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* feat!: add Rego Virtual Machine (RVM) implementation This commit introduces a register-based virtual machine for executing Rego policies with bytecode-style instructions. Unlike the existing tree-walking interpreter, the RVM compiles policies into instruction sequences that operate on virtual registers, offering better performance and optimization potential. Core Components: Instruction Set Architecture: - Define instruction types for data operations, control flow, and builtins - Implement instruction parameter encoding and display formatting - Add instruction parser with comprehensive test coverage Virtual Machine Engine: - Register-based execution model with program counter management - Loop execution supporting iterators, comprehensions, and quantifiers - Function call handling with argument evaluation and context management - Rule evaluation with default value resolution and virtual data support - Arithmetic and comparison operation implementations Program Representation: - Program listing builder with instruction sequencing - Rule tree construction for organizing policy rules - Binary and JSON serialization for compiled programs - Recompilation support for program modification Testing Infrastructure: - Extensive YAML test suites covering all VM features - Rust unit tests for VM execution and instruction parsing - Test suites for loops, comprehensions, builtins, and control flow BREAKING CHANGE: Introduces new VM execution path alongside interpreter Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com> * docs: add detailed RVM architecture references Introduce architecture.md explaining program artifacts, serialization, and runtime subsystems. Document the full opcode catalog in instruction-set.md, including operands, parameter tables, and outcomes. Walk through execution flow, stacks, and operational guidance in vm-runtime.md, tying the runtime to the new architecture docs. Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com> --------- Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
29 lines
925 B
YAML
29 lines
925 B
YAML
# Host Await Failures Test Suite
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# Validates HostAwait error surfaces under different execution modes.
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cases:
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- note: host_await_missing_response
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description: Run-to-completion mode errors when responses absent
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literals:
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- "request"
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instructions:
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- "Load { dest: 0, literal_idx: 0 }"
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- "HostAwait { dest: 1, arg: 0, id: 0 }"
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- "Return { value: 1 }"
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want_error: "HostAwait executed but no response provided"
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- note: host_await_ignore_flag
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description: ignore_run_to_completion_hostawait_failure guards missing responses
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literals:
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- "request"
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- "response"
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instructions:
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- "Load { dest: 0, literal_idx: 0 }"
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- "HostAwait { dest: 1, arg: 0, id: 0 }"
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- "Return { value: 1 }"
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host_await_responses_suspendable:
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- id: "request"
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value: "response"
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ignore_run_to_completion_hostawait_failure: true
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want_result: "response"
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