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Lifetime dependencies#2750

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jckarter wants to merge 70 commits intoswiftlang:mainswiftlang/swift-evolution:mainfrom jckarter:tbkka-lifetime-dependencyjckarter/swift-evolution:tbkka-lifetime-dependencyCopy head branch name to clipboard

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Commits on Jan 25, 2024

• First full draft.

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• Whitespace cleanup

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• Fix formatting

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Commits on Jan 26, 2024

• Future direction: Lifetime dependencies between arguments

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Commits on Feb 6, 2024

• Link to pitch thread

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Commits on Feb 7, 2024

• New examples for Future Directions

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• Match the implementation: Use local parameter names for argument references

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Commits on Feb 8, 2024

• Clarify some Alternatives and Future Directions

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Commits on Feb 12, 2024

• methods are mutating, not inout

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Commits on Feb 22, 2024

• Expand alternative syntaxes

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Commits on Mar 21, 2024

• Overhaul to adopt the new @dependsOn() syntax

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• Corrections from meg-gupta

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Commits on Mar 22, 2024

• Overhaul semantics discussion

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Commits on Mar 26, 2024

• Use "nonescapable" for the concept, rather than ~Escapable

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• Use "copied lifetime dependency" more consistently

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Commits on Apr 12, 2024

• s/@dependsOn/dependsOn/ to match implementation

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Commits on May 3, 2024

• Changed StorageView and BufferReference to Span to match the sibling proposal.

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Commits on May 7, 2024

• Merge pull request #1 from atrick/rename-span

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Commits on May 14, 2024

• Add a link to the forum discussion.

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Commits on May 28, 2024

• Additions to Proposed solutions

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• Dependency semantics by example

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• Cleanup Future directions

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• Additions to Future directions

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• Grammar updates

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• Merge pull request #2 from atrick/update

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Commits on May 29, 2024

• Update and cleanup the grammar.

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Commits on May 31, 2024

• Merge pull request #3 from atrick/lifetime-dependency

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Commits on Jun 7, 2024

• Add a change log entry.

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• Syntax update: dependsOn(self).

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• Remove Future Direction: only limited to results

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• Fix OwnedSpan ~Escapable typo.

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• Tweak wording in the ref1.drop example.

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Commits on Jun 11, 2024

• New section: Immortal requirements.

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• New alternatives considered: Initializer syntax.

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• Update Future component syntax.

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• New alternative considered: dependsOn(unchecked)

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• Remove redundant future direction: containers and their elements

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• Move "Parameter index" section to Alternatives considered.

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• Typo in example from "Depending on an escapable"

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Commits on Jun 12, 2024

• Rename Array to ContiguousArray.

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• New example: Escapable properties in a nonescapable type

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• Changelog entries

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• Merge pull request swiftlang#4 from atrick/lifetime-dependency

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Commits on Jun 14, 2024

• Fix a grammar typo.

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• Fix a typo in the dependent parameters example.

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• Typo: fix two more cases of Array -> ContiguousArray renaming.

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Commits on Jun 17, 2024

• Merge pull request swiftlang#5 from atrick/lifetime-dependency

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Commits on Jun 20, 2024

• Update the free-standing function inference rules.

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Commits on Jun 21, 2024

• Merge pull request swiftlang#6 from atrick/lifetime-dependency

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• Added future directions: Function type syntax and closures

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Commits on Jun 25, 2024

• Merge pull request swiftlang#7 from atrick/lifetime-dependency

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Commits on Jul 10, 2024

• Add an alternative spelling: lifetime vs. dependsOn.

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Commits on Jul 11, 2024

• Merge pull request swiftlang#8 from atrick/lifetime-dependency

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Commits on Jul 31, 2024

• Remove the Alternative: Initializer syntax: result vs. inout syntax

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Commits on Aug 13, 2024

• Add Alternative: @Lifetime annotation and where clause.

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• Simplified implicit lifetime dependencies

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• Merge pull request swiftlang#9 from atrick/lifetime-dependency

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Commits on Aug 16, 2024

• Fix inference rules to be sequenced.

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• In the lifetime annotation example, add an argument label.

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• Merge pull request swiftlang#10 from atrick/lifetime-dependency

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Commits on Aug 19, 2024

• Update Future Direction: Lifetime dependence for closures

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Commits on Aug 23, 2024

• Merge pull request swiftlang#11 from atrick/lifetime-dependency

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Commits on Mar 20, 2025

• Merge branch 'main' into tbkka-lifetime-dependency

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Commits on Mar 22, 2025

• Update proposal to match the state as of March 2025

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Commits on Mar 24, 2025

• Fix typos

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Commits on Mar 26, 2025

• More revisions from feedback

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• Apply suggestions from code review

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• More clarifications

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• use official names for parameter name and argument label

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Commits on Apr 1, 2025

• Adjust _overrideLifetime docs to match current stdlib implementation

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