide: |
| 2490 | * |
| 2491 | ***************************************************************************/ |
| 2492 | |
| 2493 | localstatic Bool |
| 2494 | titdnHide(Stab stab, AbSyn absyn, TForm type) |
| 2495 | { |
| 2496 | return titdn0Generic(stab, absyn, type); |
| 2497 | } |
| 2498 | |
| 2499 | /*************************************************************************** |
| 2500 | * |
| 2501 | * :: IdSy: |
| 2502 | * |
| 2503 | ***************************************************************************/ |
| 2504 | |
| 2505 | localstatic Bool |
| 2506 | titdnIdSy(Stab stab, AbSyn absyn, TForm type) |
| 2507 | { |
| 2508 | return titdn0Generic(stab, absyn, type); |
| 2509 | } |
| 2510 | |
| 2511 | /*************************************************************************** |
| 2512 | * |
| 2513 | * :: Local: |
| 2514 | * |
| 2515 | ***************************************************************************/ |
| 2516 | |
| 2517 | localstatic Bool |
| 2518 | titdnLocal(Stab stab, AbSyn absyn, TForm type) |
| 2519 | { |
| 2520 | return titdn0Generic(stab, absyn, type); |
| 2521 | } |
| 2522 | |
| 2523 | /*************************************************************************** |
| 2524 | * |
| 2525 | * :: Macro: |
| 2526 | * |
| 2527 | ***************************************************************************/ |
| 2528 | |
| 2529 | localstatic Bool |
| 2530 | titdnMacro(Stab stab, AbSyn absyn, TForm type) |
| 2531 | { |
| 2532 | return titdn0Generic(stab, absyn, type); |
| 2533 | } |
| 2534 | |
| 2535 | /*************************************************************************** |
| 2536 | * |
| 2537 | * :: MLambda: |
| 2538 | * |
| 2539 | ***************************************************************************/ |
| 2540 | |
| 2541 | localstatic Bool |
| 2542 | titdnMLambda(Stab stab, AbSyn absyn, TForm type) |
| 2543 | { |
| 2544 | return titdn0Generic(stab, absyn, type); |
| 2545 | } |
| 2546 | |
| 2547 | /*************************************************************************** |
| 2548 | * |
| 2549 | * :: Nothing: |
| 2550 | * |
| 2551 | ***************************************************************************/ |
| 2552 | |
| 2553 | localstatic Bool |
| 2554 | titdnNothing(Stab stab, AbSyn absyn, TForm type) |
| 2555 | { |
| 2556 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfNone()tfMulti(0); |
| 2557 | return true1; |
| 2558 | } |
| 2559 | |
| 2560 | /*************************************************************************** |
| 2561 | * |
| 2562 | * :: Quote: |
| 2563 | * |
| 2564 | ***************************************************************************/ |
| 2565 | |
| 2566 | localstatic Bool |
| 2567 | titdnQuote(Stab stab, AbSyn absyn, TForm type) |
| 2568 | { |
| 2569 | return titdn0Generic(stab, absyn, type); |
| 2570 | } |
| 2571 | |
| 2572 | /*************************************************************************** |
| 2573 | * |
| 2574 | * :: Reference: ref id |
| 2575 | * |
| 2576 | ***************************************************************************/ |
| 2577 | |
| 2578 | localstatic Bool |
| 2579 | titdnReference(Stab stab, AbSyn absyn, TForm type) |
| 2580 | { |
| 2581 | AbSyn body = absyn -> abReference.body; |
