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from __future__ import annotations
import copy
from typing import Any
from typing import Iterator
from tomlkit._compat import decode
from tomlkit._utils import merge_dicts
from tomlkit.exceptions import KeyAlreadyPresent
from tomlkit.exceptions import NonExistentKey
from tomlkit.exceptions import TOMLKitError
from tomlkit.items import AoT
from tomlkit.items import Comment
from tomlkit.items import Item
from tomlkit.items import Key
from tomlkit.items import Null
from tomlkit.items import SingleKey
from tomlkit.items import Table
from tomlkit.items import Trivia
from tomlkit.items import Whitespace
from tomlkit.items import _CustomDict
from tomlkit.items import item as _item
_NOT_SET = object()
class Container(_CustomDict):
"""
A container for items within a TOMLDocument.
This class implements the `dict` interface with copy/deepcopy protocol.
"""
def __init__(self, parsed: bool = False) -> None:
self._map: dict[SingleKey, int | tuple[int, ...]] = {}
self._body: list[tuple[Key | None, Item]] = []
self._parsed = parsed
self._table_keys = []
@property
def body(self) -> list[tuple[Key | None, Item]]:
return self._body
def unwrap(self) -> dict[str, Any]:
unwrapped = {}
for k, v in self.items():
if k is None:
continue
if isinstance(k, Key):
k = k.key
if hasattr(v, "unwrap"):
v = v.unwrap()
if k in unwrapped:
merge_dicts(unwrapped[k], v)
else:
unwrapped[k] = v
return unwrapped
@property
def value(self) -> dict[str, Any]:
d = {}
for k, v in self._body:
if k is None:
continue
k = k.key
v = v.value
if isinstance(v, Container):
v = v.value
if k in d:
merge_dicts(d[k], v)
else:
d[k] = v
return d
def parsing(self, parsing: bool) -> None:
self._parsed = parsing
for _, v in self._body:
if isinstance(v, Table):
v.value.parsing(parsing)
elif isinstance(v, AoT):
for t in v.body:
t.value.parsing(parsing)
def add(self, key: Key | Item | str, item: Item | None = None) -> Container:
"""
Adds an item to the current Container.
:Example:
>>> # add a key-value pair
>>> doc.add('key', 'value')
>>> # add a comment or whitespace or newline
>>> doc.add(comment('# comment'))
"""
if item is None:
if not isinstance(key, (Comment, Whitespace)):
raise ValueError(
"Non comment/whitespace items must have an associated key"
)
key, item = None, key
return self.append(key, item)
def _handle_dotted_key(self, key: Key, value: Item) -> None:
if isinstance(value, (Table, AoT)):
raise TOMLKitError("Can't add a table to a dotted key")
name, *mid, last = key
name._dotted = True
table = current = Table(Container(True), Trivia(), False, is_super_table=True)
for _name in mid:
_name._dotted = True
new_table = Table(Container(True), Trivia(), False, is_super_table=True)
current.append(_name, new_table)
current = new_table
last.sep = key.sep
current.append(last, value)
self.append(name, table)
return
def _get_last_index_before_table(self) -> int:
last_index = -1
for i, (k, v) in enumerate(self._body):
if isinstance(v, Null):
continue # Null elements are inserted after deletion
if isinstance(v, Whitespace) and not v.is_fixed():
continue
if isinstance(v, (Table, AoT)) and not k.is_dotted():
break
last_index = i
return last_index + 1
def append(self, key: Key | str | None, item: Item) -> Container:
"""Similar to :meth:`add` but both key and value must be given."""
if not isinstance(key, Key) and key is not None:
key = SingleKey(key)
if not isinstance(item, Item):
item = _item(item)
if key is not None and key.is_multi():
self._handle_dotted_key(key, item)
return self
if isinstance(item, (AoT, Table)) and item.name is None:
item.name = key.key
prev = self._previous_item()
prev_ws = isinstance(prev, Whitespace) or ends_with_whitespace(prev)
if isinstance(item, Table):
if not self._parsed:
item.invalidate_display_name()
if (
self._body
and not (self._parsed or item.trivia.indent or prev_ws)
and not key.is_dotted()
):
item.trivia.indent = "\n"
if isinstance(item, AoT) and self._body and not self._parsed:
item.invalidate_display_name()
if item and not ("\n" in item[0].trivia.indent or prev_ws):
item[0].trivia.indent = "\n" + item[0].trivia.indent
if key is not None and key in self:
current_idx = self._map[key]
if isinstance(current_idx, tuple):
current_body_element = self._body[current_idx[-1]]
else:
current_body_element = self._body[current_idx]
current = current_body_element[1]
if isinstance(item, Table):
if not isinstance(current, (Table, AoT)):
raise KeyAlreadyPresent(key)
if item.is_aot_element():
# New AoT element found later on
# Adding it to the current AoT
if not isinstance(current, AoT):
current = AoT([current, item], parsed=self._parsed)
self._replace(key, key, current)
else:
current.append(item)
return self
elif current.is_aot():
if not item.is_aot_element():
