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2025-05-27ast: Add ConstBlock and AnonConst nodesArthur Cohen8-23/+196
gcc/rust/ChangeLog: * ast/rust-expr.h: Declare AnonConst and ConstBlock and use them. * ast/rust-ast-full-decls.h: Likewise. * ast/rust-ast.cc: Add implementation for AnonConst and ConstBlock. * ast/rust-ast.h: Likewise. * ast/rust-ast-collector.cc (TokenCollector::visit): Likewise. * ast/rust-ast-collector.h: Likewise. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise. * ast/rust-ast-visitor.h: Likewise. * expand/rust-derive.h: Likewise. * hir/rust-ast-lower-base.cc (ASTLoweringBase::visit): Likewise. * hir/rust-ast-lower-base.h: Likewise. * hir/rust-ast-lower-expr.cc (translate_operand_const): Likewise. * resolve/rust-ast-resolve-base.cc (ResolverBase::visit): Likewise. * resolve/rust-ast-resolve-base.h: Likewise. * resolve/rust-ast-resolve-expr.h: Likewise. * resolve/rust-ast-resolve-expr.cc: Likewise.
2025-05-15Small improvements to DefaultASTVisitor and nr2.0Owen Avery2-5/+6
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Only visit the path of an instance of Visibility if the instance has a path. * ast/rust-ast.h (SimplePath::SimplePath): Make sure constructors are explicit. * resolve/rust-early-name-resolver-2.0.cc (Early::visit_attributes): Pass entire paths to NameResolutionContext::resolve_path. (Early::visit): Likewise and avoid copying a path. * resolve/rust-forever-stack.hxx (ForeverStack::resolve_path): Assert that at least one path segment has been passed in. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-05-14gccrs: remove unused fileMarc Poulhiès1-25/+0
gcc/rust/ChangeLog: * Make-lang.in (GRS_OBJS): Remove rust-macro.o. * ast/rust-macro.cc: Removed. Signed-off-by: Marc Poulhiès <dkm@kataplop.net>
2025-05-08nr2.0: Adjust resolution of impl itemsOwen Avery2-0/+23
gcc/rust/ChangeLog: * ast/rust-path.cc (TypePath::make_debug_string): Add definition. * ast/rust-path.h (TypePath::make_debug_string): Add declaration. * resolve/rust-default-resolver.cc (DefaultResolver::visit): Adjust InherentImpl and TraitImpl visitors to better handle associated item scope. * resolve/rust-default-resolver.h (DefaultResolver::maybe_insert_big_self): Add. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Adjust type path resolution errors. * resolve/rust-rib.h (Rib::Kind): Add Generics kind. * resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Remove InherentImpl and TraitImpl visitor overrides. (TopLevel::maybe_insert_big_self): Add override in order to add a definition of 'Self'. * resolve/rust-toplevel-name-resolver-2.0.h (TopLevel::visit): Remove InherentImpl and TraitImpl visitor overrides. (TopLevel::maybe_insert_big_self): Add override. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove entries. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-05-08ast: collector: visit InlineAsm node during ast dump0xn4utilus3-18/+125
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Implement for InlineAsm. * ast/rust-ast-full-decls.h (enum class): Move InlineAsmOption enum inside InlineAsm. * ast/rust-expr.h (enum class): Likewise. (class InlineAsm): Likewise. * expand/rust-macro-builtins-asm.cc (check_and_set): Likewise. (parse_options): Likewise. * expand/rust-macro-builtins-asm.h (check_and_set): Likewise. * hir/tree/rust-hir-expr.cc (InlineAsm::InlineAsm): Likewise. * hir/tree/rust-hir-expr.h: Likewise. * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit): Likewise.
