src: migrate ERR_INDEX_OUT_OF_RANGE in C++

This patch migrates the "Index out of range" errors in C++ to errors with the code `ERR_INDEX_OUT_OF_RANGE` which have equivalents in JavaScript. PR-URL: nodejs#20121 Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
anonrig · Apr 19, 2018 · 7e269f5 · 7e269f5
1 parent 0f16528
commit 7e269f5
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Showing 3 changed files with 13 additions and 6 deletions.
diff --git a/src/node_buffer.cc b/src/node_buffer.cc
@@ -21,6 +21,7 @@
 
 #include "node.h"
 #include "node_buffer.h"
+#include "node_errors.h"
 
 #include "env-inl.h"
 #include "string_bytes.h"
@@ -38,7 +39,7 @@
 
 #define THROW_AND_RETURN_IF_OOB(r)                                          \
   do {                                                                      \
-    if (!(r)) return env->ThrowRangeError("Index out of range");            \
+    if (!(r)) return node::THROW_ERR_INDEX_OUT_OF_RANGE(env);               \
   } while (0)
 
 #define SLICE_START_END(start_arg, end_arg, end_max)                        \
@@ -544,7 +545,7 @@ void Copy(const FunctionCallbackInfo<Value> &args) {
     return args.GetReturnValue().Set(0);
 
   if (source_start > ts_obj_length)
-    return env->ThrowRangeError("Index out of range");
+    return node::THROW_ERR_INDEX_OUT_OF_RANGE(env);
 
   if (source_end - source_start > target_length - target_start)
     source_end = source_start + target_length - target_start;
@@ -728,9 +729,9 @@ void CompareOffset(const FunctionCallbackInfo<Value> &args) {
   THROW_AND_RETURN_IF_OOB(ParseArrayIndex(args[5], ts_obj_length, &source_end));
 
   if (source_start > ts_obj_length)
-    return env->ThrowRangeError("Index out of range");
+    return node::THROW_ERR_INDEX_OUT_OF_RANGE(env);
   if (target_start > target_length)
-    return env->ThrowRangeError("Index out of range");
+    return node::THROW_ERR_INDEX_OUT_OF_RANGE(env);
 
   CHECK_LE(source_start, source_end);
   CHECK_LE(target_start, target_end);

diff --git a/src/node_errors.h b/src/node_errors.h
@@ -17,8 +17,9 @@ namespace node {
 // a `Local<Value>` containing the TypeError with proper code and message
 
 #define ERRORS_WITH_CODE(V)                                                  \
+  V(ERR_INDEX_OUT_OF_RANGE, RangeError)                                      \
   V(ERR_MEMORY_ALLOCATION_FAILED, Error)                                     \
-  V(ERR_STRING_TOO_LONG, Error)                                             \
+  V(ERR_STRING_TOO_LONG, Error)                                              \
   V(ERR_BUFFER_TOO_LARGE, Error)
 
 #define V(code, type)                                                         \
@@ -42,6 +43,7 @@ namespace node {
 // Errors with predefined static messages
 
 #define PREDEFINED_ERROR_MESSAGES(V)                                         \
+  V(ERR_INDEX_OUT_OF_RANGE, "Index out of range")                            \
   V(ERR_MEMORY_ALLOCATION_FAILED, "Failed to allocate memory")
 
 #define V(code, message)                                                     \

diff --git a/test/parallel/test-buffer-alloc.js b/test/parallel/test-buffer-alloc.js
@@ -982,7 +982,11 @@ common.expectsError(() => {
   const a = Buffer.alloc(1);
   const b = Buffer.alloc(1);
   a.copy(b, 0, 0x100000000, 0x100000001);
-}, { code: undefined, type: RangeError, message: 'Index out of range' });
+}, {
+  code: 'ERR_INDEX_OUT_OF_RANGE',
+  type: RangeError,
+  message: 'Index out of range'
+});
 
 // Unpooled buffer (replaces SlowBuffer)
 {