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xlator_Swift.py
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xlator_Swift.py
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#xlator_Swift.py
import progSpec
import codeDogParser
from xlator import Xlator
from progSpec import cdlog, cdErr, isStruct
from codeGenerator import CodeGenerator
class Xlator_Swift(Xlator):
codeGen = CodeGenerator()
LanguageName = "Swift"
BuildStrPrefix = ""
fileExtension = ".swift"
typeForCounterInt = "var"
GlobalVarPrefix = ""
PtrConnector = "!." # Name segment connector for pointers.
ObjConnector = "." # Name segment connector for classes.
NameSegConnector = "."
NameSegFuncConnector = "()."
modeIdxType = 'int'
doesLangHaveGlobals = True
funcBodyIndent = " "
funcsDefInClass = True
MakeConstructors = True
blockPrefix = "do"
usePrefixOnStatics = True
iteratorsUseOperators = True
renderGenerics = "True"
renameInitFuncs = True
useAllCtorArgs = False
hasMacros = False
useNestedClasses = False
nullValue = "nil"
langSpecificImpl = {
"Equatable": "Equatable",
}
def getLangSpecificImplements(self, implName):
if implName in self.langSpecificImpl:
return self.langSpecificImpl[implName]
return None
###################################################### CONTAINERS
def codeArrayIndex(self, idx, containerType, LorR_Val, previousSegName, idxTypeSpec):
fTypeKW = progSpec.fieldTypeKeyword(containerType)
if (fTypeKW == 'string'):
S= '[index: '+idx+']'
else:
fieldDefAt = self.codeGen.CheckObjectVars(fTypeKW, "at", "")
if fieldDefAt: S= '.at(' + idx +')'
else: S= '[' + idx +']'
return S
###################################################### CONTAINER REPETITIONS
def codeRangeSpec(self, traversalMode, ctrType, repName, S_low, S_hi, indent):
if(traversalMode=='Forward' or traversalMode==None):
S = indent + "for "+ repName+' in '+ S_low + "..<Int(" + S_hi + "){\n"
elif(traversalMode=='Backward'):
S = indent + "for " + repName + " in stride(from:"+ S_hi+"-1" + ", through: " + S_low + ", by: -1){\n"
return (S)
def getIdxType(self, tSpec):
progSpec.isOldContainerTempFuncErr(tSpec,"xlator_Swift.getIdxType()")
idxType = ''
if progSpec.isNewContainerTempFunc(tSpec):
ctnrTSpec = progSpec.getContainerSpec(tSpec)
if 'indexType' in ctnrTSpec:
if 'IDXowner' in ctnrTSpec['indexType']:
idxOwner = ctnrTSpec['indexType']['IDXowner'][0]
idxType = ctnrTSpec['indexType']['idxBaseType'][0][0]
idxType = self.applyOwner(idxOwner, idxType, '')
else: idxType=ctnrTSpec['indexType']['idxBaseType'][0][0]
else: idxType = progSpec.getNewContainerFirstElementTypeTempFunc(tSpec)
return idxType
def iterateRangeFromTo(self, classes,localVarsAlloc,StartKey,EndKey,ctnrTSpec,repName,ctnrName,indent):
willBeModifiedDuringTraversal=True # TODO: Set this programatically later.
[datastructID, __ctnrOwner]=progSpec.getContainerType_Owner(ctnrTSpec)
idxTypeKW = self.getIdxType(ctnrTSpec)
idxTypeKW = self.getIdxType(ctnrTSpec)
actionText = ""
loopCntrName = repName+'_key'
itrIncStr = ""
firstOwner = progSpec.getContainerFirstElementOwner(ctnrTSpec)
firstType = progSpec.getContainerFirstElementType(ctnrTSpec)
firstTSpec = {'owner':firstOwner, 'fieldType':firstType}
reqTagList = progSpec.getReqTagList(ctnrTSpec)
itrTSpec = self.codeGen.getDataStructItrTSpec(datastructID)
itrTypeKW = progSpec.fieldTypeKeyword(itrTSpec) + ' '
itrName = repName + "Itr"
containerCat = progSpec.getContaineCategory(self.codeGen.classStore, ctnrTSpec)
if containerCat=="Map" or containerCat=="Multimap":
valueFieldType = progSpec.fieldTypeKeyword(ctnrTSpec)
if(reqTagList != None):
firstTSpec['owner'] = progSpec.getOwner(reqTagList[1])
firstTSpec['fieldType'] = progSpec.fieldTypeKeyword(reqTagList[1])
idxTypeKW = progSpec.fieldTypeKeyword(reqTagList[0])
valueFieldType = progSpec.fieldTypeKeyword(reqTagList[1])
keyVarSpec = {'owner':ctnrTSpec['owner'], 'fieldType':firstType, 'codeConverter':(repName+'.first')}
firstTSpec['codeConverter'] = (repName+'.value')
localVarsAlloc.append([repName+'_key', keyVarSpec]) # Tracking local vars for scope
localVarsAlloc.append([repName, firstTSpec]) # Tracking local vars for scope
itrDeclStr = indent + 'var '+itrName+":"+itrTypeKW+' = '+ctnrName+'.lower_bound('+StartKey+')\n'
localVarsAlloc.append([itrName, itrTypeKW])
endItrName = repName + "EndItr"
endItrStr = indent + 'var ' + endItrName + ':'+itrTypeKW+' = '+ctnrName+'.upper_bound('+EndKey+')\n'
itrIncStr = indent + " " + itrName + " = " + itrName + ".__inc()\n"
actionText += itrDeclStr + endItrStr
actionText += (indent + 'while ' + itrName + '.node !== '+endItrName+'.node {\n')
actionText += (indent + " var " + repName + " = " + itrName + ".node\n")
elif datastructID=='List' and not willBeModifiedDuringTraversal: pass;
elif datastructID=='List' and willBeModifiedDuringTraversal: pass;
else: cdErr("DSID iterateRangeFromTo:"+datastructID+" "+containerCat)
return [actionText, loopCntrName]
def iterateContainerStr(self, classes,localVarsAlloc,ctnrTSpec,repName,ctnrName,isBackward,indent,genericArgs):
#TODO: handle isBackward
willBeModifiedDuringTraversal=True # TODO: Set this programatically later.
