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ctranslator.bmx
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' Copyright (c) 2013-2023 Bruce A Henderson
'
' Based on the public domain Monkey "trans" by Mark Sibly
'
' This software is provided 'as-is', without any express or implied
' warranty. In no event will the authors be held liable for any damages
' arising from the use of this software.
'
' Permission is granted to anyone to use this software for any purpose,
' including commercial applications, and to alter it and redistribute it
' freely, subject to the following restrictions:
'
' 1. The origin of this software must not be misrepresented; you must not
' claim that you wrote the original software. If you use this software
' in a product, an acknowledgment in the product documentation would be
' appreciated but is not required.
'
' 2. Altered source versions must be plainly marked as such, and must not be
' misrepresented as being the original software.
'
' 3. This notice may not be removed or altered from any source
' distribution.
'
SuperStrict
Import "parser.bmx"
Type TCTranslator Extends TTranslator
'Field stringConstCount:Int
Field prefix:String
Field reserved_methods:String = ",New,Delete,ToString,Compare,SendMessage,_reserved1_,_reserved2_,_reserved3_,".ToLower()
Method New()
_trans = Self
End Method
Method TransSPointer$( ty:TType, withVar:Int = False )
Local p:String
If ty
If withVar And (ty._flags & TType.T_VAR) Then
p:+ "*"
End If
If ty._flags & TType.T_PTR Then
p:+ "*"
Else If ty._flags & TType.T_PTRPTR Then
p:+ "**"
Else If ty._flags & TType.T_PTRPTRPTR Then
p:+ "***"
End If
End If
Return p
End Method
Method TransArrayType$( ty:TType)
Local p:String = TransSPointer(ty)
If TBoolType( ty ) Return "~q" + p + "i~q"
If TByteType( ty ) Return "~q" + p + "b~q"
If TShortType( ty ) Return "~q" + p + "s~q"
If TIntType( ty ) Return "~q" + p + "i~q"
If TUIntType( ty ) Return "~q" + p + "u~q"
If TFloatType( ty ) Return "~q" + p + "f~q"
If TDoubleType( ty ) Return "~q" + p + "d~q"
If TLongType( ty ) Return "~q" + p + "l~q"
If TULongType( ty ) Return "~q" + p + "y~q"
If TLongIntType( ty ) Return "~q" + p + "v~q"
If TULongIntType( ty ) Return "~q" + p + "e~q"
If TSizeTType( ty ) Return "~q" + p + "z~q"
If TWParamType( ty ) Return "~q" + p + "w~q"
If TLParamType( ty ) Return "~q" + p + "x~q"
If TStringType( ty ) Return "~q$~q"
If TInt128Type( ty ) Return "~q" + p + "j~q"
If TFloat128Type( ty ) Return "~q" + p + "k~q"
If TDouble128Type( ty ) Return "~q" + p + "m~q"
If TFloat64Type( ty ) Return "~q" + p + "h~q"
If TArrayType( ty ) Then
Local s:String = "["
For Local i:Int = 0 Until TArrayType( ty ).dims - 1
s:+ ","
Next
s:+ "]"
s:+ TransArrayType(TArrayType( ty ).elemType)
Return Enquote(s.Replace("~q", ""))
End If
If TObjectType( ty ) Then
If TObjectType( ty ).classdecl.IsStruct()
Return "~q" + p + "@" + TObjectType(ty).classDecl.ident + "~q"
Else
If Not TObjectType( ty ).classdecl.IsExtern()
Return "~q:" + TObjectType(ty).classDecl.ident + "~q"
Else
If TObjectType( ty ).classdecl.IsInterface() Then
Return "~q" + p + "*#" + TObjectType(ty).classDecl.ident + "~q"
' ElseIf TObjectType( ty ).classdecl.IsStruct()
' Return "~q" + p + "@" + TObjectType(ty).classDecl.ident + "~q"
Else
Return "~q" + p + "#" + TObjectType(ty).classDecl.ident + "~q"
End If
End If
End If
End If
If TFunctionPtrType( ty ) Return "~q(~q"
If TEnumType( ty ) Return "~q/" + TEnumType(ty).decl.ident + "~q"
End Method
Method TransDefDataType$( ty:TType)
If TByteType( ty ) Return "~qb~q"
If TShortType( ty ) Return "~qs~q"
If TIntType( ty ) Return "~qi~q"
If TUIntType( ty ) Return "~qu~q"
If TFloatType( ty ) Return "~qf~q"
If TDoubleType( ty ) Return "~qd~q"
If TLongType( ty ) Return "~ql~q"
