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1.0.0-beta.4
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@eemeli
eemeli committed Apr 8, 2018
1 parent 443ddb7 commit f17551a
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359 changes: 359 additions & 0 deletions dist/Document.js
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"use strict";

Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;

var _Node = require("./ast/Node");

var _errors = require("./errors");

var _Tags = require("./Tags");

var _Collection = _interopRequireWildcard(require("./schema/Collection"));

var _Node2 = require("./schema/Node");

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var isCollectionItem = function isCollectionItem(node) {
return node && [_Node.Type.MAP_KEY, _Node.Type.MAP_VALUE, _Node.Type.SEQ_ITEM].includes(node.type);
};

var Document =
/*#__PURE__*/
function () {
_createClass(Document, [{
key: "parseTagDirective",
value: function parseTagDirective(directive) {
var _directive$parameters = _slicedToArray(directive.parameters, 2),
handle = _directive$parameters[0],
prefix = _directive$parameters[1];

if (handle && prefix) {
if (this.tagPrefixes[handle]) this.errors.push(new _errors.YAMLSyntaxError(directive, 'The TAG directive must only be given at most once per handle in the same document.'));
this.tagPrefixes[handle] = prefix;
} else {
this.errors.push(new _errors.YAMLSyntaxError(directive, 'Insufficient parameters given for TAG directive'));
}
}
}, {
key: "parseYamlDirective",
value: function parseYamlDirective(directive) {
var _directive$parameters2 = _slicedToArray(directive.parameters, 1),
version = _directive$parameters2[0];

if (this.version) this.errors.push(new _errors.YAMLSyntaxError(directive, 'The YAML directive must only be given at most once per document.'));
if (!version) this.errors.push(new _errors.YAMLSyntaxError(directive, 'Insufficient parameters given for YAML directive'));else if (version !== '1.2') this.errors.push(new _errors.YAMLWarning(directive, "Document will be parsed as YAML 1.2 rather than YAML ".concat(version)));
this.version = version;
}
}]);

function Document(tags) {
var _this = this;

var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
_ref$directives = _ref.directives,
directives = _ref$directives === void 0 ? [] : _ref$directives,
_ref$contents = _ref.contents,
contents = _ref$contents === void 0 ? [] : _ref$contents,
error = _ref.error;

var _ref2 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
merge = _ref2.merge;

_classCallCheck(this, Document);

this.anchors = [];
this.directives = directives;
this.errors = [];

if (error) {
if (!error.source) error.source = this;
this.errors.push(error);
}

this.options = {
merge: merge
};
this.rawContents = contents;
this.tagPrefixes = {};
this.tags = tags;
this.version = null;
var directiveComments = [];
directives.forEach(function (directive) {
var comment = directive.comment,
name = directive.name;

switch (name) {
case 'TAG':
_this.parseTagDirective(directive);

break;

case 'YAML':
_this.parseYamlDirective(directive);

break;

default:
if (name) _this.errors.push(new _errors.YAMLWarning(directive, "YAML 1.2 only supports TAG and YAML directives, and not ".concat(name)));
}

if (comment) directiveComments.push(comment);
});
this.commentBefore = directiveComments.join('\n') || null;
var comments = {
before: [],
after: []
};
var contentNodes = [];
contents.forEach(function (node) {
if (node.valueRange && !node.valueRange.isEmpty) {
contentNodes.push(_this.resolveNode(node));
} else if (node.comment) {
var cc = contentNodes.length === 0 ? comments.before : comments.after;
cc.push(node.comment);
}
});

switch (contentNodes.length) {
case 0:
this.contents = null;
comments.after = comments.before;
break;

case 1:
this.contents = contentNodes[0];

if (this.contents) {
var cb = comments.before.join('\n') || null;

if (cb) {
var cbNode = this.contents instanceof _Collection.default && this.contents.items[0] ? this.contents.items[0] : this.contents;
cbNode.commentBefore = cbNode.commentBefore ? "".concat(cb, "\n").concat(cbNode.commentBefore) : cb;
}
} else {
comments.after = comments.before.concat(comments.after);
}

break;

default:
this.errors.push(new _errors.YAMLSyntaxError(null, 'Document is not valid YAML (bad indentation?)'));
this.contents = contentNodes;
if (this.contents[0]) this.contents[0].commentBefore = comments.before.join('\n') || null;else comments.after = comments.before.concat(comments.after);
}

this.comment = comments.after.join('\n') || null;
}

_createClass(Document, [{
key: "resolveTagName",
value: function resolveTagName(node) {
var tag = node.tag,
type = node.type;
var nonSpecific = false;

if (tag) {
var handle = tag.handle,
suffix = tag.suffix,
verbatim = tag.verbatim;

if (verbatim) {
if (verbatim !== '!' && verbatim !== '!!') return verbatim;
this.errors.push(new _errors.YAMLSyntaxError(node, "Verbatim tags aren't resolved, so ".concat(verbatim, " is invalid.")));
} else if (handle === '!' && !suffix) {
nonSpecific = true;
} else {
var prefix = this.tagPrefixes[handle] || _Tags.DefaultTagPrefixes[handle];

