When trying to include nsTextEditorState.h in a file which does not include (directly or indirectly nsString.h), compilation fails:
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:269:13: error: ‘nsCString’ was not declared in this scope
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:269:22: error: template argument 1 is invalid
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:271:11: error: ‘nsString’ does not name a type
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h: In member function ‘void nsTextEditorState::EmptyValue()’:
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:163:41: error: base operand of ‘->’ is not a pointer
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h: In member function ‘PRBool nsTextEditorState::IsEmpty() const’:
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:164:50: error: base operand of ‘->’ is not a pointer
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h: In member function ‘void nsTextEditorState::ClearValueCache()’:
/home/arno/mozilla/content/html/content/src/nsTextEditorState.h:213:28: error: ‘mCachedValue’ was not declared in this scope
Created attachment 551043 [details] [diff] [review]
A good practice that helps avoid problems of this sort is to make each class-specific .h file the first #include in its .cpp file. In other words, if nsTextEditorState.h were the first #include in nsTextEditorState.cpp, this wouldn't have happened.
Created attachment 551105 [details] [diff] [review]
updated patch: make nsTextEditorState.h first include of nsTextEditorState.cpp
Landed the patch on mozilla-inbound. Thanks for writing the patch!