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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>
81 lines
2.2 KiB
YAML
81 lines
2.2 KiB
YAML
# Copyright (c) Microsoft Corporation.
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# Licensed under the MIT License.
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# Constructed Collections Test Suite
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# Validates ArrayCreate and SetCreate behavior including undefined handling.
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cases:
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- note: array_create_basic
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description: ArrayCreate assembles elements from registers
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literals:
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- 1
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- 2
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instruction_params:
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array_create_params:
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- dest: 3
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elements: [0, 1, 2]
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instructions:
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- "Load { dest: 0, literal_idx: 0 }"
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- "Load { dest: 1, literal_idx: 1 }"
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- "Add { dest: 2, left: 0, right: 1 }"
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- "ArrayCreate { params_index: 0 }"
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- "Return { value: 3 }"
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want_result:
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- 1
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- 2
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- 3
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- note: array_create_with_undefined
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description: ArrayCreate returns undefined if any source is undefined
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literals:
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- 1
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- {}
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- "missing"
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instruction_params:
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array_create_params:
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- dest: 2
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elements: [0, 1]
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instructions:
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- "Load { dest: 0, literal_idx: 0 }"
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- "Load { dest: 3, literal_idx: 1 }"
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- "Load { dest: 4, literal_idx: 2 }"
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- "Index { dest: 1, container: 3, key: 4 }"
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- "ArrayCreate { params_index: 0 }"
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- "Return { value: 2 }"
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want_result: "#undefined"
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- note: set_create_basic
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description: SetCreate deduplicates values and collects registers
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literals:
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- 1
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- 2
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instruction_params:
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set_create_params:
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- dest: 3
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elements: [0, 1, 2]
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instructions:
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- "Load { dest: 0, literal_idx: 0 }"
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- "Load { dest: 1, literal_idx: 1 }"
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- "Load { dest: 2, literal_idx: 0 }"
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- "SetCreate { params_index: 0 }"
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- "Return { value: 3 }"
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want_result:
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set!: [1, 2]
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- note: set_create_with_undefined
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description: SetCreate returns undefined if any source register is undefined
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literals:
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- {}
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- "missing"
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instruction_params:
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set_create_params:
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- dest: 3
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elements: [0]
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instructions:
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- "Load { dest: 1, literal_idx: 0 }"
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- "Load { dest: 2, literal_idx: 1 }"
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- "Index { dest: 0, container: 1, key: 2 }"
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- "SetCreate { params_index: 0 }"
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- "Return { value: 3 }"
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want_result: "#undefined"
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