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ast.c: Use kept script_lines data instead of re-opening the source file (#5019) 

ast.c: Use kept script_lines data instead of re-open the source file
This commit is contained in:
Yusuke Endoh 2021-10-26 01:58:01 +09:00 committed by GitHub
parent 33113c6b64
commit 09fa773e04
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GPG Key ID: 4AEE18F83AFDEB23
Notes: git 2021-10-26 01:58:21 +09:00 
Merged-By: mame <mame@ruby-lang.org>
4 changed files with 18 additions and 16 deletions
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9
ast.c
View File

@ -195,12 +195,12 @@ script_lines(VALUE path)
static VALUE
ast_s_of(rb_execution_context_t *ec, VALUE module, VALUE body, VALUE keep_script_lines)
{
VALUE path, node, lines;
VALUE path, node, lines = Qnil;
int node_id;
if (rb_frame_info_p(body)) {
rb_frame_info_get(body, &path, &node_id);
if (NIL_P(path)) return Qnil;
rb_frame_info_get(body, &path, &lines, &node_id);
if (NIL_P(path) && NIL_P(lines)) return Qnil;
}
else {
const rb_iseq_t *iseq = NULL;
@ -220,10 +220,11 @@ ast_s_of(rb_execution_context_t *ec, VALUE module, VALUE body, VALUE keep_script
rb_raise(rb_eArgError, "cannot get AST for method defined in eval");
}
path = rb_iseq_path(iseq);
lines = iseq->body->variable.script_lines;
node_id = iseq->body->location.node_id;
}
if (!NIL_P(lines = script_lines(path))) {
if (!NIL_P(lines) || !NIL_P(lines = script_lines(path))) {
node = rb_ast_parse_array(lines, keep_script_lines);
}
else if (RSTRING_LEN(path) == 2 && memcmp(RSTRING_PTR(path), "-e", 2) == 0) {

2
internal/vm.h
View File

@ -111,7 +111,7 @@ VALUE rb_backtrace_to_str_ary(VALUE obj);
VALUE rb_backtrace_to_location_ary(VALUE obj);
void rb_backtrace_each(VALUE (*iter)(VALUE recv, VALUE str), VALUE output);
int rb_frame_info_p(VALUE obj);
void rb_frame_info_get(VALUE obj, VALUE *path, int *node_id);
void rb_frame_info_get(VALUE obj, VALUE *path, VALUE *script_lines, int *node_id);
MJIT_SYMBOL_EXPORT_BEGIN
VALUE rb_ec_backtrace_object(const struct rb_execution_context_struct *ec);

1
parse.y
View File

@ -6414,6 +6414,7 @@ lex_getline(struct parser_params *p)
VALUE line = (*p->lex.gets)(p, p->lex.input);
if (NIL_P(line)) return line;
must_be_ascii_compatible(line);
if (RB_OBJ_FROZEN(line)) line = rb_str_dup(line); // needed for RubyVM::AST.of because script_lines in iseq is deep-frozen
#ifndef RIPPER
if (p->debug_lines) {
rb_enc_associate(line, p->enc);

22
vm_backtrace.c
View File

@ -283,19 +283,16 @@ location_base_label_m(VALUE self)
return location_base_label(location_ptr(self));
}
static VALUE
location_path(rb_backtrace_location_t *loc)
static const rb_iseq_t *
location_iseq(rb_backtrace_location_t *loc)
{
switch (loc->type) {
case LOCATION_TYPE_ISEQ:
return rb_iseq_path(loc->iseq);
return loc->iseq;
case LOCATION_TYPE_CFUNC:
if (loc->iseq) {
return rb_iseq_path(loc->iseq);
}
return Qnil;
return loc->iseq;
default:
rb_bug("location_path: unreachable");
rb_bug("location_iseq: unreachable");
UNREACHABLE;
}
}
@ -313,7 +310,8 @@ location_path(rb_backtrace_location_t *loc)
static VALUE
location_path_m(VALUE self)
{
return location_path(location_ptr(self));
const rb_iseq_t *iseq = location_iseq(location_ptr(self));
return iseq ? rb_iseq_path(iseq) : Qnil;
}
#ifdef USE_ISEQ_NODE_ID
@ -336,11 +334,13 @@ location_node_id(rb_backtrace_location_t *loc)
#endif
void
rb_frame_info_get(VALUE obj, VALUE *path, int *node_id)
rb_frame_info_get(VALUE obj, VALUE *path, VALUE *script_lines, int *node_id)
{
#ifdef USE_ISEQ_NODE_ID
rb_backtrace_location_t *loc = location_ptr(obj);
*path = location_path(loc);
const rb_iseq_t *iseq = location_iseq(loc);
*path = iseq ? rb_iseq_path(iseq) : Qnil;
*script_lines = iseq ? iseq->body->variable.script_lines : Qnil;
*node_id = location_node_id(loc);
#else
*path = Qnil;