From 6fe660acf902fff137e52e8d8659a7b49897c74c Mon Sep 17 00:00:00 2001
From: Ben Burdette <bburdette@gmail.com>
Date: Wed, 24 Jun 2020 12:33:05 -0600
Subject: [PATCH] re-remove

---
 src/error-demo/error-demo.cc | 162 -----------------------------------
 1 file changed, 162 deletions(-)
 delete mode 100644 src/error-demo/error-demo.cc

diff --git a/src/error-demo/error-demo.cc b/src/error-demo/error-demo.cc
deleted file mode 100644
index 8c73a8c83..000000000
--- a/src/error-demo/error-demo.cc
+++ /dev/null
@@ -1,162 +0,0 @@
-#include "logging.hh"
-#include "nixexpr.hh"
-#include "util.hh"
-
-#include <iostream>
-#include <optional>
-
-using namespace nix;
-
-MakeError(DemoError, Error);
-
-int main()
-{
-    verbosity = lvlVomit;
-
-    // In each program where errors occur, this has to be set.
-    ErrorInfo::programName = std::optional("error-demo");
-
-    // 'DemoError' appears as error name.
-    try {
-        throw DemoError("demo error was thrown");
-    } catch (Error &e) {
-        logger->logEI(e.info());
-    }
-
-    // appending to the hint from the previous error
-    try {
-        auto e = Error("initial error");
-        throw DemoError(e.info());
-    } catch (Error &e) {
-        ErrorInfo ei = e.info();
-        // using normaltxt to avoid the default yellow highlighting.
-        ei.hint = hintfmt("%s; subsequent error message.", 
-            normaltxt(e.info().hint ? e.info().hint->str() : ""));
-        logger->logEI(ei);
-    }
-
-    // SysError; picks up errno
-    try {
-        auto x = readFile(-1);
-    }
-    catch (SysError &e) {
-        std::cout << "errno was: " << e.errNo << std::endl;
-        logError(e.info());
-    }
-
-    // current exception
-    try {
-        throw DemoError("DemoError handled as a %1%", "std::exception");
-    }
-    catch (...) {
-        const std::exception_ptr &eptr = std::current_exception();
-        try
-        {
-            std::rethrow_exception(eptr);
-        }
-        catch (std::exception& e)
-        {
-            std::cerr << e.what() << std::endl;
-        }
-    }
-
-    // For completeness sake, show 'info' through 'vomit' levels.
-    // But this is maybe a heavy format for those.
-    logger->logEI(
-        ErrorInfo { .level = lvlInfo,
-                    .name = "Info name",
-                    .description = "Info description",
-        });
-
-    logger->logEI(
-        ErrorInfo { .level = lvlTalkative,
-                    .name = "Talkative name",
-                    .description = "Talkative description",
-        });
-
-    logger->logEI(
-        ErrorInfo { .level = lvlChatty,
-                    .name = "Chatty name",
-                    .description = "Chatty description",
-        });
-
-    logger->logEI(
-        ErrorInfo { .level = lvlDebug,
-                    .name = "Debug name",
-                    .description = "Debug description",
-        });
-
-    logger->logEI(
-        ErrorInfo { .level = lvlVomit,
-                    .name = "Vomit name",
-                    .description = "Vomit description",
-        });
-
-    // Error in a program; no hint and no nix code.
-    logError(
-        ErrorInfo { .name = "name",
-                    .description = "error description",
-        });
-
-    // Warning with name, description, and hint.
-    // The hintfmt function makes all the substituted text yellow.
-    logWarning(
-        ErrorInfo { .name = "name",
-                    .description = "error description",
-                    .hint = hintfmt("there was a %1%", "warning"),
-        });
-
-    // Warning with nix file, line number, column, and the lines of
-    // code where a warning occurred.
-    SymbolTable testTable;
-    auto problem_file = testTable.create("myfile.nix");
-
-    logWarning(
-        ErrorInfo { .name = "warning name",
-                    .description = "warning description",
-                    .hint = hintfmt("this hint has %1% templated %2%!!",
-                        "yellow",
-                        "values"),
-                    .nixCode = NixCode {
-                        .errPos = Pos(foFile, problem_file, 40, 13),
-                        .prevLineOfCode = std::nullopt,
-                        .errLineOfCode = "this is the problem line of code",
-                        .nextLineOfCode = std::nullopt
-                    }});
-
-    // Error with previous and next lines of code.
-    logError(
-        ErrorInfo { .name = "error name",
-                    .description = "error with code lines",
-                    .hint = hintfmt("this hint has %1% templated %2%!!",
-                        "yellow",
-                        "values"),
-                    .nixCode = NixCode {
-                        .errPos = Pos(foFile, problem_file, 40, 13),
-                        .prevLineOfCode = "previous line of code",
-                        .errLineOfCode = "this is the problem line of code",
-                        .nextLineOfCode = "next line of code",
-                    }});
-
-
-    // Error without lines of code.
-    logError(
-        ErrorInfo { .name = "error name",
-                    .description = "error without any code lines.",
-                    .hint = hintfmt("this hint has %1% templated %2%!!",
-                        "yellow",
-                        "values"),
-                    .nixCode = NixCode {
-                        .errPos = Pos(foFile, problem_file, 40, 13)
-                    }});
-
-    // Error with only hint and name..
-    logError(
-        ErrorInfo { .name = "error name",
-                    .hint = hintfmt("hint %1%", "only"),
-                    .nixCode = NixCode {
-                        .errPos = Pos(foFile, problem_file, 40, 13)
-                    }});
-
-    return 0;
-}