23 lines
615 B
Python
23 lines
615 B
Python
"""
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Implementation of some CFFI functions
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"""
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from numba.core.imputils import Registry
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from numba.core import types
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from numba.np import arrayobj
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registry = Registry('cffiimpl')
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@registry.lower('ffi.from_buffer', types.Buffer)
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def from_buffer(context, builder, sig, args):
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assert len(sig.args) == 1
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assert len(args) == 1
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[fromty] = sig.args
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[val] = args
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# Type inference should have prevented passing a buffer from an
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# array to a pointer of the wrong type
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assert fromty.dtype == sig.return_type.dtype
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ary = arrayobj.make_array(fromty)(context, builder, val)
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return ary.data
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