def visitVarDeclInitialize(self, ctx: CParser.VarDeclInitializeContext):
name = ctx.Id().getText()
# Check if it's an array initialization
try:
size = ctx.IntConst().getText()
initializeList = None
try:
list = self.visitArrayInitializeList(ctx.arrayInitializeList())
initializeList = Variable.ArrayInitializeList(
ctx.start.line, ctx.start.column, list)
except:
pass
try:
string = ctx.StringConst()
string = string.getText()[1:-1]
list = []
for char in string:
list.append(
Literals.Char(ctx.start.line, ctx.start.column,
"'" + char + "'"))
initializeList = Variable.ArrayInitializeList(
ctx.start.line, ctx.start.column, list)
except:
pass
return Variable.ArrayInitialize(ctx.start.line, ctx.start.column,
name, size, initializeList)
except:
expression = None
try:
expression = self.visitSimpleExpression(ctx.simpleExpression())
except:
pass
return Variable.VarDeclInitialize(ctx.start.line, ctx.start.column,
name, expression)
def visitVarDeclaration(self, ctx: CParser.VarDeclarationContext):
type = self.visitTypeSpecifier(ctx.typeSpecifier())
varDeclList = Variable.VarDeclList(
ctx.start.line, ctx.start.column,
self.visitVarDeclList(ctx.varDeclList()))
return Variable.VariableDecl(ctx.start.line, ctx.start.column, type,
varDeclList)
def Factor(self, pb):
retval = None
if self.CurrentToken == TOKEN.TOK_NUMERIC:
retval = NumericConstant(self.GetNumber())
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_STRING:
retval = StringLiteral(self.last_str)
self.CurrentToken = self.GetToken()
elif self.CurrentToken in [TOKEN.TOK_BOOL_FALSE, TOKEN.TOK_BOOL_TRUE]:
retval = BooleanConstant(True if self.CurrentToken ==
TOKEN.TOK_BOOL_TRUE else False)
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_OPAREN:
self.CurrentToken = self.GetToken()
retval = self.BExpr(pb)
if self.CurrentToken != TOKEN.TOK_CPAREN:
raise Exception("Missing Closing Paranthesis")
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_PLUS or self.CurrentToken == TOKEN.TOK_SUB:
l_token = self.CurrentToken
self.CurrentToken = self.GetToken()
retval = self.Factor(pb)
if l_token == TOKEN.TOK_PLUS:
retval = UnaryPlus(retval)
else:
retval = UnaryMinus(retval)
elif self.CurrentToken == TOKEN.TOK_NOT:
l_token = self.CurrentToken
self.CurrentToken = self.GetToken()
retval = self.Factor(pb)
retval = LogicalNot(retval)
elif self.CurrentToken == TOKEN.TOK_UNQUOTED_STRING:
st = self.last_str
if not self.prog.IsFunction(st):
info = pb.get(st)
if not info:
raise Exception("Undefined symbol")
self.GetNext()
retval = Variable(info)
else:
if pb.GetProcedureName() == st:
p = pb.GetProcedure()
else:
p = self.prog.GetProc(st)
ptr = self.ParseCallProc(pb, p)
self.GetNext()
retval = ptr
else:
raise Exception("Illegal Token")
return retval
def Factor(self, com_cntxt):
retval = None
if self.CurrentToken == TOKEN.TOK_NUMERIC:
retval = NumericConstant(self.GetNumber())
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_STRING:
retval = StringLiteral(self.last_str)
self.CurrentToken = self.GetToken()
elif self.CurrentToken in [TOKEN.TOK_BOOL_FALSE, TOKEN.TOK_BOOL_TRUE]:
retval = BooleanConstant(True if self.CurrentToken == TOKEN.TOK_BOOL_TRUE else False)
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_OPAREN:
self.CurrentToken = self.GetToken()
retval = self.BExpr(com_cntxt)
if self.CurrentToken != TOKEN.TOK_CPAREN:
raise Exception("Missing Closing Paranthesis")
self.CurrentToken = self.GetToken()
elif self.CurrentToken == TOKEN.TOK_PLUS or self.CurrentToken == TOKEN.TOK_SUB:
l_token = self.CurrentToken
self.CurrentToken = self.GetToken()
retval = self.Factor(com_cntxt)
if l_token == TOKEN.TOK_PLUS:
retval = UnaryPlus(retval)
else:
retval = UnaryMinus(retval)
elif self.CurrentToken == TOKEN.TOK_NOT:
l_token = self.CurrentToken
self.CurrentToken = self.GetToken()
retval = self.Factor(com_cntxt)
retval = LogicalNot(retval)
elif self.CurrentToken == TOKEN.TOK_UNQUOTED_STRING:
st = self.last_str
info = com_cntxt.get(st)
if not info:
raise Exception("Undefined symbol")
self.GetNext()
retval = Variable(info)
else:
raise Exception("Illegal Token")
return retval
def __init__(self, var, ex):
self.variable = Variable(info=var)
self.ex = ex
def Execute(self, run_cntxt):
run_cntxt.add(self.sym_info)
self.var = Variable(self.sym_info)