// Test the goin and goout typemaps for directors. %module(directors="1") go_director_inout %include <std_string.i> %{ #include <string> %} %inline %{ struct MyStruct { std::string str; }; struct RetStruct { std::string str; }; %} %go_import("encoding/json") %insert(go_header) %{ type GoRetStruct struct { Str string } %} %typemap(gotype) RetStruct "GoRetStruct" %typemap(imtype) RetStruct "string" %typemap(goin) RetStruct %{ $result = $input.Str %} %typemap(in) RetStruct %{ $result.str.assign($input.p, $input.n); %} %typemap(out,fragment="AllocateString") RetStruct %{ $result = Swig_AllocateString($1.str.data(), $1.str.length()); %} %typemap(goout,fragment="CopyString") RetStruct %{ $result = GoRetStruct{Str: swigCopyString($input)} %} %typemap(godirectorout) RetStruct %{ $result = $input.Str %} %typemap(directorout) RetStruct %{ $result.str.assign($input.p, $input.n); %} %typemap(godirectorin) RetStruct %{ %} %typemap(gotype) MyStruct "map[string]interface{}" %typemap(imtype) MyStruct "string" %typemap(goin) MyStruct %{ if b, err := json.Marshal($input); err != nil { panic(err) } else { $result = string(b) } %} %typemap(directorin,fragment="AllocateString") MyStruct %{ $input = Swig_AllocateString($1.str.data(), $1.str.length()); %} %typemap(godirectorin,fragment="CopyString") MyStruct %{ if err := json.Unmarshal([]byte(swigCopyString($input)), &$result); err != nil { panic(err) } %} %typemap(out,fragment="AllocateString") MyStruct %{ $result = Swig_AllocateString($1.str.data(), $1.str.length()); %} %typemap(goout,fragment="CopyString") MyStruct %{ $result = swigCopyString($input) %} %typemap(in) MyStruct %{ $1.str.assign($input.p, $input.n); %} %typemap(directorin) std::string & (_gostring_ temp) { $input = &temp; temp.p = (char *) $1.data(); temp.n = $1.size(); } %typemap(directorargout) std::string & { _gostring_ *tmp = $input; $1.assign(tmp->p, tmp->p + tmp->n); } %inline %{ // Helper functions for converting string arrays #include <stdlib.h> void *alloc_ptr_array(unsigned int len) { return calloc(len, sizeof(void *)); } void set_ptr_array(void *ain, unsigned int pos, void *val) { void **a = (void **) ain; a[pos] = val; } void *get_ptr_array(void *ain, unsigned int pos) { void **a = (void **) ain; return a[pos]; } void free_ptr_array(void *ain) { void **a = (void **) ain; unsigned int i; if (!a) return; for (i = 0; a[i]; i++) { free(a[i]); } free(a); } char *uintptr_to_string(void *in) { return (char *) in; } void *string_to_uintptr(char *in) { return strdup(in); } %} // These typemaps convert between an array of strings in Go and a // const char** that is NULL terminated in C++. %typemap(gotype) (const char * const *) "[]string" %typemap(imtype) (const char * const *) "uintptr" %typemap(goin) (const char * const *) { if $input == nil || len($input) == 0 { $result = 0 } else { $result = Alloc_ptr_array(uint(len($input) + 1)) defer func() { Free_ptr_array($result) }() var i uint for i = 0; i < uint(len($input)); i++ { Set_ptr_array($result, i, String_to_uintptr($input[i])) } } } %typemap(in) (const char * const *) { $1 = (char **) $input; } %typemap(godirectorin) (const char * const *) { if ($input == 0) { $result = nil } else { var i uint for i = 0; ; i++ { var v uintptr = Get_ptr_array($input, i) if v == 0 { break } } if i == 0 { $result = nil } else { $result = make([]string, i) for i = 0; ; i++ { var v uintptr = Get_ptr_array($input, i) if v == 0 { break } $result[i] = Uintptr_to_string(v) } } } } %feature("director") MyClass; %inline %{ class MyClass { public: virtual ~MyClass() {} virtual RetStruct Adjust(MyStruct s) { RetStruct r; r.str = s.str; return r; } void CallS4(const char * const *strarray); virtual void S1(std::string s); virtual void S2(std::string& s) = 0; virtual void S3(std::string* s) = 0; virtual void S4(const char * const *strarray); virtual int S5(const std::string* s); }; void MyClass::S1(std::string s) { throw "Base S1 called!"; } void MyClass::S4(const char * const *strarray) { throw "Base S4 called!"; } void MyClass::CallS4(const char * const *strarray) { this->S4(strarray); } int MyClass::S5(const std::string* s) { if (s) { return (*s)[0]; } else { return 0; } } %}
Generated by dwww version 1.15 on Tue Jul 2 00:49:05 CEST 2024.