def test_execute_int_parameter(self):
from VM import VM
vm = VM()
c = ClassDefinition()
c.namespace = 'a'
c.name = 'b'
v = Variable()
v.name = 'xyz'
v.type = Types.Int32
r = ReferenceType()
t = Types.register_custom_type(c)
r.type = t
r.add_field(v)
vm.stack.push(r)
vm.stack.push(Variable(9876))
x = stfld('int32 a.b::xyz')
x.execute(vm)
self.assertEqual(vm.stack.count(), 0)
self.assertEqual(r.fields[0].value, 9876)
def execute(self, vm):
t = Types.resolve_type(self.typeName)
r = ReferenceType()
r.type = t
for f in t.classRef.fieldDefinitions:
o = Variable()
o.type = f.type
o.name = f.name
o.value = 0 # fixme - reference types?
r.fields.append(o)
r.fieldNames.append(f.name)
vm.stack.push(r)
namespace = t.namespace + '.' + t.name
name = 'ctor'
methodDefinition = vm.find_method_by_signature(
namespace, name, None, None) # fixme - should name have a . in it?
if methodDefinition is None:
raise Exception("Couldn't find " + name + " method for " +
namespace)
m = methodDefinition.get_method()
#parameter = Variable()
#parameter.value = r
m.parameters = [
r
] # fixme - create a new method object so we don't overwrite the parameters?
#fixme - should we even use parameters? or just the stack?
vm.execute_method(m)
def test_execute_reference_type_stores_reference_type_in_local_but_doesnt_change_name(self):
from VM import VM
vm = VM()
x = stloc('0')
m = MethodDefinition()
localr = ReferenceType()
localr.name = 'foobar'
m.locals.append(localr)
vm.set_current_method(m)
r2 = ReferenceType()
vm.stack.push(r2)
x.execute(vm)
self.assertEqual(vm.stack.count(), 0)
self.assertEqual(m.locals[0], r2)
self.assertEqual(m.locals[0].name, 'foobar')
def test_callvirt_one_parameter_instance_puts_this_pointer_and_parameter_on_stack(
self):
from VM import VM
from MethodDefinition import MethodDefinition
vm = VM()
paramObject = Variable()
paramObject.type = Types.Int32
m = MethodDefinition()
m.name = 'TestMethod'
m.namespace = 'A.B'
m.returnType = Types.Int32
m.parameters = [paramObject]
m.names = 'A.B'
m.attributes.append(MethodDefinition.AttributeTypes['instance'])
vm.methods.append(m)
r = ReferenceType()
vm.stack.push(r)
v = Variable(8888)
vm.stack.push(v)
self.assertEqual(vm.currentMethod, None)
c = callvirt('instance int32 A.B::TestMethod ( int32 )')
c.execute(vm)
self.assertEqual(vm.currentMethod.methodDefinition, m)
self.assertEqual(vm.stack.get_number_of_frames(), 2)
self.assertEqual(len(vm.current_method().parameters), 2)
self.assertEqual(vm.current_method().parameters[1], v)
self.assertEqual(vm.current_method().parameters[0], r)
def test_execute_reference_type_stores_reference_type_in_local_but_doesnt_change_name(
self):
from VM import VM
vm = VM()
x = stloc('0')
m = MethodDefinition()
localr = ReferenceType()
localr.name = 'foobar'
m.locals.append(localr)
vm.set_current_method(m)
r2 = ReferenceType()
vm.stack.push(r2)
x.execute(vm)
self.assertEqual(vm.stack.count(), 0)
self.assertEqual(m.locals[0], r2)
self.assertEqual(m.locals[0].name, 'foobar')
def test_execute_multiple_fields(self):
from VM import VM
vm = VM()
c = ClassDefinition()
c.namespace = 'a'
c.name = 'b'
v = Variable()
v.name = 'abc'
v.type = Types.Int32
v2 = Variable()
v2.name = 'def'
v2.type = Types.Int32
c.fieldDefinitions.append(v2)
r = ReferenceType()
t = Types.register_custom_type(c)
r.type = t
r.add_field(v)
r.add_field(v2)
vm.stack.push(r)
x = ldfld('int32 ConsoleApplication1.foo::def')
