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diff --git a/graphics/asymptote/LspCpp/include/LibLsp/JsonRpc/MessageIssue.h b/graphics/asymptote/LspCpp/include/LibLsp/JsonRpc/MessageIssue.h
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+#pragma once
+#include <string>
+#include <functional>
+#include <vector>
+namespace lsp
+{
+ class Log
+ {
+ public:
+ virtual ~Log() = default;
+
+ enum class Level
+ {
+ /**
+ * OFF is a special level that can be used to turn off logging.
+
+ */
+ OFF = 1,
+
+ /**
+ * SEVERE is a message level indicating a serious failure.
+ * <p>
+ * In general SEVERE messages should describe events that are
+ * of considerable importance and which will prevent normal
+ * program execution. They should be reasonably intelligible
+ * to end users and to system administrators.
+
+ */
+ SEVERE = 2,
+
+ /**
+ * WARNING is a message level indicating a potential problem.
+ * <p>
+ * In general WARNING messages should describe events that will
+ * be of interest to end users or system managers, or which
+ * indicate potential problems.
+
+ *
+ */
+ WARNING = 3,
+ /**
+ * INFO is a message level for informational messages.
+ * <p>
+ * Typically INFO messages will be written to the console
+ * or its equivalent. So the INFO level should only be
+ * used for reasonably significant messages that will
+ * make sense to end users and system administrators.
+
+ */
+ INFO = 3,
+ /**
+ * CONFIG is a message level for static configuration messages.
+ * <p>
+ * CONFIG messages are intended to provide a variety of static
+ * configuration information, to assist in debugging problems
+ * that may be associated with particular configurations.
+ * For example, CONFIG message might include the CPU type,
+ * the graphics depth, the GUI look-and-feel, etc.
+ * This level is initialized to <CODE>4</CODE>.
+ */
+
+ CONFIG = 4,
+
+
+
+ /**
+ * FINE is a message level providing tracing information.
+ * <p>
+ * All of FINE, FINER, and FINEST are intended for relatively
+ * detailed tracing. The exact meaning of the three levels will
+ * vary between subsystems, but in general, FINEST should be used
+ * for the most voluminous detailed output, FINER for somewhat
+ * less detailed output, and FINE for the lowest volume (and
+ * most important) messages.
+ * <p>
+ * In general the FINE level should be used for information
+ * that will be broadly interesting to developers who do not have
+ * a specialized interest in the specific subsystem.
+ * <p>
+ * FINE messages might include things like minor (recoverable)
+ * failures. Issues indicating potential performance problems
+ * are also worth logging as FINE.
+ * This level is initialized to <CODE>5</CODE>.
+ */
+ FINE = 5,
+
+ /**
+ * FINER indicates a fairly detailed tracing message.
+ * By default logging calls for entering, returning, or throwing
+ * an exception are traced at this level.
+ * This level is initialized to <CODE>400</CODE>.
+ */
+ FINER = 6,
+
+ /**
+ * FINEST indicates a highly detailed tracing message.
+ * This level is initialized to <CODE>300</CODE>.
+ */
+ FINEST = 7,
+
+ /**
+ * ALL indicates that all messages should be logged.
+ * This level is initialized to <CODE>Integer.MIN_VALUE</CODE>.
+ */
+ ALL,
+ };
+ virtual void log(Level level, std::wstring&& msg) = 0;
+ virtual void log(Level level, const std::wstring& msg) = 0;
+ virtual void log(Level level, std::string&& msg) = 0;
+ virtual void log(Level level, const std::string& msg) = 0;
+
+ void info(const std::string& msg)
+ {
+ log(Level::INFO, msg);
+ }
+ void info(const std::wstring& msg)
+ {
+ log(Level::INFO, msg);
+ }
+ void error(const std::string& msg)
+ {
+ log(Level::SEVERE, msg);
+ }
+ void error(const std::wstring& msg)
+ {
+ log(Level::SEVERE, msg);
+ }
+ void warning(const std::string& msg)
+ {
+ log(Level::WARNING, msg);
+ }
+ void warning(const std::wstring& msg)
+ {
+ log(Level::WARNING, msg);
+ }
+ };
+}
+
+class MessageIssue {
+
+public:
+ std::string text;
+
+ lsp::Log::Level code;
+
+ MessageIssue(const std::string& text, lsp::Log::Level code) :text(text), code(code)
+ {
+
+
+ }
+ MessageIssue(std::string&& text, lsp::Log::Level code) :text(text), code(code)
+ {
+
+
+ }
+
+
+ std::string getText() {
+ return text;
+ }
+
+ lsp::Log::Level getIssueCode() {
+ return code;
+ }
+
+
+ std::string toString() {
+ return getText();
+ }
+
+};
+class MessageIssueHandler
+{
+public:
+ /**
+ * Handle issues found while parsing or validating a message. The list of issues must not be empty.
+ */
+ virtual ~MessageIssueHandler() = default;
+
+ virtual void handle(std::vector<MessageIssue>&&) = 0;
+ virtual void handle( MessageIssue&&) = 0;
+};