This helps to lower impedance in the using code.
Even though TemporaryDirectory will very likely always stay on the local
host, this is one of the entry points into path related string
manipulation
that we want to base on FilePath nowadays.
Change-Id: I302016b8d65e54df94296659a54a93935d9e4627
Reviewed-by: David Schulz <david.schulz@qt.io>
...with an extra parse.
Previously, the creation of an e.g. "Qt Widgets Application" from the
wizard could show code model errors in mainwindow.cpp. Depending on
timing issues, the first error is either
1. 'ui_mainwindow.h' file not found (QTCREATORBUG-15187)
The parse happened before the in-memory ui_mainwindow.h was
generated by uic. The file system watcher can't help here as the
#include was not resolved successfully. And libclang's reparse does
not handle this case (it would need to remember all failed #include
stats...).
==> Detect this case with the help of the include paths and trigger
a full parse.
2. or: allocation of incomplete type... (QTCREATORBUG-15187)
The parse happened after the generation of the in-memory
ui_mainwindow.h, but before the clangbackend received the unsaved
file.
==> Fix this by also writing the content of the unsaved file to our
behind-the-scenes-created ui_mainwindow.h.
Fixes: QTCREATORBUG-15187
Fixes: QTCREATORBUG-17002
Change-Id: I4f3a81adaa3d604746977a402c29f83fbc5b0e44
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
Both wrap the corresponding Qt class, but make sure all temporary files
or directories are created inside a "master temporary directory".
Change-Id: I55461be507c828c965224c02863ea5ed9bbf9498
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Feeding libclang with unsaved files (e.g. in-memory generated ui_*.h)
that do not exist on disk leads to regeneration of the preamble on every
parse/reparse/completion and thus renders the clang code model useless.
We could check the existence in the file system for every unsaved file
just before every parse/reparse/completion. Obviously this does not
scale (e.g. qtcreator.pro generates about 200 unsaves files) and would
also slow down the responsiveness of the completion, especially for the
dot-to-arrow correction case.
We could also set up a file system watcher. However, implementing the
"file got created" case is not trivial because QFileSystemWatcher does
not support it out of the box.
Instead, set up a custom include directory and create empty files in it
that represent the unsaved files and pass that include directory to
libclang as the last one. While this fixes the performance problems, it
also comes with at least two problems:
* Because ui_*.h files are "relocated" to the same directory, two or
more "foo.ui" in the same session will be problematic.
* Because of the custom include directory, problems might arise for
projects that include the ui_*.h as "some/relative/path/ui_foo.h"
instead of "ui_foo.h". This should be the less common case.
Task-number: QTCREATORBUG-17245
Change-Id: I6e40e87c3ef095086eb22c972dd8c1a6459a8245
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
