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import unittest
import tempfile
import os
import sys
import __builtin__
os.environ['GI_SCANNER_DISABLE_CACHE'] = '1'
path = os.getenv('UNINSTALLED_INTROSPECTION_SRCDIR', None)
assert path is not None
sys.path.insert(0, path)
# Not correct, but enough to get the tests going uninstalled
__builtin__.__dict__['DATADIR'] = path
from giscanner import ast
from giscanner.sourcescanner import SourceScanner
from giscanner.transformer import Transformer
from giscanner.message import MessageLogger, WARNING, ERROR, FATAL
def create_scanner_from_source_string(source):
ss = SourceScanner()
tmp_fd, tmp_name = tempfile.mkstemp(suffix='.h', text=True)
file = os.fdopen(tmp_fd, 'wt')
file.write(source)
file.close()
ss.parse_files([tmp_name])
return ss
def load_namespace_from_source_string(namespace, source):
ss = create_scanner_from_source_string(source)
xformer = Transformer(namespace)
xformer.parse(ss.get_symbols())
class TestStructTypedefs(unittest.TestCase):
def setUp(self):
# Hack to set logging singleton
self.namespace = ast.Namespace('Test', '1.0')
logger = MessageLogger.get(namespace=self.namespace)
logger.enable_warnings((WARNING, ERROR, FATAL))
def test_anonymous_typedef(self):
load_namespace_from_source_string(self.namespace, """
typedef struct {
int value;
} TestStruct;
""")
self.assertEqual(len(self.namespace.names), 1)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
def test_typedef_before(self):
load_namespace_from_source_string(self.namespace, """
typedef struct _TestStruct TestStruct;
struct _TestStruct {
int value;
};
""")
self.assertEqual(len(self.namespace.names), 1)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
@unittest.expectedFailure
def test_typedef_after(self):
load_namespace_from_source_string(self.namespace, """
struct _TestStruct {
int value;
};
typedef struct _TestStruct TestStruct;
""")
self.assertEqual(len(self.namespace.names), 1)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
@unittest.expectedFailure
def test_tag_and_typedef(self):
load_namespace_from_source_string(self.namespace, """
typedef struct _TestStruct {
int value;
} TestStruct;
""")
self.assertEqual(len(self.namespace.names), 1)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
def test_struct_tag_only(self):
load_namespace_from_source_string(self.namespace, """
struct TestStruct {
int value;
};
""")
self.assertEqual(len(self.namespace.names), 1)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
def test_struct_aliases(self):
load_namespace_from_source_string(self.namespace, """
typedef struct {
int value;
} TestStruct;
typedef TestStruct TestStructAlias1;
typedef TestStruct TestStructAlias2;
""")
self.assertEqual(len(self.namespace.names), 3)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
alias = self.namespace.get('StructAlias1')
self.assertTrue(isinstance(alias, ast.Alias))
self.assertEqual(alias.target, node)
self.assertEqual(alias.ctype, 'TestStructAlias1')
alias = self.namespace.get('StructAlias2')
self.assertTrue(isinstance(alias, ast.Alias))
self.assertEqual(alias.target, node)
self.assertEqual(alias.ctype, 'TestStructAlias2')
def test_struct_tag_aliases_before(self):
# This test is similar to how GObject and GInitiallyUnowned are setup
load_namespace_from_source_string(self.namespace, """
typedef struct _TestStruct TestStruct;
typedef struct _TestStruct TestStructAlias;
struct _TestStruct {
int value;
};
""")
self.assertEqual(len(self.namespace.names), 2)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
self.assertEqual(node.ctype, 'TestStruct')
shared = self.namespace.get('StructAlias')
self.assertTrue(shared is not None)
self.assertTrue(isinstance(shared, ast.Record))
self.assertTrue(shared.disguised)
self.assertEqual(len(shared.fields), 0)
self.assertEqual(shared.ctype, 'TestStructAlias')
@unittest.expectedFailure
def test_struct_tag_aliases_after(self):
load_namespace_from_source_string(self.namespace, """
struct _TestStruct {
int value;
};
typedef struct _TestStruct TestStruct;
typedef struct _TestStruct TestStructAlias;
""")
self.assertEqual(len(self.namespace.names), 2)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(len(node.fields), 1)
self.assertEqual(node.ctype, 'TestStruct')
shared = self.namespace.get('StructAlias')
self.assertTrue(shared is not None)
self.assertTrue(isinstance(shared, ast.Record))
self.assertTrue(shared.disguised)
self.assertEqual(len(shared.fields), 0)
self.assertEqual(shared.ctype, 'TestStructAlias')
def test_struct_pointer(self):
load_namespace_from_source_string(self.namespace, """
typedef struct {
int value;
} TestStruct;
typedef TestStruct* TestStructPtr;
""")
self.assertEqual(len(self.namespace.names), 2)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertEqual(len(node.fields), 1)
self.assertEqual(node.ctype, 'TestStruct')
ptr = self.namespace.get('StructPtr')
self.assertTrue(ptr is not None)
self.assertTrue(isinstance(ptr, ast.Alias))
self.assertEqual(ptr.ctype, 'TestStructPtr')
# This loses type information about the struct which seems broken.
self.assertEqual(ptr.target, ast.TYPE_ANY)
def test_struct_tag_pointer(self):
load_namespace_from_source_string(self.namespace, """
typedef struct _TestStruct TestStruct;
struct _TestStruct{
int value;
};
typedef struct _TestStruct* TestStructPtr;
""")
self.assertEqual(len(self.namespace.names), 2)
node = self.namespace.get('Struct')
self.assertTrue(node is not None)
self.assertTrue(isinstance(node, ast.Record))
self.assertFalse(node.disguised)
self.assertEqual(node.ctype, 'TestStruct')
self.assertEqual(len(node.fields), 1)
ptr = self.namespace.get('StructPtr')
self.assertTrue(ptr is not None)
# This currently gives a disguised Record instead of an Alias
self.assertTrue(isinstance(ptr, ast.Record))
self.assertTrue(ptr.disguised)
self.assertEqual(len(ptr.fields), 0)
self.assertEqual(ptr.ctype, 'TestStructPtr')
if __name__ == '__main__':
unittest.main()
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