variable dynamic lib names
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14 changed files with 504 additions and 766 deletions
277
rod/semfold.nim
277
rod/semfold.nim
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@ -14,7 +14,7 @@ import
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strutils, lists, options, ast, astalgo, trees, treetab, nimsets, times,
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nversion, platform, math, msgs, os, condsyms, idents, rnimsyn, types
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proc getConstExpr*(module: PSym, n: PNode): PNode
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proc getConstExpr*(m: PSym, n: PNode): PNode
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# evaluates the constant expression or returns nil if it is no constant
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# expression
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proc evalOp*(m: TMagic, n, a, b, c: PNode): PNode
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@ -22,10 +22,7 @@ proc leValueConv*(a, b: PNode): bool
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proc newIntNodeT*(intVal: BiggestInt, n: PNode): PNode
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proc newFloatNodeT*(floatVal: BiggestFloat, n: PNode): PNode
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proc newStrNodeT*(strVal: string, n: PNode): PNode
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proc getInt*(a: PNode): biggestInt
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proc getFloat*(a: PNode): biggestFloat
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proc getStr*(a: PNode): string
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proc getStrOrChar*(a: PNode): string
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# implementation
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proc newIntNodeT(intVal: BiggestInt, n: PNode): PNode =
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@ -46,35 +43,6 @@ proc newStrNodeT(strVal: string, n: PNode): PNode =
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result.typ = n.typ
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result.info = n.info
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proc getInt(a: PNode): biggestInt =
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case a.kind
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of nkIntLit..nkInt64Lit: result = a.intVal
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else:
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internalError(a.info, "getInt")
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result = 0
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proc getFloat(a: PNode): biggestFloat =
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case a.kind
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of nkFloatLit..nkFloat64Lit: result = a.floatVal
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else:
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internalError(a.info, "getFloat")
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result = 0.0
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proc getStr(a: PNode): string =
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case a.kind
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of nkStrLit..nkTripleStrLit: result = a.strVal
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else:
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internalError(a.info, "getStr")
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result = ""
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proc getStrOrChar(a: PNode): string =
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case a.kind
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of nkStrLit..nkTripleStrLit: result = a.strVal
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of nkCharLit: result = chr(int(a.intVal)) & ""
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else:
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internalError(a.info, "getStrOrChar")
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result = ""
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proc enumValToString(a: PNode): string =
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var
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n: PNode
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@ -93,56 +61,35 @@ proc evalOp(m: TMagic, n, a, b, c: PNode): PNode =
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# b and c may be nil
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result = nil
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case m
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of mOrd:
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result = newIntNodeT(getOrdValue(a), n)
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of mChr:
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result = newIntNodeT(getInt(a), n)
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of mUnaryMinusI, mUnaryMinusI64:
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result = newIntNodeT(- getInt(a), n)
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of mUnaryMinusF64:
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result = newFloatNodeT(- getFloat(a), n)
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of mNot:
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result = newIntNodeT(1 - getInt(a), n)
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of mCard:
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result = newIntNodeT(nimsets.cardSet(a), n)
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of mBitnotI, mBitnotI64:
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result = newIntNodeT(not getInt(a), n)