[datastructID, __ctnrOwner]=progSpec.getContainerType_Owner(ctnrTSpec)
idxTypeKW = self.getIdxType(ctnrTSpec)
actionText = ""
loopCntrName = repName+'_key'
itrIncStr = ""
firstOwner = progSpec.getContainerFirstElementOwner(ctnrTSpec)
firstType = progSpec.getContainerFirstElementType(ctnrTSpec)
firstTSpec = {'owner':firstOwner, 'fieldType':firstType}
reqTagList = progSpec.getReqTagList(ctnrTSpec)
itrTSpec = self.codeGen.getDataStructItrTSpec(datastructID)
itrTypeKW = progSpec.fieldTypeKeyword(itrTSpec)
itrOwner = progSpec.getOwner(itrTSpec)
itrName = repName + "Itr"
containerCat = progSpec.getContaineCategory(self.codeGen.classStore, ctnrTSpec)
[LDeclP, RDeclP, LDeclA, RDeclA] = self.ChoosePtrDecorationForSimpleCase(firstOwner)
[LNodeP, RNodeP, LNodeA, RNodeA] = self.ChoosePtrDecorationForSimpleCase(itrOwner)
if containerCat=='Map':
reqTagStr = self.getReqTagString(classes, ctnrTSpec)
if(reqTagList != None):
firstTSpec['owner'] = progSpec.getOwner(reqTagList[1])
firstTSpec['fieldType'] = progSpec.fieldTypeKeyword(reqTagList[1])
keyVarSpec = {'owner':firstOwner, 'fieldType':firstType, 'codeConverter':(repName+'!.key')}
firstTSpec['codeConverter'] = (repName+'!.value')
itrTypeKW = self.codeGen.convertType(itrTSpec, 'var', genericArgs)+' '
itrDeclStr = indent + 'var '+itrName+":"+itrTypeKW+' = '+ctnrName+'.front()\n'
localVarsAlloc.append([itrName, itrTypeKW])
endItrName = repName + "EndItr"
endItrStr = indent + 'var ' + endItrName + ':'+itrTypeKW+' = '+ctnrName+'.end()\n'
itrIncStr = indent + " " + itrName + " = " + itrName + ".__inc()\n"
actionText += itrDeclStr + endItrStr
actionText += (indent + 'while ' + itrName + '.node !== '+endItrName+'.node {\n')
actionText += (indent + " var " + repName + " = " + itrName + ".node\n")
# TODO: increment ITR
elif containerCat=="List":
if willBeModifiedDuringTraversal:
idxTypeKW = self.adjustBaseTypes(idxTypeKW, False)
containedOwner = progSpec.getOwner(ctnrTSpec)
keyVarSpec = {'owner':containedOwner, 'fieldType':firstType}
loopVarName=repName+"Idx";
if(isBackward):
actionText += (indent + "for " + repName+' in '+ ctnrName +".reversed() {\n")
else:
actionText += (indent + "for " + loopVarName + " in 0..<" + ctnrName+".count {\n"
+ indent+" var "+repName + ':' + idxTypeKW + " = "+ctnrName+"["+loopVarName+"];\n")
else:
keyVarSpec = {'owner':'me', 'fieldType':'Int'}
if(isBackward):
actionText += (indent + "for " + repName+' in ('+ ctnrName +".count - 1).stride(through: 0, by: -1) {\n")
else:
actionText += (indent + "for " + repName+' in '+ ctnrName + " {\n")
elif containerCat=='string':
keyVarSpec = {'owner':'me', 'fieldType':'char'}
firstTSpec = {'owner':'me', 'fieldType':'char'}
actionText += indent + "for "+ repName + " in " + ctnrName + "{\n"
else: cdErr("iterateContainerStr() datastructID = " + datastructID)
localVarsAlloc.append([loopCntrName, keyVarSpec]) # Tracking local vars for scope
localVarsAlloc.append([repName, firstTSpec]) # Tracking local vars for scope
return [actionText, loopCntrName, itrIncStr]
def codeSwitchExpr(self, switchKeyExpr, switchKeyTypeSpec):
return switchKeyExpr
def codeSwitchCase(self, caseKeyValue, caseKeyTypeSpec):
return caseKeyValue
###### Routines to track types of identifiers and to look up type based on identifier.
def implOperatorsAsFuncs(self, fTypeKW):
return False
def adjustBaseTypes(self, fType, isContainer):
langType = ''
if(isinstance(fType, str)):
if(fType=='uint8' or fType=='uint16'or fType=='uint32'): return 'UInt32'
elif(fType=='int8' or fType=='int16' or fType=='int32'): return 'Int32'
elif(fType=='uint64'): return 'UInt64'
elif(fType=='int64'): return 'Int64'
elif(fType=='int'): return 'Int'
elif(fType=='bool'): return 'Bool'
elif(fType=='void'): return 'Void'
elif(fType=='float'): return 'Float'
elif(fType=='double'): return 'Double'
elif(fType=='string'): return 'String'
elif(fType=='char'): return 'Character'
langType=progSpec.flattenObjectName(fType)
else: langType=progSpec.flattenObjectName(fType[0])
return langType
def applyIterator(self, langType, itrTypeKW, varMode):
return langType
def applyOwner(self, owner, langType, varMode):
# varMode is 'var' or 'arg' or 'alloc'.
if owner=='me': langType = langType
elif owner=='my': langType = langType
elif owner=='our': langType = langType
elif owner=='their': langType = langType
elif owner=='itr': langType = langType
elif owner=='const': langType = langType
elif owner=='we': langType += 'public static'
else: cdErr("ERROR: Owner of type not valid '" + owner + "'")
return langType
def getUnwrappedClassOwner(self, classes, tSpec, fType, varMode, ownerIn):
ownerOut = ownerIn
ownerOut = progSpec.getOwner(tSpec)
baseType = progSpec.isWrappedType(classes, fType)
if baseType!=None: # TODO: When this is all tested and stable, un-hardcode and optimize this!!!!!
