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-- Test cases for parser. Each test case consists of two sections.
-- The first section contains [case NAME] followed by the input code, while
-- the second section contains [out] followed by the output from the parser.
--
-- Lines starting with "--" in this file will be ignored, except for lines
-- starting with "----" that are not ignored. The first two dashes of these
-- lines are interpreted as escapes and removed.
[case testEmptyFile]
[out]
MypyFile:1()
[case testExpressionStatement]
1
[out]
MypyFile:1(
ExpressionStmt:1(
IntExpr(1)))
[case testAssignment]
x = 1
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(1)))
[case testExpressionBasics]
x = f(1, None)
123 * (2 + x)
"hello".lower()
-1.23
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
CallExpr:1(
NameExpr(f)
Args(
IntExpr(1)
NameExpr(None))))
ExpressionStmt:2(
OpExpr:2(
*
IntExpr(123)
OpExpr:2(
+
IntExpr(2)
NameExpr(x))))
ExpressionStmt:3(
CallExpr:3(
MemberExpr:3(
StrExpr(hello)
lower)
Args()))
ExpressionStmt:4(
UnaryExpr:4(
-
FloatExpr(1.23))))
[case testSingleQuotedStr]
''
'foo'
'foo\
bar'
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr())
ExpressionStmt:2(
StrExpr(foo))
ExpressionStmt:3(
StrExpr(foobar)))
[case testDoubleQuotedStr]
""
"foo"
"foo\
bar"
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr())
ExpressionStmt:2(
StrExpr(foo))
ExpressionStmt:3(
StrExpr(foobar)))
[case testRawStr]
r'x\n\''
r"x\n\""
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr(x\n\'))
ExpressionStmt:2(
StrExpr(x\n\")))
--" fix syntax highlight
[case testBytes]
b'foo'
b"foo\
bar"
br'x\n\''
[out]
MypyFile:1(
ExpressionStmt:1(
BytesExpr(foo))
ExpressionStmt:2(
BytesExpr(foobar))
ExpressionStmt:3(
BytesExpr(x\\n\\')))
[case testEscapesInStrings]
'\r\n\t\x2f\u123f'
b'\r\n\t\x2f\u123f'
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr(\u000d\u000a\u0009/\u123f))
ExpressionStmt:2(
BytesExpr(\r\n\t/\\\u123f)))
-- Note \\u in the b'...' case (\u sequence not translated)
[case testEscapedQuote]
'\''
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr(')))
--'
[case testOctalEscapes]
'\0\1\177\1234'
b'\1\476'
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr(\u0000\u0001\u007fS4))
ExpressionStmt:2(
BytesExpr(\x01>)))
[case testUnicodeLiteralInPython3]
u'foo'
[out]
MypyFile:1(
ExpressionStmt:1(
StrExpr(foo)))
[case testArrays]
a = []
a = [1, 2]
a[[1]] = a[2]
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(a)
ListExpr:1())
AssignmentStmt:2(
NameExpr(a)
ListExpr:2(
IntExpr(1)
IntExpr(2)))
AssignmentStmt:3(
IndexExpr:3(
NameExpr(a)
ListExpr:3(
IntExpr(1)))
IndexExpr:3(
NameExpr(a)
IntExpr(2))))
[case testTuples]
()
(1,)
(1, foo)
a, b = 1, (2, 3)
[out]
MypyFile:1(
ExpressionStmt:1(
TupleExpr:1())
ExpressionStmt:2(
TupleExpr:2(
IntExpr(1)))
ExpressionStmt:3(
TupleExpr:3(
IntExpr(1)
NameExpr(foo)))
AssignmentStmt:4(
TupleExpr:4(
NameExpr(a)
NameExpr(b))
TupleExpr:4(
IntExpr(1)
TupleExpr:4(
IntExpr(2)
IntExpr(3)))))
[case testSimpleFunction]
def main():
1
[out]
MypyFile:1(
FuncDef:1(
main
Block:1(
ExpressionStmt:2(
IntExpr(1)))))
[case testPass]
def f():
pass
[out]
MypyFile:1(
FuncDef:1(
f
Block:1(
PassStmt:2())))
[case testIf]
if 1:
2
[out]
MypyFile:1(
IfStmt:1(
If(
IntExpr(1))
Then(
ExpressionStmt:2(
IntExpr(2)))))
[case testIfElse]
if 1:
2
else:
3
[out]
MypyFile:1(
IfStmt:1(
If(
IntExpr(1))
Then(
ExpressionStmt:2(
IntExpr(2)))
Else(
ExpressionStmt:4(
IntExpr(3)))))
[case testIfElif]
if 1:
2
elif 3:
4
elif 5:
6
else:
7
[out]
