def offsetof(self, struct_name, name):
return c_ast.FuncCall(
c_ast.ID('offsetof'),
c_ast.ExprList([
c_ast.Typename(
None, [],
c_ast.TypeDecl(None, [], c_ast.Struct(struct_name, None))),
c_ast.ID(name)
]))
def test_generate_struct_union_enum_exception(self):
generator = c_generator.CGenerator()
self.assertRaises(
AssertionError,
generator._generate_struct_union_enum,
n=c_ast.Struct(
name='TestStruct',
decls=[],
),
name='',
)
def global_log(ast_tree):
global_log = c_ast.Decl(
'global_log', [], [], [],
c_ast.TypeDecl('global_log', [], c_ast.Struct('Global_Log', None)),
None, None)
temp_ls1 = []
temp_ls1.append(global_log)
temp_ls2 = []
temp_ls2 = copy.deepcopy(ast_tree.ext)
global_log = c_ast.FileAST(temp_ls1 + temp_ls2)
return global_log
def inline_struct_annotated(self, a, decl):
"""
Import all the decls from decl's type, replacing decl in the current AnnotatedStruct
"""
name = decl.type.type.name
try:
struct = next((e.type for e in self.ext
if hasattr(e, 'type') and hasattr(e.type, 'name')
and e.type.name == name))
except Exception as ex:
raise ExpansionError(a, decl, ex.message)
struct = c_ast.Struct(self.struct.name, struct.decls, struct.coord)
return AnnotatedStruct(self.annotations, struct, self.json_annotations,
self.ext)
def generate_sai_api_tbl_h(apis):
def createDecl(api):
apitype = 'sai_' + api + '_api_t'
apivar = 'sai_' + api + '_api_tbl'
return c_ast.Decl(
apivar, list(), list(), list(),
c_ast.PtrDecl(
list(),
c_ast.TypeDecl(apivar, list(), c_ast.IdentifierType([
apitype,
]))), None, None)
tdecls = [createDecl(api) for api in apis]
tstruct = c_ast.Struct('_sai_api_tbl_t', tdecls)
tdec = c_ast.TypeDecl('sai_api_tbl_t', list(), tstruct)
tdef = c_ast.Typedef('sai_api_tbl_t', list(), ['typedef'], tdec)
externdec = c_ast.Decl(
'sai_api_tbl', list(), ['extern'], list(),
c_ast.TypeDecl('sai_api_tbl', list(),
c_ast.IdentifierType(['sai_api_tbl_t'])), None, None)
api_t = c_ast.FileAST([tdef, externdec])
generator = c_generator.CGenerator()
sai_api_tbl_h_str = r'''#include "sai.h"
#ifndef SAI_API_TBL
#define SAI_API_TBL
'''
sai_api_tbl_h_str += generator.visit(api_t)
sai_api_tbl_h_str += r'''
extern sai_status_t sai_api_tbl_init();
#endif
'''
# print(api_t)
print(sai_api_tbl_h_str)
with open('adaptor/gen-inc/sai_api_tbl.h', 'w') as f:
f.write(sai_api_tbl_h_str)
def expand(self, ast, filename):
"""
Expand a pycparser ast with extra structures/data etc
"""
idx = 0
self._extract_ast_info(ast)
struct_object_property_decl = c_ast.Struct('jstruct_object_property',
None)
def ppdirective(a, n, ext):
id = ' '.join(
(a.directive, a.content)) if a.content else a.directive
ext.insert(c_ast.ID('#{0}'.format(id)))
return False
def annotate_struct(a, n, ext):
if not isinstance(n.type, c_ast.Struct):
raise ExpansionError(
a, n, 'Cannot expand annotation @{0} on {1}'.format(
a.name, n.__class__.__name__))
json_annotations = {}
if a.name == 'json' and a.content != '':
json_annotations = json.loads(a.content)
json_annotations['@root'] = a
if not isinstance(json_annotations, dict):
raise ExpansionError(
a, n,
'Expected @json content to be empty or a JSON object.\nGot {0}'
.format(a.content))
name = n.type.name
struct = n.type
annotated_struct = AnnotatedStruct(self, struct, json_annotations,
ext)
properties = c_ast.Decl(
self.PROPERTIES_NAME(name),
[], #quals
[], #storage
[], #funcspec
# type
c_ast.ArrayDecl(
c_ast.TypeDecl(self.PROPERTIES_NAME(name), [],
struct_object_property_decl),
None, # dim
[] # dim_quals
),
annotated_struct.init_list, # init
None # bitsize
)
struct.decls = annotated_struct.decls
if not ext.seek(n):
raise ExpansionError(a, n, "Couldn't seek to node")
ext.insert(properties)
return True
process = {'#': ppdirective, 'json': annotate_struct}
ext = NodeList(ast.ext)
for n in ast.ext:
done = False
if n.coord.file != filename:
continue
annotations = self.get(n)
for a in annotations:
if not done and a.name in process:
done = process[a.name](a, n, ext)
if done:
try:
a_name = a.name
a = next(annotations)
raise ExpansionError(
a, n, 'Unexpected annotation after ' + a_name)
except Exception as e:
pass
else:
raise ExpansionError(a, n, 'Unexpected annotation')
ast.ext = ext