2025-05-08gccrs: Prevent passing generic arguments to impl traits in argument positionPhilip Herron2-17/+14
When using impl traits in argument position (APIT), they are desugared into generics, and supplying explicit generic arguments is not allowed. This commit adds the error diagnostic E0632 for attempting to pass generic arguments to impl traits, completing the implementation of the APIT feature. gcc/rust/ChangeLog: * ast/rust-desugar-apit.cc: track if this is a impl-trait generic * ast/rust-item.h (class TypeParam): add field to track if from impl trait * hir/rust-ast-lower-type.cc (ASTLowerGenericParam::visit): likewise * hir/tree/rust-hir-item.cc (TypeParam::TypeParam): upate hir as well (TypeParam::operator=): likewise * hir/tree/rust-hir-item.h (class TypeParam): likewise * typecheck/rust-tyty-subst.cc (SubstitutionParamMapping::get_generic_param): add error * typecheck/rust-tyty-subst.h: add const getter for the associated TypeParm gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 cant handle this * rust/compile/impl_trait_generic_arg.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-05-07nr2.0: Adjust enum item visitorsOwen Avery3-3/+30
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Make call to EnumItem visitor from EnumItem derived class visitors non-virtual. * ast/rust-collect-lang-items.cc (CollectLangItems::visit): Handle visitation of classes derived from EnumItem. * ast/rust-collect-lang-items.h (CollectLangItems::visit): Likewise. * resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Call DefaultResolver::visit on EnumItem instances. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-05-07gccrs: desugar APIT impl traitsPhilip Herron5-20/+593
Argument position impl traits are simply syntatic sugar for generics. This adds a new desugar pass to do this. So for example: fn foo(a: impl Value, b: impl Value) -> i32 Is desugared into: fn foo<T: Value, U: Value> (a: T, b: U) -> i32 So it just works like any normal generic function. There are more complex cases such as: fn foo(_value: impl Bar<Baz = impl Foo>) -> i32 Which has a generic argument binding which needs to be turned into a where constraint: fn foo<T, U>(_value: T) -> i32 where T: Bar<Baz = U>, U: Foo, Fixes Rust-GCC#2015 Fixes Rust-GCC#1487 Fixes Rust-GCC#3454 Fixes Rust-GCC#1482 gcc/rust/ChangeLog: * Make-lang.in: new desugar file * ast/rust-ast.cc (ImplTraitTypeOneBound::as_string): its a unique_ptr now (FormatArgs::set_outer_attrs): reformat * ast/rust-path.h: remove has_generic_args assertion (can be empty because of desugar) * ast/rust-type.h (class ImplTraitTypeOneBound): add copy ctor and use unique_ptr * hir/rust-ast-lower-type.cc (ASTLoweringType::visit): update to use unique_ptr * parse/rust-parse-impl.h (Parser::parse_type): reuse the existing unique_ptr instead (Parser::parse_type_no_bounds): likewise (Parser::parse_pattern): likewise * resolve/rust-ast-resolve-type.cc (ResolveType::visit): its a unique_ptr now * rust-session-manager.cc (Session::compile_crate): call desugar * ast/rust-desugar-apit.cc: New file. * ast/rust-desugar-apit.h: New file. gcc/testsuite/ChangeLog: * rust/compile/issue-2015.rs: fully supported now * rust/compile/nr2/exclude: nr2 cant handle some of these * rust/compile/issue-1487.rs: New test. * rust/compile/issue-3454.rs: New test. * rust/execute/torture/impl_desugar-2.rs: New test. * rust/execute/torture/impl_desugar.rs: New test. * rust/execute/torture/impl_trait1.rs: New test. * rust/execute/torture/impl_trait2.rs: New test. * rust/execute/torture/impl_trait3.rs: New test. * rust/execute/torture/impl_trait4.rs: New test. * rust/execute/torture/issue-1482.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-05-02ast: builder: Allow building struct ident patternsArthur Cohen2-0/+12
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::struct_pattern_ident_pattern): New. * ast/rust-ast-builder.h: New declaration.
2025-04-28Visit visibility in UseDeclarationPierre-Emmanuel Patry1-0/+1
Default visitor should visit all it's children. gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Visit visibility. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-28Some assorted tweaks and bug fixesOwen Avery1-1/+1
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Visit the loop labels of WhileLetLoopExpr instances before visiting their scrutinee expressions. * resolve/rust-early-name-resolver-2.0.cc (Early::resolve_glob_import): Pass the glob import's path directly to NameResolutionContext::resolve_path. * resolve/rust-toplevel-name-resolver-2.0.cc (TopLevel::visit): Remove unnecessary call to Identifier::as_string. (flatten_glob): Improve handling of cases where a glob use tree has no path. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-04-24Use specialized param visit function for paramsPierre-Emmanuel Patry2-2/+12
This commit introduce a new public function to visit function parameters in the default visitor. It allows visitors derived from DefaultVisitor to override only a small part of the default visitor. gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit_function_params): Add specialized function to visit function parameters. (DefaultASTVisitor::visit): Remove parameter visit and call specialized function instead. * ast/rust-ast-visitor.h: Add function prototye. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Remove function. (Late::visit_function_params): Override specialized visit function. * resolve/rust-late-name-resolver-2.0.h: Add overriden function prototype. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-24Add hash function for IdentifiersPierre-Emmanuel Patry1-0/+13
gcc/rust/ChangeLog: * ast/rust-ast.h: Add hash function. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-24Add equality operator for identifiersPierre-Emmanuel Patry1-0/+5
gcc/rust/ChangeLog: * ast/rust-ast.h: Add equality operator. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-24Remove error state for GenericArgPierre-Emmanuel Patry4-25/+11
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Remove error kind and change function call. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Change call name. * ast/rust-path.cc (ConstGenericParam::as_string): Likewise. * ast/rust-path.h: Remove error kind. * hir/rust-ast-lower-type.cc (ASTLowerGenericParam::visit): Change call name. * parse/rust-parse-impl.h (Parser::parse_generic_param): Use optional on parsing failure. (Parser::parse_generic_arg): Likewise. (Parser::parse_path_generic_args): Likewise. * parse/rust-parse.h: Likewise. * resolve/rust-ast-resolve-type.h: Change call name. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-18gccrs: Fix ICE with empty generic argumentsPhilip Herron1-1/+2
We have an assertion when accessing generic args if there are any which is really useful so this adds the missing guards for the case where they are specified but empty. Fixes Rust-GCC#3649 gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): add guard * expand/rust-expand-visitor.cc (ExpandVisitor::visit): add guard gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 is missing error for this * rust/compile/issue-3649.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-04-17Add LlvmInlineAsm node dumpPierre-Emmanuel Patry1-1/+38
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Dump llvm inline asm tokens. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-17Parse and lower llvm asm nodePierre-Emmanuel Patry3-15/+62
Add a new HIR LlvmInlineAsm HIR node as well as some structures to represent it's options and operands. Lower AST::LlvmInlineAsm node to it and then create a tree from that node. gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Remove unreachable code. * ast/rust-expr.h (struct LlvmOperand): Add LlvmOperand struct to represent input and outputs. (class LlvmInlineAsm): Add input, output and clobber operands. (struct TupleTemplateStr): Add locus getter. * backend/rust-compile-block.h: Add visit for LlvmInlineAsm. * backend/rust-compile-expr.cc (CompileExpr::visit): Add llvm inline asm stmt compilation. * backend/rust-compile-expr.h: Add function prototype. * backend/rust-compile-asm.h (class CompileLlvmAsm): Add llvm asm hir not to gimple. * backend/rust-compile-asm.cc (CompileLlvmAsm::CompileLlvmAsm): Add constructor. (CompileLlvmAsm::construct_operands): Add function to construct operand tree. (CompileLlvmAsm::construct_clobbers): Add function to construct clobber tree. (CompileLlvmAsm::tree_codegen_asm): Generate the whole tree for a given llvm inline assembly node. * checks/errors/borrowck/rust-bir-builder-expr-stmt.cc (ExprStmtBuilder::visit): Add visit function. * checks/errors/borrowck/rust-bir-builder-expr-stmt.h: Add function prototype. * checks/errors/borrowck/rust-bir-builder-lazyboolexpr.h: Add visit function. * checks/errors/borrowck/rust-bir-builder-struct.h: Likewise. * checks/errors/borrowck/rust-function-collector.h: Likewise. * checks/errors/privacy/rust-privacy-reporter.cc (PrivacyReporter::visit): Likewise. * checks/errors/privacy/rust-privacy-reporter.h: Add visit function prototype. * checks/errors/rust-const-checker.cc (ConstChecker::visit): Add visit function. * checks/errors/rust-const-checker.h: Add visit function prototype. * checks/errors/rust-hir-pattern-analysis.cc (PatternChecker::visit): Add visit function. * checks/errors/rust-hir-pattern-analysis.h: Add visit function prototype. * checks/errors/rust-unsafe-checker.cc (UnsafeChecker::visit): Add visit function. * checks/errors/rust-unsafe-checker.h: Add function prototype. * expand/rust-macro-builtins-asm.cc (parse_llvm_templates): Parse templates. (parse_llvm_arguments): Add function to parse non template tokens. (parse_llvm_operands): Add function to parse operands, either input or output. (parse_llvm_outputs): Add function to parse and collect llvm asm outputs. (parse_llvm_inputs): Likewise with inputs. (parse_llvm_clobbers): Add function to parse llvm asm clobbers. (parse_llvm_options): Add function to parse llvm asm options. (parse_llvm_asm): Add function to parse llvm asm. * expand/rust-macro-builtins-asm.h (class LlvmAsmContext): Add context for llvm asm parser. (parse_llvm_outputs): Add function prototype. (parse_llvm_inputs): Likewise. (parse_llvm_clobbers): Likewise. (parse_llvm_options): Likewise. * hir/rust-ast-lower-expr.cc (ASTLoweringExpr::visit): Lower AST llvm asm node to HIR. * hir/rust-ast-lower-expr.h: Add function prototype. * hir/rust-hir-dump.cc (Dump::visit): Add visit function. * hir/rust-hir-dump.h: Add function prototype. * hir/tree/rust-hir-expr-abstract.h: Add HIR llvm asm node kind. * hir/tree/rust-hir-expr.h (struct LlvmOperand): Add LlvmOperand type to represent input and outputs. (class LlvmInlineAsm): Add LlvmInlineAsm hir node. * hir/tree/rust-hir-full-decls.h (class LlvmInlineAsm): Add LlvmInlineAsm hir node forward declaration. * hir/tree/rust-hir-visitor.h: Add visit functions for LlvmInlineAsm hir node. * hir/tree/rust-hir.cc (LlvmInlineAsm::accept_vis): Add hir node visitor related functions. * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit): Type check input and output operands. * typecheck/rust-hir-type-check-expr.h: Add function prototype. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Visit input and output operand expressions. * resolve/rust-ast-resolve-expr.cc (ResolveExpr::visit): Resolve input and output expressions. * resolve/rust-ast-resolve-expr.h: Add function prototypes. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-17Add llvmInlineAsm nodePierre-Emmanuel Patry7-1/+71
InlineAsm node does not support memory clobbers. gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Make visitor unreachable. * ast/rust-ast-collector.h: Add visit for LlvmInlineAsmNode. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Add visit function for the default ast visitor. * ast/rust-ast-visitor.h: Add function prototype. * ast/rust-ast.cc (LlvmInlineAsm::accept_vis): Add accept_vis to LlvmInlineAsm node. * ast/rust-ast.h: Add LlvmInlineAsm node kind. * ast/rust-expr.h (class LlvmInlineAsm): Add LlvmInlineAsm node. * expand/rust-derive.h: Add visit function for LlvmInlineAsm node. * expand/rust-macro-builtins-asm.cc (MacroBuiltin::llvm_asm_handler): Add handler for llvm inline assembly nodes. (parse_llvm_asm): Add function to parse llvm assembly nodes. * expand/rust-macro-builtins-asm.h (parse_llvm_asm): Add function prototypes. * expand/rust-macro-builtins.cc (inline_llvm_asm_maker): Add macro transcriber. * expand/rust-macro-builtins.h: Add transcriber function prototype. * hir/rust-ast-lower-base.cc (ASTLoweringBase::visit): Add visit function for LlvmInlineAsm node. * hir/rust-ast-lower-base.h: Add visit function prototype. * resolve/rust-ast-resolve-base.cc (ResolverBase::visit): Add visit function for LlvmInlineAsm node. * resolve/rust-ast-resolve-base.h: Add visit function prototype. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-14ast: Add get_locus() to DelimTokenTreeArthur Cohen1-0/+1
gcc/rust/ChangeLog: * ast/rust-ast.h (DelimTokenTree::get_locus): New function.
