trim down public api

[org.ibex.core.git] / src / org / ibex / js / JS.java

diff --git a/src/org/ibex/js/JS.java b/src/org/ibex/js/JS.java
index 65ba3f6..cd63638 100644 (file)
--- a/src/org/ibex/js/JS.java
+++ b/src/org/ibex/js/JS.java
@@ -7,9 +7,6 @@ import java.util.*;
 
 /** The minimum set of functionality required for objects which are manipulated by JavaScript */
 public abstract class JS { 
-
-    public static boolean checkAssertions = false;
-
     public static final JS METHOD = new JS() { };
     public final JS unclone() { return _unclone(); }
     public final JS jsclone() throws JSExn { return new Clone(this); }
@@ -34,15 +31,19 @@ public abstract class JS {
     
     public final boolean equals(Object o) { return this == o || ((o instanceof JS) && jsequals((JS)o)); }
     
-    // FIXME: Remove this, eventually
-    public final String toString() { throw new Error("you shouldn't use toString() on JS objects"); }
+    public final String toString() {
+        // Discourage people from using toString()
+        String s = "JS Object [class=" + getClass().getName() + "]";
+        String ext = extendedToString();
+        return ext == null ? s : s + " " + ext;
+    }
     
     // These are only used internally by org.ibex.js
     Trap getTrap(JS key) { return null; }
     void putTrap(JS key, Trap value) throws JSExn { throw new JSExn("traps cannot be placed on this object (class=" + this.getClass().getName() +")"); }
     String coerceToString() throws JSExn { throw new JSExn("can't coerce to a string (class=" + getClass().getName() +")"); }
-    String debugToString() { return "[class=" + getClass().getName() + "]"; }
     boolean jsequals(JS o) { return this == o; }
+    String extendedToString() { return null; }
     
     public static class O extends JS implements Cloneable {
         private Hash entries;
@@ -183,7 +184,7 @@ public abstract class JS {
     public static boolean toBoolean(JS o) {
         if(o == null) return false;
         if(o instanceof JSNumber) return ((JSNumber)o).toBoolean();
-        if(o instanceof JSString) return ((JSString)o).length() != 0;
+        if(o instanceof JSString) return ((JSString)o).s.length() != 0;
         return true;
     }
     //#repeat long/int/double/float toLong/toInt/toDouble/toFloat Long/Integer/Double/Float parseLong/parseInt/parseDouble/parseFloat
@@ -203,7 +204,7 @@ public abstract class JS {
     
     public static String debugToString(JS o) {
         try { return toString(o); }
-        catch(JSExn e) { return o.debugToString(); }
+        catch(JSExn e) { return o.toString(); }
     }
     
     public static boolean isInt(JS o) {
@@ -227,12 +228,16 @@ public abstract class JS {
         if(o instanceof JSString) return true;
         return false;
     }
+    
+    public static JS newArray() { return new JSArray(); }
+    public static JS newRegexp(JS pat, JS flags) throws JSExn { return new JSRegexp(pat,flags); }
 
     // Instance Methods ////////////////////////////////////////////////////////////////////
  
     public final static JS NaN = new JSNumber.D(Double.NaN);
     public final static JS ZERO = new JSNumber.I(0);
     public final static JS ONE = new JSNumber.I(1);
+    public final static JS MATH = new JSMath();
         
     public static final JS T = new JSNumber.B(true);
     public static final JS F = new JSNumber.B(false);
@@ -242,13 +247,14 @@ public abstract class JS {
     
     private static final int CACHE_SIZE = 65536 / 4; // must be a power of two
     private static final JSString[] stringCache = new JSString[CACHE_SIZE];
-    public static final JS S(String s)  {
+    public static final JS S(String s) {
         if(s == null) return null;
         int slot = s.hashCode()&(CACHE_SIZE-1);
         JSString ret = stringCache[slot];
         if(ret == null || !ret.s.equals(s)) stringCache[slot] = ret = new JSString(s);
         return ret;
     }
+    public static final JS S(String s, boolean intern) { return intern ? JSString.intern(s) : S(s); }
 
     public static final JS N(double d) { return new JSNumber.D(d); }
     public static final JS N(long l) { return new JSNumber.L(l); }