Use the application's classloader for the Packages object if available.

Merged in changes from FESI 1.1.5

src/FESI/Interpreter/Evaluator.java

@@ -33,6 +33,8 @@ import java.util.StringTokenizer;
 import java.io.*;
 import java.util.zip.*;
 
+import helma.scripting.fesi.FesiEngine;
+
 /**
  * Defines the evaluation interface and contains the evaluation context.
  * <P><B>Important:</B> This object is also used as the synchronization
@@ -41,11 +43,11 @@ import java.util.zip.*;
  * for speed reasons.
  */
 public class Evaluator {
-
+  
   // used to stop thread, 06.12.99 Hannes Wallnoefer
   public volatile Thread thread;
   // used to retrieve wrappers with correct Prototype for path elements in ESLoader
-  public helma.scripting.fesi.FesiEngine engine;
+  public final FesiEngine engine;
 
   private static String eol = System.getProperty("line.separator", "\n");
 
@@ -53,7 +55,7 @@ public class Evaluator {
    * Return the version identifier of the interpreter
    */
   public static String getVersion() {
-      return "1.1.4 (30-Jan-2000)";
+      return "1.1.5 (29-July-2000)";
   }
     
   /**
@@ -104,16 +106,25 @@ public class Evaluator {
        varDeclarationVisitor =  new EcmaScriptVariableVisitor(this);
        // evaluationVisitor = new EcmaScriptEvaluateVisitor(this);
        globalObject = GlobalObject.makeGlobalObject(this);
-       packageObject = new ESPackages(this);
+       packageObject = engine == null ? 
-       
+           new ESPackages(this) : 
+           new ESPackages(this, engine.getClassLoader ());
        extensions = new Hashtable(); // forget extensions
-       
   }
-  
+
   /**
    * Create a new empty evaluator
    */
   public Evaluator () {
+      this.engine = null;
+      reset();
+  }
+
+  /**
+   * Create a new empty evaluator
+   */
+  public Evaluator (FesiEngine engine) {
+      this.engine = engine;
       reset();
   }
   
@@ -283,6 +294,7 @@ public class Evaluator {
     */
     public void setDatePrototype(ESObject o) {
         datePrototype = o;
+
     }
     /**
      * Get the Date prototype object
@@ -300,7 +312,6 @@ public class Evaluator {
         return packageObject;
     }
 
-
    //------------------------------------------------------------
    // Extension support
    //------------------------------------------------------------
@@ -503,11 +514,16 @@ public class Evaluator {
    */
    public ESValue evaluateEvalString(String theSource) throws EcmaScriptException {
      ESValue theValue = ESUndefined.theUndefined;
+    ASTProgram programNode = null;
+    StringEvaluationSource es = new StringEvaluationSource(theSource, null);
+    	// Hack - this ensures correct parsing of // comments
+    	// even if no EOL is present (as in an eval('1//a'))
+    	if (!theSource.endsWith("\n")) {
+    		theSource += "\n";
+    	}
     java.io.StringReader is = 
             new java.io.StringReader(theSource);
     EcmaScript parser = new EcmaScript(is);
-    ASTProgram programNode = null;
-    StringEvaluationSource es = new StringEvaluationSource(theSource, null);
     try {
         // ASTProgram n = parser.Program();
         programNode = (ASTProgram)parser.Program();
@@ -760,7 +776,6 @@ public class Evaluator {
    // currentEvaluationSource = es; 
     try {
         for (Enumeration e = localVariableNames.elements() ; e.hasMoreElements() ;) {
-
              String variable =(String)(e.nextElement()); 
              createVariable(variable, variable.hashCode());
          }    
@@ -836,6 +851,8 @@ public class Evaluator {
     EcmaScriptEvaluateVisitor evaluationVisitor = new EcmaScriptEvaluateVisitor(this);
     try {   
 
+       // Hannes Wallnoefer, 2002/11/29: Pass thisObject to EcmaScriptFunctionVisitor so that 
+       // functions are assigned to the prototype instead of the global object
        functionDeclarationVisitor.processFunctionDeclarations(node, program.getEvaluationSource(), thisObject);
        Vector variables = program.getVariableNames();
        for (Enumeration e = variables.elements() ; e.hasMoreElements() ;) {
@@ -973,6 +990,11 @@ public class Evaluator {
     ESValue v = null;
     EvaluationSource es = new UserEvaluationSource(source, null);
     try {
+    	// Hack - this ensures correct parsing of // comments
+    	// even if no EOL is present (as in an eveal command)/
+    	if (!text.endsWith("\n")) {
+    		text += "\n";
+    	}
        is = new java.io.StringReader(text);
        v = evaluate(is, globalObject, es, false);
     } finally {
@@ -1004,7 +1026,6 @@ public class Evaluator {
   synchronized public ESValue evaluate(File file, ESObject thisObject) 
               throws EcmaScriptException, IOException {
     EvaluationSource es = new FileEvaluationSource(file.getPath(), null);
-
     FileReader fr = null;
     ESValue value = null;
     try {
@@ -1050,6 +1071,11 @@ public class Evaluator {
     java.io.StringReader is = null;
     ESValue v = null;
     EvaluationSource es = new StringEvaluationSource(theSource, null);
+    	// Hack - this ensures correct parsing of // comments
+    	// even if no EOL is present (as in an eveal command)/
+    	if (!theSource.endsWith("\n")) {
+    		theSource += "\n";
+    	}
     try {
        is = new java.io.StringReader(theSource);
        v = evaluate(is, thisObject, es, returnAccepted);