runtime: more...

Signed-off-by: Sora Morimoto <[email protected]>

Author: smorimoto

biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/1.9.1/schema.json",
+  "$schema": "https://biomejs.dev/schemas/1.9.2/schema.json",
   "files": {
     "include": ["runtime"],
     "ignore": ["runtime/zstd.ts"]
@@ -9,7 +9,20 @@
     "useEditorconfig": true
   },
   "linter": {
-    "enabled": false
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "style": {
+        "noParameterAssign": "off"
+      },
+      "suspicious": {
+        "noFallthroughSwitchClause": "off",
+        "noRedeclare": "off",
+        "noAssignInExpressions": "off",
+        "noSelfCompare": "off",
+        "useDefaultSwitchClauseLast": "off"
+      }
+    }
   },
   "organizeImports": {
     "enabled": true

runtime/compare.js

@@ -18,31 +18,23 @@
 //Provides: caml_compare_val_tag
 //Requires: caml_is_ml_string, caml_is_ml_bytes
 function caml_compare_val_tag(a) {
-  if (typeof a === "number")
-    return 1000; // int_tag (we use it for all numbers)
-  else if (caml_is_ml_bytes(a))
-    return 252; // string_tag
-  else if (caml_is_ml_string(a))
-    return 1252; // ocaml string (if different from bytes)
-  else if (Array.isArray(a) && a[0] === a[0] >>> 0 && a[0] <= 255) {
+  if (typeof a === "number") return 1000;
+  if (caml_is_ml_bytes(a)) return 252;
+  if (caml_is_ml_string(a)) return 1252;
+  if (Array.isArray(a) && a[0] === a[0] >>> 0 && a[0] <= 255) {
     // Look like an ocaml block
     const tag = a[0] | 0;
     // ignore double_array_tag because we cannot accurately set
     // this tag when we create an array of float.
     return tag === 254 ? 0 : tag;
-  } else if (a instanceof String)
-    return 12520; // javascript string, like string_tag (252)
-  else if (typeof a === "string")
-    return 12520; // javascript string, like string_tag (252)
-  else if (a instanceof Number)
-    return 1000; // int_tag (we use it for all numbers)
-  else if (a && a.caml_custom)
-    return 1255; // like custom_tag (255)
-  else if (a && a.compare)
-    return 1256; // like custom_tag (255)
-  else if (typeof a === "function")
-    return 1247; // like closure_tag (247)
-  else if (typeof a === "symbol") return 1251;
+  }
+  if (a instanceof String) return 12520;
+  if (typeof a === "string") return 12520;
+  if (a instanceof Number) return 1000;
+  if (a?.caml_custom) return 1255;
+  if (a?.compare) return 1256;
+  if (typeof a === "function") return 1247;
+  if (typeof a === "symbol") return 1251;
   return 1001; //out_of_heap_tag
 }
 
@@ -214,6 +206,7 @@ function caml_compare_val(a, b, total) {
           // Exception: `!=` will not coerce/convert if both a and b are objects
           if (a < b) return -1;
           if (a > b) return 1;
+          // biome-ignore lint/suspicious/noDoubleEquals: type-coercive comparison
           if (a != b) {
             if (!total) return Number.NaN;
             if (a === a) return 1;
@@ -246,8 +239,6 @@ function caml_compare_val(a, b, total) {
           }
           break;
         }
-        case 246: // Lazy_tag
-        case 254: // Double_array
         default: // Block with other tag
           if (caml_is_continuation_tag(tag_a)) {
             caml_invalid_argument("compare: continuation value");

runtime/dynlink.js

@@ -50,7 +50,7 @@ function caml_dynlink_lookup_symbol(idx, fun_name) {
   const name = caml_jsstring_of_string(fun_name);
   console.log("Dynlink: looking for symbol", name);
   const current_libs = get_current_libs();
-  if (current_libs[idx] && current_libs[idx][name])
+  if (current_libs[idx]?.[name])
     return { name: name, symbol: current_libs[idx][name] };
   return 0;
 }

runtime/format.js

@@ -60,18 +60,19 @@ function caml_parse_format(fmt) {
       case "6":
       case "7":
       case "8":
-      case "9":
+      case "9": {
         f.width = 0;
-        while (((c = fmt.charCodeAt(i) - 48), c >= 0 && c <= 9)) {
+        while ((c = fmt.charCodeAt(i) - 48) && c >= 0 && c <= 9) {
           f.width = f.width * 10 + c;
           i++;
         }
         i--;
         break;
+      }
       case ".":
         f.prec = 0;
         i++;
-        while (((c = fmt.charCodeAt(i) - 48), c >= 0 && c <= 9)) {
+        while ((c = fmt.charCodeAt(i) - 48) && c >= 0 && c <= 9) {
           f.prec = f.prec * 10 + c;
           i++;
         }

runtime/fs.js

@@ -79,7 +79,8 @@ function make_path_is_absolute() {
     globalThis.process.platform
   ) {
     return globalThis.process.platform === "win32" ? win32 : posix;
-  } else return posix;
+  }
+  return posix;
 }
 const path_is_absolute = make_path_is_absolute();
 
