v0.10.0

Release covering updates over the last year including recent refactors for the updated Value type and initial implementation of type checker.

Note: Upcoming changes after this release will migrate many references to protobuf Message types to the canonical versions in CEL spec and will likely require client updates.

What's Changed

• Add support for managing modern type providers in the CEL type registry. by @copybara-service in #183
• Add accessors for extracting legacy type from cel::LegacyStructType. by @copybara-service in #186
• Patch of #188 to support BUILD environment customization. by @copybara-service in #193
• Remove unused functions from evaluator core. by @copybara-service in #203
• Split flat expression evaluator implementation from implementation of the legacy CelExpression interface. by @copybara-service in #204
• IWYU fixes for attribute trail. by @copybara-service in #215
• Update CEL C++ grammar to recognize but reject optional by @copybara-service in #221
• Remove direct interop usages from flat_expr_builder. by @copybara-service in #222
• Fix internal comment scrubbing using wrong tags. by @copybara-service in #233
• Fixed the reference to CelExpression::Trace in the documentation for CelEvaluationListener. by @copybara-service in #234
• Implement partial support for setting repeated and map value google.protobuf.Any fields in ProtoStructValueBuilder by @copybara-service in #236
• Partially migrate create_list_step. by @copybara-service in #249
• Add modern value implementation of mutable list for map/filter list builder optimization. by @copybara-service in #250
• Add utilities for creating google.protobuf.Any.type_url by @copybara-service in #259
• Move arithmetic operators to runtime/standard. by @copybara-service in #267
• Add protocol buffer message encoding utility class by @copybara-service in #268
• Add optimized program plan step for the select optimization. by @copybara-service in #247
• Add generic implementation of ConvertToAny and ConvertToJson for list and map by @copybara-service in #278
• Refactor comprehension planning in flat expr builder to use comprehension specific visitor callbacks. by @copybara-service in #293
• Simplify value stack operations for comprehensions. by @copybara-service in #295
• Migrate in functions to use Handles. by @copybara-service in #303
• Move error factories from eval/internal to runtime/internal by @copybara-service in #304
• Prepare to migrate create_struct_step.cc for map by @copybara-service in #316
• • Add support for checked downcast on runtime to support extensions. by @copybara-service in #287
• Update signature of MapValue::Has to include ValueFactory& by @copybara-service in #325
• Add end to end tests for modern protobuf type provider impl. by @copybara-service in #327
• Fully implement optional syntax for parser by @copybara-service in #338
• Add cel::Value and cel::Activation equivalent of the bind context to activation helper. by @copybara-service in #341
• More cel::Macro cleanup by @copybara-service in #348
• Export kPayloadUrlMissingAttributePath to public header. by @copybara-service in #350
• Introduce Issue and IssueCollector types for collecting issues encountered during expression planning. by @copybara-service in #356
• Update Kind, TypeKind, and NativeTypeId by @copybara-service in #367
• Add exception macros by @copybara-service in #374
• Add to proto function for cel::Ast. by @copybara-service in #368
• No public description by @copybara-service in #378
• Internal change by @copybara-service in #380
• DoubleType and DoubleTypeView by @copybara-service in #390
• DurationType and DurationTypeView by @copybara-service in #392
• Add benchmark tag to sets_functions_benchmark_test by @copybara-service in #406
• IntValue and IntValueView by @copybara-service in #419
• Use absl::Span for returns in attributes by @copybara-service in #426
• TimestampValue and TimestampValueView by @copybara-service in #421
• Delete unused base/type_registry.h by @copybara-service in #429
• UnknownValue and UnknownValueView by @copybara-service in #428
• Remove ability to modify EnumType equality and hashing by @copybara-service in #432
• Add least and greatest macros for Math extension library by @copybara-service in #431
• Rework OpaqueType and OpaqueTypeView by @copybara-service in #434
• Allow Type to be default constructible by @copybara-service in #436
• Allow Value to be default constructible by @copybara-service in #437
• Add TypeFactory by @copybara-service in #439
• Update Qualify interface to optionally return the number of qualifiers applied. by @copybara-service in #405
• MapValue and MapValueView by @copybara-service in #454
• Allow OptionalType to be default constructed by @copybara-service in #456
• Improve hashing of Type, TypeView, and friends by @copybara-service in #460
• Refactor CommonTypes to ProcessLocalTypeCache by @copybara-service in #458
• Prevent binding to temporaries in TypeView and friends by @copybara-service in #461
• OpaqueValue, OpaqueValueView, OptionalValue, and OptionalValueView by @copybara-service in #457
• Attach modern runtime to conformance tests with noisy test failures. Update skip list for failing tests. by @copybara-service in #464
• Add navigable_ast utility for AST analysis. by @copybara-service in #462
• Update type cache to return views by @copybara-service in #466
• Store cached optionals separate from opaques for efficiency by @copybara-service in #467
• Move default optional value to ProcessLocalValueCache by @copybara-service in #468
• Update protobuf type adapter to support select optimization through map and repeated fields. by @copybara-service in #438
• Update ValueView and friends to avoid binding to temporaries by @copybara-service in #469
• Add support for pre/post order traversals on NavigableExpr. by @copybara-service in #465
• Add stringifiers for Navigable AST enums. by @copybara-service in #473
• Allow Shared, SharedView, and Unqiue to be default constructed by @copybara-service in #472
• Refactor value deserialization to be handle agnostic by @copybara-service in #474
• Refactor value serialization to be handle agnostic by @copybara-service in #475
• Default enable unique numbering in C++ CEL parser for built-in macro accumulator vars. Previously, all Expr nodes representing the internal accu_var 'result' shared the same ID in a given comprehension. by @copybara-service in #453
• Refactor TypeFactory, TypeCache, and ValueCache by @copybara-service in #477
• Rename memory_manager() to GetMemoryManager() by @copybara-service in #478
• Introduce ValueFactory by @copybara-service in #479
• Add benchmarks for bind expressions. by @copybara-service in #483
• No public description by @copybara-service in #459
• Update slot indexing to use a manager rather than assuming 2 slots per comprehension. by @copybara-service in #484
• Add ability to perform serialization size calculations without serializing by @copybara-service in #485
• BoolValue serialization by @copybara-service in #486
• ErrorValue serialization by @copybara-service in #487
• UnknownValue serialization by @copybara-service in #488
• NullValue serialization by @copybara-service in #489
• BytesValue serialization by @copybara-service in #490
• DoubleValue serialization by @copybara-service in #491
• DurationValue serialization by @copybara-service in #492
• IntValue serialization by @copybara-service in #493
• StringValue serialization by @copybara-service in #494
• TimestampValue serialization by @copybara-service in #495
• TypeValue serialization by @copybara-service in #496
• UintValue serialization by @copybara-service in #497
• OpaqueValue serialization by @copybara-service in #498
• Upgrade ANTLR and enable Abseil for ANTLR by @copybara-service in #503
• Add JSON conversion to Value and friends by @copybara-service in #500
• ListValue and MapValue serialization by @copybara-service in #501
• Introduce TypeManager and ValueManager by @copybara-service in #499
• Unnest simple expressions instead of traversing recursively in the CEL C++ parser. by @copybara-service in #502
• Update managers to extend factories, leaving factories as an abstract interface by @copybara-service in #504
• Fix compiler warnings. by @copybara-service in #507
• Suppress deprecation warnings for cloud build. by @copybara-service in #508
• Split data into type and value by @copybara-service in #509
• Update some arguments to use views by @copybara-service in #510
• Update types and values to use managers instead of factories by @copybara-service in #511
• Fix missing include directives by @copybara-service in #506
• Change to E2_HIGHCPU_32 by @copybara-service in #513
• Avoid mixing iterators and pointers due to MSVC by @copybara-service in #512
• Update arguments in ValueManager by @copybara-service in #516
• Add evaluator support for lazily evaluating certain subexpressions. by @copybara-service in #481
• Replace type() with GetType(TypeManager&) and GetTypeName() by @copybara-service in #518
• Split value_provider.cc into separate files by @copybara-service in #519
• Remove EnumType and EnumValue by @copybara-service in #521
• Add additional benchmark cases for nested bind definitions. by @copybara-service in #514
• StructValue and StructValueView by @copybara-service in #520
• Add support for nested lazy init bind definitions. by @copybara-service in #515
• Deserialization and builders for well known types by @copybara-service in #522
• Remove option for old non-unique id numbering for map/filter macros. by @copybara-service in #523
• Update SelectOptimization and AttributeTracking to behave consistently with cel.bind. by @copybara-service in #524
• Default enable lazy initialization for bind expressions. by @copybara-service in #526
