Bump styler from 1.4.2 to 1.6.0

[dependabot]

Bumps styler from 1.4.2 to 1.6.0.

Release notes

Sourced from styler's releases.

v1.6.0: ExUnit assertions edition

That's right, a feature release again so soon!

Improvements

This version of Styler adds many readability improvements around ExUnit assert and refute, specifically when working with 1. negations or 2. some Enum stdlib functions.

Some of these rewrites are not semantically equivalent; for example, refute is_nil(false) will be rewritten to assert false, which will fail.

ExUnit assert/refute rewrites

Styler now inverts negated (!, not) assert/refute (eg assert !x => refute x) statements, and further inverts refute with boolean comparison operators (refute x < y => assert x >= y) because non-trivial refutes are harder to reason about [ citation needed ]. Asserting something is not nil is the same as just asserting that something, so that's gone too now.

These changes are best summarized by the following table:

before	styled
assert !x	refute x
assert not x	refute x
assert !!x	assert x
assert x != nil	assert x
assert x == nil	no change
assert is_nil(x)	no change
assert !is_nil(x)	assert x
assert x not in y	refute x in y
refute negated
refute x	no change
refute !x	assert x
refute not x	assert x
refute x != y	assert x == y
refute x !== y	assert x === y
refute x != nil	assert x == nil
refute x not in y	assert x in y
refute comparison
refute x < y	assert x >= y
refute x <= y	assert x > y
refute x > y	assert x <= y
refute x >= y	assert x < y

• assert Enum.member?(y, x) -> assert x in y
• assert Enum.find(x, y) -> assert Enum.any?(x, y) (nb. not semantically equivalent in theory, but equivalent in practice)
• assert Enum.any?(y, & &1 == x) -> assert x in y
• assert Enum.any?(y, fn var -> var == x end) -> assert x in y

Fixes

• alias lifting: fix bug lifting in snippets with a single ast node at the root level (like a credo config file) (#240, h/t @​defndaines)

v1.5.1

Fixes

... (truncated)

Changelog

Sourced from styler's changelog.

1.6.0

That's right, a feature release again so soon!

Improvements

This version of Styler adds many readability improvements around ExUnit assert and refute, specifically when working with 1. negations or 2. some Enum stdlib functions.

Some of these rewrites are not semantically equivalent due to refute passing for both nil and false.

ExUnit assert/refute rewrites

Styler now inverts negated (!, not) assert/refute (eg assert !x => refute x) statements, and further inverts refute with boolean comparison operators (refute x < y => assert x >= y) because non-trivial refutes are harder to reason about [ citation needed ]. Asserting something is not nil is the same as just asserting that something, so that's gone too now.

These changes are best summarized by the following table:

before	styled
assert !x	refute x
assert not x	refute x
assert !!x	assert x
assert x != nil	assert x
assert x == nil	no change
assert is_nil(x)	no change
assert !is_nil(x)	assert x
assert x not in y	refute x in y
refute negated
refute x	no change
refute !x	assert x
refute not x	assert x
refute x != y	assert x == y
refute x !== y	assert x === y
refute x != nil	assert x == nil
refute x not in y	assert x in y
refute comparison
refute x < y	assert x >= y
refute x <= y	assert x > y
refute x > y	assert x <= y
refute x >= y	assert x < y

• assert Enum.member?(y, x) -> assert x in y
• assert Enum.find(x, y) -> assert Enum.any?(x, y) (nb. not semantically equivalent in theory, but equivalent in practice)
• assert Enum.any?(y, & &1 == x) -> assert x in y
• assert Enum.any?(y, fn var -> var == x end) -> assert x in y

Fixes

• alias lifting: fix bug lifting in snippets with a single ast node at the root level (like a credo config file) (#240, h/t @​defndaines)

1.5.1

... (truncated)

Commits

• 4d6fca6 v1.6.0
• 0ffe339 fix link in docs
• 4d8e05b assert Enum.foo rewrites, and tweaks to the negated rewrites
• d8ea620 rewrite negated assert/refute
• 51d1cc7 fix: alias lifting snippets with non-block root. closes #240
• e7a3b81 v1.5.1
• af740c3 clean up comment - that "bug" isnt a bug
• 5a01051 fix: comment mangling when lifting aliases in snippets. closes #239
• be66c30 fix a -> @ typo in module directive "interesting?" check
• 20954a4 ahem. nothing to see here.
• Additional commits viewable in compare view

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