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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-12-31 15:02:22 +0000
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-12-31 15:02:22 +0000
commita3e1b1ce7ed7e7ffac23015fc2fde56511b30681 (patch)
tree7b725552a9a4ded93849ca2faab1b257f7761790 /iseq.c
parent3e7566d8fb5138bb9cd647e5fdefc54fc9803509 (diff)
downloadbundler-a3e1b1ce7ed7e7ffac23015fc2fde56511b30681.tar.gz
* Merge YARV
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11439 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'iseq.c')
-rw-r--r--iseq.c1345
1 files changed, 1345 insertions, 0 deletions
diff --git a/iseq.c b/iseq.c
new file mode 100644
index 0000000000..73902416fd
--- /dev/null
+++ b/iseq.c
@@ -0,0 +1,1345 @@
+/**********************************************************************
+
+ iseq.c -
+
+ $Author$
+ $Date$
+ created at: 2006-07-11(Tue) 09:00:03 +0900
+
+ Copyright (C) 2006 Koichi Sasada
+
+**********************************************************************/
+
+#include <ruby.h>
+#include <node.h>
+
+#include "yarvcore.h"
+#include "insns.inc"
+#include "insns_info.inc"
+
+// #define MARK_FREE_DEBUG 1
+#include "gc.h"
+
+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);
+ }
+}
+
+static void
+iseq_free(void *ptr)
+{
+ yarv_iseq_t *iseq;
+ FREE_REPORT_ENTER("iseq");
+
+ if (ptr) {
+ iseq = ptr;
+ /* It's possible that strings are freed
+ * GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->name),
+ * RSTRING_PTR(iseq->file_name));
+ */
+ if (iseq->iseq != iseq->iseq_encoded) {
+ FREE_UNLESS_NULL(iseq->iseq_encoded);
+ }
+
+ FREE_UNLESS_NULL(iseq->iseq);
+ FREE_UNLESS_NULL(iseq->insn_info_tbl);
+ FREE_UNLESS_NULL(iseq->local_tbl);
+ FREE_UNLESS_NULL(iseq->catch_table);
+ FREE_UNLESS_NULL(iseq->arg_opt_tbl);
+ compile_data_free(iseq->compile_data);
+ ruby_xfree(ptr);
+ }
+ FREE_REPORT_LEAVE("iseq");
+}
+
+static void
+iseq_mark(void *ptr)
+{
+ yarv_iseq_t *iseq;
+ MARK_REPORT_ENTER("iseq");
+
+ if (ptr) {
+ iseq = ptr;
+ GC_INFO("%s @ %s\n", RSTRING_PTR(iseq->name), RSTRING_PTR(iseq->file_name));
+ MARK_UNLESS_NULL(iseq->iseq_mark_ary);
+ MARK_UNLESS_NULL(iseq->name);
+ MARK_UNLESS_NULL(iseq->file_name);
+ MARK_UNLESS_NULL((VALUE)iseq->cref_stack);
+ MARK_UNLESS_NULL(iseq->klass);
+ MARK_UNLESS_NULL((VALUE)iseq->node);
+ MARK_UNLESS_NULL(iseq->cached_special_block);
+
+ if (iseq->compile_data != 0) {
+ MARK_UNLESS_NULL(iseq->compile_data->mark_ary);
+ MARK_UNLESS_NULL(iseq->compile_data->err_info);
+ MARK_UNLESS_NULL(iseq->compile_data->catch_table_ary);
+ }
+ }
+ MARK_REPORT_LEAVE("iseq");
+}
+
+static VALUE
+iseq_alloc(VALUE klass)
+{
+ VALUE volatile obj;
+ yarv_iseq_t *iseq;
+
+ obj = Data_Make_Struct(klass, yarv_iseq_t, iseq_mark, iseq_free, iseq);
+ MEMZERO(iseq, yarv_iseq_t, 1);
+ return obj;
+}
+
+static VALUE
+prepare_iseq_build(yarv_iseq_t *iseq,
+ VALUE name, VALUE file_name,
+ VALUE parent, VALUE type, VALUE block_opt,
+ const yarv_compile_option_t *option)
+{
+ iseq->name = name;
+ iseq->defined_method_id = 0;
+ iseq->file_name = file_name;
+ iseq->iseq_mark_ary = rb_ary_new();
+ RBASIC(iseq->iseq_mark_ary)->klass = 0;
+
+ iseq->type = type;
+ iseq->arg_rest = 0;
+ iseq->arg_block = 0;
+ iseq->klass = 0;
+ iseq->special_block_builder = GC_GUARDED_PTR_REF(block_opt);
+ iseq->cached_special_block_builder = 0;
+ iseq->cached_special_block = 0;
+
+ /* set class nest stack */
+ if (type == ISEQ_TYPE_TOP) {
+ /* toplevel is private */
+ iseq->cref_stack = NEW_BLOCK(rb_cObject);
+ iseq->cref_stack->nd_file = 0;
+ iseq->cref_stack->nd_visi = NOEX_PRIVATE;
+ }
+ else if (type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) {
+ iseq->cref_stack = NEW_BLOCK(0); /* place holder */
+ iseq->cref_stack->nd_file = 0;
+ }
+ else if (parent) {
+ yarv_iseq_t *piseq;
+ GetISeqPtr(parent, piseq);
+ iseq->cref_stack = piseq->cref_stack;
+ }
+
+ iseq->compile_data = ALLOC(struct iseq_compile_data);
+ MEMZERO(iseq->compile_data, struct iseq_compile_data, 1);
+ iseq->compile_data->mark_ary = rb_ary_new();
+ RBASIC(iseq->compile_data->mark_ary)->klass = 0;
+
