In C++, new methods are formatted using the VA Snippet for Extract Method. Code extracted from an inline declaration in a header file is extracted to the header file unless you request the extracted method be placed in the appropriate source file.
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In C++, code in a source file is extracted to the same source file. Because the definition is moved to the extracted method, non-extracted references to the variable in the original code will result in compile errors. Use care when including definitions of local variables in code to be extracted. If you do not like the signature of a new method, cancel the dialog, rearrange or modify your selection, and try again. strWndText will become local to the new method.īecause str is not used in the left side of an expression within the new method, it is passed by value. If you select all of the example lines and run Extract Method, only str appears in the parameter list of the new method. In the following example, strWndText is defined and referenced only within these statements.
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In C++, if you are extracting a method from code within a class, you have the option of creating a free function instead of creating another method in the class.Īfter the extract, your function is created above the existing method or function. The new function is placed in the source before the original, and the extracted expression is replaced with a call to the function.Īfter Extract Method, use Create Declaration on the new function if you need to declare it in a header file. In the following example, Extract Method will replace an expression with another free function.Įnter the name of the new function in the dialog. In C/C++, if your selection is part of an existing free function, Visual Assist will insert a function prototype–or the extracted function itself–above the call site. If "Extract to Source" was checked, the header file is updated only with a declaration.Īnd, the implementation is placed in a source file. If "Extract to Source" was left unchecked, the new method is added to the appropriate header file, where it can remain or can be moved subsequently with Move Implementation to Source File. Visual Assist also determines the return type, in this case a double.Īfter accepting the name and signature, the extracted code is replaced with a call to the new method. In the example, the new method will not have parameters because PI and m_radius are accessible within the Cylinder class. Visual Assist infers the method signature from the surrounding context and the block to be extracted. When the dialog opens, enter the name for your new method. Place the caret on a block of code-multiple lines or a portion of one-and select Extract Method via the Quick Action and Refactoring menu (Shift+Alt+Q), or via the context menu of the text editor. Extract Method creates a new method from a block of code, and changes the original code to invoke the new method. Refactor with Extract Method when common blocks of code appear in multiple places, or when an existing method would be easier to understand if divided into pieces. Highlight References to Symbol Under Cursor.Move Method Implementations to Source File.Access to Refactoring and Code Generation.
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