Excerpts from David Malcolm via Gcc-patches's message of Mai 23, 2022 9:28 pm:
> gcc/d/ChangeLog:
> * decl.cc: Add "final" and "override" to all "visit" vfunc decls
> as appropriate.
> * expr.cc: Likewise.
> * toir.cc: Likewise.
> * typeinfo.cc: Likewise.
> * types.cc: Likewise.
>
> Signed-off-by: David Malcolm <dmalc...@redhat.com>
Thanks David!
Looks OK to me.
Iain.
> ---
> gcc/d/decl.cc | 36 +++++++++++++-------------
> gcc/d/expr.cc | 2 +-
> gcc/d/toir.cc | 64 +++++++++++++++++++++++------------------------
> gcc/d/typeinfo.cc | 34 ++++++++++++-------------
> gcc/d/types.cc | 30 +++++++++++-----------
> 5 files changed, 83 insertions(+), 83 deletions(-)
>
> diff --git a/gcc/d/decl.cc b/gcc/d/decl.cc
> index f5c21078aad..5d850065bf0 100644
> --- a/gcc/d/decl.cc
> +++ b/gcc/d/decl.cc
> @@ -149,13 +149,13 @@ public:
>
> /* This should be overridden by each declaration class. */
>
> - void visit (Dsymbol *)
> + void visit (Dsymbol *) final override
> {
> }
>
> /* Compile a D module, and all members of it. */
>
> - void visit (Module *d)
> + void visit (Module *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -166,7 +166,7 @@ public:
>
> /* Write the imported symbol to debug. */
>
> - void visit (Import *d)
> + void visit (Import *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -218,7 +218,7 @@ public:
>
> /* Expand any local variables found in tuples. */
>
> - void visit (TupleDeclaration *d)
> + void visit (TupleDeclaration *d) final override
> {
> for (size_t i = 0; i < d->objects->length; i++)
> {
> @@ -234,7 +234,7 @@ public:
>
> /* Walk over all declarations in the attribute scope. */
>
> - void visit (AttribDeclaration *d)
> + void visit (AttribDeclaration *d) final override
> {
> Dsymbols *ds = d->include (NULL);
>
> @@ -248,7 +248,7 @@ public:
> /* Pragmas are a way to pass special information to the compiler and to add
> vendor specific extensions to D. */
>
> - void visit (PragmaDeclaration *d)
> + void visit (PragmaDeclaration *d) final override
> {
> if (d->ident == Identifier::idPool ("lib")
> || d->ident == Identifier::idPool ("startaddress"))
> @@ -266,7 +266,7 @@ public:
> /* Conditional compilation is the process of selecting which code to
> compile
> and which code to not compile. Look for version conditions that may */
>
> - void visit (ConditionalDeclaration *d)
> + void visit (ConditionalDeclaration *d) final override
> {
> bool old_condition = this->in_version_unittest_;
>
> @@ -284,7 +284,7 @@ public:
>
> /* Walk over all members in the namespace scope. */
>
> - void visit (Nspace *d)
> + void visit (Nspace *d) final override
> {
> if (isError (d) || !d->members)
> return;
> @@ -298,7 +298,7 @@ public:
> voldemort type, then it's members must be compiled before the parent
> function finishes. */
>
> - void visit (TemplateDeclaration *d)
> + void visit (TemplateDeclaration *d) final override
> {
> /* Type cannot be directly named outside of the scope it's declared in,
> so
> the only way it can be escaped is if the function has auto return. */
> @@ -329,7 +329,7 @@ public:
>
> /* Walk over all members in the instantiated template. */
>
> - void visit (TemplateInstance *d)
> + void visit (TemplateInstance *d) final override
> {
> if (isError (d)|| !d->members)
> return;
> @@ -343,7 +343,7 @@ public:
>
> /* Walk over all members in the mixin template scope. */
>
> - void visit (TemplateMixin *d)
> + void visit (TemplateMixin *d) final override
> {
> if (isError (d)|| !d->members)
> return;
> @@ -355,7 +355,7 @@ public:
> /* Write out compiler generated TypeInfo, initializer and functions for the
> given struct declaration, walking over all static members. */
>
> - void visit (StructDeclaration *d)
> + void visit (StructDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -470,7 +470,7 @@ public:
> /* Write out compiler generated TypeInfo, initializer and vtables for the
> given class declaration, walking over all static members. */
>
> - void visit (ClassDeclaration *d)
> + void visit (ClassDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -544,7 +544,7 @@ public:
> /* Write out compiler generated TypeInfo and vtables for the given
> interface
> declaration, walking over all static members. */
>
> - void visit (InterfaceDeclaration *d)
> + void visit (InterfaceDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -587,7 +587,7 @@ public:
> /* Write out compiler generated TypeInfo and initializer for the given
> enum declaration. */
>
> - void visit (EnumDeclaration *d)
> + void visit (EnumDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -626,7 +626,7 @@ public:
> /* Finish up a variable declaration and push it into the current scope.
