@azure-tools/codegen
Version:
Autorest Code generator common and base classes
828 lines • 34.6 kB
JavaScript
;
/**
* This is a copy of https://github.com/nodeca/js-yaml/blob/master/lib/dumper.js LICENSED under MIT
*
* It is modified to improve performance when finding duplicate refs.
* Instead of using an array with indexOf resulting in O(n2) it was changed to use es6 Set.
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.dump = void 0;
/* eslint-disable prefer-const */
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-nocheck
/*eslint-disable no-use-before-define*/
const common_1 = __importDefault(require("./common"));
const { DEFAULT_SCHEMA, YAMLException } = require("js-yaml");
const _toString = Object.prototype.toString;
const _hasOwnProperty = Object.prototype.hasOwnProperty;
const CHAR_BOM = 0xfeff;
const CHAR_TAB = 0x09; /* Tab */
const CHAR_LINE_FEED = 0x0a; /* LF */
const CHAR_CARRIAGE_RETURN = 0x0d; /* CR */
const CHAR_SPACE = 0x20; /* Space */
const CHAR_EXCLAMATION = 0x21; /* ! */
const CHAR_DOUBLE_QUOTE = 0x22; /* " */
const CHAR_SHARP = 0x23; /* # */
const CHAR_PERCENT = 0x25; /* % */
const CHAR_AMPERSAND = 0x26; /* & */
const CHAR_SINGLE_QUOTE = 0x27; /* ' */
const CHAR_ASTERISK = 0x2a; /* * */
const CHAR_COMMA = 0x2c; /* , */
const CHAR_MINUS = 0x2d; /* - */
const CHAR_COLON = 0x3a; /* : */
const CHAR_EQUALS = 0x3d; /* = */
const CHAR_GREATER_THAN = 0x3e; /* > */
const CHAR_QUESTION = 0x3f; /* ? */
const CHAR_COMMERCIAL_AT = 0x40; /* @ */
const CHAR_LEFT_SQUARE_BRACKET = 0x5b; /* [ */
const CHAR_RIGHT_SQUARE_BRACKET = 0x5d; /* ] */
const CHAR_GRAVE_ACCENT = 0x60; /* ` */
const CHAR_LEFT_CURLY_BRACKET = 0x7b; /* { */
const CHAR_VERTICAL_LINE = 0x7c; /* | */
const CHAR_RIGHT_CURLY_BRACKET = 0x7d; /* } */
const ESCAPE_SEQUENCES = {};
ESCAPE_SEQUENCES[0x00] = "\\0";
ESCAPE_SEQUENCES[0x07] = "\\a";
ESCAPE_SEQUENCES[0x08] = "\\b";
ESCAPE_SEQUENCES[0x09] = "\\t";
ESCAPE_SEQUENCES[0x0a] = "\\n";
ESCAPE_SEQUENCES[0x0b] = "\\v";
ESCAPE_SEQUENCES[0x0c] = "\\f";
ESCAPE_SEQUENCES[0x0d] = "\\r";
ESCAPE_SEQUENCES[0x1b] = "\\e";
ESCAPE_SEQUENCES[0x22] = '\\"';
ESCAPE_SEQUENCES[0x5c] = "\\\\";
ESCAPE_SEQUENCES[0x85] = "\\N";
ESCAPE_SEQUENCES[0xa0] = "\\_";
ESCAPE_SEQUENCES[0x2028] = "\\L";
ESCAPE_SEQUENCES[0x2029] = "\\P";
const DEPRECATED_BOOLEANS_SYNTAX = [
"y",
"Y",
"yes",
"Yes",
"YES",
"on",
"On",
"ON",
"n",
"N",
"no",
"No",
"NO",
"off",
"Off",
"OFF",
];
const DEPRECATED_BASE60_SYNTAX = /^[-+]?[0-9_]+(?::[0-9_]+)+(?:\.[0-9_]*)?$/;
function compileStyleMap(schema, map) {
let result, keys, index, length, tag, style, type;
if (map === null)
return {};
result = {};
keys = Object.keys(map);
for (index = 0, length = keys.length; index < length; index += 1) {
tag = keys[index];
style = String(map[tag]);
if (tag.slice(0, 2) === "!!") {
tag = "tag:yaml.org,2002:" + tag.slice(2);
}
type = schema.compiledTypeMap["fallback"][tag];
if (type && _hasOwnProperty.call(type.styleAliases, style)) {
style = type.styleAliases[style];
}
result[tag] = style;
}
return result;
}
function encodeHex(character) {
let string, handle, length;
string = character.toString(16).toUpperCase();
if (character <= 0xff) {
handle = "x";
length = 2;
}
else if (character <= 0xffff) {
handle = "u";
length = 4;
}
else if (character <= 0xffffffff) {
handle = "U";
length = 8;
}
else {
throw new YAMLException("code point within a string may not be greater than 0xFFFFFFFF");
}
return "\\" + handle + common_1.default.repeat("0", length - string.length) + string;
}
const QUOTING_TYPE_SINGLE = 1, QUOTING_TYPE_DOUBLE = 2;
function State(options) {
this.schema = options["schema"] || DEFAULT_SCHEMA;
this.indent = Math.max(1, options["indent"] || 2);
this.noArrayIndent = options["noArrayIndent"] || false;
this.skipInvalid = options["skipInvalid"] || false;
this.flowLevel = common_1.default.isNothing(options["flowLevel"]) ? -1 : options["flowLevel"];
this.styleMap = compileStyleMap(this.schema, options["styles"] || null);
this.sortKeys = options["sortKeys"] || false;
this.lineWidth = options["lineWidth"] || 80;
this.noRefs = options["noRefs"] || false;
this.noCompatMode = options["noCompatMode"] || false;
this.condenseFlow = options["condenseFlow"] || false;
this.quotingType = options["quotingType"] === '"' ? QUOTING_TYPE_DOUBLE : QUOTING_TYPE_SINGLE;
this.forceQuotes = options["forceQuotes"] || false;
this.replacer = typeof options["replacer"] === "function" ? options["replacer"] : null;
this.implicitTypes = this.schema.compiledImplicit;
this.explicitTypes = this.schema.compiledExplicit;
this.tag = null;
this.result = "";
this.duplicates = [];
this.usedDuplicates = null;
}
// Indents every line in a string. Empty lines (\n only) are not indented.
function indentString(string, spaces) {
let ind = common_1.default.repeat(" ", spaces), position = 0, next = -1, result = "", line, length = string.length;
while (position < length) {
next = string.indexOf("\n", position);
if (next === -1) {
line = string.slice(position);
position = length;
}
else {
line = string.slice(position, next + 1);
position = next + 1;
}
if (line.length && line !== "\n")
result += ind;
result += line;
}
return result;
}
function generateNextLine(state, level) {
return "\n" + common_1.default.repeat(" ", state.indent * level);
}
function testImplicitResolving(state, str) {
let index, length, type;
for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
type = state.implicitTypes[index];
if (type.resolve(str)) {
return true;
}
}
return false;
}
// [33] s-white ::= s-space | s-tab
function isWhitespace(c) {
return c === CHAR_SPACE || c === CHAR_TAB;
}
// Returns true if the character can be printed without escaping.
