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[Go] Add %go_import directive.

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This commit is contained in:
Ian Lance Taylor 2014-01-21 11:27:09 -08:00
commit f2dc3a9c1f
5 changed files with 84 additions and 19 deletions
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45
Source/Modules/go.cxx
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@ -45,6 +45,7 @@ class GO:public Language {
File *f_c_init;
File *f_c_directors;
File *f_c_directors_h;
File *f_go_imports;
File *f_go_runtime;
File *f_go_header;
File *f_go_wrappers;
@ -84,6 +85,9 @@ class GO:public Language {
// A hash table of classes which were defined. The index is a Go
// type name.
Hash *defined_types;
// A hash table of all the go_imports already imported. The index is a full
// import name e.g. '"runtime"' or '_ "runtime/cgo"' or 'sc "syscall"'.
Hash *go_imports;
public:
GO():package(NULL),
@ -104,6 +108,7 @@ public:
f_c_init(NULL),
f_c_directors(NULL),
f_c_directors_h(NULL),
f_go_imports(NULL),
f_go_runtime(NULL),
f_go_header(NULL),
f_go_wrappers(NULL),
@ -120,7 +125,8 @@ public:
making_variable_wrappers(false),
is_static_member_function(false),
undefined_types(NULL),
defined_types(NULL) {
defined_types(NULL),
go_imports(NULL) {
director_multiple_inheritance = 1;
director_language = 1;
director_prot_ctor_code = NewString("_swig_gopanic(\"accessing abstract class or protected constructor\");");
@ -362,6 +368,7 @@ private:
f_c_wrappers = NewString("");
f_c_init = NewString("");
f_c_directors = NewString("");
f_go_imports = NewString("");
f_go_runtime = NewString("");
f_go_header = NewString("");
f_go_wrappers = NewString("");
@ -379,6 +386,7 @@ private:
Swig_register_filebyname("director", f_c_directors);
Swig_register_filebyname("director_h", f_c_directors_h);
Swig_register_filebyname("go_begin", f_go_begin);
Swig_register_filebyname("go_imports", f_go_imports);
Swig_register_filebyname("go_runtime", f_go_runtime);
Swig_register_filebyname("go_header", f_go_header);
Swig_register_filebyname("go_wrapper", f_go_wrappers);
@ -445,11 +453,14 @@ private:
undefined_types = NewHash();
defined_types = NewHash();
go_imports = NewHash();
// Emit code.
Language::top(n);
Delete(go_imports);
// Write out definitions for the types not defined by SWIG.
Printv(f_go_wrappers, "\n", NULL);
@ -493,6 +504,7 @@ private:
Dump(f_c_runtime, f_c_begin);
Dump(f_c_wrappers, f_c_begin);
Dump(f_c_init, f_c_begin);
Dump(f_go_imports, f_go_begin);
Dump(f_go_header, f_go_begin);
Dump(f_go_runtime, f_go_begin);
Dump(f_go_wrappers, f_go_begin);
@ -506,6 +518,7 @@ private:
Delete(f_c_header);
Delete(f_c_wrappers);
Delete(f_c_init);
Delete(f_go_imports);
Delete(f_go_runtime);
Delete(f_go_header);
Delete(f_go_wrappers);
@ -535,7 +548,10 @@ private:
String *hold_import = imported_package;
String *modname = Getattr(n, "module");
if (modname) {
Printv(f_go_begin, "import \"", modname, "\"\n", NULL);
if (!Getattr(go_imports, modname)) {
Setattr(go_imports, modname, modname);
Printv(f_go_imports, "import \"", modname, "\"\n", NULL);
}
imported_package = modname;
saw_import = true;
}
@ -544,6 +560,31 @@ private:
return r;
}
/* ----------------------------------------------------------------------
* Language::insertDirective()
*
* If the section is go_imports, store them for later.
* ---------------------------------------------------------------------- */
virtual int insertDirective(Node *n) {
char *section = Char(Getattr(n, "section"));
if ((ImportMode && !Getattr(n, "generated")) ||
!section || (strcmp(section, "go_imports") != 0)) {
return Language::insertDirective(n);
}
char *code = Char(Getattr(n, "code"));
char *pch = strtok(code, ",");
while (pch != NULL) {
// Do not import same thing more than once.
if (!Getattr(go_imports, pch)) {
Setattr(go_imports, pch, pch);
Printv(f_go_imports, "import ", pch, "\n", NULL);
}
pch = strtok(NULL, ",");
}
return SWIG_OK;
}
/* ----------------------------------------------------------------------
* functionWrapper()
*