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

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

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

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

org.apache.derby.iapi.services.compiler.MethodBuilder.cast()
Cast the top stack value. Correctly down-casts a reference or casts a primitive type (e.g. int to short).
```
 Stack ...,value => ...,cast_value 
```
@param className type (primitive, interface or class) to cast to.


        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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            userExprFun.dup();       // instance (current row)
            userExprFun.push(i + 1); // arg1


            rc.generateExpression(ecb, userExprFun);
            userExprFun.cast(ClassName.DataValueDescriptor);
                
            userExprFun.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        }


    /* generates:

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            userExprFun.dup();       // instance (current row)
            userExprFun.push(i + 1); // arg1


            rc.generateExpression(ecb, userExprFun);
            userExprFun.cast(ClassName.DataValueDescriptor);
                
            userExprFun.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        }


    /* generates:

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            userExprFun.getField(field); // instance
            userExprFun.push(i + 1); // arg1


            rc.generateExpression(ecb, userExprFun);
            userExprFun.cast(ClassName.DataValueDescriptor);
                
            userExprFun.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        }


    /* generates:

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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        cb.getField(field); // instance
        cb.push(index + 1); // first arg;


        rc.generateExpression(acb, cb);
        cb.cast(ClassName.DataValueDescriptor); // second arg
        cb.callMethod(VMOpcode.INVOKEINTERFACE, ClassName.Row, "setColumn", "void", 2);
        continue;
      }


      userExprFun.getField(field); // instance

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