#include "eval_intern.h"
#include "internal.h"
#include "gc.h"
#include "vm_core.h"
#include "iseq.h"
#define PROC_NEW_REQUIRES_BLOCK 0
#if !defined(__GNUC__) || __GNUC__ < 5 || defined(__MINGW32__)
# define NO_CLOBBERED(v) (*(volatile VALUE *)&(v))
#else
# define NO_CLOBBERED(v) (v)
#endif
const rb_cref_t *rb_vm_cref_in_context(VALUE self, VALUE cbase);
struct METHOD {
const VALUE recv;
const VALUE klass;
const VALUE iclass;
const rb_method_entry_t * const me;
};
VALUE rb_cUnboundMethod;
VALUE rb_cMethod;
VALUE rb_cBinding;
VALUE rb_cProc;
static VALUE bmcall(VALUE, VALUE, int, VALUE *, VALUE);
static int method_arity(VALUE);
static int method_min_max_arity(VALUE, int *max);
#define attached id__attached__
#define IS_METHOD_PROC_IFUNC(ifunc) ((ifunc)->func == bmcall)
static void
block_mark(const struct rb_block *block)
{
switch (vm_block_type(block)) {
case block_type_iseq:
case block_type_ifunc:
{
const struct rb_captured_block *captured = &block->as.captured;
RUBY_MARK_UNLESS_NULL(captured->self);
RUBY_MARK_UNLESS_NULL((VALUE)captured->code.val);
if (captured->ep && captured->ep[VM_ENV_DATA_INDEX_ENV] != Qundef ) {
RUBY_MARK_UNLESS_NULL(VM_ENV_ENVVAL(captured->ep));
}
}
break;
case block_type_symbol:
RUBY_MARK_UNLESS_NULL(block->as.symbol);
break;
case block_type_proc:
RUBY_MARK_UNLESS_NULL(block->as.proc);
break;
}
}
static void
proc_mark(void *ptr)
{
rb_proc_t *proc = ptr;
block_mark(&proc->block);
RUBY_MARK_LEAVE("proc");
}
typedef struct {
rb_proc_t basic;
VALUE env[VM_ENV_DATA_SIZE + 1];
} cfunc_proc_t;
static size_t
proc_memsize(const void *ptr)
{
const rb_proc_t *proc = ptr;
if (proc->block.as.captured.ep == ((const cfunc_proc_t *)ptr)->env+1)
return sizeof(cfunc_proc_t);
return sizeof(rb_proc_t);
}
static const rb_data_type_t proc_data_type = {
"proc",
{
proc_mark,
RUBY_TYPED_DEFAULT_FREE,
proc_memsize,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED
};
VALUE
rb_proc_alloc(VALUE klass)
{
rb_proc_t *proc;
return TypedData_Make_Struct(klass, rb_proc_t, &proc_data_type, proc);
}
VALUE
rb_obj_is_proc(VALUE proc)
{
if (rb_typeddata_is_kind_of(proc, &proc_data_type)) {
return Qtrue;
}
else {
return Qfalse;
}
}
static VALUE
proc_clone(VALUE self)
{
VALUE procval = rb_proc_dup(self);
CLONESETUP(procval, self);
return procval;
}
VALUE
rb_proc_lambda_p(VALUE procval)
{
rb_proc_t *proc;
GetProcPtr(procval, proc);
return proc->is_lambda ? Qtrue : Qfalse;
}
static void
binding_free(void *ptr)
{
RUBY_FREE_ENTER("binding");
ruby_xfree(ptr);
RUBY_FREE_LEAVE("binding");
}
static void
binding_mark(void *ptr)
{
rb_binding_t *bind = ptr;
RUBY_MARK_ENTER("binding");
block_mark(&bind->block);
rb_gc_mark(bind->pathobj);
RUBY_MARK_LEAVE("binding");
}
static size_t
binding_memsize(const void *ptr)
{
return sizeof(rb_binding_t);
}
const rb_data_type_t ruby_binding_data_type = {
"binding",
{
binding_mark,
binding_free,
binding_memsize,
},
0, 0, RUBY_TYPED_WB_PROTECTED | RUBY_TYPED_FREE_IMMEDIATELY
};
VALUE
rb_binding_alloc(VALUE klass)
{
VALUE obj;
rb_binding_t *bind;
obj = TypedData_Make_Struct(klass, rb_binding_t, &ruby_binding_data_type, bind);
return obj;
}
static VALUE
binding_dup(VALUE self)
{
VALUE bindval = rb_binding_alloc(rb_cBinding);
rb_binding_t *src, *dst;
GetBindingPtr(self, src);
GetBindingPtr(bindval, dst);
rb_vm_block_copy(bindval, &dst->block, &src->block);
RB_OBJ_WRITE(bindval, &dst->pathobj, src->pathobj);
dst->first_lineno = src->first_lineno;
return bindval;
}
static VALUE
binding_clone(VALUE self)
{
VALUE bindval = binding_dup(self);
CLONESETUP(bindval, self);
return bindval;
}
VALUE
rb_binding_new(void)
{
rb_execution_context_t *ec = GET_EC();
return rb_vm_make_binding(ec, ec->cfp);
}
static VALUE
rb_f_binding(VALUE self)
{
return rb_binding_new();
}
static VALUE
bind_eval(int argc, VALUE *argv, VALUE bindval)
{
VALUE args[4];
rb_scan_args(argc, argv, "12", &args[0], &args[2], &args[3]);
args[1] = bindval;
return rb_f_eval(argc+1, args, Qnil );
}
static const VALUE *
get_local_variable_ptr(const rb_env_t **envp, ID lid)
{
const rb_env_t *env = *envp;
do {
if (!VM_ENV_FLAGS(env->ep, VM_FRAME_FLAG_CFRAME)) {
const rb_iseq_t *iseq = env->iseq;
unsigned int i;
VM_ASSERT(rb_obj_is_iseq((VALUE)iseq));
for (i=0; i<iseq->body->local_table_size; i++) {
if (iseq->body->local_table[i] == lid) {
if (iseq->body->local_iseq == iseq &&
iseq->body->param.flags.has_block &&
(unsigned int)iseq->body->param.block_start == i) {
const VALUE *ep = env->ep;
if (!VM_ENV_FLAGS(ep, VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM)) {
RB_OBJ_WRITE(env, &env->env[i], rb_vm_bh_to_procval(GET_EC(), VM_ENV_BLOCK_HANDLER(ep)));
VM_ENV_FLAGS_SET(ep, VM_FRAME_FLAG_MODIFIED_BLOCK_PARAM);
}
}
*envp = env;
return &env->env[i];
}
}
}
else {
*envp = NULL;
return NULL;
}
} while ((env = rb_vm_env_prev_env(env)) != NULL);
*envp = NULL;
return NULL;
}
static ID
check_local_id(VALUE bindval, volatile VALUE *pname)
{
ID lid = rb_check_id(pname);
VALUE name = *pname;
if (lid) {
if (!rb_is_local_id(lid)) {
rb_name_err_raise("wrong local variable name `%1$s' for %2$s",
bindval, ID2SYM(lid));
}
}
else {
if (!rb_is_local_name(name)) {
rb_name_err_raise("wrong local variable name `%1$s' for %2$s",
bindval, name);
}
return 0;
}
return lid;
}
static VALUE
bind_local_variables(VALUE bindval)
{
const rb_binding_t *bind;
const rb_env_t *env;
GetBindingPtr(bindval, bind);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
return rb_vm_env_local_variables(env);
}
static VALUE
bind_local_variable_get(VALUE bindval, VALUE sym)
{
ID lid = check_local_id(bindval, &sym);
const rb_binding_t *bind;
const VALUE *ptr;
const rb_env_t *env;
if (!lid) goto undefined;
GetBindingPtr(bindval, bind);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
if ((ptr = get_local_variable_ptr(&env, lid)) == NULL) {
sym = ID2SYM(lid);
undefined:
rb_name_err_raise("local variable `%1$s' is not defined for %2$s",
bindval, sym);
}
return *ptr;
}
static VALUE
bind_local_variable_set(VALUE bindval, VALUE sym, VALUE val)
{
ID lid = check_local_id(bindval, &sym);
rb_binding_t *bind;
const VALUE *ptr;
const rb_env_t *env;
if (!lid) lid = rb_intern_str(sym);
GetBindingPtr(bindval, bind);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
if ((ptr = get_local_variable_ptr(&env, lid)) == NULL) {
ptr = rb_binding_add_dynavars(bindval, bind, 1, &lid);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
}
RB_OBJ_WRITE(env, ptr, val);
return val;
}
static VALUE
bind_local_variable_defined_p(VALUE bindval, VALUE sym)
{
ID lid = check_local_id(bindval, &sym);
const rb_binding_t *bind;
const rb_env_t *env;
if (!lid) return Qfalse;
GetBindingPtr(bindval, bind);
env = VM_ENV_ENVVAL_PTR(vm_block_ep(&bind->block));
return get_local_variable_ptr(&env, lid) ? Qtrue : Qfalse;
}
static VALUE
bind_receiver(VALUE bindval)
{
const rb_binding_t *bind;
GetBindingPtr(bindval, bind);
return vm_block_self(&bind->block);
}
static VALUE
bind_location(VALUE bindval)
{
VALUE loc[2];
const rb_binding_t *bind;
GetBindingPtr(bindval, bind);
loc[0] = pathobj_path(bind->pathobj);
loc[1] = INT2FIX(bind->first_lineno);
return rb_ary_new4(2, loc);
}
static VALUE
cfunc_proc_new(VALUE klass, VALUE ifunc, int8_t is_lambda)
{
rb_proc_t *proc;
cfunc_proc_t *sproc;
VALUE procval = TypedData_Make_Struct(klass, cfunc_proc_t, &proc_data_type, sproc);
VALUE *ep;
proc = &sproc->basic;
vm_block_type_set(&proc->block, block_type_ifunc);
*(VALUE **)&proc->block.as.captured.ep = ep = sproc->env + VM_ENV_DATA_SIZE-1;
ep[VM_ENV_DATA_INDEX_FLAGS] = VM_FRAME_MAGIC_IFUNC | VM_FRAME_FLAG_CFRAME | VM_ENV_FLAG_LOCAL | VM_ENV_FLAG_ESCAPED;
ep[VM_ENV_DATA_INDEX_ME_CREF] = Qfalse;
ep[VM_ENV_DATA_INDEX_SPECVAL] = VM_BLOCK_HANDLER_NONE;
ep[VM_ENV_DATA_INDEX_ENV] = Qundef;
RB_OBJ_WRITE(procval, &proc->block.as.captured.code.ifunc, ifunc);
proc->is_lambda = is_lambda;
return procval;
}
static VALUE
sym_proc_new(VALUE klass, VALUE sym)
{
VALUE procval = rb_proc_alloc(klass);
rb_proc_t *proc;
GetProcPtr(procval, proc);
vm_block_type_set(&proc->block, block_type_symbol);
RB_OBJ_WRITE(procval, &proc->block.as.symbol, sym);
return procval;
}
struct vm_ifunc *
rb_vm_ifunc_new(VALUE (*func)(ANYARGS), const void *data, int min_argc, int max_argc)
{
union {
struct vm_ifunc_argc argc;
VALUE packed;
} arity;
if (min_argc < UNLIMITED_ARGUMENTS ||
#if SIZEOF_INT * 2 > SIZEOF_VALUE
min_argc >= (int)(1U << (SIZEOF_VALUE * CHAR_BIT) / 2) ||
#endif
0) {
rb_raise(rb_eRangeError, "minimum argument number out of range: %d",
min_argc);
}
if (max_argc < UNLIMITED_ARGUMENTS ||
#if SIZEOF_INT * 2 > SIZEOF_VALUE
max_argc >= (int)(1U << (SIZEOF_VALUE * CHAR_BIT) / 2) ||
#endif
0) {
rb_raise(rb_eRangeError, "maximum argument number out of range: %d",
max_argc);
}
arity.argc.min = min_argc;
arity.argc.max = max_argc;
return IFUNC_NEW(func, data, arity.packed);
}
MJIT_FUNC_EXPORTED VALUE
rb_func_proc_new(rb_block_call_func_t func, VALUE val)
{
struct vm_ifunc *ifunc = rb_vm_ifunc_proc_new(func, (void *)val);
return cfunc_proc_new(rb_cProc, (VALUE)ifunc, 0);
}
VALUE
rb_func_lambda_new(rb_block_call_func_t func, VALUE val, int min_argc, int max_argc)
{
struct vm_ifunc *ifunc = rb_vm_ifunc_new(func, (void *)val, min_argc, max_argc);
return cfunc_proc_new(rb_cProc, (VALUE)ifunc, 1);
}
static const char proc_without_block[] = "tried to create Proc object without a block";
static VALUE
proc_new(VALUE klass, int8_t is_lambda)
{
VALUE procval;
const rb_execution_context_t *ec = GET_EC();
rb_control_frame_t *cfp = ec->cfp;
VALUE block_handler;
if ((block_handler = rb_vm_frame_block_handler(cfp)) == VM_BLOCK_HANDLER_NONE) {
#if !PROC_NEW_REQUIRES_BLOCK
cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
if ((block_handler = rb_vm_frame_block_handler(cfp)) != VM_BLOCK_HANDLER_NONE) {
if (is_lambda) {
rb_warn(proc_without_block);
}
}
#else
if (0)
#endif
else {
rb_raise(rb_eArgError, proc_without_block);
}
}
switch (vm_block_handler_type(block_handler)) {
case block_handler_type_proc:
procval = VM_BH_TO_PROC(block_handler);
if (RBASIC_CLASS(procval) == klass) {
return procval;
}
else {
VALUE newprocval = rb_proc_dup(procval);
RBASIC_SET_CLASS(newprocval, klass);
return newprocval;
}
break;
case block_handler_type_symbol:
return (klass != rb_cProc) ?
sym_proc_new(klass, VM_BH_TO_SYMBOL(block_handler)) :
rb_sym_to_proc(VM_BH_TO_SYMBOL(block_handler));
break;
case block_handler_type_ifunc:
case block_handler_type_iseq:
return rb_vm_make_proc_lambda(ec, VM_BH_TO_CAPT_BLOCK(block_handler), klass, is_lambda);
}
VM_UNREACHABLE(proc_new);
return Qnil;
}
static VALUE
rb_proc_s_new(int argc, VALUE *argv, VALUE klass)
{
VALUE block = proc_new(klass, FALSE);
rb_obj_call_init(block, argc, argv);
return block;
}
VALUE
rb_block_proc(void)
{
return proc_new(rb_cProc, FALSE);
}
VALUE
rb_block_lambda(void)
{
return proc_new(rb_cProc, TRUE);
}
#if 0
static VALUE
proc_call(int argc, VALUE *argv, VALUE procval)
{
}
#endif
#if SIZEOF_LONG > SIZEOF_INT
static inline int
check_argc(long argc)
{
if (argc > INT_MAX || argc < 0) {
rb_raise(rb_eArgError, "too many arguments (%lu)",
(unsigned long)argc);
}
return (int)argc;
}
#else
#define check_argc(argc) (argc)
#endif
VALUE
rb_proc_call(VALUE self, VALUE args)
{
VALUE vret;
rb_proc_t *proc;
GetProcPtr(self, proc);
vret = rb_vm_invoke_proc(GET_EC(), proc,
check_argc(RARRAY_LEN(args)), RARRAY_CONST_PTR(args),
VM_BLOCK_HANDLER_NONE);
RB_GC_GUARD(self);
RB_GC_GUARD(args);
return vret;
}
static VALUE
proc_to_block_handler(VALUE procval)
{
return NIL_P(procval) ? VM_BLOCK_HANDLER_NONE : procval;
}
VALUE
rb_proc_call_with_block(VALUE self, int argc, const VALUE *argv, VALUE passed_procval)
{
rb_execution_context_t *ec = GET_EC();
VALUE vret;
rb_proc_t *proc;
GetProcPtr(self, proc);
vret = rb_vm_invoke_proc(ec, proc, argc, argv, proc_to_block_handler(passed_procval));
RB_GC_GUARD(self);
return vret;
}
static VALUE
proc_arity(VALUE self)
{
int arity = rb_proc_arity(self);
return INT2FIX(arity);
}
static inline int
rb_iseq_min_max_arity(const rb_iseq_t *iseq, int *max)
{
*max = iseq->body->param.flags.has_rest == FALSE ?
iseq->body->param.lead_num + iseq->body->param.opt_num + iseq->body->param.post_num +
(iseq->body->param.flags.has_kw == TRUE || iseq->body->param.flags.has_kwrest == TRUE)
: UNLIMITED_ARGUMENTS;
return iseq->body->param.lead_num + iseq->body->param.post_num + (iseq->body->param.flags.has_kw && iseq->body->param.keyword->required_num > 0);
}
static int
rb_vm_block_min_max_arity(const struct rb_block *block, int *max)
{
again:
switch (vm_block_type(block)) {
case block_type_iseq:
return rb_iseq_min_max_arity(rb_iseq_check(block->as.captured.code.iseq), max);
case block_type_proc:
block = vm_proc_block(block->as.proc);
goto again;
case block_type_ifunc:
{
const struct vm_ifunc *ifunc = block->as.captured.code.ifunc;
if (IS_METHOD_PROC_IFUNC(ifunc)) {
return method_min_max_arity((VALUE)ifunc->data, max);
}
*max = ifunc->argc.max;
return ifunc->argc.min;
}
case block_type_symbol:
break;
}
*max = UNLIMITED_ARGUMENTS;
return 0;
}
static int
rb_proc_min_max_arity(VALUE self, int *max)
{
rb_proc_t *proc;
GetProcPtr(self, proc);
return rb_vm_block_min_max_arity(&proc->block, max);
}
int
rb_proc_arity(VALUE self)
{
rb_proc_t *proc;
int max, min;
GetProcPtr(self, proc);
min = rb_vm_block_min_max_arity(&proc->block, &max);
return (proc->is_lambda ? min == max : max != UNLIMITED_ARGUMENTS) ? min : -min-1;
}
static void
block_setup(struct rb_block *block, VALUE block_handler)
{
switch (vm_block_handler_type(block_handler)) {
case block_handler_type_iseq:
block->type = block_type_iseq;
block->as.captured = *VM_BH_TO_ISEQ_BLOCK(block_handler);
break;
case block_handler_type_ifunc:
block->type = block_type_ifunc;
block->as.captured = *VM_BH_TO_IFUNC_BLOCK(block_handler);
break;
case block_handler_type_symbol:
block->type = block_type_symbol;
block->as.symbol = VM_BH_TO_SYMBOL(block_handler);
break;
case block_handler_type_proc:
block->type = block_type_proc;
block->as.proc = VM_BH_TO_PROC(block_handler);
}
}
int
rb_block_arity(void)
{
int min, max;
const rb_execution_context_t *ec = GET_EC();
rb_control_frame_t *cfp = ec->cfp;
VALUE block_handler = rb_vm_frame_block_handler(cfp);
struct rb_block block;
if (block_handler == VM_BLOCK_HANDLER_NONE) {
rb_raise(rb_eArgError, "no block given");
}
block_setup(&block, block_handler);
min = rb_vm_block_min_max_arity(&block, &max);
switch (vm_block_type(&block)) {
case block_handler_type_symbol:
return -1;
case block_handler_type_proc:
{
VALUE procval = block_handler;
rb_proc_t *proc;
GetProcPtr(procval, proc);
return (proc->is_lambda ? min == max : max != UNLIMITED_ARGUMENTS) ? min : -min-1;
}
default:
return max != UNLIMITED_ARGUMENTS ? min : -min-1;
}
}
int
rb_block_min_max_arity(int *max)
{
const rb_execution_context_t *ec = GET_EC();
rb_control_frame_t *cfp = ec->cfp;
VALUE block_handler = rb_vm_frame_block_handler(cfp);
struct rb_block block;
if (block_handler == VM_BLOCK_HANDLER_NONE) {
rb_raise(rb_eArgError, "no block given");
}
block_setup(&block, block_handler);
return rb_vm_block_min_max_arity(&block, max);
}
const rb_iseq_t *
rb_proc_get_iseq(VALUE self, int *is_proc)
{
const rb_proc_t *proc;
const struct rb_block *block;
GetProcPtr(self, proc);
block = &proc->block;
if (is_proc) *is_proc = !proc->is_lambda;
switch (vm_block_type(block)) {
case block_type_iseq:
return rb_iseq_check(block->as.captured.code.iseq);
case block_type_proc:
return rb_proc_get_iseq(block->as.proc, is_proc);
case block_type_ifunc:
{
const struct vm_ifunc *ifunc = block->as.captured.code.ifunc;
if (IS_METHOD_PROC_IFUNC(ifunc)) {
if (is_proc) *is_proc = 0;
return rb_method_iseq((VALUE)ifunc->data);
}
else {
return NULL;
}
}
case block_type_symbol:
return NULL;
}
VM_UNREACHABLE(rb_proc_get_iseq);
return NULL;
}
static VALUE
iseq_location(const rb_iseq_t *iseq)
{
VALUE loc[2];
if (!iseq) return Qnil;
rb_iseq_check(iseq);
loc[0] = rb_iseq_path(iseq);
loc[1] = iseq->body->location.first_lineno;
return rb_ary_new4(2, loc);
}
VALUE
rb_proc_location(VALUE self)
{
return iseq_location(rb_proc_get_iseq(self, 0));
}
VALUE
rb_unnamed_parameters(int arity)
{
VALUE a, param = rb_ary_new2((arity < 0) ? -arity : arity);
int n = (arity < 0) ? ~arity : arity;
ID req, rest;
CONST_ID(req, "req");
a = rb_ary_new3(1, ID2SYM(req));
OBJ_FREEZE(a);
for (; n; --n) {
rb_ary_push(param, a);
}
if (arity < 0) {
CONST_ID(rest, "rest");
rb_ary_store(param, ~arity, rb_ary_new3(1, ID2SYM(rest)));
}
return param;
}
static VALUE
rb_proc_parameters(VALUE self)
{
int is_proc;
const rb_iseq_t *iseq = rb_proc_get_iseq(self, &is_proc);
if (!iseq) {
return rb_unnamed_parameters(rb_proc_arity(self));
}
return rb_iseq_parameters(iseq, is_proc);
}
st_index_t
rb_hash_proc(st_index_t hash, VALUE prc)
{
rb_proc_t *proc;
GetProcPtr(prc, proc);
hash = rb_hash_uint(hash, (st_index_t)proc->block.as.captured.code.val);
hash = rb_hash_uint(hash, (st_index_t)proc->block.as.captured.self);
return rb_hash_uint(hash, (st_index_t)proc->block.as.captured.ep >> 16);
}
MJIT_FUNC_EXPORTED VALUE
rb_sym_to_proc(VALUE sym)
{
static VALUE sym_proc_cache = Qfalse;
enum {SYM_PROC_CACHE_SIZE = 67};
VALUE proc;
long index;
ID id;
if (!sym_proc_cache) {
sym_proc_cache = rb_ary_tmp_new(SYM_PROC_CACHE_SIZE * 2);
rb_gc_register_mark_object(sym_proc_cache);
rb_ary_store(sym_proc_cache, SYM_PROC_CACHE_SIZE*2 - 1, Qnil);
}
id = SYM2ID(sym);
index = (id % SYM_PROC_CACHE_SIZE) << 1;
if (RARRAY_AREF(sym_proc_cache, index) == sym) {
return RARRAY_AREF(sym_proc_cache, index + 1);
}
else {
proc = sym_proc_new(rb_cProc, ID2SYM(id));
RARRAY_ASET(sym_proc_cache, index, sym);
RARRAY_ASET(sym_proc_cache, index + 1, proc);
return proc;
}
}
static VALUE
proc_hash(VALUE self)
{
st_index_t hash;
hash = rb_hash_start(0);
hash = rb_hash_proc(hash, self);
hash = rb_hash_end(hash);
return ST2FIX(hash);
}
VALUE
rb_block_to_s(VALUE self, const struct rb_block *block, const char *additional_info)
{
VALUE cname = rb_obj_class(self);
VALUE str = rb_sprintf("#<%"PRIsVALUE":", cname);
again:
switch (vm_block_type(block)) {
case block_type_proc:
block = vm_proc_block(block->as.proc);
goto again;
case block_type_iseq:
{
const rb_iseq_t *iseq = rb_iseq_check(block->as.captured.code.iseq);
rb_str_catf(str, "%p@%"PRIsVALUE":%d", (void *)self,
rb_iseq_path(iseq),
FIX2INT(iseq->body->location.first_lineno));
}
break;
case block_type_symbol:
rb_str_catf(str, "%p(&%+"PRIsVALUE")", (void *)self, block->as.symbol);
break;
case block_type_ifunc:
rb_str_catf(str, "%p", (void *)block->as.captured.code.ifunc);
break;
}
if (additional_info) rb_str_cat_cstr(str, additional_info);
rb_str_cat_cstr(str, ">");
OBJ_INFECT_RAW(str, self);
return str;
}
static VALUE
proc_to_s(VALUE self)
{