2025-04-14ast: Support outer attributes for AST::RangeExprArthur Cohen1-6/+6
gcc/rust/ChangeLog: * ast/rust-expr.h (class RangeExpr): Add empty outer attributes and allow getting them and setting them.
2025-04-07gccrs: fix ICE segfault with empty feature gateMatty Kuhn1-0/+3
This patch fixes an issue where an empty feature gate would segfault, instead of reporting a syntax error to the user. gcc/rust/ChangeLog: * ast/rust-ast.h: (AST::Attribute): add empty_input function * checks/errors/rust-feature-gate.cc: (FeatureGate::visit): check for empty feature gate gcc/testsuite/ChangeLog: * rust/compile/feature.rs: add an invalid empty feature to produce an error Signed-off-by: Matty Kuhn <matty.kuhn.1@gmail.com>
2025-04-07Rename label getter to uncheckedPierre-Emmanuel Patry4-5/+8
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Update label getter call. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise. * ast/rust-ast.cc (BreakExpr::as_string): Likewise. * hir/rust-ast-lower-expr.cc (ASTLoweringExpr::visit): Likewise. * resolve/rust-ast-resolve-expr.cc (ResolveExpr::visit): Likewise. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Likewise. * ast/rust-expr.h: Add optional getter and rename label getter to get_label_unchecked. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Rename label getter in ContinueExprPierre-Emmanuel Patry4-5/+8
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Call unchecked getter. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise. * ast/rust-ast.cc (ContinueExpr::as_string): Likewise. * hir/rust-ast-lower-expr.cc (ASTLoweringExpr::visit): Likewise. * resolve/rust-ast-resolve-expr.cc (ResolveExpr::visit): Likewise. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Likewise. * ast/rust-expr.h: Add new getter for the optional and rename getter to get_label_unchecked. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Migrate error state to optionalsPierre-Emmanuel Patry8-45/+32
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::self_ref_param): Remove error state and use optional. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Check label before visiting. * ast/rust-ast.cc (ContinueExpr::as_string): Retrieve label value. (Lifetime::as_string): Retrieve lifetime value. (ReferenceType::as_string): Likewise. (SelfParam::as_string): Likewise. * ast/rust-ast.h: Remove lifetime and LifetimeParam error state. * ast/rust-desugar-for-loops.cc (DesugarForLoops::DesugarCtx::make_break_arm): Use optional instead of error state. * ast/rust-expr.h (class ContinueExpr): Make label optional. * ast/rust-item.h (class SelfParam): Make lifetime optional. * ast/rust-type.h (class ReferenceType): Likewise. * backend/rust-compile-base.cc: Use optional for self param instead of error state. * backend/rust-compile-base.h: Update function prototype. * expand/rust-derive-clone.cc (DeriveClone::clone_fn): Use optional. * hir/rust-ast-lower-base.cc (ASTLoweringBase::lower_self): Lower lifetime only if it exists. * hir/rust-ast-lower-block.h: Lower loop label only if it exists. * hir/rust-ast-lower-expr.cc (ASTLoweringExpr::visit): Likewise. * hir/rust-ast-lower-implitem.cc (ASTLowerImplItem::visit): Remove references to error state. (ASTLowerTraitItem::visit): Lower self param only if it exists. * hir/rust-ast-lower-item.cc (ASTLoweringItem::visit): Use nullopt for default value instead of SelfParam error state. * hir/rust-ast-lower.cc (ASTLoweringExprWithBlock::visit): Lower label only if it exists. * hir/rust-hir-dump.cc (Dump::do_traitfunctiondecl): Print self only if it exists. (Dump::visit): Liewise. * hir/tree/rust-hir-bound.h: Remove error state. * hir/tree/rust-hir-expr.cc (ContinueExpr::ContinueExpr): Use optional in constructor for loop label. (BreakExpr::BreakExpr): Likewise. * hir/tree/rust-hir-expr.h (class ContinueExpr): Remove error state implementation. (class BreakExpr): Likewise. * hir/tree/rust-hir-generic-param.h: Likewise. * hir/tree/rust-hir-item.cc (SelfParam::SelfParam): Make lifetime optional. (Function::Function): Make self param optional. * hir/tree/rust-hir-item.h (class Function): Likewise. * hir/tree/rust-hir-type.cc (ReferenceType::ReferenceType): Make lifetime optional. * hir/tree/rust-hir-type.h (class ReferenceType): Likewise. * hir/tree/rust-hir.cc (ContinueExpr::as_string): Use new getter. (BreakExpr::as_string): Likewise. (Lifetime::as_string): Likewise. (ReferenceType::as_string): Likewise. (TraitFunctionDecl::as_string): Likewise. (SelfParam::as_string): Remove error state checking. * parse/rust-parse-impl.h (Parser::parse_generic_param): Adapt to optional. (Parser::parse_lifetime_params): Likewise. (Parser::parse_lifetime_params_objs): Likewise. (Parser::parse_lifetime_param): Likewise. (Parser::parse_lifetime_where_clause_item): Likewise. (Parser::parse_type_param_bound): Likewise. (Parser::parse_lifetime_bounds): Likewise. (Parser::parse_path_generic_args): Likewise. (Parser::parse_self_param): Likewise. (Parser::parse_break_expr): Likewise. (Parser::parse_continue_expr): Likewise. (Parser::parse_reference_type_inner): Likewise. * parse/rust-parse.h (class ParseLifetimeParamError): Add new class for lifetime param parsing errors. (class ParseLifetimeError): Add new class for lifetime parsing errors. (enum ParseSelfError): Add new class for self param parsing errors. * typecheck/rust-hir-type-check-implitem.cc (TypeCheckImplItem::visit): Use unchecked getter in checked context. And make anonymous region. * typecheck/rust-hir-type-check.cc (TraitItemReference::get_type_from_fn): Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Update ast visitor with proper check for looplabelPierre-Emmanuel Patry1-1/+2
The visitor was visiting loop label even when they did not exist. gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Add check for loop label before visiting it. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Remove unused error constructor and getterPierre-Emmanuel Patry1-5/+0
These constructor for eroneous state are not in use anymore since we replaced this error state with an optional in the parent nodes. gcc/rust/ChangeLog: * ast/rust-expr.h: Remove error getter and constructor. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Make loop label truly optionalPierre-Emmanuel Patry3-24/+27
A loop label error state was in use to represent missing loop label but this may be easily forgotten and the optional nature of the label was misrepresented. gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::block): Call with a nullopt instead of an error loop label. (WhileLetLoopExpr::as_string): Use getter function and adapt to newtype. * ast/rust-ast.cc (WhileLoopExpr::as_string): Likewise. (LoopExpr::as_string): Likewise. (BreakExpr::as_string): Likewise. (ForLoopExpr::as_string): Likewise. * ast/rust-expr.h (class BlockExpr): Make loop label optional. (class BreakExpr): Likewise. * expand/rust-derive-clone.cc (DeriveClone::clone_fn): Use nullopt. * expand/rust-derive-debug.cc (DeriveDebug::stub_debug_fn): Likewise. * expand/rust-derive-default.cc (DeriveDefault::default_fn): Likewise. * expand/rust-derive-eq.cc: Likewise. * parse/rust-parse-impl.h (Parser::parse_block_expr): Use optional for arguments. (Parser::parse_loop_expr): Likewise. (Parser::parse_while_loop_expr): Likewise. (Parser::parse_while_let_loop_expr): Likewise. (Parser::parse_for_loop_expr): Likewise. (Parser::parse_labelled_loop_expr): Likewise. (Parser::parse_loop_label): Return an optional. * parse/rust-parse.h: Update function prototype and use nullopt for default values. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Visit loop label before predicate expressionPierre-Emmanuel Patry1-1/+1
If the label is referenced within the while predicate expression it has to be resolved before the latter. gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Change default visit order. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove test from exclusion list. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-07Add check for labelPierre-Emmanuel Patry1-1/+2
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Visit loop label only if it exists. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove passing test. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-04-04nr2.0: Remove duplicate self visitOwen Avery1-2/+0
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Remove explicit visitation of a function's self parameter, as if it exists it'll be visited as one of the function parameters. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove entry. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-04-04hir: Add default qualifier to function, lower it properlyArthur Cohen2-5/+7
gcc/rust/ChangeLog: * ast/rust-ast.cc (Function::Function): Rename is_default -> has_default. (Function::operator=): Likewise. * ast/rust-item.h (class Function): Add `is_default` method. * hir/rust-ast-lower-implitem.cc (ASTLowerImplItem::visit): Lower default qualifier. * hir/rust-ast-lower-item.cc (ASTLoweringItem::visit): Likewise. * hir/tree/rust-hir-item.cc (Function::Function): Add `is_default` member. (Function::operator=): Likewise. * hir/tree/rust-hir-item.h (enum class Defaultness): New enum. (class Function): Use it. gcc/testsuite/ChangeLog: * rust/compile/min_specialization1.rs: New test.
2025-03-25dump: Handle let-else properlyArthur Cohen1-0/+8
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Add handling for diverging else expression.
2025-03-25ast: Add optional diverging else to AST::LetStmtArthur Cohen2-2/+30
gcc/rust/ChangeLog: * ast/rust-stmt.h (class LetStmt): Add optional expression for diverging else. * ast/rust-ast-builder.cc (Builder::let): Use new API.
2025-03-20nr2.0: Adjust visitors for struct expressionsOwen Avery1-0/+2
gcc/rust/ChangeLog: * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Make sure to always visit the struct name. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Avoid visiting the struct name twice. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove entries. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-03-05Reduce usage of rust-session-manager.hOwen Avery1-1/+0
gcc/rust/ChangeLog: * util/rust-edition.cc: New file. * util/rust-edition.h: New file. * Make-lang.in: Add rust-edition.o to the object list. * ast/rust-pattern.cc: Remove inclusion of rust-session-manager.h. * expand/rust-macro-expand.cc: Likewise. * expand/rust-macro-builtins-helpers.h: Likewise. * expand/rust-macro-builtins-include.cc: Include rust-session-manager.h. * expand/rust-macro-builtins-utility.cc: Likewise. * lex/rust-lex.cc: Include rust-edition.h instead of rust-session-manager.h. (Lexer::classify_keyword): Use get_rust_edition instead of Session and CompileOptions. * parse/rust-parse-impl.h: Include rust-edition.h instead of rust-session-manager.h. (Parser::parse_async_item): Use get_rust_edition instead of Session and CompileOptions. * checks/errors/rust-feature.h: Include rust-edition.h instead of rust-session-manager.h. (class Feature): Use Rust::Edition instead of Rust::CompileOptions::Edition. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-02-26ast: Add base for desugaring try expressionsArthur Cohen2-0/+246
gcc/rust/ChangeLog: * Make-lang.in: Compile it. * ast/rust-desugar-question-mark.cc: New file. * ast/rust-desugar-question-mark.h: New file. gcc/testsuite/ChangeLog: * rust/compile/try-expr1.rs: New test.
