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iseq.c
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iseq.c
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/**********************************************************************
iseq.c -
$Author$
created at: 2006-07-11(Tue) 09:00:03 +0900
Copyright (C) 2006 Koichi Sasada
**********************************************************************/
#include "internal.h"
#include "ruby/util.h"
#include "eval_intern.h"
#ifdef HAVE_DLADDR
# include <dlfcn.h>
#endif
/* #define RUBY_MARK_FREE_DEBUG 1 */
#include "gc.h"
#include "vm_core.h"
#include "iseq.h"
#include "insns.inc"
#include "insns_info.inc"
#define ISEQ_MAJOR_VERSION 2
#define ISEQ_MINOR_VERSION 2
VALUE rb_cISeq;
#define hidden_obj_p(obj) (!SPECIAL_CONST_P(obj) && !RBASIC(obj)->klass)
static inline VALUE
obj_resurrect(VALUE obj)
{
if (hidden_obj_p(obj)) {
switch (BUILTIN_TYPE(obj)) {
case T_STRING:
obj = rb_str_resurrect(obj);
break;
case T_ARRAY:
obj = rb_ary_resurrect(obj);
break;
}
}
return obj;
}
static void
compile_data_free(struct iseq_compile_data *compile_data)
{
if (compile_data) {
struct iseq_compile_data_storage *cur, *next;
cur = compile_data->storage_head;
while (cur) {
next = cur->next;
ruby_xfree(cur);
cur = next;
}
ruby_xfree(compile_data);
}
}
void
rb_iseq_free(const rb_iseq_t *iseq)
{
RUBY_FREE_ENTER("iseq");
if (iseq) {
ruby_xfree((void *)iseq->body->iseq_encoded);
ruby_xfree((void *)iseq->body->line_info_table);
ruby_xfree((void *)iseq->body->local_table);
ruby_xfree((void *)iseq->body->is_entries);
if (iseq->body->callinfo_entries) {
unsigned int i;
for (i=0; i<iseq->body->callinfo_size; i++) {
/* TODO: revisit callinfo data structure */
const rb_call_info_kw_arg_t *kw_arg = iseq->body->callinfo_entries[i].kw_arg;
ruby_xfree((void *)kw_arg);
}
ruby_xfree(iseq->body->callinfo_entries);
}
ruby_xfree((void *)iseq->body->catch_table);
ruby_xfree((void *)iseq->body->param.opt_table);
if (iseq->body->param.keyword != NULL) {
ruby_xfree((void *)iseq->body->param.keyword->default_values);
ruby_xfree((void *)iseq->body->param.keyword);
}
compile_data_free(iseq->compile_data);
ruby_xfree(iseq->variable_body->iseq);
ruby_xfree(iseq->body);
}
RUBY_FREE_LEAVE("iseq");
}
void
rb_iseq_mark(const rb_iseq_t *iseq)
{
RUBY_MARK_ENTER("iseq");
RUBY_GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->body->location.label), RSTRING_PTR(iseq->body->location.path));
if (iseq->body) {
const struct rb_iseq_constant_body *body = iseq->body;
RUBY_MARK_UNLESS_NULL(body->mark_ary);
rb_gc_mark(body->location.label);
rb_gc_mark(body->location.base_label);
rb_gc_mark(body->location.path);
RUBY_MARK_UNLESS_NULL(body->location.absolute_path);
}
if (iseq->variable_body) {
RUBY_MARK_UNLESS_NULL(iseq->variable_body->coverage);
}
if (iseq->compile_data != 0) {
const struct iseq_compile_data *const compile_data = iseq->compile_data;
RUBY_MARK_UNLESS_NULL(compile_data->mark_ary);
RUBY_MARK_UNLESS_NULL(compile_data->err_info);
RUBY_MARK_UNLESS_NULL(compile_data->catch_table_ary);
}
RUBY_MARK_LEAVE("iseq");
}
static size_t
param_keyword_size(const struct rb_iseq_param_keyword *pkw)
{
size_t size = 0;