const rb_proc_t *proc;
GetProcPtr(self, proc);
return rb_block_to_s(self, &proc->block, proc->is_lambda ? " (lambda)" : NULL);
}
static VALUE
proc_to_proc(VALUE self)
{
return self;
}
static void
bm_mark(void *ptr)
{
struct METHOD *data = ptr;
rb_gc_mark(data->recv);
rb_gc_mark(data->klass);
rb_gc_mark(data->iclass);
rb_gc_mark((VALUE)data->me);
}
static size_t
bm_memsize(const void *ptr)
{
return sizeof(struct METHOD);
}
static const rb_data_type_t method_data_type = {
"method",
{
bm_mark,
RUBY_TYPED_DEFAULT_FREE,
bm_memsize,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY
};
VALUE
rb_obj_is_method(VALUE m)
{
if (rb_typeddata_is_kind_of(m, &method_data_type)) {
return Qtrue;
}
else {
return Qfalse;
}
}
static int
respond_to_missing_p(VALUE klass, VALUE obj, VALUE sym, int scope)
{
ID rmiss = idRespond_to_missing;
if (obj == Qundef) return 0;
if (rb_method_basic_definition_p(klass, rmiss)) return 0;
return RTEST(rb_funcall(obj, rmiss, 2, sym, scope ? Qfalse : Qtrue));
}
static VALUE
mnew_missing(VALUE klass, VALUE obj, ID id, VALUE mclass)
{
struct METHOD *data;
VALUE method = TypedData_Make_Struct(mclass, struct METHOD, &method_data_type, data);
rb_method_entry_t *me;
rb_method_definition_t *def;
RB_OBJ_WRITE(method, &data->recv, obj);
RB_OBJ_WRITE(method, &data->klass, klass);
def = ZALLOC(rb_method_definition_t);
def->type = VM_METHOD_TYPE_MISSING;
def->original_id = id;
me = rb_method_entry_create(id, klass, METHOD_VISI_UNDEF, def);
RB_OBJ_WRITE(method, &data->me, me);
OBJ_INFECT(method, klass);
return method;
}
static VALUE
mnew_internal(const rb_method_entry_t *me, VALUE klass, VALUE iclass,
VALUE obj, ID id, VALUE mclass, int scope, int error)
{
struct METHOD *data;
VALUE method;
rb_method_visibility_t visi = METHOD_VISI_UNDEF;
again:
if (UNDEFINED_METHOD_ENTRY_P(me)) {
if (respond_to_missing_p(klass, obj, ID2SYM(id), scope)) {
return mnew_missing(klass, obj, id, mclass);
}
if (!error) return Qnil;
rb_print_undef(klass, id, METHOD_VISI_UNDEF);
}
if (visi == METHOD_VISI_UNDEF) {
visi = METHOD_ENTRY_VISI(me);
if (scope && (visi != METHOD_VISI_PUBLIC)) {
if (!error) return Qnil;
rb_print_inaccessible(klass, id, visi);
}
}
if (me->def->type == VM_METHOD_TYPE_ZSUPER) {
if (me->defined_class) {
VALUE klass = RCLASS_SUPER(RCLASS_ORIGIN(me->defined_class));
id = me->def->original_id;
me = (rb_method_entry_t *)rb_callable_method_entry_without_refinements(klass, id, &iclass);
}
else {
VALUE klass = RCLASS_SUPER(me->owner);
id = me->def->original_id;
me = rb_method_entry_without_refinements(klass, id, &iclass);
}
goto again;
}
method = TypedData_Make_Struct(mclass, struct METHOD, &method_data_type, data);
RB_OBJ_WRITE(method, &data->recv, obj);
RB_OBJ_WRITE(method, &data->klass, klass);
RB_OBJ_WRITE(method, &data->iclass, iclass);
RB_OBJ_WRITE(method, &data->me, me);
OBJ_INFECT(method, klass);
return method;
}
static VALUE
mnew_from_me(const rb_method_entry_t *me, VALUE klass, VALUE iclass,
VALUE obj, ID id, VALUE mclass, int scope)
{
return mnew_internal(me, klass, iclass, obj, id, mclass, scope, TRUE);
}
static VALUE
mnew(VALUE klass, VALUE obj, ID id, VALUE mclass, int scope)
{
const rb_method_entry_t *me;
VALUE iclass = Qnil;
if (obj == Qundef) {
me = rb_method_entry_without_refinements(klass, id, &iclass);
}
else {
me = (rb_method_entry_t *)rb_callable_method_entry_without_refinements(klass, id, &iclass);
}
return mnew_from_me(me, klass, iclass, obj, id, mclass, scope);
}
static inline VALUE
method_entry_defined_class(const rb_method_entry_t *me)
{
VALUE defined_class = me->defined_class;
return defined_class ? defined_class : me->owner;
}
static VALUE
method_eq(VALUE method, VALUE other)
{
struct METHOD *m1, *m2;
VALUE klass1, klass2;
if (!rb_obj_is_method(other))
return Qfalse;
if (CLASS_OF(method) != CLASS_OF(other))
return Qfalse;
Check_TypedStruct(method, &method_data_type);
m1 = (struct METHOD *)DATA_PTR(method);
m2 = (struct METHOD *)DATA_PTR(other);
klass1 = method_entry_defined_class(m1->me);
klass2 = method_entry_defined_class(m2->me);
if (!rb_method_entry_eq(m1->me, m2->me) ||
klass1 != klass2 ||
m1->klass != m2->klass ||
m1->recv != m2->recv) {
return Qfalse;
}
return Qtrue;
}
static VALUE
method_hash(VALUE method)
{
struct METHOD *m;
st_index_t hash;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, m);
hash = rb_hash_start((st_index_t)m->recv);
hash = rb_hash_method_entry(hash, m->me);
hash = rb_hash_end(hash);
return ST2FIX(hash);
}
static VALUE
method_unbind(VALUE obj)
{
VALUE method;
struct METHOD *orig, *data;
TypedData_Get_Struct(obj, struct METHOD, &method_data_type, orig);
method = TypedData_Make_Struct(rb_cUnboundMethod, struct METHOD,
&method_data_type, data);
RB_OBJ_WRITE(method, &data->recv, Qundef);
RB_OBJ_WRITE(method, &data->klass, orig->klass);
RB_OBJ_WRITE(method, &data->me, rb_method_entry_clone(orig->me));
OBJ_INFECT(method, obj);
return method;
}
static VALUE
method_receiver(VALUE obj)
{
struct METHOD *data;
TypedData_Get_Struct(obj, struct METHOD, &method_data_type, data);
return data->recv;
}
static VALUE
method_name(VALUE obj)
{
struct METHOD *data;
TypedData_Get_Struct(obj, struct METHOD, &method_data_type, data);
return ID2SYM(data->me->called_id);
}
static VALUE
method_original_name(VALUE obj)
{
struct METHOD *data;
TypedData_Get_Struct(obj, struct METHOD, &method_data_type, data);
return ID2SYM(data->me->def->original_id);
}
static VALUE
method_owner(VALUE obj)
{
struct METHOD *data;
TypedData_Get_Struct(obj, struct METHOD, &method_data_type, data);
return data->me->owner;
}
void
rb_method_name_error(VALUE klass, VALUE str)
{
#define MSG(s) rb_fstring_lit("undefined method `%1$s' for"s" `%2$s'")
VALUE c = klass;
VALUE s;
if (FL_TEST(c, FL_SINGLETON)) {
VALUE obj = rb_ivar_get(klass, attached);
switch (BUILTIN_TYPE(obj)) {
case T_MODULE:
case T_CLASS:
c = obj;
s = MSG("");
}
goto normal_class;
}
else if (RB_TYPE_P(c, T_MODULE)) {
s = MSG(" module");
}
else {
normal_class:
s = MSG(" class");
}
rb_name_err_raise_str(s, c, str);
#undef MSG
}
static VALUE
obj_method(VALUE obj, VALUE vid, int scope)
{
ID id = rb_check_id(&vid);
const VALUE klass = CLASS_OF(obj);
const VALUE mclass = rb_cMethod;
if (!id) {
if (respond_to_missing_p(klass, obj, vid, scope)) {
id = rb_intern_str(vid);
return mnew_missing(klass, obj, id, mclass);
}
rb_method_name_error(klass, vid);
}
return mnew(klass, obj, id, mclass, scope);
}
VALUE
rb_obj_method(VALUE obj, VALUE vid)
{
return obj_method(obj, vid, FALSE);
}
VALUE
rb_obj_public_method(VALUE obj, VALUE vid)
{
return obj_method(obj, vid, TRUE);
}
VALUE
rb_obj_singleton_method(VALUE obj, VALUE vid)
{
const rb_method_entry_t *me;
