Refactor HIR to reduce the amount of raw pointers

Attempt to use references and smart pointers whenever possible. gcc/rust/ChangeLog: * backend/rust-compile-base.cc (HIRCompileBase::compile_function_body): Remove usage of get function to retrieve a raw pointer. * backend/rust-compile-base.h: Change API usage from raw pointer to a reference. * backend/rust-compile-block.cc (CompileBlock::compile): Likewise. (CompileBlock::visit): Likewise. (CompileConditionalBlocks::visit): Likewise. * backend/rust-compile-block.h: Likewise. * backend/rust-compile-expr.cc (CompileExpr::Compile): Likewise. (CompileExpr::visit): Likewise. (check_match_scrutinee): Likewise. (CompileExpr::array_value_expr): Likewise. (CompileExpr::array_copied_expr): Likewise. (CompileExpr::generate_closure_function): Likewise. (CompileExpr::generate_possible_fn_trait_call): Likewise. * backend/rust-compile-expr.h: Likewise. * backend/rust-compile-fnparam.cc (CompileFnParam::compile): Likewise. (CompileFnParam::visit): Likewise. * backend/rust-compile-fnparam.h: Likewise. * backend/rust-compile-implitem.cc (CompileTraitItem::visit): Likewise. * backend/rust-compile-intrinsic.cc (compile_fn_params): Likewise. * backend/rust-compile-item.cc (CompileItem::visit): Likewise. * backend/rust-compile-pattern.cc (CompilePatternCheckExpr::visit): Likewise. (compile_range_pattern_bound): Likewise. (CompilePatternBindings::visit): Likewise. (CompilePatternLet::visit): Likewise. * backend/rust-compile-pattern.h: Likewise. * backend/rust-compile-resolve-path.cc (ResolvePathRef::resolve): Likewise. (HIRCompileBase::query_compile): Likewise. * backend/rust-compile-stmt.cc (CompileStmt::visit): Likewise. * backend/rust-compile-struct-field-expr.cc (CompileStructExprField::Compile): Likewise. (CompileStructExprField::visit): Likewise. * backend/rust-compile-struct-field-expr.h: Likewise. * backend/rust-compile-type.cc (TyTyResolveCompile::visit): Likewise. * backend/rust-compile-var-decl.h: Likewise. * backend/rust-compile.cc: Likewise. * backend/rust-mangle-v0.cc (v0_inherent_or_trait_impl_path): Likewise. * checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit): Likewise. * checks/errors/borrowck/rust-bir-builder-lazyboolexpr.h: Likewise. * checks/errors/borrowck/rust-bir-builder-pattern.h: Likewise. * checks/errors/borrowck/rust-bir-builder-struct.h: Likewise. * checks/errors/borrowck/rust-bir-builder.h: Likewise. * checks/errors/borrowck/rust-function-collector.h: Likewise. * checks/errors/privacy/rust-privacy-reporter.cc (PrivacyReporter::check_type_privacy): Likewise. (PrivacyReporter::visit): Likewise. * checks/errors/privacy/rust-privacy-reporter.h: Likewise. * checks/errors/privacy/rust-reachability.cc (ReachabilityVisitor::visit): Likewise. * checks/errors/rust-const-checker.cc (ConstChecker::visit): Likewise. * checks/errors/rust-unsafe-checker.cc (UnsafeChecker::visit): Likewise. * checks/lints/rust-lint-marklive.cc (MarkLive::visit): Likewise. * checks/lints/rust-lint-marklive.h: Likewise. * hir/rust-hir-dump.cc (Dump::visit): Likewise. * hir/tree/rust-hir-expr.h: Likewise. * hir/tree/rust-hir-item.h: Likewise. * hir/tree/rust-hir-path.h: Likewise. * hir/tree/rust-hir-pattern.h: Likewise. * hir/tree/rust-hir-stmt.h: Likewise. * hir/tree/rust-hir-type.h: Likewise. * hir/tree/rust-hir.h: Likewise. * typecheck/rust-autoderef.cc: Likewise. * typecheck/rust-hir-dot-operator.cc (MethodResolver::select): Likewise. * typecheck/rust-hir-inherent-impl-overlap.h: Likewise. * typecheck/rust-hir-path-probe.cc (PathProbeType::process_impl_item_candidate): Likewise. (PathProbeImplTrait::process_trait_impl_items_for_candidates): Likewise. * typecheck/rust-hir-trait-resolve.cc (TraitResolver::resolve_trait): Likewise. (TraitItemReference::resolve_item): Likewise. * typecheck/rust-hir-type-check-base.cc: Likewise. * typecheck/rust-hir-type-check-base.h: Likewise. * typecheck/rust-hir-type-check-enumitem.cc (TypeCheckEnumItem::Resolve): Likewise. (TypeCheckEnumItem::visit): Likewise. * typecheck/rust-hir-type-check-enumitem.h: Likewise. * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::Resolve): Likewise. (TypeCheckExpr::visit): Likewise. (TypeCheckExpr::resolve_fn_trait_call): Likewise. * typecheck/rust-hir-type-check-expr.h: Likewise. * typecheck/rust-hir-type-check-implitem.cc (TypeCheckTopLevelExternItem::Resolve): Likewise. (TypeCheckTopLevelExternItem::visit): Likewise. (TypeCheckImplItem::visit): Likewise. (TypeCheckImplItemWithTrait::visit): Likewise. * typecheck/rust-hir-type-check-implitem.h: Likewise. * typecheck/rust-hir-type-check-item.cc (TypeCheckItem::visit): Likewise. (TypeCheckItem::resolve_impl_item): Likewise. (TypeCheckItem::resolve_impl_block_substitutions): Likewise. (TypeCheckItem::resolve_impl_block_self): Likewise. * typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::visit): Likewise. (TypeCheckExpr::resolve_segments): Likewise. * typecheck/rust-hir-type-check-pattern.cc (TypeCheckPattern::Resolve): Likewise. (TypeCheckPattern::visit): Likewise. (ClosureParamInfer::Resolve): Likewise. (ClosureParamInfer::visit): Likewise. * typecheck/rust-hir-type-check-pattern.h: Likewise. * typecheck/rust-hir-type-check-stmt.cc (TypeCheckStmt::Resolve): Likewise. (TypeCheckStmt::visit): Likewise. * typecheck/rust-hir-type-check-stmt.h: Likewise. * typecheck/rust-hir-type-check-struct-field.h: Likewise. * typecheck/rust-hir-type-check-struct.cc (TypeCheckStructExpr::TypeCheckStructExpr): Likewise. (TypeCheckStructExpr::Resolve): Likewise. (TypeCheckStructExpr::resolve): Likewise. (TypeCheckStructExpr::visit): Likewise. * typecheck/rust-hir-type-check-type.cc (TypeCheckResolveGenericArguments::resolve): Likewise. (TypeCheckType::Resolve): Likewise. (TypeCheckType::visit): Likewise. (TypeCheckType::resolve_root_path): Likewise. (TypeResolveGenericParam::Resolve): Likewise. (TypeResolveGenericParam::visit): Likewise. (ResolveWhereClauseItem::visit): Likewise. * typecheck/rust-hir-type-check-type.h: Likewise. * typecheck/rust-hir-type-check.cc (TraitItemReference::get_type_from_fn): Likewise. * typecheck/rust-hir-type-check.h: Likewise. * typecheck/rust-type-util.cc (query_type): Likewise. * typecheck/rust-typecheck-context.cc (TypeCheckContextItem::TypeCheckContextItem): Likewise. * typecheck/rust-tyty-bounds.cc (TypeBoundsProbe::scan): Likewise. (TypeCheckBase::get_predicate_from_bound): Likewise. * typecheck/rust-tyty-call.cc (TypeCheckCallExpr::visit): Likewise. (TypeCheckMethodCallExpr::go): Likewise. (TypeCheckMethodCallExpr::check): Likewise. * typecheck/rust-tyty-subst.cc: Likewise. * typecheck/rust-tyty.cc (BaseType::monomorphized_clone): Likewise. (VariantDef::VariantDef): Remove copy constructor. (VariantDef::operator=): Change to move operator. (VariantDef::get_discriminant): Replace return type to a reference instead of a reference to a unique pointer. (VariantDef::clone): Change to references. (VariantDef::monomorphized_clone): Likewise. (FnType::as_string): Likewise. (FnType::clone): Likewise. * typecheck/rust-tyty.h: Likewise. * util/rust-hir-map.cc (Mappings::insert_hir_impl_block): Likewise. Signed-off-by: Pierre-Emmanuel Patry <[email protected]>
Rust-GCC · Jun 27, 2024 · dbce45e · dbce45e
1 parent 40d5292
commit dbce45e
Show file tree

Hide file tree

Showing 75 changed files with 1,267 additions and 1,356 deletions.
diff --git a/gcc/rust/backend/rust-compile-base.cc b/gcc/rust/backend/rust-compile-base.cc
@@ -582,8 +582,9 @@ HIRCompileBase::compile_function_body (tree fndecl,
 
   if (function_body.has_expr ())
     {
-      location_t locus = function_body.get_final_expr ()->get_locus ();
-      tree return_value = CompileExpr::Compile (function_body.expr.get (), ctx);
+      location_t locus = function_body.get_final_expr ().get_locus ();
+      tree return_value
+	= CompileExpr::Compile (function_body.get_final_expr (), ctx);
 
       // we can only return this if non unit value return type
       if (!fn_return_ty->is_unit ())
@@ -709,18 +710,18 @@ HIRCompileBase::compile_function (
   size_t i = is_method ? 1 : 0;
   for (auto &referenced_param : function_params)
     {
-      auto tyty_param = fntype->param_at (i++);
+      auto &tyty_param = fntype->param_at (i++);
       auto param_tyty = tyty_param.second;
       auto compiled_param_type = TyTyResolveCompile::compile (ctx, param_tyty);
 
       location_t param_locus = referenced_param.get_locus ();
       Bvariable *compiled_param_var
-	= CompileFnParam::compile (ctx, fndecl, &referenced_param,
+	= CompileFnParam::compile (ctx, fndecl, referenced_param,
 				   compiled_param_type, param_locus);
 
       param_vars.push_back (compiled_param_var);
 
-      const HIR::Pattern &param_pattern = *referenced_param.get_param_name ();
+      const HIR::Pattern &param_pattern = referenced_param.get_param_name ();
       ctx->insert_var_decl (param_pattern.get_mappings ().get_hirid (),
 			    compiled_param_var);
     }
@@ -768,14 +769,14 @@ HIRCompileBase::compile_function (
 tree
 HIRCompileBase::compile_constant_item (
   TyTy::BaseType *resolved_type, const Resolver::CanonicalPath &canonical_path,
-  HIR::Expr *const_value_expr, location_t locus)
+  HIR::Expr &const_value_expr, location_t locus)
 {
   const std::string &ident = canonical_path.get ();
 
   tree type = TyTyResolveCompile::compile (ctx, resolved_type);
   tree const_type = build_qualified_type (type, TYPE_QUAL_CONST);
   bool is_block_expr
-    = const_value_expr->get_expression_type () == HIR::Expr::ExprType::Block;
+    = const_value_expr.get_expression_type () == HIR::Expr::ExprType::Block;
 
   // in order to compile a block expr we want to reuse as much existing
   // machineary that we already have. This means the best approach is to
@@ -789,14 +790,14 @@ HIRCompileBase::compile_constant_item (
   TREE_READONLY (fndecl) = 1;
 
   tree enclosing_scope = NULL_TREE;
-  location_t start_location = const_value_expr->get_locus ();
-  location_t end_location = const_value_expr->get_locus ();
+  location_t start_location = const_value_expr.get_locus ();
+  location_t end_location = const_value_expr.get_locus ();
   if (is_block_expr)
     {
-      HIR::BlockExpr *function_body
-	= static_cast<HIR::BlockExpr *> (const_value_expr);
-      start_location = function_body->get_locus ();
-      end_location = function_body->get_end_locus ();
+      HIR::BlockExpr &function_body
+	= static_cast<HIR::BlockExpr &> (const_value_expr);
+      start_location = function_body.get_locus ();
+      end_location = function_body.get_end_locus ();
     }
 
   tree code_block = Backend::block (fndecl, enclosing_scope, {} /*locals*/,
@@ -814,17 +815,17 @@ HIRCompileBase::compile_constant_item (
 
   if (is_block_expr)
     {
-      HIR::BlockExpr *function_body
-	= static_cast<HIR::BlockExpr *> (const_value_expr);
-      compile_function_body (fndecl, *function_body, resolved_type);
+      HIR::BlockExpr &function_body
+	= static_cast<HIR::BlockExpr &> (const_value_expr);
+      compile_function_body (fndecl, function_body, resolved_type);
     }
   else
     {
       tree value = CompileExpr::Compile (const_value_expr, ctx);
 
       tree return_expr
 	= Backend::return_statement (fndecl, value,
-				     const_value_expr->get_locus ());
+				     const_value_expr.get_locus ());
       ctx->add_statement (return_expr);
     }
 

diff --git a/gcc/rust/backend/rust-compile-base.h b/gcc/rust/backend/rust-compile-base.h
@@ -92,7 +92,7 @@ class HIRCompileBase
 
   tree compile_constant_item (TyTy::BaseType *resolved_type,
 			      const Resolver::CanonicalPath &canonical_path,
-			      HIR::Expr *const_value_expr, location_t locus);
+			      HIR::Expr &const_value_expr, location_t locus);
 
