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# -----------------
# list comprehensions
# -----------------
# basics:
a = ['' for a in [1]]
#? str()
a[0]
#? ['insert']
a.insert
a = [a for a in [1]]
#? int()
a[0]
y = 1.0
# Should not leak.
[y for y in [3]]
#? float()
y
a = [a for a in (1, 2)]
#? int()
a[0]
a = [a for a,b in [(1,'')]]
#? int()
a[0]
a = [a for (a,b) in [(1,'')]]
#? int()
a[0]
arr = [1,'']
a = [a for a in arr]
#? int()
a[0]
#? str()
a[1]
#? int() str()
a[2]
a = [a if 1.0 else '' for a in [1] if [1.0]]
#? int() str()
a[0]
# name resolve should be correct
left, right = 'a', 'b'
left, right = [x for x in (left, right)]
#? str()
left
# with a dict literal
#? int()
[a for a in {1:'x'}][0]
# list comprehensions should also work in combination with functions
def _listen(arg):
for x in arg:
#? str()
x
_listen(['' for x in [1]])
#?
([str for x in []])[0]
# -----------------
# nested list comprehensions
# -----------------
b = [a for arr in [[1, 1.0]] for a in arr]
#? int()
b[0]
#? float()
b[1]
b = [arr for arr in [[1, 1.0]] for a in arr]
#? int()
b[0][0]
#? float()
b[1][1]
b = [a for arr in [[1]] if '' for a in arr if '']
#? int()
b[0]
b = [b for arr in [[[1.0]]] for a in arr for b in a]
#? float()
b[0]
#? str()
[x for x in 'chr'][0]
# From GitHub #26
#? list()
a = [[int(v) for v in line.strip().split() if v] for line in ["123", str(), "123"] if line]
#? list()
a[0]
#? int()
a[0][0]
# From GitHub #1524
#?
[nothing for nothing, _ in [1]][0]
# -----------------
# generator comprehensions
# -----------------
left, right = (i for i in (1, ''))
#? int()
left
#? str()
right
gen = (i for i in (1,))
#? int()
next(gen)
#?
gen[0]
gen = (a for arr in [[1.0]] for a in arr)
#? float()
next(gen)
#? int()
(i for i in (1,)).send()
# issues with different formats
left, right = (i for i in
('1', 2))
#? str()
left
#? int()
right
# -----------------
# name resolution in comprehensions.
# -----------------
def x():
"""Should not try to resolve to the if hio, which was a bug."""
#? 22
[a for a in h if hio]
if hio: pass
# -----------------
# slices
# -----------------
#? list()
foo = [x for x in [1, '']][:1]
#? int()
foo[0]
#? str()
foo[1]
# -----------------
# In class
# -----------------
class X():
def __init__(self, bar):
self.bar = bar
def foo(self):
x = [a for a in self.bar][0]
#? int()
x
return x
#? int()
X([1]).foo()
# -----------------
# dict comprehensions
# -----------------
#? int()
list({a - 1: 3 for a in [1]})[0]
d = {a - 1: b for a, b in {1: 'a', 3: 1.0}.items()}
#? int()
list(d)[0]
#? str() float()
d.values()[0]
#? str()
d[0]
#? float() str()
d[1]
#? float()
d[2]
# -----------------
# set comprehensions
# -----------------
#? set()
{a - 1 for a in [1]}
#? set()
{a for a in range(10)}
#? int()
[x for x in {a for a in range(10)}][0]
#? int()
{a for a in range(10)}.pop()
#? float() str()
{b for a in [[3.0], ['']] for b in a}.pop()
#? int()
next(iter({a for a in range(10)}))
#? int()
[a for a in {1, 2, 3}][0]
# -----------------
# syntax errors
# -----------------
# Issue #1146
#? ['list']
[int(str(x.value) for x in list
def reset_missing_bracket(): pass
# -----------------
# function calls
# -----------------
def foo(arg):
return arg
x = foo(x for x in [1])
#? int()
next(x)
#?
x[0]
# While it's illegal to have more than one argument, when a generator
# expression is involved, it's still a valid parse tree and Jedi should still
# work (and especially not raise Exceptions). It's debatable wheter inferring
# values for invalid statements is a good idea, but not failing is a must.
#? int()
next(foo(x for x in [1], 1))
def bar(x, y):
return y
#? str()
next(bar(x for x in [1], x for x in ['']))
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