areSourceMapsAppliedToErrors() — react Function Reference

Architecture documentation for the areSourceMapsAppliedToErrors() function in ErrorTester.js from the react codebase.

Function javascript BabelCompiler Validation calls 1 called by 1

Entity Profile

BabelCompiler→ Validation→ areSourceMapsAppliedToErrors() — react Function Reference

Dependency Diagram

graph TD
  e143ca4a_ec05_68bf_1723_c70d5b1ab460["areSourceMapsAppliedToErrors()"]
  622e536b_9c72_69d0_58d6_fc8851cbebb0["ErrorTester.js"]
  e143ca4a_ec05_68bf_1723_c70d5b1ab460 -->|defined in| 622e536b_9c72_69d0_58d6_fc8851cbebb0
  9d4ba273_e848_2a3f_3413_5c52ec3c7da7["parseSourceAST()"]
  9d4ba273_e848_2a3f_3413_5c52ec3c7da7 -->|calls| e143ca4a_ec05_68bf_1723_c70d5b1ab460
  48652f6c_0089_af78_cb48_b9f55b933050["testErrorStack()"]
  e143ca4a_ec05_68bf_1723_c70d5b1ab460 -->|calls| 48652f6c_0089_af78_cb48_b9f55b933050
  style e143ca4a_ec05_68bf_1723_c70d5b1ab460 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-devtools-shared/src/hooks/ErrorTester.js lines 18–34

export function areSourceMapsAppliedToErrors(): boolean {
  if (sourceMapsAreAppliedToErrors === null) {
    try {
      testErrorStack();
      sourceMapsAreAppliedToErrors = false;
    } catch (error) {
      const parsed = ErrorStackParser.parse(error);
      const topStackFrame = parsed[0];
      const lineNumber = topStackFrame.lineNumber;
      if (lineNumber === SOURCE_STACK_FRAME_LINE_NUMBER) {
        sourceMapsAreAppliedToErrors = true;
      }
    }
  }

  return sourceMapsAreAppliedToErrors === true;
}