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.noalias annotation; frontend support (#15419)

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* .noalias annotation; frontend support

* added .noalias support to Nim; implements https://github.com/nim-lang/RFCs/issues/204
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Andreas Rumpf 2020-09-28 13:51:39 +02:00 • committed by GitHub
commit 50b6f6996a
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11 changed files with 53 additions and 12 deletions
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compiler/ast.nim
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@ -229,7 +229,7 @@ type
TNodeKinds* = set[TNodeKind]
type
TSymFlag* = enum # 43 flags!
TSymFlag* = enum # 46 flags!
sfUsed, # read access of sym (for warnings) or simply used
sfExported, # symbol is exported from module
sfFromGeneric, # symbol is instantiation of a generic; this is needed
@ -293,7 +293,8 @@ type
sfNeverRaises # proc can never raise an exception, not even OverflowDefect
# or out-of-memory
sfUsedInFinallyOrExcept # symbol is used inside an 'except' or 'finally'
sfSingleUsedTemp # For temporaries that we know will only be used once
sfSingleUsedTemp # For temporaries that we know will only be used once
sfNoalias # 'noalias' annotation, means C's 'restrict'
TSymFlags* = set[TSymFlag]