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2025-02-04gccrs: Add test case to show issue is fixedPhilip Herron3-0/+48
This was fixed as part of: c63ecb2f032 Fixes Rust-GCC#3402 gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 cant handle this * rust/compile/issue-3402-1.rs: New test. * rust/compile/issue-3402-2.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-04derive(Default): Add implementationArthur Cohen7-0/+290
gcc/rust/ChangeLog: * expand/rust-derive.cc (DeriveVisitor::derive): Call DeriveDefault. * expand/rust-derive-default.cc: New file. * expand/rust-derive-default.h: New file. * Make-lang.in: Compile them. gcc/testsuite/ChangeLog: * rust/compile/derive-default1.rs: New test. * rust/execute/torture/derive-default1.rs: New test. * rust/compile/nr2/exclude: Exclude them.
2025-02-04ast-builder: Add methods for QualifiedPathInExpressionsArthur Cohen3-10/+42
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.
2025-02-04gccrs: Fix compilation of trait-items which map to impl itemsPhilip Herron9-46/+129
When we have paths such as Try::from_error the Try references the Trait and then from_error references the from_error trait item. So this resolves directly to a trait implementation which has the type: fn <Self> (v: placeholder) -> Self Remember that a path such as: Try::from_error gets handled by doing a clever substitution: <T? as Try>::from_error The main piece here is that we resolve this function type and for monomoprhization we know this is a trait call but we know that all trait's have an implicit Self type param which in this case is Result<i32, i32> so when it comes to knowing which impl block this is we got rid of the old bad insert/lookup receiver hack and use the specified type to know which impl block we are talking about to generate the function. The hard part here is inside rust-compil-item.cc, where we have the 'concete' type which is the trait item fntype of: fn <Result<i32, i32>> (v : i32) -> Result<i32,i32> This does not really match the signiture of the impl item for Result which is: fn <T, E> (v: i32) -> Result<T, E> So what we need to do is actually infer this by inputing inference variables on the impl fntype then unify'ing the trait object to this to compute the types of this to monomorphize this. Fixes Rust-GCC#3381 gcc/rust/ChangeLog: * backend/rust-compile-expr.cc (CompileExpr::visit): remove receiver interface * backend/rust-compile-item.cc (CompileItem::visit): monomorphize trait to impl item * backend/rust-compile-resolve-path.cc (HIRCompileBase::query_compile): use trait item Self * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit): remove receiver interface (TypeCheckExpr::resolve_fn_trait_call): likewise * typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::visit): likewise (TypeCheckExpr::resolve_segments): likewise * typecheck/rust-hir-type-check-type.cc (TypeCheckType::visit): likewise * typecheck/rust-hir-type-check.h: likewise * typecheck/rust-typecheck-context.cc (TypeCheckContext::insert_receiver): remove (TypeCheckContext::lookup_receiver): remove gcc/testsuite/ChangeLog: * rust/execute/torture/issue-3381.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03gccrs: Fix bad generic substitution error on fn/adt typesPhilip Herron3-2/+68
When passing generics around we try to adjust them because there are cases where the names are adjusted from other generics this can fail for traits because of the implicit Self and we just need to continue on without adjustment. Fxies Rust-GCC#3382 gcc/rust/ChangeLog: * typecheck/rust-substitution-mapper.cc (SubstMapperInternal::visit): continue on for trait item mode. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 cant handle this. * rust/compile/issue-3382.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03gccrs: Fix crash in privay reporter for placeholder typesPhilip Herron1-4/+6
This guards against a crash but i think this should actually be treated as if its a generic type like below. But for now this addresses a crash which can occur. gcc/rust/ChangeLog: * checks/errors/privacy/rust-privacy-reporter.cc (PrivacyReporter::check_base_type_privacy): Add guard for placeholder Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03gccrs: coercion sites allow for type inference as well.Philip Herron2-3/+5