If TULongType( ty ) Return "~qy~q"
If TSizeTType( ty ) Return "~qz~q"
If TLongIntType( ty ) Return "~qv~q"
If TULongIntType( ty ) Return "~qe~q"
If TStringType( ty ) Return "~q$~q"
If TWParamType( ty ) Return "~qw~q"
If TLParamType( ty ) Return "~qx~q"
End Method
Method TransDefDataConversion$(ty:TType)
If TByteType( ty ) Return "bbConvertToInt"
If TShortType( ty ) Return "bbConvertToInt"
If TIntType( ty ) Return "bbConvertToInt"
If TUIntType( ty ) Return "bbConvertToUInt"
If TFloatType( ty ) Return "bbConvertToFloat"
If TDoubleType( ty ) Return "bbConvertToDouble"
If TLongType( ty ) Return "bbConvertToLong"
If TULongType( ty ) Return "bbConvertToULong"
If TSizeTType( ty ) Return "bbConvertToSizet"
If TLongIntType( ty ) Return "bbConvertToLongInt"
If TULongIntType( ty ) Return "bbConvertToULongInt"
If TStringType( ty ) Return "bbConvertToString"
End Method
Method TransDefDataUnionType$(ty:TType)
If TByteType( ty ) Return "b"
If TShortType( ty ) Return "s"
If TIntType( ty ) Return "i"
If TUIntType( ty ) Return "u"
If TFloatType( ty ) Return "f"
If TDoubleType( ty ) Return "d"
If TLongType( ty ) Return "l"
If TULongType( ty ) Return "y"
If TSizeTType( ty ) Return "z"
If TLongIntType( ty ) Return "v"
If TULongIntType( ty ) Return "e"
If TWParamType( ty ) Return "w"
If TLParamType( ty ) Return "x"
If TStringType( ty ) Return "t"
End Method
Method TransDebugScopeType$(ty:TType)
Local p:String = TransSPointer(ty)
If TByteType( ty ) Return p + "b"
If TShortType( ty ) Return p + "s"
If TIntType( ty ) Return p + "i"
If TUIntType( ty ) Return p + "u"
If TFloatType( ty ) Return p + "f"
If TDoubleType( ty ) Return p + "d"
If TLongType( ty ) Return p + "l"
If TULongType( ty ) Return p + "y"
If TSizeTType( ty ) Return p + "t"
If TLongIntType( ty ) Return p + "v"
If TULongIntType( ty ) Return p + "e"
If TWParamType( ty ) Return p + "W"
If TLParamType( ty ) Return p + "X"
If TInt128Type( ty ) Return p + "j"
If TFloat128Type( ty ) Return p + "k"
If TDouble128Type( ty ) Return p + "m"
If TFloat64Type( ty ) Return p + "h"
If TStringType( ty ) Return "$"
If TArrayType( ty ) Then
Local s:String = "["
If TArrayType( ty ).isStatic Then
s :+ TArrayType( ty ).length
Else
For Local i:Int = 0 Until TArrayType( ty ).dims - 1
s:+ ","
Next
End If
s:+ "]"
Return s + TransDebugScopeType(TArrayType( ty ).elemType)
End If
If TObjectType( ty ) Then
If TObjectType( ty ).classdecl.IsStruct() Then
Return p + "@" + TObjectType(ty).classDecl.ident
Else If Not TObjectType( ty ).classdecl.IsExtern()
Return ":" + TObjectType( ty ).classDecl.ident
Else
If TObjectType( ty ).classdecl.IsInterface() Then
Return p + "*#" + TObjectType(ty).classDecl.ident
Else
Return p + "#" + TObjectType(ty).classDecl.ident
End If
End If
End If
If TFunctionPtrType( ty ) Then
Local func:TFuncDecl = TFunctionPtrType( ty ).func
Local s:String = "("
For Local i:Int = 0 Until func.argDecls.length
If i Then
s :+ ","
End If
s :+ TransDebugScopeType(func.argDecls[i].ty)
Next
Return s + ")" + TransDebugScopeType(func.retType)
End If
If TEnumType( ty ) Then
Return "/" + TEnumType( ty ).decl.ident
End If
End Method
Method TransType$( ty:TType, ident:String, fpReturnTypeFunctionArgs:String = Null, fpReturnTypeClassFunc:Int = False)
Local p:String = TransSPointer(ty, True)
If TVoidType( ty ) Or Not ty Then
Return "void"
End If
If TBoolType( ty ) Return "BBINT" + p
If TByteType( ty ) Return "BBBYTE" + p
If TShortType( ty ) Return "BBSHORT" + p
If TIntType( ty ) Return "BBINT" + p
If TUIntType( ty ) Return "BBUINT" + p
If TFloatType( ty ) Return "BBFLOAT" + p
If TDoubleType( ty ) Return "BBDOUBLE" + p
If TLongType( ty ) Return "BBLONG" + p
If TULongType( ty ) Return "BBULONG" + p
If TSizeTType( ty ) Return "BBSIZET" + p
If TLongIntType( ty ) Return "BBLONGINT" + p
