86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
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#pragma once
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#include "CesiumJsonWriter/ExtensionWriterContext.h"
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#include "CesiumJsonWriter/JsonWriter.h"
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#include <spdlog/fmt/fmt.h>
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namespace CesiumJsonWriter {
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/**
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* @brief Writes the extensions attached to the provided object as a new JSON
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* object.
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*
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* @tparam TExtended The type with extensions attached to write. This type must
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* have an `extensions` property of type `std::unordered_map<std::string,
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* std::any>` or a similar type with an `empty()` method that returns pairs of
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* `<std::string, std::any>` when iterated.
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* @param obj The object with extensions to write.
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* @param jsonWriter The writer to write the extensions object to.
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* @param context The \ref ExtensionWriterContext that provides information on
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* how to write each extension.
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*/
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template <typename TExtended>
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void writeJsonExtensions(
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const TExtended& obj,
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JsonWriter& jsonWriter,
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const ExtensionWriterContext& context) {
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if (obj.extensions.empty()) {
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return;
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}
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jsonWriter.StartObject();
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for (const auto& item : obj.extensions) {
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auto handler = context.createExtensionHandler(
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item.first,
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item.second,
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TExtended::TypeName);
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if (handler) {
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jsonWriter.Key(item.first);
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handler(item.second, jsonWriter, context);
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}
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}
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jsonWriter.EndObject();
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}
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/**
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* @brief Checks if the provided object has any extensions attached that have
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* been registered with the provided \ref ExtensionWriterContext.
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*
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* @tparam TExtended The type with extensions attached to write. This type must
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* have an `extensions` property of type `std::unordered_map<std::string,
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* std::any>` or a similar type with an `empty()` method that returns pairs of
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* `<std::string, std::any>` when iterated.
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* @param obj The object with extensions to write.
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* @param jsonWriter The writer to write the extensions object to.
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* @param context The \ref ExtensionWriterContext with registered extensions.
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* @returns True if any extensions attached to `obj` have been registered, false
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* otherwise.
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*/
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template <typename TExtended>
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bool hasRegisteredExtensions(
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const TExtended& obj,
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JsonWriter& jsonWriter,
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const ExtensionWriterContext& context) {
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bool hasRegisteredExtensions = false;
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for (const auto& item : obj.extensions) {
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auto handler = context.createExtensionHandler(
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item.first,
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item.second,
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TExtended::TypeName);
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if (handler) {
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hasRegisteredExtensions = true;
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} else if (
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context.getExtensionState(item.first) != ExtensionState::Disabled) {
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jsonWriter.emplaceWarning(fmt::format(
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"Encountered unregistered extension {}. This extension will be "
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"ignored. To silence this warning, disable the extension with "
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"ExtensionWriterContext::setExtensionState.",
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item.first));
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}
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}
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return hasRegisteredExtensions;
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}
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} // namespace CesiumJsonWriter
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