def _GenerateCreateCallbackArguments(self, function_scope, callback):
"""Generate all functions to create Value parameters for a callback.
E.g for function "Bar", generate Bar::Results::Create
E.g for event "Baz", generate Baz::Create
function_scope: the function scope path, e.g. Foo::Bar for the function
Foo::Bar::Baz(). May be None if there is no function scope.
callback: the Function object we are creating callback arguments for.
"""
c = Code()
params = callback.params
c.Concat(self._GeneratePropertyFunctions(function_scope, params))
(c.Sblock('scoped_ptr<base::ListValue> %(function_scope)s'
'Create(%(declaration_list)s) {')
.Append('scoped_ptr<base::ListValue> create_results('
'new base::ListValue());')
)
declaration_list = []
for param in params:
declaration_list.append(cpp_util.GetParameterDeclaration(
param, self._type_helper.GetCppType(param.type_)))
c.Append('create_results->Append(%s);' %
self._CreateValueFromType(param.type_, param.unix_name))
c.Append('return create_results.Pass();')
c.Eblock('}')
c.Substitute({
'function_scope': ('%s::' % function_scope) if function_scope else '',
'declaration_list': ', '.join(declaration_list),
'param_names': ', '.join(param.unix_name for param in params)
})
return c
def _GenerateCreateEnumValue(self, cpp_namespace, prop):
"""Generates CreateEnumValue() that returns the |StringValue|
representation of an enum.
"""
c = Code()
c.Append('// static')
c.Sblock(
'scoped_ptr<Value> %(cpp_namespace)s::CreateEnumValue(%(arg)s) {')
c.Sblock('switch (%s) {' % prop.unix_name)
if prop.optional:
(c.Append('case %s: {' %
self._cpp_type_generator.GetEnumNoneValue(prop)).Append(
' return scoped_ptr<Value>();').Append('}'))
for enum_value in prop.enum_values:
(c.Append(
'case %s: {' %
self._cpp_type_generator.GetEnumValue(prop, enum_value)
).Append(
' return scoped_ptr<Value>(Value::CreateStringValue("%s"));' %
enum_value).Append('}'))
(c.Append('default: {').Append(' return scoped_ptr<Value>();').Append(
'}'))
c.Eblock('}')
c.Eblock('}')
c.Substitute({
'cpp_namespace':
cpp_namespace,
'arg':
cpp_util.GetParameterDeclaration(
prop, self._cpp_type_generator.GetType(prop))
})
return c
def _GenerateFunctionResult(self, function):
"""Generates functions for passing a function's result back.
"""
c = Code()
c.Sblock('namespace Result {')
params = function.callback.params
if not params:
c.Append('Value* Create();')
else:
c.Concat(self._GeneratePropertyStructures(params))
# If there is a single parameter, this is straightforward. However, if
# the callback parameter is of 'choices', this generates a Create method
# for each choice. This works because only 1 choice can be returned at a
# time.
for param in self._cpp_type_generator.GetExpandedChoicesInParams(params):
if param.description:
c.Comment(param.description)
if param.type_ == PropertyType.ANY:
c.Comment("Value* Result::Create(Value*) not generated "
"because it's redundant.")
continue
c.Append('Value* Create(const %s);' % cpp_util.GetParameterDeclaration(
param, self._cpp_type_generator.GetType(param)))
c.Eblock('};')
return c
def _GenerateCreateCallbackArguments(self, function):
"""Generates functions for passing parameters to a callback.
"""
c = Code()
params = function.params
c.Cblock(self._GenerateTypes((p.type_ for p in params), is_toplevel=True))
declaration_list = []
for param in params:
if param.description:
c.Comment(param.description)
declaration_list.append(cpp_util.GetParameterDeclaration(
param, self._type_helper.GetCppType(param.type_)))
c.Append('scoped_ptr<base::ListValue> Create(%s);' %
', '.join(declaration_list))
return c
def _GenerateFunctionResultCreate(self, cpp_namespace, function):
"""Generate function to create a Result given the return value.
E.g for function "Bar", generate Bar::Result::Create
"""
c = Code()
params = function.callback.params
if not params:
(c.Append('Value* %s::Result::Create() {' % cpp_namespace).Append(
' return Value::CreateNullValue();').Append('}'))
else:
expanded_params = self._cpp_type_generator.GetExpandedChoicesInParams(
params)
c.Concat(
self._GeneratePropertyFunctions(cpp_namespace + '::Result',
expanded_params))
# If there is a single parameter, this is straightforward. However, if
# the callback parameter is of 'choices', this generates a Create method
# for each choice. This works because only 1 choice can be returned at a
# time.
for param in expanded_params:
if param.type_ == PropertyType.ANY:
# Generation of Value* Create(Value*) is redundant.
continue
# We treat this argument as 'required' to avoid wrapping it in a
# scoped_ptr if it's optional.
param_copy = param.Copy()
param_copy.optional = False
c.Sblock(
'Value* %(cpp_namespace)s::Result::Create(const %(arg)s) {'
)
c.Append('return %s;' % self._CreateValueFromProperty(
param_copy, param_copy.unix_name))
c.Eblock('}')
c.Substitute({
'cpp_namespace':
cpp_namespace,
'arg':
cpp_util.GetParameterDeclaration(
param_copy,
self._cpp_type_generator.GetType(param_copy))
})
return c
def _GenerateAsyncResponseArguments(self, params):
"""Generates a function to create the arguments to pass as results to a
function callback, promise or event details.
