def watcher(new_value):
if not branches:
branches[value] = bs.program.render_code[label.position:label.position + patch_len]
if new_value in branches:
data = branches[value]
else:
prgm = get_redirection(lambda rdi: get_jmp(compiler.translate("branch_on_watched", flow, stack=call_stack, this=func(new_value))))
data = prgm.render_code
prgm.render_code = OffsetListProxy(bs.program.render_code, label.position)
branches[value] = data
bs.program.render_code[label.position:label.position + patch_len] = data
def main():
global sketchname
sketchname = os.path.split(args.file)[1].split('.py')[0]
sketchfile = open(args.file)
translated = translate(sketchfile.read())
write_translation(translated['code'], sketchname)
if args.compile:
run(sketchname)
elif args.upload:
run(sketchname, upload=True)
def compile(source, isFile=False):
text = InputStream(source)
if isFile:
text = FileStream(source)
lexer = DecafeLexer(text)
stream = CommonTokenStream(lexer)
parser = MyParser(stream)
tree = parser.program()
errors = parser.errMsg
# print(Trees.toStringTree(tree, None, parser))
tsymbol = MyVistor()
# make symbol table
tsymbol.visit(tree)
# tsymbol.symTable.Print() # print table
symTable = tsymbol.symTable.ToString() # get json of tables
# make tree
treeView, _ = convertor.convertInit(tree)(tree, 0)
treeView.render('tree.gv', "./web/static/img")
# intermediate code
inCode = IntermediateCodeGenerator(tsymbol.symTable)
inCode.visit(tree)
iCode = []
for l in inCode.lines:
if l.type != "label":
iCode.append("\t" + str(l))
else:
iCode.append(str(l))
iCode = "\n".join(iCode)
# compile to NASM
symT = tsymbol.symTable
with open('code.asm', 'w') as f:
for line in translate(symT, inCode.lines):
f.write("%s\n" % line)
print(iCode)
errors.extend(tsymbol.errorMsg)
errors = list(set(errors))
return symTable, errors, iCode
def make_root():
return compiler.translate("make_root", compiler.Flow(), this=[
lambda bs: bs.code.add(isa.push(registers.rbp)),
lambda bs: bs.code.add(isa.mov(registers.rbp, registers.rsp)),
lambda bs: bs.flow.try_stack.append(uncaught_exception),
#main_module.load(),
#ast.Call(
# func=lambda bs: None,
# args=[],
# keywords=[],
# starargs=None,
# kwargs=None,
# ),
tree.body,
lambda bs: bs.code.add(isa.mov(registers.rsp, registers.rbp)),
lambda bs: bs.code.add(isa.pop(registers.rbp)),
lambda bs: bs.code.add(isa.ret()),
compiler.end,
])
def watcher(new_value):
if not branches:
branches[value] = bs.program.render_code[label.
position:label.position +
patch_len]
if new_value in branches:
data = branches[value]
else:
prgm = get_redirection(lambda rdi: get_jmp(
compiler.translate("branch_on_watched",
flow,
stack=call_stack,
this=func(new_value))))
data = prgm.render_code
prgm.render_code = OffsetListProxy(bs.program.render_code,
label.position)
branches[value] = data
bs.program.render_code[label.position:label.position +
patch_len] = data
def make_root():
return compiler.translate(
"make_root",
compiler.Flow(),
this=[
lambda bs: bs.code.add(isa.push(registers.rbp)),
lambda bs: bs.code.add(isa.mov(registers.rbp, registers.rsp)),
lambda bs: bs.flow.try_stack.append(uncaught_exception),
#main_module.load(),
#ast.Call(
# func=lambda bs: None,
# args=[],
# keywords=[],
# starargs=None,
# kwargs=None,
# ),
tree.body,
lambda bs: bs.code.add(isa.mov(registers.rsp, registers.rbp)),
lambda bs: bs.code.add(isa.pop(registers.rbp)),
lambda bs: bs.code.add(isa.ret()),
compiler.end,
])