def generate_genserver(directive, functions, records, folder):
"""
Generate genserver files from functions and records lists.
"""
d = directive
params = dict(module_name=d.value, author=get_directive_option(d, 'author'),\
author_email=get_directive_option(d, 'author-email'), \
description=get_directive_option(d, 'doc'), \
date=datetime.now().strftime('%d.%m.%Y'), \
export_functions=get_export_functions(functions), \
proxy_functions=get_proxy_functions(functions), \
handle_call_functions=get_handle_call_functions(functions))
params.update(ERLANG_MODULE_OPTIONS)
if records: # make hrl file
header_file = '%s.hrl' % d.value
params['header_files'] = '-include("%s").' % header_file
header_file = os.path.join(folder, header_file)
records_string = u''
for r in records:
if len(r.params) == 0:
print 'Warning: record %s has no fields, skip it...' % make_erlang_func(r.name)
continue
records_string += FUNC_DOC_HL + u'%% ' + r.doc + u'\n'
for p in r.params:
records_string += u'%%%% %s : %s\n' % (make_erlang_var(p.name), p.doc)
records_string += FUNC_DOC_HL
records_string += u'-record(%s, {%s}).\n\n' % \
(make_erlang_func(r.name), u', '.join([make_erlang_var(x.name) for x in r.params]))
if records_string:
f = open(header_file, 'wb')
f.write(records_string.encode('utf-8'))
f.close()
print 'Create file %s' % header_file
else:
print 'Header file %s was not prodused. ' % header_file
del params['header_files']
f_name = os.path.join(folder, '%s.erl' % d.value)
f = open(f_name, 'wb')
unicode_string = substitute(GEN_SERVER_TEMPLATE, params)
f.write(unicode_string.encode('utf-8'))
f.close()
print 'Create file %s' % f_name
if get_directive_option(d, 'supervisor'): # make supervisor for genserver
params['supervisor_name'] = '%s_sup' % d.value
f_name = os.path.join(folder, '%s_sup.erl' % d.value)
f = open(f_name, 'wb')
unicode_string = substitute(SUPERVISOR_TEMPLATE, params)
f.write(unicode_string.encode('utf-8'))
f.close()
print 'Create file %s' % f_name
def get_records(module_directive, folder):
"""
Return list of :class: `Struct` objects from module_directive.
"""
records = []
for r in module_directive.childs:
if r.directive == 'struct':
s = Struct(r.value, doc=get_directive_option(r, 'doc'))
for param in get_params(r):
s.add_param(param)
records.append(s)
return records
def get_module_functions(module_directive):
"""
Get list of :class: `Func` objects, from module_directive.
"""
functions = []
for f in module_directive.childs:
if f.directive == 'func':
fun = Func(f.value, doc=get_directive_option(f, 'doc'), \
store_optional_params_in_list=True)
for fp in get_params(f):
fun.add_param(fp)
fun.returns = get_return_param(f)
functions.append(fun)
return functions
def generate(directives, filename):
"""
Function, that generates code in Erlang
"""
print 'Erlang generator [START]'
options = find_options(directives, ERLANG_MODULE_OPTIONS)
if not can_generate(options):
raise ErlangOptionsException("Erlang can't generate template for file %s " % filename)
e_dir = options.get_option('out_dir')
if not options.get_option('make_lang_dir').strip().lower() in ['false', 'nil']:
e_dir = os.path.join(e_dir, 'erlang')
e_dir = os.path.abspath(e_dir)
if not os.path.exists(e_dir):
os.makedirs(e_dir)
mod_name = ''
for d in directives:
if d.directive == 'module':
if not d.value:
raise EmptyModuleNameException('module name can\'t be empty [%s]' % filename)
functions = get_module_functions(d)
# create hrl file, if needed
records = get_records(d, e_dir)
# read module and write it down
if get_directive_option(d, 'genserver'): # make genserver
generate_genserver(d, functions=functions, records=records, folder=e_dir)
elif get_directive_option(d, 'fsmserver'): # make fsm server
pass
else: # just make erlang module
pass
print 'Erlang generator [DONE]'