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ruby--ruby/tool/ruby_vm/views/_leaf_helpers.erb
Koichi Sasada a0f12a0258
Use ID instead of GENTRY for gvars. (#3278)
Use ID instead of GENTRY for gvars.

Global variables are compiled into GENTRY (a pointer to struct
rb_global_entry). This patch replace this GENTRY to ID and
make the code simple.

We need to search GENTRY from ID every time (st_lookup), so
additional overhead will be introduced.
However, the performance of accessing global variables is not
important now a day and this simplicity helps Ractor development.
2020-07-03 16:56:44 +09:00

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%# -*- C -*-
%# Copyright (c) 2018 Urabe, Shyouhei. All rights reserved.
%#
%# This file is a part of the programming language Ruby. Permission is hereby
%# granted, to either redistribute and/or modify this file, provided that the
%# conditions mentioned in the file COPYING are met. Consult the file for
%# details.
%;
#line <%= __LINE__ + 1 %> <%=cstr __FILE__ %>
#include "iseq.h"
static bool
leafness_of_defined(rb_num_t op_type)
{
/* see also: vm_insnhelper.c:vm_defined() */
switch (op_type) {
case DEFINED_IVAR:
case DEFINED_IVAR2:
case DEFINED_GVAR:
case DEFINED_CVAR:
case DEFINED_YIELD:
case DEFINED_REF:
case DEFINED_ZSUPER:
return false;
case DEFINED_CONST:
case DEFINED_CONST_FROM:
/* has rb_autoload_load(); */
return false;
case DEFINED_FUNC:
case DEFINED_METHOD:
/* calls #respond_to_missing? */
return false;
default:
rb_bug("unknown operand %ld: blame @shyouhei.", op_type);
}
}
static bool
leafness_of_checkmatch(rb_num_t flag)
{
/* see also: vm_insnhelper.c:check_match() */
if (flag == VM_CHECKMATCH_TYPE_WHEN) {
return true;
}
else {
/* has rb_funcallv() */
return false;
}
}
#pragma RubyVM reset source