MypyFile:1(
IfStmt:1(
If(
IntExpr(1))
Then(
ExpressionStmt:2(
IntExpr(2)))
Else(
IfStmt:3(
If(
IntExpr(3))
Then(
ExpressionStmt:4(
IntExpr(4)))
Else(
IfStmt:5(
If(
IntExpr(5))
Then(
ExpressionStmt:6(
IntExpr(6)))
Else(
ExpressionStmt:8(
IntExpr(7)))))))))
[case testWhile]
while 1:
pass
[out]
MypyFile:1(
WhileStmt:1(
IntExpr(1)
Block:1(
PassStmt:2())))
[case testReturn]
def f():
return 1
[out]
MypyFile:1(
FuncDef:1(
f
Block:1(
ReturnStmt:2(
IntExpr(1)))))
[case testReturnWithoutValue]
def f():
return
[out]
MypyFile:1(
FuncDef:1(
f
Block:1(
ReturnStmt:2())))
[case testBreak]
while 1:
break
[out]
MypyFile:1(
WhileStmt:1(
IntExpr(1)
Block:1(
BreakStmt:2())))
[case testLargeBlock]
if 1:
x = 1
while 2:
pass
y = 2
[out]
MypyFile:1(
IfStmt:1(
If(
IntExpr(1))
Then(
AssignmentStmt:2(
NameExpr(x)
IntExpr(1))
WhileStmt:3(
IntExpr(2)
Block:3(
PassStmt:4()))
AssignmentStmt:5(
NameExpr(y)
IntExpr(2)))))
[case testSimpleClass]
class A:
def f(self):
pass
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
f
Args(
Var(self))
Block:2(
PassStmt:3()))))
[case testGlobalVarWithType]
x = 0 # type: int
y = False # type: bool
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(0)
int?)
AssignmentStmt:2(
NameExpr(y)
NameExpr(False)
bool?))
[case testLocalVarWithType]
def f():
x = 0 # type: int
y = False # type: bool
a = None # type: Any
[out]
MypyFile:1(
FuncDef:1(
f
Block:1(
AssignmentStmt:2(
NameExpr(x)
IntExpr(0)
int?)
AssignmentStmt:3(
NameExpr(y)
NameExpr(False)
bool?)
AssignmentStmt:4(
NameExpr(a)
NameExpr(None)
Any?))))
[case testFunctionDefWithType]
def f(y: str) -> int:
return
class A:
def f(self, a: int, b: Any) -> x:
pass
def g(self) -> Any:
pass
[out]
MypyFile:1(
FuncDef:1(
f
Args(
Var(y))
def (y: str?) -> int?
Block:1(
ReturnStmt:2()))
ClassDef:3(
A
FuncDef:4(
f
Args(
Var(self)
Var(a)
Var(b))
def (self: Any, a: int?, b: Any?) -> x?
Block:4(
PassStmt:5()))
FuncDef:6(
g
Args(
Var(self))
def (self: Any) -> Any?
Block:6(
PassStmt:7()))))
[case testFuncWithNoneReturn]
def f() -> None:
pass
[out]
MypyFile:1(
FuncDef:1(
f
def () -> None?
Block:1(
PassStmt:2())))
[case testVarDefWithGenericType]
x = None # type: List[str]
y = None # type: Dict[int, Any]
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
NameExpr(None)
List?[str?])
AssignmentStmt:2(
NameExpr(y)
NameExpr(None)
Dict?[int?, Any?]))
[case testSignatureWithGenericTypes]
def f(y: t[Any, x]) -> a[b[c], d]:
pass
[out]
MypyFile:1(
FuncDef:1(
f
Args(
Var(y))
def (y: t?[Any?, x?]) -> a?[b?[c?], d?]
Block:1(
PassStmt:2())))
[case testParsingExpressionsWithLessAndGreaterThan]
# The operators < > can sometimes be confused with generic types.
x = a < b > c
f(x < b, y > c)
a < b > 1
x < b, y > 2
(a < b > c)
[out]
MypyFile:1(
AssignmentStmt:2(
NameExpr(x)
ComparisonExpr:2(
<
>
NameExpr(a)
NameExpr(b)
NameExpr(c)))
ExpressionStmt:3(
CallExpr:3(
NameExpr(f)
Args(
ComparisonExpr:3(
<
NameExpr(x)
NameExpr(b))
ComparisonExpr:3(
>
NameExpr(y)
NameExpr(c)))))
ExpressionStmt:4(
ComparisonExpr:4(
<
>
NameExpr(a)
NameExpr(b)
IntExpr(1)))
ExpressionStmt:5(
TupleExpr:5(
ComparisonExpr:5(
<
NameExpr(x)
NameExpr(b))
ComparisonExpr:5(
>
NameExpr(y)
IntExpr(2))))
ExpressionStmt:6(
ComparisonExpr:6(
<
>
NameExpr(a)
NameExpr(b)
NameExpr(c))))
[case testLineContinuation]
if (1 +
2):
pass
[out]
MypyFile:1(
IfStmt:1(
If(
OpExpr:1(
+
IntExpr(1)
IntExpr(2)))
Then(
PassStmt:3())))
[case testMultipleVarDef]
x, y = z # type: int, a[c]
[out]
MypyFile:1(
AssignmentStmt:1(
TupleExpr:1(
NameExpr(x)
NameExpr(y))
NameExpr(z)
Tuple[int?, a?[c?]]))
