Bug Fixes

• [TypeChecker]: fixed a bug where a recursive type would be inferred leading to an eventual crash.

Features

• added most of the remaining functions in the canonical strings extension

API Changes

• cel::Ast is no longer opaque, the members are visible without downcasting to a private implementation.
• cel::NavigableAst -> cel::NavigableProtoAst
• cel::NavigableAst added (operating on cel::Expr and co.)

Other

• various refactors

What's Changed

• Add validations for types in TypeChecker declarations by @copybara-service[bot] in #1616
• Deprecating the regex_functions.cc by @copybara-service[bot] in #1634
• Only ignore warning in clang >= 20 by @copybara-service[bot] in #1636
• Enable type param name validation by default. by @copybara-service[bot] in #1629
• No public description by @copybara-service[bot] in #1641
• No public description by @copybara-service[bot] in #1642
• No public description by @copybara-service[bot] in #1640
• Address a few compiler warnings for clang. by @copybara-service[bot] in #1652
• No public description by @copybara-service[bot] in #1650
• Add ast_internal::NullType for internal AST type representation. by @copybara-service[bot] in #1638
• Add transformMapEntry macros and a map-merging overload for cel.@mapInsert. by @copybara-service[bot] in #1654
• Initial interpreter implementation by @copybara-service[bot] in #1656
• Add ComprehensionsV2CompilerLibrary and BindingsCompilerLibrary by @copybara-service[bot] in #1657
• Add validation that type declarations don't contain empty MessageTypes. by @copybara-service[bot] in #1658
• Export test runner library. by @copybara-service[bot] in #1660
• Support for error message assertion. by @copybara-service[bot] in #1661
• Move AST metadata types from cel::ast_internal namespace to cel. by @copybara-service[bot] in #1653
• Minor naming changes to AstImpl for consistency by @copybara-service[bot] in #1659
• Make AST fields visible on public AST interface. by @copybara-service[bot] in #1664
• Add tests for CelValue runtime using the RegexExtension. by @copybara-service[bot] in #1669
• Cleanup for navigable ast. by @copybara-service[bot] in #1665
• Add accessors for subtree size and height for navigable AST. by @copybara-service[bot] in #1666
• Factor out and consolidate internals for NavigableAst implementation in common_internal. by @copybara-service[bot] in #1667
• Rename NavigableAst -> NavigableProtoAst. by @copybara-service[bot] in #1671
• Extract implementation details for NavigableAst to internal template base class. by @copybara-service[bot] in #1668
• Make Expr and Ast copy constructible/assignable. by @copybara-service[bot] in #1237
• Remove downcasting from cel::Ast to AstImpl. by @copybara-service[bot] in #1672
• Remove remaining references to AstImpl. by @copybara-service[bot] in #1673
• Delete AstImpl, everything should just use Ast directly now. by @copybara-service[bot] in #1674
• Minor usability update to the set functions enablement for legacy CEL expression builder users by @copybara-service[bot] in #1676
• Support for compiler for raw cel expressions or .cel files by @copybara-service[bot] in #1662
• Mark arena as nullable by @copybara-service[bot] in #1678
• Automated Code Change by @copybara-service[bot] in #1627
• Support custom variable bindings (Activations) via cel test context by @copybara-service[bot] in #1677
• Remove back-compatibility aliases for old names for NavigableProtoAst. by @copybara-service[bot] in #1682
• Clean up references to old aliases for AST metadata types. by @copybara-service[bot] in #1683
• Add cel_cc_test demonstrating configuring a CelTestContext with a raw expression and custom cel::Compiler. by @copybara-service[bot] in #1679
• Clean up remaining references to old aliases for AST metadata types. by @copybara-service[bot] in #1684
• No public description by @copybara-service[bot] in #1685
• Refactor UTF8 encoding/decoding functions by @copybara-service[bot] in #1687
• No public description by @copybara-service[bot] in #1691
• Adding find and substring functions into byte_string by @copybara-service[bot] in #1689
• Setup of the coverage index. by @copybara-service[bot] in #1686
• Make CustomMapValueInterface::arena nullable. by @copybara-service[bot] in #1715
• No public description by @copybara-service[bot] in #1716
• Support for Dot graph via graphviz by @copybara-service[bot] in #1712
• Internal Changes by @copybara-service[bot] in #1713
• Print the returned error if a value was expected. by @copybara-service[bot] in #1725
• Add utility function to add minimally required descriptors to pool by @copybara-service[bot] in #1727
• Fix order of assertion parameters in the C++ testrunner. by @copybara-service[bot] in #1735
• [checker] Fix bug where recursive type could be inferred by @copybara-service[bot] in #1738
• Introduce string(bool) support at runtime by @copybara-service[bot] in #1739
• Custom activation factory for the C++ testrunner. by @copybara-service[bot] in #1737
• Custom assertion function for the C++ testrunner. by @copybara-service[bot] in #1741
• Fix crash in coverage collection of bool nodes which return an error. by @copybara-service[bot] in #1751
• cel_cc_test: Allow passing arguments to the underlying cc_test rule. by @copybara-service[bot] in #1752
• Add arbitrary count version for function adapter helpers. by @copybara-service[bot] in #1755
• Enable coverage collection via the runner library for a single test. by @copybara-service[bot] in #1747
• fixing compilation issues: clang, c++23 by @bomkvilt in #1764
• Use perfect forwarding in the function adapter instead of wrapping it into two layers of absl::AnyInvocable by @copybara-service[bot] in #1765
• Drop const qualification on built cel::Runtime. by @copybara-service[bot] in #1773
• Add is_contextual flag to FunctionDescriptor. by @copybara-service[bot] in #1775
• Add cel::Runtime version of memory safety test. by @copybara-service[bot] in #1776
• Replace call to proto2::Arena::Destroy with delete. by @copybara-service[bot] in #1785
• Enhance core string types with built-in manipulation methods by integrating common string operations, previously in extensions, as methods in the StringValue class. by @copybara-service[bot] in #1699

New Contributors

• @bomkvilt made their first contribution in #1764

Full Changelog: v0.13.0...v0.14.0