if 'ownerMe' in baseType:ownerOut = 'their'
else:
if varMode=='var':ownerOut= progSpec.getOwner(baseType) # TODO: remove this condition: accomodates old list type generated in stringStructs
else: ownerOut = ownerIn
return ownerOut
def getReqTagString(self, classes, tSpec):
reqTagStr = ""
reqTagList = progSpec.getReqTagList(tSpec)
if(reqTagList != None):
reqTagStr = "<"
count = 0
for reqTag in reqTagList:
reqOwnr = progSpec.getOwner(reqTag)
varTypeKW = progSpec.fieldTypeKeyword(reqTag)
unwrappedOwner=self.getUnwrappedClassOwner(classes, tSpec, varTypeKW, 'alloc', reqOwnr)
unwrappedKW = progSpec.getUnwrappedClassFieldTypeKeyWord(classes, varTypeKW)
reqType = self.adjustBaseTypes(unwrappedKW, True)
if(count>0): reqTagStr += ", "
reqTagStr += reqType
count += 1
reqTagStr += ">"
return reqTagStr
def makePtrOpt(self, tSpec):
# Make pointer field variables optionals
fTypeKW = progSpec.fieldTypeKeyword(tSpec)
if progSpec.typeIsPointer(tSpec) and (fTypeKW != 'string' or fTypeKW != 'String'): return('!')
return('')
def recodeStringFunctions(self, name, tSpec, lenParams):
if name == "size":
tSpec['codeConverter']='%0.count'
tSpec['fieldType']='int'
elif name == "subStr":
if lenParams==1: tSpec['codeConverter']='%0.substring(from:%1, to:%0.count)'
else: tSpec['codeConverter']='substring(from:%1, to:%2)'
return [name, tSpec]
def langStringFormatterCommand(self, fmtStr, argStr):
S='String(format:'+'"'+ fmtStr +'"'+ argStr +')'
return S
def LanguageSpecificDecorations(self, S, tSpec, owner, LorRorP_Val):
if tSpec!= 0 and progSpec.typeIsPointer(tSpec) and tSpec['owner']!='itr' and not 'codeConverter' in tSpec:
if LorRorP_Val == "PARAM" and S=="nil":
cvrtType = self.codeGen.convertType(tSpec, 'arg', genericArgs)
S = 'Optional<'+cvrtType+'>.none'
return S
def convertToInt(self, S, tSpec):
return S
def checkForTypeCastNeed(self, lhsTSpec, rhsTSpec, RHS):
LTypeKW = progSpec.fieldTypeKeyword(lhsTSpec)
RTypeKW = progSpec.fieldTypeKeyword(rhsTSpec)
if LTypeKW == 'bool'or LTypeKW == 'boolean':
if progSpec.typeIsPointer(rhsTSpec):
return '(' + RHS + ' == nil)'
if (RTypeKW=='int' or RTypeKW=='flag'):
if RHS[0]=='!': return '(' + codeStr[1:] + ' == 0)'
else: return '(' + RHS + ' != 0)'
if RHS == "0": return "false"
if RHS == "1": return "true"
elif LTypeKW == 'uint64' and RTypeKW=='int':
RHS = 'UInt64('+RHS+')'
elif LTypeKW == 'double' and RTypeKW=='int':
RHS = 'Double('+RHS+')'
elif LTypeKW == 'int' and RTypeKW=='char':
RHS = RHS+'.asciiValue'
elif LTypeKW == 'string' and RTypeKW=='char':
RHS = "String(" + RHS+ ")"
#elif LTypeKW != RTypeKW and LTypeKW != "mode" and LTypeKW != "flag" and RTypeKW != "ERROR" and LTypeKW != "struct" and LTypeKW != "bool":
return RHS
def getTheDerefPtrMods(self, itemTypeSpec):
if itemTypeSpec!=None and isinstance(itemTypeSpec, dict) and 'owner' in itemTypeSpec:
if progSpec.isNewContainerTempFunc(itemTypeSpec): return ['', '', False]
if progSpec.typeIsPointer(itemTypeSpec):
owner=progSpec.getOwner(itemTypeSpec)
if progSpec.isNewContainerTempFunc(itemTypeSpec):
if owner=='itr':
# OLD: ctnrCat = progSpec.getDatastructID(itemTypeSpec)
cdErr("####### TODO: needs to work with new container type #######")
ctnrCat = progSpec.getContaineCategory(self.codeGen.classStore, itemTypeSpec) # NEW
if ctnrCat =='map' or ctnrCat == 'multimap':
return ['', '', False]
# OPTIONALS
return ['', '!', False]
else:
if owner!='itr':
# OPTIONALS
return ['', '!', True]
return ['', '', False]
def derefPtr(self, varRef, itemTypeSpec):
if varRef=='NULL': return varRef
[leftMod, rightMod, isDerefd] = self.getTheDerefPtrMods(itemTypeSpec)
S = leftMod + varRef + rightMod
return [S, isDerefd]
def ChoosePtrDecorationForSimpleCase(self, owner):
if(owner=='our' or owner=='my' or owner=='their'):
# OPTIONALS
return ['','', '', '!']
else: return ['','', '','']
def chooseVirtualRValOwner(self, LVAL, RVAL):
# Returns left and right text decorations for RHS of function arguments, return values, etc.
if RVAL==0 or RVAL==None or isinstance(RVAL, str): return ['',''] # This happens e.g., string.size() # TODO: fix this.
if LVAL==0 or LVAL==None or isinstance(LVAL, str): return ['', '']
LeftOwner =progSpec.getOwner(LVAL)
RightOwner=progSpec.getOwner(RVAL)
if LeftOwner == RightOwner: return ["", ""]
if LeftOwner!='itr' and RightOwner=='itr':
return ["", ""]
if LeftOwner=='me' and progSpec.typeIsPointer(RVAL):
return ['', '!'] # OPTIONALS
if progSpec.typeIsPointer(LVAL) and RightOwner=='me':
return ['', '']
#if LeftOwner=='their' and (RightOwner=='our' or RightOwner=='my'): return ['','.get()']
return ['','']
def determinePtrConfigForNewVars(self, LSpec, RSpec, useCtor):
return ['','']
def determinePtrConfigForAssignments(self, LVAL, RVAL, assignTag, codeStr):
#TODO: make test case
# Returns left and right text decorations for both LHS and RHS of assignment
if RVAL==0 or RVAL==None or isinstance(RVAL, str): return ['','', '',''] # This happens e.g., string.size() # TODO: fix this.
if LVAL==0 or LVAL==None or isinstance(LVAL, str): return ['','', '','']
LeftOwner =progSpec.getOwner(LVAL)
RightOwner=progSpec.getOwner(RVAL)
if not isinstance(assignTag, str):
assignTag = assignTag[0]
if progSpec.typeIsPointer(LVAL) and progSpec.typeIsPointer(RVAL):
# OPTIONALS
if assignTag=='deep' :return ['','!', '','!']
elif LeftOwner=='their' and (RightOwner=='our' or RightOwner=='my'): return ['','', '','']
else: return ['','', '', '']
if LeftOwner == RightOwner: return ['','', '','']
if LeftOwner=='me' and progSpec.typeIsPointer(RVAL):
[leftMod, rightMod, isDerefd] = self.getTheDerefPtrMods(RVAL)
# OPTIONALS
return ['','', leftMod, rightMod]
if progSpec.typeIsPointer(LVAL) and RightOwner=='me':
# OPTIONALS
if assignTag!="" or assignTag=='deep':return ['','!', '', '']
else: return ['','', "", '']
# OPTIONALS
if progSpec.typeIsPointer(LVAL) and RightOwner=='literal':return ['','!', '', '']
return ['','', '','']
def codeSpecialParamList(self, tSpec, CPL):
return CPL
def codeXlatorAllocater(self, tSpec, genericArgs):
owner = progSpec.getOwner(tSpec)
cvrtType = self.codeGen.convertType(tSpec, 'alloc', genericArgs)
if(owner=='our'): S=cvrtType
elif(owner=='my'): S=cvrtType
elif(owner=='their'): S=cvrtType
elif(owner=='me'): cdErr("ERROR: Cannot allocate a 'me' variable.")
elif(owner=='const'): cdErr("ERROR: Cannot allocate a 'const' variable.")
else: cdErr("ERROR: Cannot allocate variable because owner is", owner+".")
return S
def getConstIntFieldStr(self, fieldName, fieldValue, intSize):
S= "static let "+fieldName+ ": Int = " + fieldValue+ ";\n"
return(S)
def langVarNamePrefix(self, crntBaseName, refedClass):
return(refedClass + self.ObjConnector)
def getEnumStr(self, fieldName, enumList):
S = ''
count=0
for enumName in enumList:
S += " " + self.getConstIntFieldStr(enumName, str(count), 32)
count=count+1
S += "\n"
return(S)
def codeIdentityCheck(self, S, S2, retType1, retType2, opIn):
if opIn == '===':
return S+' === '+S2
else:
if (opIn == '=='): opOut=' == '
elif (opIn == '!='): opOut=' != '
elif (opIn == '!=='): opOut=' !== '
else: print("ERROR: '==' or '!=' or '===' or '!==' expected."); exit(2)
[S_derefd, isDerefd] = self.derefPtr(S, retType1)
if S2!='nil':
S=S_derefd
[S2, isDerefd]=self.derefPtr(S2, retType1)
elif S[-1]=='!':
S=S[:-1] # Todo: Better detect this
S+= opOut+S2
return S
def codeComparisonStr(self, S, S2, retType1, retType2, op):
if (op == '<'): S+=' < '
elif (op == '>'): S+=' > '
elif (op == '<='): S+=' <= '
elif (op == '>='): S+=' >= '
else: print("ERROR: One of <, >, <= or >= expected in code generator."); exit(2)
S2 = self.adjustQuotesForChar(retType1, retType2, S2)
[S2, isDerefd]=self.derefPtr(S2, retType2)
S+=S2
return S
###################################################### EXPRESSION CODING
def codeNotOperator(self, S, S2,retTypeSpec):
if progSpec.varsTypeCategory(retTypeSpec) != 'bool':
if S2[-1]=='!': S2=S2[:-1] # Todo: Better detect this
S2='('+S2+' != nil)'
retTypeSpec='bool'
else: S+='!' + S2
return [S, retTypeSpec]
def codeFactor(self, item, returnType, expectedTypeSpec, LorRorP_Val, genericArgs):
#### ( value | ('(' + expr + ')') | ('!' + expr) | ('-' + expr) | varRef("varFunRef"))
#print(' factor: ', item)
S=''
retTypeSpec='noType'
item0 = item[0]
#print("ITEM0=", item0, ">>>>>", item)
if (isinstance(item0, str)):
if item0=='(':
[S2, retTypeSpec] = self.codeGen.codeExpr(item[1], returnType, expectedTypeSpec, LorRorP_Val, genericArgs)
S+='(' + S2 +')'
elif item0=='!':
[S2, retTypeSpec] = self.codeGen.codeExpr(item[1], returnType, expectedTypeSpec, LorRorP_Val, genericArgs)
[S, retTypeSpec] = self.codeNotOperator(S, S2,retTypeSpec)
elif item0=='-':
[S2, retTypeSpec] = self.codeGen.codeExpr(item[1], returnType, expectedTypeSpec, LorRorP_Val, genericArgs)
S+='-' + S2
elif item0=='[':
tmp="["
for expr in item[1:-1]:
[S2, retTypeSpec] = self.codeGen.codeExpr(expr, returnType, expectedTypeSpec, LorRorP_Val, genericArgs)
if len(tmp)>1: tmp+=", "
tmp+=S2
tmp+="]"
S+=tmp
elif item0=='{':
cdErr("TODO: finish Swift initialize new map")
else:
fTypeKW = progSpec.varTypeKeyWord(expectedTypeSpec)
if fTypeKW == "BigInt":
S += item0
retTypeSpec='BigInt'
elif fTypeKW == "BigFloat":
S += item0 + "_mpf"
retTypeSpec='BigFloat'
elif fTypeKW == "BigFrac":
S += item0 + "_mpq"
retTypeSpec='BigFrac'
elif(item0[0]=="'"):
retTypeSpec='string'
S+=self.codeGen.codeUserMesg(item0[1:-1])
elif (item0[0]=='"'):
if returnType != None and returnType["fieldType"]=="char":
retTypeSpec='char'
innerS=item0[1:-1]
if len(innerS)==1:
S+="'"+item0[1:-1] +"'"
else:
cdErr("Characters must have exactly 1 character.")
else:
S+='"'+item0[1:-1] +'"'
retTypeSpec='String'
else:
S+=item0;
if item0=='false' or item0=='true': retTypeSpec={'owner': 'literal', 'fieldType': 'bool'}
if retTypeSpec == 'noType' and progSpec.isStringNumeric(item0): retTypeSpec={'owner': 'literal', 'fieldType': 'numeric'}
if retTypeSpec == 'noType' and progSpec.typeIsInteger(fTypeKW): retTypeSpec=fTypeKW
else: # CODEDOG LITERALS
if isinstance(item0[0], str):
S+=item0[0]
if '"' in S or "'" in S: retTypeSpec = 'string'
if '.' in S: retTypeSpec = 'double'
if isinstance(S, int): retTypeSpec = 'int64'
else: retTypeSpec = 'int32'
else:
[codeStr, retTypeSpec, prntType, AltIDXFormat]=self.codeGen.codeItemRef(item0, 'RVAL', returnType, LorRorP_Val, genericArgs)
if(codeStr=="NULL"):
codeStr = self.nullValue
retTypeSpec = {'owner':"PTR"}
S+=codeStr # Code variable reference or function call
if retTypeSpec == 'noType': print("Warning: type Spec not found.", S)
return [S, retTypeSpec]
###################################################### ADJUST EXPRESSIONS
def adjustQuotesForChar(self, typeSpec1, typeSpec2, S):
return(S)
def adjustConditional(self, S, conditionType):
if conditionType!=None and not isinstance(conditionType, str):
if conditionType['owner']=='our' or conditionType['owner']=='their' or conditionType['owner']=='my' or progSpec.isStruct(conditionType['fieldType']):
if S[-1]=='!': S=S[:-1] # Todo: Better detect this
S+=" != nil"
elif conditionType['owner']=='me' and (conditionType['fieldType']=='flag' or progSpec.typeIsInteger(conditionType['fieldType'])):
if S[-1]=='!': S=S[:-1] # Todo: Better detect this
S+=" != 0"
conditionType='bool'
return [S, conditionType]
def codeSpecialReference(self, segSpec, genericArgs):
S=''
fType='void' # default to void
retOwner='me' # default to 'me'
funcName=segSpec[0]
if(len(segSpec)>2): # If there are arguments...
paramList=segSpec[2]
if(funcName=='print'):
S+='print('
count = 0
for P in paramList:
[S2, argTypeSpec]=self.codeGen.codeExpr(P[0], None, None, 'PARAM', genericArgs)
[S2, isDerefd]=self.derefPtr(S2, argTypeSpec)
if(count>0): S+=', '
S+=S2
count= count + 1
S+=',separator:"", terminator:"")'
elif(funcName=='AllocateOrClear'):
[varName, varTypeSpec]=self.codeGen.codeExpr(paramList[0][0], None, None, 'PARAM', genericArgs)
if(varTypeSpec==0): cdErr("Name is undefined: " + varName)
if(varName[-1]=='!'): varNameUnRefed=varName[:-1] # Remove a reference. It would be better to do this in self.codeGen.codeExpr but may take some work.
else: varNameUnRefed=varName
S+='if('+varNameUnRefed+' != nil){'+varName+'.clear();} else {'+varName+" = "+self.codeXlatorAllocater(varTypeSpec, genericArgs)+"();}"
elif(funcName=='Allocate'):
[varName, varTypeSpec]=self.codeGen.codeExpr(paramList[0][0], None, None, 'LVAL', genericArgs)
if(varTypeSpec==0): cdErr("Name is Undefined: " + varName)
S+=varName+" = "+self.codeXlatorAllocater(varTypeSpec, genericArgs)+'('
count=0 # TODO: As needed, make this call CodeParameterList() with modelParams of the constructor.
