mirror of
https://github.com/janet-lang/janet
synced 2024-06-25 22:53:16 +00:00
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
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#include <gst/gst.h>
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/* Wrapper functions wrap a data type that is used from C into a
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* gst value, which can then be used in gst. */
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GstValue gst_wrap_nil() {
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GstValue y;
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y.type = GST_NIL;
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return y;
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}
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#define GST_WRAP_DEFINE(NAME, TYPE, GTYPE, UM)\
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GstValue gst_wrap_##NAME(TYPE x) {\
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GstValue y;\
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y.type = GTYPE;\
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y.data.UM = x;\
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return y;\
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}
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GST_WRAP_DEFINE(number, GstNumber, GST_NUMBER, number)
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GST_WRAP_DEFINE(boolean, int, GST_BOOLEAN, boolean)
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GST_WRAP_DEFINE(string, const uint8_t *, GST_STRING, string)
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GST_WRAP_DEFINE(array, GstArray *, GST_ARRAY, array)
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GST_WRAP_DEFINE(tuple, const GstValue *, GST_TUPLE, tuple)
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GST_WRAP_DEFINE(struct, const GstValue *, GST_STRUCT, st)
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GST_WRAP_DEFINE(thread, GstThread *, GST_THREAD, thread)
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GST_WRAP_DEFINE(buffer, GstBuffer *, GST_BYTEBUFFER, buffer)
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GST_WRAP_DEFINE(function, GstFunction *, GST_FUNCTION, function)
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GST_WRAP_DEFINE(cfunction, GstCFunction, GST_CFUNCTION, cfunction)
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GST_WRAP_DEFINE(object, GstObject *, GST_OBJECT, object)
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GST_WRAP_DEFINE(userdata, void *, GST_USERDATA, pointer)
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GST_WRAP_DEFINE(funcenv, GstFuncEnv *, GST_FUNCENV, env)
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GST_WRAP_DEFINE(funcdef, GstFuncDef *, GST_FUNCDEF, def)
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#undef GST_WRAP_DEFINE
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GstValue gst_c_module_object(Gst *vm, const GstModuleItem *mod) {
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GstObject *module = gst_object(vm, 10);
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while (mod->name != NULL) {
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GstValue key = gst_string_cv(vm, mod->name);
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gst_object_put(vm, module, key, gst_wrap_cfunction(mod->data));
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mod++;
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}
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return gst_wrap_object(module);
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}
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GstValue gst_c_module_struct(Gst *vm, const GstModuleItem *mod) {
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uint32_t count = 0;
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const GstModuleItem *m = mod;
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GstValue *st;
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while (m->name != NULL) {
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++count;
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++m;
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}
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st = gst_struct_begin(vm, count);
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m = mod;
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while (m->name != NULL) {
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gst_struct_put(st,
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gst_string_cv(vm, m->name),
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gst_wrap_cfunction(m->data));
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++m;
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}
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return gst_wrap_struct(gst_struct_end(vm, st));
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}
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void gst_c_register(Gst *vm, const char *packagename, GstValue mod) {
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if (vm->rootenv == NULL)
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vm->rootenv = gst_object(vm, 10);
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gst_object_put(vm, vm->rootenv, gst_string_cv(vm, packagename), mod);
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}
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