Function walkVariables

src/test/logger.ts:22–71

(
  dap: Dap.TestApi,
  variable: Dap.Variable,
  walker: (v: Dap.Variable, depth: number) => Promise<boolean> | boolean,
  depth = 0,
  format?: Dap.ValueFormat,
)

 * first-search until walker returns false.
 */
export const walkVariables = async (
  dap: Dap.TestApi,
  variable: Dap.Variable,
  walker: (v: Dap.Variable, depth: number) => Promise<boolean> | boolean,
  depth = 0,
  format?: Dap.ValueFormat,
): Promise<void> => {
  if (!(await walker(variable, depth))) {
    return;
  }

  if (variable.variablesReference === undefined) {
    return;
  }

  const hasHints = typeof variable.namedVariables === 'number'
    || typeof variable.indexedVariables === 'number';
  if (hasHints) {
    if (variable.namedVariables) {
      const named = await dap.variables({
        variablesReference: variable.variablesReference,
        filter: 'named',
        format,
      });
      for (const variable of named.variables) {
        await walkVariables(dap, variable, walker, depth + 1, format);
      }
    }
    if (variable.indexedVariables) {
      const indexed = await dap.variables({
        variablesReference: variable.variablesReference,
        filter: 'indexed',
        start: 0,
        count: variable.indexedVariables,
        format,
      });
      for (const variable of indexed.variables) {
        await walkVariables(dap, variable, walker, depth + 1);
      }
    }
  } else {
    const all = await dap.variables({
      variablesReference: variable.variablesReference,
      format,
    });
    for (const variable of all.variables) {
      await walkVariables(dap, variable, walker, depth + 1, format);
    }
  }
};

export class Logger {
  private _dap: Dap.TestApi;