• Temporarily remove new proto bindings by @copybara-service in #534
• Legacy managers and providers by @copybara-service in #527
• Unknown by @copybara-service in #531
• Split list/map into parsed/legacy by @copybara-service in #530
• Update ListValue::ForEach to additionally pass indices for convinience by @copybara-service in #529
• Tag benchmark so CI doesn't run it by @copybara-service in #536
• Remove GetMemoryManager from providers by @copybara-service in #535
• Update MapValue::Has by @copybara-service in #528
• Equal and IsZeroValue by @copybara-service in #532
• Update StructValueBuilder::Build by @copybara-service in #533
• Tune Bazel for GCB. Set parallelism and memory limits. by @copybara-service in #540
• More compatibility changes by @copybara-service in #539
• Update navigable AST to traverse nodes by cref. by @copybara-service in #538
• More compatibility changes by @copybara-service in #541
• Cleanup some interop usage by @copybara-service in #544
• Rename memory_manager() to GetMemoryManager() by @copybara-service in #542
• Add proto2::Arena* to CreateTypeValueFromView by @copybara-service in #543
• Implement type introspection for well known types by @copybara-service in #546
• Add absl::optional to various return types by @copybara-service in #547
• Add const to TypeProvider and ValueProvider by @copybara-service in #548
• Make TypeProvider and ValueProvider no long pure virtual by @copybara-service in #549
• Add default empty list and map implementation by @copybara-service in #550
• Add methods to factories for compatibility by @copybara-service in #551
• TypeProvider -> TypeIntrospector and ValueProvider -> TypeReflector by @copybara-service in #552
• Drop inheritance of cel::TypeProvider by @copybara-service in #553
• Detangle legacy_type_adapter from base/ type/value by @copybara-service in #554
• Use dedicated comprehension slots inside of bind subexpressions when lazily evaluated. by @copybara-service in #556
• Add StructValue::Qualify by @copybara-service in #555
• No public description by @copybara-service in #557
• Various bug fixes and changes to improve compatibility with base/ handles, types, and values by @copybara-service in #559
• Add base/value_manager.h to assist migration by @copybara-service in #560
• Various miscellaneous fixes by @copybara-service in #562
• Update Abseil to Abseil LTS 20240116.0 by @copybara-service in #563
• cel::internal::NoDestructor -> absl::NoDestructor by @copybara-service in #564
• cel::internal::Overloaded -> absl::Overload by @copybara-service in #567
• Miscellaneous changes by @copybara-service in #565
• Update ProtobufDescriptorProvider::ProvideLegacyTypeInfo to return absl::nullopt instead of nullptr by @copybara-service in #566
• Publish initial version of CEL C++ Codelab by @copybara-service in #561
• Add support for adding individual program steps in extensions. by @copybara-service in #545
• Avoid string/bytes copying when using arenas by @copybara-service in #569
• Optimize various ListValue and MapValue functions for literal lists/maps by @copybara-service in #570
• Update slot accounting for lazily evaluated bind expressions. by @copybara-service in #573
• cel::Handle<T> -> T by @copybara-service in #568
• Add ABSL_CONST_INIT and change std::pair<uint8_t, uint8_t> to std::pair<const uint8_t, const uint8_t> by @copybara-service in #575
• Add branch coverage utility to CEL C++ tools. by @copybara-service in #525
• Update evaluator to assume lazy bind evaluation is always enabled. This has been enabled by default for several weeks. by @copybara-service in #572
• Add type url parsing support by @copybara-service in #578
• Update googleapis and cel-spec versions to include updated syntax.proto definition with extension tags. by @copybara-service in #580
• Replace Handle<T> with T by @copybara-service in #576
• Kill cel::Handle entirely by @copybara-service in #581
• Remove base/memory.h by @copybara-service in #582
• Add support for extension tags in internal ast representation. by @copybara-service in #585
• Remove base/type.h and base/value.h by @copybara-service in #587
• Add support for converting proto extension tags to/from the internal ast representation. by @copybara-service in #584
• Remove Kind::kWrapper and Kind::kEnum by @copybara-service in #590
• Remove unused methods from migration by @copybara-service in #591
• Add optimization hints to EvaluatorStack and switch some to FATAL by @copybara-service in #594
• Devirtualize ExpressionStep::id and ExpressionStep::ComesFromAst by @copybara-service in #593
• Support for mapping protocol buffer types to CEL types by @copybara-service in #597
• Refactor flat expr builder to build a program tree then flatten instead of building the flat expression directly. by @copybara-service in #596
• Move inlined functions from header to source by @copybara-service in #599
• Remove reference to handle factory by @copybara-service in #600
• Add ABSL_ATTRIBUTE_LIFETIME_BOUND to Shared by @copybara-service in #601
• Add aliasing constructor to Shared by @copybara-service in #602
• Add cel::StaticCast by @copybara-service in #603
• No public description by @copybara-service in #604
• Use alignment and new/delete utilities by @copybara-service in #609
• Add a few google.protobuf.Any utilities by @copybara-service in #610
• Move IsProtoEnum to internal by @copybara-service in #611
• Per abseil documentation: Note that this attribute is redundant if the variable is declared constexpr. by @copybara-service in #613
• Avoid copies in function adapter code and CEL standard implementations for string value args. by @copybara-service in #612
• Optimize Value::kind(). This is called in a tight loop in final overload resolution so static array lookup can be faster than variant visitor dispatch. by @copybara-service in #615
• Move function adapter code to /runtime. by @copybara-service in #617
• Fix cel::common_internal::IsStringLiteral by @copybara-service in #614
• Protocol buffer types to JSON by @copybara-service in #618
• Directly return cel::Value return types instead of passing through wrapping logic in function adapter code. by @copybara-service in #619
• Propagate ValueManager& through various functions by @copybara-service in #623
• Remove StructValue::ConvertToJsonObject by @copybara-service in #625
• Introduce specialized interface for Any to Json conversion by @copybara-service in #627
• Protocol buffer AnyToJsonConverter implementation by @copybara-service in #626
• Refactor protobuf JSON internals to expose functionality by @copybara-service in #629
• Remove unused variables from select step impl and flat expr builder. by @copybara-service in #630
• Refactor qualify logic to be value agnostic by @copybara-service in #631
• Move implementations from the header file. by @copybara-service in #635
• Various tweaks to interfaces and testing by @copybara-service in #637
• Add gtest matching utilities for cel::Value. by @copybara-service in #638
• Generalize JsonValueManager as PiecewiseValueManager by @copybara-service in #643
• Protocol buffer message conversion internals. Provides a default Struct implementation for pb messages. by @copybara-service in #640
• No public description by @copybara-service in #622
• Implement unwrapping utilities (cel::Value -> protobuf type). by @copybara-service in #645
• Update descriptor_pool() to be public by @copybara-service in #646
• Revive conformance test harness for modern values by @copybara-service in #649
• Revive conformance test harness for modern values by @copybara-service in #650
• Revive conformance test harness for modern values by @copybara-service in #651
• Split more internal helper methods into proto lite by @copybara-service in #652
• Fix cloudbuild by updating cel-spec dependency by @copybara-service in #658
• Fix casting support for optional_type by @copybara-service in #657
• No public description by @copybara-service in #661
• Implement runtime support for optionals by @copybara-service in #660
• Update optional.or and optional.orValue to short-circuit upon an error by @copybara-service in #664
• Implement encoders extension in C++ by @copybara-service in #665
• Split create map and create struct libraries. Apply IWYU and build_cleaner findings. No functional changes. by @copybara-service in #663
• Remove attribute checking from slot accesses. by @copybara-service in #662
• Add support for handling extensions by @copybara-service in #667
• Fix unexpected conversion from map<{bool,int,uint}, ?> to google.protobuf.Struct by @copybara-service in #668
• Introduce MacroRegistry by @copybara-service in #671
• Migrate math_ext to modern values by @copybara-service in #673
• Minor modifications to common/source.h by @copybara-service in #674
• Remove ABSL_ATTRIBUTE_PURE_FUNCTION by @copybara-service in #678
• Further restrict default parser limits by @copybara-service in #676
• Make use of MacroRegistry and enable bindings conformance tests by @copybara-service in #679
• Enable math conformance tests by @copybara-service in #680
• Upgrade interop to handle modern values by @copybara-service in #669
• Enable proto2 conformance tests by @copybara-service in #681
• Enable conformance tests for non-arena by @copybara-service in #682
• Add definitions for directly evaluated steps (recursive evaluation). by @copybara-service in #683
• Add support for recursively evaluated functions and constants. by @copybara-service in #684
• Add support for recursive plans up to a certain depth. by @copybara-service in #685
• Add recursive implementation for ternary steps. by @copybara-service in #686
• Short-circuit in optional.or and optional.orValue when receiver is unknown by @copybara-service in #704
• Add support for recursively planned CreateList expressions. by @copybara-service in #687
• Add support for recursively planned ident steps. by @copybara-service in #694
• Add support for recursively planned select operations. by @copybara-service in #633
• Add benchmark support for recursive planning. by @copybara-service in #688
• Add support for recursively planned index operations. by @copybara-service in #690
• Introduce cel::Expr by @copybara-service in #706
• Add support for recursively planned slot steps. by @copybara-service in #691
• Add support for recursively planned map steps. by @copybara-service in #693
• Add support for recursively planned struct steps. by @copybara-service in #659
• Add support for tracing recursively planned programs. by @copybara-service in #695
• Add support for recursively planned bind expressions. by @copybara-service in #696
• Implement bidirectional conversion between cel::Expr and google::api::expr::Expr by @copybara-service in #707
• Add recursive plan support for mutable lists in map/filter macros. by @copybara-service in #698
• Add recursive eval support for shadowable values. by @copybara-service in #699
• Add support for evaluating lazily resolved / contextual functions recursively. by @copybara-service in #700
• Add support for inspecting and extracting some recursive program steps (function calls and constants). by @copybara-service in #701
• Add select optimization support for recursively planned programs. by @copybara-service in #702
• Test fix for branch coverage to tolerate slight variations in trace behavior. by @copybara-service in #703
• Replace cel::ast_internal::{Constant,Ident} with cel::{Constant,IdentExpr} by @copybara-service in #710
• Update graphviz formatting: by @copybara-service in #713
• Reject mixed CreateStruct.Entry.key_kind by @copybara-service in #714
• Replace more of base/base_internal/expr.h with common/ast.h by @copybara-service in #716
• Make Value default constructible, copyable, and moveable. by @copybara-service in #717
• Move Expr and friends to a separate target and move base/ast.h to common/ast.h by @copybara-service in #718
• Make Type default constructible, copyable, and moveable. by @copybara-service in #719
• Add gtest matchers for OptionalValue by @copybara-service in #724
• Add TypeParamType and FunctionType by @copybara-service in #721
• Add specialization for default cel::Program implementation if the program is fully recursive. by @copybara-service in #726
• Remove subexpr argument to {Pre,Post}VisitComprehensionSubexpression by @copybara-service in #723
• Split optional.or specific jump logic to its own cc_library. No functional changes. by @copybara-service in #727
• Move optional.or implementation to a custom evaluator step. by @copybara-service in #728
• Introduce Decl hierarchy by @copybara-service in #722
• Add recursive implementation for optional.or(Value) steps. by @copybara-service in #725
• Fix use-after-free for proto map list keys. by @copybara-service in #729
• Return const Type& instead of TypeView and add ABSL_ATTRIBUTE_LIFETIME_BOUND by @copybara-service in #730
• Reimplement C++ parser using common/ast.h by @copybara-service in #708
• Swap argument order in AstVisitor by @copybara-service in #731
• Switch from pointers to references in AstVisitor by @copybara-service in #732
• Split conformance value conversion utility to a separate build target. by @copybara-service in #733
• Temporarily remove new proto bindings by @copybara-service in #737
• Introduce Reference by @copybara-service in #736
• Update IsEmpty and Size to return absl::StatusOr by @copybara-service in #739
• Reduce code duplication in BoolValue by @copybara-service in #741
• Reduce code duplication in DoubleValue by @copybara-service in #742
• Reduce code duplication in DurationValue by @copybara-service in #743
• Reduce code duplication in UintValue, TimestampValue, NullValue, IntValue by @copybara-service in #747
• cel::internal::to_address by @copybara-service in #753
• Fix nullability annotation of ReferenceCountingMemoryManager::Allocate(). by @copybara-service in #748
• More comprehensive wrappers for operator new and operator delete by @copybara-service in #754
• Add metadata header defining bit mask by @copybara-service in #755
• Introduce cel::Allocator by @copybara-service in #756
• Use register helpers in the string package. by @copybara-service in #766
• Additional documentation for using FunctionAdapter and RegisterHelper. by @copybara-service in #767
• Add Allocator::allocate_object<T> and Allocator::deallocate_object<T> by @copybara-service in #762
• Add function for enabling select optimization on cel::RuntimeBuilder. by @copybara-service in #771
• Collapse MemoryManager into new/delete and proto2::Arena by @copybara-service in #765
