proc.h File Reference

• Proc class

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#include "common.h"
#include <mruby/irep.h>
#include <mruby/khash.h>

Include dependency graph for proc.h:

Go to the source code of this file.

Classes
struct	REnv
	Proc class. More...
struct	RProc

Macros
#define	MRB_ENV_SET_LEN(e, len)
#define	MRB_ENV_LEN(e)
#define	MRB_ENV_CLOSED   (1<<20)
#define	MRB_ENV_CLOSE(e)
#define	MRB_ENV_ONSTACK_P(e)
#define	MRB_ENV_BIDX(e)
#define	MRB_ENV_SET_BIDX(e, idx)
#define	MRB_ASPEC_REQ(a)
#define	MRB_ASPEC_OPT(a)
#define	MRB_ASPEC_REST(a)
#define	MRB_ASPEC_POST(a)
#define	MRB_ASPEC_KEY(a)
#define	MRB_ASPEC_KDICT(a)
#define	MRB_ASPEC_BLOCK(a)
#define	MRB_PROC_CFUNC_FL   128
#define	MRB_PROC_CFUNC_P(p)
#define	MRB_PROC_CFUNC(p)
#define	MRB_PROC_STRICT   256
#define	MRB_PROC_STRICT_P(p)
#define	MRB_PROC_ORPHAN   512
#define	MRB_PROC_ORPHAN_P(p)
#define	MRB_PROC_ENVSET   1024
#define	MRB_PROC_ENV_P(p)
#define	MRB_PROC_ENV(p)
#define	MRB_PROC_TARGET_CLASS(p)
#define	MRB_PROC_SET_TARGET_CLASS(p, tc)
#define	MRB_PROC_SCOPE   2048
#define	MRB_PROC_SCOPE_P(p)
#define	MRB_PROC_NOARG   4096 /* for MRB_PROC_CFUNC_FL, it would be something like MRB_ARGS_NONE() or MRB_METHOD_NOARG_FL */
#define	MRB_PROC_NOARG_P(p)
#define	MRB_PROC_ALIAS   8192
#define	MRB_PROC_ALIAS_P(p)
#define	mrb_proc_ptr(v)
#define	mrb_cfunc_env_get(mrb, idx)
#define	MRB_METHOD_FUNC_FL   1
#define	MRB_METHOD_NOARG_FL   2
#define	MRB_METHOD_FUNC_P(m)
#define	MRB_METHOD_NOARG_P(m)
#define	MRB_METHOD_NOARG_SET(m)
#define	MRB_METHOD_FUNC(m)
#define	MRB_METHOD_FROM_FUNC(m, fn)
#define	MRB_METHOD_FROM_PROC(m, pr)
#define	MRB_METHOD_PROC_P(m)
#define	MRB_METHOD_PROC(m)
#define	MRB_METHOD_UNDEF_P(m)
#define	MRB_METHOD_CFUNC_P(m)
#define	MRB_METHOD_CFUNC(m)

Functions
mrb_bool	mrb_env_unshare (mrb_state *, struct REnv *, mrb_bool noraise)
struct RProc *	mrb_proc_new (mrb_state *, const mrb_irep *)
struct RProc *	mrb_proc_new_cfunc (mrb_state *, mrb_func_t)
struct RProc *	mrb_closure_new_cfunc (mrb_state *mrb, mrb_func_t func, int nlocals)
struct RProc *	mrb_proc_new_cfunc_with_env (mrb_state *mrb, mrb_func_t func, mrb_int argc, const mrb_value *argv)
mrb_value	mrb_proc_cfunc_env_get (mrb_state *mrb, mrb_int idx)
mrb_value	mrb_load_proc (mrb_state *mrb, const struct RProc *proc)
void	mrb_vm_ci_env_clear (mrb_state *mrb, mrb_callinfo *ci)
	It can be used to isolate top-level scopes referenced by blocks generated by mrb_load_string_cxt() or similar called before entering the mruby VM (e.g.
void	mrb_vm_ci_proc_set (mrb_callinfo *ci, const struct RProc *p)
struct RClass *	mrb_vm_ci_target_class (const mrb_callinfo *ci)
void	mrb_vm_ci_target_class_set (mrb_callinfo *ci, struct RClass *tc)
struct REnv *	mrb_vm_ci_env (const mrb_callinfo *ci)
void	mrb_vm_ci_env_set (mrb_callinfo *ci, struct REnv *e)