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of mLengthStr:
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result = newIntNodeT(len(getStr(a)), n)
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of mLengthArray:
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result = newIntNodeT(lengthOrd(a.typ), n)
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of mLengthSeq, mLengthOpenArray:
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result = newIntNodeT(sonsLen(a), n) # BUGFIX
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of mUnaryPlusI, mUnaryPlusI64, mUnaryPlusF64:
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result = a # throw `+` away
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of mOrd: result = newIntNodeT(getOrdValue(a), n)
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of mChr: result = newIntNodeT(getInt(a), n)
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of mUnaryMinusI, mUnaryMinusI64: result = newIntNodeT(- getInt(a), n)
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of mUnaryMinusF64: result = newFloatNodeT(- getFloat(a), n)
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of mNot: result = newIntNodeT(1 - getInt(a), n)
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of mCard: result = newIntNodeT(nimsets.cardSet(a), n)
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of mBitnotI, mBitnotI64: result = newIntNodeT(not getInt(a), n)
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of mLengthStr: result = newIntNodeT(len(getStr(a)), n)
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of mLengthArray: result = newIntNodeT(lengthOrd(a.typ), n)
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of mLengthSeq, mLengthOpenArray: result = newIntNodeT(sonsLen(a), n) # BUGFIX
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of mUnaryPlusI, mUnaryPlusI64, mUnaryPlusF64: result = a # throw `+` away
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of mToFloat, mToBiggestFloat:
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result = newFloatNodeT(toFloat(int(getInt(a))), n)
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of mToInt, mToBiggestInt:
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result = newIntNodeT(system.toInt(getFloat(a)), n)
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of mAbsF64:
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result = newFloatNodeT(abs(getFloat(a)), n)
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of mToInt, mToBiggestInt: result = newIntNodeT(system.toInt(getFloat(a)), n)
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of mAbsF64: result = newFloatNodeT(abs(getFloat(a)), n)
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of mAbsI, mAbsI64:
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if getInt(a) >= 0: result = a
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else: result = newIntNodeT(- getInt(a), n)
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of mZe8ToI, mZe8ToI64, mZe16ToI, mZe16ToI64, mZe32ToI64, mZeIToI64:
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# byte(-128) = 1...1..1000_0000'64 --> 0...0..1000_0000'64
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result = newIntNodeT(getInt(a) and (`shl`(1, getSize(a.typ) * 8) - 1), n)
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of mToU8:
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result = newIntNodeT(getInt(a) and 0x000000FF, n)
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of mToU16:
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result = newIntNodeT(getInt(a) and 0x0000FFFF, n)
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of mToU32:
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result = newIntNodeT(getInt(a) and 0x00000000FFFFFFFF'i64, n)
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of mSucc:
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result = newIntNodeT(getOrdValue(a) + getInt(b), n)
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of mPred:
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result = newIntNodeT(getOrdValue(a) - getInt(b), n)
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of mAddI, mAddI64:
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result = newIntNodeT(getInt(a) + getInt(b), n)
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of mSubI, mSubI64:
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result = newIntNodeT(getInt(a) - getInt(b), n)
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of mMulI, mMulI64:
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result = newIntNodeT(getInt(a) * getInt(b), n)
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of mToU8: result = newIntNodeT(getInt(a) and 0x000000FF, n)
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of mToU16: result = newIntNodeT(getInt(a) and 0x0000FFFF, n)
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of mToU32: result = newIntNodeT(getInt(a) and 0x00000000FFFFFFFF'i64, n)
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of mSucc: result = newIntNodeT(getOrdValue(a) + getInt(b), n)
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of mPred: result = newIntNodeT(getOrdValue(a) - getInt(b), n)
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of mAddI, mAddI64: result = newIntNodeT(getInt(a) + getInt(b), n)
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of mSubI, mSubI64: result = newIntNodeT(getInt(a) - getInt(b), n)
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of mMulI, mMulI64: result = newIntNodeT(getInt(a) * getInt(b), n)
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of mMinI, mMinI64:
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if getInt(a) > getInt(b): result = newIntNodeT(getInt(b), n)