if (!pkw) return size;
size += sizeof(struct rb_iseq_param_keyword);
size += sizeof(VALUE) * (pkw->num - pkw->required_num);
return size;
}
static size_t
iseq_memsize(const void *ptr)
{
const rb_iseq_t *iseq = ptr;
size_t size = 0; /* struct already counted as RVALUE size */
const struct rb_iseq_variable_body *variable_body;
const struct rb_iseq_constant_body *body;
const struct iseq_compile_data *compile_data;
variable_body = iseq->variable_body;
body = iseq->body;
if (variable_body) {
size += sizeof(struct rb_iseq_variable_body);
if (variable_body->iseq && body) {
size += body->iseq_size * sizeof(VALUE);
}
}
if (body) {
rb_call_info_t *ci_entries = body->callinfo_entries;
size += sizeof(struct rb_iseq_constant_body);
size += body->iseq_size * sizeof(VALUE);
size += body->line_info_size * sizeof(struct iseq_line_info_entry);
size += body->local_table_size * sizeof(ID);
if (body->catch_table) {
size += iseq_catch_table_bytes(body->catch_table->size);
}
size += (body->param.opt_num + 1) * sizeof(VALUE);
size += param_keyword_size(body->param.keyword);
size += body->is_size * sizeof(union iseq_inline_storage_entry);
size += body->callinfo_size * sizeof(rb_call_info_t);
if (ci_entries) {
unsigned int i;
for (i = 0; i < body->callinfo_size; i++) {
const rb_call_info_kw_arg_t *kw_arg = ci_entries[i].kw_arg;
if (kw_arg) {
size += rb_call_info_kw_arg_bytes(kw_arg->keyword_len);
}
}
}
}
compile_data = iseq->compile_data;
if (compile_data) {
struct iseq_compile_data_storage *cur;
size += sizeof(struct iseq_compile_data);
cur = compile_data->storage_head;
while (cur) {
size += cur->size + SIZEOF_ISEQ_COMPILE_DATA_STORAGE;
cur = cur->next;
}
}
return size;
}
static rb_iseq_t *
iseq_alloc(void)
{
rb_iseq_t *iseq = (rb_iseq_t *)rb_imemo_new(imemo_iseq, 0, 0, 0, 0);
iseq->body = ZALLOC(struct rb_iseq_constant_body);
iseq->variable_body = ZALLOC(struct rb_iseq_variable_body);
return iseq;
}
static rb_iseq_location_t *
iseq_location_setup(rb_iseq_t *iseq, VALUE path, VALUE absolute_path, VALUE name, VALUE first_lineno)
{
rb_iseq_location_t *loc = &iseq->body->location;
RB_OBJ_WRITE(iseq, &loc->path, path);
if (RTEST(absolute_path) && rb_str_cmp(path, absolute_path) == 0) {
RB_OBJ_WRITE(iseq, &loc->absolute_path, path);
}
else {
RB_OBJ_WRITE(iseq, &loc->absolute_path, absolute_path);
}
RB_OBJ_WRITE(iseq, &loc->label, name);
RB_OBJ_WRITE(iseq, &loc->base_label, name);
loc->first_lineno = first_lineno;
return loc;
}
static void
set_relation(rb_iseq_t *iseq, const rb_iseq_t *piseq)
{
const VALUE type = iseq->body->type;
/* set class nest stack */
if (type == ISEQ_TYPE_TOP) {
iseq->body->local_iseq = iseq;
}
else if (type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) {
iseq->body->local_iseq = iseq;
}
else if (piseq) {
iseq->body->local_iseq = piseq->body->local_iseq;
}
if (piseq) {
iseq->body->parent_iseq = piseq;
}
if (type == ISEQ_TYPE_MAIN) {
iseq->body->local_iseq = iseq;
}
}
void
rb_iseq_add_mark_object(const rb_iseq_t *iseq, VALUE obj)
{
if (!RTEST(iseq->body->mark_ary)) {
RB_OBJ_WRITE(iseq, &iseq->body->mark_ary, rb_ary_tmp_new(3));
RBASIC_CLEAR_CLASS(iseq->body->mark_ary);
}
rb_ary_push(iseq->body->mark_ary, obj);
}
