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Last-Modified: Sat, 15 Feb 2025 06:23:33 GMT
Expires: Tue, 13 Feb 2035 06:23:33 GMT
ETag: "bcc83e4145f66e665de5947db33a3bce6be3be6b"

discard """
  output: "Valid and not defined"
"""
# test for issue #7997
# checking for `when not defined` in a template for some compile time symbol
# results in a compilation error of:
# Error: obsolete usage of 'defined', use 'declared' instead
# if the symbol is 'overloaded' by some variable or procedure, because in
# that case the argument of `defined` is of kind `nkSym` instead of `nkIdent`
# (for which was checked in `semexprs.semDefined`).

block:
  # check whether a proc with the same name as the argument to `defined`
  # compiles
  proc overloaded() =
    discard

  template definedCheck(): untyped =
    when not defined(overloaded): true
    else: false
  doAssert definedCheck == true

block:
  # check whether a variable with the same name as the argument to `defined`
  # compiles
  var overloaded: int

  template definedCheck(): untyped =
    when not defined(overloaded): true
    else: false
  doAssert definedCheck == true

block:
  # check whether a non overloaded when check still works properly
  when not defined(validIdentifier):
    echo "Valid and not defined"

block:
  # now check that invalid identifiers cause a compilation error
  # by using reject template.
  template reject(b) =
    static: doAssert(not compiles(b))

  reject:
    when defined(123):
      echo "Invalid identifier! Will not be echoed"
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<a id='n9' href='#n9'>9</a>
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<a id='n11' href='#n11'>11</a>
<a id='n12' href='#n12'>12</a>
<a id='n13' href='#n13'>13</a>
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</pre></td>
<td class='lines'><pre><code><style>pre { line-height: 125%; }
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<span class="nb">set</span><span class="w"> </span>-e

rm<span class="w"> </span>-rf<span class="w"> </span>nimcache

<span class="nv">NIM_FLAGS</span><span class="o">=</span><span class="si">${</span><span class="p">*</span><span class="k">:-</span><span class="p"> -d:</span><span class="nv">debug</span><span class="si">}</span>
<span class="nv">NIM</span><span class="o">=</span>nim

<span class="nv">$NIM</span><span class="w"> </span>c<span class="w"> </span>--outdir:<span class="s2">&quot;.&quot;</span><span class="w"> </span><span class="nv">$NIM_FLAGS</span><span class="w"> </span>../../lib/nimrtl.nim
<span class="nv">$NIM</span><span class="w"> </span>c<span class="w"> </span>--outdir:<span class="s2">&quot;.&quot;</span><span class="w"> </span><span class="nv">$NIM_FLAGS</span><span class="w"> </span>../../lib/nimhcr.nim

<span class="nb">echo</span><span class="w"> </span><span class="o">=====</span><span class="w"> </span>Compiling<span class="w"> </span>HCR<span class="w"> </span>Integration<span class="w"> </span><span class="nv">Test</span><span class="w"> </span><span class="o">=====</span>
<span class="nv">HCR_FLAGS</span><span class="o">=</span><span class="s2">&quot;--forceBuild --hotCodeReloading:on --nimcache:nimcache </span><span class="nv">$NIM_FLAGS</span><span class="s2">&quot;</span>
<span class="nv">$NIM</span><span class="w"> </span><span class="nv">$HCR_FLAGS</span><span class="w"> </span>c<span class="w"> </span>nimhcr_integration.nim
<span class="nb">export</span><span class="w"> </span><span class="nv">LD_LIBRARY_PATH</span><span class="o">=</span><span class="k">$(</span><span class="nb">pwd</span><span class="k">)</span>:<span class="nv">$LD_LIBRARY_PATH</span>
./nimhcr_integration<span class="w"> </span><span class="nv">$NIM</span><span class="w"> </span><span class="nv">$HCR_FLAGS</span><span class="w"> </span>c<span class="w"> </span>nimhcr_integration.nim
</pre></div>
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