> This can either be a static, local or manifest constant. */
>
> - void visit (VarDeclaration *d)
> + void visit (VarDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -753,7 +753,7 @@ public:
> /* Generate and compile a static TypeInfo declaration, but only if it is
> needed in the current compilation. */
>
> - void visit (TypeInfoDeclaration *d)
> + void visit (TypeInfoDeclaration *d) final override
> {
> if (d->semanticRun >= PASS::obj)
> return;
> @@ -770,7 +770,7 @@ public:
> /* Finish up a function declaration and compile it all the way
> down to assembler language output. */
>
> - void visit (FuncDeclaration *d)
> + void visit (FuncDeclaration *d) final override
> {
> /* Already generated the function. */
> if (d->semanticRun >= PASS::obj)
> diff --git a/gcc/d/expr.cc b/gcc/d/expr.cc
> index 7f5e683a676..c259e7df6d5 100644
> --- a/gcc/d/expr.cc
> +++ b/gcc/d/expr.cc
> @@ -2556,7 +2556,7 @@ public:
> /* Build a tuple literal. Just an argument list that may have
> side effects that need evaluation. */
>
> - void visit (TupleExp *e)
> + void visit (TupleExp *e) final override
> {
> tree result = NULL_TREE;
>
> diff --git a/gcc/d/toir.cc b/gcc/d/toir.cc
> index d20c5c3b927..50d44156cca 100644
> --- a/gcc/d/toir.cc
> +++ b/gcc/d/toir.cc
> @@ -534,7 +534,7 @@ public:
>
> /* This should be overridden by each statement class. */
>
> - void visit (Statement *)
> + void visit (Statement *) final override
> {
> gcc_unreachable ();
> }
> @@ -543,13 +543,13 @@ public:
> try/catch/finally. At this point, this statement is just an empty
> placeholder. Maybe the frontend shouldn't leak these. */
>
> - void visit (ScopeGuardStatement *)
> + void visit (ScopeGuardStatement *) final override
> {
> }
>
> /* If statements provide simple conditional execution of statements. */
>
> - void visit (IfStatement *s)
> + void visit (IfStatement *s) final override
> {
> this->start_scope (level_cond);
>
> @@ -588,7 +588,7 @@ public:
> here would be the place to do it. For now, all pragmas are handled
> by the frontend. */
>
> - void visit (PragmaStatement *)
> + void visit (PragmaStatement *) final override
> {
> }
>
> @@ -596,7 +596,7 @@ public:
> This visitor is not strictly required other than to enforce that
> these kinds of statements never reach here. */
>
> - void visit (WhileStatement *)
> + void visit (WhileStatement *) final override
> {
> gcc_unreachable ();
> }
> @@ -604,7 +604,7 @@ public:
> /* Do while statments implement simple loops. The body is executed, then
> the condition is evaluated. */
>
> - void visit (DoStatement *s)
> + void visit (DoStatement *s) final override
> {
> tree lbreak = this->push_break_label (s);
>
> @@ -633,7 +633,7 @@ public:
> /* For statements implement loops with initialization, test, and
> increment clauses. */
>
> - void visit (ForStatement *s)
> + void visit (ForStatement *s) final override
> {
> tree lbreak = this->push_break_label (s);
> this->start_scope (level_loop);
> @@ -674,7 +674,7 @@ public:
> This visitor is not strictly required other than to enforce that
> these kinds of statements never reach here. */
>
> - void visit (ForeachStatement *)
> + void visit (ForeachStatement *) final override
> {
> gcc_unreachable ();
> }
> @@ -683,7 +683,7 @@ public:
> loops. This visitor is not strictly required other than to enforce that
> these kinds of statements never reach here. */
>
> - void visit (ForeachRangeStatement *)
> + void visit (ForeachRangeStatement *) final override
> {
> gcc_unreachable ();
> }
> @@ -691,7 +691,7 @@ public:
> /* Jump to the associated exit label for the current loop. If IDENT
> for the Statement is not null, then the label is user defined. */
>
> - void visit (BreakStatement *s)
> + void visit (BreakStatement *s) final override
> {
> if (s->ident)
> {
> @@ -710,7 +710,7 @@ public:
> /* Jump to the associated continue label for the current loop. If IDENT
> for the Statement is not null, then the label is user defined. */
>
> - void visit (ContinueStatement *s)
> + void visit (ContinueStatement *s) final override
> {
> if (s->ident)
> {
> @@ -726,7 +726,7 @@ public:
>
> /* A goto statement jumps to the statement identified by the given label.
> */
>
> - void visit (GotoStatement *s)
> + void visit (GotoStatement *s) final override
> {
> gcc_assert (s->label->statement != NULL);
> gcc_assert (s->tf == s->label->statement->tf);
> @@ -742,7 +742,7 @@ public:
> /* Statements can be labeled. A label is an identifier that precedes
> a statement. */
>
> - void visit (LabelStatement *s)
> + void visit (LabelStatement *s) final override
> {
> LabelDsymbol *sym;
>
> @@ -766,7 +766,7 @@ public:
> /* A switch statement goes to one of a collection of case statements
> depending on the value of the switch expression. */
>
> - void visit (SwitchStatement *s)
> + void visit (SwitchStatement *s) final override
> {
> this->start_scope (level_switch);
> tree lbreak = this->push_break_label (s);
> @@ -855,7 +855,7 @@ public:
>
> /* Declare the case label associated with the current SwitchStatement. */
>
> - void visit (CaseStatement *s)
> + void visit (CaseStatement *s) final override
> {
> /* Emit the case label. */
> tree label = this->define_label (s);
> @@ -881,7 +881,7 @@ public:
>
> /* Declare the default label associated with the current SwitchStatement.
> */
>
> - void visit (DefaultStatement *s)
> + void visit (DefaultStatement *s) final override
> {
> /* Emit the default case label. */
> tree label = this->define_label (s);
> @@ -902,7 +902,7 @@ public:
> /* Implements `goto default' by jumping to the label associated with
> the DefaultStatement in a switch block. */
>
> - void visit (GotoDefaultStatement *s)
> + void visit (GotoDefaultStatement *s) final override
> {
> tree label = this->lookup_label (s->sw->sdefault);
> this->do_jump (label);
> @@ -911,7 +911,7 @@ public:
> /* Implements `goto case' by jumping to the label associated with the
> CaseStatement in a switch block. */
>
> - void visit (GotoCaseStatement *s)
> + void visit (GotoCaseStatement *s) final override
> {
> tree label = this->lookup_label (s->cs);
> this->do_jump (label);
> @@ -920,7 +920,7 @@ public:
> /* Throw a SwitchError exception, called when a switch statement has
> no DefaultStatement, yet none of the cases match. */
>
> - void visit (SwitchErrorStatement *s)
> + void visit (SwitchErrorStatement *s) final override
> {
> /* A throw SwitchError statement gets turned into a library call.
> The call is wrapped in the enclosed expression. */
> @@ -931,7 +931,7 @@ public:
> /* A return statement exits the current function and supplies its return
> value, if the return type is not void. */
>
> - void visit (ReturnStatement *s)
> + void visit (ReturnStatement *s) final override
> {
> if (s->exp == NULL || s->exp->type->toBasetype ()->ty == TY::Tvoid)
> {
> @@ -1044,7 +1044,7 @@ public:
>
> /* Evaluate the enclosed expression, and add it to the statement list. */
>
> - void visit (ExpStatement *s)
> + void visit (ExpStatement *s) final override
> {
> if (s->exp)
> {
> @@ -1056,7 +1056,7 @@ public:
>
> /* Evaluate all enclosed statements. */
>
> - void visit (CompoundStatement *s)
> + void visit (CompoundStatement *s) final override
> {
> if (s->statements == NULL)
> return;
> @@ -1074,7 +1074,7 @@ public:
> These are compiled down as a `do ... while (0)', where each unrolled
> loop
> is nested inside and given their own continue label to jump to. */
>
> - void visit (UnrolledLoopStatement *s)
> + void visit (UnrolledLoopStatement *s) final override
> {
> if (s->statements == NULL)
> return;
> @@ -1105,7 +1105,7 @@ public:
> /* Start a new scope and visit all nested statements, wrapping
> them up into a BIND_EXPR at the end of the scope. */
>
> - void visit (ScopeStatement *s)
> + void visit (ScopeStatement *s) final override
> {
> if (s->statement == NULL)
> return;
> @@ -1118,7 +1118,7 @@ public:
