feat: Implement Tier 1 Core Language Features - Enums, Options, Maps#18

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mjm918 wants to merge 13 commits intomainfrom

fix/codegen-compilation-errors

Commits on Jan 20, 2026

fix(codegen): reduce Rust compilation errors from 37 to 12

mjm918
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claude
committed

Commits on Jan 21, 2026

feat(codegen): add Cranelift JIT backend and runtime system

mjm918
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claude
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feat(ast): add Pattern type for destructuring in switch cases

mjm918
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claude
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fix(ast): improve Pattern type consistency with other AST nodes

mjm918
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claude
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feat(parser): add pattern parsing for switch cases

mjm918
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claude
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feat(codegen): track enum definitions with variant metadata

mjm918
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claude
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feat(codegen): implement enum variant construction

mjm918
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claude
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feat(codegen): implement enum pattern matching with destructuring

mjm918
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claude
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feat(codegen): implement option type with some/none and methods

mjm918
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claude
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feat(runtime): add hash map implementation

mjm918
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claude
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feat(codegen): implement map literals and indexing

mjm918
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claude
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test: add Tier 1 features integration test

mjm918
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claude
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feat(codegen): implement memory management tests and enhanced heap cleanup
mjm918
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