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Add and use type_error for type conversion failure

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This commit is contained in:
Danny Robson 2012-04-13 11:23:13 +10:00
parent 86b5abde08
commit fe77bf9d7d
2 changed files with 15 additions and 7 deletions
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14
json.cpp.rl
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@ -282,32 +282,32 @@ json::write (const json::node &node, std::ostream &os)
const json::object&
json::node::as_object (void) const
{ throw parse_error ("node is not an object"); }
{ throw type_error ("node is not an object"); }
const json::array&
json::node::as_array (void) const
{ throw parse_error ("node is not an array"); }
{ throw type_error ("node is not an array"); }
const json::string&
json::node::as_string (void) const
{ throw parse_error ("node is not a string"); }
{ throw type_error ("node is not a string"); }
const json::number&
json::node::as_number (void) const
{ throw parse_error ("node is not a number"); }
{ throw type_error ("node is not a number"); }
const json::boolean&
json::node::as_boolean (void) const
{ throw parse_error ("node is not a boolean"); }
{ throw type_error ("node is not a boolean"); }
const json::null&
json::node::as_null (void) const
{ throw parse_error ("node is not a null"); }
{ throw type_error ("node is not a null"); }
bool
@ -363,7 +363,7 @@ json::object::operator[](const std::string &key) const {
if (value == m_values.end ()) {
ostringstream ss;
ss << "no key: " << key;
throw json::parse_error (ss.str());
throw json::error (ss.str());
}
return *value->second;

8
json.hpp
View File

@ -226,6 +226,14 @@ namespace json {
{ ; }
};
/// Base class for all type conversion errors
class type_error : public error {
public:
type_error (const std::string &_what):
error (_what)
{ ; }
};
/// Base class for errors thrown during parsing
class parse_error : public error {
public: