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src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/FunctionScope.java

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  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.runtime;
  27 
  28 /**
  29  * This is the base class for function scopes.  Subclasses of this class are
  30  * produced by the ObjectClassGenerator along with additional fields for storing
  31  * local vars.  The number of fields required is determined by ObjectCreator.
  32  *
  33  * The scope is also responsible for handling the var arg 'arguments' object,
  34  * though most of the access is via generated code.
  35  *
  36  * The constructor of this class is responsible for any function prologue
  37  * involving the scope.
  38  *
  39  * TODO see NASHORN-715.
  40  */
  41 public class FunctionScope extends ScriptObject implements Scope {
  42 
  43     /** Area to store scope arguments. (public for access from scripts.) */
  44     public final ScriptObject arguments;
  45 
  46     /** Flag to indicate that a split method issued a return statement */
  47     private int splitState = -1;
  48 
  49     /**
  50      * Constructor
  51      *
  52      * @param map         property map
  53      * @param callerScope caller scope
  54      * @param arguments   arguments
  55      */
  56     public FunctionScope(final PropertyMap map, final ScriptObject callerScope, final ScriptObject arguments) {
  57         super(callerScope, map);
  58         this.arguments = arguments;
  59         setIsScope();
  60     }
  61 
  62     /**
  63      * Constructor
  64      *
  65      * @param map         property map
  66      * @param callerScope caller scope
  67      */
  68     public FunctionScope(final PropertyMap map, final ScriptObject callerScope) {
  69         super(callerScope, map);
  70         this.arguments = null;
  71         setIsScope();
  72     }
  73 
  74     /**
  75      * Constructor
  76      *
  77      * @param map            property map
  78      * @param primitiveSpill primitive spill pool
  79      * @param objectSpill    reference spill pool
  80      */
  81     public FunctionScope(final PropertyMap map, final long[] primitiveSpill, final Object[] objectSpill) {
  82         super(map, primitiveSpill, objectSpill);
  83         this.arguments = null;
  84     }
  85 
  86 
  87     /**
  88      * Get the current split state.
  89      * @return current split state
  90      */
  91     @Override
  92     public int getSplitState() {
  93         return splitState;
  94     }
  95 
  96     /**
  97      * Set the current split state.
  98      * @param state current split state
  99      */
 100     @Override
 101     public void setSplitState(final int state) {
 102         splitState = state;
 103     }
 104 }


  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.internal.runtime;
  27 
  28 /**
  29  * This is the base class for function scopes.  Subclasses of this class are
  30  * produced by the ObjectClassGenerator along with additional fields for storing
  31  * local vars.  The number of fields required is determined by ObjectCreator.
  32  *
  33  * The scope is also responsible for handling the var arg 'arguments' object,
  34  * though most of the access is via generated code.
  35  *
  36  * The constructor of this class is responsible for any function prologue
  37  * involving the scope.


  38  */
  39 public class FunctionScope extends Scope {
  40 
  41     /** Area to store scope arguments. (public for access from scripts.) */
  42     public final ScriptObject arguments;
  43 



  44     /**
  45      * Constructor
  46      *
  47      * @param map         property map
  48      * @param callerScope caller scope
  49      * @param arguments   arguments
  50      */
  51     public FunctionScope(final PropertyMap map, final ScriptObject callerScope, final ScriptObject arguments) {
  52         super(callerScope, map);
  53         this.arguments = arguments;

  54     }
  55 
  56     /**
  57      * Constructor
  58      *
  59      * @param map         property map
  60      * @param callerScope caller scope
  61      */
  62     public FunctionScope(final PropertyMap map, final ScriptObject callerScope) {
  63         super(callerScope, map);
  64         this.arguments = null;

  65     }
  66 
  67     /**
  68      * Constructor
  69      *
  70      * @param map            property map
  71      * @param primitiveSpill primitive spill pool
  72      * @param objectSpill    reference spill pool
  73      */
  74     public FunctionScope(final PropertyMap map, final long[] primitiveSpill, final Object[] objectSpill) {
  75         super(map, primitiveSpill, objectSpill);
  76         this.arguments = null;



















  77     }
  78 }
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