How to use _get_function_name method in Slash

Best Python code snippet using slash

phmap_lldb.py

Source:phmap_lldb.py

...8import re9_MAX_CHILDREN = 25010_MAX_CTRL_INDEX = 1_00011_MODULE_NAME = os.path.basename(__file__).split(".")[0]12def _get_function_name(instance=None):13    """Return the name of the calling function"""14    class_name = f"{type(instance).__name__}." if instance else ""15    return class_name + sys._getframe(1).f_code.co_name16class flat_map_slot_type:17    CLASS_PATTERN = "^phmap::priv::raw_hash_set<phmap::priv::FlatHashMapPolicy.*>::slot_type$"18    HAS_SUMMARY = True19    IS_SYNTHETIC_PROVIDER = False20    @staticmethod21    def summary(valobj, _):22        try:23            valobj = valobj.GetChildMemberWithName('value')24            first = valobj.GetChildMemberWithName('first').GetSummary()25            if not first: first = "{...}"26            second = valobj.GetChildMemberWithName('second').GetSummary()27            if not second: second = "{...}"28            return f"{{{first}, {second}}}"29        except BaseException as ex:30            print(f"{_get_function_name()} -> {ex}")31        return ""32class node_map_slot_type:33    CLASS_PATTERN = r"phmap::priv::raw_hash_set<phmap::priv::NodeHashMapPolicy.*>::slot_type$"34    HAS_SUMMARY = True35    IS_SYNTHETIC_PROVIDER = False36    @staticmethod37    def summary(valobj, _):38        try:39            valobj = valobj.Dereference()40            first = valobj.GetChildMemberWithName('first').GetSummary()41            if not first: first = "{...}"42            second = valobj.GetChildMemberWithName('second').GetSummary()43            if not second: second = "{...}"44            return f"{{{first}, {second}}}"45        except BaseException as ex:46            print(f"{_get_function_name()} -> {ex}")47        return "{?}"48class node_set_slot_type:49    CLASS_PATTERN = r"phmap::priv::raw_hash_set<phmap::priv::NodeHashSetPolicy.*>::slot_type$"50    HAS_SUMMARY = True51    IS_SYNTHETIC_PROVIDER = False52    @staticmethod53    def summary(valobj, _):54        try:55            summary = valobj.Dereference().GetSummary()56            if not summary: summary = "{...}"57            return summary58        except BaseException as ex:59            print(f"{_get_function_name()} -> {ex}")60        return "{?}"61class flat_hash_map_or_set:62    CLASS_PATTERN = "^phmap::flat_hash_(map|set)<.*>$"63    HAS_SUMMARY = True64    IS_SYNTHETIC_PROVIDER = True65    @staticmethod66    def summary(valobj, _):67        try:68            valobj = valobj.GetNonSyntheticValue()69            size = valobj.GetChildMemberWithName('size_').GetValueAsUnsigned()70            capacity = valobj.GetChildMemberWithName('capacity_').GetValueAsUnsigned()71            return f"size = {size} (capacity = {capacity})"72        except BaseException as ex:73            print(f"{_get_function_name()} -> {ex}")74        return "{?}"75    def __init__(self, valobj, _):76        self.valobj = valobj77        self.slots_ = self.slot_type = self.ctrl_ = None78        self.size_ = self.capacity_ = self.slot_size = 079    def num_children(self):80        return min(self.size_, _MAX_CHILDREN)81    def has_children(self):82        return True83    def update(self):84        try:85            self.size_ = self.valobj.GetChildMemberWithName('size_').GetValueAsUnsigned()86            self.capacity_ = self.valobj.GetChildMemberWithName('capacity_').GetValueAsUnsigned()87            self.slots_ = self.valobj.GetChildMemberWithName("slots_")88            self.slot_type = self.slots_.GetType().GetPointeeType()89            self.slot_size = self.slot_type.GetByteSize()90            self.ctrl_ = self.valobj.GetChildMemberWithName("ctrl_")91        except BaseException as ex:92            print(f"{_get_function_name(self)} -> {ex}")93    def get_child_index(self, name):94        try:95            if name in ('size_', 'capacity_'):96                return -197            return int(name.lstrip('[').rstrip(']'))98        except:99            return -1100    def get_child_at_index(self, index):101        try:102            if index < 0:103                return None104            if index >= self.size_ or index >= _MAX_CHILDREN:105                return None106            real_idx = -1107            for idx in range(min(self.capacity_ + 3, _MAX_CTRL_INDEX)):108                ctrl = self.ctrl_.GetChildAtIndex(idx).GetValueAsSigned()109                if ctrl >= -1:110                    real_idx += 1111                    if real_idx == index:112                        return self.slots_.CreateChildAtOffset(f'[{index}]', idx * self.slot_size, self.slot_type)113        except BaseException as ex:114            print(f"{_get_function_name(self)} -> {ex}")115        return None116class parallel_flat_or_node_map_or_set:117    CLASS_PATTERN = "^phmap::parallel_(flat|node)_hash_(map|set)<.*>$"118    HAS_SUMMARY = True119    IS_SYNTHETIC_PROVIDER = True120    REGEX_EXTRACT_ARRAY_SIZE = re.compile(r"std::array\s*<.*,\s*(\d+)\s*>")121    @staticmethod122    def _get_size_and_capacity(valobj):123        try:124            valobj = valobj.GetNonSyntheticValue()125            sets = valobj.GetChildMemberWithName('sets_')126            # sets is an std::array<T, SIZE>.127            # It's not possible to get the size of the array with templates parameters128            # "set.GetType().GetTemplateArgumentType(1)" returns an "unsigned long" type but not the value129            # so we must extract it with a regex130            m = parallel_flat_or_node_map_or_set.REGEX_EXTRACT_ARRAY_SIZE.match(sets.GetType().GetName())131            n_buckets = int(m.group(1))132            # this is dependent on the implementation of the standard library133            buckets = sets.GetChildMemberWithName('_M_elems')134            size = capacity = 0135            for idx in range(n_buckets):136                bucket = buckets.GetChildAtIndex(idx).GetChildMemberWithName('set_')137                size += bucket.GetChildMemberWithName('size_').GetValueAsUnsigned()138                capacity += bucket.GetChildMemberWithName('capacity_').GetValueAsUnsigned()139            return size, capacity, n_buckets140        except:141            return '?', '?', 0142    @staticmethod143    def summary(valobj, _):144        size, capacity, _ = parallel_flat_or_node_map_or_set._get_size_and_capacity(valobj)145        return f"size = {size} (capacity = {capacity})"146    def __init__(self, valobj, _):147        self.valobj = valobj148        self.buckets = self.slot_type = None149        self.size_ = self.capacity_ = self.n_buckets_ = self.slot_type = self.ctrl_size = 0150    def num_children(self):151        return min(self.size_, _MAX_CHILDREN)152    def has_children(self):153        return True154    def update(self):155        try:156            self.size_, self.capacity_, self.n_buckets_ = self._get_size_and_capacity(self.valobj)157            self.buckets = self.valobj.GetChildMemberWithName('sets_').GetChildMemberWithName('_M_elems')158            bucket0 = self.buckets.GetChildAtIndex(0).GetChildMemberWithName('set_')159            self.slot_type = bucket0.GetChildMemberWithName('slots_').GetType().GetPointeeType()160            self.slot_size = self.slot_type.GetByteSize()161        except BaseException as ex:162            print(f"{_get_function_name(self)} -> {ex}")163    def get_child_index(self, name):164        try:165            if name in ('sets_'):166                return -1167            return int(name.lstrip('[').rstrip(']'))168        except:169            return -1170    def get_child_at_index(self, index):171        try:172            if index < 0:173                return None174            if index >= self.size_ or index >= _MAX_CHILDREN:175                return None176            real_idx = -1177            total_idx = 0178            for idx in range(self.n_buckets_):179                bucket = self.buckets.GetChildAtIndex(idx).GetChildMemberWithName('set_')180                size = bucket.GetChildMemberWithName("size_").GetValueAsUnsigned()181                if size:182                    slots_ = bucket.GetChildMemberWithName("slots_")183                    ctrl_ = bucket.GetChildMemberWithName("ctrl_")184                    for jdx in range(size):185                        ctrl = ctrl_.GetChildAtIndex(jdx).GetValueAsSigned()186                        if ctrl >= -1:187                            real_idx += 1188                            if real_idx == index:189                                return slots_.CreateChildAtOffset(f'[{index}]', jdx * self.slot_size, self.slot_type)190                    total_idx += size191                    if total_idx > _MAX_CHILDREN:192                        return None193        except BaseException as ex:194            print(f"{_get_function_name(self)} -> {ex}")195        return None196def __lldb_init_module(debugger, internal_dict):197    for sp in (198            flat_map_slot_type,199            node_map_slot_type,200            node_set_slot_type,201            flat_hash_map_or_set,202            parallel_flat_or_node_map_or_set,203    ):204        if sp.HAS_SUMMARY:205            debugger.HandleCommand(206                f'type summary add --regex "{sp.CLASS_PATTERN}" --python-function {_MODULE_NAME}.{sp.__name__}.summary '207                f'--category phmap --expand')208        if sp.IS_SYNTHETIC_PROVIDER:...

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