[strong] Disallow implicit conversions for bitwise ops, shifts

src/runtime.js

Index: src/runtime.js
diff --git a/src/runtime.js b/src/runtime.js
index a4677da316d1cb28a3c96ce730e0fb1cc5926573..9bb02aecb711ab6fbb932075a187905f9b72731f 100644
--- a/src/runtime.js
+++ b/src/runtime.js
@@ -272,6 +272,15 @@ function BIT_OR(y) {
 }
 
 
+//ECMA-262, section 11.10, page 57.
+function BIT_OR_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberOr(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
+
 // ECMA-262, section 11.10, page 57.
 function BIT_AND(y) {
   var x;
@@ -294,6 +303,15 @@ function BIT_AND(y) {
 }
 
 
+//ECMA-262, section 11.10, page 57.
+function BIT_AND_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberAnd(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
+
 // ECMA-262, section 11.10, page 57.
 function BIT_XOR(y) {
   var x = IS_NUMBER(this) ? this : %NonNumberToNumber(this);
@@ -302,6 +320,15 @@ function BIT_XOR(y) {
 }
 
 
+//ECMA-262, section 11.10, page 57.
+function BIT_XOR_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberXor(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
+
 // ECMA-262, section 11.7.1, page 51.
 function SHL(y) {
   var x = IS_NUMBER(this) ? this : %NonNumberToNumber(this);
@@ -310,6 +337,15 @@ function SHL(y) {
 }
 
 
+//ECMA-262, section 11.7.1, page 51.
+function SHL_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberShl(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
+
 // ECMA-262, section 11.7.2, page 51.
 function SAR(y) {
   var x;
@@ -332,6 +368,15 @@ function SAR(y) {
 }
 
 
+//ECMA-262, section 11.7.2, page 51.
+function SAR_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberSar(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
+
 // ECMA-262, section 11.7.3, page 52.
 function SHR(y) {
   var x = IS_NUMBER(this) ? this : %NonNumberToNumber(this);
@@ -340,6 +385,14 @@ function SHR(y) {
 }
 
 
+//ECMA-262, section 11.7.3, page 52.
+function SHR_STRONG(y) {
+  if (IS_NUMBER(this) && IS_NUMBER(y)) {
+    return %NumberShr(this, y);
+  }
+  throw %MakeTypeError('strong_implicit_cast');
+}
+
 
 /* -----------------------------
    - - -   H e l p e r s   - - -