| 2582 | TForm inner; |
| 2583 | |
| 2584 | |
| 2585 | /* What is the argument to the reference? */ |
| 2586 | if (tfIsReference(type)(((type)->tag) == TF_Reference)) |
| 2587 | inner = tfReferenceArg(type)tfFollowArg(type, 0); |
| 2588 | else |
| 2589 | inner = tfUnknown; |
| 2590 | |
| 2591 | |
| 2592 | /* Continue type inference to the leaves */ |
| 2593 | titdn(stab, body, tfUnknown); |
| 2594 | |
| 2595 | |
| 2596 | /* Return now if an error has occurred */ |
| 2597 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) return false((int) 0); |
| 2598 | |
| 2599 | |
| 2600 | /* Fix our type */ |
| 2601 | abTUnique(absyn)((absyn)->abHdr.type.unique) = tfReference(inner); |
| 2602 | return true1; |
| 2603 | } |
| 2604 | |
| 2605 | /*************************************************************************** |
| 2606 | * |
| 2607 | * :: Select: |
| 2608 | * |
| 2609 | ***************************************************************************/ |
| 2610 | |
| 2611 | localstatic Bool |
| 2612 | titdnSelect(Stab stab, AbSyn absyn, TForm type) |
| 2613 | { |
| 2614 | Scope("titdnSelect")String scopeName = ("titdnSelect"); int fluidLevel0 = (scopeLevel ++, fluidLevel); |
| 2615 | TForm fluid(tuniExitTForm)fluidSave_tuniExitTForm = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniExitTForm ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniExitTForm , fluidStack[fluidLevel].size = sizeof(tuniExitTForm), fluidLevel ++, (tuniExitTForm) ); |
| 2616 | AbSynList fluid(abExitsList)fluidSave_abExitsList = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(abExitsList ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_abExitsList , fluidStack[fluidLevel].size = sizeof(abExitsList), fluidLevel ++, (abExitsList) ); |
| 2617 | AbSyn fluid(tuniTdnSelectObj)fluidSave_tuniTdnSelectObj = ( fluidStack = (fluidLevel==fluidLimit ) ? fluidGrow() : fluidStack, fluidStack[fluidLevel].scopeName = scopeName, fluidStack[fluidLevel].scopeLevel = scopeLevel, fluidStack[fluidLevel].pglobal = (Pointer) &(tuniTdnSelectObj ), fluidStack[fluidLevel].pstack = (Pointer) &fluidSave_tuniTdnSelectObj , fluidStack[fluidLevel].size = sizeof(tuniTdnSelectObj), fluidLevel ++, (tuniTdnSelectObj) ); |
| 2618 | AbSyn seq; |
| 2619 | Bool result; |
| 2620 | |
| 2621 | tuniExitTForm = type; |
| 2622 | abExitsList = listNil(AbSyn)((AbSynList) 0); |
| 2623 | tuniTdnSelectObj = absyn->abSelect.testPart; |
| 2624 | |
| 2625 | titdn(stab, absyn->abSelect.testPart, tfUnknown); |
| 2626 | |
| 2627 | seq = absyn->abSelect.alternatives; |
| 2628 | |
| 2629 | result = titdnSequence0(stab, absyn->abSelect.alternatives, type); |
| 2630 | |
| 2631 | if (result) |
| 2632 | abTUnique(absyn)((absyn)->abHdr.type.unique) = abTUnique(absyn->abSelect.alternatives)((absyn->abSelect.alternatives)->abHdr.type.unique); |
| 2633 | Return(result){ fluidUnwind(fluidLevel0, ((int) 0)); return result;; }; |
| 2634 | } |
| 2635 | |
| 2636 | /*************************************************************************** |
| 2637 | * |
| 2638 | * :: Try: |
| 2639 | * |
| 2640 | ***************************************************************************/ |
| 2641 | |
| 2642 | localstatic Bool |
| 2643 | titdnTry(Stab stab, AbSyn absyn, TForm type) |
