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Don't parse large floats as symbols

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This commit is contained in:
Kodi Arfer 2017-11-11 15:14:28 -08:00
parent 97987d739c
commit a26480a81b
2 changed files with 7 additions and 1 deletions
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2
hy/models.py
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@ -179,7 +179,7 @@ if not PY3: # do not add long on python3
def check_inf_nan_cap(arg, value): def check_inf_nan_cap(arg, value):
if isinstance(arg, string_types): if isinstance(arg, string_types):
if isinf(value) and "Inf" not in arg: if isinf(value) and "i" in arg.lower() and "Inf" not in arg:
raise ValueError('Inf must be capitalized as "Inf"') raise ValueError('Inf must be capitalized as "Inf"')
if isnan(value) and "NaN" not in arg: if isnan(value) and "NaN" not in arg:
raise ValueError('NaN must be capitalized as "NaN"') raise ValueError('NaN must be capitalized as "NaN"')

6
tests/test_lex.py
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@ -103,6 +103,12 @@ def test_lex_expression_float():
assert objs == [HyExpression([HySymbol("foo"), HyFloat(1.e7)])] assert objs == [HyExpression([HySymbol("foo"), HyFloat(1.e7)])]
def test_lex_big_float():
# https://github.com/hylang/hy/issues/1448
assert tokenize("1e900") == [HyFloat(1e900)]
assert tokenize("1e900-1e900j") == [HyComplex(1e900, -1e900)]
def test_lex_nan_and_inf(): def test_lex_nan_and_inf():
assert isnan(tokenize("NaN")[0]) assert isnan(tokenize("NaN")[0])