def runstring(self, s):
ast = parse(s)
bc = compile_ast("<input>", s, ast)
if self.debug: # pragma: no cover
print bc.dump()
return self.run(bc)
def test_basic(self):
assert parse("12+1") == BinaryOp("+", ConstInt(12), ConstInt(1))
def test_statements(self):
assert parse("a=3;a") == SemicolonExpr(
Assignment("a", ConstInt(3)), Variable("a"))
def test_variable_assignment(self):
assert parse("a=3") == Assignment("a", ConstInt(3))
def test_parse_floats(self):
assert parse("1.2+1") == BinaryOp("+", ConstFloat(1.2), ConstInt(1))
def check_compile(self, source, expected=None):
ast = parse(source)
bc = compile_ast('<input>', source, ast)
if expected is not None:
self.compare(bc, expected)
return bc
def interpret(self, source):
bc = compile_ast("<input>", source, parse(source))
frame = run_bytecode(bc)
return frame.pop()