Detailed Description

• Proc class

See Copyright Notice in mruby.h

Macro Definition Documentation

MRB_ASPEC_BLOCK

#define MRB_ASPEC_BLOCK

(

a

)

Value:

((a) & 1)

MRB_ASPEC_KDICT

#define MRB_ASPEC_KDICT

(

a

)

Value:

(((a) >> 1) & 0x1)

MRB_ASPEC_KEY

#define MRB_ASPEC_KEY

(

a

)

Value:

(((a) >> 2) & 0x1f)

MRB_ASPEC_OPT

#define MRB_ASPEC_OPT

(

a

)

Value:

(((a) >> 13) & 0x1f)

MRB_ASPEC_POST

#define MRB_ASPEC_POST

(

a

)

Value:

(((a) >> 7) & 0x1f)

MRB_ASPEC_REQ

#define MRB_ASPEC_REQ

(

a

)

Value:

(((a) >> 18) & 0x1f)

MRB_ASPEC_REST

#define MRB_ASPEC_REST

(

a

)

Value:

(((a) >> 12) & 0x1)

mrb_cfunc_env_get

#define mrb_cfunc_env_get	(		mrb,
			idx )

Value:

mrb_proc_cfunc_env_get(mrb, idx)

MRB_ENV_BIDX

#define MRB_ENV_BIDX

(

e

)

Value:

(((e)->flags >> 8) & 0xff)

MRB_ENV_CLOSE

#define MRB_ENV_CLOSE

(

e

)

Value:

((e)->flags |= MRB_ENV_CLOSED)

MRB_ENV_LEN

#define MRB_ENV_LEN

(

e

)

Value:

((mrb_int)((e)->flags & 0xff))

MRB_ENV_ONSTACK_P

#define MRB_ENV_ONSTACK_P

(

e

)

Value:

(((e)->flags & MRB_ENV_CLOSED) == 0)

MRB_ENV_SET_BIDX

#define MRB_ENV_SET_BIDX	(		e,
			idx )

Value:

((e)->flags = (((e)->flags & ~(0xff<<8))|((unsigned int)(idx) & 0xff)<<8))

MRB_ENV_SET_LEN

#define MRB_ENV_SET_LEN	(		e,
			len )

Value:

((e)->flags = (((e)->flags & ~0xff)|((unsigned int)(len) & 0xff)))

MRB_METHOD_CFUNC

#define MRB_METHOD_CFUNC

(

m

)

Value:

(MRB_METHOD_FUNC_P(m)?MRB_METHOD_FUNC(m):((MRB_METHOD_PROC(m)&&MRB_PROC_CFUNC_P(MRB_METHOD_PROC(m)))?MRB_PROC_CFUNC(MRB_METHOD_PROC(m)):NULL))

MRB_METHOD_CFUNC_P

#define MRB_METHOD_CFUNC_P

(

m

)

Value:

(MRB_METHOD_FUNC_P(m)?TRUE:(MRB_METHOD_PROC(m)?(MRB_PROC_CFUNC_P(MRB_METHOD_PROC(m))):FALSE))

MRB_METHOD_FROM_FUNC

#define MRB_METHOD_FROM_FUNC	(		m,
			fn )

Value:

((m)=(mrb_method_t)((((uintptr_t)(fn))<<2)|MRB_METHOD_FUNC_FL))

MRB_METHOD_FROM_PROC

#define MRB_METHOD_FROM_PROC	(		m,
			pr )

Value:

((m)=(mrb_method_t)(pr))

MRB_METHOD_FUNC

#define MRB_METHOD_FUNC

(

m

)

Value:

((mrb_func_t)((uintptr_t)(m)>>2))

MRB_METHOD_FUNC_P

#define MRB_METHOD_FUNC_P

(

m

)

Value:

(((uintptr_t)(m))&MRB_METHOD_FUNC_FL)

MRB_METHOD_NOARG_P

#define MRB_METHOD_NOARG_P

(

m

)

Value:

((((uintptr_t)(m))&MRB_METHOD_NOARG_FL)?1:0)

MRB_METHOD_NOARG_SET

#define MRB_METHOD_NOARG_SET

(

m

)

Value:

((m)=(mrb_method_t)(((uintptr_t)(m))|MRB_METHOD_NOARG_FL))

MRB_METHOD_PROC

#define MRB_METHOD_PROC

(

m

)

Value:

((struct RProc*)(m))

MRB_METHOD_PROC_P

#define MRB_METHOD_PROC_P

(

m

)

Value:

(!MRB_METHOD_FUNC_P(m))

MRB_METHOD_UNDEF_P

#define MRB_METHOD_UNDEF_P

(

m

)

Value:

((m)==0)

MRB_PROC_ALIAS_P

#define MRB_PROC_ALIAS_P

(

p

)

Value:

(((p)->flags & MRB_PROC_ALIAS) != 0)

MRB_PROC_CFUNC

#define MRB_PROC_CFUNC

(

p

)

Value:

(p)->body.func

MRB_PROC_CFUNC_P

#define MRB_PROC_CFUNC_P

(

p

)

Value:

(((p)->flags & MRB_PROC_CFUNC_FL) != 0)

MRB_PROC_ENV

#define MRB_PROC_ENV

(

p

)

Value:

(MRB_PROC_ENV_P(p) ? (p)->e.env : NULL)

MRB_PROC_ENV_P

#define MRB_PROC_ENV_P

(

p

)

Value:

(((p)->flags & MRB_PROC_ENVSET) != 0)

MRB_PROC_NOARG_P

#define MRB_PROC_NOARG_P

(

p

)

Value:

(((p)->flags & MRB_PROC_NOARG) != 0)

MRB_PROC_ORPHAN_P

#define MRB_PROC_ORPHAN_P

(

p

)

Value:

(((p)->flags & MRB_PROC_ORPHAN) != 0)

mrb_proc_ptr

#define mrb_proc_ptr

(

v

)

Value:

((struct RProc*)(mrb_ptr(v)))

MRB_PROC_SCOPE_P

#define MRB_PROC_SCOPE_P

(

p

)

Value:

(((p)->flags & MRB_PROC_SCOPE) != 0)

MRB_PROC_SET_TARGET_CLASS

#define MRB_PROC_SET_TARGET_CLASS	(		p,
			tc )

Value:

  do {\
  if (MRB_PROC_ENV_P(p)) {\
    (p)->e.env->c = (tc);\
    mrb_field_write_barrier(mrb, (struct RBasic*)(p)->e.env, (struct RBasic*)(tc));\
  }\
  else {\
    (p)->e.target_class = (tc);\
    mrb_field_write_barrier(mrb, (struct RBasic*)p, (struct RBasic*)(tc));\
  }\
} while (0)

MRB_PROC_STRICT_P

#define MRB_PROC_STRICT_P

(

p

)

Value:

(((p)->flags & MRB_PROC_STRICT) != 0)

MRB_PROC_TARGET_CLASS

#define MRB_PROC_TARGET_CLASS

(

p

)

Value:

(MRB_PROC_ENV_P(p) ? (p)->e.env->c : (p)->e.target_class)

Function Documentation

mrb_vm_ci_env_clear()

void mrb_vm_ci_env_clear ( mrb_state * mrb, mrb_callinfo * ci )

extern

It can be used to isolate top-level scopes referenced by blocks generated by mrb_load_string_cxt() or similar called before entering the mruby VM (e.g.

from main()). In that case, the ci parameter should be mrb->c->cibase.

#include <mruby.h>
#include <mruby/compile.h>
#include <mruby/proc.h>

int
main(int argc, char **argv)
{
  mrb_state *mrb;
  mrb_ccontext *cxt;
  mrb_value blk, ret;

  mrb = mrb_open();
  cxt = mrb_ccontext_new(mrb);
  blk = mrb_load_string_cxt(mrb, "x, y, z = 1, 2, 3; proc { [x, y, z] }", cxt);
  mrb_vm_ci_env_clear(mrb, mrb->c->cibase);
  mrb_load_string_cxt(mrb, "x, y, z = 4, 5, 6", cxt);
  ret = mrb_funcall(mrb, blk, "call", 0);
  mrb_p(mrb, ret);  // => [1, 2, 3]
                    // => [4, 5, 6] if `mrb_vm_ci_env_clear()` is commented out
  mrb_ccontext_free(mrb, cxt);
  mrb_close(mrb);

  return 0;
}

The top-level local variable names stored in mrb_ccontext are retained. Use also mrb_ccontext_cleanup_local_variables() at the same time, if necessary.