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Improve replace_symbolt precondition message #5219

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Merged
merged 1 commit into from
Feb 10, 2020
Merged

Improve replace_symbolt precondition message #5219

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8 changes: 6 additions & 2 deletions src/util/replace_symbol.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,10 @@ void replace_symbolt::insert(
const symbol_exprt &old_expr,
const exprt &new_expr)
{
PRECONDITION(old_expr.type() == new_expr.type());
PRECONDITION_WITH_DIAGNOSTICS(
old_expr.type() == new_expr.type(),
"types to be replaced should match. old type:\n" +
old_expr.type().pretty() + "\nnew.type:\n" + new_expr.type().pretty());
expr_map.insert(std::pair<irep_idt, exprt>(
old_expr.get_identifier(), new_expr));
}
Expand All @@ -46,7 +49,8 @@ bool replace_symbolt::replace_symbol_expr(symbol_exprt &s) const

DATA_INVARIANT(
s.type() == it->second.type(),
"type of symbol to be replaced should match");
"types to be replaced should match. s.type:\n" + s.type().pretty() +
"\nit->second.type:\n" + it->second.type().pretty());
static_cast<exprt &>(s) = it->second;

return false;
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