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import
macros, algorithm, strutils
proc normalProc(x: int) =
echo x
template templateWithtouParams =
echo 10
proc overloadedProc(x: int) =
echo x
proc overloadedProc(x: string) =
echo x
proc overloadedProc[T](x: T) =
echo x
template normalTemplate(x: int) =
echo x
template overloadedTemplate(x: int) =
echo x
template overloadedTemplate(x: string) =
echo x
macro normalMacro(x: int): untyped =
discard
macro macroWithoutParams: untyped =
discard
macro inspectSymbol(sym: typed, expected: static[string]): untyped =
if sym.kind == nnkSym:
echo "Symbol node:"
let res = sym.getImpl.repr & "\n"
echo res
# echo "|", res, "|"
# echo "|", expected, "|"
if expected.len > 0: assert res == expected
elif sym.kind in {nnkClosedSymChoice, nnkOpenSymChoice}:
echo "Begin sym choice:"
var results = newSeq[string](0)
for innerSym in sym:
results.add innerSym.getImpl.repr
sort(results, cmp[string])
let res = results.join("\n") & "\n"
echo res
if expected.len > 0: assert res == expected
echo "End symchoice."
else:
echo "Non-symbol node: ", sym.kind
if expected.len > 0: assert $sym.kind == expected
macro inspectUntyped(sym: untyped, expected: static[string]): untyped =
let res = sym.repr
echo "Untyped node: ", res
assert res == expected
inspectSymbol templateWithtouParams, "nnkCommand"
# this template is expanded, because bindSym was not used
# the end result is the template body (nnkCommand)
inspectSymbol bindSym("templateWithtouParams"), """
template templateWithtouParams() =
echo 10
"""
inspectSymbol macroWithoutParams, "nnkEmpty"
# Just like the template above, the macro was expanded
inspectSymbol bindSym("macroWithoutParams"), """
macro macroWithoutParams(): untyped =
discard
"""
inspectSymbol normalMacro, """
macro normalMacro(x: int): untyped =
discard
"""
# Since the normalMacro has params, it's automatically
# treated as a symbol here (no need for `bindSym`)
inspectSymbol bindSym("normalMacro"), """
macro normalMacro(x: int): untyped =
discard
"""
inspectSymbol normalTemplate, """
template normalTemplate(x: int) =
echo x
"""
inspectSymbol bindSym("normalTemplate"), """
template normalTemplate(x: int) =
echo x
"""
inspectSymbol overloadedTemplate, """
template overloadedTemplate(x: int) =
echo x
template overloadedTemplate(x: string) =
echo x
"""
inspectSymbol bindSym("overloadedTemplate"), """
template overloadedTemplate(x: int) =
echo x
template overloadedTemplate(x: string) =
echo x
"""
inspectUntyped bindSym("overloadedTemplate"), """bindSym("overloadedTemplate")"""
# binSym is active only in the presence of `typed` params.
# `untyped` params still get the raw AST
inspectSymbol normalProc, """
proc normalProc(x: int) =
echo [x]
"""
inspectSymbol bindSym("normalProc"), """
proc normalProc(x: int) =
echo [x]
"""
inspectSymbol overloadedProc, """
proc overloadedProc(x: int) =
echo [x]
proc overloadedProc(x: string) =
echo [x]
proc overloadedProc[T](x: T) =
echo x
"""
inspectSymbol overloadedProc[float], """
proc overloadedProc(x: T) =
echo [x]
"""
# As expected, when we select a specific generic, the
# AST is no longer a symChoice
inspectSymbol bindSym("overloadedProc"), """
proc overloadedProc(x: int) =
echo [x]
proc overloadedProc(x: string) =
echo [x]
proc overloadedProc[T](x: T) =
echo x
"""
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