Addresses Rust-GCC#3382 and Rust-GCC#3381 gcc/rust/ChangeLog: * typecheck/rust-type-util.cc (coercion_site): allow inference vars gcc/testsuite/ChangeLog: * rust/compile/reference1.rs: fix error message Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03gccrs: Fix ICE during path probePhilip Herron1-6/+6
It is valid for the query to fail here so its valid to not assert here. gcc/rust/ChangeLog: * typecheck/rust-hir-path-probe.cc (PathProbeType::visit): remove assertion Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03gccrs: Fix ICE when fn_once and fn_once_output lang item is not definedPhilip Herron1-5/+17
We needed to check for the optional has a value here or not it leads to an ICE. gcc/rust/ChangeLog: * typecheck/rust-tyty.cc (ClosureType::setup_fn_once_output): add checks for lang items Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-02-03Fix bug in type resolution of pathsOwen Avery9-72/+128
gcc/rust/ChangeLog: * resolve/rust-early-name-resolver-2.0.cc (Early::resolve_glob_import): Use NameResolutionContext::resolve_path instead of ForeverStack::resolve_path. (Early::visit): Likewise. (Early::visit_attributes): Likewise. * resolve/rust-early-name-resolver-2.0.h (Early::resolve_path_in_all_ns): Likewise. * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Likewise, insert segment resolutions not handled by NameResolutionContext::resolve_path, and avoid throwing an error when path resolution could be finished by the typechecker. * resolve/rust-name-resolution-context.h (NameResolutionContext::resolve_path): Add. * typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::resolve_root_path): Use segment node ids instead of the path node id to look up segment resolutions when using the 2.0 resolver, as is done with the 1.0 resolver. * typecheck/rust-hir-type-check-type.cc (TypeCheckType::resolve_root_path): Likewise. * resolve/rust-forever-stack.h (ForeverStack::resolve_path): Add callback parameter for inserting segment resolutions. (ForeverStack::find_starting_point): Likewise. (ForeverStack::resolve_segments): Likewise. * resolve/rust-forever-stack.hxx (ForeverStack::find_starting_point): Likewise. (ForeverStack::resolve_segments): Likewise. (ForeverStack::resolve_path): Likewise and avoid resolving inside TraitOrImpl ribs. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove entries. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-02-03nr2.0: Remove accidental copies of resolverOwen Avery9-19/+19
gcc/rust/ChangeLog: * backend/rust-compile-expr.cc (CompileExpr::generate_closure_function): Take NameResolutionContext by reference instead of by value. * backend/rust-compile-item.cc (CompileItem::visit): Likewise. * backend/rust-compile-resolve-path.cc (ResolvePathRef::resolve): Likewise. * checks/lints/rust-lint-marklive.cc (MarkLive::find_ref_node_id): Likewise. * typecheck/rust-hir-type-check-enumitem.cc (TypeCheckEnumItem::visit): Likewise. * typecheck/rust-hir-type-check-implitem.cc (TypeCheckImplItem::visit): Likewise. * typecheck/rust-hir-type-check-item.cc (TypeCheckItem::visit): Likewise. * typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::resolve_root_path): Likewise. * typecheck/rust-hir-type-check-type.cc (TypeCheckType::resolve_root_path): Likewise. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
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.
2025-02-02derive(Debug): Add stub implementation.Arthur Cohen6-0/+234
gcc/rust/ChangeLog: * expand/rust-derive-debug.cc: New file. * expand/rust-derive-debug.h: New file. * Make-lang.in: Compile them. * expand/rust-derive.cc (DeriveVisitor::derive): Call into DeriveDebug. gcc/testsuite/ChangeLog: * rust/compile/derive-debug1.rs: New test. * rust/compile/nr2/exclude: Exclude it.
2025-02-02derive(Clone, Copy): Cleanup using new method from DeriveVisitorArthur Cohen2-163/+11
gcc/rust/ChangeLog: * expand/rust-derive-clone.cc: Cleanup using DeriveVisitor::setup_impl_generics. * expand/rust-derive-copy.cc: Likewise.
2025-02-02derive-visitor: Add method for setting up derived impl genericsArthur Cohen2-0/+97
gcc/rust/ChangeLog: * expand/rust-derive.cc (DeriveVisitor::setup_impl_generics): New method. * expand/rust-derive.h: Declare it, define DeriveVisitor::ImplGenerics struct.
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.
2025-02-02scan-deadcode: Do not warn unused fields if they start with '_'Arthur Cohen1-2/+3
gcc/rust/ChangeLog: * checks/lints/rust-lint-scan-deadcode.h: Check if the field name starts with an underscore before warning.
2025-02-02lang-items: Add structural_{peq, teq}Arthur Cohen3-0/+15
These lang items are used when deriving Eq and PartialEq, and will be checked when compiling pattern matching. gcc/rust/ChangeLog: * util/rust-lang-item.cc: New items. * util/rust-lang-item.h: Likewise. gcc/testsuite/ChangeLog: * rust/compile/structural-eq-peq.rs: New test.
2025-02-02nr2.0: late: Add proper handling for lang item PathInExpressionsArthur Cohen1-1/+7
gcc/rust/ChangeLog: * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Special case lang item paths.
2025-02-02Fix an issue with ForeverStack::dfs_ribOwen Avery1-3/+2
gcc/rust/ChangeLog: * resolve/rust-forever-stack.hxx (ForeverStack::dfs_rib): Fix const implementation. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
2025-01-31Add option_env! supportLiam Naddell8-1/+234
gcc/rust/ChangeLog: * expand/rust-macro-builtins-utility.cc: Add macro expansion for option_env with eager expansion * expand/rust-macro-builtins.cc: Add option_env to builtin list * expand/rust-macro-builtins.h: Add option_env handler to header file * resolve/rust-late-name-resolver-2.0.cc: Prevent NR2.0 from recursing into lang-item segments gcc/testsuite/ChangeLog: * rust/compile/macros/builtin/option_env1.rs: Add success case for option_env * rust/compile/macros/builtin/option_env2.rs: Add failure case for option_env * rust/execute/torture/builtin_macro_option_env.rs: Add execution case for option_env
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()
2025-01-29gccrs: add support for ref literal patternsPhilip Herron4-8/+52
Fixes Rust-GCC#3174 gcc/rust/ChangeLog: * backend/rust-compile-pattern.cc (CompilePatternBindings::visit): make recursive * typecheck/rust-hir-type-check-pattern.cc (TypeCheckPattern::visit): handle ref flag gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 cant handle this * rust/compile/issue-3174.rs: New test. Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-01-29lang-items: Add From::fromArthur Cohen2-0/+5
gcc/rust/ChangeLog: * util/rust-lang-item.h: Declare it. * util/rust-lang-item.cc: Use it.
2025-01-29gccrs: add new -frust-overflow-checks flag to control overflow checksPhilip Herron2-16/+21
This will be crucial for more complex gimple debugging to make it easier to follow the code vs the original rust code. gcc/rust/ChangeLog: * backend/rust-compile-expr.cc (CompileExpr::visit): disable overflow checks * lang.opt: new flag Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-01-29Remove some passing test from exclude filePierre-Emmanuel Patry1-5/+2
Those tests are now passing. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove some tests. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Compile unit struct with constructorPierre-Emmanuel Patry1-0/+5
gcc/rust/ChangeLog: * backend/rust-compile-resolve-path.cc (ResolvePathRef::resolve): Do not use query system for unit struct but compile it's constructor instead. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Resolved item type shall be differentiated laterPierre-Emmanuel Patry1-2/+4
We need to query all namespaces and error out at a later stage if the retrieved item is wrong. gcc/rust/ChangeLog: * typecheck/rust-hir-trait-resolve.cc (TraitResolver::resolve_path_to_trait): Query all namespaces. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Make foreverstack debug string constPierre-Emmanuel Patry2-6/+6