static VALUE
prepare_iseq_build(rb_iseq_t *iseq,
VALUE name, VALUE path, VALUE absolute_path, VALUE first_lineno,
const rb_iseq_t *parent, enum iseq_type type,
const rb_compile_option_t *option)
{
iseq->body->type = type;
set_relation(iseq, parent);
name = rb_fstring(name);
path = rb_fstring(path);
if (RTEST(absolute_path)) absolute_path = rb_fstring(absolute_path);
iseq_location_setup(iseq, path, absolute_path, name, first_lineno);
if (iseq != iseq->body->local_iseq) {
RB_OBJ_WRITE(iseq, &iseq->body->location.base_label, iseq->body->local_iseq->body->location.label);
}
RB_OBJ_WRITE(iseq, &iseq->body->mark_ary, 0);
iseq->compile_data = ZALLOC(struct iseq_compile_data);
RB_OBJ_WRITE(iseq, &iseq->compile_data->err_info, Qnil);
RB_OBJ_WRITE(iseq, &iseq->compile_data->mark_ary, rb_ary_tmp_new(3));
iseq->compile_data->storage_head = iseq->compile_data->storage_current =
(struct iseq_compile_data_storage *)
ALLOC_N(char, INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE +
SIZEOF_ISEQ_COMPILE_DATA_STORAGE);
RB_OBJ_WRITE(iseq, &iseq->compile_data->catch_table_ary, rb_ary_tmp_new(3));
iseq->compile_data->storage_head->pos = 0;
iseq->compile_data->storage_head->next = 0;
iseq->compile_data->storage_head->size =
INITIAL_ISEQ_COMPILE_DATA_STORAGE_BUFF_SIZE;
iseq->compile_data->option = option;
iseq->compile_data->last_coverable_line = -1;
RB_OBJ_WRITE(iseq, &iseq->variable_body->coverage, Qfalse);
if (!GET_THREAD()->parse_in_eval) {
VALUE coverages = rb_get_coverages();
if (RTEST(coverages)) {
RB_OBJ_WRITE(iseq, &iseq->variable_body->coverage, rb_hash_lookup(coverages, path));
if (NIL_P(iseq->variable_body->coverage)) RB_OBJ_WRITE(iseq, &iseq->variable_body->coverage, Qfalse);
}
}
return Qtrue;
}
static VALUE
cleanup_iseq_build(rb_iseq_t *iseq)
{
struct iseq_compile_data *data = iseq->compile_data;
VALUE err = data->err_info;
iseq->compile_data = 0;
compile_data_free(data);
if (RTEST(err)) {
rb_funcall2(err, rb_intern("set_backtrace"), 1, &iseq->body->location.path);
rb_exc_raise(err);
}
return Qtrue;
}
static rb_compile_option_t COMPILE_OPTION_DEFAULT = {
OPT_INLINE_CONST_CACHE, /* int inline_const_cache; */
OPT_PEEPHOLE_OPTIMIZATION, /* int peephole_optimization; */
OPT_TAILCALL_OPTIMIZATION, /* int tailcall_optimization */
OPT_SPECIALISED_INSTRUCTION, /* int specialized_instruction; */
OPT_OPERANDS_UNIFICATION, /* int operands_unification; */
OPT_INSTRUCTIONS_UNIFICATION, /* int instructions_unification; */
OPT_STACK_CACHING, /* int stack_caching; */
OPT_TRACE_INSTRUCTION, /* int trace_instruction */
OPT_FROZEN_STRING_LITERAL
};
static const rb_compile_option_t COMPILE_OPTION_FALSE = {0};
static void
make_compile_option(rb_compile_option_t *option, VALUE opt)
{
if (opt == Qnil) {
*option = COMPILE_OPTION_DEFAULT;
}
else if (opt == Qfalse) {
*option = COMPILE_OPTION_FALSE;
}
else if (opt == Qtrue) {
int i;
for (i = 0; i < (int)(sizeof(rb_compile_option_t) / sizeof(int)); ++i)
((int *)option)[i] = 1;
}
else if (CLASS_OF(opt) == rb_cHash) {
*option = COMPILE_OPTION_DEFAULT;
#define SET_COMPILE_OPTION(o, h, mem) \
{ VALUE flag = rb_hash_aref((h), ID2SYM(rb_intern(#mem))); \
if (flag == Qtrue) { (o)->mem = 1; } \
