diff options
-rw-r--r-- | CHANGES.current | 3 | ||||
-rw-r--r-- | Examples/test-suite/argcargvtest.i | 2 | ||||
-rw-r--r-- | Examples/test-suite/go/argcargvtest_runme.go | 22 | ||||
-rw-r--r-- | Lib/go/argcargv.i | 64 |
4 files changed, 90 insertions, 1 deletions
diff --git a/CHANGES.current b/CHANGES.current index c79b076ec..ed80e145e 100644 --- a/CHANGES.current +++ b/CHANGES.current @@ -7,6 +7,9 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/ Version 4.2.0 (in progress) =========================== +2023-04-20: erezgeva + [Go] #2533 Implement argcargv.i library for Go. + 2023-04-19: davidcl [Scilab] Add support for Scilab 2023.x. Introduce a `-gatewayxml6` options to generate an XML with full diff --git a/Examples/test-suite/argcargvtest.i b/Examples/test-suite/argcargvtest.i index 5711441d9..e14e370d8 100644 --- a/Examples/test-suite/argcargvtest.i +++ b/Examples/test-suite/argcargvtest.i @@ -1,6 +1,6 @@ %module argcargvtest -#if !defined(SWIGCSHARP) && !defined(SWIGD) && !defined(SWIGGO) && !defined(SWIGGUILE) && !defined(SWIGJAVA) && !defined(SWIGJAVASCRIPT) && !defined(SWIGMZSCHEME) && !defined(SWIGOCAML) && !defined(SWIGR) && !defined(SWIGSCILAB) +#if !defined(SWIGCSHARP) && !defined(SWIGD) && !defined(SWIGGUILE) && !defined(SWIGJAVA) && !defined(SWIGJAVASCRIPT) && !defined(SWIGMZSCHEME) && !defined(SWIGOCAML) && !defined(SWIGR) && !defined(SWIGSCILAB) %include <argcargv.i> %apply (int ARGC, char **ARGV) { (size_t argc, const char **argv) } diff --git a/Examples/test-suite/go/argcargvtest_runme.go b/Examples/test-suite/go/argcargvtest_runme.go new file mode 100644 index 000000000..3da3d76dd --- /dev/null +++ b/Examples/test-suite/go/argcargvtest_runme.go @@ -0,0 +1,22 @@ +package main + +import wrap "swigtests/argcargvtest" + +func main() { + largs := []string{"hi", "hola", "hello"} + if ri := wrap.Mainc(largs); ri != 3 { + panic(ri) + } + + targs := []string{"hi", "hola"} + if rs := wrap.Mainv(targs, 1); rs != "hola" { + panic(rs) + } + +// For dynamically typed languages we test this throws an exception or similar +// at runtime, but for Go this doesn't even compile (but we can't easily +// test for that here). +// wrap.Mainv("hello", 1) + + wrap.InitializeApp(largs) +} diff --git a/Lib/go/argcargv.i b/Lib/go/argcargv.i new file mode 100644 index 000000000..437832bb2 --- /dev/null +++ b/Lib/go/argcargv.i @@ -0,0 +1,64 @@ +/* ------------------------------------------------------------ + * SWIG library containing argc and argv multi-argument typemaps + * ------------------------------------------------------------ */ + +%typemap(gotype) (int ARGC, char **ARGV) "[]string" + +%insert(go_wrapper) %{ +//export cgo_swig_get_string_slice_idx +func cgo_swig_get_string_slice_idx(s []string, i C.swig_intgo) string { + return s[i] +} +%} + +%{ +extern +#ifdef __cplusplus + "C" +#endif +_gostring_ cgo_swig_get_string_slice_idx(_goslice_ s, intgo i); +%} + +%typemap(in) (int ARGC, char **ARGV) { + $1_ltype len = ($1_ltype)$input.len; + size_t aralloc = (size_t)((len + 1) * sizeof(char *)); + if (len <= 0 || $input.array == NULL) { + _swig_gopanic("array must contain at least 1 element"); + } + $2 = ($2_ltype) Swig_malloc((int)aralloc); + if ($2 == NULL) { + _swig_gopanic("fail allocating memory for array"); + } + memset($2, 0, aralloc); + $1 = len; + { + $1_ltype i; + for (i = 0; i < len; i++) { + char *p; + _gostring_ st = cgo_swig_get_string_slice_idx($input, (intgo)i); + if (st.n <= 0) { + _swig_gopanic("string length must be positive"); + } + p = (char *) Swig_malloc((int)(st.n + 1)); + if (p == NULL) { + _swig_gopanic("fail allocating memory for a string"); + } + memcpy(p, st.p, st.n); + p[st.n] = 0; + $2[i] = p; + } + $2[i] = NULL; + } +} + +%typemap(freearg) (int ARGC, char **ARGV) { + if ($2 != NULL) { + $1_ltype i; + for (i = 0; i < $1; i++) { + if ($2[i] != NULL) { + Swig_free((void *)$2[i]); + } + } + Swig_free((void *)$2); + } +} |