+ 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(struct iseq_compile_data_storage));
+
+ iseq->compile_data->catch_table_ary = rb_ary_new();
+ 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->storage_head->buff =
+ (char *)(&iseq->compile_data->storage_head->buff + 1);
+ iseq->compile_data->option = option;
+
+ if (type == ISEQ_TYPE_TOP ||
+ type == ISEQ_TYPE_METHOD || type == ISEQ_TYPE_CLASS) {
+ iseq->local_iseq = iseq;
+ }
+ else {
+ yarv_iseq_t *piseq;
+ GetISeqPtr(parent, piseq);
+ iseq->local_iseq = piseq->local_iseq;
+ }
+
+ if (RTEST(parent)) {
+ yarv_iseq_t *piseq;
+ GetISeqPtr(parent, piseq);
+ iseq->parent_iseq = piseq;
+ }
+
+ return Qtrue;
+}
+
+static VALUE
+cleanup_iseq_build(yarv_iseq_t *iseq)
+{
+ struct iseq_compile_data *data = iseq->compile_data;
+ iseq->compile_data = 0;
+ compile_data_free(data);
+
+ if (ruby_nerrs > 0) {
+ VALUE str = rb_str_buf_new2("compile error");
+ ruby_nerrs = 0;
+ rb_exc_raise(rb_exc_new3(rb_eSyntaxError, str));
+ }
+ return Qtrue;
+}
+
+static yarv_compile_option_t COMPILE_OPTION_DEFAULT = {
+ OPT_INLINE_CONST_CACHE, /* int inline_const_cache; */
+ OPT_PEEPHOLE_OPTIMIZATION, /* int peephole_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; */
+};
+static const yarv_compile_option_t COMPILE_OPTION_FALSE;
+
+static void
+make_compile_option(yarv_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) {
+ memset(option, 1, sizeof(yarv_compile_option_t));
+ }
+ else if (CLASS_OF(opt) == rb_cHash) {
+#define SET_COMPILE_OPTION(o, h, mem) \
+ { VALUE flag = rb_hash_aref(h, ID2SYM(rb_intern(#mem))); dp(flag);\
+ if (flag == Qtrue) { o->mem = 1; } \
+ if (flag == Qfalse) { o->mem = 0; } \
+ }
+ SET_COMPILE_OPTION(option, opt, inline_const_cache);
+ SET_COMPILE_OPTION(option, opt, peephole_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);
+#undef SET_COMPILE_OPTION
+ }
+ else {
+ rb_raise(rb_eTypeError, "Compile option must be Hash/true/false/nil");
+ }
+}
+
+static VALUE
+make_compile_option_value(yarv_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)
+ {
+ SET_COMPILE_OPTION(option, opt, inline_const_cache);
+ SET_COMPILE_OPTION(option, opt, peephole_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);
+ }
+#undef SET_COMPILE_OPTION
+ return opt;
+}
+
+VALUE
+yarv_iseq_new(NODE *node, VALUE name, VALUE file_name,
+ VALUE parent, VALUE type)
+{
+ return yarv_iseq_new_with_opt(node, name, file_name, parent, type,
+ &COMPILE_OPTION_DEFAULT);
+}
+
+static VALUE
+yarv_iseq_new_with_bopt_and_opt(NODE *node, VALUE name, VALUE file_name,
+ VALUE parent, VALUE type, VALUE bopt,
+ const yarv_compile_option_t *option)
+{
+ yarv_iseq_t *iseq;
+ VALUE self = iseq_alloc(cYarvISeq);
+
+ GetISeqPtr(self, iseq);
+ iseq->self = self;
+
+ prepare_iseq_build(iseq, name, file_name, parent, type, bopt, option);
+ iseq_compile(self, node);
+ cleanup_iseq_build(iseq);
+ return self;
+}
+
+VALUE
+yarv_iseq_new_with_opt(NODE *node, VALUE name, VALUE file_name,
+ VALUE parent, VALUE type,
+ const yarv_compile_option_t *option)
+{
+ return yarv_iseq_new_with_bopt_and_opt(node, name, file_name, parent, type,
+ Qfalse, option);
+}
+
+VALUE
+yarv_iseq_new_with_bopt(NODE *node, VALUE name, VALUE file_name,
+ VALUE parent, VALUE type, VALUE bopt)
+{
+ return yarv_iseq_new_with_bopt_and_opt(node, name, file_name, parent, type,
+ bopt, &COMPILE_OPTION_DEFAULT);
+}
+
+VALUE iseq_build_from_ary(yarv_iseq_t *iseq, VALUE line,
+ VALUE locals, VALUE args, VALUE exception, VALUE body);
+
+#define CHECK_ARRAY(v) rb_convert_type(v, T_ARRAY, "Array", "to_ary")
+#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")
+#define CHECK_INTEGER(v) (NUM2LONG(v), v)
+VALUE
+iseq_load(VALUE self, VALUE data, VALUE parent, VALUE opt)
+{
+ VALUE iseqval = iseq_alloc(cYarvISeq);
+
+ VALUE magic, version1, version2, format_type, misc;
+ VALUE name, filename, line;
+ VALUE type, body, locals, args, exception;
+
+ VALUE iseq_type;
+ struct st_table *type_map = 0;
+ yarv_iseq_t *iseq;
+ yarv_compile_option_t option;
+
+ /* [magic, major_version, minor_version, format_type, misc,
+ * name, filename, line,
+ * type, locals, args, exception_table, body]