@@ -162,7 +163,7 @@ function resolve_fs_device(name) {
   }
   if (!res && fs_node_supported()) {
     const root = caml_get_root(name_);
-    if (root && root.match(/^[a-zA-Z]:\/$/)) {
+    if (root?.match(/^[a-zA-Z]:\/$/)) {
       const m = { path: root, device: new MlNodeDevice(root) };
       jsoo_mount_point.push(m);
       res = {
@@ -212,9 +213,8 @@ function caml_sys_chdir(dir) {
       caml_current_dir = caml_trailing_slash(root.path + root.rest);
     else caml_current_dir = root.path;
     return 0;
-  } else {
-    caml_raise_no_such_file(caml_jsbytes_of_string(dir));
   }
+  caml_raise_no_such_file(caml_jsbytes_of_string(dir));
 }
 
 //Provides: caml_raise_no_such_file

runtime/fs_fake.js

@@ -68,9 +68,8 @@ MlFakeDevice.prototype.exists = function (name) {
 MlFakeDevice.prototype.isFile = function (name) {
   if (this.exists(name) && !this.is_dir(name)) {
     return 1;
-  } else {
-    return 0;
   }
+  return 0;
 };
 MlFakeDevice.prototype.mkdir = function (name, mode, raise_unix) {
   const unix_error = raise_unix && caml_named_value("Unix.Unix_error");
@@ -85,7 +84,7 @@ MlFakeDevice.prototype.mkdir = function (name, mode, raise_unix) {
     }
   }
   let parent = /^(.*)\/[^/]+/.exec(name);
-  parent = (parent && parent[1]) || "";
+  parent = parent?.[1] || "";
   if (!this.exists(parent)) {
     if (unix_error) {
       caml_raise_with_args(

runtime/fs_node.js

@@ -303,7 +303,7 @@ MlNodeFd.prototype.read = function (offset, a, buf_offset, len) {
   try {
     if (this.flags.isCharacterDevice)
       return this.fs.readSync(this.fd, a, buf_offset, len);
-    else return this.fs.readSync(this.fd, a, buf_offset, len, offset);
+    return this.fs.readSync(this.fd, a, buf_offset, len, offset);
   } catch (err) {
     caml_raise_sys_error(err.toString());
   }

runtime/hash.js

@@ -72,7 +72,7 @@ function caml_hash_univ_param(count, limit, obj) {
       count--;
       const p = caml_int64_to_bytes(caml_int64_bits_of_float(obj));
       for (let i = 7; i >= 0; i--) hash_accu = (hash_accu * 19 + p[i]) | 0;
-    } else if (obj && obj.caml_custom) {
+    } else if (obj?.caml_custom) {
       if (
         caml_custom_ops[obj.caml_custom] &&
         caml_custom_ops[obj.caml_custom].hash
@@ -184,7 +184,7 @@ function caml_hash_mix_bytes_arr(h, s) {
 function caml_hash_mix_bytes(h, v) {
   const content = caml_ml_bytes_content(v);
   if (typeof content === "string") return caml_hash_mix_jsbytes(h, content);
-  /* ARRAY */ else return caml_hash_mix_bytes_arr(h, content);
+  /* ARRAY */ return caml_hash_mix_bytes_arr(h, content);
 }
 
 //Provides: caml_hash_mix_string
@@ -218,7 +218,7 @@ function caml_hash(count, limit, seed, obj) {
   wr = 1;
   while (rd < wr && num > 0) {
     v = queue[rd++];
-    if (v && v.caml_custom) {
+    if (v?.caml_custom) {
       if (
         caml_custom_ops[v.caml_custom] &&
         caml_custom_ops[v.caml_custom].hash