[case testMultipleVarDef2]
(xx, z, i) = 1 # type: (a[c], Any, int)
[out]
MypyFile:1(
AssignmentStmt:1(
TupleExpr:1(
NameExpr(xx)
NameExpr(z)
NameExpr(i))
IntExpr(1)
Tuple[a?[c?], Any?, int?]))
[case testMultipleVarDef3]
(xx, (z, i)) = 1 # type: (a[c], (Any, int))
[out]
MypyFile:1(
AssignmentStmt:1(
TupleExpr:1(
NameExpr(xx)
TupleExpr:1(
NameExpr(z)
NameExpr(i)))
IntExpr(1)
Tuple[a?[c?], Tuple[Any?, int?]]))
[case testAnnotateAssignmentViaSelf]
class A:
def __init__(self):
self.x = 1 # type: int
[out]
MypyFile:1(
ClassDef:1(
A
FuncDef:2(
__init__
Args(
Var(self))
Block:2(
AssignmentStmt:3(
MemberExpr:3(
NameExpr(self)
x)
IntExpr(1)
int?)))))
[case testCommentAfterTypeComment]
x = 0 # type: int # bar!
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(0)
int?))
[case testMultilineAssignmentAndAnnotations]
(x,
y) = (1,
2) # type: foo, bar
[out]
MypyFile:1(
AssignmentStmt:1(
TupleExpr:1(
NameExpr(x)
NameExpr(y))
TupleExpr:2(
IntExpr(1)
IntExpr(2))
Tuple[foo?, bar?]))
[case testWhitespaceAndCommentAnnotation]
x = 1#type:int
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(1)
int?))
[case testWhitespaceAndCommentAnnotation2]
x = 1# type: int
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(1)
int?))
[case testWhitespaceAndCommentAnnotation3]
x = 1# type : int # not recognized!
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(1)))
[case testInvalidAnnotation]
x=1 ##type: int
y=1 #.type: int
z=1 # Type: int
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
IntExpr(1))
AssignmentStmt:2(
NameExpr(y)
IntExpr(1))
AssignmentStmt:3(
NameExpr(z)
IntExpr(1)))
[case testEmptyClass]
class C:
pass
[out]
MypyFile:1(
ClassDef:1(
C
PassStmt:2()))
[case testOperatorPrecedence]
a | b ^ c
a & b << c
[out]
MypyFile:1(
ExpressionStmt:1(
OpExpr:1(
|
NameExpr(a)
OpExpr:1(
^
NameExpr(b)
NameExpr(c))))
ExpressionStmt:2(
OpExpr:2(
&
NameExpr(a)
OpExpr:2(
<<
NameExpr(b)
NameExpr(c)))))
[case testOperatorAssociativity]
1 - 2 + 3
1 << 2 << 3
[out]
MypyFile:1(
ExpressionStmt:1(
OpExpr:1(
+
OpExpr:1(
-
IntExpr(1)
IntExpr(2))
IntExpr(3)))
ExpressionStmt:2(
OpExpr:2(
<<
OpExpr:2(
<<
IntExpr(1)
IntExpr(2))
IntExpr(3))))
[case testUnaryOperators]
-2 * +3 * ~3 * 2
~3**2
[out]
MypyFile:1(
ExpressionStmt:1(
OpExpr:1(
*
OpExpr:1(
*
OpExpr:1(
*
UnaryExpr:1(
-
IntExpr(2))
UnaryExpr:1(
+
IntExpr(3)))
UnaryExpr:1(
~
IntExpr(3)))
IntExpr(2)))
ExpressionStmt:2(
UnaryExpr:2(
~
OpExpr:2(
**
IntExpr(3)
IntExpr(2)))))
[case testSingleLineBodies]
if 1: pass
while 1: pass
def f(): pass
def g() -> int: return 1
[out]
MypyFile:1(
IfStmt:1(
If(
IntExpr(1))
Then(
PassStmt:1()))
WhileStmt:2(
IntExpr(1)
Block:2(
PassStmt:2()))
FuncDef:3(
f
Block:3(
PassStmt:3()))
FuncDef:4(
g
def () -> int?