If TULongIntType( ty ) Return "BBULONGINT" + p
If TWParamType( ty ) Return "WPARAM" + p
If TLParamType( ty ) Return "LPARAM" + p
If TInt128Type( ty ) Return "BBINT128" + p
If TFloat128Type( ty ) Return "BBFLOAT128" + p
If TDouble128Type( ty ) Return "BBDOUBLE128" + p
If TFloat64Type( ty ) Return "BBFLOAT64" + p
If TStringType( ty ) Then
If ty._flags & TType.T_CHAR_PTR Then
Return "BBBYTE *"
Else If ty._flags & TType.T_SHORT_PTR Then
Return "BBSHORT *"
End If
Return "BBSTRING" + p
End If
If TArrayType( ty ) Then
If TArrayType( ty ).isStatic Then
Return TransType(TArrayType( ty ).elemType, ident)
Else
Return "BBARRAY" + p
End If
End If
If TObjectType( ty ) Then
Return TransObject(TObjectType(ty).classdecl) + p
End If
If TFunctionPtrType( ty ) Then
TFunctionPtrType(ty).func.Semant
Local api:String
If TFunctionPtrType(ty).func.attrs & DECL_API_STDCALL Then
api = " __stdcall "
End If
Local args:String
For Local arg:TArgDecl = EachIn TFunctionPtrType(ty).func.argDecls
arg.Semant()
If args Then
args :+ ","
End If
args :+ TransType(arg.ty, "")
Next
Local ret:String = ""
If fpReturnTypeFunctionArgs Then
ret = Bra(fpReturnTypeFunctionArgs)
End If
If fpReturnTypeClassFunc Then
' typedef for function pointer return type
Return ident + "x" + Bra(api + p +"* " + ident) + Bra(args)
Else
' if a function F returns another function (let's call it G),
' then C syntax requires the declaration of F to be nested into that of the type of G
' e.g. "Function F:RetG(ArgG)(ArgF)" in BlitzMax becomes "RetG(* F(ArgF) )(ArgG)" in C
' solution: use "* F(ArgF)" as an ident to generate a declaration for G
' the result will be the declaration for F
Local callable:String = Bra(api + p +"* " + ident + ret)
If TFunctionPtrType(TFunctionPtrType(ty).func.retType) Then
If Not args Then args = " " ' make sure the parentheses aren't ommited even if the parameter list is empty
Return TransType(TFunctionPtrType(ty).func.retType, callable, args)
Else
Local retTypeStr:String = TransType(TFunctionPtrType(ty).func.retType, "")
Return retTypeStr + callable + Bra(args)
End If
End If
End If
If TExternObjectType( ty ) Return "struct " + TExternObjectType( ty ).classDecl.munged + p
If TEnumType( ty ) Return TransType( TEnumType( ty ).decl.ty, ident ) + p
InternalErr "TCTranslator.TransType"
End Method
Method TransIfcType$( ty:TType, isSuperStrict:Int = False )
Local p:String = TransSPointer(ty)
If ty And (ty._flags & TType.T_VAR) Then
p :+ " Var"
End If
If Not ty Then
If opt_issuperstrict Or isSuperStrict Then
Return p
Else
Return "%" + p
End If
End If
If TVoidType( ty ) Then
Return p
End If
If TByteType( ty ) Return "@" + p
If TShortType( ty ) Return "@@" + p
If TIntType( ty ) Return "%" + p
If TUIntType( ty ) Return "|" + p
If TFloatType( ty ) Return "#" + p
If TDoubleType( ty ) Return "!" + p
If TLongType( ty ) Return "%%" + p
If TULongType( ty ) Return "||" + p
If TSizeTType( ty ) Return "%z" + p
If TLongIntType( ty ) Return "%v" + p
If TULongIntType( ty ) Return "%e" + p
If TWParamType( ty ) Return "%w" + p
If TLParamType( ty ) Return "%x" + p
If TInt128Type( ty ) Return "%j" + p
If TFloat128Type( ty ) Return "!k" + p
If TDouble128Type( ty ) Return "!m" + p
If TFloat64Type( ty ) Return "!h" + p
If TStringType( ty ) Then
If ty._flags & TType.T_CHAR_PTR Then
Return "$z"
Else If ty._flags & TType.T_SHORT_PTR Then
Return "$w"
End If
Return "$" + p
End If
If TArrayType( ty ) Then
Local s:String = TransIfcType(TArrayType( ty ).elemType) + "&["
If TArrayType( ty ).isStatic Then
s :+ TArrayType( ty ).length
Else
For Local i:Int = 0 Until TArrayType( ty ).dims - 1
s:+ ","
Next
End If
Return s + "]" + p
End If
If TObjectType( ty ) Then
Local t:String = ":"
If TObjectType(ty).classDecl.IsExtern() Then
If TObjectType(ty).classDecl.IsInterface() Then
t = "??"
ElseIf TObjectType(ty).classDecl.IsStruct() Then
t = "~~"
Else
t = "?"
End If
End If
Local cdecl:TClassDecl = TObjectType(ty).classDecl
' find first type in hierarchy that isn't private
While cdecl.IsPrivate() And cdecl.superClass <> Null
cdecl = cdecl.superClass
Wend
Local args:String
If cdecl.instArgs And cdecl.instArgs.length Then
args = "<"
For Local i:Int = 0 Until cdecl.instArgs.length
If i Then
args :+ ","
End If
args :+ cdecl.instArgs[i].ToString()
Next
args :+ ">"
End If
Return t + cdecl.ident + args + p
End If
If TFunctionPtrType( ty ) Then
Local t:String = TransIfcType(TFunctionPtrType(ty).func.retType, TFunctionPtrType(ty).func.ModuleScope().IsSuperStrict()) + TransIfcArgs(TFunctionPtrType(ty).func)
If TFunctionPtrType( ty ).func.attrs & DECL_API_STDCALL Then
t :+ "W"
End If
Return t
End If
If TExternObjectType( ty ) Return ":" + TExternObjectType(ty).classDecl.ident + p
If TEnumType( ty ) Then
Return "/" + TEnumType( ty ).decl.ident + p
End If
InternalErr "TCTranslator.TransIfcType"
End Method
Method TransRefType$( ty:TType, ident:String )
Return TransType( ty, ident )
End Method
Method TransValue$( ty:TType,value$, isStructInit:Int = False )
If value
If IsPointerType(ty, 0, TType.T_POINTER) Return value
If TBoolType( ty ) Return "1"
If TShortType( ty ) Return value
If TIntType( ty ) Return value
If TUIntType( ty ) Return value+"U"
If TLongType( ty ) Return value+"LL"
If TULongType( ty ) Return value+"ULL"
If TSizeTType( ty ) Return value
If TLongIntType( ty ) Return value
If TULongIntType( ty ) Return value
If TWParamType( ty ) Return value
If TLParamType( ty ) Return value
If TInt128Type( ty ) Return value
If TFloatType( ty ) Then
If value = "nan" Or value.StartsWith("1.#IND0000") Then
Return "bbPOSNANf"
Else If value="-nan" Or value.StartsWith("-1.#IND0000") Then
Return "bbNEGNANf"
Else If value = "inf" Or value.StartsWith("1.#INF0000") Then
Return "bbPOSINFf"
Else If value = "-inf" Or value.StartsWith("-1.#INF0000") Then
Return "bbNEGINFf"
Else
If value.ToLower().Find("e")>=0 Then
Return value
End If
If value.Find(".") < 0 Then
value :+ ".0"
End If
Return value+"f"
End If
End If
If TDoubleType( ty ) Or TFloat128Type(ty) Or TDouble128Type(ty) Or TFloat64Type(ty) Then
If value = "nan" Or value.StartsWith("1.#IND0000") Then
Return "bbPOSNANd"
Else If value="-nan" Or value.StartsWith("-1.#IND0000") Then
Return "bbNEGNANd"
Else If value = "inf" Or value.StartsWith("1.#INF0000") Then
Return "bbPOSINFd"
Else If value = "-inf" Or value.StartsWith("-1.#INF0000") Then
Return "bbNEGINFd"
Else
If value.ToLower().Find("e") >=0 Then
Return value
End If
If value.Find(".") < 0 Then
value :+ ".0"
End If
Return value
End If
End If
If TStringType( ty ) Return TransStringConst(value )
If TByteType( ty ) Return value
If TEnumType( ty ) Return value
Else
If TBoolType( ty ) Return "0"
If TIntrinsicType( ty) Then
If IsPointerType(ty, 0, TType.T_POINTER) Then
Return "0"
Else
Return "{}"
End If
End If
If TNumericType( ty ) Return "0" ' numeric and pointers
If TStringType( ty ) Then
If isStructInit Then
Return "&bbEmptyString"
Else
Return Bra("&bbEmptyString")
End If
End If
If TArrayType( ty ) Then
If isStructInit Then
If TArrayType( ty ).isStatic Then
Local t:String = "{"
Local count:Int = 0
For Local i:Int = 0 Until Int(TArrayType( ty ).length)
count :+ 1
If i Then
t :+ ","
End If
If count = 100 Then
t :+ "~n"
count = 0
End If
t :+ TransValue(TArrayType( ty ).elemType, "", True)
Next
Return t + "}"
Else