| 2644 | { |
| 2645 | AInt i, argc; |
| 2646 | TForm inner; |
| 2647 | AbEmbed embed; |
| 2648 | AbSyn expr, seq, nuttin, *argv; |
| 2649 | |
| 2650 | extern void tibup(Stab, AbSyn, TForm); |
| 2651 | |
| 2652 | |
| 2653 | /* Try-blocks with no value are tricky */ |
| 2654 | if (tfIsNone(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0)) { |
| 2655 | /* (void)fprintf(dbOut, "*** Ick: empty multi.\n"); */ |
| 2656 | expr = absyn->abTry.expr; |
| 2657 | |
| 2658 | |
| 2659 | /* We want to force a void return value */ |
| 2660 | if(abHasTag(expr, AB_Sequence)((expr)->abHdr.tag == (AB_Sequence))) { |
| 2661 | argc = abArgc(expr)((expr)->abHdr.argc); |
| 2662 | argv = abArgv(expr)((expr)->abGen.data.argv); |
| 2663 | } |
| 2664 | else { |
| 2665 | argc = 1; |
| 2666 | argv = &expr; |
| 2667 | } |
| 2668 | |
| 2669 | |
| 2670 | /* Create a new sequence */ |
| 2671 | seq = abNewEmpty(AB_Sequence, argc + 1); |
| 2672 | |
| 2673 | |
| 2674 | /* Copy across the old members */ |
| 2675 | for (i = 0;i < argc; i++) |
| 2676 | abArgv(seq)((seq)->abGen.data.argv)[i] = argv[i]; |
| 2677 | |
| 2678 | |
| 2679 | /* Create a void value and type infer */ |
| 2680 | nuttin = abNewNothing(abPos(expr))abNew(AB_Nothing, (spstackFirst((expr)->abHdr.pos)),0 ); |
| 2681 | tibup(stab, nuttin, tfNone()tfMulti(0)); |
| 2682 | |
| 2683 | |
| 2684 | /* Append the void to the sequence */ |
| 2685 | abArgv(seq)((seq)->abGen.data.argv)[argc] = nuttin; |
| 2686 | |
| 2687 | |
| 2688 | /* We require the type to be () */ |
| 2689 | abUse(seq)((seq)->abHdr.use) = abUse(expr)((expr)->abHdr.use); |
| 2690 | abState(seq)((seq)->abHdr.state) = AB_State_HasPoss; |
| 2691 | abTPoss(seq)((seq)->abHdr.type.poss) = tpossSingleton(tfNone()tfMulti(0)); |
| 2692 | |
| 2693 | |
| 2694 | /* Update the try-expression */ |
| 2695 | absyn->abTry.expr = seq; |
| 2696 | } |
| 2697 | else if (tfIsMulti(type)(((type)->tag) == TF_Multiple)) { |
| 2698 | /* (void)fprintf(dbOut, "*** Yum: hot-cross multi!\n"); */ |
| 2699 | type = tfCrossFrMulti(type); |
| 2700 | } |
| 2701 | |
| 2702 | |
| 2703 | /* Finish the type inference on this node */ |
| 2704 | titdn(stab, absyn->abTry.id, tfUnknown); |
| 2705 | titdn(stab, absyn->abTry.expr, tfIgnoreExceptions(type)); |
| 2706 | titdn(stab, absyn->abTry.always, tfNone()tfMulti(0)); |
| 2707 | if (!abIsNothing(absyn->abTry.except)((absyn->abTry.except)->abHdr.tag == (AB_Nothing))) |
| 2708 | titdn(stab, absyn->abTry.except, type); |
| 2709 | |
| 2710 | |
| 2711 | /* Embed multi-valued try-blocks in a Cross */ |
| 2712 | if (abState(absyn->abTry.expr)((absyn->abTry.expr)->abHdr.state) == AB_State_HasUnique) { |
| 2713 | inner = abTUnique(absyn->abTry.expr)((absyn->abTry.expr)->abHdr.type.unique); |
| 2714 | |
| 2715 | if (tfAsMultiArgc(inner) > 1) { |
| 2716 | embed = tfSatEmbedType(inner, type); |
| 2717 | if (!tfIsNone(type)((((type)->tag) == TF_Multiple) && tfMultiArgc(type ) == 0) && (embed != AB_Embed_Identity(((AbEmbed) 1) << 0))) |
| 2718 | abAddTContext(absyn->abTry.expr, embed); |
| 2719 | } |
| 2720 | } |
| 2721 | |
| 2722 | abTUnique(absyn)((absyn)->abHdr.type.unique) = type; |
| 2723 | return true1; |
| 2724 | } |
| 2725 | |
