| Summary: | lambda expressions don't get correct type | ||
|---|---|---|---|
| Product: | [Developer tools] kdev-python | Reporter: | Nicolás Alvarez <nalvarez> |
| Component: | Language support | Assignee: | Sven Brauch <mail> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version First Reported In: | git master | ||
| Target Milestone: | --- | ||
| Platform: | unspecified | ||
| OS: | Linux | ||
| Latest Commit: | https://commits.kde.org/kdev-python/a16e2de3f089fa5f13046fad4ea934d33e9bd128 | Version Fixed In: | 5.1.0 |
| Sentry Crash Report: | |||
There is no difference if the lambda has parameters. Git commit a16e2de3f089fa5f13046fad4ea934d33e9bd128 by Francis Herne.
Committed on 27/12/2016 at 20:53.
Pushed by flherne into branch '5.1'.
Lambda expression improvements.
Lambda expressions were given the type of their return expression, e.g.
`lambda x: 12` has type "int".
That caused calling them to get no or an incorrect return type:
`a = (lambda x: 12)("arg")` # a should be int, but is mixed.
They should have a function type instead.
`*args` or `**kwargs` arguments to a lambda were shown as undefined in
the return expression:
`lambda *args, **kwargs: args[1] + kwargs["foo"]`
Fixes one test.
Differential Revision: https://phabricator.kde.org/D3555
M +6 -0 duchain/declarationbuilder.cpp
M +12 -0 duchain/expressionvisitor.cpp
M +1 -0 duchain/expressionvisitor.h
M +0 -1 duchain/tests/pyduchaintest.cpp
https://commits.kde.org/kdev-python/a16e2de3f089fa5f13046fad4ea934d33e9bd128
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Given: f = lambda: 4.5 a = f() KDev-Python says 'f' is of type 'float', rather than type 'float function()'. This means that 'a' is then of undefined type ('mixed') when it should be 'float'.