Block:4(
ReturnStmt:4(
IntExpr(1)))))
[case testForStatement]
for x in y:
pass
for x, (y, w) in z:
1
for [x, (y, w)] in z:
1
[out]
MypyFile:1(
ForStmt:1(
NameExpr(x)
NameExpr(y)
Block:1(
PassStmt:2()))
ForStmt:3(
TupleExpr:3(
NameExpr(x)
TupleExpr:3(
NameExpr(y)
NameExpr(w)))
NameExpr(z)
Block:3(
ExpressionStmt:4(
IntExpr(1))))
ForStmt:5(
TupleExpr:5(
NameExpr(x)
TupleExpr:5(
NameExpr(y)
NameExpr(w)))
NameExpr(z)
Block:5(
ExpressionStmt:6(
IntExpr(1)))))
[case testGlobalDecl]
global x
def f():
global x, y
[out]
MypyFile:1(
GlobalDecl:1(
x)
FuncDef:2(
f
Block:2(
GlobalDecl:3(
x
y))))
[case testNonlocalDecl]
def f():
def g():
nonlocal x, y
[out]
MypyFile:1(
FuncDef:1(
f
Block:1(
FuncDef:2(
g
Block:2(
NonlocalDecl:3(
x
y))))))
[case testRaiseStatement]
raise foo
[out]
MypyFile:1(
RaiseStmt:1(
NameExpr(foo)))
[case testRaiseWithoutArg]
try:
pass
except:
raise
[out]
MypyFile:1(
TryStmt:1(
Block:1(
PassStmt:2())
Block:3(
RaiseStmt:4())))
[case testRaiseFrom]
raise e from x
[out]
MypyFile:1(
RaiseStmt:1(
NameExpr(e)
NameExpr(x)))
[case testBaseclasses]
class A(B):
pass
class A(B[T], C[Any, d[x]]):
pass
[out]
MypyFile:1(
ClassDef:1(
A
BaseTypeExpr(
NameExpr(B))
PassStmt:2())
ClassDef:3(
A
BaseTypeExpr(
IndexExpr:3(
NameExpr(B)
NameExpr(T))
IndexExpr:3(
NameExpr(C)
TupleExpr:3(
NameExpr(Any)
IndexExpr:3(
NameExpr(d)
NameExpr(x)))))
PassStmt:4()))
[case testIsNot]
x is not y
[out]
MypyFile:1(
ExpressionStmt:1(
ComparisonExpr:1(
is not
NameExpr(x)
NameExpr(y))))
[case testNotIn]
x not in y
not x not in y
x not in y | z
[out]
MypyFile:1(
ExpressionStmt:1(
ComparisonExpr:1(
not in
NameExpr(x)
NameExpr(y)))
ExpressionStmt:2(
UnaryExpr:2(
not
ComparisonExpr:2(
not in
NameExpr(x)
NameExpr(y))))
ExpressionStmt:3(
ComparisonExpr:3(
not in
NameExpr(x)
OpExpr:3(
|
NameExpr(y)
NameExpr(z)))))
[case testNotAsBinaryOp]
x not y # E: invalid syntax
[out]
[case testNotIs]
x not is y # E: invalid syntax
[out]
[case testBinaryNegAsBinaryOp]
1 ~ 2 # E: invalid syntax
[out]
[case testDictionaryExpression]
{}
{1:x}
{1:x, 2 or 1:2 and 3}
[out]
MypyFile:1(
ExpressionStmt:1(
DictExpr:1())
ExpressionStmt:2(
DictExpr:2(
IntExpr(1)
NameExpr(x)))
ExpressionStmt:3(
DictExpr:3(
IntExpr(1)
NameExpr(x)
OpExpr:3(
or
IntExpr(2)
IntExpr(1))
OpExpr:3(
and
IntExpr(2)
IntExpr(3)))))
[case testImport]
import x
import y.z.foo, __foo__.bar
[out]
MypyFile:1(
Import:1(x)
Import:2(y.z.foo, __foo__.bar))
[case testVariableTypeWithQualifiedName]
x = None # type: x.y
[out]
MypyFile:1(
AssignmentStmt:1(
NameExpr(x)
NameExpr(None)
x.y?))
[case testTypeInSignatureWithQualifiedName]
def f() -> x.y[a.b.c]: pass
[out]
MypyFile:1(
FuncDef:1(
f
def () -> x.y?[a.b.c?]
Block:1(
PassStmt:1())))
[case testImportFrom]
from m import x
from m.n import x, y, z