runtime/ieee_754.js

@@ -43,7 +43,7 @@ function caml_int64_bits_of_float(x) {
   if (!Number.isFinite(x)) {
     if (Number.isNaN(x)) return caml_int64_create_lo_mi_hi(1, 0, 0x7ff0);
     if (x > 0) return caml_int64_create_lo_mi_hi(0, 0, 0x7ff0);
-    else return caml_int64_create_lo_mi_hi(0, 0, 0xfff0);
+    return caml_int64_create_lo_mi_hi(0, 0, 0xfff0);
   }
   const sign =
     x === 0 && 1 / x === Number.NEGATIVE_INFINITY
@@ -159,7 +159,7 @@ function caml_int64_float_of_bits(x) {
   if (exp === 2047) {
     if ((lo | mi | (hi & 0xf)) === 0)
       return hi & 0x8000 ? Number.NEGATIVE_INFINITY : Number.POSITIVE_INFINITY;
-    else return Number.NaN;
+    return Number.NaN;
   }
   const k = 2 ** -24;
   let res = (lo * k + mi) * k + (hi & 0xf);
@@ -178,7 +178,7 @@ function caml_nextafter_float(x, y) {
   if (x === y) return y;
   if (x === 0) {
     if (y < 0) return -(2 ** -1074);
-    else return 2 ** -1074;
+    return 2 ** -1074;
   }
   let bits = caml_int64_bits_of_float(x);
   const one = caml_int64_of_int32(1);
@@ -340,10 +340,9 @@ function caml_round_float(x) {
   if (x >= 0) {
     const y = Math.floor(x);
     return x - y >= 0.5 ? y + 1 : y;
-  } else {
-    const y = Math.ceil(x);
-    return y - x >= 0.5 ? y - 1 : y;
   }
+  const y = Math.ceil(x);
+  return y - x >= 0.5 ? y - 1 : y;
 }
 //Provides: caml_cbrt_float const
 function caml_cbrt_float(x) {
@@ -496,18 +495,18 @@ function caml_format_float(fmt, x) {
   function toFixed(x, dp) {
     if (Math.abs(x) < 1.0) {
       return x.toFixed(dp);
-    } else {
-      let e = Number.parseInt(x.toString().split("+")[1]);
-      if (e > 20) {
-        e -= 20;
-        x /= 10 ** e;
-        x += new Array(e + 1).join("0");
-        if (dp > 0) {
-          x = `${x}.${new Array(dp + 1).join("0")}`;
-        }
-        return x;
-      } else return x.toFixed(dp);
     }
+    let e = Number.parseInt(x.toString().split("+")[1]);
+    if (e > 20) {
+      e -= 20;
+      x /= 10 ** e;
+      x += new Array(e + 1).join("0");
+      if (dp > 0) {
+        x = `${x}.${new Array(dp + 1).join("0")}`;
+      }
+      return x;
+    }
+    return x.toFixed(dp);
   }
   let s;
   const f = caml_parse_format(fmt);
@@ -550,19 +549,18 @@ function caml_format_float(fmt, x) {
           if (s.charAt(i - 3) === "e")
             s = `${s.slice(0, i - 1)}0${s.slice(i - 1)}`;
           break;
-        } else {
-          let p = prec;
-          if (exp < 0) {
-            p -= exp + 1;
-            s = x.toFixed(p);
-          } else while (((s = x.toFixed(p)), s.length > prec + 1)) p--;
-          if (p) {
-            // remove trailing zeroes
-            let i = s.length - 1;
-            while (s.charAt(i) === "0") i--;
-            if (s.charAt(i) === ".") i--;
-            s = s.slice(0, i + 1);
-          }
+        }
+        let p = prec;
+        if (exp < 0) {
+          p -= exp + 1;
+          s = x.toFixed(p);
+        } else while ((s = x.toFixed(p)) && s.length > prec + 1) p--;
+        if (p) {
+          // remove trailing zeroes
+          let i = s.length - 1;
+          while (s.charAt(i) === "0") i--;
+          if (s.charAt(i) === ".") i--;
+          s = s.slice(0, i + 1);
         }
         break;
       }

runtime/internalMod.js

@@ -61,14 +61,7 @@ function caml_CamlinternalMod_init_mod(loc, shape) {
 //If: !effects
 //Version: < 4.13
 function caml_CamlinternalMod_update_mod(shape, real, x) {
-  if (typeof shape === "number")
-    switch (shape) {
-      case 0: //function
-      case 1: //lazy
-      case 2: //class
-      default:
-        caml_update_dummy(real, x);
-    }
+  if (typeof shape === "number") caml_update_dummy(real, x);
   else
     switch (shape[0]) {
       case 0: //module
@@ -126,14 +119,7 @@ function caml_CamlinternalMod_init_mod(loc, shape, cont) {
 //Version: < 4.13
 function caml_CamlinternalMod_update_mod(shape, real, x, cont) {
   function loop(shape, real, x) {
-    if (typeof shape === "number")
-      switch (shape) {
-        case 0: //function
-        case 1: //lazy
-        case 2: //class
-        default:
-          caml_update_dummy(real, x);
-      }
+    if (typeof shape === "number") caml_update_dummy(real, x);
     else
       switch (shape[0]) {
         case 0: //module