| 2726 | /*************************************************************************** |
| 2727 | * |
| 2728 | * :: Let: |
| 2729 | * |
| 2730 | ***************************************************************************/ |
| 2731 | |
| 2732 | localstatic Bool |
| 2733 | titdnLet(Stab stab, AbSyn absyn, TForm type) |
| 2734 | { |
| 2735 | return titdn0Generic(stab, absyn, type); |
| 2736 | } |
| 2737 | |
| 2738 | |
| 2739 | /************************************************************************** |
| 2740 | * titdnError: permforms a recursive discendent visit of parse tree |
| 2741 | * looking for nodes with state == AB_State_Error and giving error |
| 2742 | * message. |
| 2743 | * Note: every error find in bup process should be handled here. |
| 2744 | **************************************************************************/ |
| 2745 | |
| 2746 | localstatic void titdn0ErrorSequence(Stab stab, AbSyn ab, TForm type); |
| 2747 | |
| 2748 | /* Call titdnError on each subtree using .type. as constraint type */ |
| 2749 | localstatic void |
| 2750 | titdn0Error(Stab stab, AbSyn absyn, TForm type) |
| 2751 | { |
| 2752 | int i; |
| 2753 | int argc = abArgc(absyn)((absyn)->abHdr.argc); |
| 2754 | |
| 2755 | for (i = 0; i < argc; i++) { |
| 2756 | AbSyn argi = abArgv(absyn)((absyn)->abGen.data.argv)[i]; |
| 2757 | titdnError(stab, argi, type); |
| 2758 | } |
| 2759 | } |
| 2760 | |
| 2761 | localstatic void |
| 2762 | titdnError(Stab stab, AbSyn absyn, TForm type) |
| 2763 | { |
| 2764 | tfFollow(type)((type) = tfFollowFn(type)); |
| 2765 | |
| 2766 | if (!abIsLeaf(absyn)(((absyn)->abHdr.tag) < AB_NODE_START) && abStab(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->stab : 0)) |
| 2767 | stab = abStab(absyn)((absyn)->abHdr.seman ? (absyn)->abHdr.seman->stab : 0); |
| 2768 | |
| 2769 | if (abState(absyn)((absyn)->abHdr.state) == AB_State_Error) { |
| 2770 | Bool exit = true1; |
| 2771 | Bool result = false((int) 0); |
| 2772 | |
| 2773 | if (abTag(absyn)((absyn)->abHdr.tag) == AB_Sequence) |
| 2774 | result = titdnSequence(stab, absyn, type); |
| 2775 | else if (abIsAnyLambda(absyn)(((absyn)->abHdr.tag == (AB_Lambda)) || ((absyn)->abHdr .tag == (AB_PLambda)))) |
| 2776 | result = titdnLambda(stab, absyn, type); |
| 2777 | else if (abTag(absyn)((absyn)->abHdr.tag) == AB_Generate) |
| 2778 | result = titdnGenerate(stab, absyn, type); |
| 2779 | else |
| 2780 | exit = !terror(stab, absyn, type); |
| 2781 | |
| 2782 | /*assert(!result);*/ |
| 2783 | if (result) abState(absyn)((absyn)->abHdr.state) = AB_State_HasUnique; |
| 2784 | |
| 2785 | if (exit) return; |
| 2786 | } |
| 2787 | |
| 2788 | if (!abIsLeaf(absyn)(((absyn)->abHdr.tag) < AB_NODE_START)) { |
| 2789 | |
| 2790 | /* Determine the constraint types */ |
| 2791 | switch(abTag(absyn)((absyn)->abHdr.tag)) { |
| 2792 | case AB_Declare: |
| 2793 | { |
| 2794 | TForm tf = abTForm(absyn->abDeclare.type)((absyn->abDeclare.type)->abHdr.seman ? (absyn->abDeclare .type)->abHdr.seman->tform : 0); |
| 2795 | titdnError(stab, absyn->abDeclare.id, tf); |
| 2796 | } |
| 2797 | break; |
| 2798 | case AB_Lambda: |
| 2799 | case AB_PLambda: { |
| 2800 | TForm tf = tiGetTForm(stab,absyn->abLambda.rtype); |
| 2801 | titdnError(stab, absyn->abLambda.param, tfUnknown); |