• Rename @cel.attribute to cel.@Attribute to be consistent with other cel-namespaced internal functions. by @copybara-service in #772
• cel::common_internal::ByteString and cel::common_internal::ByteStringView by @copybara-service in #761
• Overhaul Unique<T> by @copybara-service in #764
• Add to_address support for cel::Unique<T> by @copybara-service in #769
• Internal change. by @copybara-service in #757
• Stop returning cel::ValueView by @copybara-service in #779
• Fork and migrate benchmarks to use modern APIs. by @copybara-service in #778
• Add option for reference counting support benchmarks. by @copybara-service in #780
• Replace uses of down_cast on Protobuf messages with static_cast. by @copybara-service in #783
• Make choice of legacy or modern list/map builder configurable. Default to using modern builders when using cel::Runtime and related types. by @copybara-service in #786
• Add a test matcher for the elements of cel::ListValue and cel::MapValue. by @copybara-service in #790
• Add a matcher to test cel::StructValue against a protobuf message. by @copybara-service in #789
• Update docker image to Bazel 7.2.1 by @copybara-service in #795
• Refactor out conformance service interface and options by @copybara-service in #796
• Port conformance test runner to C++ by @copybara-service in #797
• Remove now unused dependencies related to conformance testing by @copybara-service in #798
• Upgrade ABSL_DCHECK to ABSL_CHECK in the cache by @copybara-service in #799
• Remove ABSL_ATTRIBTUE_PURE_FUNCTION for non-trivial return types by @copybara-service in #800
• Update dependencies to latest versions by @copybara-service in #793
• Fix tracing support for cel.bind() expressions. Prior to this change, tracing might report the wrong value or LOG(ERROR) when accessing the lazily initialized variable for the first time. by @copybara-service in #801
• cel::Owned<T>, cel::Borrowed<T>, cel::Ownable<T>, cel::Borrowable<T> by @copybara-service in #774
• Update Dockerfile and cloudbuild.yaml to use smaller container by @copybara-service in #803
• Add support for proto2::ArenaSafeUniquePtr to cel::Unique by @copybara-service in #802
• Upgrade ABSL_DCHECK to ABSL_CHECK in the cache by @copybara-service in #805
• Remove ABSL_ATTRIBUTE_PURE_FUNCTION from cache getters by @copybara-service in #806
• Remove more ABSL_ATTRIBUTE_PURE_FUNCTION by @copybara-service in #808
• Propagate proto2::Arena* and simplify by using Owner and Borrower to implement Owned<T> and Borrowed<T> by @copybara-service in #807
• Fixing the CelMap to string operator to gracefully handle invalid keys. by @copybara-service in #804
• Remove ValueView from extensions/... by @copybara-service in #812
• Remove parts of ValueView from common/... by @copybara-service in #813
• Remove ValueView from common/legacy_value by @copybara-service in #814
• Make cel::Activation move constructible / assignable. by @copybara-service in #815
• Rollback: Remove ValueView entirely by @copybara-service in #817
• Rollback: Remove ValueView entirely by @copybara-service in #818
• Handle well known types using protobuf-lite runtime by @copybara-service in #819
• Scrub internal issue TODOs. Currently they mostly map to uncreated issues which aren't particularly helpful. by @copybara-service in #820
• Fix CEL C++ to build when generated messages lack reflection by @copybara-service in #821
• Fold proto-less versions of parsed / checked expressions into the AstImpl. by @copybara-service in #823
• Mark CelValue::CreateMessageWrapper and CelValue::MessageWrapperOrDie as deprecated by @copybara-service in #826
• Mark MessageWrapper as deprecated by @copybara-service in #828
• Make PortableFunctionAdapter an alias to FunctionAdapter by @copybara-service in #825
• moves vector operations to a location where they're operating on complete types by @copybara-service in #829
• Implement remainder of math function extensions by @copybara-service in #830
• Consolidate iterative lazy slot initialization into a single step by @copybara-service in #833
• Cleanup cel::BoolValue by @copybara-service in #836
• Cleanup cel::UintValue by @copybara-service in #842
• Cleanup cel::IntValue by @copybara-service in #839
• Cleanup cel::DoubleValue by @copybara-service in #837
• Cleanup cel::DurationValue by @copybara-service in #838
• Cleanup cel::NullValue by @copybara-service in #840
• Cleanup cel::TimestampValue by @copybara-service in #841
• Remove Value::swap by @copybara-service in #845
• Remove Value::GetSerializedSize by @copybara-service in #844
• Add Value::Enum methods for dynamic and generated protobuf enums by @copybara-service in #835
• Remove Value::Serialize, Value::GetTypeUrl, and Value::ConvertToAny by @copybara-service in #846
• Add ClearSlotsStep by @copybara-service in #847
• Remove cel::TypeView by @copybara-service in #848
• Silence build warnings. by @copybara-service in #850
• Add minimal and testing descriptor pools by @copybara-service in #852
