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Java > Open Source Codes > org > jruby > internal > runtime > methods > CompiledMethod


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28 package org.jruby.internal.runtime.methods;
29
30 import org.jruby.Ruby;
31 import org.jruby.RubyModule;
32 import org.jruby.lexer.yacc.ISourcePosition;
33 import org.jruby.runtime.Arity;
34 import org.jruby.runtime.ThreadContext;
35 import org.jruby.runtime.Visibility;
36 import org.jruby.runtime.builtin.IRubyObject;
37 import org.jruby.exceptions.RaiseException;
38 import org.jruby.exceptions.JumpException;
39 import org.jruby.exceptions.ThreadKill;
40 import org.jruby.exceptions.MainExitException;
41 import org.jruby.runtime.Block;
42 import org.jruby.util.collections.SinglyLinkedList;
43
44 public abstract class CompiledMethod extends DynamicMethod implements Cloneable JavaDoc{
45     private Arity arity;
46     private SinglyLinkedList cref;
47     
48     public CompiledMethod(RubyModule implementationClass, Arity arity, Visibility visibility, SinglyLinkedList cref) {
49         super(implementationClass, visibility);
50         this.arity = arity;
51         this.cref = cref;
52     }
53
54     public void preMethod(ThreadContext context, RubyModule clazz,
55             IRubyObject self, String JavaDoc name, IRubyObject[] args, boolean noSuper) {
56         // needed for const lookups to work
57 context.preCompiledMethod(implementationClass, cref);
58     }
59     
60     public void postMethod(ThreadContext context) {
61         context.postCompiledMethod();
62     }
63     
64     public IRubyObject internalCall(ThreadContext context, RubyModule clazz, IRubyObject self, String JavaDoc name, IRubyObject[] args, boolean noSuper, Block block) {
65         assert false;
66         return null;
67     }
68     
69     private IRubyObject wrap(ThreadContext context, Ruby runtime, IRubyObject self, IRubyObject[] args, Block block) {
70         try {
71             return call(context, self, args, block);
72         } catch(RaiseException e) {
73             throw e;
74         } catch(JumpException e) {
75             throw e;
76         } catch(ThreadKill e) {
77             throw e;
78         } catch(MainExitException e) {
79             throw e;
80         } catch(Exception JavaDoc e) {
81             runtime.getJavaSupport().handleNativeException(e);
82             return runtime.getNil();
83         }
84     }
85
86     public IRubyObject call(ThreadContext context, IRubyObject self, RubyModule klazz, String JavaDoc name, IRubyObject[] args, boolean noSuper, Block block) {
87         Ruby runtime = context.getRuntime();
88         arity.checkArity(runtime, args);
89
90         if(runtime.getTraceFunction() != null) {
91             ISourcePosition position = context.getPosition();
92
93             runtime.callTraceFunction(context, "c-call", position, self, name, getImplementationClass());
94             try {
95                 return wrap(context, runtime, self, args, block);
96             } finally {
97                 runtime.callTraceFunction(context, "c-return", position, self, name, getImplementationClass());
98             }
99         }
100         return wrap(context, runtime, self, args, block);
101     }
102
103     public abstract IRubyObject call(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block);
104     
105     public DynamicMethod dup() {
106         try {
107             CompiledMethod msm = (CompiledMethod)clone();
108             return msm;
109         } catch (CloneNotSupportedException JavaDoc cnse) {
110         return null;
111     }
112     }
113
114     public Arity getArity() {
115         return arity;
116     }
117 }// SimpleInvocationMethod
118
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