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Reduce string allocations in ExecutionScopes #2304

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Reduce string allocations in ExecutionScopes#2304
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performancePerformance-related improvements or regressionsresearchOpen questions requiring either research or requirements gathering

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@gabrielbosio
gabrielbosio
opened on Jan 21, 2026

Line 59 of exec_scopes.rs allocates String for every variable: https://github.com/lambdaclass/cairo-vm/blob/8d4858689e01d439633375d70b8dc12053680a6a/vm/src/types/exec_scope.rs#L59

Use Cow<'static, str> instead.

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  1. gabrielbosio
    added this to Starkneton Jan 21, 2026
  2. gabrielbosio
    added
    researchOpen questions requiring either research or requirements gathering
    performancePerformance-related improvements or regressions
    on Jan 21, 2026
  3. gabrielbosio
    moved this to Backlog in Starkneton Jan 21, 2026
  4. gabrielbosio
    changed the title [-]String allocations in `ExecutionScopes`[/-] [+]Reduce string allocations in `ExecutionScopes`[/+] on Jan 21, 2026
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