| 2802 | titdnError(stab, absyn->abLambda.body, tf); |
| 2803 | } |
| 2804 | break; |
| 2805 | case AB_With: |
| 2806 | titdnError(stab,absyn->abWith.base, tfCategory); |
| 2807 | titdnError(stab,absyn->abWith.within, tfUnknown); |
| 2808 | break; |
| 2809 | case AB_Where: |
| 2810 | titdnError(stab,absyn->abWhere.context, tfUnknown); |
| 2811 | titdnError(stab,absyn->abWhere.expr, type); |
| 2812 | break; |
| 2813 | case AB_If: |
| 2814 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2814); } while (0); |
| 2815 | titdnError(stab, absyn->abIf.test, tfBoolean); |
| 2816 | titdnError(stab, absyn->abIf.thenAlt, type); |
| 2817 | titdnError(stab, absyn->abIf.elseAlt, type); |
| 2818 | break; |
| 2819 | case AB_RestrictTo: { |
| 2820 | TForm tf = tiGetTForm(stab, absyn->abRestrictTo.type); |
| 2821 | titdnError(stab, absyn->abRestrictTo.expr, tf); |
| 2822 | } |
| 2823 | break; |
| 2824 | case AB_For: |
| 2825 | titdnError(stab, absyn->abFor.whole, tfUnknown); |
| 2826 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2826); } while (0); |
| 2827 | titdnError(stab, absyn->abFor.test, tfBoolean); |
| 2828 | titdnError(stab, absyn->abFor.lhs, tfUnknown); |
| 2829 | break; |
| 2830 | case AB_ForeignImport: |
| 2831 | titdnError(stab, absyn->abForeignImport.what, tfUnknown); |
| 2832 | break; |
| 2833 | case AB_ForeignExport: |
| 2834 | titdnError(stab, absyn->abForeignExport.what, tfUnknown); |
| 2835 | break; |
| 2836 | case AB_Import: |
| 2837 | titdnError(stab, absyn->abImport.what, tfUnknown); |
| 2838 | break; |
| 2839 | case AB_Inline: |
| 2840 | titdnError(stab, absyn->abInline.what, tfUnknown); |
| 2841 | break; |
| 2842 | case AB_Sequence: |
| 2843 | titdn0ErrorSequence(stab, absyn, type); |
| 2844 | break; |
| 2845 | case AB_PretendTo: |
| 2846 | case AB_Do: |
| 2847 | case AB_Repeat: |
| 2848 | case AB_Collect: |
| 2849 | case AB_Generate: |
| 2850 | case AB_Return: |
| 2851 | case AB_Exit: |
| 2852 | case AB_Comma: |
| 2853 | case AB_Apply: |
| 2854 | titdn0Error(stab, absyn, tfUnknown); |
| 2855 | break; |
| 2856 | case AB_Not: |
| 2857 | case AB_And: |
| 2858 | case AB_Or: |
| 2859 | case AB_Has: |
| 2860 | case AB_While: |
| 2861 | assert(tfBoolean != tfUnknown)do { if (!(tfBoolean != tfUnknown)) _do_assert(("tfBoolean != tfUnknown" ),"ti_tdn.c",2861); } while (0); |
| 2862 | titdn0Error(stab, absyn, tfBoolean); |
| 2863 | break; |
| 2864 | default: |
| 2865 | titdn0Error(stab, absyn, type); |
| 2866 | break; |
| 2867 | } |
| 2868 | } |
| 2869 | return; |
| 2870 | } |
| 2871 | |
| 2872 | |
| 2873 | /* NB: We should also handle 'exit' cases, and similar with |
| 2874 | * generate and return (probably) |
| 2875 | */ |
| 2876 | localstatic void |
| 2877 | titdn0ErrorSequence(Stab stab, AbSyn absyn, TForm type) |
| 2878 | { |
| 2879 | TForm none = tfNone()tfMulti(0); |
| 2880 | int i; |
| 2881 | int argc = abArgc(absyn)((absyn)->abHdr.argc); |
| 2882 | |
| 2883 | if (argc == 0) |
| 2884 | return; |
| 2885 | |
| 2886 | for (i = 0; i < argc-1; i++) { |
| 2887 | AbSyn argi = absyn->abSequence.argv[i]; |
| 2888 | titdnError(stab, argi, none); |
| 2889 | } |
| 2890 | titdnError(stab, absyn->abSequence.argv[i], type); |
| 2891 | } |