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Education/Learning/UnderstandingXpcomFiles (view source)
Revision as of 19:06, 16 March 2009
, 16 March 2009→nsILocalFile.idl vs. nsILocalFile.h
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The [http://hg.mozilla.org/mozilla-central/file/0cd41f599080/xpcom/io/nsILocalFile.idl nsILocalFile.idl] file defines the interface, but not in a way useful to the C++ compiler. In order to use it in C++, we need a proper header file. This is where the [https://developer.mozilla.org/en/XPIDL/xpidl xpidl] compiler comes in. One of the [https://developer.mozilla.org/index.php?title=En/How_Mozilla%27s_build_system_works jobs of the build system] during the export phase is to create .h files from .idl. | The [http://hg.mozilla.org/mozilla-central/file/0cd41f599080/xpcom/io/nsILocalFile.idl nsILocalFile.idl] file defines the interface, but not in a way useful to the C++ compiler. In order to use it in C++, we need a proper header file. This is where the [https://developer.mozilla.org/en/XPIDL/xpidl xpidl] compiler comes in. One of the [https://developer.mozilla.org/index.php?title=En/How_Mozilla%27s_build_system_works jobs of the build system] during the export phase is to create .h files from .idl. | ||
Since the build system generates nsILocalFile.h at compile time, you won't find it in the source tree, nor indexed in [http://mxr.mozilla.org MXR]. For discussion purposes, here it is: [[Education/Learning/UnderstandingXpcomFiles/nsILocalFile.h]]. | Since the build system generates nsILocalFile.h at compile time, you won't find it in the source tree, nor indexed in [http://mxr.mozilla.org MXR]. For discussion purposes, here it is: [[Education/Learning/UnderstandingXpcomFiles/nsILocalFile.h nsILocalFile.h]]. | ||
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