   tree compile_function (const std::string &fn_name, HIR::SelfParam &self_param,
 			 std::vector<HIR::FunctionParam> &function_params,

diff --git a/gcc/rust/backend/rust-compile-block.cc b/gcc/rust/backend/rust-compile-block.cc
@@ -28,10 +28,10 @@ CompileBlock::CompileBlock (Context *ctx, Bvariable *result)
 {}
 
 tree
-CompileBlock::compile (HIR::BlockExpr *expr, Context *ctx, Bvariable *result)
+CompileBlock::compile (HIR::BlockExpr &expr, Context *ctx, Bvariable *result)
 {
   CompileBlock compiler (ctx, result);
-  compiler.visit (*expr);
+  compiler.visit (expr);
   return compiler.translated;
 }
 
@@ -60,10 +60,10 @@ CompileBlock::visit (HIR::BlockExpr &expr)
 
   if (expr.has_expr ())
     {
-      tree compiled_expr = CompileExpr::Compile (expr.expr.get (), ctx);
+      tree compiled_expr = CompileExpr::Compile (expr.get_final_expr (), ctx);
       if (result != nullptr)
 	{
-	  location_t locus = expr.get_final_expr ()->get_locus ();
+	  location_t locus = expr.get_final_expr ().get_locus ();
 	  tree result_reference = Backend::var_expression (result, locus);
 
 	  tree assignment
@@ -93,10 +93,8 @@ CompileConditionalBlocks::visit (HIR::IfExpr &expr)
 {
   fncontext fnctx = ctx->peek_fn ();
   tree fndecl = fnctx.fndecl;
-  tree condition_expr
-    = CompileExpr::Compile (expr.get_if_condition ().get (), ctx);
-  tree then_block
-    = CompileBlock::compile (expr.get_if_block ().get (), ctx, result);
+  tree condition_expr = CompileExpr::Compile (expr.get_if_condition (), ctx);
+  tree then_block = CompileBlock::compile (expr.get_if_block (), ctx, result);
 
   translated = Backend::if_statement (fndecl, condition_expr, then_block, NULL,
 				      expr.get_locus ());
@@ -107,23 +105,20 @@ CompileConditionalBlocks::visit (HIR::IfExprConseqElse &expr)
 {
   fncontext fnctx = ctx->peek_fn ();
   tree fndecl = fnctx.fndecl;
-  tree condition_expr
-    = CompileExpr::Compile (expr.get_if_condition ().get (), ctx);
-  tree then_block
-    = CompileBlock::compile (expr.get_if_block ().get (), ctx, result);
+  tree condition_expr = CompileExpr::Compile (expr.get_if_condition (), ctx);
+  tree then_block = CompileBlock::compile (expr.get_if_block (), ctx, result);
 
   // else block
   std::vector<Bvariable *> locals;
-  location_t start_location = expr.get_else_block ()->get_locus ();
-  location_t end_location = expr.get_else_block ()->get_locus (); // FIXME
+  location_t start_location = expr.get_else_block ().get_locus ();
+  location_t end_location = expr.get_else_block ().get_locus (); // FIXME
   tree enclosing_scope = ctx->peek_enclosing_scope ();
   tree else_block = Backend::block (fndecl, enclosing_scope, locals,
 				    start_location, end_location);
   ctx->push_block (else_block);
 
   tree else_stmt_decl
-    = CompileExprWithBlock::compile (expr.get_else_block ().get (), ctx,
-				     result);
+    = CompileExprWithBlock::compile (&expr.get_else_block (), ctx, result);
 
   ctx->add_statement (else_stmt_decl);
 

diff --git a/gcc/rust/backend/rust-compile-block.h b/gcc/rust/backend/rust-compile-block.h
@@ -28,7 +28,7 @@ namespace Compile {
 class CompileBlock : private HIRCompileBase
 {
 public:
-  static tree compile (HIR::BlockExpr *expr, Context *ctx, Bvariable *result);
+  static tree compile (HIR::BlockExpr &expr, Context *ctx, Bvariable *result);
 
 protected:
   void visit (HIR::BlockExpr &expr);
@@ -135,7 +135,7 @@ class CompileExprWithBlock : public HIRCompileBase,
 
   void visit (HIR::BlockExpr &expr) override
   {
-    translated = CompileBlock::compile (&expr, ctx, result);
+    translated = CompileBlock::compile (expr, ctx, result);
   }
 
   // Empty visit for unused Expression HIR nodes.