+ */
+
+ data = CHECK_ARRAY(data);
+
+ magic = CHECK_STRING(rb_ary_entry(data, 0));
+ version1 = CHECK_INTEGER(rb_ary_entry(data, 1));
+ version2 = CHECK_INTEGER(rb_ary_entry(data, 2));
+ format_type = CHECK_INTEGER(rb_ary_entry(data, 3));
+ misc = rb_ary_entry(data, 4); /* TODO */
+
+ name = CHECK_STRING(rb_ary_entry(data, 5));
+ filename = CHECK_STRING(rb_ary_entry(data, 6));
+ line = CHECK_ARRAY(rb_ary_entry(data, 7));
+
+ type = CHECK_SYMBOL(rb_ary_entry(data, 8));
+ locals = CHECK_ARRAY(rb_ary_entry(data, 9));
+ args = rb_ary_entry(data, 10);
+ if (FIXNUM_P(args) || (args = CHECK_ARRAY(args))) {
+ /* */
+ }
+ exception = CHECK_ARRAY(rb_ary_entry(data, 11));
+ body = CHECK_ARRAY(rb_ary_entry(data, 12));
+
+ GetISeqPtr(iseqval, iseq);
+ iseq->self = iseqval;
+
+ if (type_map == 0) {
+ type_map = st_init_numtable();
+ st_insert(type_map, ID2SYM(rb_intern("toplevel")), ISEQ_TYPE_TOP);
+ st_insert(type_map, ID2SYM(rb_intern("method")), ISEQ_TYPE_METHOD);
+ st_insert(type_map, ID2SYM(rb_intern("block")), ISEQ_TYPE_BLOCK);
+ st_insert(type_map, ID2SYM(rb_intern("class")), ISEQ_TYPE_CLASS);
+ st_insert(type_map, ID2SYM(rb_intern("rescue")), ISEQ_TYPE_RESCUE);
+ st_insert(type_map, ID2SYM(rb_intern("ensure")), ISEQ_TYPE_ENSURE);
+ st_insert(type_map, ID2SYM(rb_intern("eval")), ISEQ_TYPE_EVAL);
+ }
+
+ if (st_lookup(type_map, type, &iseq_type) == 0) {
+ rb_raise(rb_eTypeError, "unsupport type: %p", type);
+ }
+
+ if (parent == Qnil) {
+ parent = 0;
+ }
+
+ make_compile_option(&option, opt);
+ prepare_iseq_build(iseq, name, filename,
+ parent, iseq_type, 0, &option);
+
+ iseq_build_from_ary(iseq, line, locals, args, exception, body);
+
+ cleanup_iseq_build(iseq);
+ return iseqval;
+}
+
+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(self, data, 0, opt);
+}
+
+static NODE *
+compile_string(VALUE str, VALUE file, VALUE line)
+{
+ NODE *node;
+ node = rb_compile_string(StringValueCStr(file), str, NUM2INT(line));
+
+ if (ruby_nerrs > 0) {
+ ruby_nerrs = 0;
+ rb_exc_raise(GET_THREAD()->errinfo); // TODO: check err
+ }
+ return node;
+}
+
+static VALUE
+iseq_s_compile(int argc, VALUE *argv, VALUE self)
+{
+ VALUE str, file = Qnil, line = INT2FIX(1), opt = Qnil;
+ NODE *node;
+ yarv_compile_option_t option;
+
+ rb_scan_args(argc, argv, "13", &str, &file, &line, &opt);
+
+ file = file == Qnil ? rb_str_new2("<compiled>") : file;
+ line = line == Qnil ? INT2FIX(1) : line;
+
+ node = compile_string(str, file, line);
+ make_compile_option(&option, opt);
+ return yarv_iseq_new_with_opt(node, rb_str_new2("<main>"), file, Qfalse,
+ ISEQ_TYPE_TOP, &option);
+}
+
+static VALUE
+iseq_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;
+ yarv_compile_option_t option;
+
+ rb_scan_args(argc, argv, "11", &file, &opt);
+ fname = StringValueCStr(file);
+
+ f = rb_file_open(fname, "r");
+
+ parser = rb_parser_new();
+ node = rb_parser_compile_file(parser, fname, f, NUM2INT(line));
+ make_compile_option(&option, opt);
+ return yarv_iseq_new_with_opt(node, rb_str_new2("<main>"), file, Qfalse,
+ ISEQ_TYPE_TOP, &option);
+}
+
+static VALUE
+iseq_s_compile_option_set(VALUE self, VALUE opt)
+{
+ yarv_compile_option_t option;
+ make_compile_option(&option, opt);
+ COMPILE_OPTION_DEFAULT = option;
+ return make_compile_option_value(&option);
+}
+
+static yarv_iseq_t *
+iseq_check(VALUE val)
+{
+ yarv_iseq_t *iseq;
+ GetISeqPtr(val, iseq);
+ if (!iseq->name) {
+ rb_raise(rb_eTypeError, "uninitialized InstructionSequence");
+ }
+ return iseq;
+}
+
+VALUE yarv_th_eval(yarv_thread_t *th, VALUE iseqval);
+
+static VALUE
+iseq_eval(VALUE self)
+{
+ return yarv_th_eval(GET_THREAD(), self);
+}
+
+static VALUE
+iseq_inspect(VALUE self)
+{
+ char buff[0x100];
+ yarv_iseq_t *iseq = iseq_check(self);
+
+ snprintf(buff, sizeof(buff), "<ISeq:%s@%s>",
+ RSTRING_PTR(iseq->name), RSTRING_PTR(iseq->file_name));
+
+ return rb_str_new2(buff);
+}
+
+VALUE iseq_data_to_ary(yarv_iseq_t *iseq);
+
+static VALUE
+iseq_to_a(VALUE self)
+{
+ yarv_iseq_t *iseq = iseq_check(self);
+ return iseq_data_to_ary(iseq);
+}
+
+/*
+ now, search algorithm is brute force. but this should be binary search.
+ */
+static unsigned short
+find_line_no(yarv_iseq_t *iseqdat, unsigned long pos)
+{
+ unsigned long i, size = iseqdat->insn_info_size;
+ struct insn_info_struct *iiary = iseqdat->insn_info_tbl;
+
+ for (i = 0; i < size; i++) {
+ if (iiary[i].position == pos) {
+ return iiary[i].line_no;
+ }
+ }
+ // rb_bug("find_line_no: can't find %lu", pos);
+ return 0;
+}
+
+static unsigned short
+find_prev_line_no(yarv_iseq_t *iseqdat, unsigned long pos)
+{
+ unsigned long i, size = iseqdat->insn_info_size;
+ struct insn_info_struct *iiary = iseqdat->insn_info_tbl;
+
+ for (i = 0; i < size; i++) {
+ if (iiary[i].position == pos) {
+ if (i > 0) {
+ return iiary[i - 1].line_no;
+ }
+ else {
+ return 0;
+ }
+ }
+ }
+ rb_bug("find_prev_line_no: can't find - %lu", pos);
+ return 0;
+}
+
+static VALUE
+insn_operand_intern(yarv_iseq_t *iseq,
+ int insn, int op_no, VALUE op,
+ int len, int pos, VALUE *pnop, VALUE child)
+{
+ char *types = insn_op_types(insn);
+ char type = types[op_no];
+ VALUE ret;
+ char buff[0x100];
+
+ switch (type) {
+ case TS_OFFSET: /* LONG */
+ snprintf(buff, sizeof(buff), "%ld", pos + len + op);
+ ret = rb_str_new2(buff);
+ break;
+
+ case TS_NUM: /* ULONG */
+ snprintf(buff, sizeof(buff), "%lu", op);
+ ret = rb_str_new2(buff);
+ break;
+
+ case TS_LINDEX:
+ {
+ yarv_iseq_t *ip = iseq->local_iseq;
+
+ ret =
+ rb_str_new2(
+ rb_id2name(ip->local_tbl[ip->local_size - op + 1]));
+ break;
+ }
+ case TS_DINDEX:{
+ if (insn == BIN(getdynamic) || insn == BIN(setdynamic)) {
+ yarv_iseq_t *ip = iseq;
+ int level = *pnop;
+ int i;
+ for (i = 0; i < level; i++) {
+ ip = ip->parent_iseq;
+ }
+ ret =
+ rb_str_new2(rb_id2name
+ (ip->local_tbl[ip->local_size - op]));
+ }
+ else {
+ ret = rb_inspect(INT2FIX(op));
+ }
+ break;
+ }
+ case TS_ID: /* ID (symbol) */
+ op = ID2SYM(op);
+ case TS_VALUE: /* VALUE */
+ ret = rb_inspect(op);
+ if (CLASS_OF(op) == cYarvISeq) {
+ rb_ary_push(child, op);
+ }
+ break;
+
+ case TS_ISEQ: /* iseq */
+ {
+ yarv_iseq_t *iseq = (yarv_iseq_t *)op;
+ if (iseq) {
+ ret = iseq->name;
+ if (child) {
+ rb_ary_push(child, iseq->self);
+ }
+ }
+ else {
+ ret = rb_str_new2("nil");
+ }
+ break;
+ }
+ case TS_GENTRY:
+ {
+ struct global_entry *entry = (struct global_entry *)op;
+ ret = rb_str_new2(rb_id2name(entry->id));
+ }
+ break;
+
+ case TS_IC:
+ ret = rb_str_new2("<ic>");
+ break;
+
+ case TS_CDHASH:
+ ret = rb_str_new2("<cdhash>");
+ break;
+
+ default:
+ rb_bug("iseq_disasm: unknown operand type: %c", type);
+ }
+ return ret;
+}
+
+/**
+ * Disassemble a instruction
+ * Iseq -> Iseq inspect object
+ */
+VALUE
+iseq_disasm_insn(VALUE ret, VALUE *iseq, int pos,
+ yarv_iseq_t *iseqdat, VALUE child)
+{
+ int insn = iseq[pos];
+ int len = insn_len(insn);
+ int i, j;
+ char *types = insn_op_types(insn);
+ VALUE str = rb_str_new(0, 0);
+ char buff[0x100];
+ char insn_name_buff[0x100];
+
+ strcpy(insn_name_buff, insn_name(insn));
+ if (0) {
+ for (i = 0; insn_name_buff[i]; i++) {
+ if (insn_name_buff[i] == '_') {
+ insn_name_buff[i] = 0;
+ }
+ }
+ }
+
+ snprintf(buff, sizeof(buff), "%04d %-16s ", pos, insn_name_buff);
+ rb_str_cat2(str, buff);
+
+ for (j = 0; types[j]; j++) {
+ char *types = insn_op_types(insn);
+ VALUE opstr = insn_operand_intern(iseqdat, insn, j, iseq[pos + j + 1],
+ len, pos, &iseq[pos + j + 2],
+ child);
+ rb_str_concat(str, opstr);
+
+ GC_CHECK();
+ if (types[j + 1]) {
+ rb_str_cat2(str, ", ");
+ }
+ }
+
+ {
+ int line_no = find_line_no(iseqdat, pos);
+ int prev = find_prev_line_no(iseqdat, pos);
+ if (line_no && line_no != prev) {
+ snprintf(buff, sizeof(buff), "%-70s(%4d)", RSTRING_PTR(str),
+ line_no);
+ str = rb_str_new2(buff);
+ }
+ }
+ if (ret) {
+ rb_str_cat2(str, "\n");
+ rb_str_concat(ret, str);
+ }
+ else {
+ printf("%s\n", RSTRING_PTR(str));
+ }
+ return len;
+}
+
+static char *
+catch_type(int type)
+{
+ switch (type) {
+ case CATCH_TYPE_RESCUE:
+ return "rescue";
+ case CATCH_TYPE_ENSURE:
+ return "ensure";
+ case CATCH_TYPE_RETRY:
+ return "retry";
+ case CATCH_TYPE_BREAK:
+ return "break";
+ case CATCH_TYPE_REDO:
+ return "redo";
+ case CATCH_TYPE_NEXT:
+ return "next";
+ default:
+ rb_bug("unknown catch type (%d)", type);
+ return 0;
+ }
+}
+
+VALUE
+iseq_disasm(VALUE self)
+{
+ yarv_iseq_t *iseqdat = iseq_check(self);
+ VALUE *iseq;
+ VALUE str = rb_str_new(0, 0);
+ VALUE child = rb_ary_new();
+ unsigned long size;
+ int i;
+ ID *tbl;
+ char buff[0x200];
+
+ iseq = iseqdat->iseq;
+ size = iseqdat->size;
+
+ rb_str_cat2(str, "== disasm: ");
+
+ rb_str_concat(str, iseq_inspect(iseqdat->self));
+ for (i = RSTRING_LEN(str); i < 72; i++) {
+ rb_str_cat2(str, "=");
+ }
+ rb_str_cat2(str, "\n");
+
+ /* show catch table information */
+ if (iseqdat->catch_table_size != 0) {
+ rb_str_cat2(str, "== catch table\n");
+ }
+ for (i = 0; i < iseqdat->catch_table_size; i++) {
+ struct catch_table_entry *entry = &iseqdat->catch_table[i];
+ sprintf(buff,
+ "| catch type: %-6s st: %04d ed: %04d sp: %04d cont: %04d\n",
+ catch_type((int)entry->type), (int)entry->start,
+ (int)entry->end, (int)entry->sp, (int)entry->cont);
+ rb_str_cat2(str, buff);
+ if (entry->iseq) {
+ rb_str_concat(str, iseq_disasm(entry->iseq));
+ }
+ }
+ if (iseqdat->catch_table_size != 0) {
+ rb_str_cat2(str, "|-------------------------------------"
+ "-----------------------------------\n");
+ }
+
+ /* show local table information */
+ tbl = iseqdat->local_tbl;
+
+ if (tbl) {
+ int opt = 0;
+ if (iseqdat->type == ISEQ_TYPE_METHOD ||
+ iseqdat->type == ISEQ_TYPE_TOP ||
+ iseqdat->type == ISEQ_TYPE_CLASS) {
+ opt = 1;
+ }
+
+ snprintf(buff, sizeof(buff),
+ "local scope table (size: %d, argc: %d)\n",
+ iseqdat->local_size, iseqdat->argc);
+ rb_str_cat2(str, buff);
+
+ for (i = 0; i < iseqdat->local_size - opt; i++) {
+ const char *name = rb_id2name(tbl[i + opt]);
+ char info[0x100];
+ char argi[0x100] = "";
+ char opti[0x100] = "";
+
+ if (iseqdat->arg_opts) {
+ int argc = iseqdat->argc;
+ int opts = iseqdat->arg_opts;
+ if (i >= argc && i < argc + opts - 1) {
+ snprintf(opti, sizeof(opti), "Opt=%ld",
+ iseqdat->arg_opt_tbl[i - argc]);
+ }
+ }
+
+ snprintf(argi, sizeof(argi), "%s%s%s%s", /* arg, opts, rest, block */
+ iseqdat->argc > i ? "Arg" : "",
+ opti,
+ iseqdat->arg_rest - 1 == i ? "Rest" : "",
+ iseqdat->arg_block - 1 == i ? "Block" : "");
+
+ snprintf(info, sizeof(info), "%s%s%s%s", name ? name : "?",
+ *argi ? "<" : "", argi, *argi ? ">" : "");
+
+ snprintf(buff, sizeof(buff), "[%2d] %-11s",
+ iseqdat->local_size - i, info);
+
+ rb_str_cat2(str, buff);
+ }
+ rb_str_cat2(str, "\n");
+ }
+
+ GC_CHECK();
+
+ /* show each line */
+ for (i = 0; i < size;) {
+ i += iseq_disasm_insn(str, iseq, i, iseqdat, child);
+ }
+
+ for (i = 0; i < RARRAY_LEN(child); i++) {
+ VALUE isv = rb_ary_entry(child, i);
+ rb_str_concat(str, iseq_disasm(isv));
+ }
+
+ return str;
+}
+
+char *
+node_name(int node)
+{
+ switch (node) {
+ case NODE_METHOD:
+ return "NODE_METHOD";
+ case NODE_FBODY:
+ return "NODE_FBODY";
+ case NODE_CFUNC:
+ return "NODE_CFUNC";
+ case NODE_SCOPE:
+ return "NODE_SCOPE";
+ case NODE_BLOCK:
+ return "NODE_BLOCK";
+ case NODE_IF:
+ return "NODE_IF";
+ case NODE_CASE:
+ return "NODE_CASE";
+ case NODE_WHEN:
+ return "NODE_WHEN";
+ case NODE_OPT_N:
+ return "NODE_OPT_N";
+ case NODE_WHILE:
+ return "NODE_WHILE";
+ case NODE_UNTIL:
+ return "NODE_UNTIL";
+ case NODE_ITER:
+ return "NODE_ITER";
+ case NODE_FOR:
+ return "NODE_FOR";
+ case NODE_BREAK:
+ return "NODE_BREAK";
+ case NODE_NEXT:
+ return "NODE_NEXT";
+ case NODE_REDO:
+ return "NODE_REDO";
+ case NODE_RETRY:
+ return "NODE_RETRY";
+ case NODE_BEGIN:
+ return "NODE_BEGIN";
+ case NODE_RESCUE:
+ return "NODE_RESCUE";
+ case NODE_RESBODY:
+ return "NODE_RESBODY";