"""
c = Code()
c.Cblock(
self._GenerateTypes((p.type_ for p in params), is_toplevel=True))
declaration_list = []
for param in params:
if param.description:
c.Comment(param.description)
declaration_list.append(
cpp_util.GetParameterDeclaration(
param, self._type_helper.GetCppType(param.type_)))
c.Append('std::unique_ptr<base::ListValue> Create(%s);' %
', '.join(declaration_list))
return c
def _GenerateCreateCallbackArguments(self, function, generate_to_json=False):
"""Generates functions for passing paramaters to a callback.
"""
c = Code()
params = function.params
c.Concat(self._GeneratePropertyStructures(params))
param_lists = self._cpp_type_generator.GetAllPossibleParameterLists(params)
for param_list in param_lists:
declaration_list = []
for param in param_list:
if param.description:
c.Comment(param.description)
declaration_list.append('const %s' % cpp_util.GetParameterDeclaration(
param, self._cpp_type_generator.GetCompiledType(param)))
c.Append('scoped_ptr<base::ListValue> Create(%s);' %
', '.join(declaration_list))
if generate_to_json:
c.Append('std::string ToJson(%s);' % ', '.join(declaration_list))
return c
def _GenerateCreateCallbackArguments(self, function_scope, callback):
"""Generate all functions to create Value parameters for a callback.
E.g for function "Bar", generate Bar::Results::Create
E.g for event "Baz", generate Baz::Create
function_scope: the function scope path, e.g. Foo::Bar for the function
Foo::Bar::Baz().
callback: the Function object we are creating callback arguments for.
"""
c = Code()
params = callback.params
expanded_params = self._cpp_type_generator.ExpandParams(params)
c.Concat(self._GeneratePropertyFunctions(function_scope, expanded_params))
param_lists = self._cpp_type_generator.GetAllPossibleParameterLists(params)
for param_list in param_lists:
(c.Sblock('scoped_ptr<base::ListValue> %(function_scope)s::'
'Create(%(declaration_list)s) {')
.Append('scoped_ptr<base::ListValue> create_results('
'new base::ListValue());')
)
declaration_list = []
for param in param_list:
# We treat this argument as 'required' to avoid wrapping it in a
# scoped_ptr if it's optional.
param_copy = param.Copy()
param_copy.optional = False
c.Append('create_results->Append(%s);' %
self._CreateValueFromProperty(param_copy, param_copy.unix_name))
declaration_list.append("const %s" % cpp_util.GetParameterDeclaration(
param_copy, self._cpp_type_generator.GetType(param_copy)))
c.Append('return create_results.Pass();')
c.Eblock('}')
c.Substitute({
'function_scope': function_scope,
'declaration_list': ', '.join(declaration_list)
})
return c
def _GenerateCreateEnumValue(self, cpp_namespace, prop):
"""Generates CreateEnumValue() that returns the base::StringValue
representation of an enum.
"""
c = Code()
(c.Append('// static').Sblock(
'scoped_ptr<base::Value> %(cpp_namespace)s::CreateEnumValue('
'%(arg)s) {').Append(
'std::string enum_temp = ToString(%s);' %
prop.unix_name).Append('if (enum_temp.empty())').Append(
' return scoped_ptr<base::Value>();').Append(
'return scoped_ptr<base::Value>('
'base::Value::CreateStringValue(enum_temp));').Eblock(
'}').Substitute({
'cpp_namespace':
cpp_namespace,
'arg':
cpp_util.GetParameterDeclaration(
prop,
self._cpp_type_generator.GetType(prop))
}))
return c
def _GenerateCreateCallbackArguments(self,
function_scope,
callback,
generate_to_json=False):
"""Generate all functions to create Value parameters for a callback.
E.g for function "Bar", generate Bar::Results::Create
E.g for event "Baz", generate Baz::Create
function_scope: the function scope path, e.g. Foo::Bar for the function
Foo::Bar::Baz().
callback: the Function object we are creating callback arguments for.
generate_to_json: Generate a ToJson method.
"""
c = Code()
params = callback.params
expanded_params = self._cpp_type_generator.ExpandParams(params)
c.Concat(
self._GeneratePropertyFunctions(function_scope, expanded_params))
param_lists = self._cpp_type_generator.GetAllPossibleParameterLists(
params)
for param_list in param_lists:
(c.Sblock('scoped_ptr<base::ListValue> %(function_scope)s::'
'Create(%(declaration_list)s) {').Append(
'scoped_ptr<base::ListValue> create_results('
'new base::ListValue());'))
declaration_list = []
for param in param_list:
# We treat this argument as 'required' to avoid wrapping it in a
# scoped_ptr if it's optional.
param_copy = param.Copy()
param_copy.optional = False
declaration_list.append(
"const %s" % cpp_util.GetParameterDeclaration(
param_copy,
self._cpp_type_generator.GetCompiledType(param_copy)))
param_name = param_copy.unix_name
if param_copy.type_ != param_copy.compiled_type:
param_name = 'temp_' + param_name
(c.Append('%s %s;' % (self._cpp_type_generator.GetType(
param_copy), param_name)).Append(
cpp_util.GenerateCompiledTypeToTypeConversion(
param_copy, param_copy.unix_name, param_name) +
';'))
c.Append('create_results->Append(%s);' %
self._CreateValueFromProperty(param_copy, param_name))
c.Append('return create_results.Pass();')
c.Eblock('}')
if generate_to_json:
c.Append()
(c.Sblock('std::string %(function_scope)s::'
'ToJson(%(declaration_list)s) {').Append(
'scoped_ptr<base::ListValue> create_results = '
'%(function_scope)s::Create(%(param_list)s);').
Append('std::string json;').Append(
'base::JSONWriter::Write(create_results.get(), &json);').
Append('return json;'))
c.Eblock('}')
c.Substitute({
'function_scope':
function_scope,
'declaration_list':
', '.join(declaration_list),
'param_list':
', '.join(param.unix_name for param in param_list)
})
return c