https://issues.dlang.org/show_bug.cgi?id=19937
Seb <greeen...@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |greeen...@gmail.com --- Comment #2 from Seb <greeen...@gmail.com> --- Demangled: --- checkaction.o:checkaction.d:function const pure nothrow @nogc @trusted bool std.uni.Trie!(std.uni.BitPacked!(bool, 1uL).BitPacked, dchar, 1114112uL, std.uni.sliceBits!(13uL, 21uL).sliceBits, std.uni.sliceBits!(8uL, 13uL).sliceBits, std.uni.sliceBits!(0uL, 8uL).sliceBits).Trie.opIndex!().opIndex(dchar): error: undefined reference to 'pure nothrow @nogc @safe immutable(char)[] object._d_assert_fail!("<", ulong, ulong)._d_assert_fail(ulong, ulong)' --- Code generated from DMD looks like this: ``` inout pure nothrow @nogc @system BitPacked!(bool, 1LU) opIndex(ulong idx) in { assert(idx < this.limit, _d_assert_fail(idx, this.limit)); } do { { { assert(idx < this.limit, _d_assert_fail(idx, this.limit)); } } return this.ptr.opIndex(this.ofs + idx); } ``` ... ``` _d_assert_fail!("<", ulong, ulong) { pure nothrow @nogc @safe string _d_assert_fail(ulong a, ulong b) { import core.internal.dassert : invertCompToken, miniFormatFakeAttributes, pureAlloc; string valA = miniFormatFakeAttributes(a); string valB = miniFormatFakeAttributes(b); enum string token = ">="; const const(ulong) totalLen = valA.length + 2LU + valB.length + 2LU; char[] buffer = cast(char[])pureAlloc(totalLen)[0..totalLen]; ulong n = valA.length; buffer[0..n] = cast(const(char[]))valA; buffer[n++] = ' '; buffer[n..n + 2LU] = ">="; n += 2LU; buffer[n++] = ' '; buffer[n..n + valB.length] = cast(const(char[]))valB; return delegate () => cast(string)buffer(); } } ``` but it doesn't appear in the object file: ``` $ nm bar.o | grep assert_fail | ddemangle 0000000000000000 W pure nothrow @nogc @trusted immutable(char)[] object._d_assert_fail!("<", uint, uint)._d_assert_fail(uint, uint).__lambda3() 0000000000000000 W pure nothrow @nogc @safe immutable(char)[] object._d_assert_fail!("<", uint, uint)._d_assert_fail(uint, uint) U pure nothrow @nogc @safe immutable(char)[] object._d_assert_fail!("<", ulong, ulong)._d_assert_fail(ulong, ulong) 0000000000000000 W pure nothrow @nogc @trusted immutable(char)[] object._d_assert_fail!(">=", uint, uint)._d_assert_fail(uint, uint).__lambda3() 0000000000000000 W pure nothrow @nogc @safe immutable(char)[] object._d_assert_fail!(">=", uint, uint)._d_assert_fail(uint, uint) ``` DMD probably thinks that this assertion was already instantiated in Phobos (and thus should be part of the object file), but it is not as Phobos was build without -checkaction=context. --