Return "&bbEmptyArray"
End If
Else
Return Bra("&bbEmptyArray")
End If
End If
If TObjectType( ty ) Then
If TObjectType( ty ).classDecl.IsExtern() Or TObjectType( ty ).classDecl.IsStruct() Then
If TObjectType( ty ).classDecl.IsInterface() Or IsPointerType(ty,0,TType.T_POINTER) Or (Not TObjectType( ty ).classDecl.IsStruct()) Then
Return "0"
Else
If TObjectType( ty ).classDecl.IsStruct() Then
Local t:String
If Not isStructInit Then
t = "((" + TransType(ty, "") + "){"
Else
t = "{"
End If
Local fields:Int
For Local f:TFieldDecl = EachIn TObjectType( ty ).classDecl.Decls()
If fields Then
t :+ ","
End If
fields = True
t :+ TransValue(f.ty, "", True)
Next
If Not isStructInit Then
t :+ "})"
Else
t :+ "}"
End If
Return t
Else
Return "{}"
End If
End If
Else
If isStructInit Then
Return "&bbNullObject"
Else
Return Bra(Bra(TransType(ty, "*")) + "&bbNullObject")
End If
End If
End If
If TFunctionPtrType( ty) Return Bra(TransType(ty, "")) + "(&brl_blitz_NullFunctionError)"
If TEnumType( ty ) Then
If TEnumType( ty ).decl.isFlags Then
Return "0"
Else
Return TEnumType( ty ).decl.values[0].Value()
End If
End If
EndIf
InternalErr "TCTranslator.TransValue"
End Method
Method TransArgs$( args:TExpr[],decl:TFuncDecl, objParam:String = Null, objectNew:Int = False )
'If decl.ident="AddS" DebugStop
Local t$
If objParam And (decl.IsMethod() Or decl.isCtor()) And ((Not decl.IsExtern()) Or (decl.IsExtern() And TClassDecl(decl.scope) And Not TClassDecl(decl.scope).IsStruct())) Then
' object cast to match param type
If objectNew Then
t :+ Bra("BBClass *")
Else
If TClassDecl(decl.scope) Then
t :+ Bra(TransObject(TClassDecl(decl.scope).GetLatestFuncDecl(decl).scope, TClassDecl(decl.scope).IsStruct()))
End If
End If
t:+ objParam
End If
For Local i:Int=0 Until decl.argDecls.Length
Local argDecl:TArgDecl = decl.argDecls[i]
Local ty:TType = TArgDecl(argDecl.actual).ty
If t t:+","
If i < args.length
Local arg:TExpr = args[i]
' object cast to match param type
If TObjectType(ty) And Not TObjectType(ty).classDecl.IsStruct() And Not argDecl.castTo Then
Local fdecl:TFuncDecl = decl
If TClassDecl(decl.scope) Then
fdecl = TClassDecl(decl.scope).GetOriginalFuncDecl(decl)
End If
t :+ Bra(TransObject(TObjectType(TArgDecl(fdecl.argDecls[i].actual).ty).classDecl))
End If
Local varRef:String
If TNullExpr(arg) Then
t :+ TransValue(ty, Null)
Continue
Else If TIndexExpr(arg) And (ty._flags & TType.T_VAR)Then
varRef = "&"
Else If TStringType(ty) And (ty._flags & TType.T_VAR) Then
If TCastExpr(arg) And TStringType(TCastExpr(arg).expr.exprType) Then
varRef = "&"
End If
Else If TArrayType(ty) And (ty._flags & TType.T_VAR) Then
If (TVarExpr(arg) And TArrayType(TVarExpr(arg).exprType) Or (TMemberVarExpr(arg) And TArrayType(TMemberVarExpr(arg).exprType))) And Not (arg.exprType._flags & TType.T_VAR) Then
varRef = "&"
End If
Else If TObjectType(ty) And (ty._flags & TType.T_VAR) Then
If (TVarExpr(arg) Or TMemberVarExpr(arg)) And TObjectType(arg.exprType) And Not (arg.exprType._flags & TType.T_VAR) Then
varRef = "&"
End If
Else If TFunctionPtrType(ty) Or IsPointerType(ty, TType.T_BYTE) Then
If TFunctionPtrType(ty) And (ty._flags & TType.T_VAR) Then
varRef = "&"
End If
If TInvokeExpr(arg) And Not TInvokeExpr(arg).decl.IsMethod() Then
t :+ varRef
If IsPointerType(ty, TType.T_BYTE) Then
t:+ TInvokeExpr(arg).Trans()
Else
' need to test scopes to see if we need to use the current instance's function or not
' use the "actual", not the copy we made for the function pointer.
