poc: searching for new patterns inside callback function

[morgante]

Summary by CodeRabbit

• New Features

  • Introduced a LazyTraversal struct for enhanced lazy pattern matching.
  • Expanded the CallbackFn type to support lazy traversal in built-in functions.
  • Added functionality to retrieve variables by name within the current scope.

• Bug Fixes

  • Improved robustness of state management to prevent potential state leakage.

• Documentation

  • Updated documentation to reflect changes in state management and scope handling.

[coderabbitai]

Walkthrough

Walkthrough

The changes introduce a new LazyTraversal struct for lazy pattern matching, enhance state management in various pattern-related implementations by implementing explicit scope tracking, and modify the State struct to include scope awareness with new methods for entering and exiting scopes, as well as for variable lookup.

Changes

File Path	Change Summary
crates/core/src/built_in_functions.rs	Updated CallbackFn type to include a mutable reference to LazyTraversal, enhancing callback functionality.
crates/core/src/lazy.rs	Introduced LazyTraversal struct with a matches method for pattern matching, including a test module to validate functionality.
crates/core/src/lib.rs	Added new module lazy to organize related functionality.
crates/core/src/test_callback.rs	Modified test_callback function to include an additional parameter in the callback signature.
crates/grit-pattern-matcher/src/pattern/function_definition.rs	Updated FunctionDefinition to use structured scope management with enter_scope and exit_scope methods, enhancing state handling during function execution.
crates/grit-pattern-matcher/src/pattern/pattern_definition.rs	Updated PatternDefinition to implement explicit scope tracking by replacing reset_vars with enter_scope and exit_scope, improving clarity in state management during pattern execution.
crates/grit-pattern-matcher/src/pattern/predicate_definition.rs	Enhanced PredicateDefinition to manage state scope explicitly using enter_scope and exit_scope, ensuring proper tracking of variable states during predicate execution.
crates/grit-pattern-matcher/src/pattern/state.rs	Added a current_scope field to State, renamed reset_vars to enter_scope, introduced exit_scope, and added find_var_in_scope method for variable retrieval, improving scope management and variable tracking.

Sequence Diagram(s)

sequenceDiagram
    participant State
    participant LazyTraversal
    participant FunctionDefinition
    participant PatternDefinition
    participant PredicateDefinition

    State->>LazyTraversal: Create new instance
    LazyTraversal->>State: Initialize with root pattern
    State->>FunctionDefinition: Enter function scope
    FunctionDefinition->>State: Execute function
    State-->>FunctionDefinition: Return function result
    State->>PatternDefinition: Enter pattern scope
    PatternDefinition->>State: Execute pattern
    State-->>PatternDefinition: Return pattern result
    State->>PredicateDefinition: Enter predicate scope
    PredicateDefinition->>State: Execute predicate
    State-->>PredicateDefinition: Return predicate result
    State->>LazyTraversal: Perform matches
    LazyTraversal-->>State: Return match result

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