faster filter creation

mapbox · Jan 29, 2016 · b09bbe2 · b09bbe2
1 parent 9ba624b
commit b09bbe2
Showing 1 changed file with 45 additions and 37 deletions.
diff --git a/index.js b/index.js
@@ -30,7 +30,7 @@ function createFilter(filter) {
         op === '!in' ? filter.slice(2) : filter.slice(1);
 
     var opFn =
-        op === 'in' ? (key === '$type' ? inType : _in) :
+        op === 'in' ? (key === '$type' ? inType : inNormal) :
         op === '!in' ? (key === '$type' ? notInType : notIn) :
         op === '==' ? (key === '$type' ? equalsType : equals) :
         op === '!=' ? (key === '$type' ? notEqualsType : notEquals) :
@@ -40,44 +40,52 @@ function createFilter(filter) {
         op === '>=' ? greaterEqual :
         val.map(createFilter);
 
-    if (op === 'any') {
-        return function (f) {
-            for (var i = 0; i < opFn.length; i++) {
-                if (opFn[i](f)) return true;
-            }
-            return false;
-        }
-    } else if (op === 'all') {
-        return function (f) {
-            for (var i = 0; i < opFn.length; i++) {
-                if (!opFn[i](f)) return false;
-            }
-            return true;
+    if (op === 'any') return createAny(opFn);
+    if (op === 'all') return createAll(opFn);
+    if (op === 'none') return createNone(opFn);
+    return createOp(opFn, key, val);
+}
+
+function createOp(opFn, key, val) {
+    return function (f) {
+        opFn(f.properties || f.tags || {}, f.type, key, val);
+    }
+}
+function createAny(opFn) {
+    return function (f) {
+        for (var i = 0; i < opFn.length; i++) {
+            if (opFn[i](f)) return true;
         }
-    } else if (op === 'none') {
-        return function (f) {
-            for (var i = 0; i < opFn.length; i++) {
-                if (opFn[i](f)) return false;
-            }
-            return true;
+        return false;
+    }
+}
+function createAll(opFn) {
+    return function (f) {
+        for (var i = 0; i < opFn.length; i++) {
+            if (!opFn[i](f)) return false;
         }
+        return true;
     }
-
+}
+function createNone(opFn) {
     return function (f) {
-        return opFn(f.properties || f.tags || {}, f.type);
-    };
-
-    function _in(p, t) { return val.indexOf(p[key]) !== -1; }
-    function inType(p, t) { return val.indexOf(types[t]) !== -1; }
-    function notIn(p, t) { return val.indexOf(p[key]) === -1; }
-    function notInType(p, t) { return val.indexOf(types[t]) === -1; }
-    function equals(p, t) { return p[key] === val; }
-    function equalsType(p, t) { return t === typeLookup[val]; }
-    function notEquals(p, t) { return p[key] !== val; }
-    function notEqualsType(p, t) { return t !== typeLookup[val]; }
-    function lesser(p, t) { return typeof p[key] === typeof val && p[key] < val; }
-    function greater(p, t) { return typeof p[key] === typeof val && p[key] > val; }
-    function lesserEqual(p, t) { return typeof p[key] === typeof val && p[key] <= val; }
-    function greaterEqual(p, t) { return typeof p[key] === typeof val && p[key] >= val; }
-    function truth() { return true; }
+        for (var i = 0; i < opFn.length; i++) {
+            if (opFn[i](f)) return false;
+        }
+        return true;
+    }
 }
+
+function inNormal(p, t, key, val) { return val.indexOf(p[key]) !== -1; }
+function inType(p, t, key, val) { return val.indexOf(types[t]) !== -1; }
+function notIn(p, t, key, val) { return val.indexOf(p[key]) === -1; }
+function notInType(p, t, key, val) { return val.indexOf(types[t]) === -1; }
+function equals(p, t, key, val) { return p[key] === val; }
+function equalsType(p, t, key, val) { return t === typeLookup[val]; }
+function notEquals(p, t, key, val) { return p[key] !== val; }
+function notEqualsType(p, t, key, val) { return t !== typeLookup[val]; }
+function lesser(p, t, key, val) { return typeof p[key] === typeof val && p[key] < val; }
+function greater(p, t, key, val) { return typeof p[key] === typeof val && p[key] > val; }
+function lesserEqual(p, t, key, val) { return typeof p[key] === typeof val && p[key] <= val; }
+function greaterEqual(p, t, key, val) { return typeof p[key] === typeof val && p[key] >= val; }
+function truth() { return true; }