hy/tests/compilers/test_ast.py

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# Copyright (c) 2013 Paul Tagliamonte <paultag@debian.org>
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#
# 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.
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from hy.compiler import hy_compile, HyCompileError
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from hy.lex import tokenize
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import ast
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import sys
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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 HyCompileError:
pass
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def test_ast_bad_type():
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"Make sure AST breakage can happen"
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try:
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hy_compile("foo")
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assert True is False
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except HyCompileError:
pass
def test_ast_bad_if():
"Make sure AST can't compile invalid if"
cant_compile("(if)")
cant_compile("(if foobar)")
cant_compile("(if 1 2 3 4 5)")
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():
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"Make sure AST can't compile invalid while"
cant_compile("(while)")
cant_compile("(while (true))")
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def test_ast_good_do():
"Make sure AST can compile valid do"
hy_compile(tokenize("(do 1)"))
def test_ast_bad_do():
"Make sure AST can't compile invalid do"
cant_compile("(do)")
def test_ast_good_throw():
"Make sure AST can compile valid throw"
hy_compile(tokenize("(throw 1)"))
def test_ast_bad_throw():
"Make sure AST can't compile invalid throw"
cant_compile("(throw)")
def test_ast_good_try():
"Make sure AST can compile valid try"
hy_compile(tokenize("(try 1)"))
def test_ast_bad_try():
"Make sure AST can't compile invalid try"
cant_compile("(try)")
def test_ast_good_catch():
"Make sure AST can compile valid catch"
hy_compile(tokenize("(catch 1 2)"))
def test_ast_bad_catch():
"Make sure AST can't compile invalid catch"
cant_compile("(catch)")
cant_compile("(catch 1)")
def test_ast_good_assert():
"Make sure AST can compile valid assert"
hy_compile(tokenize("(assert 1)"))
def test_ast_bad_assert():
"Make sure AST can't compile invalid assert"
cant_compile("(assert)")
cant_compile("(assert 1 2)")
def test_ast_good_lambda():
"Make sure AST can compile valid lambda"
hy_compile(tokenize("(lambda [] 1)"))
def test_ast_bad_lambda():
"Make sure AST can't compile invalid lambda"
cant_compile("(lambda)")
cant_compile("(lambda [])")
def test_ast_good_pass():
"Make sure AST can compile valid pass"
hy_compile(tokenize("(pass)"))
def test_ast_bad_pass():
"Make sure AST can't compile invalid pass"
cant_compile("(pass 1)")
cant_compile("(pass 1 2)")
def test_ast_good_yield():
"Make sure AST can compile valid yield"
hy_compile(tokenize("(yield 1)"))
def test_ast_bad_yield():
"Make sure AST can't compile invalid yield"
cant_compile("(yield)")
cant_compile("(yield 1 2)")
def test_ast_good_import_from():
"Make sure AST can compile valid import-from"
hy_compile(tokenize("(import-from x y)"))
def test_ast_bad_import_from():
"Make sure AST can't compile invalid import-from"
cant_compile("(import-from)")
def test_ast_good_get():
"Make sure AST can compile valid get"
hy_compile(tokenize("(get x y)"))
def test_ast_bad_get():
"Make sure AST can't compile invalid get"
cant_compile("(get)")
cant_compile("(get 1)")
cant_compile("(get 1 2 3)")
def test_ast_good_slice():
"Make sure AST can compile valid slice"
hy_compile(tokenize("(slice x)"))
hy_compile(tokenize("(slice x y)"))
hy_compile(tokenize("(slice x y z)"))
def test_ast_bad_slice():
"Make sure AST can't compile invalid slice"
cant_compile("(slice)")
cant_compile("(slice 1 2 3 4)")
def test_ast_good_assoc():
"Make sure AST can compile valid assoc"
hy_compile(tokenize("(assoc x y z)"))
def test_ast_bad_assoc():
"Make sure AST can't compile invalid assoc"
cant_compile("(assoc)")
cant_compile("(assoc 1)")
cant_compile("(assoc 1 2)")
cant_compile("(assoc 1 2 3 4)")
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def test_ast_valid_while():
"Make sure AST can't compile invalid while"
hy_compile(tokenize("(while foo bar)"))
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def test_ast_expression_basics():
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""" Ensure basic AST expression conversion works. """
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code = hy_compile(tokenize("(foo bar)")).body[0]
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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,
))
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_ast_spotcheck("value.func.id", code, tree)
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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
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def test_ast_non_decoratable():
""" Ensure decorating garbage breaks """
cant_compile("(decorate-with (foo) (* x x))")
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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 HyCompileError:
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pass
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def test_ast_print():
code = hy_compile(tokenize("(print \"foo\")")).body[0]
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if sys.version_info[0] >= 3:
assert type(code.value) == ast.Call
return
assert type(code) == ast.Print
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def test_ast_tuple():
""" Ensure tuples work. """
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code = hy_compile(tokenize("(, 1 2 3)")).body[0].value
assert type(code) == ast.Tuple