1 | #!/usr/bin/env bash
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2 | #
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3 | # Can we use SWIG to wrap pure C++ in Python extension modules?
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4 | #
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5 | # This might be hard for our garbage collected types.
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6 | #
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7 | # Usage:
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8 | # demo/swig.sh <function name>
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9 |
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10 | set -o nounset
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11 | set -o pipefail
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12 | set -o errexit
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13 |
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14 | install() {
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15 | sudo apt-get install swig
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16 | }
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17 |
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18 | # https://www.swig.org/Doc3.0/Python.html#Python
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19 |
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20 | example() {
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21 | ### Translate, compile, and run
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22 |
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23 | swig -python -c++ demo/swig/example.i
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24 |
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25 | # Two Output Files
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26 | wc -l demo/swig/{example.py,example_wrap.*}
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27 | ls -l demo/swig/
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28 |
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29 | set -x
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30 | python2 demo/swig/setup.py build_ext --inplace
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31 |
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32 | python2 -c '
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33 | import _example
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34 | print(dir(_example))
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35 | print("fact(5) = %d" % _example.fact(5))
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36 | print("add(3, 4) = %d" % _example.add(3, 4))
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37 | print(_example.send)
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38 |
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39 | # TODO: convert Str* to Python
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40 | # print(_example.send(42, "my payload"))
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41 |
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42 | # Generates TypeError for you
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43 | # print("add(x, 4) = %d" % _example.add("3", 4))
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44 | '
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45 |
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46 | }
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47 |
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48 | clean-temp() {
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49 | # Don't check in generated files
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50 | rm -v demo/swig/{example.py,example_wrap.cxx}
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51 | }
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52 |
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53 | # Hm doesn't work?
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54 | qsn() {
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55 | #swig -o _tmp/qsn -python cpp/qsn.i
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56 | swig -python -c++ cpp/qsn.i
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57 | ls -l cpp/qsn*
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58 | #ls -l _tmp/qsn
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59 | }
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60 |
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61 | "$@"
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