else if (flag == Qfalse) { (o)->mem = 0; } \
}
#define SET_COMPILE_OPTION_NUM(o, h, mem) \
{ VALUE num = rb_hash_aref(opt, ID2SYM(rb_intern(#mem))); \
if (!NIL_P(num)) (o)->mem = NUM2INT(num); \
}
SET_COMPILE_OPTION(option, opt, inline_const_cache);
SET_COMPILE_OPTION(option, opt, peephole_optimization);
SET_COMPILE_OPTION(option, opt, tailcall_optimization);
SET_COMPILE_OPTION(option, opt, specialized_instruction);
SET_COMPILE_OPTION(option, opt, operands_unification);
SET_COMPILE_OPTION(option, opt, instructions_unification);
SET_COMPILE_OPTION(option, opt, stack_caching);
SET_COMPILE_OPTION(option, opt, trace_instruction);
SET_COMPILE_OPTION(option, opt, frozen_string_literal);
SET_COMPILE_OPTION_NUM(option, opt, debug_level);
#undef SET_COMPILE_OPTION
#undef SET_COMPILE_OPTION_NUM
}
else {
rb_raise(rb_eTypeError, "Compile option must be Hash/true/false/nil");
}
}
static VALUE
make_compile_option_value(rb_compile_option_t *option)
{
VALUE opt = rb_hash_new();
#define SET_COMPILE_OPTION(o, h, mem) \
rb_hash_aset((h), ID2SYM(rb_intern(#mem)), (o)->mem ? Qtrue : Qfalse)
#define SET_COMPILE_OPTION_NUM(o, h, mem) \
rb_hash_aset((h), ID2SYM(rb_intern(#mem)), INT2NUM((o)->mem))
{
SET_COMPILE_OPTION(option, opt, inline_const_cache);
SET_COMPILE_OPTION(option, opt, peephole_optimization);
SET_COMPILE_OPTION(option, opt, tailcall_optimization);
SET_COMPILE_OPTION(option, opt, specialized_instruction);
SET_COMPILE_OPTION(option, opt, operands_unification);
SET_COMPILE_OPTION(option, opt, instructions_unification);
SET_COMPILE_OPTION(option, opt, stack_caching);
SET_COMPILE_OPTION(option, opt, trace_instruction);
SET_COMPILE_OPTION_NUM(option, opt, debug_level);
}
#undef SET_COMPILE_OPTION
#undef SET_COMPILE_OPTION_NUM
return opt;
}
rb_iseq_t *
rb_iseq_new(NODE *node, VALUE name, VALUE path, VALUE absolute_path,
const rb_iseq_t *parent, enum iseq_type type)
{
return rb_iseq_new_with_opt(node, name, path, absolute_path, INT2FIX(0), parent, type,
&COMPILE_OPTION_DEFAULT);
}
rb_iseq_t *
rb_iseq_new_top(NODE *node, VALUE name, VALUE path, VALUE absolute_path, const rb_iseq_t *parent)
{
return rb_iseq_new_with_opt(node, name, path, absolute_path, INT2FIX(0), parent, ISEQ_TYPE_TOP,
&COMPILE_OPTION_DEFAULT);
}
rb_iseq_t *
rb_iseq_new_main(NODE *node, VALUE path, VALUE absolute_path)
{
rb_thread_t *th = GET_THREAD();
const rb_iseq_t *parent = th->base_block->iseq;
return rb_iseq_new_with_opt(node, rb_str_new2("<main>"), path, absolute_path, INT2FIX(0),
parent, ISEQ_TYPE_MAIN, &COMPILE_OPTION_DEFAULT);
}
rb_iseq_t *
rb_iseq_new_with_opt(NODE *node, VALUE name, VALUE path, VALUE absolute_path,
VALUE first_lineno, const rb_iseq_t *parent,
enum iseq_type type, const rb_compile_option_t *option)
{
/* TODO: argument check */
rb_iseq_t *iseq = iseq_alloc();
if (!option) option = &COMPILE_OPTION_DEFAULT;
prepare_iseq_build(iseq, name, path, absolute_path, first_lineno, parent, type, option);
rb_iseq_compile_node(iseq, node);
cleanup_iseq_build(iseq);
return iseq;
}
#define CHECK_ARRAY(v) rb_convert_type((v), T_ARRAY, "Array", "to_ary")
#define CHECK_HASH(v) rb_convert_type((v), T_HASH, "Hash", "to_hash")