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else: result = newIntNodeT(getInt(a), n)
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@ -163,16 +110,11 @@ proc evalOp(m: TMagic, n, a, b, c: PNode): PNode =
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of tyInt32: result = newIntNodeT(int32(getInt(a)) shr int32(getInt(b)), n)
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of tyInt64, tyInt: result = newIntNodeT(`shr`(getInt(a), getInt(b)), n)
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else: InternalError(n.info, "constant folding for shl")
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of mDivI, mDivI64:
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result = newIntNodeT(getInt(a) div getInt(b), n)
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of mModI, mModI64:
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result = newIntNodeT(getInt(a) mod getInt(b), n)
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of mAddF64:
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result = newFloatNodeT(getFloat(a) + getFloat(b), n)
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of mSubF64:
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result = newFloatNodeT(getFloat(a) - getFloat(b), n)
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of mMulF64:
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result = newFloatNodeT(getFloat(a) * getFloat(b), n)
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of mDivI, mDivI64: result = newIntNodeT(getInt(a) div getInt(b), n)
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of mModI, mModI64: result = newIntNodeT(getInt(a) mod getInt(b), n)
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of mAddF64: result = newFloatNodeT(getFloat(a) + getFloat(b), n)
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of mSubF64: result = newFloatNodeT(getFloat(a) - getFloat(b), n)
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of mMulF64: result = newFloatNodeT(getFloat(a) * getFloat(b), n)
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of mDivF64:
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if getFloat(b) == 0.0:
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if getFloat(a) == 0.0: result = newFloatNodeT(NaN, n)
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@ -185,50 +127,33 @@ proc evalOp(m: TMagic, n, a, b, c: PNode): PNode =
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of mMinF64:
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if getFloat(a) > getFloat(b): result = newFloatNodeT(getFloat(b), n)
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else: result = newFloatNodeT(getFloat(a), n)
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of mIsNil:
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result = newIntNodeT(ord(a.kind == nkNilLit), n)
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of mIsNil: result = newIntNodeT(ord(a.kind == nkNilLit), n)
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of mLtI, mLtI64, mLtB, mLtEnum, mLtCh:
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result = newIntNodeT(ord(getOrdValue(a) < getOrdValue(b)), n)
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of mLeI, mLeI64, mLeB, mLeEnum, mLeCh:
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result = newIntNodeT(ord(getOrdValue(a) <= getOrdValue(b)), n)
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of mEqI, mEqI64, mEqB, mEqEnum, mEqCh:
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result = newIntNodeT(ord(getOrdValue(a) == getOrdValue(b)), n) # operators for floats
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of mLtF64:
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result = newIntNodeT(ord(getFloat(a) < getFloat(b)), n)
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of mLeF64:
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result = newIntNodeT(ord(getFloat(a) <= getFloat(b)), n)
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of mEqF64:
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result = newIntNodeT(ord(getFloat(a) == getFloat(b)), n) # operators for strings
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of mLtStr:
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result = newIntNodeT(ord(getStr(a) < getStr(b)), n)
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of mLeStr:
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result = newIntNodeT(ord(getStr(a) <= getStr(b)), n)
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of mEqStr:
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result = newIntNodeT(ord(getStr(a) == getStr(b)), n)
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result = newIntNodeT(ord(getOrdValue(a) == getOrdValue(b)), n)
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of mLtF64: result = newIntNodeT(ord(getFloat(a) < getFloat(b)), n)
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of mLeF64: result = newIntNodeT(ord(getFloat(a) <= getFloat(b)), n)
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of mEqF64: result = newIntNodeT(ord(getFloat(a) == getFloat(b)), n)
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of mLtStr: result = newIntNodeT(ord(getStr(a) < getStr(b)), n)
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of mLeStr: result = newIntNodeT(ord(getStr(a) <= getStr(b)), n)
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of mEqStr: result = newIntNodeT(ord(getStr(a) == getStr(b)), n)
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of mLtU, mLtU64:
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result = newIntNodeT(ord(`<%`(getOrdValue(a), getOrdValue(b))), n)
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of mLeU, mLeU64:
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result = newIntNodeT(ord(`<=%`(getOrdValue(a), getOrdValue(b))), n)
