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https://github.com/janet-lang/janet
synced 2024-06-21 12:43:15 +00:00
3f27d78ab5
Add support for integer return and floating point return variants, as well as arguments on the stack. Start flushing out struct arguments. Still needed: - structs (packed and unpacked) - complex numbers - long doubles - MASM alternative for windows (you can technically use sysv abi on windows) - more calling conventions.
50 lines
1.7 KiB
Plaintext
50 lines
1.7 KiB
Plaintext
(def native-loc "ffitest/so.so")
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(def native-source-loc "ffitest/so.c")
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(os/execute ["cc" native-source-loc "-shared" "-o" native-loc] :px)
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(def module (raw-native native-loc))
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(def int-fn-sig (native-signature :default :int :int :int))
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(def int-fn-pointer (native-lookup module "int_fn"))
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(defn int-fn
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[x y]
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(native-call int-fn-pointer int-fn-sig x y))
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(def double-fn-sig (native-signature :default :double :double :double :double))
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(def double-fn-pointer (native-lookup module "double_fn"))
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(defn double-fn
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[x y z]
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(native-call double-fn-pointer double-fn-sig x y z))
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(def double-many-sig (native-signature :default :double :double :double :double :double :double :double))
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(def double-many-pointer (native-lookup module "double_many"))
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(defn double-many
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[x y z w a b]
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(native-call double-many-pointer double-many-sig x y z w a b))
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(def double-lots-sig (native-signature :default :double
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:double :double :double :double :double
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:double :double :double :double :double))
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(def double-lots-pointer (native-lookup module "double_lots"))
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(defn double-lots
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[a b c d e f g h i j]
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(native-call double-lots-pointer double-lots-sig a b c d e f g h i j))
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(def float-fn-sig (native-signature :default :double :float :float :float))
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(def float-fn-pointer (native-lookup module "float_fn"))
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(defn float-fn
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[x y z]
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(native-call float-fn-pointer float-fn-sig x y z))
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#
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# Call functions
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#
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(assert (= 60 (int-fn 10 20)))
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(assert (= 42 (double-fn 1.5 2.5 3.5)))
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(assert (= 21 (double-many 1 2 3 4 5 6)))
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(assert (= 19 (double-lots 1 2 3 4 5 6 7 8 9 10)))
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(assert (= 204 (float-fn 8 4 17)))
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(print "Done.")
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