• Add utility for getting generated message type name by @copybara-service in #853
• Include identity functions in the standard definitions by @copybara-service in #851
• Make StructType a composed type by @copybara-service in #849
• Mark non-modifying container algorithms as constexpr for C++20. by @copybara-service in #824
• No public description by @copybara-service in #855
• Consolidate type kind checking and casting by @copybara-service in #856
• Delete now unused SizedInputView by @copybara-service in #860
• Implement a basic string pool by @copybara-service in #857
• Fix typo in ast_rewrite.h comment by @copybara-service in #861
• Add template helper for indexing ConstantKind by type. by @copybara-service in #858
• Remove cel::Any by @copybara-service in #862
• Overhaul cel::Type by @copybara-service in #863
• Implement TypePool by @copybara-service in #864
• Add EnumType which covers the enum proposal, which is type only by @copybara-service in #865
• Make Type always valid by @copybara-service in #866
• Implement parts of cel.@block in C++ evaluator by @copybara-service in #868
• Add internal testing helpers for textproto by @copybara-service in #869
• No public description by @copybara-service in #873
• Add cel::SetAnyValueFromCord by @copybara-service in #875
• Internal change. by @copybara-service in #877
• Upgrade StructTypeField to launder proto2::FieldDescriptor by @copybara-service in #872
• Add a warning about calling the parser during C++ static initialization. by @copybara-service in #878
• Add missing identity functions for duration and timestamp by @copybara-service in #880
• Update cel.@block implementation in C++ to handle comprehensions by @copybara-service in #879
• Add unit tests for cel.@block by @copybara-service in #882
• Add skeletons for message-based values by @copybara-service in #886
• Make Activation move-able like its parent, BaseActivation. by @copybara-service in #887
• ArenaString by @copybara-service in #881
• Add @com_google_cel_spec//proto/cel/expr to testing descriptor pool by @copybara-service in #884
• Switch to open source status matchers by @copybara-service in #888
• No public description by @copybara-service in #891
• Introduce better Value::Is, Value::As, and explicit conversion overloads by @copybara-service in #890
• Output descriptor differences when ValidateStandardMessageType fails. by @copybara-service in #889
• Remove some deadcode by @copybara-service in #896
• No public description by @copybara-service in #895
• ParsedMessageValue stub out StructValue by @copybara-service in #897
• Remove static_assert that checks the default new alignment. by @copybara-service in #902
• ParsedRepeatedFieldValue stub out ListValue by @copybara-service in #898
• No public description by @copybara-service in #894
• ParsedMapFieldValue stub out MapValue by @copybara-service in #899
• ParsedJsonMapValue stub out MapValue by @copybara-service in #901
• Intergate ParsedMessageValue and MessageValue into the Value hierarchy by @copybara-service in #905
• Integrate ParsedMapFieldValue, ParsedJsonMapValue, ParsedRepeatedFieldValue, and ParsedJsonListValue into the Value hierarchy by @copybara-service in #906
• Remove LegacyAnyPackingApis by @copybara-service in #914
• Add interfaces and coordinating types for type checker. by @copybara-service in #915
• Wire stub implementation for type checker into conformance. Only runs in "dashboard" mode. by @copybara-service in #822
• Expose making reference counted strings internally by @copybara-service in #918
• Add basic name resolution for C++ type checker. by @copybara-service in #843
• Prepare for google::protobuf::MapKey to no longer own string keys by @copybara-service in #922
• Remove implicit constructor from cel::ErrorValue by @copybara-service in #926
• Explicitly delete implicitly deleted constructor by @copybara-service in #929
• Don't ABSL_CONST_INIT with constexpr by @copybara-service in #927
• Unified well known type handling by @copybara-service in #910
• Mark unused parameter as such by @copybara-service in #928
• Add standard library declarations for C++ type checker. by @copybara-service in #916
• Update Ast Type operator== to correctly handle comparing TypeTypes by @copybara-service in #919
• No public description by @copybara-service in #930
• Add basic support for type inferencing in CEL C++ type checker for literals and loops. Follow-ups will add support for function overloads and struct types. by @copybara-service in #920
• Unified well known type unwrapping by @copybara-service in #923
• Replacement for converting messages to structured JSON by @copybara-service in #925
• Switch from static_cast to member functions for conversion by @copybara-service in #935
• Add support for basic function overload resolution. Follow-up will address resolving parameterized types. by @copybara-service in #924