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of mBitandI, mBitandI64, mAnd:
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result = newIntNodeT(getInt(a) and getInt(b), n)
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of mBitorI, mBitorI64, mOr:
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result = newIntNodeT(getInt(a) or getInt(b), n)
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of mBitxorI, mBitxorI64, mXor:
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result = newIntNodeT(getInt(a) xor getInt(b), n)
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of mAddU, mAddU64:
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result = newIntNodeT(`+%`(getInt(a), getInt(b)), n)
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of mSubU, mSubU64:
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result = newIntNodeT(`-%`(getInt(a), getInt(b)), n)
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of mMulU, mMulU64:
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result = newIntNodeT(`*%`(getInt(a), getInt(b)), n)
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of mModU, mModU64:
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result = newIntNodeT(`%%`(getInt(a), getInt(b)), n)
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of mDivU, mDivU64:
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result = newIntNodeT(`/%`(getInt(a), getInt(b)), n)
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of mLeSet:
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result = newIntNodeT(Ord(containsSets(a, b)), n)
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of mEqSet:
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result = newIntNodeT(Ord(equalSets(a, b)), n)
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of mBitandI, mBitandI64, mAnd: result = newIntNodeT(getInt(a) and getInt(b), n)
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of mBitorI, mBitorI64, mOr: result = newIntNodeT(getInt(a) or getInt(b), n)
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of mBitxorI, mBitxorI64, mXor: result = newIntNodeT(getInt(a) xor getInt(b), n)
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of mAddU, mAddU64: result = newIntNodeT(`+%`(getInt(a), getInt(b)), n)
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of mSubU, mSubU64: result = newIntNodeT(`-%`(getInt(a), getInt(b)), n)
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of mMulU, mMulU64: result = newIntNodeT(`*%`(getInt(a), getInt(b)), n)
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of mModU, mModU64: result = newIntNodeT(`%%`(getInt(a), getInt(b)), n)
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of mDivU, mDivU64: result = newIntNodeT(`/%`(getInt(a), getInt(b)), n)
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of mLeSet: result = newIntNodeT(Ord(containsSets(a, b)), n)
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of mEqSet: result = newIntNodeT(Ord(equalSets(a, b)), n)
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of mLtSet:
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result = newIntNodeT(Ord(containsSets(a, b) and not equalSets(a, b)), n)
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of mMulSet:
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@ -243,32 +168,24 @@ proc evalOp(m: TMagic, n, a, b, c: PNode): PNode =
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of mSymDiffSet:
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result = nimsets.symdiffSets(a, b)
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result.info = n.info
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of mConStrStr:
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result = newStrNodeT(getStrOrChar(a) & getStrOrChar(b), n)
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of mInSet:
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result = newIntNodeT(Ord(inSet(a, b)), n)
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of mConStrStr: result = newStrNodeT(getStrOrChar(a) & getStrOrChar(b), n)
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of mInSet: result = newIntNodeT(Ord(inSet(a, b)), n)
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of mRepr:
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# BUGFIX: we cannot eval mRepr here. But this means that it is not
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# available for interpretation. I don't know how to fix this.
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#result := newStrNodeT(renderTree(a, {@set}[renderNoComments]), n);
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of mIntToStr, mInt64ToStr:
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result = newStrNodeT($(getOrdValue(a)), n)
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of mIntToStr, mInt64ToStr: result = newStrNodeT($(getOrdValue(a)), n)
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of mBoolToStr:
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if getOrdValue(a) == 0: result = newStrNodeT("false", n)
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else: result = newStrNodeT("true", n)
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of mCopyStr:
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result = newStrNodeT(copy(getStr(a), int(getOrdValue(b)) + 0), n)
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of mCopyStr: result = newStrNodeT(copy(getStr(a), int(getOrdValue(b))), n)
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of mCopyStrLast:
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result = newStrNodeT(copy(getStr(a), int(getOrdValue(b)) + 0,
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int(getOrdValue(c)) + 0), n)
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of mFloatToStr:
