d9d82fb0af
See the section `do notation` in the manual for more info. * nkMacroStmt has been removed Macro statements are now mapped to regular nkCall nodes. The support for additional clauses (such as else, except, of, etc) have been restored - they will now appear as additional arguments for the nkCall node (as nkElse, nkExcept, etc nodes) * fixed some regressions in the `is` operator and semCompiles
31 lines
802 B
Nim
Executable file
31 lines
802 B
Nim
Executable file
discard """
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output: "Got: 'nnkCall' hi"
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"""
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import
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macros, strutils
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macro outterMacro*(n: stmt): stmt {.immediate.} =
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let n = callsite()
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var j : string = "hi"
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proc innerProc(i: int): string =
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echo "Using arg ! " & n.repr
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result = "Got: '" & $n.kind & "' " & $j
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var callNode = n[0]
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expectKind(n, TNimrodNodeKind.nnkCall)
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if n.len != 3 or n[1].kind != TNimrodNodeKind.nnkIdent:
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error("Macro " & callNode.repr &
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" requires the ident passed as parameter (eg: " & callNode.repr &
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"(the_name_you_want)): statements.")
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result = newNimNode(TNimrodNodeKind.nnkStmtList)
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var ass : PNimrodNode = newNimNode(nnkAsgn)
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ass.add(newIdentNode(n[1].ident))
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ass.add(newStrLitNode(innerProc(4)))
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result.add(ass)
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var str: string
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outterMacro(str):
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"hellow"
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echo str
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