def test_transform_try_except_with_multiple_exception_handlers():
_assert_transform(
cc.try_(
[cc.ret(cc.ref("x"))],
handlers=[
cc.except_(cc.ref("AssertionError"), None, [cc.ret(cc.ref("y"))]),
cc.except_(cc.ref("Exception"), None, [cc.ret(cc.ref("z"))]),
],
),
"""
try {
return x;
} catch ($exception0) {
if ($exception0.$nopeException === $nope.undefined) {
throw $exception0;
} else {
if ($nope.builtins.isinstance($exception0.$nopeException, AssertionError)) {
return y;
} else {
if ($nope.builtins.isinstance($exception0.$nopeException, Exception)) {
return z;
} else {
throw $exception0;
}
}
}
}
""",
)
def test_transform_raise_without_exception_value():
_assert_transform(
cc.try_(
[cc.ret(cc.ref("x"))],
handlers=[
cc.except_(cc.ref("AssertionError"), cc.ref("error"), [cc.raise_()]),
],
),
"""
try {
return x;
} catch ($exception0) {
if ($exception0.$nopeException === $nope.undefined) {
throw $exception0;
} else {
if ($nope.builtins.isinstance($exception0.$nopeException, AssertionError)) {
var error = $exception0.$nopeException;
throw $exception0;
} else {
throw $exception0;
}
}
}
""",
)
def test_transform_try_with_empty_finally_body():
_assert_transform(
cc.try_(
[cc.ret(cc.ref("x"))],
finally_body=[],
),
"""
return x;
""",
)
def except_handler_is_converted_to_catch_for_nope_exceptions(self):
node = cc.try_(
[],
handlers=[cc.except_(None, None, [cc.expression_statement(cc.ref("y"))])]
)
expected = """try {
} catch (__Nope.Internals.@__NopeException __exception) {
y;
}
"""
assert_equal(expected, cs.dumps(transform(node)))
def try_with_finally_is_converted_to_try_with_finally(self):
node = cc.try_(
[cc.ret(cc.ref("x"))],
finally_body=[cc.expression_statement(cc.ref("y"))]
)
expected = """try {
return x;
} finally {
y;
}
"""
assert_equal(expected, cs.dumps(transform(node)))
def test_statements_in_bodies_are_transformed(self):
_assert_transform(
nodes.try_(
[nodes.ret(nodes.ref("x"))],
handlers=[nodes.except_(nodes.ref("Exception"), nodes.ref("error"), [nodes.ref("y")])],
finally_body=[nodes.ret(nodes.ref("z"))],
),
cc.try_(
[cc.ret(cc.ref("x"))],
handlers=[cc.except_(cc.ref("Exception"), cc.ref("error"), [cc.ref("y")])],
finally_body=[cc.ret(cc.ref("z"))],
),
)
def test_transform_try_finally():
_assert_transform(
cc.try_(
[cc.ret(cc.ref("x"))],
finally_body=[cc.ret(cc.ref("y"))],
),
"""
try {
return x;
} finally {
return y;
}
""",
)
def type_of_nope_exception_is_checked_if_handler_has_exception_type(self):
node = cc.try_(
[],
handlers=[
cc.except_(cc.ref("Exception"), None, [
cc.ret(cc.ref("value"))
])
]
)
expected = """try {
} catch (__Nope.Internals.@__NopeException __exception) {
if ((__Nope.Builtins.@isinstance(__exception.__Value, Exception)).__Value) {
return value;
} else {
throw;
}
}
"""
assert_equal(expected, cs.dumps(transform(node)))
def nope_exception_is_extracted_from_dotnet_exception_if_exception_is_named_in_catch(self):
node = cc.try_(
[],
handlers=[
cc.except_(cc.ref("Exception"), cc.ref("error"), [
cc.ret(cc.ref("error"))
])
]
)
expected = """try {
} catch (__Nope.Internals.@__NopeException __exception) {
if ((__Nope.Builtins.@isinstance(__exception.__Value, Exception)).__Value) {
error = __exception.__Value;
return error;
} else {
throw;
}
}
"""
assert_equal(expected, cs.dumps(transform(node)))
def handlers_are_converted_to_if_statements_in_order(self):
node = cc.try_(
[],
handlers=[
cc.except_(cc.ref("AssertionError"), None, []),
cc.except_(cc.ref("Exception"), None, []),
]
)
expected = """try {
} catch (__Nope.Internals.@__NopeException __exception) {
if ((__Nope.Builtins.@isinstance(__exception.__Value, AssertionError)).__Value) {
} else {
if ((__Nope.Builtins.@isinstance(__exception.__Value, Exception)).__Value) {
} else {
throw;
}
}
}
"""
assert_equal(expected, cs.dumps(transform(node)))
def test_transform_try_except_with_no_name():
_assert_transform(
cc.try_(
[cc.ret(cc.ref("x"))],
handlers=[
cc.except_(None, None, [cc.ret(cc.ref("y"))]),
],
),
"""
try {
return x;
} catch ($exception0) {
if ($exception0.$nopeException === $nope.undefined) {
throw $exception0;
} else {
if ($nope.builtins.isinstance($exception0.$nopeException, $nope.builtins.Exception)) {
return y;
} else {
throw $exception0;
}
}
}
""",
)