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refactoring about source line.

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* iseq.c (find_line_no): renamed to rb_iseq_line_no().

* vm_backtrace.c (calc_lineno): add a comment why we need to use "pos-1".


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2017-11-10 05:26:52 +00:00
parent 324b6d306d
commit 61e4c99962
2 changed files with 8 additions and 17 deletions
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21
iseq.c
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@ -1252,8 +1252,8 @@ get_insn_info(const rb_iseq_t *iseq, size_t pos)
return &insns_info[i-1];
}
static unsigned int
find_line_no(const rb_iseq_t *iseq, size_t pos)
unsigned int
rb_iseq_line_no(const rb_iseq_t *iseq, size_t pos)
{
const struct iseq_insn_info_entry *entry = get_insn_info(iseq, pos);
@ -1265,17 +1265,6 @@ find_line_no(const rb_iseq_t *iseq, size_t pos)
}
}
unsigned int
rb_iseq_line_no(const rb_iseq_t *iseq, size_t pos)
{
if (pos == 0) {
return find_line_no(iseq, pos);
}
else {
return find_line_no(iseq, pos - 1);
}
}
static VALUE
id_to_name(ID id, VALUE default_value)
{
@ -1479,8 +1468,8 @@ rb_iseq_disasm_insn(VALUE ret, const VALUE *code, size_t pos,
}
{
unsigned int line_no = find_line_no(iseq, pos);
unsigned int prev = pos == 0 ? 0 : find_line_no(iseq, pos - 1);
unsigned int line_no = rb_iseq_line_no(iseq, pos);
unsigned int prev = pos == 0 ? 0 : rb_iseq_line_no(iseq, pos - 1);
if (line_no && line_no != prev) {
long slen = RSTRING_LEN(str);
slen = (slen > 70) ? 0 : (70 - slen);
@ -2295,7 +2284,7 @@ rb_iseqw_line_trace_each(VALUE iseqw, int (*func)(int line, rb_event_flag_t *eve
trace_num++;
if (func) {
int line = find_line_no(iseq, pos);
int line = rb_iseq_line_no(iseq, pos);
/* printf("line: %d\n", line); */
cont = (*func)(line, &events, data);
if (current_events != events) {

4
vm_backtrace.c
View file

@ -31,7 +31,9 @@ id2str(ID id)
inline static int
calc_lineno(const rb_iseq_t *iseq, const VALUE *pc)
{
return rb_iseq_line_no(iseq, pc - iseq->body->iseq_encoded);
size_t pos = (size_t)(pc - iseq->body->iseq_encoded);
/* use pos-1 because PC points next instruction at the beggining of instruction */
return rb_iseq_line_no(iseq, pos - 1);
}
int