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remove throws on invalid

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This commit is contained in:
ado 2020-12-10 21:05:17 +01:00
parent cbdd350b63
commit 47ef93b532
2 changed files with 18 additions and 39 deletions
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23
include/ss/converter.hpp
View File

@ -274,19 +274,12 @@ class converter {
// conversion
////////////////
#ifdef SS_THROW_ON_INVALID
#define SS_RETURN_ON_INVALID // nop
#else
#define SS_RETURN_ON_INVALID \
if (!valid()) { \
return; \
}
#endif
template <typename T>
void extract_one(no_validator_t<T>& dst, const string_range msg,
size_t pos) {
SS_RETURN_ON_INVALID;
if (!valid()) {
return;
}
if (!extract(msg.first, msg.second, dst)) {
set_error_invalid_conversion(msg, pos);
@ -351,11 +344,13 @@ class converter {
template <>
inline void converter::extract_one<std::string>(std::string& dst,
const string_range msg, size_t) {
SS_RETURN_ON_INVALID;
const string_range msg,
size_t) {
if (!valid()) {
return;
}
extract(msg.first, msg.second, dst);
}
#undef SS_RETURN_ON_INVALID
} /* ss */

34
include/ss/extract.hpp
View File

@ -7,14 +7,6 @@
#include <stdexcept>
#include <string>
#ifdef SS_THROW_ON_INVALID
#define SS_THROW_OR_NULL(x) throw std::invalid_argument(x)
#define SS_THROW_OR_FALSE(x) throw std::invalid_argument(x)
#else
#define SS_THROW_OR_NULL(x) return std::nullopt
#define SS_THROW_OR_FALSE(x) return false
#endif
namespace ss {
// todo
@ -47,7 +39,7 @@ template <typename T>
std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
const char* begin, const char* const end) {
if (begin == end) {
SS_THROW_OR_NULL("floating point");
return std::nullopt;
}
int sign = 1;
T int_part = 0.0;
@ -73,7 +65,7 @@ std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
++begin;
break;
} else {
SS_THROW_OR_NULL("floating point");
return std::nullopt;
}
++begin;
}
@ -90,7 +82,7 @@ std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
++begin;
break;
} else {
SS_THROW_OR_NULL("floating point");
return std::nullopt;
}
++begin;
}
@ -117,7 +109,7 @@ std::enable_if_t<std::is_floating_point_v<T>, std::optional<T>> to_num(
}
if (begin != end) {
SS_THROW_OR_NULL("floating point");
return std::nullopt;
}
return sign * (int_part + frac_part) * exp_part;
@ -127,7 +119,7 @@ inline std::optional<short> from_char(char c) {
if (c >= '0' && c <= '9') {
return c - '0';
}
SS_THROW_OR_NULL("integral");
return std::nullopt;
}
#if defined(__clang__) || defined(__GNUC__) || defined(__GUNG__)
@ -279,7 +271,7 @@ template <typename T>
std::enable_if_t<std::is_integral_v<T>, std::optional<T>> to_num(
const char* begin, const char* end) {
if (begin == end) {
SS_THROW_OR_NULL("integral");
return std::nullopt;
}
bool is_negative = false;
if constexpr (std::is_signed_v<T>) {
@ -302,7 +294,7 @@ std::enable_if_t<std::is_integral_v<T>, std::optional<T>> to_num(
!digit ||
shift_and_add_overflow<T>(value, digit.value(),
add_last_digit_owerflow)) {
SS_THROW_OR_NULL("integral");
return std::nullopt;
}
}
@ -337,11 +329,9 @@ template <typename T>
std::enable_if_t<std::is_integral_v<T> || std::is_floating_point_v<T>, bool>
extract(const char* begin, const char* end, T& value) {
auto optional_value = to_num<T>(begin, end);
#ifndef SS_THROW_ON_INVALID
if (!optional_value) {
return false;
}
#endif
value = optional_value.value();
return true;
}
@ -367,16 +357,13 @@ inline bool extract(const char* begin, const char* end, bool& value) {
}
}
SS_THROW_OR_FALSE("boolean");
return false;
}
template <>
inline bool extract(const char* begin, const char* end, char& value) {
value = *begin;
if (end != begin + 1) {
SS_THROW_OR_FALSE("character");
}
return true;
return (end == begin + 1);
}
template <>
@ -385,7 +372,4 @@ inline bool extract(const char* begin, const char* end, std::string& value) {
return true;
}
#undef SS_THROW_OR_NULL
#undef SS_THROW_OR_FALSE
} /* ss */