Bug 15525 – SEGV running semantic analysis on non-root decl that has errors.

One such example. bug.d: --- struct CrashMe { import typecons; Tuple!() crash; } typecons.d --- template Tuple{ static if } command: dmd bug.d typecons.d(1): Error: parenthesized TemplateParameterList expected following TemplateIdentifier typecons.d(1): Error: (expression) expected following static if typecons.d(1): Error: declaration expected, not '}' Segmentation fault stacktrace: --- Program received signal SIGSEGV, Segmentation fault. 0x00000000004e49ca in StaticIfCondition::syntaxCopy() (this=0x7ffff6bfb950) at cond.d:345 (gdb) bt #0 0x00000000004e49ca in StaticIfCondition::syntaxCopy() (this=0x7ffff6bfb950) at cond.d:345 #1 0x00000000004dd0b6 in StaticIfDeclaration::syntaxCopy(Dsymbol*) (this=0x7ffff6bfb9a0, s=0x0) at attrib.d:1132 #2 0x0000000000532b83 in Dsymbol::arraySyntaxCopy(Array<Dsymbol*>*) (a=0x7ffff6bfb930) at dsymbol.d:467 #3 0x000000000054391f in TemplateInstance::semantic(Scope*, Array<Expression*>*) (this=0x7ffff7ed3ee0, sc=0x7ffff6bfbf50, fargs=0x0) at dtem plate.d:5725 #4 0x000000000054435c in TemplateInstance::semantic(Scope*) (this=0x7ffff7ed3ee0, sc=0x7ffff6bfbf50) at dtemplate.d:6009 #5 0x00000000005bd892 in TypeInstance::resolve(Loc, Scope*, Expression**, Type**, Dsymbol**, bool) (this=0x7ffff7ed4040, loc=..., sc=0x7ffff 6bfbf50, pe=0x7fffffffc9f0, pt=0x7fffffffc9e8, ps=0x7fffffffc9f8, intypeid=false) at mtype.d:7392 #6 0x00000000005bd96a in TypeInstance::semantic(Loc, Scope*) (this=0x7ffff7ed4040, loc=..., sc=0x7ffff6bfbf50) at mtype.d:7413 #7 0x00000000005065b5 in VarDeclaration::semantic(Scope*) (this=0x7ffff7ed4120, sc=0x7ffff6bfaf80) at declaration.d:1153 #8 0x0000000000530af9 in StructDeclaration::semantic(Scope*) (this=0x7ffff7ed3ad0, sc=0x7ffff7ed4410) at dstruct.d:378 #9 0x00000000005276c5 in Module::semantic() (this=0x7ffff7ed3840) at dmodule.d:987 #10 0x00000000005ac759 in tryMain(unsigned long, char const**) (argc=2, argv=0x7fffffffde38) at mars.d:1488 #11 0x00000000005ad267 in D main () at mars.d:1698 ---

@RazvanN7 created dlang/dmd pull request #14359 "Fix Issue 15525 - SEGV running semantic analysis on non-root decl tha…" fixing this issue: - Fix Issue 15525 - SEGV running semantic analysis on non-root decl that has errors https://github.com/dlang/dmd/pull/14359

dlang/dmd pull request #14359 "Fix Issue 15525 - SEGV running semantic analysis on non-root decl tha…" was merged into master: - 39b0aad66f39b896163d698d07b309993450221c by RazvanN7: Fix Issue 15525 - SEGV running semantic analysis on non-root decl that has errors https://github.com/dlang/dmd/pull/14359