// From YAML 1.2: "any allowed characters known to be non-printable
// should also be escaped. [However,] This isn’t mandatory"
// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
function isPrintable(c) {
return ((0x00020 <= c && c <= 0x00007e) ||
(0x000a1 <= c && c <= 0x00d7ff && c !== 0x2028 && c !== 0x2029) ||
(0x0e000 <= c && c <= 0x00fffd && c !== CHAR_BOM) ||
(0x10000 <= c && c <= 0x10ffff));
}
// [34] ns-char ::= nb-char - s-white
// [27] nb-char ::= c-printable - b-char - c-byte-order-mark
// [26] b-char ::= b-line-feed | b-carriage-return
// Including s-white (for some reason, examples doesn't match specs in this aspect)
// ns-char ::= c-printable - b-line-feed - b-carriage-return - c-byte-order-mark
function isNsCharOrWhitespace(c) {
return (isPrintable(c) &&
c !== CHAR_BOM &&
// - b-char
c !== CHAR_CARRIAGE_RETURN &&
c !== CHAR_LINE_FEED);
}
// [127] ns-plain-safe(c) ::= c = flow-out ⇒ ns-plain-safe-out
// c = flow-in ⇒ ns-plain-safe-in
// c = block-key ⇒ ns-plain-safe-out
// c = flow-key ⇒ ns-plain-safe-in
// [128] ns-plain-safe-out ::= ns-char
// [129] ns-plain-safe-in ::= ns-char - c-flow-indicator
// [130] ns-plain-char(c) ::= ( ns-plain-safe(c) - “:” - “#” )
// | ( /* An ns-char preceding */ “#” )
// | ( “:” /* Followed by an ns-plain-safe(c) */ )
function isPlainSafe(c, prev, inblock) {
const cIsNsCharOrWhitespace = isNsCharOrWhitespace(c);
const cIsNsChar = cIsNsCharOrWhitespace && !isWhitespace(c);
return (
// ns-plain-safe
((inblock // c = flow-in
? cIsNsCharOrWhitespace
: cIsNsCharOrWhitespace &&
// - c-flow-indicator
c !== CHAR_COMMA &&
c !== CHAR_LEFT_SQUARE_BRACKET &&
c !== CHAR_RIGHT_SQUARE_BRACKET &&
c !== CHAR_LEFT_CURLY_BRACKET &&
c !== CHAR_RIGHT_CURLY_BRACKET) &&
// ns-plain-char
c !== CHAR_SHARP && // false on '#'
!(prev === CHAR_COLON && !cIsNsChar)) || // false on ': '
(isNsCharOrWhitespace(prev) && !isWhitespace(prev) && c === CHAR_SHARP) || // change to true on '[^ ]#'
(prev === CHAR_COLON && cIsNsChar)); // change to true on ':[^ ]'
}
// Simplified test for values allowed as the first character in plain style.
function isPlainSafeFirst(c) {
// Uses a subset of ns-char - c-indicator
// where ns-char = nb-char - s-white.
// No support of ( ( “?” | “:” | “-” ) /* Followed by an ns-plain-safe(c)) */ ) part
return (isPrintable(c) &&
c !== CHAR_BOM &&
!isWhitespace(c) && // - s-white
// - (c-indicator ::=
// “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
c !== CHAR_MINUS &&
c !== CHAR_QUESTION &&
c !== CHAR_COLON &&
c !== CHAR_COMMA &&
c !== CHAR_LEFT_SQUARE_BRACKET &&
c !== CHAR_RIGHT_SQUARE_BRACKET &&
c !== CHAR_LEFT_CURLY_BRACKET &&
c !== CHAR_RIGHT_CURLY_BRACKET &&
// | “#” | “&” | “*” | “!” | “|” | “=” | “>” | “'” | “"”
c !== CHAR_SHARP &&
c !== CHAR_AMPERSAND &&
c !== CHAR_ASTERISK &&
c !== CHAR_EXCLAMATION &&
c !== CHAR_VERTICAL_LINE &&
c !== CHAR_EQUALS &&
c !== CHAR_GREATER_THAN &&
c !== CHAR_SINGLE_QUOTE &&
c !== CHAR_DOUBLE_QUOTE &&
// | “%” | “@” | “`”)
c !== CHAR_PERCENT &&
c !== CHAR_COMMERCIAL_AT &&
c !== CHAR_GRAVE_ACCENT);
}
// Simplified test for values allowed as the last character in plain style.
function isPlainSafeLast(c) {
// just not whitespace or colon, it will be checked to be plain character later
return !isWhitespace(c) && c !== CHAR_COLON;
}
// Same as 'string'.codePointAt(pos), but works in older browsers.
function codePointAt(string, pos) {
let first = string.charCodeAt(pos), second;
if (first >= 0xd800 && first <= 0xdbff && pos + 1 < string.length) {
second = string.charCodeAt(pos + 1);
if (second >= 0xdc00 && second <= 0xdfff) {
// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
return (first - 0xd800) * 0x400 + second - 0xdc00 + 0x10000;
}
}
return first;
}
// Determines whether block indentation indicator is required.
function needIndentIndicator(string) {
const leadingSpaceRe = /^\n* /;
return leadingSpaceRe.test(string);
}
const STYLE_PLAIN = 1, STYLE_SINGLE = 2, STYLE_LITERAL = 3, STYLE_FOLDED = 4, STYLE_DOUBLE = 5;
// Determines which scalar styles are possible and returns the preferred style.
// lineWidth = -1 => no limit.
// Pre-conditions: str.length > 0.
// Post-conditions:
// STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
// STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
// STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth, testAmbiguousType, quotingType, forceQuotes, inblock) {
let i;
let char = 0;
let prevChar = null;
let hasLineBreak = false;
let hasFoldableLine = false; // only checked if shouldTrackWidth
const shouldTrackWidth = lineWidth !== -1;
let previousLineBreak = -1; // count the first line correctly
let plain = isPlainSafeFirst(codePointAt(string, 0)) && isPlainSafeLast(codePointAt(string, string.length - 1));
if (singleLineOnly || forceQuotes) {
// Case: no block styles.
// Check for disallowed characters to rule out plain and single.
for (i = 0; i < string.length; char >= 0x10000 ? (i += 2) : i++) {
char = codePointAt(string, i);
if (!isPrintable(char)) {
return STYLE_DOUBLE;
}
plain = plain && isPlainSafe(char, prevChar, inblock);
prevChar = char;
}
}
else {
// Case: block styles permitted.
for (i = 0; i < string.length; char >= 0x10000 ? (i += 2) : i++) {
char = codePointAt(string, i);
if (char === CHAR_LINE_FEED) {
hasLineBreak = true;
// Check if any line can be folded.
if (shouldTrackWidth) {
hasFoldableLine =
hasFoldableLine ||
// Foldable line = too long, and not more-indented.
(i - previousLineBreak - 1 > lineWidth && string[previousLineBreak + 1] !== " ");
previousLineBreak = i;
}
}
else if (!isPrintable(char)) {
return STYLE_DOUBLE;
}
plain = plain && isPlainSafe(char, prevChar, inblock);
prevChar = char;
}
// in case the end is missing a \n
hasFoldableLine =
hasFoldableLine ||
(shouldTrackWidth && i - previousLineBreak - 1 > lineWidth && string[previousLineBreak + 1] !== " ");
}
// Although every style can represent \n without escaping, prefer block styles
// for multiline, since they're more readable and they don't add empty lines.
// Also prefer folding a super-long line.
if (!hasLineBreak && !hasFoldableLine) {
// Strings interpretable as another type have to be quoted;
// e.g. the string 'true' vs. the boolean true.
if (plain && !forceQuotes && !testAmbiguousType(string)) {
return STYLE_PLAIN;
}
return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
}
// Edge case: block indentation indicator can only have one digit.
if (indentPerLevel > 9 && needIndentIndicator(string)) {
return STYLE_DOUBLE;
}
// At this point we know block styles are valid.
// Prefer literal style unless we want to fold.
if (!forceQuotes) {
return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
}
return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;
}
// Note: line breaking/folding is implemented for only the folded style.
// NB. We drop the last trailing newline (if any) of a returned block scalar
// since the dumper adds its own newline. This always works:
// • No ending newline => unaffected; already using strip "-" chomping.
// • Ending newline => removed then restored.
// Importantly, this keeps the "+" chomp indicator from gaining an extra line.
function writeScalar(state, string, level, iskey, inblock) {
state.dump = (function () {
if (string.length === 0) {
return state.quotingType === QUOTING_TYPE_DOUBLE ? '""' : "''";
}
if (!state.noCompatMode) {
if (DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1 || DEPRECATED_BASE60_SYNTAX.test(string)) {
return state.quotingType === QUOTING_TYPE_DOUBLE ? '"' + string + '"' : "'" + string + "'";
}
}
const indent = state.indent * Math.max(1, level); // no 0-indent scalars
// As indentation gets deeper, let the width decrease monotonically
// to the lower bound min(state.lineWidth, 40).
// Note that this implies
// state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
// state.lineWidth > 40 + state.indent: width decreases until the lower bound.
// This behaves better than a constant minimum width which disallows narrower options,
// or an indent threshold which causes the width to suddenly increase.
const lineWidth = state.lineWidth === -1 ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
// Without knowing if keys are implicit/explicit, assume implicit for safety.
const singleLineOnly = iskey ||
// No block styles in flow mode.
(state.flowLevel > -1 && level >= state.flowLevel);
function testAmbiguity(string) {
return testImplicitResolving(state, string);
}
switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth, testAmbiguity, state.quotingType, state.forceQuotes && !iskey, inblock)) {
case STYLE_PLAIN:
return string;
case STYLE_SINGLE:
return "'" + string.replace(/'/g, "''") + "'";
case STYLE_LITERAL:
return "|" + blockHeader(string, state.indent) + dropEndingNewline(indentString(string, indent));
case STYLE_FOLDED:
return (">" +
blockHeader(string, state.indent) +
dropEndingNewline(indentString(foldString(string, lineWidth), indent)));
case STYLE_DOUBLE:
return '"' + escapeString(string, lineWidth) + '"';
default:
throw new YAMLException("impossible error: invalid scalar style");
}
})();
}
// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
function blockHeader(string, indentPerLevel) {
const indentIndicator = needIndentIndicator(string) ? String(indentPerLevel) : "";
// note the special case: the string '\n' counts as a "trailing" empty line.
const clip = string[string.length - 1] === "\n";
const keep = clip && (string[string.length - 2] === "\n" || string === "\n");
const chomp = keep ? "+" : clip ? "" : "-";
return indentIndicator + chomp + "\n";
}
// (See the note for writeScalar.)
function dropEndingNewline(string) {
return string[string.length - 1] === "\n" ? string.slice(0, -1) : string;
}
// Note: a long line without a suitable break point will exceed the width limit.
// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
function foldString(string, width) {
// In folded style, $k$ consecutive newlines output as $k+1$ newlines—
// unless they're before or after a more-indented line, or at the very
// beginning or end, in which case $k$ maps to $k$.
// Therefore, parse each chunk as newline(s) followed by a content line.
const lineRe = /(\n+)([^\n]*)/g;
// first line (possibly an empty line)
let result = (function () {
let nextLF = string.indexOf("\n");
nextLF = nextLF !== -1 ? nextLF : string.length;
lineRe.lastIndex = nextLF;
return foldLine(string.slice(0, nextLF), width);
})();
// If we haven't reached the first content line yet, don't add an extra \n.
let prevMoreIndented = string[0] === "\n" || string[0] === " ";
let moreIndented;
// rest of the lines
let match;
while ((match = lineRe.exec(string))) {
const prefix = match[1], line = match[2];
moreIndented = line[0] === " ";
result += prefix + (!prevMoreIndented && !moreIndented && line !== "" ? "\n" : "") + foldLine(line, width);
prevMoreIndented = moreIndented;
}
return result;
}
// Greedy line breaking.
// Picks the longest line under the limit each time,
// otherwise settles for the shortest line over the limit.
// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
function foldLine(line, width) {
if (line === "" || line[0] === " ")
return line;
// Since a more-indented line adds a \n, breaks can't be followed by a space.
const breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
let match;
// start is an inclusive index. end, curr, and next are exclusive.
let start = 0, end, curr = 0, next = 0;
let result = "";
// Invariants: 0 <= start <= length-1.
// 0 <= curr <= next <= max(0, length-2). curr - start <= width.
// Inside the loop:
// A match implies length >= 2, so curr and next are <= length-2.
while ((match = breakRe.exec(line))) {
next = match.index;
// maintain invariant: curr - start <= width
if (next - start > width) {
end = curr > start ? curr : next; // derive end <= length-2
result += "\n" + line.slice(start, end);
// skip the space that was output as \n
start = end + 1; // derive start <= length-1
}
curr = next;
}
// By the invariants, start <= length-1, so there is something left over.
// It is either the whole string or a part starting from non-whitespace.
result += "\n";
// Insert a break if the remainder is too long and there is a break available.
if (line.length - start > width && curr > start) {
result += line.slice(start, curr) + "\n" + line.slice(curr + 1);
}
else {
result += line.slice(start);
}
return result.slice(1); // drop extra \n joiner
}
// Escapes a double-quoted string.
function escapeString(string) {
let result = "";
let char = 0;
let escapeSeq;
for (let i = 0; i < string.length; char >= 0x10000 ? (i += 2) : i++) {
char = codePointAt(string, i);
escapeSeq = ESCAPE_SEQUENCES[char];
if (!escapeSeq && isPrintable(char)) {
result += string[i];
if (char >= 0x10000)
result += string[i + 1];
}
else {
result += escapeSeq || encodeHex(char);
}
}
return result;
}
function writeFlowSequence(state, level, object) {
let _result = "", _tag = state.tag, index, length, value;
for (index = 0, length = object.length; index < length; index += 1) {
value = object[index];
if (state.replacer) {
value = state.replacer.call(object, String(index), value);
}
// Write only valid elements, put null instead of invalid elements.
if (writeNode(state, level, value, false, false) ||
(typeof value === "undefined" && writeNode(state, level, null, false, false))) {
if (_result !== "")
_result += "," + (!state.condenseFlow ? " " : "");
_result += state.dump;
}
}
state.tag = _tag;
state.dump = "[" + _result + "]";
}
function writeBlockSequence(state, level, object, compact) {
let _result = "", _tag = state.tag, index, length, value;
for (index = 0, length = object.length; index < length; index += 1) {
value = object[index];
if (state.replacer) {
value = state.replacer.call(object, String(index), value);
}
// Write only valid elements, put null instead of invalid elements.
if (writeNode(state, level + 1, value, true, true, false, true) ||
(typeof value === "undefined" && writeNode(state, level + 1, null, true, true, false, true))) {
if (!compact || _result !== "") {
_result += generateNextLine(state, level);
}
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
_result += "-";
}
else {
_result += "- ";
}
_result += state.dump;
}
}
state.tag = _tag;
state.dump = _result || "[]"; // Empty sequence if no valid values.
}
function writeFlowMapping(state, level, object) {
let _result = "", _tag = state.tag, objectKeyList = Object.keys(object), index, length, objectKey, objectValue, pairBuffer;
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
pairBuffer = "";
if (_result !== "")
pairBuffer += ", ";
if (state.condenseFlow)
pairBuffer += '"';
objectKey = objectKeyList[index];
objectValue = object[objectKey];
if (state.replacer) {
objectValue = state.replacer.call(object, objectKey, objectValue);
}
if (!writeNode(state, level, objectKey, false, false)) {
continue; // Skip this pair because of invalid key;
}
if (state.dump.length > 1024)
pairBuffer += "? ";
pairBuffer += state.dump + (state.condenseFlow ? '"' : "") + ":" + (state.condenseFlow ? "" : " ");
if (!writeNode(state, level, objectValue, false, false)) {
continue; // Skip this pair because of invalid value.
}
pairBuffer += state.dump;
// Both key and value are valid.
_result += pairBuffer;
}
state.tag = _tag;
state.dump = "{" + _result + "}";
}
function writeBlockMapping(state, level, object, compact) {
let _result = "", _tag = state.tag, objectKeyList = Object.keys(object), index, length, objectKey, objectValue, explicitPair, pairBuffer;
// Allow sorting keys so that the output file is deterministic
if (state.sortKeys === true) {
// Default sorting
objectKeyList.sort();
}
else if (typeof state.sortKeys === "function") {
// Custom sort function
objectKeyList.sort(state.sortKeys);
}
else if (state.sortKeys) {
// Something is wrong
throw new YAMLException("sortKeys must be a boolean or a function");
}
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
pairBuffer = "";
if (!compact || _result !== "") {
pairBuffer += generateNextLine(state, level);
}
objectKey = objectKeyList[index];
objectValue = object[objectKey];
if (state.replacer) {
objectValue = state.replacer.call(object, objectKey, objectValue);
}
if (!writeNode(state, level + 1, objectKey, true, true, true)) {
continue; // Skip this pair because of invalid key.
}
explicitPair = (state.tag !== null && state.tag !== "?") || (state.dump && state.dump.length > 1024);
if (explicitPair) {
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
pairBuffer += "?";
}
else {
pairBuffer += "? ";
}
}
pairBuffer += state.dump;
if (explicitPair) {
pairBuffer += generateNextLine(state, level);
}
if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
continue; // Skip this pair because of invalid value.
}
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
pairBuffer += ":";
}
else {
pairBuffer += ": ";
}
pairBuffer += state.dump;
// Both key and value are valid.
_result += pairBuffer;
}
state.tag = _tag;
state.dump = _result || "{}"; // Empty mapping if no valid pairs.
}
function detectType(state, object, explicit) {
let _result, typeList, index, length, type, style;
typeList = explicit ? state.explicitTypes : state.implicitTypes;
for (index = 0, length = typeList.length; index < length; index += 1) {
type = typeList[index];
if ((type.instanceOf || type.predicate) &&
(!type.instanceOf || (typeof object === "object" && object instanceof type.instanceOf)) &&
(!type.predicate || type.predicate(object))) {
if (explicit) {
if (type.multi && type.representName) {
state.tag = type.representName(object);
}
else {
state.tag = type.tag;
}
}
else {
state.tag = "?";
}
if (type.represent) {
style = state.styleMap[type.tag] || type.defaultStyle;
if (_toString.call(type.represent) === "[object Function]") {
_result = type.represent(object, style);
}
else if (_hasOwnProperty.call(type.represent, style)) {
_result = type.represent[style](object, style);
}
else {
throw new YAMLException("!<" + type.tag + '> tag resolver accepts not "' + style + '" style');
}
state.dump = _result;
}
return true;
}
}
return false;
}
// Serializes `object` and writes it to global `result`.
// Returns true on success, or false on invalid object.
