mruby/include/mruby.h at master · rkh/mruby · GitHub

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** mruby - An embeddable Ruby implementation

** Copyright (c) mruby developers 2010-2014

** Permission is hereby granted, free of charge, to any person obtaining

** a copy of this software and associated documentation files (the

** "Software"), to deal in the Software without restriction, including

** without limitation the rights to use, copy, modify, merge, publish,

** distribute, sublicense, and/or sell copies of the Software, and to

** permit persons to whom the Software is furnished to do so, subject to

** the following conditions:

** The above copyright notice and this permission notice shall be

** included in all copies or substantial portions of the Software.

** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]

#ifndef MRUBY_H

#define MRUBY_H

#if defined(__cplusplus)

extern "C" {

#endif

#include <stdint.h>

#include <stddef.h>

#include <limits.h>

#include "mrbconf.h"

#include "mruby/value.h"

#include "mruby/version.h"

typedef uint32_t mrb_code;

typedef uint32_t mrb_aspec;

struct mrb_irep;

struct mrb_state;

typedef void* (*mrb_allocf) (struct mrb_state *mrb, void*, size_t, void *ud);

#ifndef MRB_GC_ARENA_SIZE

#define MRB_GC_ARENA_SIZE 100

#endif

typedef struct {

mrb_sym mid;

struct RProc *proc;

mrb_value *stackent;

int nregs;

int argc;

mrb_code *pc; /* return address */

mrb_code *err; /* error position */

int acc;

struct RClass *target_class;

int ridx;

int eidx;

struct REnv *env;

} mrb_callinfo;

enum mrb_fiber_state {

MRB_FIBER_CREATED = 0,

MRB_FIBER_RUNNING,

MRB_FIBER_RESUMING,

MRB_FIBER_SUSPENDED,

MRB_FIBER_TRANSFERRED,

MRB_FIBER_TERMINATED,

};

struct mrb_context {

struct mrb_context *prev;

mrb_value *stack; /* stack of virtual machine */

mrb_value *stbase, *stend;

mrb_callinfo *ci;

mrb_callinfo *cibase, *ciend;

mrb_code **rescue; /* exception handler stack */

int rsize;

struct RProc **ensure; /* ensure handler stack */

int esize;

enum mrb_fiber_state status;

struct RFiber *fib;

};

enum gc_state {

GC_STATE_NONE = 0,

GC_STATE_MARK,

GC_STATE_SWEEP

};

struct mrb_jmpbuf;

typedef struct mrb_state {

struct mrb_jmpbuf *jmp;

mrb_allocf allocf; /* memory allocation function */

struct mrb_context *c;

struct mrb_context *root_c;

struct RObject *exc; /* exception */

struct iv_tbl *globals; /* global variable table */

struct RObject *top_self;

struct RClass *object_class; /* Object class */

struct RClass *class_class;

struct RClass *module_class;

struct RClass *proc_class;

struct RClass *string_class;

struct RClass *array_class;

struct RClass *hash_class;

struct RClass *float_class;

struct RClass *fixnum_class;

struct RClass *true_class;

struct RClass *false_class;

struct RClass *nil_class;

struct RClass *symbol_class;

struct RClass *kernel_module;

struct heap_page *heaps; /* heaps for GC */

struct heap_page *sweeps;

struct heap_page *free_heaps;

size_t live; /* count of live objects */

#ifdef MRB_GC_FIXED_ARENA

struct RBasic *arena[MRB_GC_ARENA_SIZE]; /* GC protection array */

#else

struct RBasic **arena; /* GC protection array */

int arena_capa;

#endif

int arena_idx;

enum gc_state gc_state; /* state of gc */

int current_white_part; /* make white object by white_part */

struct RBasic *gray_list; /* list of gray objects to be traversed incrementally */

struct RBasic *atomic_gray_list; /* list of objects to be traversed atomically */

size_t gc_live_after_mark;

size_t gc_threshold;

int gc_interval_ratio;

int gc_step_ratio;

mrb_bool gc_disabled:1;

mrb_bool gc_full:1;

mrb_bool is_generational_gc_mode:1;

mrb_bool out_of_memory:1;

size_t majorgc_old_threshold;

struct alloca_header *mems;

mrb_sym symidx;

struct kh_n2s *name2sym; /* symbol table */

#ifdef ENABLE_DEBUG

void (*code_fetch_hook)(struct mrb_state* mrb, struct mrb_irep *irep, mrb_code *pc, mrb_value *regs);

void (*debug_op_hook)(struct mrb_state* mrb, struct mrb_irep *irep, mrb_code *pc, mrb_value *regs);

