From 0212f0c0088ef53f5fe210feede55ce2877b364d Mon Sep 17 00:00:00 2001 From: Damian Gryski Date: Fri, 9 Jun 2023 01:21:41 -0700 Subject: compiler: limit level of pointer-to-pointer-to-... types --- compiler/interface.go | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'compiler') diff --git a/compiler/interface.go b/compiler/interface.go index 3fdb30bb8..da9982148 100644 --- a/compiler/interface.go +++ b/compiler/interface.go @@ -133,6 +133,10 @@ func (c *compilerContext) getTypeCode(typ types.Type) llvm.Value { if _, ok := typ.Elem().(*types.Pointer); ok { // For a pointer to a pointer, we just increase the pointer by 1 ptr := c.getTypeCode(typ.Elem()) + // if the type is already *****T or higher, we can't make it. + if typstr := typ.String(); strings.HasPrefix(typstr, "*****") { + c.addError(token.NoPos, fmt.Sprintf("too many levels of pointers for typecode: %s", typstr)) + } return llvm.ConstGEP(c.ctx.Int8Type(), ptr, []llvm.Value{ llvm.ConstInt(llvm.Int32Type(), 1, false), }) -- cgit v1.2.3