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visitScope() — react Function Reference

Architecture documentation for the visitScope() function in PruneHoistedContexts.ts from the react codebase.

Function typescript BabelCompiler Validation calls 4

Entity Profile

Dependency Diagram

graph TD
  362d4dbc_afba_225c_96b2_ea1c61130620["visitScope()"]
  d5fccea7_98aa_783b_f46b_c702031e387a["Visitor"]
  362d4dbc_afba_225c_96b2_ea1c61130620 -->|defined in| d5fccea7_98aa_783b_f46b_c702031e387a
  2eebfc2b_b1f6_9f25_ad32_78be0b56f06b["traverseScope()"]
  362d4dbc_afba_225c_96b2_ea1c61130620 -->|calls| 2eebfc2b_b1f6_9f25_ad32_78be0b56f06b
  4acb57df_5348_9aab_9691_41cf35127db4["visitScope()"]
  362d4dbc_afba_225c_96b2_ea1c61130620 -->|calls| 4acb57df_5348_9aab_9691_41cf35127db4
  1e630bb6_97fc_d2ab_389a_d5737426d78f["push()"]
  362d4dbc_afba_225c_96b2_ea1c61130620 -->|calls| 1e630bb6_97fc_d2ab_389a_d5737426d78f
  6a49e893_9e21_81a7_6317_29730acf93c2["pop()"]
  362d4dbc_afba_225c_96b2_ea1c61130620 -->|calls| 6a49e893_9e21_81a7_6317_29730acf93c2
  style 362d4dbc_afba_225c_96b2_ea1c61130620 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/ReactiveScopes/PruneHoistedContexts.ts lines 65–81

  override visitScope(scope: ReactiveScopeBlock, state: VisitorState): void {
    state.activeScopes = state.activeScopes.push(
      new Set(scope.scope.declarations.keys()),
    );
    /**
     * Add declared but not initialized / assigned variables. This may include
     * function declarations that escape the memo block.
     */
    for (const decl of scope.scope.declarations.values()) {
      state.uninitialized.set(decl.identifier.id, {kind: 'unknown-kind'});
    }
    this.traverseScope(scope, state);
    state.activeScopes.pop();
    for (const decl of scope.scope.declarations.values()) {
      state.uninitialized.delete(decl.identifier.id);
    }
  }

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does visitScope() do?
visitScope() is a function in the react codebase, defined in compiler/packages/babel-plugin-react-compiler/src/ReactiveScopes/PruneHoistedContexts.ts.
Where is visitScope() defined?
visitScope() is defined in compiler/packages/babel-plugin-react-compiler/src/ReactiveScopes/PruneHoistedContexts.ts at line 65.
What does visitScope() call?
visitScope() calls 4 function(s): pop, push, traverseScope, visitScope.

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