#define CHECK_STRING(v) rb_convert_type((v), T_STRING, "String", "to_str")
#define CHECK_SYMBOL(v) rb_convert_type((v), T_SYMBOL, "Symbol", "to_sym")
static inline VALUE CHECK_INTEGER(VALUE v) {(void)NUM2LONG(v); return v;}
static enum iseq_type
iseq_type_from_sym(VALUE type)
{
const ID id_top = rb_intern("top");
const ID id_method = rb_intern("method");
const ID id_block = rb_intern("block");
const ID id_class = rb_intern("class");
const ID id_rescue = rb_intern("rescue");
const ID id_ensure = rb_intern("ensure");
const ID id_eval = rb_intern("eval");
const ID id_main = rb_intern("main");
const ID id_defined_guard = rb_intern("defined_guard");
/* ensure all symbols are static or pinned down before
* conversion */
const ID typeid = rb_check_id(&type);
if (typeid == id_top) return ISEQ_TYPE_TOP;
if (typeid == id_method) return ISEQ_TYPE_METHOD;
if (typeid == id_block) return ISEQ_TYPE_BLOCK;
if (typeid == id_class) return ISEQ_TYPE_CLASS;
if (typeid == id_rescue) return ISEQ_TYPE_RESCUE;
if (typeid == id_ensure) return ISEQ_TYPE_ENSURE;
if (typeid == id_eval) return ISEQ_TYPE_EVAL;
if (typeid == id_main) return ISEQ_TYPE_MAIN;
if (typeid == id_defined_guard) return ISEQ_TYPE_DEFINED_GUARD;
return (enum iseq_type)-1;
}
static VALUE iseqw_new(const rb_iseq_t *iseq);
static VALUE
iseq_load(VALUE data, const rb_iseq_t *parent, VALUE opt)
{
rb_iseq_t *iseq = iseq_alloc();
VALUE magic, version1, version2, format_type, misc;
VALUE name, path, absolute_path, first_lineno;
VALUE type, body, locals, params, exception;
st_data_t iseq_type;
rb_compile_option_t option;
int i = 0;
/* [magic, major_version, minor_version, format_type, misc,
* label, path, first_lineno,
* type, locals, args, exception_table, body]
*/
data = CHECK_ARRAY(data);
magic = CHECK_STRING(rb_ary_entry(data, i++));
version1 = CHECK_INTEGER(rb_ary_entry(data, i++));
version2 = CHECK_INTEGER(rb_ary_entry(data, i++));
format_type = CHECK_INTEGER(rb_ary_entry(data, i++));
misc = CHECK_HASH(rb_ary_entry(data, i++));
((void)magic, (void)version1, (void)version2, (void)format_type);
name = CHECK_STRING(rb_ary_entry(data, i++));
path = CHECK_STRING(rb_ary_entry(data, i++));
absolute_path = rb_ary_entry(data, i++);
absolute_path = NIL_P(absolute_path) ? Qnil : CHECK_STRING(absolute_path);
first_lineno = CHECK_INTEGER(rb_ary_entry(data, i++));
type = CHECK_SYMBOL(rb_ary_entry(data, i++));
locals = CHECK_ARRAY(rb_ary_entry(data, i++));
params = CHECK_HASH(rb_ary_entry(data, i++));
exception = CHECK_ARRAY(rb_ary_entry(data, i++));
body = CHECK_ARRAY(rb_ary_entry(data, i++));
iseq->body->local_iseq = iseq;
iseq_type = iseq_type_from_sym(type);
if (iseq_type == (enum iseq_type)-1) {
rb_raise(rb_eTypeError, "unsupport type: :%"PRIsVALUE, rb_sym2str(type));
}
make_compile_option(&option, opt);
prepare_iseq_build(iseq, name, path, absolute_path, first_lineno,
parent, (enum iseq_type)iseq_type, &option);
rb_iseq_build_from_ary(iseq, misc, locals, params, exception, body);
cleanup_iseq_build(iseq);
return iseqw_new(iseq);
}
/*
* :nodoc:
*/
static VALUE
iseq_s_load(int argc, VALUE *argv, VALUE self)
{
VALUE data, opt=Qnil;
rb_scan_args(argc, argv, "11", &data, &opt);
return iseq_load(data, NULL, opt);
