X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fxwt%2Fjs%2FJSFunction.java;h=8e5c92aee82c06fdc79b734cbfb5e93554468f7d;hb=6261c41b2ac9d182d8c3541e8e0e5fd00062fa43;hp=92e3efff0ecc01037e7874fc7d172278990cabc3;hpb=8c1756ef3fd42cc2f324baf47e13a83f51045efe;p=org.ibex.core.git
diff --git a/src/org/xwt/js/JSFunction.java b/src/org/xwt/js/JSFunction.java
index 92e3eff..8e5c92a 100644
--- a/src/org/xwt/js/JSFunction.java
+++ b/src/org/xwt/js/JSFunction.java
@@ -6,24 +6,50 @@ import java.util.*;
import java.io.*;
/** A JavaScript function, compiled into bytecode */
-public class JSFunction extends JSCallable implements ByteCodes, Tokens {
+public class JSFunction extends JS implements ByteCodes, Tokens, org.xwt.Scheduler.Task {
// Fields and Accessors ///////////////////////////////////////////////
int numFormalArgs = 0; ///< the number of formal arguments
+
String sourceName; ///< the source code file that this block was drawn from
- int[] line = new int[10]; ///< the line numbers
private int firstLine = -1; ///< the first line of this script
+
+ int[] line = new int[10]; ///< the line numbers
int[] op = new int[10]; ///< the instructions
Object[] arg = new Object[10]; ///< the arguments to the instructions
int size = 0; ///< the number of instruction/argument pairs
- JSScope parentJSScope; ///< the default scope to use as a parent scope when executing this
+ JSScope parentScope; ///< the default scope to use as a parent scope when executing this
- // Constructors ////////////////////////////////////////////////////////
- public JSFunction cloneWithNewParentJSScope(JSScope s) {
+ // Public //////////////////////////////////////////////////////////////////////////////
+
+ // FEATURE: make sure that this can only be called from the Scheduler...
+ /** if you enqueue a function, it gets invoked in its own pauseable context */
+ public void perform() throws JSExn {
+ Interpreter i = new Interpreter(this, true, new JSArray());
+ int oldpausecount = i.pausecount;
+ i.resume();
+ }
+
+ /** parse and compile a function */
+ public static JSFunction fromReader(String sourceName, int firstLine, Reader sourceCode) throws IOException {
+ JSFunction ret = new JSFunction(sourceName, firstLine, null);
+ if (sourceCode == null) return ret;
+ Parser p = new Parser(sourceCode, sourceName, firstLine);
+ while(true) {
+ int s = ret.size;
+ p.parseStatement(ret, null);
+ if (s == ret.size) break;
+ }
+ ret.add(-1, LITERAL, null);
+ ret.add(-1, RETURN);
+ return ret;
+ }
+
+ public JSFunction cloneWithNewParentScope(JSScope s) {
JSFunction ret = new JSFunction(sourceName, firstLine, s);
// Reuse the same op, arg, line, and size variables for the new "instance" of the function
// NOTE: Neither *this* function nor the new function should be modified after this call
@@ -35,40 +61,26 @@ public class JSFunction extends JSCallable implements ByteCodes, Tokens {
return ret;
}
- JSFunction(String sourceName, int firstLine, JSScope parentJSScope) {
- this.sourceName = sourceName;
- this.firstLine = firstLine;
- this.parentJSScope = parentJSScope;
- }
-
- protected JSFunction(String sourceName, int firstLine, Reader sourceCode, JSScope parentJSScope) throws IOException {
- this(sourceName, firstLine, parentJSScope);
- if (sourceCode == null) return;
- Parser p = new Parser(sourceCode, sourceName, firstLine);
- while(true) {
- int s = size;
- p.parseStatement(this, null);
- if (s == size) break;
- }
- add(-1, LITERAL, null);
- add(-1, RETURN);
- }
-
/** Note: code gets run in an unpauseable context. */
- public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) {
- JSContext cx = new JSContext(this, false);
+ public Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
JSArray args = new JSArray();
if (nargs > 0) args.addElement(a0);
if (nargs > 1) args.addElement(a1);
if (nargs > 2) args.addElement(a2);
for(int i=3; i