def visit(self, node: ast.DivNode, dest):
# print("------------visit node: DivNode")
left = self.define_internal_local()
self.visit(node.left, left)
right = self.define_internal_local()
self.visit(node.right, right)
label1 = self.build_label()
labelerror = self.build_label()
labelend = self.build_label()
vhalt = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(vhalt, right, 0))
self.register_instruction(cil.CILGotoIfNode(vhalt, label1))
self.register_instruction(cil.CILGotoNode(labelerror))
self.register_instruction(label1)
self.register_instruction(cil.CILDivNode(dest, left, right))
self.register_instruction(cil.CILGotoNode(labelend))
self.register_instruction(labelerror)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_4']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(labelend)
def visit(self, node: ast.DispatchDot, dest):
# print("------------visit node: DispatchDot")
params = []
ctype_ = node.expr0.computedType
method_ = self.dottypes[ctype_].methods[node.methodName].finfo
for i, expr in enumerate(node.paramsList):
vlocal = self.define_internal_local()
self.visit(expr, vlocal)
p = method_.paramsType[i]
v_box = self._ifobjectboxing(vlocal, expr.computedType, p)
params.append(v_box)
v_eval = self.define_internal_local()
self.visit(node.expr0, v_eval)
v_box_eval = self._ifboxing(v_eval, node.expr0.computedType)
vhalt = self.define_internal_local()
self.register_instruction(
cil.CILMinusNode(vhalt, self.void, v_box_eval))
label1 = self.build_label()
labelerror = self.build_label()
labelend = self.build_label()
self.register_instruction(cil.CILGotoIfNode(vhalt, label1))
self.register_instruction(cil.CILGotoNode(labelerror))
self.register_instruction(label1)
v_type = self.define_internal_local()
self.register_instruction(cil.CILTypeOfNode(v_type, v_box_eval))
self.register_instruction(cil.CILSaveState())
self.register_instruction(cil.CILParamNode(v_box_eval))
for p in params:
self.register_instruction(cil.CILParamNode(p))
self.register_instruction(
cil.CILDynamicCallNode(dest, v_type, method_.vmholder))
self.register_instruction(cil.CILGotoNode(labelend))
self.register_instruction(labelerror)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_1']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(labelend)
def visit(self, node: ast.Conditional, dest):
# print("------------visit node: Conditional")
if_eval = self.define_internal_local()
self.visit(node.ifexpr, if_eval)
label_then = self.build_label()
label_end = self.build_label()
self.register_instruction(cil.CILGotoIfNode(if_eval, label_then))
self.visit(node.elseexpr, dest)
self.register_instruction(cil.CILGotoNode(label_end))
self.register_instruction(label_then)
self.visit(node.thenexpr, dest)
self.register_instruction(label_end)
def visit(self, node: ast.IsVoid, dest):
# print("------------visit node: IsVoid")
vlocal = self.define_internal_local()
self.visit(node.expr, vlocal)
v_box = self._ifboxing(vlocal, node.expr.computedType)
# self.register_instruction(cil.CILMinusNode(dest, self.void, v_box))
rest = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(rest, self.void, v_box))
label_1 = self.build_label()
label_2 = self.build_label()
self.register_instruction(cil.CILGotoIfNode(rest, label_1))
self.register_instruction(cil.CILAssignNode(dest, 1))
self.register_instruction(cil.CILGotoNode(label_2))
self.register_instruction(label_1)
self.register_instruction(cil.CILAssignNode(dest, 0))
self.register_instruction(label_2)
def visit(self, node: ast.DispatchSelf, dest):
# print("------------visit node: DispatchSelf")
params = []
method_ = self.dottypes[self.current_class.cinfo.name].methods[
node.methodName].finfo
vself = self._find('self')
