a187a8992d
feat: go-to-def and find-references on control-flow keywords fix #17517. This PR implements **go-to-definition** and **find-references** functionalities for control flow keywords, which is similar to the behaviors in the `highlight-related` module. Besides, this PR also fixes some incorrect behaviors in `highlight-related`. ## Changes 1. **Support for go-to-definition on control flow keywords**: This PR introduces functionality allowing users to navigate on the definition of control flow keywords (`return`, `break`, `continue`). Commit: 2a3244ee147f898dd828c06352645ae1713c260f..7391e7a608634709db002a4cb09229de4d12c056. 2. **Bug fixes and refactoring in highlight-related**: - **Handling return/break/continue within try_blocks**: This PR adjusted the behavior of these keywords when they occur within `try_blocks`. When encounter these keywords, the program should exit the outer function or loop which containing the `try_blocks`, rather than the `try_blocks` itself; while the `?` will cause the program to exit `try_blocks`. Commit: 59d697e807f0197f59814b37dca1563959da4aa1. - **Support highlighting keywords in macro expansion for highlight-related**: Commit: 88df24f01727c23a667a763ee3ee0cec22d5ad52. - Detailed description for the bug fixes + The previous implementation of `preorder_expr` incorrectly treated `try_blocks` as new contexts, thereby r-a will not continue to traverse inner `return` and `break/continue` statements. To resolve this, a new function `preorder_expr_with_ctx_checker` has been added, allowing users to specify which expressions to skip. * For example, when searching for the `?` in the context, r-a should skip `try_blocks` where the `?` insides just works for `try_blocks`. But when search for the `return` keyword, r-a should collect both the `return` keywords inside and outside the `try_blocks` + Thus, this PR added `WalkExpandedExprCtx` (builder pattern). It offers the following improvements: customizable context skipping, maintenance of loop depth (for `break`/`continue`), and handling macro expansion during traversal. 3. **Support for find-references on control flow keywords**: This PR enables users to find all references to control flow keywords. Commit: 9202a33f81218fb9c2edb5d42e6b4de85b0323a8. |
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