mirror of https://github.com/m-labs/artiq
29 lines
965 B
Python
29 lines
965 B
Python
"""
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:class:`IntMonomorphizer` collapses the integer literals of undetermined
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width to 32 bits, assuming they fit into 32 bits, or 64 bits if they
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do not.
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"""
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from pythonparser import algorithm, diagnostic
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from .. import types, builtins, asttyped
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class IntMonomorphizer(algorithm.Visitor):
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def __init__(self, engine):
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self.engine = engine
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def visit_NumT(self, node):
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if builtins.is_int(node.type):
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if types.is_var(node.type["width"]):
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if -2**31 < node.n < 2**31-1:
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width = 32
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elif -2**63 < node.n < 2**63-1:
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width = 64
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else:
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diag = diagnostic.Diagnostic("error",
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"integer literal out of range for a signed 64-bit value", {},
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node.loc)
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self.engine.process(diag)
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return
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node.type["width"].unify(types.TValue(width))
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