VALUE klass = rb_singleton_class_get(obj);
ID id = rb_check_id(&vid);
if (NIL_P(klass) || NIL_P(klass = RCLASS_ORIGIN(klass))) {
undef:
rb_name_err_raise("undefined singleton method `%1$s' for `%2$s'",
obj, vid);
}
if (!id) {
if (respond_to_missing_p(klass, obj, vid, FALSE)) {
id = rb_intern_str(vid);
return mnew_missing(klass, obj, id, rb_cMethod);
}
goto undef;
}
me = rb_method_entry_at(klass, id);
if (UNDEFINED_METHOD_ENTRY_P(me) ||
UNDEFINED_REFINED_METHOD_P(me->def)) {
vid = ID2SYM(id);
goto undef;
}
return mnew_from_me(me, klass, klass, obj, id, rb_cMethod, FALSE);
}
static VALUE
rb_mod_instance_method(VALUE mod, VALUE vid)
{
ID id = rb_check_id(&vid);
if (!id) {
rb_method_name_error(mod, vid);
}
return mnew(mod, Qundef, id, rb_cUnboundMethod, FALSE);
}
static VALUE
rb_mod_public_instance_method(VALUE mod, VALUE vid)
{
ID id = rb_check_id(&vid);
if (!id) {
rb_method_name_error(mod, vid);
}
return mnew(mod, Qundef, id, rb_cUnboundMethod, TRUE);
}
static VALUE
rb_mod_define_method(int argc, VALUE *argv, VALUE mod)
{
ID id;
VALUE body;
VALUE name;
const rb_cref_t *cref = rb_vm_cref_in_context(mod, mod);
const rb_scope_visibility_t default_scope_visi = {METHOD_VISI_PUBLIC, FALSE};
const rb_scope_visibility_t *scope_visi = &default_scope_visi;
int is_method = FALSE;
if (cref) {
scope_visi = CREF_SCOPE_VISI(cref);
}
rb_check_arity(argc, 1, 2);
name = argv[0];
id = rb_check_id(&name);
if (argc == 1) {
#if PROC_NEW_REQUIRES_BLOCK
body = rb_block_lambda();
#else
const rb_execution_context_t *ec = GET_EC();
VALUE block_handler = rb_vm_frame_block_handler(ec->cfp);
if (block_handler == VM_BLOCK_HANDLER_NONE) rb_raise(rb_eArgError, proc_without_block);
switch (vm_block_handler_type(block_handler)) {
case block_handler_type_proc:
body = VM_BH_TO_PROC(block_handler);
break;
case block_handler_type_symbol:
body = rb_sym_to_proc(VM_BH_TO_SYMBOL(block_handler));
break;
case block_handler_type_iseq:
case block_handler_type_ifunc:
body = rb_vm_make_lambda(ec, VM_BH_TO_CAPT_BLOCK(block_handler), rb_cProc);
}
#endif
}
else {
body = argv[1];
if (rb_obj_is_method(body)) {
is_method = TRUE;
}
else if (rb_obj_is_proc(body)) {
is_method = FALSE;
}
else {
rb_raise(rb_eTypeError,
"wrong argument type %s (expected Proc/Method)",
rb_obj_classname(body));
}
}
if (!id) id = rb_to_id(name);
if (is_method) {
struct METHOD *method = (struct METHOD *)DATA_PTR(body);
if (method->me->owner != mod && !RB_TYPE_P(method->me->owner, T_MODULE) &&
!RTEST(rb_class_inherited_p(mod, method->me->owner))) {
if (FL_TEST(method->me->owner, FL_SINGLETON)) {
rb_raise(rb_eTypeError,
"can't bind singleton method to a different class");
}
else {
rb_raise(rb_eTypeError,
"bind argument must be a subclass of % "PRIsVALUE,
method->me->owner);
}
}
rb_method_entry_set(mod, id, method->me, scope_visi->method_visi);
if (scope_visi->module_func) {
rb_method_entry_set(rb_singleton_class(mod), id, method->me, METHOD_VISI_PUBLIC);
}
RB_GC_GUARD(body);
}
else {
VALUE procval = rb_proc_dup(body);
if (vm_proc_iseq(procval) != NULL) {
rb_proc_t *proc;
GetProcPtr(procval, proc);
proc->is_lambda = TRUE;
proc->is_from_method = TRUE;
}
rb_add_method(mod, id, VM_METHOD_TYPE_BMETHOD, (void *)procval, scope_visi->method_visi);
if (scope_visi->module_func) {
rb_add_method(rb_singleton_class(mod), id, VM_METHOD_TYPE_BMETHOD, (void *)body, METHOD_VISI_PUBLIC);
}
}
return ID2SYM(id);
}
static VALUE
rb_obj_define_method(int argc, VALUE *argv, VALUE obj)
{
VALUE klass = rb_singleton_class(obj);
return rb_mod_define_method(argc, argv, klass);
}
static VALUE
top_define_method(int argc, VALUE *argv, VALUE obj)
{
rb_thread_t *th = GET_THREAD();
VALUE klass;
klass = th->top_wrapper;
if (klass) {
rb_warning("main.define_method in the wrapped load is effective only in wrapper module");
}
else {
klass = rb_cObject;
}
return rb_mod_define_method(argc, argv, klass);
}
static VALUE
method_clone(VALUE self)
{
VALUE clone;
struct METHOD *orig, *data;
TypedData_Get_Struct(self, struct METHOD, &method_data_type, orig);
clone = TypedData_Make_Struct(CLASS_OF(self), struct METHOD, &method_data_type, data);
CLONESETUP(clone, self);
RB_OBJ_WRITE(clone, &data->recv, orig->recv);
RB_OBJ_WRITE(clone, &data->klass, orig->klass);
RB_OBJ_WRITE(clone, &data->me, rb_method_entry_clone(orig->me));
return clone;
}
VALUE
rb_method_call(int argc, const VALUE *argv, VALUE method)
{
VALUE procval = rb_block_given_p() ? rb_block_proc() : Qnil;
return rb_method_call_with_block(argc, argv, method, procval);
}
static const rb_callable_method_entry_t *
method_callable_method_entry(const struct METHOD *data)
{
if (data->me->defined_class == 0) rb_bug("method_callable_method_entry: not callable.");
return (const rb_callable_method_entry_t *)data->me;
}
static inline VALUE
call_method_data(rb_execution_context_t *ec, const struct METHOD *data,
int argc, const VALUE *argv, VALUE passed_procval)
{
vm_passed_block_handler_set(ec, proc_to_block_handler(passed_procval));
return rb_vm_call(ec, data->recv, data->me->called_id, argc, argv,
method_callable_method_entry(data));
}
static VALUE
call_method_data_safe(rb_execution_context_t *ec, const struct METHOD *data,
int argc, const VALUE *argv, VALUE passed_procval,
int safe)
{
VALUE result = Qnil;
enum ruby_tag_type state;
EC_PUSH_TAG(ec);
if ((state = EC_EXEC_TAG()) == TAG_NONE) {
NO_CLOBBERED(result) = call_method_data(ec, data, argc, argv, passed_procval);
}
EC_POP_TAG();
rb_set_safe_level_force(safe);
if (state)
EC_JUMP_TAG(ec, state);
return result;
}
VALUE
rb_method_call_with_block(int argc, const VALUE *argv, VALUE method, VALUE passed_procval)
{
const struct METHOD *data;
rb_execution_context_t *ec = GET_EC();
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
if (data->recv == Qundef) {
rb_raise(rb_eTypeError, "can't call unbound method; bind first");
}
if (OBJ_TAINTED(method)) {
const int safe_level_to_run = RUBY_SAFE_LEVEL_MAX;
int safe = rb_safe_level();
if (safe < safe_level_to_run) {
rb_set_safe_level_force(safe_level_to_run);
return call_method_data_safe(ec, data, argc, argv, passed_procval, safe);
}
}
return call_method_data(ec, data, argc, argv, passed_procval);
}
static VALUE
umethod_bind(VALUE method, VALUE recv)
{
struct METHOD *data, *bound;
VALUE methclass, klass;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
methclass = data->me->owner;
if (!RB_TYPE_P(methclass, T_MODULE) &&
methclass != CLASS_OF(recv) && !rb_obj_is_kind_of(recv, methclass)) {
if (FL_TEST(methclass, FL_SINGLETON)) {
rb_raise(rb_eTypeError,
"singleton method called for a different object");
}
else {
rb_raise(rb_eTypeError, "bind argument must be an instance of % "PRIsVALUE,
