LSP integration steps 1-4, part of 5.

lsp/DiagnosticDisplay.h

@@ -0,0 +1,30 @@
+/*
+ * DiagnosticDisplay.h - Abstract interface for showing diagnostics
+ */
+#ifndef KTE_LSP_DIAGNOSTIC_DISPLAY_H
+#define KTE_LSP_DIAGNOSTIC_DISPLAY_H
+
+#include <string>
+#include <vector>
+
+#include "Diagnostic.h"
+
+namespace kte::lsp {
+class DiagnosticDisplay {
+public:
+	virtual ~DiagnosticDisplay() = default;
+
+	virtual void updateDiagnostics(const std::string &uri,
+	                               const std::vector<Diagnostic> &diagnostics) = 0;
+
+	virtual void showInlineDiagnostic(const Diagnostic &diagnostic) = 0;
+
+	virtual void showDiagnosticList(const std::vector<Diagnostic> &diagnostics) = 0;
+
+	virtual void hideDiagnosticList() = 0;
+
+	virtual void updateStatusBar(int errorCount, int warningCount) = 0;
+};
+} // namespace kte::lsp
+
+#endif // KTE_LSP_DIAGNOSTIC_DISPLAY_H