hy/tests/compilers/test_ast.py
Julien Danjou 3e9a2178c5 Add support for unary operators (not, ~)
Signed-off-by: Julien Danjou <julien@danjou.info>
2013-04-06 10:38:41 +02:00

173 lines
4.6 KiB
Python

# Copyright (c) 2013 Paul Tagliamonte <paultag@debian.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
from hy.compiler import hy_compile, HyCompileError
from hy.lex import tokenize
import ast
import sys
def _ast_spotcheck(arg, root, secondary):
if "." in arg:
local, full = arg.split(".", 1)
return _ast_spotcheck(full,
getattr(root, local),
getattr(secondary, local))
assert getattr(root, arg) == getattr(secondary, arg)
def cant_compile(expr):
try:
hy_compile(tokenize(expr))
assert False
except TypeError:
pass
def test_ast_bad_type():
"Make sure AST breakage can happen"
try:
hy_compile("foo")
assert True is False
except HyCompileError:
pass
def test_ast_bad_if_0_arg():
"Make sure AST can't compile invalid if"
try:
hy_compile(tokenize("(if)"))
assert False
except TypeError:
pass
def test_ast_bad_if_1_arg():
"Make sure AST can't compile invalid if"
try:
hy_compile(tokenize("(if foobar)"))
assert False
except TypeError:
pass
def test_ast_valid_if():
"Make sure AST can't compile invalid if"
hy_compile(tokenize("(if foo bar)"))
def test_ast_valid_unary_op():
"Make sure AST can compile valid unary operator"
hy_compile(tokenize("(not 2)"))
hy_compile(tokenize("(~ 1)"))
def test_ast_invalid_unary_op():
"Make sure AST can't compile invalid unary operator"
cant_compile("(not 2 3 4)")
cant_compile("(not)")
cant_compile("(not 2 3 4)")
cant_compile("(~ 2 2 3 4)")
cant_compile("(~)")
def test_ast_bad_while_0_arg():
"Make sure AST can't compile invalid while"
try:
hy_compile(tokenize("(while)"))
assert False
except TypeError:
pass
def test_ast_bad_while_1_arg():
"Make sure AST can't compile invalid while"
try:
hy_compile(tokenize("(while (true))"))
assert False
except TypeError:
pass
def test_ast_valid_while():
"Make sure AST can't compile invalid while"
hy_compile(tokenize("(while foo bar)"))
def test_ast_expression_basics():
""" Ensure basic AST expression conversion works. """
code = hy_compile(tokenize("(foo bar)")).body[0]
tree = ast.Expr(value=ast.Call(
func=ast.Name(
id="foo",
ctx=ast.Load(),
),
args=[
ast.Name(id="bar", ctx=ast.Load())
],
keywords=[],
starargs=None,
kwargs=None,
))
_ast_spotcheck("value.func.id", code, tree)
def test_ast_anon_fns_basics():
""" Ensure anon fns work. """
code = hy_compile(tokenize("(fn (x) (* x x))")).body[0]
assert type(code) == ast.FunctionDef
def test_ast_non_decoratable():
""" Ensure decorating garbage breaks """
try:
hy_compile(tokenize("(decorate-with (foo) (* x x))"))
assert True is False
except TypeError:
pass
def test_ast_non_kwapplyable():
""" Ensure kwapply breaks """
code = tokenize("(kwapply foo bar)")
code[0][2] = None
try:
hy_compile(code)
assert True is False
except TypeError:
pass
def test_ast_print():
code = hy_compile(tokenize("(print \"foo\")")).body[0]
if sys.version_info[0] >= 3:
assert type(code.value) == ast.Call
return
assert type(code) == ast.Print
def test_ast_tuple():
""" Ensure tuples work. """
code = hy_compile(tokenize("(, 1 2 3)")).body[0].value
assert type(code) == ast.Tuple