Revert "prevent ramp from having duplicate stops"

CHANGELOG.md

@@ -1,5 +1,7 @@
 ## master
 
+* Revert ramp validation checks that broke some styles.
+
 ## 8.4.0
 
 v8.0.0 styles are fully compatible with v8.4.0.

lib/validate/parsed.js

@@ -328,8 +328,8 @@ module.exports = function(style, reference) {
                             error(key + '[0]', val[0], 'zoom level for piecewise-constant functions must be an integer');
                         }
 
-                        if (val[0] <= lastStop) {
-                            error(key + '[0]', val[0], 'array stops must appear in ascending order and have no duplicates');
+                        if (val[0] < lastStop) {
+                            error(key + '[0]', val[0], 'array stops must appear in ascending order');
                         }
 
                         lastStop = val[0];

test/fixture/functions.input.json

@@ -125,26 +125,6 @@
         }
       }
     },
-    {
-      "id": "duplicate-stop",
-      "type": "line",
-      "source": "source",
-      "source-layer": "layer",
-      "paint": {
-        "line-width": {
-          "stops": [
-            [
-              1,
-              0
-            ],
-            [
-              1,
-              0
-            ]
-          ]
-        }
-      }
-    },
     {
       "id": "v6-array-function",
       "type": "fill",

test/fixture/functions.output.json

@@ -36,23 +36,19 @@
     "line": 102
   },
   {
-    "message": "layers[8].paint.line-width.stops[1][0]: array stops must appear in ascending order and have no duplicates",
+    "message": "layers[8].paint.line-width.stops[1][0]: array stops must appear in ascending order",
     "line": 121
   },
   {
-    "message": "layers[9].paint.line-width.stops[1][0]: array stops must appear in ascending order and have no duplicates",
-    "line": 141
+    "message": "layers[9].paint.fill-translate[0]: number expected, object found",
+    "line": 135
   },
   {
-    "message": "layers[10].paint.fill-translate[0]: number expected, object found",
-    "line": 155
+    "message": "layers[9].paint.fill-translate[1]: number expected, object found",
+    "line": 139
   },
   {
-    "message": "layers[10].paint.fill-translate[1]: number expected, object found",
-    "line": 159
-  },
-  {
-    "message": "layers[12].paint.fill-antialias.stops[0][0]: zoom level for piecewise-constant functions must be an integer",
-    "line": 185
+    "message": "layers[11].paint.fill-antialias.stops[0][0]: zoom level for piecewise-constant functions must be an integer",
+    "line": 165
   }
 ]