}
VALUE
rb_iseq_load(VALUE data, VALUE parent, VALUE opt)
{
return iseq_load(data, RTEST(parent) ? (rb_iseq_t *)parent : NULL, opt);
}
rb_iseq_t *
rb_iseq_compile_with_option(VALUE src, VALUE file, VALUE absolute_path, VALUE line, rb_block_t *base_block, VALUE opt)
{
int state;
rb_thread_t *th = GET_THREAD();
rb_block_t *prev_base_block = th->base_block;
rb_iseq_t *iseq = NULL;
th->base_block = base_block;
TH_PUSH_TAG(th);
if ((state = EXEC_TAG()) == 0) {
VALUE parser;
int ln = NUM2INT(line);
NODE *node;
rb_compile_option_t option;
StringValueCStr(file);
make_compile_option(&option, opt);
parser = rb_parser_new();
if (RB_TYPE_P((src), T_FILE))
node = rb_parser_compile_file_path(parser, file, src, ln);
else {
StringValue(src);
node = rb_parser_compile_string_path(parser, file, src, ln);
if (!node) {
rb_exc_raise(th->errinfo); /* TODO: check err */
}
}
if (base_block && base_block->iseq) {
iseq = rb_iseq_new_with_opt(node, base_block->iseq->body->location.label,
file, absolute_path, line, base_block->iseq,
ISEQ_TYPE_EVAL, &option);
}
else {
iseq = rb_iseq_new_with_opt(node, rb_str_new2("<compiled>"), file, absolute_path, line,
NULL, ISEQ_TYPE_TOP, &option);
}
}
TH_POP_TAG();
th->base_block = prev_base_block;
if (state) {
JUMP_TAG(state);
}
return iseq;
}
rb_iseq_t *
rb_iseq_compile(VALUE src, VALUE file, VALUE line)
{
return rb_iseq_compile_with_option(src, file, Qnil, line, 0, Qnil);
}
rb_iseq_t *
rb_iseq_compile_on_base(VALUE src, VALUE file, VALUE line, rb_block_t *base_block)
{
return rb_iseq_compile_with_option(src, file, Qnil, line, base_block, Qnil);
}
VALUE
rb_iseq_path(const rb_iseq_t *iseq)
{
return iseq->body->location.path;
}
VALUE
rb_iseq_absolute_path(const rb_iseq_t *iseq)
{
return iseq->body->location.absolute_path;
}
VALUE
rb_iseq_label(const rb_iseq_t *iseq)
{
return iseq->body->location.label;
}
VALUE
rb_iseq_base_label(const rb_iseq_t *iseq)
{
return iseq->body->location.base_label;
}
VALUE
rb_iseq_first_lineno(const rb_iseq_t *iseq)
{
return iseq->body->location.first_lineno;
}
VALUE
rb_iseq_method_name(const rb_iseq_t *iseq)
{
const rb_iseq_t *local_iseq;
local_iseq = iseq->body->local_iseq;
if (local_iseq->body->type == ISEQ_TYPE_METHOD) {
return local_iseq->body->location.base_label;
}
else {
return Qnil;
}
}
/* define wrapper class methods (RubyVM::InstructionSequence) */
static void
iseqw_mark(void *ptr)
{
rb_gc_mark((VALUE)ptr);
}
static const rb_data_type_t iseqw_data_type = {
"T_IMEMO/iseq",
{iseqw_mark, NULL, iseq_memsize,},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY|RUBY_TYPED_WB_PROTECTED
};
static VALUE
iseqw_new(const rb_iseq_t *iseq)
{
union { const rb_iseq_t *in; void *out; } deconst;
VALUE obj;
deconst.in = iseq;
obj = TypedData_Wrap_Struct(rb_cISeq, &iseqw_data_type, deconst.out);
RB_OBJ_WRITTEN(obj, Qundef, iseq);
return obj;
}
VALUE
rb_iseqw_new(const rb_iseq_t *iseq)
{
return iseqw_new(iseq);
}
/*
* call-seq:
* InstructionSequence.compile(source[, file[, path[, line[, options]]]]) -> iseq
* InstructionSequence.new(source[, file[, path[, line[, options]]]]) -> iseq
*
* Takes +source+, a String of Ruby code and compiles it to an
* InstructionSequence.