//
function writeNode(state, level, object, block, compact, iskey, isblockseq) {
state.tag = null;
state.dump = object;
if (!detectType(state, object, false)) {
detectType(state, object, true);
}
const type = _toString.call(state.dump);
const inblock = block;
let tagStr;
if (block) {
block = state.flowLevel < 0 || state.flowLevel > level;
}
let objectOrArray = type === "[object Object]" || type === "[object Array]", duplicateIndex, duplicate;
if (objectOrArray) {
duplicateIndex = state.duplicates.indexOf(object);
duplicate = duplicateIndex !== -1;
}
if ((state.tag !== null && state.tag !== "?") || duplicate || (state.indent !== 2 && level > 0)) {
compact = false;
}
if (duplicate && state.usedDuplicates[duplicateIndex]) {
state.dump = "*ref_" + duplicateIndex;
}
else {
if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
state.usedDuplicates[duplicateIndex] = true;
}
if (type === "[object Object]") {
if (block && Object.keys(state.dump).length !== 0) {
writeBlockMapping(state, level, state.dump, compact);
if (duplicate) {
state.dump = "&ref_" + duplicateIndex + state.dump;
}
}
else {
writeFlowMapping(state, level, state.dump);
if (duplicate) {
state.dump = "&ref_" + duplicateIndex + " " + state.dump;
}
}
}
else if (type === "[object Array]") {
if (block && state.dump.length !== 0) {
if (state.noArrayIndent && !isblockseq && level > 0) {
writeBlockSequence(state, level - 1, state.dump, compact);
}
else {
writeBlockSequence(state, level, state.dump, compact);
}
if (duplicate) {
state.dump = "&ref_" + duplicateIndex + state.dump;
}
}
else {
writeFlowSequence(state, level, state.dump);
if (duplicate) {
state.dump = "&ref_" + duplicateIndex + " " + state.dump;
}
}
}
else if (type === "[object String]") {
if (state.tag !== "?") {
writeScalar(state, state.dump, level, iskey, inblock);
}
}
else if (type === "[object Undefined]") {
return false;
}
else {
if (state.skipInvalid)
return false;
throw new YAMLException("unacceptable kind of an object to dump " + type);
}
if (state.tag !== null && state.tag !== "?") {
// Need to encode all characters except those allowed by the spec:
//
// [35] ns-dec-digit ::= [#x30-#x39] /* 0-9 */
// [36] ns-hex-digit ::= ns-dec-digit
// | [#x41-#x46] /* A-F */ | [#x61-#x66] /* a-f */
// [37] ns-ascii-letter ::= [#x41-#x5A] /* A-Z */ | [#x61-#x7A] /* a-z */
// [38] ns-word-char ::= ns-dec-digit | ns-ascii-letter | “-”
// [39] ns-uri-char ::= “%” ns-hex-digit ns-hex-digit | ns-word-char | “#”
// | “;” | “/” | “?” | “:” | “@” | “&” | “=” | “+” | “$” | “,”
// | “_” | “.” | “!” | “~” | “*” | “'” | “(” | “)” | “[” | “]”
//
// Also need to encode '!' because it has special meaning (end of tag prefix).
//
tagStr = encodeURI(state.tag[0] === "!" ? state.tag.slice(1) : state.tag).replace(/!/g, "%21");
if (state.tag[0] === "!") {
tagStr = "!" + tagStr;
}
else if (tagStr.slice(0, 18) === "tag:yaml.org,2002:") {
tagStr = "!!" + tagStr.slice(18);
}
else {
tagStr = "!<" + tagStr + ">";
}
state.dump = tagStr + " " + state.dump;
}
}
return true;
}
function getDuplicateReferences(object, state) {
let objects = new Set(), duplicatesIndexes = new Set(), index, length;
inspectNode(object, objects, duplicatesIndexes);
state.duplicates = [...duplicatesIndexes];
state.usedDuplicates = new Array(length);
}
function inspectNode(object, objects, duplicatesIndexes) {
let objectKeyList, index, length;
if (object !== null && typeof object === "object") {
if (objects.has(object)) {
if (!duplicatesIndexes.has(object)) {
duplicatesIndexes.add(object);
}
}
else {
objects.add(object);
if (Array.isArray(object)) {
for (index = 0, length = object.length; index < length; index += 1) {
inspectNode(object[index], objects, duplicatesIndexes);
}
}
else {
objectKeyList = Object.keys(object);
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
}
}
}
}
}
function dump(input, options) {
options = options || {};
const state = new State(options);
if (!state.noRefs)
getDuplicateReferences(input, state);
let value = input;
if (state.replacer) {
value = state.replacer.call({ "": value }, "", value);
}
if (writeNode(state, 0, value, true, true))
return state.dump + "\n";
return "";
}
exports.dump = dump;
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