Local fdecl:TFuncDecl = TFuncDecl(TInvokeExpr(arg).decl.actual)
If Not fdecl.munged Then
MungDecl fdecl
TInvokeExpr(arg).decl.munged = fdecl.munged
End If
If TClassDecl(fdecl.scope) Then
' current scope is related to function scope?
If _env.ClassScope() And _env.FuncScope() And _env.FuncScope().IsMethod() Then
If _env.ClassScope().ExtendsClass(TClassDecl(fdecl.scope)) Then
Local scope:TScopeDecl = _env.scope
Local obj:String = Bra("struct " + scope.munged + "_obj*")
Local class:String = "o->clas"
t:+ class + "->f_" + fdecl.ident + MangleMethod(fdecl)
Else
t:+ fdecl.munged
End If
Else
t:+ fdecl.munged
End If
Else
t:+ fdecl.munged
End If
End If
Continue
End If
' some cases where we are passing a function pointer via a void* parameter.
If TCastExpr(arg) And TInvokeExpr(TCastExpr(arg).expr) And Not TInvokeExpr(TCastExpr(arg).expr).invokedWithBraces Then
t:+ varRef
If Not TInvokeExpr(TCastExpr(arg).expr).decl.munged Then
t:+ TInvokeExpr(TCastExpr(arg).expr).decl.actual.munged
Else
t:+ TInvokeExpr(TCastExpr(arg).expr).decl.munged
End If
Continue
End If
If TCastExpr(arg) And TVarExpr(TCastExpr(arg).expr) Then
t:+ varRef
t:+ TransCast(TFunctionPtrType(ty)) + Bra(arg.Trans())
Continue
End If
' Object -> Byte Ptr
If IsPointerType(ty, TType.T_BYTE) And TObjectType(arg.exprType) Then
t:+ varRef + Bra("bbObjectToFieldOffset" + Bra("(BBObject*)" + arg.Trans()))
Continue
End If
Else If IsNumericType(ty) Then
If TObjectType(arg.exprType) 'And TObjectType(args[i].exprType).classDecl = TClassDecl.nullObjectClass Then
err "NULL"
t:+ "0"
Continue
End If
Else If TEnumType(ty) And (ty._flags & TType.T_VAR) Then
If (TVarExpr(arg) Or TMemberVarExpr(arg)) And TEnumType(arg.exprType) And Not (arg.exprType._flags & TType.T_VAR) Then
varRef = "&"
End If
End If
If argDecl.castTo Then
If argDecl.castTo.Find("*") >= 0 Then
t:+ Bra(argDecl.castTo) + varRef + arg.Trans()
Else
t:+ varRef + Bra(argDecl.castTo) + arg.Trans()
End If
Else
t :+ varRef
Local tc:String = TransTemplateCast( ty,arg.exprType,arg.Trans() )
' *sigh*
' if var is going to var, remove any leading dereference character.
' rather hacky. Would be better to cast variable to varptr during semanting (well done if you can work out where!)
If arg.exprType.EqualsType( ty.ActualType() ) And (ty._flags & TType.T_VAR) And ( (arg.exprType._flags & TType.T_VAR) Or (TSelfExpr(arg) And TObjectType(arg.exprType) And TObjectType(arg.exprType).classdecl.IsStruct())) Then
If tc.startswith("*") Then
tc = tc[1..]