*
* Optionally takes +file+, +path+, and +line+ which describe the filename,
* absolute path and first line number of the ruby code in +source+ which are
* metadata attached to the returned +iseq+.
*
* +options+, which can be +true+, +false+ or a +Hash+, is used to
* modify the default behavior of the Ruby iseq compiler.
*
* For details regarding valid compile options see ::compile_option=.
*
* RubyVM::InstructionSequence.compile("a = 1 + 2")
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
*
*/
static VALUE
iseqw_s_compile(int argc, VALUE *argv, VALUE self)
{
VALUE src, file = Qnil, path = Qnil, line = INT2FIX(1), opt = Qnil;
rb_secure(1);
rb_scan_args(argc, argv, "14", &src, &file, &path, &line, &opt);
if (NIL_P(file)) file = rb_str_new2("<compiled>");
if (NIL_P(line)) line = INT2FIX(1);
return iseqw_new(rb_iseq_compile_with_option(src, file, path, line, 0, opt));
}
/*
* call-seq:
* InstructionSequence.compile_file(file[, options]) -> iseq
*
* Takes +file+, a String with the location of a Ruby source file, reads,
* parses and compiles the file, and returns +iseq+, the compiled
* InstructionSequence with source location metadata set.
*
* Optionally takes +options+, which can be +true+, +false+ or a +Hash+, to
* modify the default behavior of the Ruby iseq compiler.
*
* For details regarding valid compile options see ::compile_option=.
*
* # /tmp/hello.rb
* puts "Hello, world!"
*
* # elsewhere
* RubyVM::InstructionSequence.compile_file("/tmp/hello.rb")
* #=> <RubyVM::InstructionSequence:<main>@/tmp/hello.rb>
*/
static VALUE
iseqw_s_compile_file(int argc, VALUE *argv, VALUE self)
{
VALUE file, line = INT2FIX(1), opt = Qnil;
VALUE parser;
VALUE f;
NODE *node;
const char *fname;
rb_compile_option_t option;
rb_secure(1);
rb_scan_args(argc, argv, "11", &file, &opt);
FilePathValue(file);
fname = StringValueCStr(file);
f = rb_file_open_str(file, "r");
parser = rb_parser_new();
node = rb_parser_compile_file(parser, fname, f, NUM2INT(line));
rb_io_close(f);
make_compile_option(&option, opt);
return iseqw_new(rb_iseq_new_with_opt(node, rb_str_new2("<main>"), file,
rb_realpath_internal(Qnil, file, 1), line, NULL,
ISEQ_TYPE_TOP, &option));
}
/*
* call-seq:
* InstructionSequence.compile_option = options
*
* Sets the default values for various optimizations in the Ruby iseq
* compiler.
*
* Possible values for +options+ include +true+, which enables all options,
* +false+ which disables all options, and +nil+ which leaves all options
* unchanged.
*
* You can also pass a +Hash+ of +options+ that you want to change, any
* options not present in the hash will be left unchanged.
*
* Possible option names (which are keys in +options+) which can be set to
* +true+ or +false+ include:
*
* * +:inline_const_cache+
* * +:instructions_unification+
* * +:operands_unification+
* * +:peephole_optimization+
* * +:specialized_instruction+
* * +:stack_caching+
* * +:tailcall_optimization+
* * +:trace_instruction+
*
* Additionally, +:debug_level+ can be set to an integer.
