src: move JSONWriter into its own file

The JSONWriter feature is not inherently related to the report
feature in any way.

As a drive-by fix, remove a number of unused header includes.

PR-URL: https://github.com/nodejs/node/pull/32552
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>

1 files changed, 2 insertions, 62 deletions

diff --git a/src/node_report_utils.cc b/src/node_report_utils.cc
index efa15790b9b..abbf6d529d0 100644
--- a/src/node_report_utils.cc
+++ b/src/node_report_utils.cc
@@ -1,9 +1,11 @@
+#include "json_utils.h"
 #include "node_internals.h"
 #include "node_report.h"
 #include "util-inl.h"
 
 namespace report {
 
+using node::JSONWriter;
 using node::MallocedBuffer;
 
 static constexpr auto null = JSONWriter::Null{};
@@ -225,66 +227,4 @@ void WalkHandle(uv_handle_t* h, void* arg) {
   writer->json_end();
 }
 
-std::string EscapeJsonChars(const std::string& str) {
-  const std::string control_symbols[0x20] = {
-      "\\u0000", "\\u0001", "\\u0002", "\\u0003", "\\u0004", "\\u0005",
-      "\\u0006", "\\u0007", "\\b", "\\t", "\\n", "\\v", "\\f", "\\r",
-      "\\u000e", "\\u000f", "\\u0010", "\\u0011", "\\u0012", "\\u0013",
-      "\\u0014", "\\u0015", "\\u0016", "\\u0017", "\\u0018", "\\u0019",
-      "\\u001a", "\\u001b", "\\u001c", "\\u001d", "\\u001e", "\\u001f"
-  };
-
-  std::string ret;
-  size_t last_pos = 0;
-  size_t pos = 0;
-  for (; pos < str.size(); ++pos) {
-    std::string replace;
-    char ch = str[pos];
-    if (ch == '\\') {
-      replace = "\\\\";
-    } else if (ch == '\"') {
-      replace = "\\\"";
-    } else {
-      size_t num = static_cast<size_t>(ch);
-      if (num < 0x20) replace = control_symbols[num];
-    }
-    if (!replace.empty()) {
-      if (pos > last_pos) {
-        ret += str.substr(last_pos, pos - last_pos);
-      }
-      last_pos = pos + 1;
-      ret += replace;
-    }
-  }
-  // Append any remaining symbols.
-  if (last_pos < str.size()) {
-    ret += str.substr(last_pos, pos - last_pos);
-  }
-  return ret;
-}
-
-std::string Reindent(const std::string& str, int indent_depth) {
-  std::string indent;
-  for (int i = 0; i < indent_depth; i++) indent += ' ';
-
-  std::string out;
-  std::string::size_type pos = 0;
-  do {
-    std::string::size_type prev_pos = pos;
-    pos = str.find('\n', pos);
-
-    out.append(indent);
-
-    if (pos == std::string::npos) {
-      out.append(str, prev_pos, std::string::npos);
-      break;
-    } else {
-      pos++;
-      out.append(str, prev_pos, pos - prev_pos);
-    }
-  } while (true);
-
-  return out;
-}
-
 }  // namespace report