End If
End If
t:+ tc
't:+TransTemplateCast( ty,args[i].exprType,args[i].Trans() )
End If
Else
argDecl.Semant()
' default values
Local init:TExpr = argDecl.init
If init Then
If TConstExpr(init) Then
If TObjectType(TConstExpr(init).exprType) Then
t:+"NULLNULLNULL"
' And TNullDecl(TObjectType(TConstExpr(init).exprType).classDecl)) Or (TConstExpr(init).value = "bbNullObject") Then
If TStringType(argDecl.ty) Then
t :+ "&bbEmptyString"
Else If TArrayType(argDecl.ty) Then
t :+ "&bbEmptyArray"
Else
t :+ "&bbNullObject"
End If
Else
t:+ argDecl.init.Trans()
End If
Else If TFunctionPtrType(ty) Then
If TInvokeExpr(init) Then
t:+ TInvokeExpr(init).decl.munged
End If
Else
t:+ argDecl.init.Trans()
End If
End If
End If
Next
Return Bra(t)
End Method
' translate to C cast
Method TransCast:String(funcPtr:TFunctionPtrType)
If Not funcPtr Then
Return ""
End If
Local s:String = "("
s:+ TransType(funcPtr.func.retType, "")
s:+ "(*)("
For Local i:Int=0 Until funcPtr.func.argDecls.Length
If i Then
s:+ ","
End If
s:+ TransType(funcPtr.func.argDecls[i].ty, "")
Next
s:+ ")"
s:+ ")"
Return s
End Method
Method TransArgsTypes$( args:TExpr[],declArgTypes:TType[])
Local t$
For Local i:Int=0 Until args.Length
If t t:+","
t:+TransTemplateCast( declArgTypes[i],args[i].exprType,args[i].Trans() )
Next
Return Bra(t)
End Method
Method TransPtrCast$( ty:TType,src:TType,expr$,cast$ )
If IsPointerType(ty, 0, TType.T_POINTER | TType.T_VARPTR | TType.T_VAR) Or TFunctionPtrType(ty) Then
' TODO : pointer stuff
If TNullType(src) Return TransValue(ty, Null)
Return expr
End If
'If expr = "NULL" DebugStop
' If TIntType(ty) And TStringType(src) Then
'DebugStop
' Return "bbObjectDowncast" + Bra(expr + ",&" + TStringType(src).cDecl.munged)
' End If
If TNullType(src)
Return TransValue(ty, Null)
End If
If TStringType(ty) And TObjectType(src) Then
If Not TStringType(ty).cDecl Then
ty.Semant()
End If
'If TNullDecl(TObjectType(src).classDecl) Then
' Return "&bbEmptyString"
'End If
Return Bra("(BBString *)bbObjectStringcast" + Bra("(BBOBJECT)" + expr ))
End If
'If TArrayType(ty) And TObjectType(src) Then
' If TNullDecl(TObjectType(src).classDecl) Then
' Return "&bbEmptyArray"
' End If
'End If
If TVarPtrType(src) And TNumericType(ty) Then
Return "*" + expr
End If
If TIntType(ty) And TStringType(src) Then
Return Bra(expr + " != &bbEmptyString")
End If
' If TIntType(ty) And TObjectType(src) Then
' Return Bra(expr + " != &bbNullObject")
' End If
If TObjectType(ty) And TStringType(src) Then
Return expr
End If
If Not TObjectType(ty) Or Not TObjectType(src) Then
InternalErr "TCTranslator.TransPtrCast"
End If
Local t$=TransType(ty, "TODO: TransPtrCast")
If src.GetClass().IsInterface() Or ty.GetClass().IsInterface() cast="dynamic"
If src.GetClass().IsInterface() And Not ty.GetClass().IsInterface() Then
Return cast+"_cast<"+TransType(ty, "TODO: TransPtrCast")+">"+Bra( expr )
End If
'upcast?
If src.GetClass().ExtendsClass( ty.GetClass() ) Return expr
If TObjectType(ty) Then
Return Bra(Bra(TransObject(TObjectType(ty).classDecl)) + "bbObjectDowncast" + Bra("(BBOBJECT)" + expr + ",(BBClass*)&" + TObjectType(ty).classDecl.munged))
End If
Return cast+"_cast<"+TransType(ty, "TODO: TransPtrCast")+">"+Bra( expr )
End Method
'***** Utility *****
Method TransLocalDecl$( decl:TLocalDecl,init:TExpr, declare:Int = False, outputInit:Int = True )
Local initTrans:String
If outputInit Then
Local cast:String
If (TObjectType(decl.ty) And Not TObjectType(decl.ty).classDecl.IsStruct()) Or TFunctionPtrType(decl.ty) Then
cast = Bra(TransType(decl.ty, ""))
End If
If TInvokeExpr(init) And Not TInvokeExpr(init).invokedWithBraces Then
initTrans = "=" + cast + TInvokeExpr(init).decl.munged
Else
If Not TArrayType(decl.ty) Or Not TArrayType(decl.ty).isStatic Then
initTrans = "=" + cast + init.Trans()
Else
initTrans = "[" + TArrayType(decl.ty).length + "]=" + TransValue(decl.ty, Null, True)
