OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

compiler: Better error message of unsafe.Offsetof(method value). 

From-SVN: r203454
This commit is contained in:
Ian Lance Taylor 2013-10-11 18:10:03 +00:00
parent 0213a547b0
commit d621811443
1 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
gcc/go/gofrontend/expressions.cc
View File

@ -7253,6 +7253,15 @@ Builtin_call_expression::do_lower(Gogo* gogo, Named_object* function,
if (this->code_ == BUILTIN_OFFSETOF)
{
Expression* arg = this->one_arg();
if (arg->bound_method_expression() != NULL
|| arg->interface_field_reference_expression() != NULL)
{
this->report_error(_("invalid use of method value as argument "
"of Offsetof"));
return this;
}
Field_reference_expression* farg = arg->field_reference_expression();
while (farg != NULL)
{
@ -7262,7 +7271,8 @@ Builtin_call_expression::do_lower(Gogo* gogo, Named_object* function,
// it must not be reached through pointer indirections.
if (farg->expr()->deref() != farg->expr())
{
this->report_error(_("argument of Offsetof implies indirection of an embedded field"));
this->report_error(_("argument of Offsetof implies "
"indirection of an embedded field"));
return this;
}
// Go up until we reach the original base.
@ -7672,6 +7682,8 @@ Find_call_expression::expression(Expression** pexpr)
bool
Builtin_call_expression::do_is_constant() const
{
if (this->is_error_expression())
return true;
switch (this->code_)
{
case BUILTIN_LEN: