Review Request 118700: Special handling of the QML "parent" identifier

[Denis Steckelmacher]

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https://git.reviewboard.kde.org/r/118700/
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(Updated June 13, 2014, 10:13 a.m.)


Review request for KDevelop.


Changes
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Make guessLanguageFromSuffix a public static member of ParseSession so that ExpressionVisitor can use it to infer the language of a file from its extension. This way, ParseSession and ExpressionVisitor will always agree on the language of a file.


Repository: kdev-qmljs


Description
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This patch adds a special-case for "parent" in ExpressionVisitor. Even if every QML object has a "parent" property of type QQuickItem, the user most of the time wants to refer to the enclosing QML component when he/she types "parent". If there is no enclosing QML component (the current component is a top-level one or something else happened), then ExpressionVisitor falls back to the old behavior and returns a QQuickItem instance.

I would like to be able to activate this special handling of "parent" only for QML files, because Javascript files may use "parent" for something else. Is it possible, given a DUContext, to find its language? (or is there a way for the QML/JS plugin to store in the DUContext that the file is a Javascript one or a QML one?)


Diffs (updated)
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  codecompletion/tests/qmlcompletiontest.cpp 1b5cdee 
  duchain/expressionvisitor.cpp 6545997 
  duchain/parsesession.h b5d51d3 
  duchain/parsesession.cpp 1231a40 
  tests/files/test.qml 2d3dc7d 

Diff: https://git.reviewboard.kde.org/r/118700/diff/


Testing
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A new unit test has been added. "parent" is used to refer to the enclosing component of a sub-component, and uses are correctly built. The rest of the unit tests pass. Manual testing shows that the highlighting of "parent" and the code-completion for "parent." is as expected.


Thanks,

Denis Steckelmacher

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