> /* A with statement is a way to simplify repeated references to the same
> object, where the handle is either a class or struct instance. */
>
> - void visit (WithStatement *s)
> + void visit (WithStatement *s) final override
> {
> this->start_scope (level_with);
>
> @@ -1143,7 +1143,7 @@ public:
> thrown is a class type, but does not check if it is derived from
> Object. Foreign objects are not currently supported at run-time. */
>
> - void visit (ThrowStatement *s)
> + void visit (ThrowStatement *s) final override
> {
> ClassDeclaration *cd = s->exp->type->toBasetype ()->isClassHandle ();
> InterfaceDeclaration *id = cd->isInterfaceDeclaration ();
> @@ -1174,7 +1174,7 @@ public:
> handling generated by the frontend. This is also used to implement
> `scope (failure)' statements. */
>
> - void visit (TryCatchStatement *s)
> + void visit (TryCatchStatement *s) final override
> {
> this->start_scope (level_try);
> if (s->_body)
> @@ -1263,7 +1263,7 @@ public:
> handling generated by the frontend. This is also used to implement
> `scope (exit)' statements. */
>
> - void visit (TryFinallyStatement *s)
> + void visit (TryFinallyStatement *s) final override
> {
> this->start_scope (level_try);
> if (s->_body)
> @@ -1285,7 +1285,7 @@ public:
> This visitor is not strictly required other than to enforce that
> these kinds of statements never reach here. */
>
> - void visit (SynchronizedStatement *)
> + void visit (SynchronizedStatement *) final override
> {
> gcc_unreachable ();
> }
> @@ -1294,7 +1294,7 @@ public:
> an assembly parser for each supported target. Instead we leverage
> GCC extended assembler using the GccAsmStatement class. */
>
> - void visit (AsmStatement *)
> + void visit (AsmStatement *) final override
> {
> sorry ("D inline assembler statements are not supported in GDC.");
> }
> @@ -1302,7 +1302,7 @@ public:
> /* Build a GCC extended assembler expression, whose components are
> an INSN string, some OUTPUTS, some INPUTS, and some CLOBBERS. */
>
> - void visit (GccAsmStatement *s)
> + void visit (GccAsmStatement *s) final override
> {
> StringExp *insn = s->insn->toStringExp ();
> tree outputs = NULL_TREE;
> @@ -1454,7 +1454,7 @@ public:
>
> /* Import symbols from another module. */
>
> - void visit (ImportStatement *s)
> + void visit (ImportStatement *s) final override
> {
> if (s->imports == NULL)
> return;
> diff --git a/gcc/d/typeinfo.cc b/gcc/d/typeinfo.cc
> index 668b7b3c8e1..a31762fe270 100644
> --- a/gcc/d/typeinfo.cc
> +++ b/gcc/d/typeinfo.cc
> @@ -556,7 +556,7 @@ public:
> void **__vptr;
> void *__monitor; */
>
> - void visit (TypeInfoDeclaration *)
> + void visit (TypeInfoDeclaration *) final override
> {
> /* The vtable for TypeInfo. */
> this->layout_base (Type::dtypeinfo);
> @@ -567,7 +567,7 @@ public:
> void *__monitor;
> TypeInfo base; */
>
> - void visit (TypeInfoConstDeclaration *d)
> + void visit (TypeInfoConstDeclaration *d) final override
> {
> Type *tm = d->tinfo->mutableOf ();
> tm = tm->merge2 ();
> @@ -584,7 +584,7 @@ public:
> void *__monitor;
> TypeInfo base; */
>
> - void visit (TypeInfoInvariantDeclaration *d)
> + void visit (TypeInfoInvariantDeclaration *d) final override
> {
> Type *tm = d->tinfo->mutableOf ();
> tm = tm->merge2 ();
> @@ -601,7 +601,7 @@ public:
> void *__monitor;
> TypeInfo base; */
>
> - void visit (TypeInfoSharedDeclaration *d)
> + void visit (TypeInfoSharedDeclaration *d) final override
> {
> Type *tm = d->tinfo->unSharedOf ();
> tm = tm->merge2 ();
> @@ -618,7 +618,7 @@ public:
> void *__monitor;
> TypeInfo base; */
>
> - void visit (TypeInfoWildDeclaration *d)
> + void visit (TypeInfoWildDeclaration *d) final override
> {
> Type *tm = d->tinfo->mutableOf ();
> tm = tm->merge2 ();
> @@ -637,7 +637,7 @@ public:
> string name;