vhalt = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(vhalt, self.void, vself))
label1 = self.build_label()
labelerror = self.build_label()
labelend = self.build_label()
self.register_instruction(cil.CILGotoIfNode(vhalt, label1))
self.register_instruction(cil.CILGotoNode(labelerror))
self.register_instruction(label1)
for i, expr in enumerate(node.paramsList):
vlocal = self.define_internal_local()
self.visit(expr, vlocal)
p = method_.paramsType[i]
v_box = self._ifobjectboxing(vlocal, expr.computedType, p)
params.append(v_box)
self.register_instruction(cil.CILSaveState())
self.register_instruction(cil.CILParamNode(vself))
for p in params:
self.register_instruction(cil.CILParamNode(p))
self.register_instruction(cil.CILStaticCallNode(dest, method_.name))
self.register_instruction(cil.CILGotoNode(labelend))
self.register_instruction(labelerror)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_1']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(labelend)
def visit(self, node: ast.Case, dest):
# print("------------visit node: Case")
vexpr = self.define_internal_local()
self.visit(node.case0, vexpr)
vbox = self._ifboxing(vexpr, node.case0.computedType)
vhalt = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(vhalt, self.void, vbox))
label1 = self.build_label()
labelerror = self.build_label()
labelend = self.build_label()
self.register_instruction(cil.CILGotoIfNode(vhalt, label1))
self.register_instruction(cil.CILGotoNode(labelerror))
self.register_instruction(label1)
texpr = self.define_internal_local()
self.register_instruction(cil.CILTypeOfNode(texpr, vbox))
expr_list = [self.visit(case) for case in node.exprList]
def visit(self, node: ast.Loop, dest):
# print("------------visit node: Loop")
cond_eval = self.define_internal_local()
label_entry = self.build_label()
self.register_instruction(label_entry)
self.visit(node.whileexpr, cond_eval)
label_end = self.build_label()
label_loop = self.build_label()
self.register_instruction(cil.CILGotoIfNode(cond_eval, label_loop))
self.register_instruction(cil.CILGotoNode(label_end))
self.register_instruction(label_loop)
vbody = self.define_internal_local()
self.visit(node.loopexpr, vbody)
self.register_instruction(cil.CILGotoNode(label_entry))
self.register_instruction(label_end)
self.register_instruction(cil.CILAssignNode(dest, self.void))
def visit(self, node: ast.Equal, dest):
# print("------------visit node: Equal")
vleft = self.define_internal_local()
vright = self.define_internal_local()
self.visit(node.left, vleft)
self.visit(node.right, vright)
if node.left.computedType == 'String':
vlength_r = self.define_internal_local()
self.register_instruction(cil.CILLengthNode(vlength_r, vright))
vlength_l = self.define_internal_local()
self.register_instruction(cil.CILLengthNode(vlength_l, vleft))
self.register_instruction(
cil.CILMinusNode(dest, vlength_l, vlength_r))
label_loop = self.build_label()
label_loopbody = self.build_label()
label_equal = self.build_label()
label_notequal = self.build_label()
label_end = self.build_label()
self.register_instruction(cil.CILGotoIfNode(dest, label_notequal))
pos = self.define_internal_local()
self.register_instruction(cil.CILAssignNode(pos, 0))
self.register_instruction(label_loop)
self.register_instruction(
cil.CILGotoIfNode(vlength_r, label_loopbody))
self.register_instruction(cil.CILGotoNode(label_equal))
self.register_instruction(label_loopbody)
cleft = self.define_internal_local()
cright = self.define_internal_local()
self.register_instruction(cil.CILGetIndexNode(cleft, vleft, pos))
self.register_instruction(cil.CILGetIndexNode(cright, vright, pos))
self.register_instruction(cil.CILMinusNode(vlength_r, vlength_r,
1))
