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#include <mruby.h>
#include <mruby/presym.h>
#include <mruby/proc.h>
#include <mruby/variable.h>
/* provided by mruby-proc-ext */
mrb_value mrb_proc_source_location(mrb_state *mrb, struct RProc *p);
/* provided by mruby-binding-core */
mrb_value mrb_binding_alloc(mrb_state *mrb);
struct RProc *mrb_binding_wrap_lvspace(mrb_state *mrb, const struct RProc *proc, struct REnv **envp);
static mrb_value
mrb_proc_binding(mrb_state *mrb, mrb_value procval)
{
mrb_value binding = mrb_binding_alloc(mrb);
const struct RProc *proc = mrb_proc_ptr(procval);
struct REnv *env;
mrb_value receiver;
if (!proc || MRB_PROC_CFUNC_P(proc) || !proc->upper || MRB_PROC_CFUNC_P(proc->upper)) {
env = NULL;
proc = NULL;
receiver = mrb_nil_value();
}
else {
env = MRB_PROC_ENV(proc);
mrb_assert(env);
proc = proc->upper;
receiver = MRB_ENV_LEN(env) > 0 ? env->stack[0] : mrb_nil_value();
}
proc = mrb_binding_wrap_lvspace(mrb, proc, &env);
mrb_iv_set(mrb, binding, MRB_SYM(proc), mrb_obj_value((void *)proc));
mrb_iv_set(mrb, binding, MRB_SYM(recv), receiver);
mrb_iv_set(mrb, binding, MRB_SYM(env), mrb_obj_value(env));
mrb_iv_set(mrb, binding, MRB_SYM(source_location), mrb_proc_source_location(mrb, mrb_proc_ptr(procval)));
return binding;
}
void
mrb_mruby_proc_binding_gem_init(mrb_state *mrb)
{
mrb_define_method(mrb, mrb->proc_class, "binding", mrb_proc_binding, MRB_ARGS_NONE());
}
void
mrb_mruby_proc_binding_gem_final(mrb_state *mrb)
{
}
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