#endif

struct RClass *eException_class;

struct RClass *eStandardError_class;

void *ud; /* auxiliary data */

} mrb_state;

typedef mrb_value (*mrb_func_t)(mrb_state *mrb, mrb_value);

struct RClass *mrb_define_class(mrb_state *, const char*, struct RClass*);

struct RClass *mrb_define_module(mrb_state *, const char*);

mrb_value mrb_singleton_class(mrb_state*, mrb_value);

void mrb_include_module(mrb_state*, struct RClass*, struct RClass*);

void mrb_define_method(mrb_state*, struct RClass*, const char*, mrb_func_t, mrb_aspec);

void mrb_define_class_method(mrb_state *, struct RClass *, const char *, mrb_func_t, mrb_aspec);

void mrb_define_singleton_method(mrb_state*, struct RObject*, const char*, mrb_func_t, mrb_aspec);

void mrb_define_module_function(mrb_state*, struct RClass*, const char*, mrb_func_t, mrb_aspec);

void mrb_define_const(mrb_state*, struct RClass*, const char *name, mrb_value);

void mrb_undef_method(mrb_state*, struct RClass*, const char*);

void mrb_undef_class_method(mrb_state*, struct RClass*, const char*);

mrb_value mrb_obj_new(mrb_state *mrb, struct RClass *c, int argc, mrb_value *argv);

#define mrb_class_new_instance(mrb,argc,argv,c) mrb_obj_new(mrb,c,argc,argv)

mrb_value mrb_instance_new(mrb_state *mrb, mrb_value cv);

struct RClass * mrb_class_new(mrb_state *mrb, struct RClass *super);

struct RClass * mrb_module_new(mrb_state *mrb);

mrb_bool mrb_class_defined(mrb_state *mrb, const char *name);

struct RClass * mrb_class_get(mrb_state *mrb, const char *name);

struct RClass * mrb_class_get_under(mrb_state *mrb, struct RClass *outer, const char *name);

struct RClass * mrb_module_get(mrb_state *mrb, const char *name);

struct RClass * mrb_module_get_under(mrb_state *mrb, struct RClass *outer, const char *name);

mrb_value mrb_obj_dup(mrb_state *mrb, mrb_value obj);

mrb_value mrb_check_to_integer(mrb_state *mrb, mrb_value val, const char *method);

mrb_bool mrb_obj_respond_to(mrb_state *mrb, struct RClass* c, mrb_sym mid);

struct RClass * mrb_define_class_under(mrb_state *mrb, struct RClass *outer, const char *name, struct RClass *super);

struct RClass * mrb_define_module_under(mrb_state *mrb, struct RClass *outer, const char *name);

/* required arguments */

#define MRB_ARGS_REQ(n) ((mrb_aspec)((n)&0x1f) << 18)

/* optional arguments */

#define MRB_ARGS_OPT(n) ((mrb_aspec)((n)&0x1f) << 13)

/* mandatory and optinal arguments */

#define MRB_ARGS_ARG(n1,n2) (MRB_ARGS_REQ(n1)|MRB_ARGS_OPT(n2))

/* rest argument */

#define MRB_ARGS_REST() ((mrb_aspec)(1 << 12))

/* required arguments after rest */

#define MRB_ARGS_POST(n) ((mrb_aspec)((n)&0x1f) << 7)

/* keyword arguments (n of keys, kdict) */

#define MRB_ARGS_KEY(n1,n2) ((mrb_aspec)((((n1)&0x1f) << 2) | ((n2)?(1<<1):0)))

/* block argument */

#define MRB_ARGS_BLOCK() ((mrb_aspec)1)

