Fix: Maximum call stack exceeded with large data

lib/codec/rle.js

@@ -1,4 +1,5 @@
 const varint = require('varint')
+const parquet_util = require('../util')
 
 function encodeRunBitpacked(values, opts) {
   for (let i = 0; i < values.length % 8; i++) {
@@ -137,7 +138,7 @@ exports.decodeValues = function(type, cursor, count, opts) {
       values.push(...decodeRunBitpacked(cursor, count, opts));
     } else {
       const count = header >> 1;
-      values.push(...decodeRunRepeated(cursor, count, opts));
+      parquet_util.arrayCopy(values, decodeRunRepeated(cursor, count, opts));
     }
   }
   values = values.slice(0,count);

lib/reader.js

@@ -328,13 +328,12 @@ function decodeDataPages(buffer, opts) {
         throw "invalid page type: " + pageType;
     }
 
-    Array.prototype.push.apply(data.rlevels, pageData.rlevels);
-    Array.prototype.push.apply(data.dlevels, pageData.dlevels);
-    Array.prototype.push.apply(data.values, pageData.values);
+    parquet_util.arrayCopy(data.rlevels, pageData.rlevels);
+    parquet_util.arrayCopy(data.dlevels, pageData.dlevels);
+    parquet_util.arrayCopy(data.values, pageData.values);
     data.count += pageData.count;
   }
 
-
   return data;
 }
 

lib/util.js

@@ -165,3 +165,9 @@ exports.fieldIndexOf = function(arr, elem) {
   return -1;
 }
 
+exports.arrayCopy = function(dest, src) {
+  const len = src.length
+  for(let i = 0; i < len; i++){
+    dest.push(src[i])
+  }
+}