withIndent()

in escodegen.js [1023:1098]

• 63 lines of code
• 25 McCabe index (conditional complexity)

            withIndent(function () {
                // handle functions without any code
                if (stmt.body.length === 0 && preserveBlankLines) {
                    range = stmt.range;
                    if (range[1] - range[0] > 2) {
                        content = sourceCode.substring(range[0] + 1, range[1] - 1);
                        if (content[0] === '\n') {
                            result = ['{'];
                        }
                        result.push(content);
                    }
                }

                var i, iz, fragment, bodyFlags;
                bodyFlags = S_TFFF;
                if (flags & F_FUNC_BODY) {
                    bodyFlags |= F_DIRECTIVE_CTX;
                }

                for (i = 0, iz = stmt.body.length; i < iz; ++i) {
                    if (preserveBlankLines) {
                        // handle spaces before the first line
                        if (i === 0) {
                            if (stmt.body[0].leadingComments) {
                                range = stmt.body[0].leadingComments[0].extendedRange;
                                content = sourceCode.substring(range[0], range[1]);
                                if (content[0] === '\n') {
                                    result = ['{'];
                                }
                            }
                            if (!stmt.body[0].leadingComments) {
                                generateBlankLines(stmt.range[0], stmt.body[0].range[0], result);
                            }
                        }

                        // handle spaces between lines
                        if (i > 0) {
                            if (!stmt.body[i - 1].trailingComments  && !stmt.body[i].leadingComments) {
                                generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
                            }
                        }
                    }

                    if (i === iz - 1) {
                        bodyFlags |= F_SEMICOLON_OPT;
                    }

                    if (stmt.body[i].leadingComments && preserveBlankLines) {
                        fragment = that.generateStatement(stmt.body[i], bodyFlags);
                    } else {
                        fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags));
                    }

                    result.push(fragment);
                    if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
                        if (preserveBlankLines && i < iz - 1) {
                            // don't add a new line if there are leading coments
                            // in the next statement
                            if (!stmt.body[i + 1].leadingComments) {
                                result.push(newline);
                            }
                        } else {
                            result.push(newline);
                        }
                    }

                    if (preserveBlankLines) {
                        // handle spaces after the last line
                        if (i === iz - 1) {
                            if (!stmt.body[i].trailingComments) {
                                generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
                            }
                        }
                    }
                }
            });