/* accept any number of arguments */

#define MRB_ARGS_ANY() MRB_ARGS_REST()

/* accept no arguments */

#define MRB_ARGS_NONE() ((mrb_aspec)0)

/* compatibility macros; will be removed */

#define ARGS_REQ(n) MRB_ARGS_REQ(n)

#define ARGS_OPT(n) MRB_ARGS_OPT(n)

#define ARGS_REST() MRB_ARGS_REST()

#define ARGS_POST(n) MRB_ARGS_POST()

#define ARGS_KEY(n1,n2) MRB_ARGS_KEY(n1,n2)

#define ARGS_BLOCK() MRB_ARGS_BLOCK()

#define ARGS_ANY() MRB_ARGS_ANY()

#define ARGS_NONE() MRB_ARGS_NONE()

int mrb_get_args(mrb_state *mrb, const char *format, ...);

/* `strlen` for character string literals (use with caution or `strlen` instead)

Adjacent string literals are concatenated in C/C++ in translation phase 6.

If `lit` is not one, the compiler will report a syntax error:

MSVC: "error C2143: syntax error : missing ')' before 'string'"

GCC: "error: expected ')' before string constant"

#define mrb_strlen_lit(lit) (sizeof(lit "") - 1)

mrb_value mrb_funcall(mrb_state*, mrb_value, const char*, int,...);

mrb_value mrb_funcall_argv(mrb_state*, mrb_value, mrb_sym, int, mrb_value*);

mrb_value mrb_funcall_with_block(mrb_state*, mrb_value, mrb_sym, int, mrb_value*, mrb_value);

mrb_sym mrb_intern_cstr(mrb_state*,const char*);

mrb_sym mrb_intern(mrb_state*,const char*,size_t);

mrb_sym mrb_intern_static(mrb_state*,const char*,size_t);

#define mrb_intern_lit(mrb, lit) mrb_intern_static(mrb, lit, mrb_strlen_lit(lit))

mrb_sym mrb_intern_str(mrb_state*,mrb_value);

mrb_value mrb_check_intern_cstr(mrb_state*,const char*);

mrb_value mrb_check_intern(mrb_state*,const char*,size_t);

mrb_value mrb_check_intern_str(mrb_state*,mrb_value);

const char *mrb_sym2name(mrb_state*,mrb_sym);

const char *mrb_sym2name_len(mrb_state*,mrb_sym,mrb_int*);

mrb_value mrb_sym2str(mrb_state*,mrb_sym);

void *mrb_malloc(mrb_state*, size_t); /* raise RuntimeError if no mem */

void *mrb_calloc(mrb_state*, size_t, size_t); /* ditto */

void *mrb_realloc(mrb_state*, void*, size_t); /* ditto */

void *mrb_realloc_simple(mrb_state*, void*, size_t); /* return NULL if no memory available */

void *mrb_malloc_simple(mrb_state*, size_t); /* return NULL if no memory available */

struct RBasic *mrb_obj_alloc(mrb_state*, enum mrb_vtype, struct RClass*);

void mrb_free(mrb_state*, void*);

mrb_value mrb_str_new(mrb_state *mrb, const char *p, size_t len);

mrb_value mrb_str_new_cstr(mrb_state*, const char*);

mrb_value mrb_str_new_static(mrb_state *mrb, const char *p, size_t len);

#define mrb_str_new_lit(mrb, lit) mrb_str_new_static(mrb, (lit), mrb_strlen_lit(lit))

mrb_state* mrb_open(void);

mrb_state* mrb_open_allocf(mrb_allocf, void *ud);

void mrb_close(mrb_state*);

mrb_value mrb_top_self(mrb_state *);

mrb_value mrb_run(mrb_state*, struct RProc*, mrb_value);

mrb_value mrb_toplevel_run(mrb_state*, struct RProc*);

mrb_value mrb_context_run(mrb_state*, struct RProc*, mrb_value, unsigned int);

void mrb_p(mrb_state*, mrb_value);

mrb_int mrb_obj_id(mrb_value obj);

mrb_sym mrb_obj_to_sym(mrb_state *mrb, mrb_value name);

