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Get a few diff tests passing.

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Dave Halter
2017-01-20 20:46:30 +01:00
parent 73b2287fb4
commit 21cd10cefd
1 changed files with 50 additions and 43 deletions
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93
jedi/parser/diff.py
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@@ -8,6 +8,7 @@ fragments.
import copy
import re
import difflib
from collections import namedtuple
from jedi._compatibility import use_metaclass
from jedi import settings
@@ -117,19 +118,15 @@ class DiffParser(object):
def __init__(self, parser):
self._parser = parser
self._grammar = self._parser._grammar
self._old_module = parser.get_root_node()
self._module = parser.get_root_node()
def _reset(self):
self._copy_count = 0
self._parser_count = 0
self._copied_ranges = []
self._old_children = self._old_module.children
self._new_used_names = {}
self._last_prefix = ''
self._nodes_stack = _NodesStack(self._old_module)
self._nodes_stack = _NodesStack(self._module)
def update(self, lines_new):
'''
@@ -144,8 +141,6 @@ class DiffParser(object):
Insert:
- Parse from parsed_until_line + 1 to min(j2 + 1), hopefully not
much more.
Always:
- Set parsed_until_line
Returns the new module node.
'''
@@ -189,13 +184,12 @@ class DiffParser(object):
self._cleanup()
if self._added_newline:
self._parser.remove_last_newline()
self._nodes_stack.parsed_until_line -= 1
self._parser.source = ''.join(lines_new)
assert self._old_module.end_pos[0] == line_length
assert self._module.end_pos[0] == line_length
return self._old_module
return self._module
def _copy_from_old_parser(self, line_offset, until_line_old, until_line_new):
copied_nodes = [None]
@@ -235,7 +229,7 @@ class DiffParser(object):
break
def _get_old_line_stmt(self, old_line):
leaf = self._old_module.get_leaf_for_position((old_line, 0), include_prefixes=True)
leaf = self._module.get_leaf_for_position((old_line, 0), include_prefixes=True)
if leaf.type == 'newline':
leaf = leaf.get_next_leaf()
@@ -365,7 +359,7 @@ class DiffParser(object):
copied_line_numbers.update(range(l1, l2 + 1))
new_used_names = self._new_used_names
for key, names in self._old_module.used_names.items():
for key, names in self._module.used_names.items():
for name in names:
if name.start_pos[0] in copied_line_numbers:
new_used_names.setdefault(key, []).append(name)
@@ -420,14 +414,16 @@ class DiffParser(object):
class _NodesStackNode(object):
ChildrenGroup = namedtuple('ChildrenGroup', 'children line_offset')
def __init__(self, tree_node, parent=None):
self.tree_node = tree_node
self._children_groups = []
self.children_groups = []
self.parent = parent
def close(self):
children = []
for children_part, line_offset in self._children_groups:
for children_part, line_offset in self.children_groups:
_update_positions(children_part, line_offset)
children += children_part
self.tree_node.children = children
@@ -436,11 +432,32 @@ class _NodesStackNode(object):
node.parent = self.tree_node
def add(self, children, line_offset=0):
self._children_groups.append((children, line_offset))
group = self.ChildrenGroup(children, line_offset)
self.children_groups.append(group)
def update_last_children_group(self, new_children):
self._children_groups[-1] = (new_children, self._children_groups[-1][1])
group = self.ChildrenGroup(new_children, self.children_groups[-1].line_offset)
self.children_groups[-1] = group
def get_last_line(self):
if not self.children_groups:
assert not self.parent
return 0
last_leaf = self.children_groups[-1].children[-1].last_leaf()
line = last_leaf.end_pos[0]
# Calculate the line offsets
element = self
while element is not None:
line += element.children_groups[-1].line_offset
element = element.parent
# Newlines end on the next line, which means that they would cover
# the next line. That line is not fully parsed at this point.
if last_leaf.type == 'newline':
line -= 1
return line
class _NodesStack(object):
@@ -450,12 +467,16 @@ class _NodesStack(object):
# Top of stack
self._tos = self._base_node = _NodesStackNode(module)
self._module = module
self._last_prefix = ''
self.prefix = ''
self.parsed_until_line = 0
def is_empty(self):
return not self._base_node.children
@property
def parsed_until_line(self):
return self._tos.get_last_line() + self.prefix.count('\n')
def _get_insertion_node(self, indentation_node):
indentation = indentation_node.start_pos[1]
@@ -480,7 +501,7 @@ class _NodesStack(object):
node = node.parent
def add_parsed_nodes(self, tree_nodes):
tree_nodes = self._cleanup_nodes(tree_nodes)
tree_nodes = self._remove_endmarker(tree_nodes)
if not tree_nodes:
return
@@ -491,18 +512,14 @@ class _NodesStack(object):
node.add(tree_nodes)
self._update_tos(tree_nodes[-1])
def _cleanup_nodes(self, tree_nodes, line_offset=0):
def _remove_endmarker(self, tree_nodes, line_offset=0):
"""
Helps cleaning up the tree nodes that get inserted:
1. Sets parsed_until_line
2. Removes the endmarker
Helps cleaning up the tree nodes that get inserted.
"""
last_leaf = tree_nodes[-1].last_leaf()
is_endmarker = last_leaf.type == self.endmarker_type
self._last_prefix = ''
if is_endmarker:
self.parsed_until_line = last_leaf.start_pos[0]
try:
separation = last_leaf.prefix.rindex('\n')
except ValueError:
@@ -514,19 +531,8 @@ class _NodesStack(object):
last_leaf.prefix, self._last_prefix = \
last_leaf.prefix[:separation + 1], last_leaf.prefix[separation + 1:]
if _last_leaf_is_newline(last_leaf):
self.parsed_until_line -= 1
else:
if last_leaf.type == 'newline':
# Newlines end on the next line, which means that they would cover
# the next line. That line is not fully parsed at this point.
self.parsed_until_line = last_leaf.start_pos[0]
else:
self.parsed_until_line = last_leaf.end_pos[0]
self.parsed_until_line += line_offset
print([t.get_code() for t in tree_nodes], is_endmarker,
repr(last_leaf.prefix))
debug.dbg('set parsed_until %s', self.parsed_until_line)
first_leaf = tree_nodes[0].first_leaf()
#before_node = self._get_before_insertion_node()
@@ -548,13 +554,13 @@ class _NodesStack(object):
"""
tos = self._get_insertion_node(tree_nodes[0])
new_nodes, self._tos = self._xyz(tos, tree_nodes, until_line, line_offset)
new_nodes, self._tos = self._copy_nodes(tos, tree_nodes, until_line, line_offset)
if new_nodes:
new_nodes = self._cleanup_nodes(new_nodes, line_offset)
self._tos.update_last_children_group(new_nodes)
new_nodes = self._remove_endmarker(new_nodes, line_offset)
tos.update_last_children_group(new_nodes)
return new_nodes
def _xyz(self, tos, tree_nodes, until_line, line_offset=0):
def _copy_nodes(self, tos, tree_nodes, until_line, line_offset=0):
new_nodes = []
new_tos = tos
for tree_node in tree_nodes:
@@ -571,7 +577,7 @@ class _NodesStack(object):
# Don't need to pass until_line here, it's already done by the
# parent.
suite_tos = _NodesStackNode(suite)
suite_nodes, recursive_tos = self._xyz(suite_tos, suite.children, until_line)
suite_nodes, recursive_tos = self._copy_nodes(suite_tos, suite.children, until_line)
if len(suite_nodes) < 2:
# A suite only with newline is not valid.
@@ -579,9 +585,10 @@ class _NodesStack(object):
suite_tos.parent = new_tos
new_tos = recursive_tos
else:
new_nodes.append(tree_node)
new_nodes.append(tree_node)
print('x', new_nodes)
if new_nodes and (new_nodes[-1].type in ('error_leaf', 'error_node') or
_is_flow_node(new_nodes[-1])):
# Error leafs/nodes don't have a defined start/end. Error