for P in paramList[1:]:
if(count>0): S+=', '
[S2, argType]=self.codeGen.codeExpr(P[0], None, None, 'PARAM', genericArgs)
S+=S2
count=count+1
S+=")"
elif(funcName=='callPeriodically'):
[objName, fType]=self.codeGen.codeExpr(paramList[1][0], None, None, 'PARAM', genericArgs)
[interval, intSpec] = self.codeGen.codeExpr(paramList[2][0], None, None, 'PARAM', genericArgs)
varTypeSpec= fType['fieldType'][0]
wrapperName="cb_wraps_"+varTypeSpec
S+='g_timeout_add('+interval+', '+wrapperName+', '+objName+')'
# Create a global function wrapping the class
decl='\nint '+wrapperName+'(void* data)'
defn='{'+varTypeSpec+'* self = ('+varTypeSpec+'*)data; self.run(); return true;}\n\n'
self.codeGen.appendGlobalFuncAcc(decl, defn)
elif(funcName=='break'):
if len(paramList)==0: S='break'
elif(funcName=='return'):
if len(paramList)==0: S+='return'
elif(funcName=='toStr'):
if len(paramList)==1:
[S2, argType]=self.codeGen.codeExpr(P[0][0], None, None, 'PARAM', genericArgs)
S2=self.derefPtr(S2, argType)
S+='to_string('+S2+')'
returnType='string'
else: # Not parameters, i.e., not a function
if(funcName=='self'):
S+='self'
return [S, retOwner, fType]
def checkIfSpecialAssignmentFormIsNeeded(self, action, indent, AltIDXFormat, RHS, rhsType, LHS, LHSParentType, LHS_FieldType):
# Check for string A[x] = B; If so, render A.insert(B,x)
S = ''
assignTag = action['assignTag']
if assignTag == '':
RHS += self.makePtrOpt(rhsType)
[containerType, __owner]=progSpec.getContainerType_Owner(AltIDXFormat[1])
if containerType == 'RBTreeMap' or containerType[:2]=="__" and 'Map' in containerType:
S = indent+AltIDXFormat[0]+'.insert('+AltIDXFormat[2]+', '+RHS+');\n'
#else: assignTag = assignTag[0]
return S
######################################################
def codeProtectBlock(self, mutex, criticalText, indent):
return(criticalText)
def codeMain(self, classes, tags):
cdlog(3, "\n Generating GLOBAL...")
if("GLOBAL" in classes[1]):
if(classes[0]["GLOBAL"]['stateType'] != 'struct'):
print("ERROR: GLOBAL must be a 'struct'.")
exit(2)
[structCode, funcCode, globalFuncs]=self.codeGen.codeStructFields("GLOBAL", tags, '')
if(funcCode==''): funcCode="// No main() function.\n"
if(structCode==''): structCode="// No Main Globals.\n"
funcCode = "\n\n"+funcCode+"\nmain();" # TODO: figure out why call to main isn't generated and un-hardcode this
return ["\n\n// Globals\n" + structCode + globalFuncs, funcCode]
return ["// No Main Globals.\n", "// No main() function defined.\n"]
def codeArgText(self, argFieldName, argType, argOwner, tSpec, makeConst, typeArgList):
isTypeArg = False
if typeArgList:
for typeArg in typeArgList:
if argType == typeArg: argType = "[" + argType + "]"
fieldTypeMod = self.makePtrOpt(tSpec)
return "_ " + argFieldName + ": " + argType + fieldTypeMod
def codeStructText(self, classes, attrList, parentClass, classInherits, classImplements, className, structCode, tags):
classAttrs=''
if len(attrList)>0:
for attr in attrList:
if attr[0]=='@': classAttrs += attr+' '
if parentClass != "":
parentClass = ': '+parentClass+' '
parentClass = progSpec.getUnwrappedClassFieldTypeKeyWord(className)
if classInherits!=None:
if parentClass != "": parentClass+= ', '
else: parentClass=': '
count = 0
for item in classInherits[0]:
if count>0:
parentClass+= ', '
parentClass+= progSpec.getUnwrappedClassFieldTypeKeyWord(classes, item)
count += 1
if classImplements!=None:
if parentClass != "": parentClass+= ', '
else: parentClass=': '
count = 0
for item in classImplements:
if count>0:
parentClass+= ', '
parentClass+= item
count += 1
typeArgList = progSpec.getTypeArgList(className)
if(typeArgList != None):
templateHeader = codeTemplateHeader(className, typeArgList)+" "
className= className+templateHeader
S= "\n"+classAttrs+"class "+className+parentClass+"{\n" + structCode + '};\n'
forwardDecls=""
return([S,forwardDecls])
def produceTypeDefs(self, typeDefMap):
typeDefCode="\n// Typedefs:\n"
for key in typeDefMap:
val=typeDefMap[key]
#sprint '['+key+']='+val+']'
if(val != '' and val != key):
typeDefCode += 'typedef '+key+' '+val+';\n'
return typeDefCode
def addSpecialCode(self, filename):
S='\n\n//////////// SWIFT specific code:\n'
S+="""
extension String {
func index(from: Int) -> Index {
return self.index(startIndex, offsetBy: from)
}
func substring(from: Int, to:Int) -> String {
return String(self[index(from: from)..<index(from: to)])
}
subscript(index value: Int) -> Element {
get {
let i = index(startIndex, offsetBy: value)
return self[i]
} set {
var array = Array(self)
array[value] = newValue
self = String(array)
}
}
}
extension Character {
var asciiValue: Int {
get {
let s = String(self).unicodeScalars
return Int(s[s.startIndex].value)
}
}
}
func joinCmdStrings(count: Int, argv: [Character]) -> String{
var acc: String=""
for i in 1...count{
if(i>1){acc+=" "}
acc += String(argv[i])
}
return(acc)
}
"""
decl ="string readFileAsString(string filename)"
defn="""{
string S="";
std::ifstream file(filename);
if(file.eof() || file.fail()) {return "";}
file.seekg(0, std::ios::end);
S.resize(file.tellg());
file.seekg(0, std::ios::beg);
file.read((char*)S.c_str(), S.count);
return S; //No errors
}"""
#self.codeGen.appendGlobalFuncAcc(decl, defn)
return S
def addGLOBALSpecialCode(self, classes, tags):
specialCode =''
GLOBAL_CODE="""