> void[] m_init; */
>
> - void visit (TypeInfoEnumDeclaration *d)
> + void visit (TypeInfoEnumDeclaration *d) final override
> {
> TypeEnum *ti = d->tinfo->isTypeEnum ();
> EnumDeclaration *ed = ti->sym;
> @@ -669,7 +669,7 @@ public:
> void *__monitor;
> TypeInfo m_next; */
>
> - void visit (TypeInfoPointerDeclaration *d)
> + void visit (TypeInfoPointerDeclaration *d) final override
> {
> TypePointer *ti = d->tinfo->isTypePointer ();
>
> @@ -685,7 +685,7 @@ public:
> void *__monitor;
> TypeInfo value; */
>
> - void visit (TypeInfoArrayDeclaration *d)
> + void visit (TypeInfoArrayDeclaration *d) final override
> {
> TypeDArray *ti = d->tinfo->isTypeDArray ();
>
> @@ -702,7 +702,7 @@ public:
> TypeInfo value;
> size_t len; */
>
> - void visit (TypeInfoStaticArrayDeclaration *d)
> + void visit (TypeInfoStaticArrayDeclaration *d) final override
> {
> TypeSArray *ti = d->tinfo->isTypeSArray ();
>
> @@ -722,7 +722,7 @@ public:
> TypeInfo value;
> TypeInfo key; */
>
> - void visit (TypeInfoAssociativeArrayDeclaration *d)
> + void visit (TypeInfoAssociativeArrayDeclaration *d) final override
> {
> TypeAArray *ti = d->tinfo->isTypeAArray ();
>
> @@ -741,7 +741,7 @@ public:
> void *__monitor;
> TypeInfo base; */
>
> - void visit (TypeInfoVectorDeclaration *d)
> + void visit (TypeInfoVectorDeclaration *d) final override
> {
> TypeVector *ti = d->tinfo->isTypeVector ();
>
> @@ -758,7 +758,7 @@ public:
> TypeInfo next;
> string deco; */
>
> - void visit (TypeInfoFunctionDeclaration *d)
> + void visit (TypeInfoFunctionDeclaration *d) final override
> {
> TypeFunction *ti = d->tinfo->isTypeFunction ();
> gcc_assert (ti->deco != NULL);
> @@ -779,7 +779,7 @@ public:
> TypeInfo next;
> string deco; */
>
> - void visit (TypeInfoDelegateDeclaration *d)
> + void visit (TypeInfoDelegateDeclaration *d) final override
> {
> TypeDelegate *ti = d->tinfo->isTypeDelegate ();
> gcc_assert (ti->deco != NULL);
> @@ -813,7 +813,7 @@ public:
> Information relating to interfaces, and their vtables are laid out
> immediately after the named fields, if there is anything to write. */
>
> - void visit (TypeInfoClassDeclaration *d)
> + void visit (TypeInfoClassDeclaration *d) final override
> {
> TypeClass *ti = d->tinfo->isTypeClass ();
> ClassDeclaration *cd = ti->sym;
> @@ -1004,7 +1004,7 @@ public:
> void *__monitor;
> TypeInfo_Class info; */
>
> - void visit (TypeInfoInterfaceDeclaration *d)
> + void visit (TypeInfoInterfaceDeclaration *d) final override
> {
> TypeClass *ti = d->tinfo->isTypeClass ();
>
> @@ -1034,7 +1034,7 @@ public:
> uint m_align;
> immutable(void)* xgetRTInfo; */
>
> - void visit (TypeInfoStructDeclaration *d)
> + void visit (TypeInfoStructDeclaration *d) final override
> {
> TypeStruct *ti = d->tinfo->isTypeStruct ();
> StructDeclaration *sd = ti->sym;
> @@ -1119,7 +1119,7 @@ public:
> void *__monitor;
> TypeInfo[] elements; */
>
> - void visit (TypeInfoTupleDeclaration *d)
> + void visit (TypeInfoTupleDeclaration *d) final override
> {
> TypeTuple *ti = d->tinfo->isTypeTuple ();
>
> diff --git a/gcc/d/types.cc b/gcc/d/types.cc
> index c54049dfb98..b17b15359c8 100644
> --- a/gcc/d/types.cc
> +++ b/gcc/d/types.cc
> @@ -665,7 +665,7 @@ public:
>
> /* This should be overridden by each type class. */
>
> - void visit (Type *)
> + void visit (Type *) final override
> {
> gcc_unreachable ();
> }
> @@ -673,21 +673,21 @@ public:
> /* Type assigned to erroneous expressions or constructs that
> failed during the semantic stage. */
>
> - void visit (TypeError *t)
> + void visit (TypeError *t) final override
> {
> t->ctype = error_mark_node;
> }
>
> /* Type assigned to generic nullable types. */
>
> - void visit (TypeNull *t)
> + void visit (TypeNull *t) final override