*
* These default options can be overwritten for a single run of the iseq
* compiler by passing any of the above values as the +options+ parameter to
* ::new, ::compile and ::compile_file.
*/
static VALUE
iseqw_s_compile_option_set(VALUE self, VALUE opt)
{
rb_compile_option_t option;
rb_secure(1);
make_compile_option(&option, opt);
COMPILE_OPTION_DEFAULT = option;
return opt;
}
/*
* call-seq:
* InstructionSequence.compile_option -> options
*
* Returns a hash of default options used by the Ruby iseq compiler.
*
* For details, see InstructionSequence.compile_option=.
*/
static VALUE
iseqw_s_compile_option_get(VALUE self)
{
return make_compile_option_value(&COMPILE_OPTION_DEFAULT);
}
static const rb_iseq_t *
iseqw_check(VALUE iseqw)
{
const rb_iseq_t *iseq = DATA_PTR(iseqw);
if (!iseq->body->location.label) {
rb_raise(rb_eTypeError, "uninitialized InstructionSequence");
}
return iseq;
}
const rb_iseq_t *
rb_iseqw_to_iseq(VALUE iseqw)
{
return iseqw_check(iseqw);
}
/*
* call-seq:
* iseq.eval -> obj
*
* Evaluates the instruction sequence and returns the result.
*
* RubyVM::InstructionSequence.compile("1 + 2").eval #=> 3
*/
static VALUE
iseqw_eval(VALUE self)
{
rb_secure(1);
return rb_iseq_eval(iseqw_check(self));
}
/*
* Returns a human-readable string representation of this instruction
* sequence, including the #label and #path.
*/
static VALUE
iseqw_inspect(VALUE self)
{
const rb_iseq_t *iseq = iseqw_check(self);
if (!iseq->body->location.label) {
return rb_sprintf("#<%s: uninitialized>", rb_obj_classname(self));
}
else {
return rb_sprintf("<%s:%s@%s>",
rb_obj_classname(self),
RSTRING_PTR(iseq->body->location.label), RSTRING_PTR(iseq->body->location.path));
}
}
/*
* Returns the path of this instruction sequence.
*
* <code><compiled></code> if the iseq was evaluated from a string.
*
* For example, using irb:
*
* iseq = RubyVM::InstructionSequence.compile('num = 1 + 2')
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
* iseq.path
* #=> "<compiled>"
*
* Using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.path #=> /tmp/method.rb
*/
static VALUE
iseqw_path(VALUE self)
{
return rb_iseq_path(iseqw_check(self));
}
/*
* Returns the absolute path of this instruction sequence.
*
* +nil+ if the iseq was evaluated from a string.
*
* For example, using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.absolute_path #=> /tmp/method.rb
*/
static VALUE
iseqw_absolute_path(VALUE self)
{
return rb_iseq_absolute_path(iseqw_check(self));
}
/* Returns the label of this instruction sequence.
*
* <code><main></code> if it's at the top level, <code><compiled></code> if it
* was evaluated from a string.
*
* For example, using irb:
*
* iseq = RubyVM::InstructionSequence.compile('num = 1 + 2')
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
* iseq.label
* #=> "<compiled>"
*
* Using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.label #=> <main>
*/
VALUE
iseqw_label(VALUE self)
{
return rb_iseq_label(iseqw_check(self));
}
/* Returns the base label of this instruction sequence.
*
* For example, using irb:
*
* iseq = RubyVM::InstructionSequence.compile('num = 1 + 2')
* #=> <RubyVM::InstructionSequence:<compiled>@<compiled>>
* iseq.base_label
* #=> "<compiled>"
*
* Using ::compile_file:
*
* # /tmp/method.rb
* def hello
* puts "hello, world"
* end
*
* # in irb
* > iseq = RubyVM::InstructionSequence.compile_file('/tmp/method.rb')
* > iseq.base_label #=> <main>
*/
static VALUE
iseqw_base_label(VALUE self)