methclass);
}
}
klass = CLASS_OF(recv);
method = TypedData_Make_Struct(rb_cMethod, struct METHOD, &method_data_type, bound);
RB_OBJ_WRITE(method, &bound->recv, recv);
RB_OBJ_WRITE(method, &bound->klass, data->klass);
RB_OBJ_WRITE(method, &bound->me, rb_method_entry_clone(data->me));
if (RB_TYPE_P(bound->me->owner, T_MODULE)) {
VALUE ic = rb_class_search_ancestor(klass, bound->me->owner);
if (ic) {
klass = ic;
}
else {
klass = rb_include_class_new(methclass, klass);
}
RB_OBJ_WRITE(method, &bound->me, rb_method_entry_complement_defined_class(bound->me, bound->me->called_id, klass));
}
return method;
}
static int
rb_method_entry_min_max_arity(const rb_method_entry_t *me, int *max)
{
const rb_method_definition_t *def = me->def;
again:
if (!def) return *max = 0;
switch (def->type) {
case VM_METHOD_TYPE_CFUNC:
if (def->body.cfunc.argc < 0) {
*max = UNLIMITED_ARGUMENTS;
return 0;
}
return *max = check_argc(def->body.cfunc.argc);
case VM_METHOD_TYPE_ZSUPER:
*max = UNLIMITED_ARGUMENTS;
return 0;
case VM_METHOD_TYPE_ATTRSET:
return *max = 1;
case VM_METHOD_TYPE_IVAR:
return *max = 0;
case VM_METHOD_TYPE_ALIAS:
def = def->body.alias.original_me->def;
goto again;
case VM_METHOD_TYPE_BMETHOD:
return rb_proc_min_max_arity(def->body.bmethod.proc, max);
case VM_METHOD_TYPE_ISEQ:
return rb_iseq_min_max_arity(rb_iseq_check(def->body.iseq.iseqptr), max);
case VM_METHOD_TYPE_UNDEF:
case VM_METHOD_TYPE_NOTIMPLEMENTED:
return *max = 0;
case VM_METHOD_TYPE_MISSING:
*max = UNLIMITED_ARGUMENTS;
return 0;
case VM_METHOD_TYPE_OPTIMIZED: {
switch (def->body.optimize_type) {
case OPTIMIZED_METHOD_TYPE_SEND:
*max = UNLIMITED_ARGUMENTS;
return 0;
case OPTIMIZED_METHOD_TYPE_CALL:
*max = UNLIMITED_ARGUMENTS;
return 0;
case OPTIMIZED_METHOD_TYPE_BLOCK_CALL:
*max = UNLIMITED_ARGUMENTS;
return 0;
default:
break;
}
break;
}
case VM_METHOD_TYPE_REFINED:
*max = UNLIMITED_ARGUMENTS;
return 0;
}
rb_bug("rb_method_entry_min_max_arity: invalid method entry type (%d)", def->type);
UNREACHABLE_RETURN(Qnil);
}
int
rb_method_entry_arity(const rb_method_entry_t *me)
{
int max, min = rb_method_entry_min_max_arity(me, &max);
return min == max ? min : -min-1;
}
static VALUE
method_arity_m(VALUE method)
{
int n = method_arity(method);
return INT2FIX(n);
}
static int
method_arity(VALUE method)
{
struct METHOD *data;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
return rb_method_entry_arity(data->me);
}
static const rb_method_entry_t *
original_method_entry(VALUE mod, ID id)
{
const rb_method_entry_t *me;
while ((me = rb_method_entry(mod, id)) != 0) {
const rb_method_definition_t *def = me->def;
if (def->type != VM_METHOD_TYPE_ZSUPER) break;
mod = RCLASS_SUPER(me->owner);
id = def->original_id;
}
return me;
}
static int
method_min_max_arity(VALUE method, int *max)
{
const struct METHOD *data;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
return rb_method_entry_min_max_arity(data->me, max);
}
int
rb_mod_method_arity(VALUE mod, ID id)
{
const rb_method_entry_t *me = original_method_entry(mod, id);
if (!me) return 0;
return rb_method_entry_arity(me);
}
int
rb_obj_method_arity(VALUE obj, ID id)
{
return rb_mod_method_arity(CLASS_OF(obj), id);
}
const rb_method_definition_t *
rb_method_def(VALUE method)
{
const struct METHOD *data;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
return data->me->def;
}
static const rb_iseq_t *
method_def_iseq(const rb_method_definition_t *def)
{
switch (def->type) {
case VM_METHOD_TYPE_ISEQ:
return rb_iseq_check(def->body.iseq.iseqptr);
case VM_METHOD_TYPE_BMETHOD:
return rb_proc_get_iseq(def->body.bmethod.proc, 0);
case VM_METHOD_TYPE_ALIAS:
return method_def_iseq(def->body.alias.original_me->def);
case VM_METHOD_TYPE_CFUNC:
case VM_METHOD_TYPE_ATTRSET:
case VM_METHOD_TYPE_IVAR:
case VM_METHOD_TYPE_ZSUPER:
case VM_METHOD_TYPE_UNDEF:
case VM_METHOD_TYPE_NOTIMPLEMENTED:
case VM_METHOD_TYPE_OPTIMIZED:
case VM_METHOD_TYPE_MISSING:
case VM_METHOD_TYPE_REFINED:
break;
}
return NULL;
}
const rb_iseq_t *
rb_method_iseq(VALUE method)
{
return method_def_iseq(rb_method_def(method));
}
static const rb_cref_t *
method_cref(VALUE method)
{
const rb_method_definition_t *def = rb_method_def(method);
again:
switch (def->type) {
case VM_METHOD_TYPE_ISEQ:
return def->body.iseq.cref;
case VM_METHOD_TYPE_ALIAS:
def = def->body.alias.original_me->def;
goto again;
default:
return NULL;
}
}
static VALUE
method_def_location(const rb_method_definition_t *def)
{
if (def->type == VM_METHOD_TYPE_ATTRSET || def->type == VM_METHOD_TYPE_IVAR) {
if (!def->body.attr.location)
return Qnil;
return rb_ary_dup(def->body.attr.location);
}
return iseq_location(method_def_iseq(def));
}
VALUE
rb_method_entry_location(const rb_method_entry_t *me)
{
if (!me) return Qnil;
return method_def_location(me->def);
}
VALUE
rb_mod_method_location(VALUE mod, ID id)
{
const rb_method_entry_t *me = original_method_entry(mod, id);
return rb_method_entry_location(me);
}
VALUE
rb_obj_method_location(VALUE obj, ID id)
{
return rb_mod_method_location(CLASS_OF(obj), id);
}
VALUE
rb_method_location(VALUE method)
{
return method_def_location(rb_method_def(method));
}
static VALUE
rb_method_parameters(VALUE method)
{
const rb_iseq_t *iseq = rb_method_iseq(method);
if (!iseq) {
return rb_unnamed_parameters(method_arity(method));
}
return rb_iseq_parameters(iseq, 0);
}
static VALUE
method_inspect(VALUE method)
{
struct METHOD *data;
VALUE str;
const char *sharp = "#";
VALUE mklass;
VALUE defined_class;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
str = rb_sprintf("#<% "PRIsVALUE": ", rb_obj_class(method));
OBJ_INFECT_RAW(str, method);
mklass = data->klass;
if (data->me->def->type == VM_METHOD_TYPE_ALIAS) {
defined_class = data->me->def->body.alias.original_me->owner;
}
else {
defined_class = method_entry_defined_class(data->me);
}
if (RB_TYPE_P(defined_class, T_ICLASS)) {
defined_class = RBASIC_CLASS(defined_class);
}
if (FL_TEST(mklass, FL_SINGLETON)) {
VALUE v = rb_ivar_get(mklass, attached);
if (data->recv == Qundef) {
rb_str_buf_append(str, rb_inspect(mklass));
}
else if (data->recv == v) {
rb_str_buf_append(str, rb_inspect(v));
sharp = ".";
}
else {
rb_str_buf_append(str, rb_inspect(data->recv));
rb_str_buf_cat2(str, "(");
rb_str_buf_append(str, rb_inspect(v));
rb_str_buf_cat2(str, ")");
sharp = ".";
}
}
else {
rb_str_buf_append(str, rb_inspect(mklass));
if (defined_class != mklass) {
rb_str_catf(str, "(% "PRIsVALUE")", defined_class);
}
}
rb_str_buf_cat2(str, sharp);
rb_str_append(str, rb_id2str(data->me->called_id));
if (data->me->called_id != data->me->def->original_id) {
rb_str_catf(str, "(%"PRIsVALUE")",
