bug#44568: [PATCH] Fix font lock of assignments with type hints in Python

[Dario Gjorgjevski]

The font lock of assignments with type hints in Python is rather bad.
Consider the following example:

    from typing import Mapping, Tuple, Sequence
    var1: int = 5
    var2: Mapping[int, int] = {10: 1024}
    var3: Mapping[Tuple[int, int], int] = {(2, 5): 32}
    var4: Sequence[Sequence[int]] = [[1], [1, 2], [1, 2, 3]]
    var5: Sequence[Mapping[str, Sequence[str]]] = [
        {
            'red': ['scarlet', 'vermilion', 'ruby'],
            'green': ['emerald', 'aqua']
        },
        {
            'sword': ['cutlass', 'rapier']
        }
    ]

As things stand right now, only ‘var1’ would be highlighted.  To make
things worse, the ‘Mapping’ type hint of ‘var2’ would also be
highlighted, which is entirely incorrect.

The attached patch makes all of ‘var1’ through ‘var5’ be highlighted
correctly.

0001-Fix-font-lock-of-assignments-with-type-hints-in-Pyth.patch
Description: Fix font lock of assignments with type hints in Python

Best regards,
Dario

-- 
dario.gjorgjevski@gmail.com :: +49 1525 8666837
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