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result = newStrNodeT($(getFloat(a)), n)
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of mCStrToStr, mCharToStr:
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result = newStrNodeT(getStrOrChar(a), n)
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of mStrToStr:
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result = a
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of mEnumToStr:
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result = newStrNodeT(enumValToString(a), n)
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result = newStrNodeT(copy(getStr(a), int(getOrdValue(b)),
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int(getOrdValue(c))), n)
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of mFloatToStr: result = newStrNodeT($(getFloat(a)), n)
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of mCStrToStr, mCharToStr: result = newStrNodeT(getStrOrChar(a), n)
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of mStrToStr: result = a
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of mEnumToStr: result = newStrNodeT(enumValToString(a), n)
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of mArrToSeq:
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result = copyTree(a)
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result.typ = n.typ
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@ -278,15 +195,13 @@ proc evalOp(m: TMagic, n, a, b, c: PNode): PNode =
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else: InternalError(a.info, "evalOp(" & $m & ')')
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proc getConstIfExpr(c: PSym, n: PNode): PNode =
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var it, e: PNode
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result = nil
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for i in countup(0, sonsLen(n) - 1):
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it = n.sons[i]
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var it = n.sons[i]
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case it.kind
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of nkElifExpr:
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e = getConstExpr(c, it.sons[0])
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if e == nil:
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return nil
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var e = getConstExpr(c, it.sons[0])
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if e == nil: return nil
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if getOrdValue(e) != 0:
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if result == nil:
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result = getConstExpr(c, it.sons[1])
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@ -297,10 +212,9 @@ proc getConstIfExpr(c: PSym, n: PNode): PNode =
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proc partialAndExpr(c: PSym, n: PNode): PNode =
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# partial evaluation
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var a, b: PNode
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result = n
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a = getConstExpr(c, n.sons[1])
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b = getConstExpr(c, n.sons[2])
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var a = getConstExpr(c, n.sons[1])
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var b = getConstExpr(c, n.sons[2])
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if a != nil:
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if getInt(a) == 0: result = a
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elif b != nil: result = b
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@ -311,10 +225,9 @@ proc partialAndExpr(c: PSym, n: PNode): PNode =
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proc partialOrExpr(c: PSym, n: PNode): PNode =
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# partial evaluation
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var a, b: PNode
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result = n
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a = getConstExpr(c, n.sons[1])
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b = getConstExpr(c, n.sons[2])
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var a = getConstExpr(c, n.sons[1])
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var b = getConstExpr(c, n.sons[2])
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if a != nil:
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if getInt(a) != 0: result = a
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elif b != nil: result = b
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@ -338,20 +251,16 @@ proc leValueConv(a, b: PNode): bool =
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else: InternalError(a.info, "leValueConv")
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else: InternalError(a.info, "leValueConv")
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proc getConstExpr(module: PSym, n: PNode): PNode =
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var
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s: PSym
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a, b, c: PNode
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proc getConstExpr(m: PSym, n: PNode): PNode =
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result = nil
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case n.kind
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of nkSym:
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s = n.sym
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var s = n.sym
