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https://github.com/nim-lang/Nim.git
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44 lines
1.1 KiB
Nim
44 lines
1.1 KiB
Nim
discard """
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cmd: "nim $target --debuginfo --hints:on --define:useNimRtl $options $file"
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"""
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type
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TNodeKind = enum nkLit, nkSub, nkAdd, nkDiv, nkMul
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TNode = object
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case k: TNodeKind
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of nkLit: x: int
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else: a, b: ref TNode
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PNode = ref TNode
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when defined(windows):
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const dllname = "server.dll"
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elif defined(macosx):
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const dllname = "libserver.dylib"
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else:
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const dllname = "libserver.so"
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proc newLit(x: int): PNode {.importc: "newLit", dynlib: dllname.}
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proc newOp(k: TNodeKind, a, b: PNode): PNode {.
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importc: "newOp", dynlib: dllname.}
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proc buildTree(x: int): PNode {.importc: "buildTree", dynlib: dllname.}
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proc eval(n: PNode): int =
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case n.k
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of nkLit: result = n.x
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of nkSub: result = eval(n.a) - eval(n.b)
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of nkAdd: result = eval(n.a) + eval(n.b)
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of nkDiv: result = eval(n.a) div eval(n.b)
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of nkMul: result = eval(n.a) * eval(n.b)
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# Test the GC:
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for i in 0..100_000:
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discard eval(buildTree(2))
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# bug https://forum.nim-lang.org/t/8176; Error: ambiguous identifier: 'nimrtl'
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import std/strutils
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doAssert join(@[1, 2]) == "12"
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doAssert join(@[1.5, 2.5]) == "1.52.5"
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doAssert join(@["a", "bc"]) == "abc"
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