mrb_bool mrb_obj_eq(mrb_state*, mrb_value, mrb_value);

mrb_bool mrb_obj_equal(mrb_state*, mrb_value, mrb_value);

mrb_bool mrb_equal(mrb_state *mrb, mrb_value obj1, mrb_value obj2);

mrb_value mrb_Integer(mrb_state *mrb, mrb_value val);

mrb_value mrb_Float(mrb_state *mrb, mrb_value val);

mrb_value mrb_inspect(mrb_state *mrb, mrb_value obj);

mrb_bool mrb_eql(mrb_state *mrb, mrb_value obj1, mrb_value obj2);

void mrb_garbage_collect(mrb_state*);

void mrb_full_gc(mrb_state*);

void mrb_incremental_gc(mrb_state *);

int mrb_gc_arena_save(mrb_state*);

void mrb_gc_arena_restore(mrb_state*,int);

void mrb_gc_mark(mrb_state*,struct RBasic*);

#define mrb_gc_mark_value(mrb,val) do {\

if (mrb_type(val) >= MRB_TT_HAS_BASIC) mrb_gc_mark((mrb), mrb_basic_ptr(val));\

} while (0)

void mrb_field_write_barrier(mrb_state *, struct RBasic*, struct RBasic*);

#define mrb_field_write_barrier_value(mrb, obj, val) do{\

if ((val.tt >= MRB_TT_HAS_BASIC)) mrb_field_write_barrier((mrb), (obj), mrb_basic_ptr(val));\

} while (0)

void mrb_write_barrier(mrb_state *, struct RBasic*);

mrb_value mrb_check_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method);

mrb_value mrb_any_to_s(mrb_state *mrb, mrb_value obj);

const char * mrb_obj_classname(mrb_state *mrb, mrb_value obj);

struct RClass* mrb_obj_class(mrb_state *mrb, mrb_value obj);

mrb_value mrb_class_path(mrb_state *mrb, struct RClass *c);

mrb_value mrb_convert_type(mrb_state *mrb, mrb_value val, enum mrb_vtype type, const char *tname, const char *method);

mrb_bool mrb_obj_is_kind_of(mrb_state *mrb, mrb_value obj, struct RClass *c);

mrb_value mrb_obj_inspect(mrb_state *mrb, mrb_value self);

mrb_value mrb_obj_clone(mrb_state *mrb, mrb_value self);

/* need to include <ctype.h> to use these macros */

#ifndef ISPRINT

/* #define ISASCII(c) isascii((int)(unsigned char)(c)) */

#define ISASCII(c) 1

#define ISPRINT(c) (ISASCII(c) && isprint((int)(unsigned char)(c)))

#define ISSPACE(c) (ISASCII(c) && isspace((int)(unsigned char)(c)))

#define ISUPPER(c) (ISASCII(c) && isupper((int)(unsigned char)(c)))

#define ISLOWER(c) (ISASCII(c) && islower((int)(unsigned char)(c)))

#define ISALNUM(c) (ISASCII(c) && isalnum((int)(unsigned char)(c)))

#define ISALPHA(c) (ISASCII(c) && isalpha((int)(unsigned char)(c)))

#define ISDIGIT(c) (ISASCII(c) && isdigit((int)(unsigned char)(c)))

#define ISXDIGIT(c) (ISASCII(c) && isxdigit((int)(unsigned char)(c)))

#define TOUPPER(c) (ISASCII(c) ? toupper((int)(unsigned char)(c)) : (c))

#define TOLOWER(c) (ISASCII(c) ? tolower((int)(unsigned char)(c)) : (c))

#endif

mrb_value mrb_exc_new(mrb_state *mrb, struct RClass *c, const char *ptr, long len);

void mrb_exc_raise(mrb_state *mrb, mrb_value exc);

void mrb_raise(mrb_state *mrb, struct RClass *c, const char *msg);

void mrb_raisef(mrb_state *mrb, struct RClass *c, const char *fmt, ...);

void mrb_name_error(mrb_state *mrb, mrb_sym id, const char *fmt, ...);

void mrb_warn(mrb_state *mrb, const char *fmt, ...);

void mrb_bug(mrb_state *mrb, const char *fmt, ...);

void mrb_print_backtrace(mrb_state *mrb);

void mrb_print_error(mrb_state *mrb);

/* macros to get typical exception objects

note:

+ those E_* macros requires mrb_state* variable named mrb.

