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Pass noReturn pragma to C code.

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With GCC and Clang this generates __attribute__((noreturn)) in the
function declaration. (both tested) With VCC __declspec(noreturn) is
used.
This commit is contained in:
def 2015-05-04 23:59:53 +02:00
commit a9fe618756
2 changed files with 10 additions and 3 deletions
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5
compiler/cgen.nim
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@ -676,6 +676,9 @@ proc genProcAux(m: BModule, prc: PSym) =
closureSetup(p, prc)
genStmts(p, prc.getBody) # modifies p.locals, p.init, etc.
var generatedProc: Rope
if sfNoReturn in prc.flags:
if hasNoreturnDeclspec in extccomp.CC[extccomp.cCompiler].props:
header = "__declspec(noreturn) " & header
if sfPure in prc.flags:
if hasNakedDeclspec in extccomp.CC[extccomp.cCompiler].props:
header = "__declspec(naked) " & header
@ -722,6 +725,8 @@ proc genProcPrototype(m: BModule, sym: PSym) =
header = "extern \"C\" " & header
if sfPure in sym.flags and hasNakedAttribute in CC[cCompiler].props:
header.add(" __attribute__((naked))")
if sfNoReturn in sym.flags and hasNoreturnAttribute in CC[cCompiler].props:
header.add(" __attribute__((noreturn))")
add(m.s[cfsProcHeaders], rfmt(nil, "$1;$n", header))
proc genProcNoForward(m: BModule, prc: PSym) =