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Merge branch 'pep484' into linter

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This commit is contained in:
Dave Halter
2015-12-20 23:19:10 +01:00
parent a2905ae078 c15551ccc1
commit 8201fdc5af
28 changed files with 541 additions and 207 deletions
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1
AUTHORS.txt
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@@ -35,5 +35,6 @@ Ian Lee (@IanLee1521) <IanLee1521@gmail.com>
Farkhad Khatamov (@hatamov) <comsgn@gmail.com>
Kevin Kelley (@kelleyk) <kelleyk@kelleyk.net>
Sid Shanker (@squidarth) <sid.p.shanker@gmail.com>
Reinoud Elhorst (@reinhrst)
Note: (@user) means a github user name.

9
jedi/api/__init__.py
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@@ -322,13 +322,8 @@ class Script(object):
@memoize_default()
def _get_under_cursor_stmt(self, cursor_txt, start_pos=None):
tokenizer = source_tokens(cursor_txt)
r = Parser(self._grammar, cursor_txt, tokenizer=tokenizer)
try:
# Take the last statement available that is not an endmarker.
# And because it's a simple_stmt, we need to get the first child.
stmt = r.module.children[-2].children[0]
except (AttributeError, IndexError):
stmt = Parser(self._grammar, cursor_txt, 'eval_input').get_parsed_node()
if stmt is None:
return None
user_stmt = self._parser.user_stmt()

2
jedi/evaluate/__init__.py
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@@ -305,6 +305,8 @@ class Evaluator(object):
types = set(chain.from_iterable(self.find_types(typ, next_name)
for typ in types))
types = types
elif element.type == 'eval_input':
types = self._eval_element_not_cached(element.children[0])
else:
types = precedence.calculate_children(self, element.children)
debug.dbg('eval_element result %s', types)

10
jedi/evaluate/compiled/fake.py
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@@ -8,7 +8,7 @@ import os
import inspect
from jedi._compatibility import is_py3, builtins, unicode
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from jedi.parser import tree as pt
from jedi.evaluate.helpers import FakeName
@@ -31,7 +31,7 @@ def _load_faked_module(module):
modules[module_name] = None
return
grammar = load_grammar('grammar3.4')
module = Parser(grammar, unicode(source), module_name).module
module = ParserWithRecovery(grammar, unicode(source), module_name).module
modules[module_name] = module
if module_name == 'builtins' and not is_py3:
@@ -68,7 +68,11 @@ def get_module(obj):
# Happens for example in `(_ for _ in []).send.__module__`.
return builtins
else:
return __import__(imp_plz)
try:
return __import__(imp_plz)
except ImportError:
# __module__ can be something arbitrary that doesn't exist.
return builtins
def _faked(module, obj, name):

4
jedi/evaluate/docstrings.py
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@@ -20,7 +20,7 @@ from itertools import chain
from textwrap import dedent
from jedi.evaluate.cache import memoize_default
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from jedi.common import indent_block
from jedi.evaluate.iterable import Array, FakeSequence, AlreadyEvaluated
@@ -130,7 +130,7 @@ def _evaluate_for_statement_string(evaluator, string, module):
# Take the default grammar here, if we load the Python 2.7 grammar here, it
# will be impossible to use `...` (Ellipsis) as a token. Docstring types
# don't need to conform with the current grammar.
p = Parser(load_grammar(), code % indent_block(string))
p = ParserWithRecovery(load_grammar(), code % indent_block(string))
try:
pseudo_cls = p.module.subscopes[0]
# First pick suite, then simple_stmt (-2 for DEDENT) and then the node,

12
jedi/evaluate/finder.py
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@@ -23,6 +23,7 @@ from jedi.evaluate import representation as er
from jedi.evaluate import dynamic
from jedi.evaluate import compiled
from jedi.evaluate import docstrings
from jedi.evaluate import pep0484
from jedi.evaluate import iterable
from jedi.evaluate import imports
from jedi.evaluate import analysis
@@ -386,10 +387,11 @@ def _eval_param(evaluator, param, scope):
and func.instance.is_generated and str(func.name) == '__init__':
param = func.var.params[param.position_nr]
# Add docstring knowledge.
# Add pep0484 and docstring knowledge.
pep0484_hints = pep0484.follow_param(evaluator, param)
doc_params = docstrings.follow_param(evaluator, param)
if doc_params:
return doc_params
if pep0484_hints or doc_params:
return list(set(pep0484_hints) | set(doc_params))
if isinstance(param, ExecutedParam):
return res_new | param.eval(evaluator)
@@ -485,8 +487,8 @@ def global_names_dict_generator(evaluator, scope, position):
the current scope is function:
>>> from jedi._compatibility import u, no_unicode_pprint
>>> from jedi.parser import Parser, load_grammar
>>> parser = Parser(load_grammar(), u('''
>>> from jedi.parser import ParserWithRecovery, load_grammar
>>> parser = ParserWithRecovery(load_grammar(), u('''
... x = ['a', 'b', 'c']
... def func():
... y = None

59
jedi/evaluate/pep0484.py Normal file
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@@ -0,0 +1,59 @@
"""
PEP 0484 ( https://www.python.org/dev/peps/pep-0484/ ) describes type hints
through function annotations. There is a strong suggestion in this document
that only the type of type hinting defined in PEP0484 should be allowed
as annotations in future python versions.
The (initial / probably incomplete) implementation todo list for pep-0484:
v Function parameter annotations with builtin/custom type classes
v Function returntype annotations with builtin/custom type classes
v Function parameter annotations with strings (forward reference)
v Function return type annotations with strings (forward reference)
x Local variable type hints
v Assigned types: `Url = str\ndef get(url:Url) -> str:`
x Type hints in `with` statements
x Stub files support
x support `@no_type_check` and `@no_type_check_decorator`
x support for type hint comments `# type: (int, str) -> int`. See comment from
Guido https://github.com/davidhalter/jedi/issues/662
"""
from itertools import chain
from jedi.parser import Parser, load_grammar
from jedi.evaluate.cache import memoize_default
from jedi.evaluate.compiled import CompiledObject
from jedi import debug
def _evaluate_for_annotation(evaluator, annotation):
if annotation is not None:
definitions = set()
for definition in evaluator.eval_element(annotation):
if (isinstance(definition, CompiledObject) and
isinstance(definition.obj, str)):
p = Parser(load_grammar(), definition.obj, start='eval_input')
element = p.get_parsed_node()
if element is None:
debug.warning('Annotation not parsed: %s' % definition.obj)
else:
element.parent = annotation.parent
definitions |= evaluator.eval_element(element)
else:
definitions.add(definition)
return list(chain.from_iterable(
evaluator.execute(d) for d in definitions))
else:
return []
@memoize_default(None, evaluator_is_first_arg=True)
def follow_param(evaluator, param):
annotation = param.annotation()
return _evaluate_for_annotation(evaluator, annotation)
@memoize_default(None, evaluator_is_first_arg=True)
def find_return_types(evaluator, func):
annotation = func.py__annotations__().get("return", None)
return _evaluate_for_annotation(evaluator, annotation)

16
jedi/evaluate/representation.py
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@@ -49,6 +49,7 @@ from jedi.evaluate import compiled
from jedi.evaluate import recursion
from jedi.evaluate import iterable
from jedi.evaluate import docstrings
from jedi.evaluate import pep0484
from jedi.evaluate import helpers
from jedi.evaluate import param
from jedi.evaluate import flow_analysis
@@ -583,6 +584,20 @@ class Function(use_metaclass(CachedMetaClass, Wrapper)):
else:
return FunctionExecution(self._evaluator, self, params).get_return_types()
@memoize_default()
def py__annotations__(self):
parser_func = self.base
return_annotation = parser_func.annotation()
if return_annotation:
dct = {'return': return_annotation}
else:
dct = {}
for function_param in parser_func.params:
param_annotation = function_param.annotation()
if param_annotation is not None:
dct[function_param.name.value] = param_annotation
return dct
def py__class__(self):
return compiled.get_special_object(self._evaluator, 'FUNCTION_CLASS')
@@ -642,6 +657,7 @@ class FunctionExecution(Executed):
else:
returns = self.returns
types = set(docstrings.find_return_types(self._evaluator, func))
types |= set(pep0484.find_return_types(self._evaluator, func))
for r in returns:
check = flow_analysis.break_check(self._evaluator, self, r)

4
jedi/evaluate/stdlib.py
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@@ -14,7 +14,7 @@ from jedi.common import unite
from jedi.evaluate import compiled
from jedi.evaluate import representation as er
from jedi.evaluate import iterable
from jedi.parser import Parser
from jedi.parser import ParserWithRecovery
from jedi.parser import tree
from jedi import debug
from jedi.evaluate import precedence
@@ -243,7 +243,7 @@ def collections_namedtuple(evaluator, obj, arguments):
)
# Parse source
generated_class = Parser(evaluator.grammar, unicode(source)).module.subscopes[0]
generated_class = ParserWithRecovery(evaluator.grammar, unicode(source)).module.subscopes[0]
return set([er.Class(evaluator, generated_class)])

4
jedi/evaluate/sys_path.py
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@@ -5,7 +5,7 @@ from jedi.evaluate.site import addsitedir
from jedi._compatibility import exec_function, unicode
from jedi.parser import tree
from jedi.parser import Parser
from jedi.parser import ParserWithRecovery
from jedi.evaluate.cache import memoize_default
from jedi import debug
from jedi import common
@@ -209,7 +209,7 @@ def _get_paths_from_buildout_script(evaluator, buildout_script):
debug.dbg('Error trying to read buildout_script: %s', buildout_script)
return
p = Parser(evaluator.grammar, source, buildout_script)
p = ParserWithRecovery(evaluator.grammar, source, buildout_script)
cache.save_parser(buildout_script, p)
return p.module

271
jedi/parser/__init__.py
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@@ -81,92 +81,89 @@ class ParserSyntaxError(object):
class Parser(object):
"""
This class is used to parse a Python file, it then divides them into a
class structure of different scopes.
AST_MAPPING = {
'expr_stmt': pt.ExprStmt,
'classdef': pt.Class,
'funcdef': pt.Function,
'file_input': pt.Module,
'import_name': pt.ImportName,
'import_from': pt.ImportFrom,
'break_stmt': pt.KeywordStatement,
'continue_stmt': pt.KeywordStatement,
'return_stmt': pt.ReturnStmt,
'raise_stmt': pt.KeywordStatement,
'yield_expr': pt.YieldExpr,
'del_stmt': pt.KeywordStatement,
'pass_stmt': pt.KeywordStatement,
'global_stmt': pt.GlobalStmt,
'nonlocal_stmt': pt.KeywordStatement,
'print_stmt': pt.KeywordStatement,
'assert_stmt': pt.AssertStmt,
'if_stmt': pt.IfStmt,
'with_stmt': pt.WithStmt,
'for_stmt': pt.ForStmt,
'while_stmt': pt.WhileStmt,
'try_stmt': pt.TryStmt,
'comp_for': pt.CompFor,
'decorator': pt.Decorator,
'lambdef': pt.Lambda,
'old_lambdef': pt.Lambda,
'lambdef_nocond': pt.Lambda,
}
:param grammar: The grammar object of pgen2. Loaded by load_grammar.
:param source: The codebase for the parser. Must be unicode.
:param module_path: The path of the module in the file system, may be None.
:type module_path: str
:param top_module: Use this module as a parent instead of `self.module`.
"""
def __init__(self, grammar, source, module_path=None, tokenizer=None):
self._ast_mapping = {
'expr_stmt': pt.ExprStmt,
'classdef': pt.Class,
'funcdef': pt.Function,
'file_input': pt.Module,
'import_name': pt.ImportName,
'import_from': pt.ImportFrom,
'break_stmt': pt.KeywordStatement,
'continue_stmt': pt.KeywordStatement,
'return_stmt': pt.ReturnStmt,
'raise_stmt': pt.KeywordStatement,
'yield_expr': pt.YieldExpr,
'del_stmt': pt.KeywordStatement,
'pass_stmt': pt.KeywordStatement,
'global_stmt': pt.GlobalStmt,
'nonlocal_stmt': pt.KeywordStatement,
'print_stmt': pt.KeywordStatement,
'assert_stmt': pt.AssertStmt,
'if_stmt': pt.IfStmt,
'with_stmt': pt.WithStmt,
'for_stmt': pt.ForStmt,
'while_stmt': pt.WhileStmt,
'try_stmt': pt.TryStmt,
'comp_for': pt.CompFor,
'decorator': pt.Decorator,
'lambdef': pt.Lambda,
'old_lambdef': pt.Lambda,
'lambdef_nocond': pt.Lambda,
}
class ParserError(Exception):
pass
self.syntax_errors = []
def __init__(self, grammar, source, start, tokenizer=None):
start_number = grammar.symbol2number[start]
self._global_names = []
self._omit_dedent_list = []
self._indent_counter = 0
self._last_failed_start_pos = (0, 0)
# TODO do print absolute import detection here.
#try:
# del python_grammar_no_print_statement.keywords["print"]
#except KeyError:
# pass # Doesn't exist in the Python 3 grammar.
#if self.options["print_function"]:
# python_grammar = pygram.python_grammar_no_print_statement
#else:
self._used_names = {}
self._scope_names_stack = [{}]
self._error_statement_stacks = []
added_newline = False
# The Python grammar needs a newline at the end of each statement.
if not source.endswith('\n'):
source += '\n'
added_newline = True
self._last_failed_start_pos = (0, 0)
self._global_names = []
# For the fast parser.
self.position_modifier = pt.PositionModifier()
p = PgenParser(grammar, self.convert_node, self.convert_leaf,
self.error_recovery)
tokenizer = tokenizer or tokenize.source_tokens(source)
self.module = p.parse(self._tokenize(tokenizer))
if self.module.type != 'file_input':
# If there's only one statement, we get back a non-module. That's
# not what we want, we want a module, so we add it here:
self.module = self.convert_node(grammar,
grammar.symbol2number['file_input'],
[self.module])
if added_newline:
self.remove_last_newline()
self.module.used_names = self._used_names
self.module.path = module_path
self.module.global_names = self._global_names
self.module.error_statement_stacks = self._error_statement_stacks
added_newline = False
# The Python grammar needs a newline at the end of each statement.
if not source.endswith('\n') and start == 'file_input':
source += '\n'
added_newline = True
p = PgenParser(grammar, self.convert_node, self.convert_leaf,
self.error_recovery, start_number)
if tokenizer is None:
tokenizer = tokenize.source_tokens(source)
try:
self._parsed = p.parse(self._tokenize(tokenizer))
except Parser.ParserError:
self._parsed = None
else:
if start == 'file_input' != self._parsed.type:
# If there's only one statement, we get back a non-module. That's
# not what we want, we want a module, so we add it here:
self._parsed = self.convert_node(grammar,
grammar.symbol2number['file_input'],
[self._parsed])
if added_newline:
self.remove_last_newline()
def get_parsed_node(self):
return self._parsed
def _tokenize(self, tokenizer):
for typ, value, start_pos, prefix in tokenizer:
if typ == ERRORTOKEN:
raise Parser.ParserError
elif typ == OP:
typ = token.opmap[value]
yield typ, value, prefix, start_pos
def error_recovery(self, *args, **kwargs):
raise Parser.ParserError
def convert_node(self, grammar, type, children):
"""
@@ -178,7 +175,7 @@ class Parser(object):
"""
symbol = grammar.number2symbol[type]
try:
new_node = self._ast_mapping[symbol](children)
new_node = Parser.AST_MAPPING[symbol](children)
except KeyError:
new_node = pt.Node(symbol, children)
@@ -231,6 +228,83 @@ class Parser(object):
else:
return pt.Operator(self.position_modifier, value, start_pos, prefix)
def remove_last_newline(self):
"""
In all of this we need to work with _start_pos, because if we worked
with start_pos, we would need to check the position_modifier as well
(which is accounted for in the start_pos property).
"""
endmarker = self._parsed.children[-1]
# The newline is either in the endmarker as a prefix or the previous
# leaf as a newline token.
if endmarker.prefix.endswith('\n'):
endmarker.prefix = endmarker.prefix[:-1]
last_line = re.sub('.*\n', '', endmarker.prefix)
endmarker._start_pos = endmarker._start_pos[0] - 1, len(last_line)
else:
try:
newline = endmarker.get_previous()
except IndexError:
return # This means that the parser is empty.
while True:
if newline.value == '':
# Must be a DEDENT, just continue.
try:
newline = newline.get_previous()
except IndexError:
# If there's a statement that fails to be parsed, there
# will be no previous leaf. So just ignore it.
break
elif newline.value != '\n':
# This may happen if error correction strikes and removes
# a whole statement including '\n'.
break
else:
newline.value = ''
if self._last_failed_start_pos > newline._start_pos:
# It may be the case that there was a syntax error in a
# function. In that case error correction removes the
# right newline. So we use the previously assigned
# _last_failed_start_pos variable to account for that.
endmarker._start_pos = self._last_failed_start_pos
else:
endmarker._start_pos = newline._start_pos
break
class ParserWithRecovery(Parser):
"""
This class is used to parse a Python file, it then divides them into a
class structure of different scopes.
:param grammar: The grammar object of pgen2. Loaded by load_grammar.
:param source: The codebase for the parser. Must be unicode.
:param module_path: The path of the module in the file system, may be None.
:type module_path: str
"""
def __init__(self, grammar, source, module_path=None, tokenizer=None):
self.syntax_errors = []
self._omit_dedent_list = []
self._indent_counter = 0
# TODO do print absolute import detection here.
#try:
# del python_grammar_no_print_statement.keywords["print"]
#except KeyError:
# pass # Doesn't exist in the Python 3 grammar.
#if self.options["print_function"]:
# python_grammar = pygram.python_grammar_no_print_statement
#else:
super(ParserWithRecovery, self).__init__(grammar, source, 'file_input', tokenizer)
self.module = self._parsed
self.module.used_names = self._used_names
self.module.path = module_path
self.module.global_names = self._global_names
self.module.error_statement_stacks = self._error_statement_stacks
def error_recovery(self, grammar, stack, typ, value, start_pos, prefix,
add_token_callback):
"""
@@ -349,46 +423,3 @@ class Parser(object):
def __repr__(self):
return "<%s: %s>" % (type(self).__name__, self.module)
def remove_last_newline(self):
"""
In all of this we need to work with _start_pos, because if we worked
with start_pos, we would need to check the position_modifier as well
(which is accounted for in the start_pos property).
"""
endmarker = self.module.children[-1]
# The newline is either in the endmarker as a prefix or the previous
# leaf as a newline token.
if endmarker.prefix.endswith('\n'):
endmarker.prefix = endmarker.prefix[:-1]
last_line = re.sub('.*\n', '', endmarker.prefix)
endmarker._start_pos = endmarker._start_pos[0] - 1, len(last_line)
else:
try:
newline = endmarker.get_previous()
except IndexError:
return # This means that the parser is empty.
while True:
if newline.value == '':
# Must be a DEDENT, just continue.
try:
newline = newline.get_previous()
except IndexError:
# If there's a statement that fails to be parsed, there
# will be no previous leaf. So just ignore it.
break
elif newline.value != '\n':
# This may happen if error correction strikes and removes
# a whole statement including '\n'.
break
else:
newline.value = ''
if self._last_failed_start_pos > newline._start_pos:
# It may be the case that there was a syntax error in a
# function. In that case error correction removes the
# right newline. So we use the previously assigned
# _last_failed_start_pos variable to account for that.
endmarker._start_pos = self._last_failed_start_pos
else:
endmarker._start_pos = newline._start_pos
break

13
jedi/parser/fast.py
View File

@@ -8,7 +8,7 @@ from itertools import chain
from jedi._compatibility import use_metaclass
from jedi import settings
from jedi.parser import Parser
from jedi.parser import ParserWithRecovery
from jedi.parser import tree
from jedi import cache
from jedi import debug
@@ -52,8 +52,9 @@ class FastModule(tree.Module):
return "<fast.%s: %s@%s-%s>" % (type(self).__name__, self.name,
self.start_pos[0], self.end_pos[0])
# To avoid issues with with the `parser.Parser`, we need setters that do
# nothing, because if pickle comes along and sets those values.
# To avoid issues with with the `parser.ParserWithRecovery`, we need
# setters that do nothing, because if pickle comes along and sets those
# values.
@global_names.setter
def global_names(self, value):
pass
@@ -99,10 +100,10 @@ class CachedFastParser(type):
""" This is a metaclass for caching `FastParser`. """
def __call__(self, grammar, source, module_path=None):
if not settings.fast_parser:
return Parser(grammar, source, module_path)
return ParserWithRecovery(grammar, source, module_path)
pi = cache.parser_cache.get(module_path, None)
if pi is None or isinstance(pi.parser, Parser):
if pi is None or isinstance(pi.parser, ParserWithRecovery):
p = super(CachedFastParser, self).__call__(grammar, source, module_path)
else:
p = pi.parser # pi is a `cache.ParserCacheItem`
@@ -432,7 +433,7 @@ class FastParser(use_metaclass(CachedFastParser)):
else:
tokenizer = FastTokenizer(parser_code)
self.number_parsers_used += 1
p = Parser(self._grammar, parser_code, self.module_path, tokenizer=tokenizer)
p = ParserWithRecovery(self._grammar, parser_code, self.module_path, tokenizer=tokenizer)
end = line_offset + p.module.end_pos[0]
used_lines = self._lines[line_offset:end - 1]

4
jedi/parser/pgen2/parse.py
View File

@@ -60,7 +60,7 @@ class PgenParser(object):
"""
def __init__(self, grammar, convert_node, convert_leaf, error_recovery):
def __init__(self, grammar, convert_node, convert_leaf, error_recovery, start):
"""Constructor.
The grammar argument is a grammar.Grammar instance; see the
@@ -90,8 +90,6 @@ class PgenParser(object):
self.convert_node = convert_node
self.convert_leaf = convert_leaf
# Prepare for parsing.
start = self.grammar.start
# Each stack entry is a tuple: (dfa, state, node).
# A node is a tuple: (type, children),
# where children is a list of nodes or None

10
jedi/parser/tokenize.py
View File

@@ -149,7 +149,7 @@ ALWAYS_BREAK_TOKENS = (';', 'import', 'from', 'class', 'def', 'try', 'except',
def source_tokens(source):
"""Generate tokens from a the source code (string)."""
source = source + '\n' # end with \n, because the parser needs it
source = source
readline = StringIO(source).readline
return generate_tokens(readline)
@@ -165,6 +165,7 @@ def generate_tokens(readline):
paren_level = 0 # count parentheses
indents = [0]
lnum = 0
max = 0
numchars = '0123456789'
contstr = ''
contline = None
@@ -282,9 +283,12 @@ def generate_tokens(readline):
paren_level -= 1
yield OP, token, spos, prefix
end_pos = (lnum, max - 1)
if new_line:
end_pos = lnum + 1, 0
else:
end_pos = lnum, max
# As the last position we just take the maximally possible position. We
# remove -1 for the last new line.
for indent in indents[1:]:
yield DEDENT, '', end_pos, ''
yield ENDMARKER, '', end_pos, prefix
yield ENDMARKER, '', end_pos, additional_prefix

23
jedi/parser/tree.py
View File

@@ -14,8 +14,8 @@ The easiest way to play with this module is to use :class:`parsing.Parser`.
:attr:`parsing.Parser.module` holds an instance of :class:`Module`:
>>> from jedi._compatibility import u
>>> from jedi.parser import Parser, load_grammar
>>> parser = Parser(load_grammar(), u('import os'), 'example.py')
>>> from jedi.parser import ParserWithRecovery, load_grammar
>>> parser = ParserWithRecovery(load_grammar(), u('import os'), 'example.py')
>>> submodule = parser.module
>>> submodule
<Module: example.py@1-1>
@@ -873,7 +873,10 @@ class Function(ClassOrFunc):
def annotation(self):
try:
return self.children[6] # 6th element: def foo(...) -> bar
if self.children[3] == "->":
return self.children[4]
assert self.children[3] == ":"
return None
except IndexError:
return None
@@ -952,6 +955,10 @@ class Lambda(Function):
def is_generator(self):
return False
def annotation(self):
# lambda functions do not support annotations
return None
@property
def yields(self):
return []
@@ -1404,8 +1411,14 @@ class Param(BaseNode):
return None
def annotation(self):
# Generate from tfpdef.
raise NotImplementedError
tfpdef = self._tfpdef()
if is_node(tfpdef, 'tfpdef'):
assert tfpdef.children[1] == ":"
assert len(tfpdef.children) == 3
annotation = tfpdef.children[2]
return annotation
else:
return None
def _tfpdef(self):
"""

4
jedi/parser/user_context.py
View File

@@ -4,7 +4,7 @@ import keyword
from jedi import cache
from jedi import common
from jedi.parser import tokenize, Parser
from jedi.parser import tokenize, ParserWithRecovery
from jedi._compatibility import u
from jedi.parser.fast import FastParser
from jedi.parser import tree
@@ -284,7 +284,7 @@ class UserContextParser(object):
# Don't pickle that module, because the main module is changing quickly
cache.save_parser(self._path, parser, pickling=False)
else:
parser = Parser(self._grammar, self._source, self._path)
parser = ParserWithRecovery(self._grammar, self._source, self._path)
self._parser_done_callback(parser)
return parser

161
test/completion/pep0484.py Normal file
View File

@@ -0,0 +1,161 @@
""" Pep-0484 type hinting """
# python >= 3.2
class A():
pass
def function_parameters(a: A, b, c: str, d: int, e: str, f: str, g: int=4):
"""
:param e: if docstring and annotation agree, only one should be returned
:type e: str
:param f: if docstring and annotation disagree, both should be returned
:type f: int
"""
#? A()
a
#?
b
#? str()
c
#? int()
d
#? str()
e
#? int() str()
f
# int()
g
def return_unspecified():
pass
#?
return_unspecified()
def return_none() -> None:
"""
Return type None means the same as no return type as far as jedi
is concerned
"""
pass
#?
return_none()
def return_str() -> str:
pass
#? str()
return_str()
def return_custom_class() -> A:
pass
#? A()
return_custom_class()
def return_annotation_and_docstring() -> str:
"""
:rtype: int
"""
pass
#? str() int()
return_annotation_and_docstring()
def return_annotation_and_docstring_different() -> str:
"""
:rtype: str
"""
pass
#? str()
return_annotation_and_docstring_different()
def annotation_forward_reference(b: "B") -> "B":
#? B()
b
#? B()
annotation_forward_reference(1)
#? ["test_element"]
annotation_forward_reference(1).t
class B:
test_element = 1
pass
class SelfReference:
test_element = 1
def test_method(self, x: "SelfReference") -> "SelfReference":
#? SelfReference()
x
#? ["test_element", "test_method"]
self.t
#? ["test_element", "test_method"]
x.t
#? ["test_element", "test_method"]
self.test_method(1).t
#? SelfReference()
SelfReference().test_method()
def function_with_non_pep_0484_annotation(
x: "I can put anything here",
xx: "",
yy: "\r\n\0;+*&^564835(---^&*34",
y: 3 + 3,
zz: float) -> int("42"):
# infers int from function call
#? int()
x
# infers int from function call
#? int()
xx
# infers int from function call
#? int()
yy
# infers str from function call
#? str()
y
#? float()
zz
#?
function_with_non_pep_0484_annotation(1, 2, 3, "force string")
def function_forward_reference_dynamic(
x: return_str_type(),
y: "return_str_type()") -> None:
# technically should not be resolvable since out of scope,
# but jedi is not smart enough for that
#? str()
x
#? str()
y
def return_str_type():
return str
X = str
def function_with_assined_class_in_reference(x: X, y: "Y"):
#? str()
x
#? int()
y
Y = int
def just_because_we_can(x: "flo" + "at"):
#? float()
x

17
test/run.py
View File

@@ -111,6 +111,7 @@ Tests look like this::
"""
import os
import re
import sys
from ast import literal_eval
from io import StringIO
from functools import reduce
@@ -127,7 +128,7 @@ TEST_USAGES = 3
class IntegrationTestCase(object):
def __init__(self, test_type, correct, line_nr, column, start, line,
path=None):
path=None, skip=None):
self.test_type = test_type
self.correct = correct
self.line_nr = line_nr
@@ -135,7 +136,7 @@ class IntegrationTestCase(object):
self.start = start
self.line = line
self.path = path
self.skip = None
self.skip = skip
@property
def module_name(self):
@@ -234,10 +235,11 @@ class IntegrationTestCase(object):
def collect_file_tests(lines, lines_to_execute):
makecase = lambda t: IntegrationTestCase(t, correct, line_nr, column,
start, line)
start, line, path=None, skip=skip)
start = None
correct = None
test_type = None
skip = None
for line_nr, line in enumerate(lines, 1):
if correct is not None:
r = re.match('^(\d+)\s*(.*)$', correct)
@@ -257,6 +259,15 @@ def collect_file_tests(lines, lines_to_execute):
yield makecase(TEST_DEFINITIONS)
correct = None
else:
# check for python minimal version number
match = re.match(r" *# *python *>= *(\d+(?:\.\d+)?)$", line)
if match:
minimal_python_version = tuple(
map(int, match.group(1).split(".")))
if sys.version_info >= minimal_python_version:
skip = None
else:
skip = "Minimal python version %s" % match.groups(1)
try:
r = re.search(r'(?:^|(?<=\s))#([?!<])\s*([^\n]*)', line)
# test_type is ? for completion and ! for goto_assignments

8
test/test_evaluate/test_absolute_import.py
View File

@@ -4,7 +4,7 @@ Python 2.X)
"""
import jedi
from jedi._compatibility import u
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from .. import helpers
@@ -12,7 +12,7 @@ def test_explicit_absolute_imports():
"""
Detect modules with ``from __future__ import absolute_import``.
"""
parser = Parser(load_grammar(), u("from __future__ import absolute_import"), "test.py")
parser = ParserWithRecovery(load_grammar(), u("from __future__ import absolute_import"), "test.py")
assert parser.module.has_explicit_absolute_import
@@ -20,7 +20,7 @@ def test_no_explicit_absolute_imports():
"""
Detect modules without ``from __future__ import absolute_import``.
"""
parser = Parser(load_grammar(), u("1"), "test.py")
parser = ParserWithRecovery(load_grammar(), u("1"), "test.py")
assert not parser.module.has_explicit_absolute_import
@@ -30,7 +30,7 @@ def test_dont_break_imports_without_namespaces():
assume that all imports have non-``None`` namespaces.
"""
src = u("from __future__ import absolute_import\nimport xyzzy")
parser = Parser(load_grammar(), src, "test.py")
parser = ParserWithRecovery(load_grammar(), src, "test.py")
assert parser.module.has_explicit_absolute_import

35
test/test_evaluate/test_annotations.py
View File

@@ -8,8 +8,8 @@ import pytest
def test_simple_annotations():
"""
Annotations only exist in Python 3.
At the moment we ignore them. So they should be parsed and not interfere
with anything.
If annotations adhere to PEP-0484, we use them (they override inference),
else they are parsed but ignored
"""
source = dedent("""\
@@ -27,3 +27,34 @@ def test_simple_annotations():
annot_ret('')""")
assert [d.name for d in jedi.Script(source, ).goto_definitions()] == ['str']
source = dedent("""\
def annot(a:int):
return a
annot('')""")
assert [d.name for d in jedi.Script(source, ).goto_definitions()] == ['int']
@pytest.mark.skipif('sys.version_info[0] < 3')
@pytest.mark.parametrize('reference', [
'assert 1',
'1',
'def x(): pass',
'1, 2',
r'1\n'
])
def test_illegal_forward_references(reference):
source = 'def foo(bar: "%s"): bar' % reference
assert not jedi.Script(source).goto_definitions()
@pytest.mark.skipif('sys.version_info[0] < 3')
def test_lambda_forward_references():
source = 'def foo(bar: "lambda: 3"): bar'
# For now just receiving the 3 is ok. I'm doubting that this is what we
# want. We also execute functions. Should we only execute classes?
assert jedi.Script(source).goto_definitions()

10
test/test_evaluate/test_buildout_detection.py
View File

@@ -7,7 +7,7 @@ from jedi.evaluate.sys_path import (_get_parent_dir_with_file,
sys_path_with_modifications,
_check_module)
from jedi.evaluate import Evaluator
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from ..helpers import cwd_at
@@ -37,7 +37,7 @@ def test_append_on_non_sys_path():
d = Dummy()
d.path.append('foo')"""))
grammar = load_grammar()
p = Parser(grammar, SRC)
p = ParserWithRecovery(grammar, SRC)
paths = _check_module(Evaluator(grammar), p.module)
assert len(paths) > 0
assert 'foo' not in paths
@@ -48,7 +48,7 @@ def test_path_from_invalid_sys_path_assignment():
import sys
sys.path = 'invalid'"""))
grammar = load_grammar()
p = Parser(grammar, SRC)
p = ParserWithRecovery(grammar, SRC)
paths = _check_module(Evaluator(grammar), p.module)
assert len(paths) > 0
assert 'invalid' not in paths
@@ -60,7 +60,7 @@ def test_sys_path_with_modifications():
import os
"""))
grammar = load_grammar()
p = Parser(grammar, SRC)
p = ParserWithRecovery(grammar, SRC)
p.module.path = os.path.abspath(os.path.join(os.curdir, 'module_name.py'))
paths = sys_path_with_modifications(Evaluator(grammar), p.module)
assert '/tmp/.buildout/eggs/important_package.egg' in paths
@@ -83,7 +83,7 @@ def test_path_from_sys_path_assignment():
if __name__ == '__main__':
sys.exit(important_package.main())"""))
grammar = load_grammar()
p = Parser(grammar, SRC)
p = ParserWithRecovery(grammar, SRC)
paths = _check_module(Evaluator(grammar), p.module)
assert 1 not in paths
assert '/home/test/.buildout/eggs/important_package.egg' in paths

4
test/test_evaluate/test_sys_path.py
View File

@@ -5,14 +5,14 @@ import sys
import pytest
from jedi._compatibility import unicode
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from jedi.evaluate import sys_path, Evaluator
def test_paths_from_assignment():
def paths(src):
grammar = load_grammar()
stmt = Parser(grammar, unicode(src)).module.statements[0]
stmt = ParserWithRecovery(grammar, unicode(src)).module.statements[0]
return set(sys_path._paths_from_assignment(Evaluator(grammar), stmt))
assert paths('sys.path[0:0] = ["a"]') == set(['a'])

4
test/test_new_parser.py
View File

@@ -1,11 +1,11 @@
from jedi._compatibility import u
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
def test_basic_parsing():
def compare(string):
"""Generates the AST object and then regenerates the code."""
assert Parser(load_grammar(), string).module.get_code() == string
assert ParserWithRecovery(load_grammar(), string).module.get_code() == string
compare(u('\na #pass\n'))
compare(u('wblabla* 1\t\n'))

10
test/test_parser/test_get_code.py
View File

@@ -3,7 +3,7 @@ import difflib
import pytest
from jedi._compatibility import u
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
code_basic_features = u('''
"""A mod docstring"""
@@ -44,7 +44,7 @@ def diff_code_assert(a, b, n=4):
def test_basic_parsing():
"""Validate the parsing features"""
prs = Parser(load_grammar(), code_basic_features)
prs = ParserWithRecovery(load_grammar(), code_basic_features)
diff_code_assert(
code_basic_features,
prs.module.get_code()
@@ -53,7 +53,7 @@ def test_basic_parsing():
def test_operators():
src = u('5 * 3')
prs = Parser(load_grammar(), src)
prs = ParserWithRecovery(load_grammar(), src)
diff_code_assert(src, prs.module.get_code())
@@ -82,7 +82,7 @@ def method_with_docstring():
"""class docstr"""
pass
''')
assert Parser(load_grammar(), s).module.get_code() == s
assert ParserWithRecovery(load_grammar(), s).module.get_code() == s
def test_end_newlines():
@@ -92,7 +92,7 @@ def test_end_newlines():
line the parser needs.
"""
def test(source, end_pos):
module = Parser(load_grammar(), u(source)).module
module = ParserWithRecovery(load_grammar(), u(source)).module
assert module.get_code() == source
assert module.end_pos == end_pos

28
test/test_parser/test_parser.py
View File

@@ -3,7 +3,7 @@ import sys
import jedi
from jedi._compatibility import u, is_py3
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from jedi.parser.user_context import UserContextParser
from jedi.parser import tree as pt
from textwrap import dedent
@@ -23,7 +23,7 @@ def test_user_statement_on_import():
class TestCallAndName():
def get_call(self, source):
# Get the simple_stmt and then the first one.
simple_stmt = Parser(load_grammar(), u(source)).module.children[0]
simple_stmt = ParserWithRecovery(load_grammar(), u(source)).module.children[0]
return simple_stmt.children[0]
def test_name_and_call_positions(self):
@@ -58,7 +58,7 @@ class TestCallAndName():
class TestSubscopes():
def get_sub(self, source):
return Parser(load_grammar(), u(source)).module.subscopes[0]
return ParserWithRecovery(load_grammar(), u(source)).module.subscopes[0]
def test_subscope_names(self):
name = self.get_sub('class Foo: pass').name
@@ -74,7 +74,7 @@ class TestSubscopes():
class TestImports():
def get_import(self, source):
return Parser(load_grammar(), source).module.imports[0]
return ParserWithRecovery(load_grammar(), source).module.imports[0]
def test_import_names(self):
imp = self.get_import(u('import math\n'))
@@ -89,13 +89,13 @@ class TestImports():
def test_module():
module = Parser(load_grammar(), u('asdf'), 'example.py').module
module = ParserWithRecovery(load_grammar(), u('asdf'), 'example.py').module
name = module.name
assert str(name) == 'example'
assert name.start_pos == (1, 0)
assert name.end_pos == (1, 7)
module = Parser(load_grammar(), u('asdf')).module
module = ParserWithRecovery(load_grammar(), u('asdf')).module
name = module.name
assert str(name) == ''
assert name.start_pos == (1, 0)
@@ -108,7 +108,7 @@ def test_end_pos():
def func():
y = None
'''))
parser = Parser(load_grammar(), s)
parser = ParserWithRecovery(load_grammar(), s)
scope = parser.module.subscopes[0]
assert scope.start_pos == (3, 0)
assert scope.end_pos == (5, 0)
@@ -121,7 +121,7 @@ def test_carriage_return_statements():
# this is a namespace package
'''))
source = source.replace('\n', '\r\n')
stmt = Parser(load_grammar(), source).module.statements[0]
stmt = ParserWithRecovery(load_grammar(), source).module.statements[0]
assert '#' not in stmt.get_code()
@@ -129,7 +129,7 @@ def test_incomplete_list_comprehension():
""" Shouldn't raise an error, same bug as #418. """
# With the old parser this actually returned a statement. With the new
# parser only valid statements generate one.
assert Parser(load_grammar(), u('(1 for def')).module.statements == []
assert ParserWithRecovery(load_grammar(), u('(1 for def')).module.statements == []
def test_hex_values_in_docstring():
@@ -141,7 +141,7 @@ def test_hex_values_in_docstring():
return 1
'''
doc = Parser(load_grammar(), dedent(u(source))).module.subscopes[0].raw_doc
doc = ParserWithRecovery(load_grammar(), dedent(u(source))).module.subscopes[0].raw_doc
if is_py3:
assert doc == '\xff'
else:
@@ -160,7 +160,7 @@ def test_error_correction_with():
def test_newline_positions():
endmarker = Parser(load_grammar(), u('a\n')).module.children[-1]
endmarker = ParserWithRecovery(load_grammar(), u('a\n')).module.children[-1]
assert endmarker.end_pos == (2, 0)
new_line = endmarker.get_previous()
assert new_line.start_pos == (1, 1)
@@ -174,7 +174,7 @@ def test_end_pos_error_correction():
end_pos, even if something breaks in the parser (error correction).
"""
s = u('def x():\n .')
m = Parser(load_grammar(), s).module
m = ParserWithRecovery(load_grammar(), s).module
func = m.children[0]
assert func.type == 'funcdef'
# This is not exactly correct, but ok, because it doesn't make a difference
@@ -191,7 +191,7 @@ def test_param_splitting():
def check(src, result):
# Python 2 tuple params should be ignored for now.
grammar = load_grammar('grammar%s.%s' % sys.version_info[:2])
m = Parser(grammar, u(src)).module
m = ParserWithRecovery(grammar, u(src)).module
if is_py3:
assert not m.subscopes
else:
@@ -211,5 +211,5 @@ def test_unicode_string():
def test_backslash_dos_style():
grammar = load_grammar()
m = Parser(grammar, u('\\\r\n')).module
m = ParserWithRecovery(grammar, u('\\\r\n')).module
assert m

13
test/test_parser/test_parser_tree.py
View File

@@ -5,17 +5,18 @@ from textwrap import dedent
import pytest
from jedi._compatibility import u, unicode
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
from jedi.parser import tree as pt
class TestsFunctionAndLambdaParsing(object):
FIXTURES = [
('def my_function(x, y, z):\n return x + y * z\n', {
('def my_function(x, y, z) -> str:\n return x + y * z\n', {
'name': 'my_function',
'call_sig': 'my_function(x, y, z)',
'params': ['x', 'y', 'z'],
'annotation': "str",
}),
('lambda x, y, z: x + y * z\n', {
'name': '<lambda>',
@@ -26,7 +27,7 @@ class TestsFunctionAndLambdaParsing(object):
@pytest.fixture(params=FIXTURES)
def node(self, request):
parsed = Parser(load_grammar(), dedent(u(request.param[0])))
parsed = ParserWithRecovery(load_grammar(), dedent(u(request.param[0])))
request.keywords['expected'] = request.param[1]
return parsed.module.subscopes[0]
@@ -55,7 +56,11 @@ class TestsFunctionAndLambdaParsing(object):
assert not node.yields
def test_annotation(self, node, expected):
assert node.annotation() is expected.get('annotation', None)
expected_annotation = expected.get('annotation', None)
if expected_annotation is None:
assert node.annotation() is None
else:
assert node.annotation().value == expected_annotation
def test_get_call_signature(self, node, expected):
assert node.get_call_signature() == expected['call_sig']

8
test/test_parser/test_tokenize.py
View File

@@ -7,7 +7,7 @@ import pytest
from jedi._compatibility import u, is_py3
from jedi.parser.token import NAME, OP, NEWLINE, STRING, INDENT
from jedi.parser import Parser, load_grammar, tokenize
from jedi.parser import ParserWithRecovery, load_grammar, tokenize
from ..helpers import unittest
@@ -15,7 +15,7 @@ from ..helpers import unittest
class TokenTest(unittest.TestCase):
def test_end_pos_one_line(self):
parsed = Parser(load_grammar(), dedent(u('''
parsed = ParserWithRecovery(load_grammar(), dedent(u('''
def testit():
a = "huhu"
''')))
@@ -23,7 +23,7 @@ class TokenTest(unittest.TestCase):
assert tok.end_pos == (3, 14)
def test_end_pos_multi_line(self):
parsed = Parser(load_grammar(), dedent(u('''
parsed = ParserWithRecovery(load_grammar(), dedent(u('''
def testit():
a = """huhu
asdfasdf""" + "h"
@@ -108,7 +108,7 @@ class TokenTest(unittest.TestCase):
]
for s in string_tokens:
parsed = Parser(load_grammar(), u('''a = %s\n''' % s))
parsed = ParserWithRecovery(load_grammar(), u('''a = %s\n''' % s))
simple_stmt = parsed.module.children[0]
expr_stmt = simple_stmt.children[0]
assert len(expr_stmt.children) == 3

4
test/test_regression.py
View File

@@ -15,7 +15,7 @@ from jedi._compatibility import u
from jedi import Script
from jedi import api
from jedi.evaluate import imports
from jedi.parser import Parser, load_grammar
from jedi.parser import ParserWithRecovery, load_grammar
#jedi.set_debug_function()
@@ -102,7 +102,7 @@ class TestRegression(TestCase):
def test_end_pos_line(self):
# jedi issue #150
s = u("x()\nx( )\nx( )\nx ( )")
parser = Parser(load_grammar(), s)
parser = ParserWithRecovery(load_grammar(), s)
for i, s in enumerate(parser.module.statements):
assert s.end_pos == (i + 1, i + 3)