+ case NODE_ENSURE:
+ return "NODE_ENSURE";
+ case NODE_AND:
+ return "NODE_AND";
+ case NODE_OR:
+ return "NODE_OR";
+ case NODE_NOT:
+ return "NODE_NOT";
+ case NODE_MASGN:
+ return "NODE_MASGN";
+ case NODE_LASGN:
+ return "NODE_LASGN";
+ case NODE_DASGN:
+ return "NODE_DASGN";
+ case NODE_DASGN_CURR:
+ return "NODE_DASGN_CURR";
+ case NODE_GASGN:
+ return "NODE_GASGN";
+ case NODE_IASGN:
+ return "NODE_IASGN";
+ case NODE_CDECL:
+ return "NODE_CDECL";
+ case NODE_CVASGN:
+ return "NODE_CVASGN";
+ case NODE_CVDECL:
+ return "NODE_CVDECL";
+ case NODE_OP_ASGN1:
+ return "NODE_OP_ASGN1";
+ case NODE_OP_ASGN2:
+ return "NODE_OP_ASGN2";
+ case NODE_OP_ASGN_AND:
+ return "NODE_OP_ASGN_AND";
+ case NODE_OP_ASGN_OR:
+ return "NODE_OP_ASGN_OR";
+ case NODE_CALL:
+ return "NODE_CALL";
+ case NODE_FCALL:
+ return "NODE_FCALL";
+ case NODE_VCALL:
+ return "NODE_VCALL";
+ case NODE_SUPER:
+ return "NODE_SUPER";
+ case NODE_ZSUPER:
+ return "NODE_ZSUPER";
+ case NODE_ARRAY:
+ return "NODE_ARRAY";
+ case NODE_ZARRAY:
+ return "NODE_ZARRAY";
+ case NODE_VALUES:
+ return "NODE_VALUES";
+ case NODE_HASH:
+ return "NODE_HASH";
+ case NODE_RETURN:
+ return "NODE_RETURN";
+ case NODE_YIELD:
+ return "NODE_YIELD";
+ case NODE_LVAR:
+ return "NODE_LVAR";
+ case NODE_DVAR:
+ return "NODE_DVAR";
+ case NODE_GVAR:
+ return "NODE_GVAR";
+ case NODE_IVAR:
+ return "NODE_IVAR";
+ case NODE_CONST:
+ return "NODE_CONST";
+ case NODE_CVAR:
+ return "NODE_CVAR";
+ case NODE_NTH_REF:
+ return "NODE_NTH_REF";
+ case NODE_BACK_REF:
+ return "NODE_BACK_REF";
+ case NODE_MATCH:
+ return "NODE_MATCH";
+ case NODE_MATCH2:
+ return "NODE_MATCH2";
+ case NODE_MATCH3:
+ return "NODE_MATCH3";
+ case NODE_LIT:
+ return "NODE_LIT";
+ case NODE_STR:
+ return "NODE_STR";
+ case NODE_DSTR:
+ return "NODE_DSTR";
+ case NODE_XSTR:
+ return "NODE_XSTR";
+ case NODE_DXSTR:
+ return "NODE_DXSTR";
+ case NODE_EVSTR:
+ return "NODE_EVSTR";
+ case NODE_DREGX:
+ return "NODE_DREGX";
+ case NODE_DREGX_ONCE:
+ return "NODE_DREGX_ONCE";
+ case NODE_ARGS:
+ return "NODE_ARGS";
+ case NODE_POSTARG:
+ return "NODE_POSTARG";
+ case NODE_ARGSCAT:
+ return "NODE_ARGSCAT";
+ case NODE_ARGSPUSH:
+ return "NODE_ARGSPUSH";
+ case NODE_SPLAT:
+ return "NODE_SPLAT";
+ case NODE_TO_ARY:
+ return "NODE_TO_ARY";
+ case NODE_BLOCK_ARG:
+ return "NODE_BLOCK_ARG";
+ case NODE_BLOCK_PASS:
+ return "NODE_BLOCK_PASS";
+ case NODE_DEFN:
+ return "NODE_DEFN";
+ case NODE_DEFS:
+ return "NODE_DEFS";
+ case NODE_ALIAS:
+ return "NODE_ALIAS";
+ case NODE_VALIAS:
+ return "NODE_VALIAS";
+ case NODE_UNDEF:
+ return "NODE_UNDEF";
+ case NODE_CLASS:
+ return "NODE_CLASS";
+ case NODE_MODULE:
+ return "NODE_MODULE";
+ case NODE_SCLASS:
+ return "NODE_SCLASS";
+ case NODE_COLON2:
+ return "NODE_COLON2";
+ case NODE_COLON3:
+ return "NODE_COLON3";
+ case NODE_CREF:
+ return "NODE_CREF";
+ case NODE_DOT2:
+ return "NODE_DOT2";
+ case NODE_DOT3:
+ return "NODE_DOT3";
+ case NODE_FLIP2:
+ return "NODE_FLIP2";
+ case NODE_FLIP3:
+ return "NODE_FLIP3";
+ case NODE_ATTRSET:
+ return "NODE_ATTRSET";
+ case NODE_SELF:
+ return "NODE_SELF";
+ case NODE_NIL:
+ return "NODE_NIL";
+ case NODE_TRUE:
+ return "NODE_TRUE";
+ case NODE_FALSE:
+ return "NODE_FALSE";
+ case NODE_ERRINFO:
+ return "NODE_ERRINFO";
+ case NODE_DEFINED:
+ return "NODE_DEFINED";
+ case NODE_POSTEXE:
+ return "NODE_POSTEXE";
+ case NODE_ALLOCA:
+ return "NODE_ALLOCA";
+ case NODE_BMETHOD:
+ return "NODE_BMETHOD";
+ case NODE_MEMO:
+ return "NODE_MEMO";
+ case NODE_IFUNC:
+ return "NODE_IFUNC";
+ case NODE_DSYM:
+ return "NODE_DSYM";
+ case NODE_ATTRASGN:
+ return "NODE_ATTRASGN";
+ case NODE_PRELUDE:
+ return "NODE_PRELUDE";
+ case NODE_LAMBDA:
+ return "NODE_LAMBDA";
+ case NODE_OPTBLOCK:
+ return "NODE_OPTBLOCK";
+ case NODE_LAST:
+ return "NODE_LAST";
+ default:
+ rb_bug("unknown node (%d)", node);
+ return 0;
+ }
+}
+
+int
+debug_node(NODE *node)
+{
+ printf("node type: %d\n", nd_type(node));
+ printf("node name: %s\n", node_name(nd_type(node)));
+ printf("node filename: %s\n", node->nd_file);
+ return 0;
+}
+
+#define DECL_SYMBOL(name) \
+ static VALUE sym_##name
+
+#define INIT_SYMBOL(name) \
+ sym_##name = ID2SYM(rb_intern(#name))
+
+static VALUE
+register_label(struct st_table *table, int idx)
+{
+ VALUE sym;
+ char buff[0x20];
+
+ snprintf(buff, 0x20, "label_%u", idx);
+ sym = ID2SYM(rb_intern(buff));
+ st_insert(table, idx, sym);
+ return sym;
+}
+
+static VALUE
+exception_type2symbol(VALUE type)
+{
+ ID id;
+ switch(type) {
+ case CATCH_TYPE_RESCUE: id = rb_intern("rescue"); break;
+ case CATCH_TYPE_ENSURE: id = rb_intern("ensure"); break;
+ case CATCH_TYPE_RETRY: id = rb_intern("retry"); break;
+ case CATCH_TYPE_BREAK: id = rb_intern("break"); break;
+ case CATCH_TYPE_REDO: id = rb_intern("redo"); break;
+ case CATCH_TYPE_NEXT: id = rb_intern("next"); break;
+ default:
+ rb_bug("...");
+ }
+ return ID2SYM(id);
+}
+
+static int
+cdhash_each(VALUE key, VALUE value, VALUE ary)
+{
+ rb_ary_push(ary, key);
+ rb_ary_push(ary, value);
+ return ST_CONTINUE;
+}
+
+VALUE
+iseq_data_to_ary(yarv_iseq_t *iseq)
+{
+ int i, pos, opt = 0;
+ VALUE *seq;
+
+ VALUE val = rb_ary_new();
+ VALUE type; /* Symbol */
+ VALUE locals = rb_ary_new();
+ VALUE args = rb_ary_new();
+ VALUE body = rb_ary_new(); /* [[:insn1, ...], ...] */
+ VALUE nbody;
+ VALUE line = rb_ary_new();
+ VALUE exception = rb_ary_new(); /* [[....]] */
+
+ static VALUE insn_syms[YARV_MAX_INSTRUCTION_SIZE];
+ struct st_table *labels_table = st_init_numtable();
+
+ DECL_SYMBOL(toplevel);
+ DECL_SYMBOL(method);
+ DECL_SYMBOL(block);
+ DECL_SYMBOL(class);
+ DECL_SYMBOL(rescue);
+ DECL_SYMBOL(ensure);
+ DECL_SYMBOL(eval);
+
+ if (sym_toplevel == 0) {
+ int i;
+ for (i=0; i<YARV_MAX_INSTRUCTION_SIZE; i++) {
+ insn_syms[i] = ID2SYM(rb_intern(insn_name(i)));
+ }
+ INIT_SYMBOL(toplevel);
+ INIT_SYMBOL(method);
+ INIT_SYMBOL(block);
+ INIT_SYMBOL(class);
+ INIT_SYMBOL(rescue);
+ INIT_SYMBOL(ensure);
+ INIT_SYMBOL(eval);
+ }
+
+ /* type */
+ switch(iseq->type) {
+ case ISEQ_TYPE_TOP: type = sym_toplevel; break;
+ case ISEQ_TYPE_METHOD: type = sym_method; break;
+ case ISEQ_TYPE_BLOCK: type = sym_block; break;
+ case ISEQ_TYPE_CLASS: type = sym_class; break;
+ case ISEQ_TYPE_RESCUE: type = sym_rescue; break;
+ case ISEQ_TYPE_ENSURE: type = sym_ensure; break;
+ case ISEQ_TYPE_EVAL: type = sym_eval; break;
+ default: rb_bug("unsupported iseq type");
+ };
+
+ if (iseq->type == ISEQ_TYPE_METHOD ||
+ iseq->type == ISEQ_TYPE_TOP ||
+ iseq->type == ISEQ_TYPE_CLASS) {
+ opt = 1;
+ }
+
+ /* locals */
+ for (i=opt; i<iseq->local_size; i++) {
+ ID lid = iseq->local_tbl[i];
+ if (lid) {
+ rb_ary_push(locals, ID2SYM(lid));
+ }
+ else {
+ rb_ary_push(locals, ID2SYM(rb_intern("#arg_rest")));
+ }
+ }
+
+ /* args */
+ {
+ /*
+ * [argc, # argc
+ * [label1, label2, ...] # opts
+ * rest_iex,
+ * block_idx,
+ * ]
+ * or
+ * argc (Fixnum) # arg_simple
+ */
+ VALUE arg_opt_labels = rb_ary_new();
+ int j;
+
+ for (j=0; j<iseq->arg_opts; j++) {
+ rb_ary_push(arg_opt_labels,
+ register_label(labels_table, iseq->arg_opt_tbl[j]));
+ }
+
+ /* commit */
+ if (iseq->arg_simple) {
+ args = INT2FIX(iseq->argc);
+ }
+ else {
+ rb_ary_push(args, INT2FIX(iseq->argc));
+ rb_ary_push(args, INT2FIX(iseq->arg_opts));
+ rb_ary_push(args, arg_opt_labels);
+ rb_ary_push(args, INT2FIX(iseq->arg_rest));
+ rb_ary_push(args, INT2FIX(iseq->arg_block));
+ }
+ }
+
+ /* body */
+ for (seq = iseq->iseq; seq < iseq->iseq + iseq->size; ) {
+ VALUE ary = rb_ary_new();
+ VALUE insn = *seq++;
+ int j, len = insn_len(insn);
+ VALUE *nseq = seq + len - 1;
+
+ rb_ary_push(ary, insn_syms[insn]);
+ for (j=0; j<len-1; j++, seq++) {
+ switch (insn_op_type(insn, j)) {
+ case TS_OFFSET: {
+ unsigned int idx = nseq - iseq->iseq + *seq;
+ rb_ary_push(ary, register_label(labels_table, idx));
+ break;
+ }
+ case TS_LINDEX:
+ case TS_DINDEX:
+ case TS_NUM:
+ rb_ary_push(ary, INT2FIX(*seq));
+ break;
+ case TS_VALUE:
+ rb_ary_push(ary, *seq);
+ break;
+ case TS_ISEQ:
+ {
+ yarv_iseq_t *iseq = (yarv_iseq_t *)*seq;
+ if (iseq) {
+ VALUE val = iseq_data_to_ary(iseq);
+ rb_ary_push(ary, val);
+ }
+ else {
+ rb_ary_push(ary, Qnil);
+ }
+ }
+ break;
+ case TS_GENTRY:
+ {
+ struct global_entry *entry = (struct global_entry *)*seq;
+ rb_ary_push(ary, ID2SYM(entry->id));
+ }
+ break;
+ case TS_IC:
+ rb_ary_push(ary, Qnil);
+ break;
+ case TS_ID:
+ rb_ary_push(ary, ID2SYM(*seq));
+ break;
+ case TS_CDHASH:
+ {
+ VALUE hash = *seq;
+ VALUE val = rb_ary_new();
+ int i;
+
+ rb_hash_foreach(hash, cdhash_each, val);
+
+ for (i=0; i<RARRAY_LEN(val); i+=2) {
+ VALUE pos = FIX2INT(rb_ary_entry(val, i+1));
+ unsigned int idx = nseq - iseq->iseq + pos;
+
+ rb_ary_store(val, i+1,
+ register_label(labels_table, idx));
+ }
+ rb_ary_push(ary, val);
+ }
+ break;
+ default:
+ rb_bug("unknown operand: %c", insn_op_type(insn, j));
+ }
+ }
+ rb_ary_push(body, ary);
+ }
+
+ nbody = body;
+
+ /* exception */
+ for (i=0; i<iseq->catch_table_size; i++) {
+ VALUE ary = rb_ary_new();
+ struct catch_table_entry *entry = &iseq->catch_table[i];
+ rb_ary_push(ary, exception_type2symbol(entry->type));
+ if (entry->iseq) {
+ yarv_iseq_t *eiseq;
+ GetISeqPtr(entry->iseq, eiseq);
+ rb_ary_push(ary, iseq_data_to_ary(eiseq));
+ }
+ else {
+ rb_ary_push(ary, Qnil);
+ }
+ rb_ary_push(ary, register_label(labels_table, entry->start));
+ rb_ary_push(ary, register_label(labels_table, entry->end));
+ rb_ary_push(ary, register_label(labels_table, entry->cont));
+ rb_ary_push(ary, INT2FIX(entry->sp));
+ rb_ary_push(exception, ary);
+ }
+
+ /* make body with labels */
+ body = rb_ary_new();
+
+ for (i=0, pos=0; i<RARRAY_LEN(nbody); i++) {
+ VALUE ary = RARRAY_PTR(nbody)[i];
+ VALUE label;
+
+ if (st_lookup(labels_table, pos, &label)) {
+ rb_ary_push(body, label);
+ }
+
+ rb_ary_push(body, ary);
+ pos += RARRAY_LEN(ary);
+ }
+
+ st_free_table(labels_table);
+
+ /* build array */
+
+ /* [magic, major_version, minor_version, format_type, misc,
+ * name, filename, line,
+ * type, args, vars, exception_table, body]
+ */
+ rb_ary_push(val, rb_str_new2("YARVInstructionSimpledataFormat"));
+ rb_ary_push(val, INT2FIX(1));
+ rb_ary_push(val, INT2FIX(1));
+ rb_ary_push(val, INT2FIX(1));
+ rb_ary_push(val, Qnil);
+ rb_ary_push(val, iseq->name);
+ rb_ary_push(val, iseq->file_name);
+ rb_ary_push(val, line);
+ rb_ary_push(val, type);
+ rb_ary_push(val, locals);
+ rb_ary_push(val, args);
+ rb_ary_push(val, exception);
+ rb_ary_push(val, body);
+ return val;
+}
+
+struct st_table *
+insn_make_insn_table(void)
+{
+ struct st_table *table;
+ int i;
+ table = st_init_numtable();
+
+ for (i=0; i<YARV_MAX_INSTRUCTION_SIZE; i++) {
+ st_insert(table, ID2SYM(rb_intern(insn_name(i))), i);
+ }
+
+ return table;
+}
+
+
+void
+Init_ISeq(void)
+{
+ /* declare YARVCore::InstructionSequence */
+ cYarvISeq = rb_define_class_under(mYarvCore, "InstructionSequence", rb_cObject);
+ rb_define_alloc_func(cYarvISeq, iseq_alloc);
+ rb_define_method(cYarvISeq, "inspect", iseq_inspect, 0);
+ rb_define_method(cYarvISeq, "disasm", iseq_disasm, 0);
+ rb_define_method(cYarvISeq, "to_a", iseq_to_a, 0);
+ rb_define_method(cYarvISeq, "eval", iseq_eval, 0);
+
+ rb_define_singleton_method(cYarvISeq, "load", iseq_s_load, -1);
+ rb_define_singleton_method(cYarvISeq, "compile", iseq_s_compile, -1);
+ rb_define_singleton_method(cYarvISeq, "new", iseq_s_compile, -1);
+ rb_define_singleton_method(cYarvISeq, "compile_file", iseq_s_compile_file, -1);
+ rb_define_singleton_method(cYarvISeq, "compile_option=",
+ iseq_s_compile_option_set, 1);
+}
+