forked from M-Labs/artiq
Inferencer: range() does not accept a float argument.
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f53a5ff202
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b28a874274
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@ -596,7 +596,7 @@ class Inferencer(algorithm.Visitor):
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self._unify(arg.type, range_tvar,
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arg.loc, None)
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if builtins.is_numeric(arg.type):
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if builtins.is_int(arg.type):
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pass
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elif types.is_var(arg.type):
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pass # undetermined yet
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@ -606,7 +606,7 @@ class Inferencer(algorithm.Visitor):
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{"type": types.TypePrinter().name(arg.type)},
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arg.loc)
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diag = diagnostic.Diagnostic("error",
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"an argument of range() must be of a numeric type", {},
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"an argument of range() must be of an integer type", {},
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node.func.loc, notes=[note])
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self.engine.process(diag)
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else:
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@ -616,15 +616,16 @@ class Inferencer(algorithm.Visitor):
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valid_form("len(x:'a) -> int(width='b) where 'a is iterable"),
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]
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# TODO: should be ssize_t-sized
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self._unify(node.type, builtins.TInt(types.TValue(32)),
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node.loc, None)
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if len(node.args) == 1 and len(node.keywords) == 0:
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arg, = node.args
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if builtins.is_iterable(arg.type):
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pass
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if builtins.is_range(arg.type):
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self._unify(node.type, builtins.get_iterable_elt(arg.type),
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node.loc, None)
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elif builtins.is_list(arg.type):
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# TODO: should be ssize_t-sized
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self._unify(node.type, builtins.TInt(types.TValue(32)),
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node.loc, None)
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elif types.is_var(arg.type):
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pass # undetermined yet
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else:
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