generate_objc_backend_dispatcher_header.py [plain text]
import logging
import string
import re
from string import Template
from cpp_generator import CppGenerator
from generator import Generator
from models import Frameworks
from objc_generator import ObjCGenerator
from objc_generator_templates import ObjCGeneratorTemplates as ObjCTemplates
log = logging.getLogger('global')
class ObjCBackendDispatcherHeaderGenerator(Generator):
def __init__(self, model, input_filepath):
Generator.__init__(self, model, input_filepath)
def output_filename(self):
return '%sBackendDispatchers.h' % ObjCGenerator.OBJC_PREFIX
def domains_to_generate(self):
return filter(ObjCGenerator.should_generate_domain_command_handler_filter(self.model()), Generator.domains_to_generate(self))
def generate_output(self):
headers = [
'<JavaScriptCore/InspectorAlternateBackendDispatchers.h>',
'<wtf/RetainPtr.h>',
]
header_args = {
'headerGuardString': re.sub('\W+', '_', self.output_filename()),
'includes': '\n'.join(['#include ' + header for header in headers]),
'forwardDeclarations': self._generate_objc_forward_declarations(),
}
domains = self.domains_to_generate()
sections = []
sections.append(self.generate_license())
sections.append(Template(ObjCTemplates.BackendDispatcherHeaderPrelude).substitute(None, **header_args))
sections.extend(map(self._generate_objc_handler_declarations_for_domain, domains))
sections.append(Template(ObjCTemplates.BackendDispatcherHeaderPostlude).substitute(None, **header_args))
return '\n\n'.join(sections)
def _generate_objc_forward_declarations(self):
lines = []
for domain in self.domains_to_generate():
if domain.commands:
lines.append('@protocol %s%sDomainHandler;' % (ObjCGenerator.OBJC_PREFIX, domain.domain_name))
return '\n'.join(lines)
def _generate_objc_handler_declarations_for_domain(self, domain):
if not domain.commands:
return ''
command_declarations = []
for command in domain.commands:
command_declarations.append(self._generate_objc_handler_declaration_for_command(command))
handler_args = {
'domainName': domain.domain_name,
'commandDeclarations': '\n'.join(command_declarations),
'objcPrefix': ObjCGenerator.OBJC_PREFIX,
}
return self.wrap_with_guard_for_domain(domain, Template(ObjCTemplates.BackendDispatcherHeaderDomainHandlerObjCDeclaration).substitute(None, **handler_args))
def _generate_objc_handler_declaration_for_command(self, command):
lines = []
parameters = ['long requestId']
for _parameter in command.call_parameters:
parameters.append('%s in_%s' % (CppGenerator.cpp_type_for_unchecked_formal_in_parameter(_parameter), _parameter.parameter_name))
command_args = {
'commandName': command.command_name,
'parameters': ', '.join(parameters),
}
lines.append(' virtual void %(commandName)s(%(parameters)s) override;' % command_args)
return '\n'.join(lines)