> {
> t->ctype = ptr_type_node;
> }
>
> /* Bottom type used for functions that never return. */
>
> - void visit (TypeNoreturn *t)
> + void visit (TypeNoreturn *t) final override
> {
> t->ctype = noreturn_type_node;
> TYPE_NAME (t->ctype) = get_identifier (t->toChars ());
> @@ -695,7 +695,7 @@ public:
>
> /* Basic Data Types. */
>
> - void visit (TypeBasic *t)
> + void visit (TypeBasic *t) final override
> {
> /* [type/basic-data-types]
>
> @@ -761,7 +761,7 @@ public:
>
> /* Build a simple pointer to data type, analogous to C pointers. */
>
> - void visit (TypePointer *t)
> + void visit (TypePointer *t) final override
> {
> t->ctype = build_pointer_type (build_ctype (t->next));
> }
> @@ -769,7 +769,7 @@ public:
> /* Build a dynamic array type, consisting of a length and a pointer
> to the array data. */
>
> - void visit (TypeDArray *t)
> + void visit (TypeDArray *t) final override
> {
> /* In [abi/arrays], dynamic array layout is:
> .length array dimension.
> @@ -787,7 +787,7 @@ public:
> /* Build a static array type, distinguished from dynamic arrays by
> having a length fixed at compile-time, analogous to C arrays. */
>
> - void visit (TypeSArray *t)
> + void visit (TypeSArray *t) final override
> {
> if (t->dim->isConst () && t->dim->type->isintegral ())
> {
> @@ -804,7 +804,7 @@ public:
>
> /* Build a vector type, a fixed array of floating or integer types. */
>
> - void visit (TypeVector *t)
> + void visit (TypeVector *t) final override
> {
> int nunits = t->basetype->isTypeSArray ()->dim->toUInteger ();
> tree inner = build_ctype (t->elementType ());
> @@ -821,7 +821,7 @@ public:
> /* Build an associative array type, distinguished from arrays by having an
> index that's not necessarily an integer, and can be sparsely populated.
> */
>
> - void visit (TypeAArray *t)
> + void visit (TypeAArray *t) final override
> {
> /* In [abi/associative-arrays], associative arrays are a struct that only
> consist of a pointer to an opaque, implementation defined type. */
> @@ -835,7 +835,7 @@ public:
> /* Build type for a function declaration, which consists of a return type,
> and a list of parameter types, and a linkage attribute. */
>
> - void visit (TypeFunction *t)
> + void visit (TypeFunction *t) final override
> {
> tree fnparams = NULL_TREE;
> tree fntype;
> @@ -925,7 +925,7 @@ public:
> reference and a pointer to a non-static member function, or a pointer
> to a closure and a pointer to a nested function. */
>
> - void visit (TypeDelegate *t)
> + void visit (TypeDelegate *t) final override
> {
> /* In [abi/delegates], delegate layout is:
> .ptr context pointer.
> @@ -952,7 +952,7 @@ public:
> /* Build a named enum type, a distinct value whose values are restrict to
> a group of constants of the same underlying base type. */
>
> - void visit (TypeEnum *t)
> + void visit (TypeEnum *t) final override
> {
> tree basetype = (t->sym->memtype)
> ? build_ctype (t->sym->memtype) : void_type_node;
> @@ -1067,7 +1067,7 @@ public:
> /* Build a struct or union type. Layout should be exactly represented
> as an equivalent C struct, except for non-POD or nested structs. */
>
> - void visit (TypeStruct *t)
> + void visit (TypeStruct *t) final override
> {
> /* Merge types in the back-end if the front-end did not itself do so. */
> tree deco = get_identifier (d_mangle_decl (t->sym));
> @@ -1123,7 +1123,7 @@ public:
> /* Build a class type. Whereas structs are value types, classes are
> reference types, with all the object-orientated features. */
>
> - void visit (TypeClass *t)
> + void visit (TypeClass *t) final override
> {
> /* Merge types in the back-end if the front-end did not itself do so. */
> tree deco = get_identifier (d_mangle_decl (t->sym));
> --
> 2.26.3
>
>