rb_id2str(data->me->def->original_id));
}
if (data->me->def->type == VM_METHOD_TYPE_NOTIMPLEMENTED) {
rb_str_buf_cat2(str, " (not-implemented)");
}
rb_str_buf_cat2(str, ">");
return str;
}
static VALUE
mproc(VALUE method)
{
return rb_funcallv(rb_mRubyVMFrozenCore, idProc, 0, 0);
}
static VALUE
mlambda(VALUE method)
{
return rb_funcallv(rb_mRubyVMFrozenCore, idLambda, 0, 0);
}
static VALUE
bmcall(VALUE args, VALUE method, int argc, VALUE *argv, VALUE passed_proc)
{
return rb_method_call_with_block(argc, argv, method, passed_proc);
}
VALUE
rb_proc_new(
VALUE (*func)(ANYARGS),
VALUE val)
{
VALUE procval = rb_iterate(mproc, 0, func, val);
return procval;
}
static VALUE
method_to_proc(VALUE method)
{
VALUE procval;
rb_proc_t *proc;
procval = rb_iterate(mlambda, 0, bmcall, method);
GetProcPtr(procval, proc);
proc->is_from_method = 1;
return procval;
}
static VALUE
method_super_method(VALUE method)
{
const struct METHOD *data;
VALUE super_class, iclass;
ID mid;
const rb_method_entry_t *me;
TypedData_Get_Struct(method, struct METHOD, &method_data_type, data);
iclass = data->iclass;
if (!iclass) return Qnil;
super_class = RCLASS_SUPER(RCLASS_ORIGIN(iclass));
mid = data->me->called_id;
if (!super_class) return Qnil;
me = (rb_method_entry_t *)rb_callable_method_entry_without_refinements(super_class, mid, &iclass);
if (!me) return Qnil;
return mnew_internal(me, me->owner, iclass, data->recv, mid, rb_obj_class(method), FALSE, FALSE);
}
static VALUE
localjump_xvalue(VALUE exc)
{
return rb_iv_get(exc, "@exit_value");
}
static VALUE
localjump_reason(VALUE exc)
{
return rb_iv_get(exc, "@reason");
}
rb_cref_t *rb_vm_cref_new_toplevel(void);
static const rb_env_t *
env_clone(const rb_env_t *env, const rb_cref_t *cref)
{
VALUE *new_ep;
VALUE *new_body;
const rb_env_t *new_env;
VM_ASSERT(env->ep > env->env);
VM_ASSERT(VM_ENV_ESCAPED_P(env->ep));
if (cref == NULL) {
cref = rb_vm_cref_new_toplevel();
}
new_body = ALLOC_N(VALUE, env->env_size);
MEMCPY(new_body, env->env, VALUE, env->env_size);
new_ep = &new_body[env->ep - env->env];
new_env = vm_env_new(new_ep, new_body, env->env_size, env->iseq);
RB_OBJ_WRITE(new_env, &new_ep[VM_ENV_DATA_INDEX_ME_CREF], (VALUE)cref);
VM_ASSERT(VM_ENV_ESCAPED_P(new_ep));
return new_env;
}
static VALUE
proc_binding(VALUE self)
{
VALUE bindval, binding_self = Qundef;
rb_binding_t *bind;
const rb_proc_t *proc;
const rb_iseq_t *iseq = NULL;
const struct rb_block *block;
const rb_env_t *env = NULL;
GetProcPtr(self, proc);
block = &proc->block;
again:
switch (vm_block_type(block)) {
case block_type_iseq:
iseq = block->as.captured.code.iseq;
binding_self = block->as.captured.self;
env = VM_ENV_ENVVAL_PTR(block->as.captured.ep);
break;
case block_type_proc:
GetProcPtr(block->as.proc, proc);
block = &proc->block;
goto again;
case block_type_symbol:
goto error;
case block_type_ifunc:
{
const struct vm_ifunc *ifunc = block->as.captured.code.ifunc;
if (IS_METHOD_PROC_IFUNC(ifunc)) {
VALUE method = (VALUE)ifunc->data;
VALUE name = rb_fstring_lit("<empty_iseq>");
rb_iseq_t *empty;
binding_self = method_receiver(method);
iseq = rb_method_iseq(method);
env = VM_ENV_ENVVAL_PTR(block->as.captured.ep);
env = env_clone(env, method_cref(method));
empty = rb_iseq_new(NULL, name, name, Qnil, 0, ISEQ_TYPE_TOP);
RB_OBJ_WRITE(env, &env->iseq, empty);
break;
}
else {
error:
rb_raise(rb_eArgError, "Can't create Binding from C level Proc");
return Qnil;
}
}
}
bindval = rb_binding_alloc(rb_cBinding);
GetBindingPtr(bindval, bind);
RB_OBJ_WRITE(bindval, &bind->block.as.captured.self, binding_self);
RB_OBJ_WRITE(bindval, &bind->block.as.captured.code.iseq, env->iseq);
rb_vm_block_ep_update(bindval, &bind->block, env->ep);
RB_OBJ_WRITTEN(bindval, Qundef, VM_ENV_ENVVAL(env->ep));
if (iseq) {
rb_iseq_check(iseq);
RB_OBJ_WRITE(bindval, &bind->pathobj, iseq->body->location.pathobj);
bind->first_lineno = FIX2INT(rb_iseq_first_lineno(iseq));
}
else {
RB_OBJ_WRITE(bindval, &bind->pathobj,
rb_iseq_pathobj_new(rb_fstring_lit("(binding)"), Qnil));
bind->first_lineno = 1;
}
return bindval;
}
static VALUE curry(VALUE dummy, VALUE args, int argc, VALUE *argv, VALUE passed_proc);
static VALUE
make_curry_proc(VALUE proc, VALUE passed, VALUE arity)
{
VALUE args = rb_ary_new3(3, proc, passed, arity);
rb_proc_t *procp;
int is_lambda;
GetProcPtr(proc, procp);
is_lambda = procp->is_lambda;
rb_ary_freeze(passed);
rb_ary_freeze(args);
proc = rb_proc_new(curry, args);
GetProcPtr(proc, procp);
procp->is_lambda = is_lambda;
return proc;
}
static VALUE
curry(VALUE dummy, VALUE args, int argc, VALUE *argv, VALUE passed_proc)
{
VALUE proc, passed, arity;
proc = RARRAY_AREF(args, 0);
passed = RARRAY_AREF(args, 1);
arity = RARRAY_AREF(args, 2);
passed = rb_ary_plus(passed, rb_ary_new4(argc, argv));
rb_ary_freeze(passed);
if (RARRAY_LEN(passed) < FIX2INT(arity)) {
if (!NIL_P(passed_proc)) {
rb_warn("given block not used");
}
arity = make_curry_proc(proc, passed, arity);
return arity;
}
else {
return rb_proc_call_with_block(proc, check_argc(RARRAY_LEN(passed)), RARRAY_CONST_PTR(passed), passed_proc);
}
}
static VALUE
proc_curry(int argc, const VALUE *argv, VALUE self)
{
int sarity, max_arity, min_arity = rb_proc_min_max_arity(self, &max_arity);
VALUE arity;
if (rb_check_arity(argc, 0, 1) == 0 || NIL_P(arity = argv[0])) {
arity = INT2FIX(min_arity);
}
else {
sarity = FIX2INT(arity);
if (rb_proc_lambda_p(self)) {
rb_check_arity(sarity, min_arity, max_arity);
}
}
return make_curry_proc(self, rb_ary_new(), arity);
}
static VALUE
rb_method_curry(int argc, const VALUE *argv, VALUE self)
{
VALUE proc = method_to_proc(self);
return proc_curry(argc, argv, proc);
}
static VALUE
compose(VALUE dummy, VALUE args, int argc, VALUE *argv, VALUE passed_proc)
{
VALUE f, g, fargs;
f = RARRAY_AREF(args, 0);
g = RARRAY_AREF(args, 1);
if (rb_obj_is_proc(g))
fargs = rb_proc_call_with_block(g, argc, argv, passed_proc);
else
fargs = rb_funcall_with_block(g, idCall, argc, argv, passed_proc);
if (rb_obj_is_proc(f))
return rb_proc_call(f, rb_ary_new3(1, fargs));
else
return rb_funcallv(f, idCall, 1, &fargs);
}
static VALUE
proc_compose_to_left(VALUE self, VALUE g)
{
VALUE proc, args, procs[2];
rb_proc_t *procp;
int is_lambda;
procs[0] = self;
procs[1] = g;
args = rb_ary_tmp_new_from_values(0, 2, procs);
GetProcPtr(self, procp);
is_lambda = procp->is_lambda;
proc = rb_proc_new(compose, args);
GetProcPtr(proc, procp);
procp->is_lambda = is_lambda;
return proc;
}
static VALUE
proc_compose_to_right(VALUE self, VALUE g)
{
VALUE proc, args, procs[2];
rb_proc_t *procp;
int is_lambda;
procs[0] = g;
procs[1] = self;
args = rb_ary_tmp_new_from_values(0, 2, procs);
GetProcPtr(self, procp);
