Function getConstantExtractionAtIndex

test/fixtures/snapshot/typescript.js:160574–160583

(targetRange, context, requestedChangesIndex)

                return extractFunctionInScope(target, scopes[requestedChangesIndex], usagesPerScope[requestedChangesIndex], exposedVariableDeclarations, targetRange, context);
            }
            function getConstantExtractionAtIndex(targetRange, context, requestedChangesIndex) {
                var _a = getPossibleExtractionsWorker(targetRange, context), scopes = _a.scopes, _b = _a.readsAndWrites, target = _b.target, usagesPerScope = _b.usagesPerScope, constantErrorsPerScope = _b.constantErrorsPerScope, exposedVariableDeclarations = _b.exposedVariableDeclarations;
                ts.Debug.assert(!constantErrorsPerScope[requestedChangesIndex].length, "The extraction went missing? How?");
                ts.Debug.assert(exposedVariableDeclarations.length === 0, "Extract constant accepted a range containing a variable declaration?");
                context.cancellationToken.throwIfCancellationRequested();
                var expression = ts.isExpression(target)
                    ? target
                    : target.statements[0].expression;
                return extractConstantInScope(expression, scopes[requestedChangesIndex], usagesPerScope[requestedChangesIndex], targetRange.facts, context);
            }
            /**
             * Given a piece of text to extract ('targetRange'), computes a list of possible extractions.
             * Each returned ExtractResultForScope corresponds to a possible target scope and is either a set of changes