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51 lines
1.0 KiB
Nim
51 lines
1.0 KiB
Nim
# Dump the contents of a NimNode
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import macros
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template plus(a, b: untyped): untyped {.dirty} =
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a + b
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macro call(e: untyped): untyped =
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result = newCall("foo", newStrLitNode("bar"))
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macro dumpAST(n: untyped): untyped =
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# dump AST as a side-effect and return the inner node
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let n = callsite()
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echo n.lispRepr
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echo n.treeRepr
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var plusAst = getAst(plus(1, 2))
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echo plusAst.lispRepr
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var callAst = getAst(call(4))
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echo callAst.lispRepr
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var e = parseExpr("foo(bar + baz)")
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echo e.lispRepr
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result = n[1]
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dumpAST:
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proc add(x, y: int): int =
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return x + y
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proc sub(x, y: int): int = return x - y
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macro fun() =
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let n = quote do:
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1+1 == 2
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doAssert n.repr == "1 + 1 == 2", n.repr
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fun()
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macro fun2(): untyped =
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let n = quote do:
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1 + 2 * 3 == 1 + 6
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doAssert n.repr == "1 + 2 * 3 == 1 + 6", n.repr
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fun2()
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macro fun3(): untyped =
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let n = quote do:
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int | float | array | seq | object | ptr | pointer | float32
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doAssert n.repr == "int | float | array | seq | object | ptr | pointer | float32", n.repr
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fun3()
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