Wrap runtime.js in a function.

src/math.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var rngstate;  // Initialized to a Uint32Array during genesis.
 
 var $abs;
 var $exp;
 var $floor;
 var $max;
@@ skipping 70 matching lines @@
     if (arg1 == arg2) {
       // Make sure -0 is considered less than +0.
       return (arg1 === 0 && %_IsMinusZero(arg1)) ? arg2 : arg1;
     }
     // All comparisons failed, one of the arguments must be NaN.
     return NAN;
   }
   var r = -INFINITY;
   for (var i = 0; i < length; i++) {
     var n = %_Arguments(i);
-    if (!IS_NUMBER(n)) n = NonNumberToNumber(n);
+    n = TO_NUMBER_INLINE(n);
     // Make sure +0 is considered greater than -0.
     if (NUMBER_IS_NAN(n) || n > r || (r === 0 && n === 0 && %_IsMinusZero(r))) {
       r = n;
     }
   }
   return r;
 }
 
 // ECMA 262 - 15.8.2.12
 function MathMin(arg1, arg2) {  // length == 2
   var length = %_ArgumentsLength();
   if (length == 2) {
     arg1 = TO_NUMBER_INLINE(arg1);
     arg2 = TO_NUMBER_INLINE(arg2);
     if (arg2 > arg1) return arg1;
     if (arg1 > arg2) return arg2;
     if (arg1 == arg2) {
       // Make sure -0 is considered less than +0.
       return (arg1 === 0 && %_IsMinusZero(arg1)) ? arg1 : arg2;
     }
     // All comparisons failed, one of the arguments must be NaN.
     return NAN;
   }
   var r = INFINITY;
   for (var i = 0; i < length; i++) {
     var n = %_Arguments(i);
-    if (!IS_NUMBER(n)) n = NonNumberToNumber(n);
+    n = TO_NUMBER_INLINE(n);
     // Make sure -0 is considered less than +0.
     if (NUMBER_IS_NAN(n) || n < r || (r === 0 && n === 0 && %_IsMinusZero(n))) {
       r = n;
     }
   }
   return r;
 }
 
 // ECMA 262 - 15.8.2.13
 function MathPowJS(x, y) {
@@ skipping 39 matching lines @@
 function MathTrunc(x) {
   x = +x;
   if (x > 0) return %_MathFloor(x);
   if (x < 0) return -%_MathFloor(-x);
   // -0, 0 or NaN.
   return x;
 }
 
 // ES6 draft 09-27-13, section 20.2.2.33.
 function MathTanh(x) {
-  if (!IS_NUMBER(x)) x = NonNumberToNumber(x);
+  x = TO_NUMBER_INLINE(x);
   // Idempotent for +/-0.
   if (x === 0) return x;
   // Returns +/-1 for +/-Infinity.
   if (!NUMBER_IS_FINITE(x)) return MathSign(x);
   var exp1 = MathExp(x);
   var exp2 = MathExp(-x);
   return (exp1 - exp2) / (exp1 + exp2);
 }
 
 // ES6 draft 09-27-13, section 20.2.2.5.
 function MathAsinh(x) {
-  if (!IS_NUMBER(x)) x = NonNumberToNumber(x);
+  x = TO_NUMBER_INLINE(x);
   // Idempotent for NaN, +/-0 and +/-Infinity.
   if (x === 0 || !NUMBER_IS_FINITE(x)) return x;
   if (x > 0) return MathLog(x + %_MathSqrt(x * x + 1));
   // This is to prevent numerical errors caused by large negative x.
   return -MathLog(-x + %_MathSqrt(x * x + 1));
 }
 
 // ES6 draft 09-27-13, section 20.2.2.3.
 function MathAcosh(x) {
-  if (!IS_NUMBER(x)) x = NonNumberToNumber(x);
+  x = TO_NUMBER_INLINE(x);
   if (x < 1) return NAN;
   // Idempotent for NaN and +Infinity.
   if (!NUMBER_IS_FINITE(x)) return x;
   return MathLog(x + %_MathSqrt(x + 1) * %_MathSqrt(x - 1));
 }
 
 // ES6 draft 09-27-13, section 20.2.2.7.
 function MathAtanh(x) {
-  if (!IS_NUMBER(x)) x = NonNumberToNumber(x);
+  x = TO_NUMBER_INLINE(x);
   // Idempotent for +/-0.
   if (x === 0) return x;
   // Returns NaN for NaN and +/- Infinity.
   if (!NUMBER_IS_FINITE(x)) return NAN;
   return 0.5 * MathLog((1 + x) / (1 - x));
 }
 
 // ES6 draft 09-27-13, section 20.2.2.17.
 function MathHypot(x, y) {  // Function length is 2.
   // We may want to introduce fast paths for two arguments and when
   // normalization to avoid overflow is not necessary.  For now, we
   // simply assume the general case.
   var length = %_ArgumentsLength();
   var args = new InternalArray(length);
   var max = 0;
   for (var i = 0; i < length; i++) {
     var n = %_Arguments(i);
-    if (!IS_NUMBER(n)) n = NonNumberToNumber(n);
+    n = TO_NUMBER_INLINE(n);
     if (n === INFINITY || n === -INFINITY) return INFINITY;
     n = MathAbs(n);
     if (n > max) max = n;
     args[i] = n;
   }
 
   // Kahan summation to avoid rounding errors.
   // Normalize the numbers to the largest one to avoid overflow.
   if (max === 0) max = 1;
   var sum = 0;
@@ skipping 16 matching lines @@
 // ES6 draft 07-18-14, section 20.2.2.11
 function MathClz32JS(x) {
   return %_MathClz32(x >>> 0);
 }
 
 // ES6 draft 09-27-13, section 20.2.2.9.
 // Cube root approximation, refer to: http://metamerist.com/cbrt/cbrt.htm
 // Using initial approximation adapted from Kahan's cbrt and 4 iterations
 // of Newton's method.
 function MathCbrt(x) {
-  if (!IS_NUMBER(x)) x = NonNumberToNumber(x);
+  x = TO_NUMBER_INLINE(x);
   if (x == 0 || !NUMBER_IS_FINITE(x)) return x;
   return x >= 0 ? CubeRoot(x) : -CubeRoot(-x);
 }
 
 macro NEWTON_ITERATION_CBRT(x, approx)
   (1.0 / 3.0) * (x / (approx * approx) + 2 * approx);
 endmacro
 
 function CubeRoot(x) {
   var approx_hi = MathFloorJS(%_DoubleHi(x) / 3) + 0x2A9F7893;
@@ skipping 79 matching lines @@
 %SetInlineBuiltinFlag(MathTrunc);
 
 // Expose to the global scope.
 $abs = MathAbs;
 $exp = MathExp;
 $floor = MathFloorJS;
 $max = MathMax;
 $min = MathMin;
 
 })();