Examples of org.apache.derby.iapi.services.compiler.MethodBuilder.methodReturn()

Package org.apache.derby.iapi.services.compiler

Class org.apache.derby.iapi.services.compiler.MethodBuilder

Examples of org.apache.derby.iapi.services.compiler.MethodBuilder.methodReturn()

org.apache.derby.iapi.services.compiler.MethodBuilder.methodReturn()
Return from a method, optionally with a value. Must only be called if zero or one item exists on the stack. If the stack contains a single value then that is popped and used as the returned value.
```
 Stack value => :empty: or Stack :empty: => :empty: 
```
.

    else
    {
      leftOperand.generateExpression(acb, qualMethod);
    }


    qualMethod.methodReturn();
    qualMethod.complete();


    /* push an expression that evaluates to the GeneratedMethod */
    acb.pushMethodReference(mb, qualMethod);
  }

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        // Generate the complete ResultSet tree for this statement.
        // This step may add statements into the execute method
        // for per-execution actions.
        generate(generatingClass, mbWorker);
        mbWorker.methodReturn();
        mbWorker.complete();


       // wrap up the activation class definition
    // generate on the tree gave us back the newExpr
    // for getting a result set on the tree.

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      /* Generate the code to get the primitive value */
      mb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.DataValueDescriptor,
                value.getTypeCompiler().getPrimitiveMethodName(), primitiveTN, 0);


      mb.methodReturn();
      mb.complete();


      /* Generate the call to the new method, with the parameter */


      mbex.pushThis();

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        // Add a method that indicates the maxium number of dynamic result sets.
        int maxDynamicResults = routineInfo.getMaxDynamicResultSets();
        if (maxDynamicResults > 0) {
          MethodBuilder gdr = acb.getClassBuilder().newMethodBuilder(Modifier.PUBLIC, "int", "getMaxDynamicResults");
          gdr.push(maxDynamicResults);
          gdr.methodReturn();
          gdr.complete();
        }


        // add a method to return all the dynamic result sets (unordered)
        MethodBuilder gdr = acb.getClassBuilder().newMethodBuilder(Modifier.PUBLIC, "java.sql.ResultSet[][]", "getDynamicResults");

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    mb.putField(field);


    /* Stuff the full expression into a return statement and add that to the
     * body of the new method.
     */
    mb.methodReturn();


    // complete the method
    mb.complete();


    /* Generate the call to the new method */

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  {
    // create a constructor that just calls super.  
    MethodBuilder realConstructor =
      cb.newConstructorBuilder(Modifier.PUBLIC);
    realConstructor.callSuper();
    realConstructor.methodReturn();
    realConstructor.complete();


    constructor = cb.newMethodBuilder(Modifier.PUBLIC, "void", "postConstructor");
    constructor.addThrownException(ClassName.StandardException);
  }

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        */
        if(mb.statementNumHitLimit(10))
        {
          MethodBuilder dmb = acb.newGeneratedFun(ClassName.ResultSet, Modifier.PRIVATE);
          dependentNodes[index].generate(acb,dmb); //generates the resultset expression
          dmb.methodReturn();
          dmb.complete();
          /* Generate the call to the new method */
          mb.pushThis(); 
          //second arg will be generated by this call
          mb.callMethod(VMOpcode.INVOKEVIRTUAL, (String) null, dmb.getName(), ClassName.ResultSet, 0);

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    // be executed directly as e0.
    MethodBuilder userExprFun = acb.newGeneratedFun("void", Modifier.PUBLIC);
    userExprFun.addThrownException("java.lang.Exception");
    methodCallBody.generate(acb, userExprFun);
    userExprFun.endStatement();
    userExprFun.methodReturn();
    userExprFun.complete();


    acb.pushGetResultSetFactoryExpression(mb);
    acb.pushMethodReference(mb, userExprFun); // first arg
    acb.pushThisAsActivation(mb); // arg 2

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     *    return <checkExpress.generate(ecb)>;
     * and adds it to userExprFun
     */


    checkConstraints.generateExpression(ecb, userExprFun);
    userExprFun.methodReturn();
    
    // we are done modifying userExprFun, complete it.
    userExprFun.complete();


    return userExprFun;

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    /* generates:
     *    return;
     * And adds it to userExprFun
     */
    userExprFun.methodReturn();
    
    // we are done modifying userExprFun, complete it.
    userExprFun.complete();


    return userExprFun;

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