self.register_instruction(cil.CILPlusNode(pos, pos, 1))
vrest = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(vrest, cleft, cright))
self.register_instruction(cil.CILGotoIfNode(vrest, label_notequal))
self.register_instruction(cil.CILGotoNode(label_loop))
self.register_instruction(label_equal)
self.register_instruction(cil.CILAssignNode(dest, 1))
self.register_instruction(cil.CILGotoNode(label_end))
self.register_instruction(label_notequal)
self.register_instruction(cil.CILAssignNode(dest, 0))
self.register_instruction(label_end)
else:
rest = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(rest, vleft, vright))
label_1 = self.build_label()
label_2 = self.build_label()
self.register_instruction(cil.CILGotoIfNode(rest, label_1))
self.register_instruction(cil.CILAssignNode(dest, 1))
self.register_instruction(cil.CILGotoNode(label_2))
self.register_instruction(label_1)
self.register_instruction(cil.CILAssignNode(dest, 0))
self.register_instruction(label_2)
expr_list = [self.visit(case) for case in node.exprList]
label_init = self.build_label()
self.register_instruction(label_init)
label_error = self.build_label()
for tlocal, label_expr, _, _ in expr_list:
vinternal = self.define_internal_local()
# self.register_instruction(cil.CILMinusNode(vinternal, tlocal, texpr))
rest = self.define_internal_local()
self.register_instruction(cil.CILMinusNode(rest, tlocal, texpr))
label_1 = self.build_label()
label_2 = self.build_label()
self.register_instruction(cil.CILGotoIfNode(rest, label_1))
self.register_instruction(cil.CILAssignNode(vinternal, 1))
self.register_instruction(cil.CILGotoNode(label_2))
self.register_instruction(label_1)
self.register_instruction(cil.CILAssignNode(vinternal, 0))
self.register_instruction(label_2)
# self.register_instruction(cil.CILMinusNode(vinternal, 1, vinternal))
self.register_instruction(cil.CILGotoIfNode(vinternal, label_expr))
vobject = self.define_internal_local()
self.register_instruction(
cil.CILAllocateNode(vobject, self.dottypes['Object'].cinfo))
self.register_instruction(cil.CILTypeOfNode(vobject, vobject))
vo_comp = self.define_internal_local()
# self.register_instruction(cil.CILMinusNode(vo_comp, vobject, texpr))
def string_bi(self, object_type):
attrs = {'value': VariableInfo('value', vmholder=1)}
methods = copy(object_type.methods)
self.change_current_function()
self.arguments = [
cil.CILArgNode(VariableInfo('self', vmholder=1)),
cil.CILArgNode(VariableInfo('string2', vmholder=2))
]
vlocal1 = self.define_internal_local()
self.register_instruction(
cil.CILGetAttribNode(vlocal1, self.arguments[0].vinfo,
attrs['value'].vmholder))
vlocal2 = self.define_internal_local()
self.register_instruction(
cil.CILConcatNode(vlocal2, vlocal1, self.arguments[1].vinfo))
# self.register_instruction(cil.CILSetAttribNode(self.arguments[0].vinfo, 'value', vlocal2))
self.register_instruction(cil.CILReturnNode(vlocal2))
concat_func = cil.CILFunctionNode(
MethodInfo(self.build_funcname('concat'),
paramsType=['String'],
returnType='String'), self.arguments, self.localvars,
self.instructions)
self.register_function(concat_func)
self.change_current_function()
self.arguments = [cil.CILArgNode(VariableInfo('self', vmholder=1))]
v_local3 = self.define_internal_local()
self.register_instruction(
cil.CILGetAttribNode(v_local3, self.arguments[0].vinfo,
attrs['value'].vmholder))
v_local4 = self.define_internal_local()
self.register_instruction(cil.CILLengthNode(v_local4, v_local3))
self.register_instruction(cil.CILReturnNode(v_local4))
length_func = cil.CILFunctionNode(
MethodInfo(self.build_funcname('length'), returnType='Int'),
self.arguments, self.localvars, self.instructions)
self.register_function(length_func)