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if s.kind == skEnumField:
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result = newIntNodeT(s.position, n)
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elif (s.kind == skConst):
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case s.magic
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of mIsMainModule: result = newIntNodeT(ord(sfMainModule in module.flags),
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n)
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of mIsMainModule: result = newIntNodeT(ord(sfMainModule in m.flags), n)
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of mCompileDate: result = newStrNodeT(times.getDateStr(), n)
|
||||
of mCompileTime: result = newStrNodeT(times.getClockStr(), n)
|
||||
of mNimrodVersion: result = newStrNodeT(VersionAsString, n)
|
||||
|
|
@ -364,29 +273,28 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
of mNaN: result = newFloatNodeT(NaN, n)
|
||||
of mInf: result = newFloatNodeT(Inf, n)
|
||||
of mNegInf: result = newFloatNodeT(NegInf, n)
|
||||
else:
|
||||
result = copyTree(s.ast) # BUGFIX
|
||||
else: result = copyTree(s.ast)
|
||||
elif s.kind in {skProc, skMethod}: # BUGFIX
|
||||
result = n
|
||||
of nkCharLit..nkNilLit:
|
||||
result = copyNode(n)
|
||||
of nkIfExpr:
|
||||
result = getConstIfExpr(module, n)
|
||||
result = getConstIfExpr(m, n)
|
||||
of nkCall, nkCommand, nkCallStrLit:
|
||||
if (n.sons[0].kind != nkSym): return
|
||||
s = n.sons[0].sym
|
||||
var s = n.sons[0].sym
|
||||
if (s.kind != skProc): return
|
||||
try:
|
||||
case s.magic
|
||||
of mNone:
|
||||
return # XXX: if it has no sideEffect, it should be evaluated
|
||||
return # XXX: if it has no sideEffect, it should be evaluated
|
||||
of mSizeOf:
|
||||
a = n.sons[1]
|
||||
var a = n.sons[1]
|
||||
if computeSize(a.typ) < 0:
|
||||
liMessage(a.info, errCannotEvalXBecauseIncompletelyDefined, "sizeof")
|
||||
if a.typ.kind in {tyArray, tyObject, tyTuple}:
|
||||
result = nil # XXX: size computation for complex types
|
||||
# is still wrong
|
||||
result = nil
|
||||
# XXX: size computation for complex types is still wrong
|
||||
else:
|
||||
result = newIntNodeT(getSize(a.typ), n)
|
||||
of mLow:
|
||||
|
|
@ -396,13 +304,14 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
{tyOpenArray, tySequence, tyString}):
|
||||
result = newIntNodeT(lastOrd(skipTypes(n.sons[1].typ, abstractVar)), n)
|
||||
else:
|
||||
a = getConstExpr(module, n.sons[1])
|
||||
var a = getConstExpr(m, n.sons[1])
|
||||
var b, c: PNode
|
||||
if a == nil: return
|
||||
if sonsLen(n) > 2:
|
||||
b = getConstExpr(module, n.sons[2])
|
||||
b = getConstExpr(m, n.sons[2])
|
||||
if b == nil: return
|
||||
if sonsLen(n) > 3:
|
||||
c = getConstExpr(module, n.sons[3])
|
||||
c = getConstExpr(m, n.sons[3])
|
||||
if c == nil: return
|
||||
else:
|
||||
b = nil
|
||||
|
|
@ -412,22 +321,21 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
except EDivByZero:
|
||||
liMessage(n.info, errConstantDivisionByZero)
|
||||
of nkAddr:
|
||||
a = getConstExpr(module, n.sons[0])
|
||||
var a = getConstExpr(m, n.sons[0])
|
||||
if a != nil:
|
||||
result = n
|
||||
n.sons[0] = a
|
||||
of nkBracket:
|
||||
result = copyTree(n)
|
||||
for i in countup(0, sonsLen(n) - 1):
|
||||
a = getConstExpr(module, n.sons[i])
|
||||
if a == nil:
|
||||
return nil
|
||||
var a = getConstExpr(m, n.sons[i])
|
||||
if a == nil: return nil
|
||||
result.sons[i] = a
|
||||
incl(result.flags, nfAllConst)
|
||||
of nkRange:
|
||||
a = getConstExpr(module, n.sons[0])
|
||||
var a = getConstExpr(m, n.sons[0])
|
||||
if a == nil: return
|
||||
b = getConstExpr(module, n.sons[1])
|
||||
var b = getConstExpr(m, n.sons[1])
|
||||
if b == nil: return
|
||||
result = copyNode(n)
|
||||
addSon(result, a)
|
||||
|
|
@ -435,9 +343,8 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
of nkCurly:
|
||||
result = copyTree(n)
|
||||
for i in countup(0, sonsLen(n) - 1):
|
||||
a = getConstExpr(module, n.sons[i])
|
||||
if a == nil:
|
||||
return nil
|
||||
var a = getConstExpr(m, n.sons[i])
|
||||
if a == nil: return nil
|
||||
result.sons[i] = a
|
||||
incl(result.flags, nfAllConst)
|
||||
of nkPar:
|
||||
|
|
@ -445,19 +352,17 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
result = copyTree(n)
|
||||
if (sonsLen(n) > 0) and (n.sons[0].kind == nkExprColonExpr):
|
||||
for i in countup(0, sonsLen(n) - 1):
|
||||
a = getConstExpr(module, n.sons[i].sons[1])
|
||||
if a == nil:
|
||||
return nil
|
||||
var a = getConstExpr(m, n.sons[i].sons[1])
|
||||
if a == nil: return nil
|
||||
result.sons[i].sons[1] = a
|
||||
else:
|
||||
for i in countup(0, sonsLen(n) - 1):
|
||||
a = getConstExpr(module, n.sons[i])
|
||||
if a == nil:
|
||||
return nil
|
||||
var a = getConstExpr(m, n.sons[i])
|
||||
if a == nil: return nil
|
||||
result.sons[i] = a
|
||||
incl(result.flags, nfAllConst)
|
||||
of nkChckRangeF, nkChckRange64, nkChckRange:
|
||||
a = getConstExpr(module, n.sons[0])
|
||||
var a = getConstExpr(m, n.sons[0])
|
||||
if a == nil: return
|
||||
if leValueConv(n.sons[1], a) and leValueConv(a, n.sons[2]):
|
||||
result = a # a <= x and x <= b
|
||||
|
|
@ -467,12 +372,12 @@ proc getConstExpr(module: PSym, n: PNode): PNode =
|
|||
msgKindToString(errIllegalConvFromXtoY),
|
||||
[typeToString(n.sons[0].typ), typeToString(n.typ)]))
|
||||
of nkStringToCString, nkCStringToString:
|
||||
a = getConstExpr(module, n.sons[0])
|
||||
var a = getConstExpr(m, n.sons[0])
|
||||
if a == nil: return
|
||||
result = a
|
||||
result.typ = n.typ
|
||||
of nkHiddenStdConv, nkHiddenSubConv, nkConv, nkCast:
|
||||
a = getConstExpr(module, n.sons[1])
|
||||
var a = getConstExpr(m, n.sons[1])
|
||||
if a == nil: return
|
||||
case skipTypes(n.typ, abstractRange).kind
|
||||
of tyInt..tyInt64:
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue