mirror of
https://github.com/github/codeql.git
synced 2026-05-05 13:45:19 +02:00
Python: Only consider the closest SOURCE
(in use-use flow) a source
This commit is contained in:
Rasmus Lerchedahl Petersen
@@ -41,7 +41,7 @@ def SINK_F(x):
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def test_tuple_with_local_flow():
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x = (NONSOURCE, SOURCE)
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y = x[1]
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SINK(y) #$ flow="SOURCE, l:42 -> y" flow="'source', l:20 -> y"
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SINK(y) #$ flow="SOURCE, l:42 -> y"
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def test_tuple_negative():
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@@ -53,13 +53,13 @@ def test_tuple_negative():
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# 6.2.1. Identifiers (Names)
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def test_names():
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x = SOURCE
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SINK(x) #$ flow="SOURCE, l:55 -> x" flow="'source', l:20 -> x"
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SINK(x) #$ flow="SOURCE, l:55 -> x"
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# 6.2.2. Literals
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def test_string_literal():
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x = "source"
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SINK(x) #$ flow="'source', l:61 -> x"
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SINK(x) #$ flow="'source', l:61 -> x"
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def test_bytes_literal():
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@@ -85,13 +85,13 @@ def test_imagnumber_literal():
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# 6.2.3. Parenthesized forms
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def test_parenthesized_form():
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x = (SOURCE)
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SINK(x) #$ flow="SOURCE, l:87 -> x" flow="'source', l:20 -> x"
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SINK(x) #$ flow="SOURCE, l:87 -> x"
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# 6.2.5. List displays
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def test_list_display():
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x = [SOURCE]
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SINK(x[0]) #$ flow="SOURCE, l:93 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:93 -> x[0]"
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def test_list_display_negative():
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@@ -101,109 +101,109 @@ def test_list_display_negative():
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def test_list_comprehension():
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x = [SOURCE for y in [NONSOURCE]]
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SINK(x[0]) #$ flow="SOURCE, l:103 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:103 -> x[0]"
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def test_list_comprehension_flow():
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x = [y for y in [SOURCE]]
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SINK(x[0]) #$ flow="SOURCE, l:108 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:108 -> x[0]"
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def test_list_comprehension_inflow():
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l = [SOURCE]
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x = [y for y in l]
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SINK(x[0]) #$ flow="SOURCE, l:113 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:113 -> x[0]"
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def test_nested_list_display():
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x = [*[SOURCE]]
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SINK(x[0]) #$ MISSING:flow="SOURCE, l:119 -> x[0]" MISSING:flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ MISSING:flow="SOURCE, l:119 -> x[0]"
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# 6.2.6. Set displays
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def test_set_display():
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x = {SOURCE}
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SINK(x.pop()) #$ flow="SOURCE, l:125 -> x.pop()" flow="'source', l:20 -> x.pop()"
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SINK(x.pop()) #$ flow="SOURCE, l:125 -> x.pop()"
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def test_set_comprehension():
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x = {SOURCE for y in [NONSOURCE]}
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SINK(x.pop()) #$ flow="SOURCE, l:130 -> x.pop()" flow="'source', l:20 -> x.pop()"
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SINK(x.pop()) #$ flow="SOURCE, l:130 -> x.pop()"
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def test_set_comprehension_flow():
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x = {y for y in [SOURCE]}
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SINK(x.pop()) #$ flow="SOURCE, l:135 -> x.pop()" flow="'source', l:20 -> x.pop()"
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SINK(x.pop()) #$ flow="SOURCE, l:135 -> x.pop()"
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def test_set_comprehension_inflow():
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l = {SOURCE}
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x = {y for y in l}
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SINK(x.pop()) #$ flow="SOURCE, l:140 -> x.pop()" flow="'source', l:20 -> x.pop()"
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SINK(x.pop()) #$ flow="SOURCE, l:140 -> x.pop()"
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def test_nested_set_display():
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x = {*{SOURCE}}
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SINK(x.pop()) #$ MISSING:flow="SOURCE, l:146 -> x.pop()" MISSING:flow="'source', l:20 -> x.pop()"
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SINK(x.pop()) #$ MISSING:flow="SOURCE, l:146 -> x.pop()"
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# 6.2.7. Dictionary displays
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def test_dict_display():
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x = {"s": SOURCE}
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SINK(x["s"]) #$ flow="SOURCE, l:152 -> x['s']" flow="'source', l:20 -> x['s']"
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SINK(x["s"]) #$ flow="SOURCE, l:152 -> x['s']"
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def test_dict_display_pop():
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x = {"s": SOURCE}
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SINK(x.pop("s")) #$ flow="SOURCE, l:157 -> x.pop(..)" flow="'source', l:20 -> x.pop(..)"
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SINK(x.pop("s")) #$ flow="SOURCE, l:157 -> x.pop(..)"
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def test_dict_comprehension():
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x = {y: SOURCE for y in ["s"]}
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SINK(x["s"]) #$ MISSING:flow="SOURCE, l:152 -> x['s']" MISING:flow="'source', l:20 -> x['s']"
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SINK(x["s"]) #$ MISSING:flow="SOURCE, l:152 -> x['s']"
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def test_dict_comprehension_pop():
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x = {y: SOURCE for y in ["s"]}
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SINK(x.pop("s")) #$ MISSING:flow="SOURCE, l:167 -> x.pop()" MISSING:flow="'source', l:20 -> x.pop()"
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SINK(x.pop("s")) #$ MISSING:flow="SOURCE, l:167 -> x.pop()"
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def test_nested_dict_display():
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x = {**{"s": SOURCE}}
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SINK(x["s"]) #$ MISSING:flow="SOURCE, l:172 -> x['s']" MISING:flow="'source', l:20 -> x['s']"
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SINK(x["s"]) #$ MISSING:flow="SOURCE, l:172 -> x['s']"
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def test_nested_dict_display_pop():
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x = {**{"s": SOURCE}}
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SINK(x.pop("s")) #$ MISSING:flow="SOURCE, l:177 -> x.pop()" MISSING:flow="'source', l:20 -> x.pop()"
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SINK(x.pop("s")) #$ MISSING:flow="SOURCE, l:177 -> x.pop()"
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# Nested comprehensions
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def test_nested_comprehension():
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x = [y for z in [[SOURCE]] for y in z]
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SINK(x[0]) #$ flow="SOURCE, l:183 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:183 -> x[0]"
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def test_nested_comprehension_deep_with_local_flow():
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x = [y for v in [[[[SOURCE]]]] for u in v for z in u for y in z]
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SINK(x[0]) #$ flow="SOURCE, l:188 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:188 -> x[0]"
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def test_nested_comprehension_dict():
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d = {"s": [SOURCE]}
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x = [y for k, v in d.items() for y in v]
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SINK(x[0]) #$ MISSING:flow="SOURCE, l:193 -> x[0]" MISING:flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ MISSING:flow="SOURCE, l:193 -> x[0]"
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def test_nested_comprehension_paren():
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x = [y for y in (z for z in [SOURCE])]
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SINK(x[0]) #$ flow="SOURCE, l:199 -> x[0]" flow="'source', l:20 -> x[0]"
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SINK(x[0]) #$ flow="SOURCE, l:199 -> x[0]"
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# 6.2.8. Generator expressions
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def test_generator():
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x = (SOURCE for y in [NONSOURCE])
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SINK([*x][0]) #$ MISSING:flow="SOURCE, l:205 -> List[0]" MISING:flow="'source', l:20 -> List[0]"
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SINK([*x][0]) #$ MISSING:flow="SOURCE, l:205 -> List[0]"
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# 6.2.9. Yield expressions
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@@ -213,7 +213,7 @@ def gen(x):
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def test_yield():
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g = gen(SOURCE)
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SINK(next(g)) #$ MISSING:flow="SOURCE, l:215 -> next()" MISING:flow="'source', l:20 -> next()"
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SINK(next(g)) #$ MISSING:flow="SOURCE, l:215 -> next()"
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def gen_from(x):
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@@ -222,19 +222,19 @@ def gen_from(x):
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def test_yield_from():
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g = gen_from(SOURCE)
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SINK(next(g)) #$ MISSING:flow="SOURCE, l:224 -> next()" MISING:flow="'source', l:20 -> next()"
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SINK(next(g)) #$ MISSING:flow="SOURCE, l:224 -> next()"
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# a statement rather than an expression, but related to generators
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def test_for():
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for x in gen(SOURCE):
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SINK(x) #$ MISSING:flow="SOURCE, l:230 -> x" MISING:flow="'source', l:20 -> x"
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SINK(x) #$ MISSING:flow="SOURCE, l:230 -> x"
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# 6.2.9.1. Generator-iterator methods
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def test___next__():
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g = gen(SOURCE)
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SINK(g.__next__()) #$ MISSING:flow="SOURCE, l:236 -> g.__next__()" MISSING:flow="'source', l:20 -> g.__next__()"
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SINK(g.__next__()) #$ MISSING:flow="SOURCE, l:236 -> g.__next__()"
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def gen2(x):
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@@ -246,7 +246,7 @@ def gen2(x):
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def test_send():
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g = gen2(NONSOURCE)
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n = next(g)
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SINK(g.send(SOURCE)) #$ MISSING:flow="SOURCE -> g.send()" MISSING:flow="'source', l:20 -> g.send()"
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SINK(g.send(SOURCE)) #$ MISSING:flow="SOURCE -> g.send()"
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def gen_ex(x):
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@@ -259,7 +259,7 @@ def gen_ex(x):
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def test_throw():
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g = gen_ex(SOURCE)
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n = next(g)
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SINK(g.throw(TypeError)) #$ MISSING:flow="SOURCE, l:260 -> g.throw()" MISSING:flow="'source', l:20 -> g.throw()"
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SINK(g.throw(TypeError)) #$ MISSING:flow="SOURCE, l:260 -> g.throw()"
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# no `test_close` as `close` involves no data flow
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@@ -280,7 +280,7 @@ def runa(a):
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async def atest___anext__():
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g = agen(SOURCE)
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SINK(await g.__anext__()) #$ MISSING:flow="SOURCE, l:282 -> g.__anext__()" MISSING:flow="'source', l:20 -> g.__anext__()"
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SINK(await g.__anext__()) #$ MISSING:flow="SOURCE, l:282 -> g.__anext__()"
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def test___anext__():
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@@ -296,7 +296,7 @@ async def agen2(x):
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async def atest_asend():
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g = agen2(NONSOURCE)
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n = await g.__anext__()
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SINK(await g.asend(SOURCE)) #$ MISSING:flow="SOURCE -> g.asend()" MISSING:flow="'source', l:20 -> g.asend()"
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SINK(await g.asend(SOURCE)) #$ MISSING:flow="SOURCE -> g.asend()"
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def test_asend():
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@@ -313,7 +313,7 @@ async def agen_ex(x):
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async def atest_athrow():
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g = agen_ex(SOURCE)
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n = await g.__anext__()
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SINK(await g.athrow(TypeError)) #$ MISSING:flow="SOURCE, l:314 -> g.athrow()" MISSING:flow="'source', l:20 -> g.athrow()"
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SINK(await g.athrow(TypeError)) #$ MISSING:flow="SOURCE, l:314 -> g.athrow()"
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def test_athrow():
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@@ -326,22 +326,22 @@ class C:
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def test_attribute_reference():
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SINK(C.a) #$ MISSING:flow="SOURCE, l:325 -> C.a" MISSING:flow="'source', l:20 -> C.a"
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SINK(C.a) #$ MISSING:flow="SOURCE, l:325 -> C.a"
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# overriding __getattr__ should be tested by the class coverage tests
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# 6.3.2. Subscriptions
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def test_subscription_tuple():
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SINK((SOURCE,)[0]) #$ flow="SOURCE -> Tuple[0]" flow="'source', l:20 -> Tuple[0]"
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SINK((SOURCE,)[0]) #$ flow="SOURCE -> Tuple[0]"
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def test_subscription_list():
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SINK([SOURCE][0]) #$ flow="SOURCE -> List[0]" flow="'source', l:20 -> List[0]"
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SINK([SOURCE][0]) #$ flow="SOURCE -> List[0]"
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def test_subscription_mapping():
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SINK({"s": SOURCE}["s"]) #$ flow="SOURCE -> Dict['s']" flow="'source', l:20 -> Dict['s']"
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SINK({"s": SOURCE}["s"]) #$ flow="SOURCE -> Dict['s']"
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# overriding __getitem__ should be tested by the class coverage tests
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@@ -353,7 +353,7 @@ l = [SOURCE]
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def test_slicing():
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s = l[0:1:1]
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SINK(s[0]) #$ MISSING:flow="SOURCE -> s[0]" MISSING:flow="'source', l:20 -> s[0]"
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SINK(s[0]) #$ MISSING:flow="SOURCE -> s[0]"
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# The grammar seems to allow `l[0:1:1, 0:1]`, but the interpreter does not like it
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@@ -364,7 +364,7 @@ def second(a, b):
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def test_call_positional():
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SINK(second(NONSOURCE, SOURCE)) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
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SINK(second(NONSOURCE, SOURCE)) #$ flow="SOURCE -> second(..)"
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def test_call_positional_negative():
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@@ -372,7 +372,7 @@ def test_call_positional_negative():
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def test_call_keyword():
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SINK(second(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
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SINK(second(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> second(..)"
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def test_call_unpack_iterable():
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@@ -380,7 +380,7 @@ def test_call_unpack_iterable():
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def test_call_unpack_mapping():
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SINK(second(NONSOURCE, **{"b": SOURCE})) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
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SINK(second(NONSOURCE, **{"b": SOURCE})) #$ flow="SOURCE -> second(..)"
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def f_extra_pos(a, *b):
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@@ -388,7 +388,7 @@ def f_extra_pos(a, *b):
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def test_call_extra_pos():
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SINK(f_extra_pos(NONSOURCE, SOURCE)) #$ flow="SOURCE -> f_extra_pos(..)" flow="'source', l:20 -> f_extra_pos(..)"
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SINK(f_extra_pos(NONSOURCE, SOURCE)) #$ flow="SOURCE -> f_extra_pos(..)"
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def f_extra_keyword(a, **b):
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@@ -396,7 +396,7 @@ def f_extra_keyword(a, **b):
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def test_call_extra_keyword():
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SINK(f_extra_keyword(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> f_extra_keyword(..)" flow="'source', l:20 -> f_extra_keyword(..)"
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SINK(f_extra_keyword(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> f_extra_keyword(..)"
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# return the name of the first extra keyword argument
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@@ -406,18 +406,18 @@ def f_extra_keyword_flow(**a):
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# call the function with our source as the name of the keyword arguemnt
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def test_call_extra_keyword_flow():
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SINK(f_extra_keyword_flow(**{SOURCE: None})) #$ MISSING:flow="SOURCE -> f_extra_keyword(..)" MISSING:flow="'source', l:20 -> f_extra_keyword(..)"
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SINK(f_extra_keyword_flow(**{SOURCE: None})) #$ MISSING:flow="SOURCE -> f_extra_keyword(..)"
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# 6.12. Assignment expressions
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def test_assignment_expression():
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x = NONSOURCE
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SINK(x := SOURCE) #$ MISSING:flow="SOURCE -> x" MISSING:flow="'source', l:20 -> x"
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SINK(x := SOURCE) #$ MISSING:flow="SOURCE -> x"
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# 6.13. Conditional expressions
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def test_conditional_true():
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SINK(SOURCE if True else NONSOURCE) #$ flow="SOURCE -> IfExp" flow="'source', l:20 -> IfExp"
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SINK(SOURCE if True else NONSOURCE) #$ flow="SOURCE -> IfExp"
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def test_conditional_true_guards():
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@@ -425,7 +425,7 @@ def test_conditional_true_guards():
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def test_conditional_false():
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SINK(NONSOURCE if False else SOURCE) #$ flow="SOURCE -> IfExp" flow="'source', l:20 -> IfExp"
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SINK(NONSOURCE if False else SOURCE) #$ flow="SOURCE -> IfExp"
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def test_conditional_false_guards():
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@@ -435,13 +435,13 @@ def test_conditional_false_guards():
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# Condition is evaluated first, so x is SOURCE once chosen
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def test_conditional_evaluation_true():
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x = NONSOURCE
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SINK(x if (SOURCE == (x := SOURCE)) else NONSOURCE) #$ MISSING:flow="SOURCE -> IfExp" MISSING:flow="'source', l:20 -> IfExp"
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SINK(x if (SOURCE == (x := SOURCE)) else NONSOURCE) #$ MISSING:flow="SOURCE -> IfExp"
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# Condition is evaluated first, so x is SOURCE once chosen
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def test_conditional_evaluation_false():
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x = NONSOURCE
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SINK(NONSOURCE if (NONSOURCE == (x := SOURCE)) else x) #$ MISSING:flow="SOURCE -> IfExp" MISSING:flow="'source', l:20 -> IfExp"
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SINK(NONSOURCE if (NONSOURCE == (x := SOURCE)) else x) #$ MISSING:flow="SOURCE -> IfExp"
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# 6.14. Lambdas
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@@ -449,14 +449,14 @@ def test_lambda():
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def f(x):
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return x
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SINK(f(SOURCE)) #$ flow="SOURCE -> f(..)" flow="'source', l:20 -> f(..)"
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SINK(f(SOURCE)) #$ flow="SOURCE -> f(..)"
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def test_lambda_positional():
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def second(a, b):
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return b
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SINK(second(NONSOURCE, SOURCE)) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
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SINK(second(NONSOURCE, SOURCE)) #$ flow="SOURCE -> second(..)"
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def test_lambda_positional_negative():
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@@ -470,50 +470,50 @@ def test_lambda_keyword():
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def second(a, b):
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return b
|
||||
|
||||
SINK(second(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
|
||||
SINK(second(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> second(..)"
|
||||
|
||||
|
||||
def test_lambda_unpack_iterable():
|
||||
def second(a, b):
|
||||
return b
|
||||
|
||||
SINK(second(NONSOURCE, *[SOURCE])) #$ MISSING:flow="SOURCE -> second(..)" MISSING:flow="'source', l:20 -> second(..)" # Flow missing
|
||||
SINK(second(NONSOURCE, *[SOURCE])) #$ MISSING:flow="SOURCE -> second(..)" # Flow missing
|
||||
|
||||
|
||||
def test_lambda_unpack_mapping():
|
||||
def second(a, b):
|
||||
return b
|
||||
|
||||
SINK(second(NONSOURCE, **{"b": SOURCE})) #$ flow="SOURCE -> second(..)" flow="'source', l:20 -> second(..)"
|
||||
SINK(second(NONSOURCE, **{"b": SOURCE})) #$ flow="SOURCE -> second(..)"
|
||||
|
||||
|
||||
def test_lambda_extra_pos():
|
||||
f_extra_pos = lambda a, *b: b[0]
|
||||
SINK(f_extra_pos(NONSOURCE, SOURCE)) #$ flow="SOURCE -> f_extra_pos(..)" flow="'source', l:20 -> f_extra_pos(..)"
|
||||
SINK(f_extra_pos(NONSOURCE, SOURCE)) #$ flow="SOURCE -> f_extra_pos(..)"
|
||||
|
||||
|
||||
def test_lambda_extra_keyword():
|
||||
f_extra_keyword = lambda a, **b: b["b"]
|
||||
SINK(f_extra_keyword(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> f_extra_keyword(..)" flow="'source', l:20 -> f_extra_keyword(..)"
|
||||
SINK(f_extra_keyword(NONSOURCE, b=SOURCE)) #$ flow="SOURCE -> f_extra_keyword(..)"
|
||||
|
||||
|
||||
# call the function with our source as the name of the keyword argument
|
||||
def test_lambda_extra_keyword_flow():
|
||||
# return the name of the first extra keyword argument
|
||||
f_extra_keyword_flow = lambda **a: [*a][0]
|
||||
SINK(f_extra_keyword_flow(**{SOURCE: None})) #$ MISSING:flow="SOURCE -> f_extra_keyword(..)" MISSING:flow="'source', l:20 -> f_extra_keyword(..)"
|
||||
SINK(f_extra_keyword_flow(**{SOURCE: None})) #$ MISSING:flow="SOURCE -> f_extra_keyword(..)"
|
||||
|
||||
|
||||
@expects(4)
|
||||
def test_swap():
|
||||
a = SOURCE
|
||||
b = NONSOURCE
|
||||
SINK(a) #$ flow="SOURCE, l:509 -> a" flow="'source', l:20 -> a"
|
||||
SINK(a) #$ flow="SOURCE, l:509 -> a"
|
||||
SINK_F(b)
|
||||
|
||||
a, b = b, a
|
||||
SINK_F(a)
|
||||
SINK(b) #$ flow="SOURCE, l:509 -> b" flow="'source', l:20 -> b"
|
||||
SINK(b) #$ flow="SOURCE, l:509 -> b"
|
||||
|
||||
|
||||
def test_deep_callgraph():
|
||||
@@ -538,7 +538,7 @@ def test_deep_callgraph():
|
||||
return f5(arg)
|
||||
|
||||
x = f6(SOURCE)
|
||||
SINK(x) #$ MISSING:flow="SOURCE, l:540 -> x" MISING:flow="'source', l:20 -> x"
|
||||
SINK(x) #$ MISSING:flow="SOURCE, l:540 -> x"
|
||||
|
||||
|
||||
@expects(2)
|
||||
|
||||
Reference in New Issue
Block a user