# Substring
self.change_current_function()
self.arguments = [
cil.CILArgNode(VariableInfo('self', vmholder=1)),
cil.CILArgNode(VariableInfo('i', vmholder=2)),
cil.CILArgNode(VariableInfo('l', vmholder=3))
]
label_val = self.build_label()
label_nval = self.build_label()
label_fin = self.build_label()
label_nval1 = self.build_label()
label_fin1 = self.build_label()
label_nval2 = self.build_label()
label_fin2 = self.build_label()
vvar2 = self.define_internal_local()
self.register_instruction(cil.CILAssignNode(vvar2, 0))
vvar1 = self.define_internal_local()
self.register_instruction(
cil.CILLessThan(vvar1, self.arguments[1].vinfo, vvar2))
self.register_instruction(cil.CILGotoIfNode(vvar1, label_nval1))
self.register_instruction(
cil.CILLessThan(vvar1, self.arguments[2].vinfo, vvar2))
self.register_instruction(cil.CILGotoIfNode(vvar1, label_nval2))
self.register_instruction(
cil.CILGotoIfNode(self.arguments[2].vinfo, label_val))
self.register_instruction(cil.CILGotoNode(label_nval))
self.register_instruction(label_val)
v_local5 = self.define_internal_local()
self.register_instruction(
cil.CILGetAttribNode(v_local5, self.arguments[0].vinfo,
attrs['value'].vmholder))
vhalt = self.define_internal_local()
vlength = self.define_internal_local()
self.register_instruction(cil.CILLengthNode(vlength, v_local5))
vsum = self.define_internal_local()
self.register_instruction(
cil.CILPlusNode(vsum, self.arguments[1].vinfo,
self.arguments[2].vinfo))
self.register_instruction(cil.CILMinusNode(vsum, vsum, 1))
self.register_instruction(cil.CILLessThan(vhalt, vsum, vlength))
label1 = self.build_label()
labelerror = self.build_label()
labelend = self.build_label()
self.register_instruction(cil.CILGotoIfNode(vhalt, label1))
self.register_instruction(cil.CILGotoNode(labelerror))
self.register_instruction(label1)
v_local6 = self.define_internal_local()
self.register_instruction(
cil.CILSubstringNode(v_local6, v_local5, self.arguments[1].vinfo,
self.arguments[2].vinfo))
self.register_instruction(cil.CILReturnNode(v_local6))
self.register_instruction(cil.CILGotoNode(labelend))
self.register_instruction(labelerror)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_5']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(labelend)
self.register_instruction(cil.CILGotoNode(label_fin))
self.register_instruction(label_nval)
msg = self.register_data("")
var = self.define_internal_local()
self.register_instruction(cil.CILLoadNode(var, msg))
self.register_instruction(cil.CILReturnNode(var))
self.register_instruction(label_fin)
self.register_instruction(cil.CILGotoNode(label_fin2))
self.register_instruction(label_nval2)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_5']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(label_fin2)
self.register_instruction(cil.CILGotoNode(label_fin1))
self.register_instruction(label_nval1)
var1 = self.define_internal_local()
self.register_instruction(
cil.CILLoadNode(var1, self.dotdata['exception_5']))
self.register_instruction(cil.CILPrintStrNode(var1))
self.register_instruction(cil.CILErrorNode())
self.register_instruction(label_fin1)
substr_func = cil.CILFunctionNode(
MethodInfo(self.build_funcname('substr'),
paramsType=['Int', 'Int'],
returnType='String'), self.arguments, self.localvars,
self.instructions)
self.register_function(substr_func)
length_func.finfo.vmholder = len(methods.keys()) + 2
methods['length'] = length_func
concat_func.finfo.vmholder = len(methods.keys()) + 2
methods['concat'] = concat_func
substr_func.finfo.vmholder = len(methods.keys()) + 2
methods['substr'] = substr_func
cinfo = ClassInfo('String', 4 * len(attrs.keys()),
4 * len(methods.keys()), object_type)
return cil.CILTypeNode(cinfo, attrs, methods)