struct GLOBAL{
%s
}
""" % (specialCode)
#codeDogParser.AddToObjectFromText(classes[0], classes[1], GLOBAL_CODE)
def variableDefaultValueString(self, fType, isTypeArg, owner):
if (fType == "String"):
fieldValueText=' = ""'
elif (fType.startswith("[")):
fieldValueText=' = '+fType + '()'
elif (fType == "Bool"):
fieldValueText=' = false'
elif (self.isNumericType(fType)):
fieldValueText=' = 0'
elif (fType == "Character"):
fieldValueText=' = "\\0"'
elif(isTypeArg):
fieldValueText = ' = ['+fType +']()'
else:
if progSpec.ownerIsPointer(owner):fieldValueText = ''
else:fieldValueText = ' = ' + fType +'()'
return fieldValueText
def codeNewVarStr(self, LTSpec, varName, fieldDef, indent, genericArgs, localVarsAlloc):
varDeclareStr = ''
assignValue = ''
isAllocated = fieldDef['isAllocated']
owner = progSpec.getOwner(LTSpec)
useCtor = False
paramList = None
if fieldDef['paramList']: paramList = fieldDef['paramList']
if paramList and paramList[-1] == "^&useCtor//8":
del paramList[-1]
useCtor = True
cvrtType = self.codeGen.convertType(LTSpec, 'var', genericArgs)
localVarsAlloc.append([varName, LTSpec]) # Tracking local vars for scope
allocFieldType = self.codeGen.convertType(LTSpec, 'alloc', genericArgs)
if(fieldDef['value']):
[RHS, RTSpec]=self.codeGen.codeExpr(fieldDef['value'][0], None, None, 'RVAL', genericArgs)
[leftMod, rightMod]=self.chooseVirtualRValOwner(LTSpec, RTSpec)
RHS = leftMod+RHS+rightMod
RHS = self.checkForTypeCastNeed(LTSpec, RTSpec, RHS)
assignValue = " = " + RHS
elif paramList!=None: # call constructor # curly bracket param list
# Code the constructor's arguments
modelParams = self.codeGen.chooseCtorModelParams(LTSpec, paramList, genericArgs)
[CPL, paramTypeList] = self.codeGen.codeParameterList(varName, paramList, modelParams, genericArgs)
if len(paramTypeList)==1:
if not isinstance(paramTypeList[0], dict):
print("\nPROBLEM: The return type of the parameter '", CPL, "' of "+varName+"(...) cannot be found and is needed. Try to define it.\n", paramTypeList)
exit(1)
RTSpec = paramTypeList[0]
rhsType = progSpec.getFieldType(RTSpec)
# TODO: Remove the 'True' and make this check object heirarchies or similar solution
if True or not isinstance(rhsType, str) and cvrtType==rhsType[0]:
assignValue = " = " + CPL # Act like a copy constructor
if(assignValue==''): assignValue = ' = ' + allocFieldType + CPL
else: # If no value was given:
assignValue = self.variableDefaultValueString(allocFieldType, False, owner)
if assignValue == "":
assignValue = " = " + allocFieldType + '()'
fieldTypeMod = self.makePtrOpt(LTSpec)
varDeclareStr= "var " + varName + ": "+ cvrtType + fieldTypeMod + assignValue
return(varDeclareStr)
def codeIncrement(self, varName):
return varName + " += 1"
def codeDecrement(self, varName):
return varName + " -= 1"
def isNumericType(self, convertedType):
if(convertedType == "UInt32" or convertedType == "UInt64" or convertedType == "Float" or convertedType == "Int" or convertedType == "Int32" or convertedType == "Int64" or convertedType == "Double"):
return True
return False
def codeVarFieldRHS_Str(self, fieldName, cvrtType, tSpec, paramList, isAllocated, typeArgList, genericArgs):
fieldValueText=""
fieldOwner=progSpec.getOwner(tSpec)
isTypeArg = False
if typeArgList:
for typeArg in typeArgList:
if cvrtType == typeArg: isTypeArg = True
if paramList!=None:
if paramList[-1] == "^&useCtor//8":
del paramList[-1]
[CPL, paramTypeList] = self.codeGen.codeParameterList(fieldName, paramList, None, genericArgs)
fieldValueText=" = " + cvrtType + CPL
else:
fieldValueText = self.variableDefaultValueString(cvrtType, isTypeArg, fieldOwner)
if fieldValueText and cvrtType != 'String':
fieldValueText += self.makePtrOpt(tSpec) # Default String value can't be optional
return fieldValueText
def codeConstField_Str(self, convertedType, fieldName, fieldValueText, className, indent):
decl = ''
if className=='GLOBAL': defn = indent + "let " + fieldName + ':'+ convertedType + fieldValueText +';\n';
else: defn = indent + "let " + fieldName + ':'+ convertedType + fieldValueText +';\n';
return [defn, decl]
def codeVarField_Str(self, convertedType, tSpec, fieldName, fieldValueText, className, tags, typeArgList, indent):
# TODO: make test case
fieldOwner=progSpec.getOwner(tSpec)
if fieldOwner=='we':
defn = indent + "public static var "+ indent + fieldName + ": " + convertedType + fieldValueText + '\n'
decl = ''
else:
isTypeArg = False
if typeArgList:
for typeArg in typeArgList:
if convertedType == typeArg: isTypeArg = True
if isTypeArg: defn = indent + "var "+ fieldName + fieldValueText + '\n'
else:
convertedType += self.makePtrOpt(tSpec)
defn = indent + "var "+ fieldName + ": " + convertedType + fieldValueText + '\n'
decl = ''
return [defn, decl]
###################################################### CONSTRUCTORS
def codeConstructor(self, className, ctorArgs, callSuper, ctorInit, funcBody):
if callSuper != '':
callSuper = ':' + callSuper
if ctorInit != '':
callSuper = callSuper + ', '
elif ctorInit != '':
ctorInit = ': ' + ctorInit
S = ' init(' + ctorArgs + ') {\n' + funcBody + ' };\n'
return (S)
def codeConstructors(self, className, ctorArgs, ctorOvrRide, ctorInit, copyCtorArgs, funcBody, callSuper):
#TODO: Swift should only have constructors if they are called somewhere.
