84 lines
2.4 KiB
Cython
84 lines
2.4 KiB
Cython
# cython: profile=False
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from cymem.cymem cimport Pool
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from thinc.extra.search cimport Beam
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from thinc.typedefs cimport class_t, weight_t
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cdef struct TestState:
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int length
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int x
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Py_UNICODE* string
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cdef int transition(void* dest, void* src, class_t clas, void* extra_args) except -1:
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dest_state = <TestState*>dest
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src_state = <TestState*>src
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dest_state.length = src_state.length
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dest_state.x = src_state.x
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dest_state.x += clas
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if extra_args != NULL:
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dest_state.string = <Py_UNICODE*>extra_args
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else:
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dest_state.string = src_state.string
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cdef void* initialize(Pool mem, int n, void* extra_args) except NULL:
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state = <TestState*>mem.alloc(1, sizeof(TestState))
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state.length = n
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state.x = 1
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if extra_args == NULL:
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state.string = 'default'
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else:
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state.string = <Py_UNICODE*>extra_args
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return state
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cdef int destroy(Pool mem, void* state, void* extra_args) except -1:
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state = <TestState*>state
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mem.free(state)
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def test_init(nr_class, beam_width):
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b = Beam(nr_class, beam_width)
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assert b.size == 1
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assert b.width == beam_width
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assert b.nr_class == nr_class
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def test_initialize(nr_class, beam_width, length):
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b = Beam(nr_class, beam_width)
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b.initialize(initialize, destroy, length, NULL)
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for i in range(b.width):
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s = <TestState*>b.at(i)
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assert s.length == length, s.length
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assert s.string == 'default'
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def test_initialize_extra(nr_class, beam_width, length, unicode extra):
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b = Beam(nr_class, beam_width)
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b.initialize(initialize, destroy, length, <void*><Py_UNICODE*>extra)
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for i in range(b.width):
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s = <TestState*>b.at(i)
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assert s.length == length
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def test_transition(nr_class=3, beam_width=6, length=3):
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b = Beam(nr_class, beam_width)
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b.initialize(initialize, destroy, length, NULL)
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b.set_cell(0, 2, 30, True, 0)
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b.set_cell(0, 1, 42, False, 0)
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b.advance(transition, NULL, NULL)
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assert b.size == 1, b.size
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assert b.score == 30, b.score
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s = <TestState*>b.at(0)
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assert s.x == 3
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assert b._states[0].score == 30, b._states[0].score
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b.set_cell(0, 1, 10, True, 0)
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b.set_cell(0, 2, 20, True, 0)
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b.advance(transition, NULL, NULL)
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assert b._states[0].score == 50, b._states[0].score
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assert b._states[1].score == 40
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s = <TestState*>b.at(0)
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assert s.x == 5
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