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Typed macro in pragma evaluation order differs between added via AST vs added by hand #18348

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alaviss opened this issue Jun 25, 2021 · 0 comments
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CPS bugs/pulls related to the cps project Macros

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@alaviss
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alaviss commented Jun 25, 2021

Example

import macros

macro foo(x: static[int], n: typed): untyped =
  result = n
  echo "foo on ", result.name, ", x: ", x

proc test() {.used, foo: 2, foo: 1.} =
  discard

macro addFoo(n: typed): untyped =
  result = copyNimTree n
  # This is the same order in the AST as the code above:
  result.addPragma:
    nnkExprColonExpr.newTree(bindSym"foo", newLit 2)
  result.addPragma:
    nnkExprColonExpr.newTree(bindSym"foo", newLit 1)
 
proc test2() {.used, addFoo.} =
  discard

Current Output

foo on test, x: 1
foo on test, x: 2
foo on test2, x: 2
foo on test2, x: 1

Expected Output

foo on test, x: 1
foo on test, x: 2
foo on test2, x: 1
foo on test2, x: 2

Additional Information

$ nim -v
Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2021-06-24
Copyright (c) 2006-2021 by Andreas Rumpf

git hash: 0f91b67f5c15328330f74a8769aed9961940aab2
active boot switches: -d:release -d:nimUseLinenoise
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Labels
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