• Unified JSON equality and debug strings by @copybara-service in #932
• ParsedJsonListValue and ParsedJsonMapValue by @copybara-service in #933
• Forward cel::InstanceOf, cel::Cast, and cel::As to member functions by @copybara-service in #936
• Fix Unique::PreRelease to cast away constness before calling google::protobuf::Arena::Own by @copybara-service in #939
• Switch from static_cast to member functions for conversion 2 by @copybara-service in #938
• Remove deadcode by @copybara-service in #940
• Add support for type parameter inferencing by @copybara-service in #931
• Add initial support checking message creations sub-expressions in C++ type checker. Add coverage for special-cased well-known types. by @copybara-service in #934
• Add Is, As, and Get for ParsedMapFieldValue and ParsedRepeatedFieldValue by @copybara-service in #946
• Add support for checking field accesses. by @copybara-service in #937
• Implement CEL equality in terms of protocol buffer messages by @copybara-service in #944
• Add support for looking up enum values in cel::TypeIntrospector by @copybara-service in #942
• Internal change by @copybara-service in #949
• Move & overload to be inline by @copybara-service in #952
• Internal change by @copybara-service in #948
• Convert missed explicit operator overload by @copybara-service in #951
• Add support for looking up type constants and enums. by @copybara-service in #943
• Add type checking to conformance tests. by @copybara-service in #945
• Further deduplicate code by @copybara-service in #954
• Update FunctionDecl to maintain insertion order for Overloads. by @copybara-service in #955
• Initialize google.protobuf.FieldMask reflection if the descriptor is present by @copybara-service in #959
• Replace third-party message values with first-party message values by @copybara-service in #956
• Utilize zero-copy proto2::MapKey when available by @copybara-service in #962
• Do not create our own dynamic message factory by @copybara-service in #963
• Add library declaring CEL optional definitions for the C++ type checker. by @copybara-service in #957
• Add DCHECK to ArenaAllocator and ArenaAllocatorFor by @copybara-service in #966
• Add enums representing active kind for cel::Expr and cel::Constant. by @copybara-service in #965
• Remove weak symbols from CEL by @copybara-service in #968
• Fix issue location calculation and display to match Go implementation. by @copybara-service in #972
• Fix type declaration for 'type' (type(type) instead of type(A)) by @copybara-service in #973
• Remove type annotation for optional select (the field name string does not describe a runtime value). by @copybara-service in #974
• Add support for dumping checked ASTs in the baseline test format used by CEL Java library. by @copybara-service in #975
• Mark legacy container methods that do not take an arena as deprecated by @copybara-service in #976
• Move legacy runtime type conversion by @copybara-service in #981
• Make NewDeleteAllocator and ArenaAllocator distinct types by @copybara-service in #979
• Update assignability to follow legacy nullability behaviors. by @copybara-service in #977
• Fix bug in CreateListDirectStep which attempts to add unknowns to a list by @copybara-service in #982
• Remove last vestiges of explicit conversion operators by @copybara-service in #986
• Change NewDeleteAllocator<void> from struct to class by @copybara-service in #991
• Change MessageToJsonState from struct to class by @copybara-service in #993
• Add mutable list values and mutable map values by @copybara-service in #990
• Optimize mutable list append to avoid creating temporary single element list by @copybara-service in #996
• Move struct value builder into common/ by @copybara-service in #995
• Cleanup now unused code from the migration by @copybara-service in #999
• Prepare code for breaking change in Protobuf C++ API. by @copybara-service in #1000
• Add variable for dyn type (e.g. type(dyn(1)) == dyn) by @copybara-service in #989
• Return somewhat expected errors as cel::ErrorValue instead of absl::Status by @copybara-service in #1005
• Silence -Winvalid-offsetof for cel::common_internal::ReferenceCountedString by @copybara-service in #1006
• Migrate remaining well known type handling and remove deadcode by @copybara-service in #1001
• Update assignability check to allow wrapper types to match their corresponding primitives. by @copybara-service in #1007
• Update TypeChecker builder to error when adding overloads that overlap with built-in macros. by @copybara-service in #1008
• Restore legacy behavior for ignoring overflows in duration/timestamp by @copybara-service in #1010
• Mandate passing proto2::DescriptorPool to the type checker by @copybara-service in #1012
• Move CheckerOptions to the cel namespace by @copybara-service in #1013

Full Changelog: v0.9.0...v0.10.0