x.execute(vm)
self.assertEqual(vm.stack.count(), 1)
self.assertEqual(r.fields[1], vm.stack.pop())
def parse_locals(self, context):
from ParserContext import ParseException
locals = []
token = context.get_next_token()
if token != 'init':
raise ParseException(
'Expected init, found ' +
token) # fixme - only required for verifiable methods
token = context.get_next_token()
if token != '(':
raise ParseException('Expected (, found' + token)
token = context.get_next_token()
lastToken = ''
while not token.endswith(')'):
v = Variable()
if token.startswith('['):
v.alias = token[1:-1]
lastToken = token
token = context.get_next_token()
if token == 'class':
v2 = ReferenceType()
v2.alias = v.alias
v2.type = Types.resolve_type(context.get_next_token())
v = v2
elif token.endswith('[]'): # array
v.type = Types.Array
v.arrayType = Types.resolve_type(token[:-2])
else:
v.type = Types.BuiltInTypes[token] # fixme - non-builtin types
locals.append(v)
lastToken = token
token = context.get_next_token()
#if token.endswith(')'):
# v.name = token[:-1]
# token = ')'
#else:
v.name = token
lastToken = token
token = context.get_next_token()
return locals
def parse_locals(self, context):
from ParserContext import ParseException
locals = []
token = context.get_next_token()
if token != 'init':
raise ParseException('Expected init, found ' + token) # fixme - only required for verifiable methods
token = context.get_next_token()
if token != '(':
raise ParseException('Expected (, found' + token)
token = context.get_next_token()
lastToken = ''
while not token.endswith(')'):
v = Variable()
if token.startswith('['):
v.alias = token[1:-1]
lastToken = token
token = context.get_next_token()
if token == 'class':
v2 = ReferenceType()
v2.alias = v.alias
v2.type = Types.resolve_type(context.get_next_token())
v = v2
elif token.endswith('[]'): # array
v.type = Types.Array
v.arrayType = Types.resolve_type(token[:-2])
else:
v.type = Types.BuiltInTypes[token] # fixme - non-builtin types
locals.append(v)
lastToken = token
token = context.get_next_token()
#if token.endswith(')'):
# v.name = token[:-1]
# token = ')'
#else:
v.name = token
lastToken= token
token = context.get_next_token()
return locals
def test_execute_single_field(self):
from VM import VM
vm = VM()
c = ClassDefinition()
c.namespace = 'ConsoleApplication1'
c.name = 'foo'
v = Variable()
v.name = 'z'
v.type = Types.Int32
r = ReferenceType()
t = Types.register_custom_type(c)
r.type = t
r.add_field(v)
vm.stack.push(r)
x = ldfld('int32 ConsoleApplication1.foo::z')
x.execute(vm)
self.assertEqual(vm.stack.count(), 1)
self.assertEqual(r.fields[0], vm.stack.pop())
def test_execute_reference_type_parameter(self):
from VM import VM
vm = VM()
foo = ClassDefinition()
foo.namespace = 'ConsoleApplication1'
foo.name = 'foo'
fooType = Types.register_custom_type(foo)
fooObject = ReferenceType()
fooObject.name = 'f'
fooObject.type = fooType
fooObject.value = Variable(3333)
bar = ClassDefinition()
bar.namespace = 'ConsoleApplication1'
bar.name = 'bar'
barType = Types.register_custom_type(bar)
barObject = ReferenceType()
barObject.type = barType
field = ReferenceType()
field.name = 'f'
field.type = fooType
barObject.add_field(field)
vm.stack.push(barObject)
x = ldfld('class ConsoleApplication1.foo ConsoleApplication1.bar::f')
x.execute(vm)
self.assertEqual(vm.stack.count(), 1)
self.assertEqual(barObject.fields[0], vm.stack.pop())