Those function should not change anything within the foreverstack, it can therefore be made const. gcc/rust/ChangeLog: * resolve/rust-forever-stack.h: Make debug functions const. * resolve/rust-forever-stack.hxx: Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Clone expr instead of taking itPierre-Emmanuel Patry1-4/+5
We're reusing the value, it could therefore not be taken be should be cloned. gcc/rust/ChangeLog: * typecheck/rust-hir-type-check-enumitem.cc (TypeCheckEnumItem::visit): Clone expr instead of taking it. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Remove some tests from nr2 exclusion filePierre-Emmanuel Patry1-11/+0
Those test are now passing. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Remove passing tests. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Remove query mode on CompileItemPierre-Emmanuel Patry2-8/+4
Query mode was a hack to catch up some compile errors early, it was deemed to be removed at some time. Recent changes to NR1 highlighted an incompatibility with it hence it's removal. gcc/rust/ChangeLog: * backend/rust-compile-item.h: Remove query mode. * backend/rust-compile-resolve-path.cc (HIRCompileBase::query_compile): Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Add unit struct to name namespace in old resolverPierre-Emmanuel Patry1-8/+15
We missed the name namespace for unit struct in the old resolver. gcc/rust/ChangeLog: * resolve/rust-ast-resolve-toplevel.h: Add struct to name namespace. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Add debug dump to old name resolverPierre-Emmanuel Patry1-0/+35
It might be necessary to compare both name resolution' internal states during the transition. This new debug representation could help with that. gcc/rust/ChangeLog: * resolve/rust-name-resolver.h: Add new degug dump for old name resolver. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-29Labels shall be pushed within label namespacePierre-Emmanuel Patry4-14/+14
Labels were using the wrong namespace. gcc/rust/ChangeLog: * resolve/rust-ast-resolve-expr.cc (ResolveExpr::visit): Change label push function from type rib to label rib. * resolve/rust-ast-resolve-item.cc (ResolveTraitItems::visit): Likewise. (ResolveItem::visit): Likewise. (ResolveExternItem::visit): Likewise. * resolve/rust-ast-resolve-stmt.h: Likewise. * resolve/rust-ast-resolve.cc (NameResolution::go): Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-28backend: Improve handling of lang-item PathInExpressionsArthur Cohen2-48/+84
gcc/rust/ChangeLog: * backend/rust-compile-resolve-path.cc (ResolvePathRef::visit): Call into resolve_path_like instead. (ResolvePathRef::resolve_path_like): New. (ResolvePathRef::resolve): Call into resolve_with_node_id. * backend/rust-compile-resolve-path.h: Declare new functions and document them.
2025-01-28ast: Add Path::is_lang_item()Arthur Cohen1-0/+2
gcc/rust/ChangeLog: * ast/rust-path.h: New function.
2025-01-28marklive: Fix handling for lang item PathInExpressions.Arthur Cohen1-4/+12
gcc/rust/ChangeLog: * checks/lints/rust-lint-marklive.cc (MarkLive::visit): Adapt to lang items.
2025-01-28hir: Adapt visitors to lang item PathInExpressionsArthur Cohen2-15/+85
gcc/rust/ChangeLog: * backend/rust-compile-resolve-path.cc (ResolvePathRef::visit): Adapt visitor to lang item HIR::PathInExpressions. * typecheck/rust-hir-type-check-path.cc (TypeCheckExpr::visit): Likewise.
2025-01-28hir: Add LangItem paths to PathPattern classArthur Cohen3-8/+104
gcc/rust/ChangeLog: * hir/tree/rust-hir-path.h: Adapt PathPattern to accept lang-item paths. * hir/tree/rust-hir-path.cc: Assert we are dealing with a segmented path, create lang-item constructors. * hir/tree/rust-hir.cc (PathPattern::convert_to_simple_path): Likewise.
