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Allow exceptions to NoAssignmentInExpressions. #535

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merged 1 commit into from
May 28, 2023

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This is mostly intended to carve out a really useful exception for testing: XCTAssertNoThrow(x = try ...) is quite a bit clearer about intent than x = try XCTUnwrap(try? ...) if you need the value x later in the test.

In an effort to not be too specific in this rule, I've opted to make this a configurable list of exceptions that by default contains XCTAssertNoThrow. So it only handles function calls right now, but this could be made more flexible in the future.

This is mostly intended to carve out a really useful exception for
testing: `XCTAssertNoThrow(x = try ...)` is quite a bit clearer about
intent than `x = try XCTUnwrap(try? ...)` if you need the value `x`
later in the test.

In an effort to not be *too* specific in this rule, I've opted to
make this a configurable list of exceptions that by default contains
`XCTAssertNoThrow`. So it only handles function calls right now, but
this could be made more flexible in the future.
@allevato
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cc @dylansturg

@allevato allevato merged commit 3852bac into swiftlang:main May 28, 2023
@allevato allevato deleted the xctnothrow-assignment-fixes branch May 28, 2023 16:00
allevato added a commit to allevato/swift-format that referenced this pull request Jun 29, 2023
…fixes

Allow exceptions to `NoAssignmentInExpressions`.
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