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enable,document,test getImplTransformed, very useful for understanding how nim transforms code (#14924)

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* enable,document,test getImplTransformed, very useful for understanding how nim transforms code
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Timothee Cour 2020-07-18 01:49:36 -07:00 • committed by GitHub
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7
lib/core/macros.nim
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@ -277,9 +277,12 @@ else: # bootstrapping substitute
{.pop.}
when defined(nimSymImplTransform):
when (NimMajor, NimMinor, NimPatch) >= (1, 3, 5) or defined(nimSymImplTransform):
proc getImplTransformed*(symbol: NimNode): NimNode {.magic: "GetImplTransf", noSideEffect.}
## For a typed proc returns the AST after transformation pass.
## For a typed proc returns the AST after transformation pass; this is useful
## for debugging how the compiler transforms code (eg: `defer`, `for`) but
## note that code transformations are implementation dependent and subject to change.
## See an example in `tests/macros/tmacros_various.nim`.
when defined(nimHasSymOwnerInMacro):
proc owner*(sym: NimNode): NimNode {.magic: "SymOwner", noSideEffect.}