prefix = ''
if callSuper != "": prefix = 'override '
if ctorArgs != "":
S = ' '+ctorOvrRide+'init(' + ctorArgs+'){\n'+callSuper+ctorInit+funcBody+' }\n'
S += ' '+prefix+'init(){\n'+callSuper+funcBody+' }\n'
return S
def codeConstructorInit(self, fieldName, count, defaultVal):
return " self." + fieldName +" = arg_"+fieldName+";\n"
def codeConstructorArgText(self, argFieldName, count, argType, defaultVal):
if defaultVal == "nil": defaultVal = ""
if defaultVal: argType = argType + '=' + defaultVal
return "_ arg_" + argFieldName + ': ' +argType
def codeCopyConstructor(self, fieldName, isTemplateVar):
return ""
def codeConstructorCall(self, className):
return ' INIT();\n'
def codeSuperConstructorCall(self, parentClassName):
return ' super.init();\n'
def specialFunction(self, fieldName, classDef):
if fieldName == "__plus": newFieldName = fieldName
elif fieldName == "__minus": newFieldName = fieldName
elif fieldName == "__times": newFieldName = fieldName
elif fieldName == "__divide": newFieldName = fieldName
elif fieldName == "__negate": newFieldName = fieldName
elif fieldName == "__plusEqual": newFieldName = fieldName
elif fieldName == "__lessThan": newFieldName = fieldName
elif fieldName == "__lessOrEq": newFieldName = fieldName
elif fieldName == "__greaterThan": newFieldName = fieldName
elif fieldName == "__greaterOrEq": newFieldName = fieldName
elif fieldName == "__isEqual":
newFieldName = fieldName
if 'tags' in classDef:
classImplements = progSpec.searchATagStore(classDef['tags'], 'implements')
if classImplements!=None:
if 'Equatable' in classImplements[0]:
newFieldName = "=="
elif fieldName == "__notEqual": newFieldName = fieldName
elif fieldName == "__inc": newFieldName = fieldName
elif fieldName == "__opAssign": newFieldName = fieldName
elif fieldName == "__derefPtr": newFieldName = fieldName
elif fieldName == "__index": newFieldName = fieldName
elif fieldName == "__opPtr": newFieldName = fieldName
else: newFieldName = fieldName
return newFieldName
def codeFuncHeaderStr(self, className, fieldName, field, cvrtType, argListText, localArgsAlloc, inheritMode, typeArgList, isNested, overRideOper, isStatic, indent):
structCode='\n'; funcDefCode=''; globalFuncs='';
tSpec = progSpec.getTypeSpec(field)
fTypeKW = progSpec.fieldTypeKeyword(tSpec)
if fTypeKW =='none': isCtor = True
else: isCtor = False
if typeArgList:
for typeArg in typeArgList:
if cvrtType == typeArg: cvrtType = '['+cvrtType+']'
if cvrtType!='': cvrtType = '-> '+cvrtType
if(className=='AppDelegate'):
if fieldName=='application':
structCode += ' func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool '
localArgsAlloc.append(['application', {'owner':'me', 'fieldType':'UIApplication', 'arraySpec':None,'argList':None}])
localArgsAlloc.append(['launchOptions', {'owner':'their', 'fieldType':'int', 'arraySpec':None,'argList':None}]) # TODO: Wrong. launchOptions should be an array.
else:
structCode +="func " + fieldName +"("+argListText+") " + cvrtType
else:
if fieldName=="init":
fieldName = "__INIT_"+className
structCode += indent + "func " + fieldName +"("+argListText+")" + cvrtType
else:
if isCtor:
structCode += indent + "init " +"("+argListText+") " + cvrtType
else:
fieldTypeMod = self.makePtrOpt(tSpec)
funcAttrs = ''
staticKW = ''
if isStatic: staticKW = 'static '
if inheritMode=='override': funcAttrs='override '
structCode += indent + funcAttrs + staticKW + "func " + fieldName +"("+argListText+") " + cvrtType + fieldTypeMod
return [structCode, funcDefCode, globalFuncs]
def getVirtualFuncText(self, field):
field['value'] = '{fatalError("Must Override")}'
return field['value']+'\n'
def codeTemplateHeader(self, className, typeArgList):
templateHeader = "<"
count = 0
for typeArg in typeArgList:
if(count>0):templateHeader+=", "
templateHeader+=typeArg
count+=1
templateHeader+=">"
return(templateHeader)
def extraCodeForTopOfFuntion(self, argList):
if len(argList)==0:
topCode=''
else:
topCode=""
for arg in argList:
argTypeSpec = progSpec.getTypeSpec(arg)
argFieldName = arg['fieldName']
topCode += ' var '+argFieldName+' = '+argFieldName+'\n'
return topCode
def codeSetBits(self, LHS_Left, LHS_FieldType, prefix, bitMask, RHS, rhsType):
if (LHS_FieldType =='flag' ):
item = LHS_Left+"flags"
mask = prefix+bitMask
if (RHS != 'true' and RHS !='false'):
RHS += ' != 0'
val = '('+ RHS +') ? '+mask+':0'
elif (LHS_FieldType =='mode' ):
item = LHS_Left+"flags"
mask = prefix+bitMask+"Mask"
val = RHS+"<<"+prefix+bitMask+"Offset"
return 'do{'+item+" &= ~UInt64("+mask+"); "+item+" |= UInt64("+val+");}\n"
def codeSwitchBreak(self, caseAction, indent):
return indent+" break;\n"
def applyTypecast(self, typeInCodeDog, itemToAlterType):
platformType = self.adjustBaseTypes(typeInCodeDog, False)
return platformType+'('+itemToAlterType+')';
#######################################################
def includeDirective(self, libHdr):