+ exception objects obtained from those macros are local to mrb

#define E_RUNTIME_ERROR (mrb_class_get(mrb, "RuntimeError"))

#define E_TYPE_ERROR (mrb_class_get(mrb, "TypeError"))

#define E_ARGUMENT_ERROR (mrb_class_get(mrb, "ArgumentError"))

#define E_INDEX_ERROR (mrb_class_get(mrb, "IndexError"))

#define E_RANGE_ERROR (mrb_class_get(mrb, "RangeError"))

#define E_NAME_ERROR (mrb_class_get(mrb, "NameError"))

#define E_NOMETHOD_ERROR (mrb_class_get(mrb, "NoMethodError"))

#define E_SCRIPT_ERROR (mrb_class_get(mrb, "ScriptError"))

#define E_SYNTAX_ERROR (mrb_class_get(mrb, "SyntaxError"))

#define E_LOCALJUMP_ERROR (mrb_class_get(mrb, "LocalJumpError"))

#define E_REGEXP_ERROR (mrb_class_get(mrb, "RegexpError"))

#define E_NOTIMP_ERROR (mrb_class_get(mrb, "NotImplementedError"))

#define E_FLOATDOMAIN_ERROR (mrb_class_get(mrb, "FloatDomainError"))

#define E_KEY_ERROR (mrb_class_get(mrb, "KeyError"))

mrb_value mrb_yield(mrb_state *mrb, mrb_value b, mrb_value arg);

mrb_value mrb_yield_argv(mrb_state *mrb, mrb_value b, int argc, mrb_value *argv);

mrb_value mrb_yield_with_class(mrb_state *mrb, mrb_value b, int argc, mrb_value *argv, mrb_value self, struct RClass *c);

void mrb_gc_protect(mrb_state *mrb, mrb_value obj);

mrb_value mrb_to_int(mrb_state *mrb, mrb_value val);

void mrb_check_type(mrb_state *mrb, mrb_value x, enum mrb_vtype t);

typedef enum call_type {

CALL_PUBLIC,

CALL_FCALL,

CALL_VCALL,

CALL_TYPE_MAX

} call_type;

void mrb_define_alias(mrb_state *mrb, struct RClass *klass, const char *name1, const char *name2);

const char *mrb_class_name(mrb_state *mrb, struct RClass* klass);

void mrb_define_global_const(mrb_state *mrb, const char *name, mrb_value val);

mrb_value mrb_attr_get(mrb_state *mrb, mrb_value obj, mrb_sym id);

mrb_bool mrb_respond_to(mrb_state *mrb, mrb_value obj, mrb_sym mid);

mrb_bool mrb_obj_is_instance_of(mrb_state *mrb, mrb_value obj, struct RClass* c);

/* fiber functions (you need to link mruby-fiber mrbgem to use) */

mrb_value mrb_fiber_yield(mrb_state *mrb, int argc, mrb_value *argv);

#define E_FIBER_ERROR (mrb_class_get(mrb, "FiberError"))

/* memory pool implementation */

typedef struct mrb_pool mrb_pool;

struct mrb_pool* mrb_pool_open(mrb_state*);

void mrb_pool_close(struct mrb_pool*);

void* mrb_pool_alloc(struct mrb_pool*, size_t);

void* mrb_pool_realloc(struct mrb_pool*, void*, size_t oldlen, size_t newlen);

mrb_bool mrb_pool_can_realloc(struct mrb_pool*, void*, size_t);

void* mrb_alloca(mrb_state *mrb, size_t);

#ifdef MRB_DEBUG

#include <assert.h>

#define mrb_assert(p) assert(p)

#else

#define mrb_assert(p) ((void)0)

#endif

#if defined(__cplusplus)

} /* extern "C" { */

#endif

#endif /* MRUBY_H */

mruby/include/mruby.h at master · rkh/mruby · GitHub

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