2025-01-28ast: More visitors to allow lang item paths in expressionsArthur Cohen7-35/+53
gcc/rust/ChangeLog: * ast/rust-ast-collector.cc (TokenCollector::visit): Adapt visitor to lang item PathInExpressions. * ast/rust-ast-visitor.cc (DefaultASTVisitor::visit): Likewise. * expand/rust-cfg-strip.cc (CfgStrip::visit): Likewise. * expand/rust-expand-visitor.cc (ExpandVisitor::visit): Likewise. * hir/rust-ast-lower.cc (ASTLoweringExprWithBlock::visit): Likewise. (ASTLowerPathInExpression::visit): Likewise. * resolve/rust-ast-resolve-path.cc (ResolvePath::resolve_path): Likewise. * resolve/rust-early-name-resolver.cc (EarlyNameResolver::visit): Likewise.
2025-01-28lang-items: Add LangItem::IsEnumVariantArthur Cohen2-1/+13
gcc/rust/ChangeLog: * util/rust-lang-item.cc (LangItem::IsEnumVariant): New function. * util/rust-lang-item.h: Declare it.
2025-01-28mappings: Improve error message for get_lang_item_nodeArthur Cohen1-2/+2
gcc/rust/ChangeLog: * util/rust-hir-map.cc (Mappings::get_lang_item_node): Better formatting when a lang item does not exist when it should.
2025-01-28lang-items: Collect enum variants as lang itemsArthur Cohen2-0/+10
gcc/rust/ChangeLog: * ast/rust-collect-lang-items.h: Declare visitor. * ast/rust-collect-lang-items.cc (CollectLangItems::visit): New.
2025-01-28gccrs: catch missing guard for optional resultPhilip Herron2-7/+2
When we lookup here it returns an optional which can lead to a crash because it needs a guard if it has a value. gcc/rust/ChangeLog: * backend/rust-compile-resolve-path.cc (HIRCompileBase::query_compile): add guard gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: these tests now work it seems Signed-off-by: Philip Herron <herron.philip@googlemail.com>
2025-01-28Infer crate name after file openingDylan Gardner2-29/+34
Fixes #3129. gcc/rust/ChangeLog: * rust-session-manager.cc (Session::handle_crate_name): Remove crate name inference (Session::compile_crate): Add crate name inference and error if inferred name is empty. Remove CompileOptions::get_instance () that returned a local copy of the options. Rename crate_name_changed to crate_name_found to match semantics. (rust_crate_name_validation_test): Test inferring ".rs" name * rust-session-manager.h: Modify handle_crate_name definition to include filename.
2025-01-24Add captures for ClosureExprInnerTyped with nr2Pierre-Emmanuel Patry2-2/+16
Captures were only processed for regular ClosureExprInner. gcc/rust/ChangeLog: * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Add ClosureExprInnerTyped visit implementation. (add_captures): Add a function to avoid code duplication. * resolve/rust-late-name-resolver-2.0.h: Add function prototype. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-24Add environment capture to NR2Pierre-Emmanuel Patry6-1/+61
The compiler was still relying on NR1 for closure captures when using nr2 even though the resolver was not used and thus it's state empty. gcc/rust/ChangeLog: * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Add environment collection. * resolve/rust-late-name-resolver-2.0.h: Add function prototype. * resolve/rust-name-resolver.cc (Resolver::get_captures): Add assertion to prevent NR2 usage with nr1 capture functions. * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::visit): Use nr2 captures. * util/rust-hir-map.cc (Mappings::add_capture): Add function to register capture for a given closure. (Mappings::lookup_captures): Add a function to lookup all captures available for a given closure. * util/rust-hir-map.h: Add function prototypes. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
2025-01-23Check for type paths nr2.0 can't handle yetOwen Avery2-0/+23
Some of our tests only work with name resolution 2.0 because the latter misinterprets type paths. This change should cause the compiler to error out if it would otherwise misinterpret a type path. A fix for type path resolution isn't included in this comment, since doing so would make it harder to track the meaningfulness of test regressions. gcc/rust/ChangeLog: * resolve/rust-late-name-resolver-2.0.cc (Late::visit): Error out if a type path has multiple segments, as we currently ignore every segment except the last. gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: Add entries. Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
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