End If
End If
End If
Local volTrans:String = " "
If decl.volatile Then
volTrans = " volatile "
End If
If Not declare And opt_debug Then
Local ty:TType = decl.ty
If Not TObjectType( ty ) Or (TObjectType( ty ) And Not TObjectType( ty ).classDecl.IsStruct()) Then
If TIntrinsicType(ty) Then
If Not TConstExpr(init) Then
Return decl.munged + initTrans
End If
Else If Not TArrayType(ty) Or Not TArrayType(ty).isStatic Then
Return decl.munged + initTrans
End If
Else If TObjectType( ty ) And TObjectType( ty ).classDecl.IsStruct() Then
If Not TConstExpr(init) Then
Return decl.munged + initTrans
End If
End If
Else
If TFunctionPtrType(decl.ty) Then
If TInvokeExpr(init) And Not TInvokeExpr(init).invokedWithBraces Then
Return TransType( decl.ty, decl.munged ) + " = " + TInvokeExpr(init).decl.munged
Else
Return TransType( decl.ty, decl.munged ) + initTrans
End If
Else
Local ty:TType = decl.ty
If TVoidType( ty ) Or Not ty Then
ty = init.exprType
End If
If TObjectType(ty) Then
If TObjectType(ty).classdecl.IsExtern() Then
If TObjectType(ty).classdecl.IsInterface() Then
Return TransType( ty, decl.munged )+" "+decl.munged + initTrans
Else
Return TransType( ty, decl.munged )+ volTrans +decl.munged + initTrans
End If
Else
If TObjectType(ty).classdecl.IsStruct() Then
Return TransType( ty, decl.munged )+" "+decl.munged + initTrans
Else
'If decl.volatile Then
Return TransType( ty, decl.munged )+ volTrans +decl.munged + initTrans
'Else
' Return TransType( ty, decl.munged )+" "+decl.munged + initTrans
'End If
End If
End If
Else
Return TransType( ty, decl.munged )+ volTrans +decl.munged + initTrans
End If
End If
End If
End Method
Method TransLocalDeclNoInit$( decl:TVarDecl )
If TFunctionPtrType(decl.ty) Then
Return TransType( decl.ty, decl.munged ) + "=" + TransValue(decl.ty, "")
Else
If TObjectType(decl.ty) Then
If TObjectType(decl.ty).classdecl.IsExtern() Then
If Not TObjectType(decl.ty).classdecl.IsStruct() Then
Return TransType( decl.ty, decl.munged )+" "+decl.munged+"=" + TransValue(decl.ty, "")
Else
Return TransType( decl.ty, decl.munged )+" "+decl.munged
End If
Else
If Not TObjectType(decl.ty).classdecl.IsStruct() Then
Local cast:String = Bra(TransObject(TObjectType(decl.ty).classDecl))
If TLocalDecl(decl) And TLocalDecl(decl).volatile Then
Return TransType( decl.ty, decl.munged )+" volatile "+decl.munged + "=" + cast + TransValue(decl.ty, "")
Else
Return TransType( decl.ty, decl.munged )+" "+decl.munged + "=" + cast + TransValue(decl.ty, "")
End If
Else
Return TransType( decl.ty, decl.munged )+" "+decl.munged + "=" + TransValue(decl.ty, "")
End If
End If
Else
If TLocalDecl(decl) And TLocalDecl(decl).volatile Then
Return TransType( decl.ty, decl.munged )+" volatile "+decl.munged + "=" + TransValue(decl.ty, "")
Else
If TArrayType(decl.ty) And TArrayType(decl.ty).isStatic Then
Local t:String = TransType( decl.ty, decl.munged )+" "+decl.munged + "[" + TArrayType(decl.ty).length + "]"
t :+ "={"
Local count:Int
For Local i:Int = 0 Until Int(TArrayType( decl.ty ).length)
count :+ 1
If i Then
t :+ ","
End If
If count = 100 Then
t :+ "~n"
count = 0
End If
t :+ TransValue(TArrayType( decl.ty ).elemType, "", True)
Next
Return t + "}"
Else
Return TransType( decl.ty, decl.munged )+" "+decl.munged + "=" + TransValue(decl.ty, "")
End If
End If
End If
End If
End Method
Method TransGlobalDecl$( gdecl:TGlobalDecl )
Local glob:String
If Not gdecl.funcGlobal Then
If Not (gdecl.attrs & DECL_INITONLY) Then
glob :+"static " + TransThreadedGlobal(gdecl) + TransType( gdecl.init.exprType, gdecl.munged )+" "
End If
glob :+ gdecl.munged+"="
If (TNewObjectExpr(gdecl.init) Or TNewArrayExpr(gdecl.init)) And Not (gdecl.attrs & DECL_INITONLY) Then
glob :+ "0;~n"
glob :+ indent + "if (" + gdecl.munged + "==0) {~n"
glob :+ indent + "~t" + gdecl.munged + "=" + gdecl.init.Trans() + ";~n"
glob :+ indent + "}"