is_lambda = procp->is_lambda;
proc = rb_proc_new(compose, args);
GetProcPtr(proc, procp);
procp->is_lambda = is_lambda;
return proc;
}
static VALUE
rb_method_compose_to_left(VALUE self, VALUE g)
{
VALUE proc = method_to_proc(self);
return proc_compose_to_left(proc, g);
}
static VALUE
rb_method_compose_to_right(VALUE self, VALUE g)
{
VALUE proc = method_to_proc(self);
return proc_compose_to_right(proc, g);
}
void
Init_Proc(void)
{
#undef rb_intern
rb_cProc = rb_define_class("Proc", rb_cObject);
rb_undef_alloc_func(rb_cProc);
rb_define_singleton_method(rb_cProc, "new", rb_proc_s_new, -1);
rb_add_method(rb_cProc, idCall, VM_METHOD_TYPE_OPTIMIZED,
(void *)OPTIMIZED_METHOD_TYPE_CALL, METHOD_VISI_PUBLIC);
rb_add_method(rb_cProc, rb_intern("[]"), VM_METHOD_TYPE_OPTIMIZED,
(void *)OPTIMIZED_METHOD_TYPE_CALL, METHOD_VISI_PUBLIC);
rb_add_method(rb_cProc, rb_intern("==="), VM_METHOD_TYPE_OPTIMIZED,
(void *)OPTIMIZED_METHOD_TYPE_CALL, METHOD_VISI_PUBLIC);
rb_add_method(rb_cProc, rb_intern("yield"), VM_METHOD_TYPE_OPTIMIZED,
(void *)OPTIMIZED_METHOD_TYPE_CALL, METHOD_VISI_PUBLIC);
#if 0
rb_define_method(rb_cProc, "call", proc_call, -1);
rb_define_method(rb_cProc, "[]", proc_call, -1);
rb_define_method(rb_cProc, "===", proc_call, -1);
rb_define_method(rb_cProc, "yield", proc_call, -1);
#endif
rb_define_method(rb_cProc, "to_proc", proc_to_proc, 0);
rb_define_method(rb_cProc, "arity", proc_arity, 0);
rb_define_method(rb_cProc, "clone", proc_clone, 0);
rb_define_method(rb_cProc, "dup", rb_proc_dup, 0);
rb_define_method(rb_cProc, "hash", proc_hash, 0);
rb_define_method(rb_cProc, "to_s", proc_to_s, 0);
rb_define_alias(rb_cProc, "inspect", "to_s");
rb_define_method(rb_cProc, "lambda?", rb_proc_lambda_p, 0);
rb_define_method(rb_cProc, "binding", proc_binding, 0);
rb_define_method(rb_cProc, "curry", proc_curry, -1);
rb_define_method(rb_cProc, "<<", proc_compose_to_left, 1);
rb_define_method(rb_cProc, ">>", proc_compose_to_right, 1);
rb_define_method(rb_cProc, "source_location", rb_proc_location, 0);
rb_define_method(rb_cProc, "parameters", rb_proc_parameters, 0);
rb_eLocalJumpError = rb_define_class("LocalJumpError", rb_eStandardError);
rb_define_method(rb_eLocalJumpError, "exit_value", localjump_xvalue, 0);
rb_define_method(rb_eLocalJumpError, "reason", localjump_reason, 0);
rb_eSysStackError = rb_define_class("SystemStackError", rb_eException);
rb_vm_register_special_exception(ruby_error_sysstack, rb_eSysStackError, "stack level too deep");
rb_define_global_function("proc", rb_block_proc, 0);
rb_define_global_function("lambda", rb_block_lambda, 0);
rb_cMethod = rb_define_class("Method", rb_cObject);
rb_undef_alloc_func(rb_cMethod);
rb_undef_method(CLASS_OF(rb_cMethod), "new");
rb_define_method(rb_cMethod, "==", method_eq, 1);
rb_define_method(rb_cMethod, "eql?", method_eq, 1);
rb_define_method(rb_cMethod, "hash", method_hash, 0);
rb_define_method(rb_cMethod, "clone", method_clone, 0);
rb_define_method(rb_cMethod, "call", rb_method_call, -1);
rb_define_method(rb_cMethod, "===", rb_method_call, -1);
rb_define_method(rb_cMethod, "curry", rb_method_curry, -1);
rb_define_method(rb_cMethod, "<<", rb_method_compose_to_left, 1);
rb_define_method(rb_cMethod, ">>", rb_method_compose_to_right, 1);
rb_define_method(rb_cMethod, "[]", rb_method_call, -1);
rb_define_method(rb_cMethod, "arity", method_arity_m, 0);
rb_define_method(rb_cMethod, "inspect", method_inspect, 0);
rb_define_method(rb_cMethod, "to_s", method_inspect, 0);
rb_define_method(rb_cMethod, "to_proc", method_to_proc, 0);
rb_define_method(rb_cMethod, "receiver", method_receiver, 0);
rb_define_method(rb_cMethod, "name", method_name, 0);
rb_define_method(rb_cMethod, "original_name", method_original_name, 0);
rb_define_method(rb_cMethod, "owner", method_owner, 0);
rb_define_method(rb_cMethod, "unbind", method_unbind, 0);
rb_define_method(rb_cMethod, "source_location", rb_method_location, 0);
rb_define_method(rb_cMethod, "parameters", rb_method_parameters, 0);
rb_define_method(rb_cMethod, "super_method", method_super_method, 0);
rb_define_method(rb_mKernel, "method", rb_obj_method, 1);
rb_define_method(rb_mKernel, "public_method", rb_obj_public_method, 1);
rb_define_method(rb_mKernel, "singleton_method", rb_obj_singleton_method, 1);
rb_cUnboundMethod = rb_define_class("UnboundMethod", rb_cObject);
rb_undef_alloc_func(rb_cUnboundMethod);
rb_undef_method(CLASS_OF(rb_cUnboundMethod), "new");
rb_define_method(rb_cUnboundMethod, "==", method_eq, 1);
rb_define_method(rb_cUnboundMethod, "eql?", method_eq, 1);
rb_define_method(rb_cUnboundMethod, "hash", method_hash, 0);
rb_define_method(rb_cUnboundMethod, "clone", method_clone, 0);
rb_define_method(rb_cUnboundMethod, "arity", method_arity_m, 0);
rb_define_method(rb_cUnboundMethod, "inspect", method_inspect, 0);
rb_define_method(rb_cUnboundMethod, "to_s", method_inspect, 0);
rb_define_method(rb_cUnboundMethod, "name", method_name, 0);
rb_define_method(rb_cUnboundMethod, "original_name", method_original_name, 0);
rb_define_method(rb_cUnboundMethod, "owner", method_owner, 0);
rb_define_method(rb_cUnboundMethod, "bind", umethod_bind, 1);
rb_define_method(rb_cUnboundMethod, "source_location", rb_method_location, 0);
rb_define_method(rb_cUnboundMethod, "parameters", rb_method_parameters, 0);
rb_define_method(rb_cUnboundMethod, "super_method", method_super_method, 0);
rb_define_method(rb_cModule, "instance_method", rb_mod_instance_method, 1);
rb_define_method(rb_cModule, "public_instance_method", rb_mod_public_instance_method, 1);
rb_define_method(rb_cModule, "define_method", rb_mod_define_method, -1);
rb_define_method(rb_mKernel, "define_singleton_method", rb_obj_define_method, -1);
rb_define_private_method(rb_singleton_class(rb_vm_top_self()),
"define_method", top_define_method, -1);
}
void
Init_Binding(void)
{
rb_cBinding = rb_define_class("Binding", rb_cObject);
rb_undef_alloc_func(rb_cBinding);
rb_undef_method(CLASS_OF(rb_cBinding), "new");
rb_define_method(rb_cBinding, "clone", binding_clone, 0);
rb_define_method(rb_cBinding, "dup", binding_dup, 0);
rb_define_method(rb_cBinding, "eval", bind_eval, -1);
rb_define_method(rb_cBinding, "local_variables", bind_local_variables, 0);
rb_define_method(rb_cBinding, "local_variable_get", bind_local_variable_get, 1);
rb_define_method(rb_cBinding, "local_variable_set", bind_local_variable_set, 2);
rb_define_method(rb_cBinding, "local_variable_defined?", bind_local_variable_defined_p, 1);
rb_define_method(rb_cBinding, "receiver", bind_receiver, 0);
rb_define_method(rb_cBinding, "source_location", bind_location, 0);
rb_define_global_function("binding", rb_f_binding, 0);
}