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Add bare readonly type for inherently immutable basic types #462

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jclark opened this issue Mar 25, 2020 · 0 comments
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Add bare readonly type for inherently immutable basic types #462

jclark opened this issue Mar 25, 2020 · 0 comments
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Area/Lang Relates to the Ballerina language specification Type/Improvement Enhancement to language design
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Swan Lake preview 1

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jclark commented Mar 25, 2020 •
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This is an initial part of #189.

Syntactically allow type descriptor of readonly (with no type parameter) with semantics that it allows any value of a basic type that is inherently readonly i.e.

  • simple types
  • string
  • error
  • function
  • service
  • handle
  • typedesc

This is a prerequisite of #463. Next step is #465.
@jclark jclark added Type/Improvement Enhancement to language design Area/Lang Relates to the Ballerina language specification labels Mar 25, 2020
@jclark jclark added this to the 2020R2 milestone Mar 25, 2020
@jclark jclark self-assigned this Mar 25, 2020
@jclark jclark mentioned this issue Mar 25, 2020
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@jclark jclark changed the title Add bare readonly type Add bare readonly type for inherently immutable basic types Mar 25, 2020
@jclark jclark mentioned this issue Mar 26, 2020
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jclark added a commit that referenced this issue Mar 26, 2020
@jclark
Say that handles are immutable
17c0ee5 
Part of #462.
@jclark jclark closed this as completed in 90310dc Mar 26, 2020
@MaryamZi MaryamZi mentioned this issue Apr 2, 2020
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@jclark jclark modified the milestones: 2020R3, 2020R2 Apr 24, 2020
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