sfos/ledger
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Rather than just aborting, report an intelligent error if the comma operator

Browse source 
is missing one of its operands in a value expression.  This kind of reporting
still needs to be done for all the other operators as well.
This commit is contained in:
John Wiegley 2008-07-17 17:49:08 -04:00
parent 6815aac361
commit 78813fc616
1 changed files with 10 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
valexpr.cc
View file

@ -578,8 +578,12 @@ void value_expr_t::compute(value_t& result, const details_t& details,
}
case O_COM:
assert(left);
assert(right);
if (! left)
throw new compute_error("Comma operator missing left operand",
new valexpr_context(this));
if (! right)
throw new compute_error("Comma operator missing right operand",
new valexpr_context(this));
left->compute(result, details, context);
right->compute(result, details, context);
break;
@ -1731,10 +1735,12 @@ bool write_value_expr(std::ostream& out,
break;
case value_expr_t::O_COM:
if (write_value_expr(out, node->left, relaxed, node_to_find, start_pos, end_pos))
if (node->left &&
write_value_expr(out, node->left, relaxed, node_to_find, start_pos, end_pos))
found = true;
out << ", ";
if (write_value_expr(out, node->right, relaxed, node_to_find, start_pos, end_pos))
if (node->right &&
write_value_expr(out, node->right, relaxed, node_to_find, start_pos, end_pos))
found = true;
break;
case value_expr_t::O_QUES: