use if else instead of switch

Author: aquapi

src/jit.ts

@@ -13,17 +13,21 @@ export const router_compile_to_code = (
 
   if (matchAllIdx !== -1) linear_map_swap(router, matchAllIdx, trees.length - 1);
 
-  let str = `switch(${methodId}){`;
+  let str = '';
   for (
-    let i = 0, methods = router[0], treesLen = trees.length - (matchAllIdx !== -1 ? 1 : 0);
+    let i = 0,
+      methods = router[0],
+      treesLen = trees.length - (matchAllIdx !== -1 ? 1 : 0),
+      prefix = `if(${methodId}===`;
     i < treesLen;
     i++
-  )
+  ) {
     str +=
-      `case${JSON.stringify(methods[i])}:` +
-      tree_compile_to_code(trees[i], resultId, pathId) +
-      'break;';
-  str += '}';
+      prefix +
+      JSON.stringify(methods[i]) +
+      `){${tree_compile_to_code(trees[i], resultId, pathId)}}`;
+    if (i === 0) prefix = 'else ' + prefix;
+  }
 
   return matchAllIdx !== -1
     ? str + tree_compile_to_code(trees[trees.length - 1], resultId, pathId)

src/tree/jit.ts

@@ -10,11 +10,11 @@ export const tree_compile_to_code = (
     keys = tree[0],
     values = tree[1];
 
-  if (keys.length > 0) {
-    str = `switch(${pathId}){`;
-    for (let i = 0; i < keys.length; i++) str += `case${JSON.stringify(keys[i])}:{${values[i]}}`;
-    str += '}';
-  }
+  if (keys.length > 0)
+    for (let i = 0, prefix = `if(${pathId}===`; i < keys.length; i++) {
+      str += prefix + JSON.stringify(keys[i]) + `){${values[i]}}`;
+      if (i === 0) prefix = 'else ' + prefix;
+    }
 
   if (tree[2] !== null) {
     // console.log(JSON.stringify(tree[2]!, null, 2));