forked from mia/Aegisub
c59b9d59b8
Make the vtables less absurdly huge (knocks 100KB off aegisub32.exe), eliminate some copies of the values when constructing the options, and use an enum class for the value type.
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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/// @file option_visit.h
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/// @brief Cajun JSON visitor to load config values.
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/// @see option_visit.cpp
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/// @ingroup libaegisub
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#include "libaegisub/option.h"
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#include "libaegisub/cajun/elements.h"
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#include "libaegisub/cajun/visitor.h"
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#include <memory>
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#include <vector>
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namespace agi {
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DEFINE_BASE_EXCEPTION_NOINNER(OptionJsonValueError, Exception)
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueArray, OptionJsonValueError, "options/value/array")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueSingle, OptionJsonValueError, "options/value")
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DEFINE_SIMPLE_EXCEPTION_NOINNER(OptionJsonValueNull, OptionJsonValueError, "options/value")
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class ConfigVisitor final : public json::ConstVisitor {
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/// Option map being populated
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OptionValueMap &values;
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/// Option name prefix to add to read names
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std::string name;
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/// Log errors rather than throwing them, for when loading user config files
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/// (as a bad user config file shouldn't make the program fail to start)
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bool ignore_errors;
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/// Replace existing options rather than changing their value, so that the
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/// default value is changed to the new one
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bool replace;
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template<class ErrorType>
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void Error(const char *message);
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template<class OptionValueType>
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std::unique_ptr<OptionValue> ReadArray(json::Array const& src, std::string const& array_type);
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void AddOptionValue(std::unique_ptr<OptionValue>&& opt);
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public:
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ConfigVisitor(OptionValueMap &val, const std::string &member_name, bool ignore_errors = false, bool replace = false);
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void Visit(const json::Array& array);
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void Visit(const json::Object& object);
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void Visit(const json::Integer& number);
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void Visit(const json::Double& number);
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void Visit(const json::String& string);
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void Visit(const json::Boolean& boolean);
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void Visit(const json::Null& null);
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};
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} // namespace agi
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