# Tried to define a table after an AoT with the same name.
raise KeyAlreadyPresent(key)
current.append(item)
return self
elif current.is_super_table():
if item.is_super_table():
# We need to merge both super tables
if (
self._table_keys[-1] != current_body_element[0]
or key.is_dotted()
or current_body_element[0].is_dotted()
):
if key.is_dotted() and not self._parsed:
idx = self._get_last_index_before_table()
else:
idx = len(self._body)
if idx < len(self._body):
self._insert_at(idx, key, item)
else:
self._raw_append(key, item)
# Building a temporary proxy to check for errors
OutOfOrderTableProxy(self, self._map[key])
return self
# Create a new element to replace the old one
current = copy.deepcopy(current)
for k, v in item.value.body:
current.append(k, v)
self._body[
current_idx[-1]
if isinstance(current_idx, tuple)
else current_idx
] = (current_body_element[0], current)
return self
elif current_body_element[0].is_dotted():
raise TOMLKitError("Redefinition of an existing table")
elif not item.is_super_table():
raise KeyAlreadyPresent(key)
elif isinstance(item, AoT):
if not isinstance(current, AoT):
# Tried to define an AoT after a table with the same name.
raise KeyAlreadyPresent(key)
for table in item.body:
current.append(table)
return self
else:
raise KeyAlreadyPresent(key)
is_table = isinstance(item, (Table, AoT))
if (
key is not None
and self._body
and not self._parsed
and (not is_table or key.is_dotted())
):
# If there is already at least one table in the current container
# and the given item is not a table, we need to find the last
# item that is not a table and insert after it
# If no such item exists, insert at the top of the table
last_index = self._get_last_index_before_table()
if last_index < len(self._body):
return self._insert_at(last_index, key, item)
else:
previous_item = self._body[-1][1]
if not (
isinstance(previous_item, Whitespace)
or ends_with_whitespace(previous_item)
or "\n" in previous_item.trivia.trail
):
previous_item.trivia.trail += "\n"
self._raw_append(key, item)
return self
def _raw_append(self, key: Key, item: Item) -> None:
if key in self._map:
current_idx = self._map[key]
if not isinstance(current_idx, tuple):
current_idx = (current_idx,)
current = self._body[current_idx[-1]][1]
if key is not None and not isinstance(current, Table):
raise KeyAlreadyPresent(key)
self._map[key] = current_idx + (len(self._body),)
else:
self._map[key] = len(self._body)
self._body.append((key, item))
if item.is_table():
self._table_keys.append(key)
if key is not None:
dict.__setitem__(self, key.key, item.value)
return self
def _remove_at(self, idx: int) -> None:
key = self._body[idx][0]
index = self._map.get(key)
if index is None:
raise NonExistentKey(key)
self._body[idx] = (None, Null())
if isinstance(index, tuple):
index = list(index)
index.remove(idx)
if len(index) == 1:
index = index.pop()
else:
index = tuple(index)
self._map[key] = index
else:
dict.__delitem__(self, key.key)
self._map.pop(key)
def remove(self, key: Key | str) -> Container:
"""Remove a key from the container."""
