Function getLeadingLineTerminatorCount

test/fixtures/snapshot/typescript.js:114114–114159

(parentNode, children, format)

            }
        }
        function getLeadingLineTerminatorCount(parentNode, children, format) {
            if (format & 2 /* ListFormat.PreserveLines */ || preserveSourceNewlines) {
                if (format & 65536 /* ListFormat.PreferNewLine */) {
                    return 1;
                }
                var firstChild_1 = children[0];
                if (firstChild_1 === undefined) {
                    return !parentNode || currentSourceFile && ts.rangeIsOnSingleLine(parentNode, currentSourceFile) ? 0 : 1;
                }
                if (firstChild_1.pos === nextListElementPos) {
                    // If this child starts at the beginning of a list item in a parent list, its leading
                    // line terminators have already been written as the separating line terminators of the
                    // parent list. Example:
                    //
                    // class Foo {
                    //   constructor() {}
                    //   public foo() {}
                    // }
                    //
                    // The outer list is the list of class members, with one line terminator between the
                    // constructor and the method. The constructor is written, the separating line terminator
                    // is written, and then we start emitting the method. Its modifiers ([public]) constitute an inner
                    // list, so we look for its leading line terminators. If we didn't know that we had already
                    // written a newline as part of the parent list, it would appear that we need to write a
                    // leading newline to start the modifiers.
                    return 0;
                }
                if (firstChild_1.kind === 11 /* SyntaxKind.JsxText */) {
                    // JsxText will be written with its leading whitespace, so don't add more manually.
                    return 0;
                }
                if (currentSourceFile && parentNode &&
                    !ts.positionIsSynthesized(parentNode.pos) &&
                    !ts.nodeIsSynthesized(firstChild_1) &&
                    (!firstChild_1.parent || ts.getOriginalNode(firstChild_1.parent) === ts.getOriginalNode(parentNode))) {
                    if (preserveSourceNewlines) {
                        return getEffectiveLines(function (includeComments) { return ts.getLinesBetweenPositionAndPrecedingNonWhitespaceCharacter(firstChild_1.pos, parentNode.pos, currentSourceFile, includeComments); });
                    }
                    return ts.rangeStartPositionsAreOnSameLine(parentNode, firstChild_1, currentSourceFile) ? 0 : 1;
                }
                if (synthesizedNodeStartsOnNewLine(firstChild_1, format)) {
                    return 1;
                }
            }
            return format & 1 /* ListFormat.MultiLine */ ? 1 : 0;
        }
        function getSeparatingLineTerminatorCount(previousNode, nextNode, format) {
            if (format & 2 /* ListFormat.PreserveLines */ || preserveSourceNewlines) {
                if (previousNode === undefined || nextNode === undefined) {