From: Alexander Borisov <alexander.borisov@nginx.com>
Date: Mon, 15 Apr 2019 14:23:21 +0000 (+0300)
Subject: Fixed ToInteger function in accordance with the specification.
X-Git-Tag: 0.3.1~2
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=c9bf47ec6bc7f09e2cf878ae1449479e88535504;p=njs.git

Fixed ToInteger function in accordance with the specification.

According to ES6 type conversion 7.1.4.
---

diff --git a/njs/njs_array.c b/njs/njs_array.c
index 635561b4..841e43ee 100644
--- a/njs/njs_array.c
+++ b/njs/njs_array.c
@@ -493,7 +493,7 @@ njs_array_prototype_slice_continuation(njs_vm_t *vm, njs_value_t *args,
         return njs_trap(vm, NJS_TRAP_NUMBER_ARG);
     }
 
-    start = (int32_t) njs_primitive_value_to_integer(njs_arg(args, nargs, 1));
+    start = njs_primitive_value_to_integer(njs_arg(args, nargs, 1));
     length = njs_primitive_value_to_integer(&slice->length);
 
     if (start < 0) {
@@ -510,7 +510,7 @@ njs_array_prototype_slice_continuation(njs_vm_t *vm, njs_value_t *args,
 
     } else {
         if (!njs_is_undefined(njs_arg(args, nargs, 2))) {
-            end = (int32_t) njs_primitive_value_to_integer(&args[2]);
+            end = njs_primitive_value_to_integer(&args[2]);
 
         } else {
             end = length;
diff --git a/njs/njs_number.c b/njs/njs_number.c
index 3a89c4db..4a1f8b72 100644
--- a/njs/njs_number.c
+++ b/njs/njs_number.c
@@ -73,7 +73,7 @@ njs_primitive_value_to_number(const njs_value_t *value)
 }
 
 
-uint32_t
+int32_t
 njs_primitive_value_to_integer(const njs_value_t *value)
 {
     return njs_number_to_integer(njs_primitive_value_to_number(value));
@@ -783,11 +783,9 @@ njs_number_parse_float(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs,
 }
 
 
-nxt_noinline uint32_t
-njs_number_to_integer(double num)
+nxt_inline int64_t
+njs_number_to_int64(double num)
 {
-    int64_t  i64;
-
 #if (NXT_NAN_TO_UINT_CONVERSION != 0)
     /*
      * PPC32: NaN and Inf are converted to 0x8000000080000000
@@ -810,13 +808,17 @@ njs_number_to_integer(double num)
      */
 
     if (fabs(num) > 9007199254740992.0) {
-        i64 = fmod(num, 4294967296.0);
-
-    } else {
-        i64 = num;
+        return (int64_t) fmod(num, 4294967296.0);
     }
 
-    return (uint32_t) i64;
+    return (int64_t) num;
+}
+
+
+nxt_noinline int32_t
+njs_number_to_integer(double num)
+{
+    return (int32_t) njs_number_to_int64(num);
 }
 
 
diff --git a/njs/njs_number.h b/njs/njs_number.h
index d3b699d9..767a5a39 100644
--- a/njs/njs_number.h
+++ b/njs/njs_number.h
@@ -13,7 +13,7 @@
 
 uint32_t njs_value_to_index(const njs_value_t *value);
 double njs_primitive_value_to_number(const njs_value_t *value);
-uint32_t njs_primitive_value_to_integer(const njs_value_t *value);
+int32_t njs_primitive_value_to_integer(const njs_value_t *value);
 double njs_number_dec_parse(const u_char **start, const u_char *end);
 uint64_t njs_number_oct_parse(const u_char **start, const u_char *end);
 uint64_t njs_number_bin_parse(const u_char **start, const u_char *end);
@@ -32,7 +32,7 @@ njs_ret_t njs_number_parse_int(njs_vm_t *vm, njs_value_t *args,
     nxt_uint_t nargs, njs_index_t unused);
 njs_ret_t njs_number_parse_float(njs_vm_t *vm, njs_value_t *args,
     nxt_uint_t nargs, njs_index_t unused);
-nxt_noinline uint32_t njs_number_to_integer(double num);
+nxt_noinline int32_t njs_number_to_integer(double num);
 
 
 nxt_inline nxt_int_t