2025-02-24ast: builder: Add new builder methodsArthur Cohen2-7/+56
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::statementify): New. (Builder::function): Add generic params optional argument. (Builder::path_in_expression): Add opening_scope_resolution optional argument. (Builder::block): Add function for creating empty blocks. (Builder::generic_type_param): New. * ast/rust-ast-builder.h (ptrify): New.
2025-02-24Remove some member functions from SingleASTNodeOwen Avery1-17/+0
gcc/rust/ChangeLog: * ast/rust-ast.h (SingleASTNode::take_trait_item): Remove. (SingleASTNode::take_impl_item): Remove. (SingleASTNode::take_trait_impl_item): Remove. * expand/rust-expand-visitor.cc (ExpandVisitor::visit): Replace calls to aforementioned functions with calls to SingleASTNode::take_assoc_item. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-02-23Remove PathInExpression::get_pattern_node_idOwen Avery1-2/+0
gcc/rust/ChangeLog: * ast/rust-path.h (PathInExpression::get_pattern_node_id): Remove. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-02-20ast-builder: Add new methods for creating operator expressionsArthur Cohen2-0/+66
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::literal_bool): New method. (Builder::comparison_expr): Likewise. (Builder::boolean_operation): Likewise. * ast/rust-ast-builder.h: Declare them.
2025-02-20ast-builder: Improve function generation.Arthur Cohen2-17/+17
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::block): Change return type. (Builder::loop): Use new APIs. * ast/rust-ast-builder.h: Change return type of block functions.
2025-02-04ast: Add DesugarForLoop classArthur Cohen2-0/+312
gcc/rust/ChangeLog: * ast/rust-desugar-for-loops.cc: New file. * ast/rust-desugar-for-loops.h: New file. * hir/rust-ast-lower-expr.cc (ASTLoweringExpr::visit): Make lowering of for-loops an unreachable. * Make-lang.in: Compile it. gcc/testsuite/ChangeLog: * rust/compile/for-loop1.rs: New test. * rust/compile/for-loop2.rs: New test. * rust/execute/torture/for-loop1.rs: New test. * rust/execute/torture/for-loop2.rs: New test. * rust/compile/nr2/exclude: Exclude for-loop1.rs
2025-02-04ast: builder: Fix arguments of Builder::letArthur Cohen2-5/+5
gcc/rust/ChangeLog: * ast/rust-ast-builder.h: Mark all arguments as &&. * ast/rust-ast-builder.cc (Builder::let): Likewise.
2025-02-04ast-builder: Add methods for QualifiedPathInExpressionsArthur Cohen2-8/+40
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::qualified_path_in_expression): New. (Builder::function): Change the return type. * ast/rust-ast-builder.h: Declare qualified_path_in_expression functions. * expand/rust-derive-debug.cc (DeriveDebug::stub_debug_fn): Adapt to new APIs.
2025-02-02ast: builder: Add Return expression builderArthur Cohen2-0/+11
gcc/rust/ChangeLog: * ast/rust-ast-builder.h: Declare it. * ast/rust-ast-builder.cc (Builder::return_expr): Define it.
2025-02-02ast-builder: Add new methods for functions, traits and tuples.Arthur Cohen2-2/+96
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc: New methods. * ast/rust-ast-builder.h: Declare them.
2025-02-02ast-builder: Add new functions to create type paths.Arthur Cohen2-1/+24
gcc/rust/ChangeLog: * ast/rust-ast-builder.cc (Builder::type_path): New functions. * ast/rust-ast-builder.h: Declare them.
2025-01-30ast: Add new Expr::KindsArthur Cohen2-0/+41
Collapses all of the OperatorExprs into Expr instead of first having to check for OperatorExpr and then check for each OperatorExpr::Kind. gcc/rust/ChangeLog: * ast/rust-ast.h: Add new Expr::Kinds. * ast/rust-expr.h: Implement missing get_expr_kind(), Add get_function_expr_ptr()
2025-01-28ast: Add Path::is_lang_item()Arthur Cohen1-0/+2
gcc/rust/ChangeLog: * ast/rust-path.h: New function.
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