package org.ibex.js;
/** Implementation of a JavaScript Scope */
-class JSScope extends JS.O {
+class JSScope {
private final int base;
private final JS[] vars;
this.vars = new JS[size];
}
+ final JS get(JS i) throws JSExn {
+ if(i==null) throw new NullPointerException();
+ try {
+ return get(Script.toInt(i));
+ } catch(ArrayIndexOutOfBoundsException e) {
+ throw new JSExn("scope index out of range");
+ }
+ }
+ final void put(JS i, JS o) throws JSExn {
+ if(i==null) throw new NullPointerException();
+ try {
+ put(Script.toInt(i), o);
+ } catch(ArrayIndexOutOfBoundsException e) {
+ throw new JSExn("scope index out of range");
+ }
+ }
JS get(int i) throws JSExn { return i < base ? parent.get(i) : vars[i-base]; }
void put(int i, JS o) throws JSExn { if(i < base) parent.put(i,o); else vars[i-base] = o; }
JS getGlobal() { return parent.getGlobal(); }
- private JSScope parentScope;
+ /*private JSScope parentScope;
private static final JS NULL_PLACEHOLDER = new JS() { };
- public JSScope(JSScope parentScope) { this(parentScope, 0, 0); }
+ public JSScope(JSScope parentScope) { this.parentScope = parentScope; }
public void declare(JS s) throws JSExn { super.put(s, NULL_PLACEHOLDER); }
public JSScope getParentScope() { return parentScope; }
public JS get(JS key) throws JSExn {
- if (key instanceof JSNumber) try {
- return get(JS.toInt(key));
- } catch(ArrayIndexOutOfBoundsException e) {
- throw new JSExn("scope index out of range");
- }
JS o = super.get(key);
if (o != null) return o == NULL_PLACEHOLDER ? null : o;
else return parentScope == null ? null : parentScope.get(key);
public boolean has(JS key) throws JSExn { return super.get(key) != null; }
public void put(JS key, JS val) throws JSExn {
- if (key instanceof JSNumber) try {
- put(JS.toInt(key),val);
- } catch(ArrayIndexOutOfBoundsException e) {
- throw new JSExn("scope index out of range");
- }
if (parentScope != null && !has(key)) parentScope.put(key, val);
else super.put(key, val == null ? NULL_PLACEHOLDER : val);
}
}
public static class Global extends JSScope {
- private final static JS NaN = JS.N(Double.NaN);
- private final static JS POSITIVE_INFINITY = JS.N(Double.POSITIVE_INFINITY);
+ private final static JS NaN = N(Double.NaN);
+ private final static JS POSITIVE_INFINITY = N(Double.POSITIVE_INFINITY);
public Global() { super(null); }
public Global(JSScope p) { super(p); }
// We'll have to do something better with this when Scope is rewritten
public JS get(JS key) throws JSExn {
JS ret = _get(key);
- if(ret == JS.METHOD) return new Interpreter.Stub(this,key);
+ if(ret == METHOD) return new Interpreter.Stub(this,key);
return ret;
}
public JS _get(JS key) throws JSExn {
- //#switch(JS.toString(key))
- case "JS.NaN": return JS.NaN;
+ #switch(JS.str(key))
+ case "NaN": return NaN;
case "Infinity": return POSITIVE_INFINITY;
case "undefined": return null;
- case "stringFromCharCode": return JS.METHOD;
- case "parseInt": return JS.METHOD;
- case "parseFloat": return JS.METHOD;
- case "isJS.NaN": return JS.METHOD;
- case "isFinite": return JS.METHOD;
- case "decodeURI": return JS.METHOD;
- case "decodeURIComponent": return JS.METHOD;
- case "encodeURI": return JS.METHOD;
- case "encodeURIComponent": return JS.METHOD;
- case "escape": return JS.METHOD;
- case "unescape": return JS.METHOD;
- default: return super.get(key);
- //#end
+ case "stringFromCharCode": return METHOD;
+ case "parseInt": return METHOD;
+ case "parseFloat": return METHOD;
+ case "isNaN": return METHOD;
+ case "isFinite": return METHOD;
+ case "decodeURI": return METHOD;
+ case "decodeURIComponent": return METHOD;
+ case "encodeURI": return METHOD;
+ case "encodeURIComponent": return METHOD;
+ case "escape": return METHOD;
+ case "unescape": return METHOD;
+ #end
return super.get(key);
}
public JS callMethod(JS method, JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
- //#switch(JS.toString(method))
+ #switch(JS.str(method))
case "parseInt": return parseInt(a0, N(0));
case "parseFloat": return parseFloat(a0);
- case "isJS.NaN": { double d = JS.toDouble(a0); return d == d ? JS.F : JS.T; }
- case "isFinite": { double d = JS.toDouble(a0); return (d == d && !Double.isInfinite(d)) ? JS.T : JS.F; }
+ case "isNaN": { double d = toDouble(a0); return d == d ? F : T; }
+ case "isFinite": { double d = toDouble(a0); return (d == d && !Double.isInfinite(d)) ? T : F; }
case "decodeURI": throw new JSExn("unimplemented");
case "decodeURIComponent": throw new JSExn("unimplemented");
case "encodeURI": throw new JSExn("unimplemented");
case "escape": throw new JSExn("unimplemented");
case "unescape": throw new JSExn("unimplemented");
case "parseInt": return parseInt(a0, a1);
- default: return super.callMethod(method, a0, a1, a2, rest, nargs);
- //#end
- return super.callMethod(method,a0,a1,a2,rest,nargs);
+ #end
+ return super.callMethod(method, a0, a1, a2, rest, nargs);
}
private JS parseInt(JS arg, JS r) throws JSExn {
int length = s.length();
int sign = 1;
long n = 0;
- if(radix != 0 && (radix < 2 || radix > 36)) return JS.NaN;
+ if(radix != 0 && (radix < 2 || radix > 36)) return NaN;
while(start < length && Character.isWhitespace(s.charAt(start))) start++;
if((length >= start+1) && (s.charAt(start) == '+' || s.charAt(start) == '-')) {
sign = s.charAt(start) == '+' ? 1 : -1;
}
}
if(radix == 0) radix = 10;
- if(length == start || Character.digit(s.charAt(start),radix) == -1) return JS.NaN;
+ if(length == start || Character.digit(s.charAt(start),radix) == -1) return NaN;
// try the fast way first
try {
String s2 = start == 0 ? s : s.substring(start);
int digit = Character.digit(s.charAt(i),radix);
if(digit < 0) break;
n = n*radix + digit;
- if(n < 0) return JS.NaN; // overflow;
+ if(n < 0) return NaN; // overflow;
}
if(n <= Integer.MAX_VALUE) return JS.N(sign*(int)n);
return JS.N((long)sign*n);
} catch(NumberFormatException e) { }
end--;
}
- return JS.NaN;
+ return NaN;
}
- }
+ }*/
}
projects / org.ibex.js.git / blobdiff