if not isinstance(key, Key):
key = SingleKey(key)
idx = self._map.pop(key, None)
if idx is None:
raise NonExistentKey(key)
if isinstance(idx, tuple):
for i in idx:
self._body[i] = (None, Null())
else:
self._body[idx] = (None, Null())
dict.__delitem__(self, key.key)
return self
def _insert_after(
self, key: Key | str, other_key: Key | str, item: Any
) -> Container:
if key is None:
raise ValueError("Key cannot be null in insert_after()")
if key not in self:
raise NonExistentKey(key)
if not isinstance(key, Key):
key = SingleKey(key)
if not isinstance(other_key, Key):
other_key = SingleKey(other_key)
item = _item(item)
idx = self._map[key]
# Insert after the max index if there are many.
if isinstance(idx, tuple):
idx = max(idx)
current_item = self._body[idx][1]
if "\n" not in current_item.trivia.trail:
current_item.trivia.trail += "\n"
# Increment indices after the current index
for k, v in self._map.items():
if isinstance(v, tuple):
new_indices = []
for v_ in v:
if v_ > idx:
v_ = v_ + 1
new_indices.append(v_)
self._map[k] = tuple(new_indices)
elif v > idx:
self._map[k] = v + 1
self._map[other_key] = idx + 1
self._body.insert(idx + 1, (other_key, item))
if key is not None:
dict.__setitem__(self, other_key.key, item.value)
return self
def _insert_at(self, idx: int, key: Key | str, item: Any) -> Container:
if idx > len(self._body) - 1:
raise ValueError(f"Unable to insert at position {idx}")
if not isinstance(key, Key):
key = SingleKey(key)
item = _item(item)
if idx > 0:
previous_item = self._body[idx - 1][1]
if not (
isinstance(previous_item, Whitespace)
or ends_with_whitespace(previous_item)
or isinstance(item, (AoT, Table))
or "\n" in previous_item.trivia.trail
):
previous_item.trivia.trail += "\n"
# Increment indices after the current index
for k, v in self._map.items():
if isinstance(v, tuple):
new_indices = []
for v_ in v:
if v_ >= idx:
v_ = v_ + 1
new_indices.append(v_)
self._map[k] = tuple(new_indices)
elif v >= idx:
self._map[k] = v + 1
if key in self._map:
current_idx = self._map[key]
if not isinstance(current_idx, tuple):
current_idx = (current_idx,)
self._map[key] = current_idx + (idx,)
else:
self._map[key] = idx
self._body.insert(idx, (key, item))
dict.__setitem__(self, key.key, item.value)
return self
def item(self, key: Key | str) -> Item:
"""Get an item for the given key."""
if not isinstance(key, Key):
key = SingleKey(key)
idx = self._map.get(key)
if idx is None:
raise NonExistentKey(key)
if isinstance(idx, tuple):
# The item we are getting is an out of order table
# so we need a proxy to retrieve the proper objects
# from the parent container
return OutOfOrderTableProxy(self, idx)
return self._body[idx][1]
def last_item(self) -> Item | None:
"""Get the last item."""
if self._body:
return self._body[-1][1]
def as_string(self) -> str:
"""Render as TOML string."""
s = ""
for k, v in self._body:
if k is not None:
if isinstance(v, Table):
s += self._render_table(k, v)
elif isinstance(v, AoT):
s += self._render_aot(k, v)
else:
s += self._render_simple_item(k, v)
else:
s += self._render_simple_item(k, v)
return s
def _render_table(self, key: Key, table: Table, prefix: str | None = None) -> str:
cur = ""
if table.display_name is not None:
_key = table.display_name
else:
_key = key.as_string()
if prefix is not None:
_key = prefix + "." + _key
if not table.is_super_table() or (
any(
not isinstance(v, (Table, AoT, Whitespace, Null))
for _, v in table.value.body
)
and not key.is_dotted()
):
open_, close = "[", "]"
if table.is_aot_element():
open_, close = "[[", "]]"
newline_in_table_trivia = (
"\n" if "\n" not in table.trivia.trail and len(table.value) > 0 else ""
)
cur += (
f"{table.trivia.indent}"
f"{open_}"
f"{decode(_key)}"
f"{close}"
f"{table.trivia.comment_ws}"
f"{decode(table.trivia.comment)}"
f"{table.trivia.trail}"
f"{newline_in_table_trivia}"
)
elif table.trivia.indent == "\n":
cur += table.trivia.indent
for k, v in table.value.body:
if isinstance(v, Table):
if v.is_super_table():
if k.is_dotted() and not key.is_dotted():
# Dotted key inside table
cur += self._render_table(k, v)
else:
cur += self._render_table(k, v, prefix=_key)
else:
cur += self._render_table(k, v, prefix=_key)
elif isinstance(v, AoT):
cur += self._render_aot(k, v, prefix=_key)
else:
cur += self._render_simple_item(
k, v, prefix=_key if key.is_dotted() else None
)
return cur
def _render_aot(self, key, aot, prefix=None):
_key = key.as_string()
if prefix is not None:
_key = prefix + "." + _key
cur = ""
_key = decode(_key)
for table in aot.body:
cur += self._render_aot_table(table, prefix=_key)
return cur
def _render_aot_table(self, table: Table, prefix: str | None = None) -> str:
cur = ""
_key = prefix or ""
open_, close = "[[", "]]"
cur += (
f"{table.trivia.indent}"
f"{open_}"
f"{decode(_key)}"
f"{close}"
f"{table.trivia.comment_ws}"
f"{decode(table.trivia.comment)}"
f"{table.trivia.trail}"
)
for k, v in table.value.body:
if isinstance(v, Table):
if v.is_super_table():
if k.is_dotted():
# Dotted key inside table
cur += self._render_table(k, v)
else:
cur += self._render_table(k, v, prefix=_key)
else:
cur += self._render_table(k, v, prefix=_key)
elif isinstance(v, AoT):
cur += self._render_aot(k, v, prefix=_key)
else:
cur += self._render_simple_item(k, v)
return cur
def _render_simple_item(self, key, item, prefix=None):
if key is None:
return item.as_string()
_key = key.as_string()
if prefix is not None:
_key = prefix + "." + _key
return (
f"{item.trivia.indent}"
f"{decode(_key)}"
f"{key.sep}"
f"{decode(item.as_string())}"
f"{item.trivia.comment_ws}"
f"{decode(item.trivia.comment)}"
f"{item.trivia.trail}"
)
def __len__(self) -> int:
return dict.__len__(self)
def __iter__(self) -> Iterator[str]:
return iter(dict.keys(self))
# Dictionary methods
def __getitem__(self, key: Key | str) -> Item | Container:
if not isinstance(key, Key):
key = SingleKey(key)
idx = self._map.get(key)
if idx is None:
raise NonExistentKey(key)
if isinstance(idx, tuple):
# The item we are getting is an out of order table
# so we need a proxy to retrieve the proper objects
# from the parent container
return OutOfOrderTableProxy(self, idx)
item = self._body[idx][1]
if item.is_boolean():
return item.value
return item
def __setitem__(self, key: Key | str, value: Any) -> None:
if key is not None and key in self:
old_key = next(filter(lambda k: k == key, self._map))
self._replace(old_key, key, value)
else:
self.append(key, value)
def __delitem__(self, key: Key | str) -> None:
self.remove(key)
def setdefault(self, key: Key | str, default: Any) -> Any:
super().setdefault(key, default=default)
return self[key]
def _replace(self, key: Key | str, new_key: Key | str, value: Item) -> None:
if not isinstance(key, Key):
key = SingleKey(key)
idx = self._map.get(key)
if idx is None:
raise NonExistentKey(key)
self._replace_at(idx, new_key, value)
def _replace_at(
self, idx: int | tuple[int], new_key: Key | str, value: Item
) -> None:
value = _item(value)
if isinstance(idx, tuple):
for i in idx[1:]:
self._body[i] = (None, Null())
idx = idx[0]
k, v = self._body[idx]
if not isinstance(new_key, Key):
if (
isinstance(value, (AoT, Table)) != isinstance(v, (AoT, Table))
or new_key != k.key
):
new_key = SingleKey(new_key)
else: # Inherit the sep of the old key
new_key = k
del self._map[k]
self._map[new_key] = idx
if new_key != k:
dict.__delitem__(self, k)
if isinstance(value, (AoT, Table)) != isinstance(v, (AoT, Table)):
# new tables should appear after all non-table values
self.remove(k)
for i in range(idx, len(self._body)):
if isinstance(self._body[i][1], (AoT, Table)):
self._insert_at(i, new_key, value)
idx = i
break
else:
idx = -1
self.append(new_key, value)
else:
# Copying trivia
if not isinstance(value, (Whitespace, AoT)):
value.trivia.indent = v.trivia.indent
value.trivia.comment_ws = value.trivia.comment_ws or v.trivia.comment_ws
value.trivia.comment = value.trivia.comment or v.trivia.comment
value.trivia.trail = v.trivia.trail
self._body[idx] = (new_key, value)
if hasattr(value, "invalidate_display_name"):
value.invalidate_display_name() # type: ignore[attr-defined]
if isinstance(value, Table):
# Insert a cosmetic new line for tables if:
# - it does not have it yet OR is not followed by one
# - it is not the last item
last, _ = self._previous_item_with_index()
idx = last if idx < 0 else idx
has_ws = ends_with_whitespace(value)
next_ws = idx < last and isinstance(self._body[idx + 1][1], Whitespace)
if idx < last and not (next_ws or has_ws):
value.append(None, Whitespace("\n"))
dict.__setitem__(self, new_key.key, value.value)
def __str__(self) -> str:
return str(self.value)
def __repr__(self) -> str:
return repr(self.value)
def __eq__(self, other: dict) -> bool:
if not isinstance(other, dict):
return NotImplemented
return self.value == other
def _getstate(self, protocol):
return (self._parsed,)
def __reduce__(self):
return self.__reduce_ex__(2)
def __reduce_ex__(self, protocol):
return (
self.__class__,
self._getstate(protocol),
(self._map, self._body, self._parsed, self._table_keys),
)
def __setstate__(self, state):
self._map = state[0]
self._body = state[1]
self._parsed = state[2]
self._table_keys = state[3]
for key, item in self._body:
if key is not None:
dict.__setitem__(self, key.key, item.value)
def copy(self) -> Container:
return copy.copy(self)
def __copy__(self) -> Container:
c = self.__class__(self._parsed)
for k, v in dict.items(self):
dict.__setitem__(c, k, v)
c._body += self.body
c._map.update(self._map)
return c
def _previous_item_with_index(
self, idx: int | None = None, ignore=(Null,)
) -> tuple[int, Item] | None:
"""Find the immediate previous item before index ``idx``"""
if idx is None or idx > len(self._body):
idx = len(self._body)
for i in range(idx - 1, -1, -1):
v = self._body[i][-1]
if not isinstance(v, ignore):
return i, v
return None
def _previous_item(self, idx: int | None = None, ignore=(Null,)) -> Item | None:
"""Find the immediate previous item before index ``idx``.
If ``idx`` is not given, the last item is returned.
"""
prev = self._previous_item_with_index(idx, ignore)
return prev[-1] if prev else None
class OutOfOrderTableProxy(_CustomDict):
def __init__(self, container: Container, indices: tuple[int]) -> None:
self._container = container
self._internal_container = Container(True)
self._tables = []
self._tables_map = {}
for i in indices:
_, item = self._container._body[i]
if isinstance(item, Table):
self._tables.append(item)
table_idx = len(self._tables) - 1
for k, v in item.value.body:
self._internal_container.append(k, v)
self._tables_map[k] = table_idx
if k is not None:
dict.__setitem__(self, k.key, v)
def unwrap(self) -> str:
return self._internal_container.unwrap()
@property
def value(self):
return self._internal_container.value
def __getitem__(self, key: Key | str) -> Any:
if key not in self._internal_container:
raise NonExistentKey(key)
return self._internal_container[key]
def __setitem__(self, key: Key | str, item: Any) -> None:
if key in self._tables_map:
table = self._tables[self._tables_map[key]]
table[key] = item
elif self._tables:
table = self._tables[0]
table[key] = item
else:
self._container[key] = item
self._internal_container[key] = item
if key is not None:
dict.__setitem__(self, key, item)
def _remove_table(self, table: Table) -> None:
"""Remove table from the parent container"""
self._tables.remove(table)
for idx, item in enumerate(self._container._body):
if item[1] is table:
self._container._remove_at(idx)
break
def __delitem__(self, key: Key | str) -> None:
if key in self._tables_map:
table = self._tables[self._tables_map[key]]
del table[key]
if not table and len(self._tables) > 1:
self._remove_table(table)
del self._tables_map[key]
else:
raise NonExistentKey(key)
del self._internal_container[key]
if key is not None:
dict.__delitem__(self, key)
def __iter__(self) -> Iterator[str]:
return iter(dict.keys(self))
def __len__(self) -> int:
return dict.__len__(self)
def setdefault(self, key: Key | str, default: Any) -> Any:
super().setdefault(key, default=default)
return self[key]
def ends_with_whitespace(it: Any) -> bool:
"""Returns ``True`` if the given item ``it`` is a ``Table`` or ``AoT`` object
ending with a ``Whitespace``.
"""
return (
isinstance(it, Table) and isinstance(it.value._previous_item(), Whitespace)
) or (isinstance(it, AoT) and len(it) > 0 and isinstance(it[-1], Whitespace))