if (prefix) {
if (suffix) return prefix + suffix;
this.errors.push(new _errors.YAMLSyntaxError(node, "The ".concat(handle, " tag has no suffix.")));
} else {
this.errors.push(new _errors.YAMLSyntaxError(node, "The ".concat(handle, " tag handle is non-default and was not declared.")));
}
}
}

switch (type) {
case _Node.Type.BLOCK_FOLDED:
case _Node.Type.BLOCK_LITERAL:
case _Node.Type.QUOTE_DOUBLE:
case _Node.Type.QUOTE_SINGLE:
return _Tags.DefaultTags.STR;

case _Node.Type.FLOW_MAP:
case _Node.Type.MAP:
return _Tags.DefaultTags.MAP;

case _Node.Type.FLOW_SEQ:
case _Node.Type.SEQ:
return _Tags.DefaultTags.SEQ;

case _Node.Type.PLAIN:
return nonSpecific ? _Tags.DefaultTags.STR : null;

default:
return null;
}
}
}, {
key: "resolveNode",
value: function resolveNode(node) {
if (!node) return null;
var anchors = this.anchors,
errors = this.errors,
tags = this.tags;
var hasAnchor = false;
var hasTag = false;
var comments = {
before: [],
after: []
};
var props = isCollectionItem(node.context.parent) ? node.context.parent.props.concat(node.props) : node.props;
props.forEach(function (_ref3, i) {
var start = _ref3.start,
end = _ref3.end;

switch (node.context.src[start]) {
case _Node.Char.COMMENT:
if (!node.commentHasRequiredWhitespace(start)) errors.push(new _errors.YAMLSyntaxError(node, 'Comments must be separated from other tokens by white space characters'));
var c = node.context.src.slice(start + 1, end);
var header = node.header,
valueRange = node.valueRange;

if (valueRange && (start > valueRange.start || header && start > header.start)) {
comments.after.push(c);
} else {
comments.before.push(c);
}

break;

case _Node.Char.ANCHOR:
if (hasAnchor) errors.push(new _errors.YAMLSyntaxError(node, 'A node can have at most one anchor'));
hasAnchor = true;
break;

case _Node.Char.TAG:
if (hasTag) errors.push(new _errors.YAMLSyntaxError(node, 'A node can have at most one tag'));
hasTag = true;
break;
}
});
if (hasAnchor) anchors[node.anchor] = node;
var res;

if (node.type === _Node.Type.ALIAS) {
if (hasAnchor || hasTag) errors.push(new _errors.YAMLSyntaxError(node, 'An alias node must not specify any properties'));
var src = anchors[node.rawValue];

if (!src) {
errors.push(new _errors.YAMLReferenceError(node, "Aliased anchor not found: ".concat(node.rawValue)));
return null;
}

res = src.resolved;
} else {
var tagName = this.resolveTagName(node);

if (tagName) {
res = tags.resolve(this, node, tagName);
} else {
if (node.type !== _Node.Type.PLAIN) {
errors.push(new _errors.YAMLSyntaxError(node, "Failed to resolve ".concat(node.type, " node here")));
return null;
}

try {
res = tags.resolveScalar(node.strValue || '');
} catch (error) {
if (!error.source) error.source = node;
errors.push(error);
return null;
}
}
}

if (res) {
var cb = comments.before.join('\n');
if (cb) res.commentBefore = res.commentBefore ? "".concat(res.commentBefore, "\n").concat(cb) : cb;
var ca = comments.after.join('\n');
if (ca) res.comment = res.comment ? "".concat(res.comment, "\n").concat(ca) : ca;
}

return node.resolved = res;
}
}, {
key: "toJSON",
value: function toJSON() {
return (0, _Collection.toJSON)(this.contents);
}
}, {
key: "toString",
value: function toString() {
var _this2 = this;

var contents = this.contents;

if (Array.isArray(contents)) {
if (contents.length <= 1) contents = contents[0] || null;else throw new Error('Document with multiple content nodes cannot be stringified');
}

var lines = this.directives.filter(function (_ref4) {
var comment = _ref4.comment;
return comment;
}).map(function (_ref5) {
var comment = _ref5.comment;
return comment.replace(/^/gm, '#');
});
var hasDirectives = false;

if (this.version) {
lines.push('%YAML 1.2');
hasDirectives = true;
}

Object.keys(this.tagPrefixes).forEach(function (handle) {
var prefix = _this2.tagPrefixes[handle];
lines.push("%TAG ".concat(handle, " ").concat(prefix));
hasDirectives = true;
});
if (hasDirectives) lines.push('---');

if (contents) {
if (contents.commentBefore) lines.push(contents.commentBefore.replace(/^/gm, '#'));
var options = {
// top-level block scalars need to be indented if followed by a comment
forceBlockIndent: !!this.comment,
indent: ''
};
var comment = contents.comment;
var body = this.tags.stringify(contents, options, function () {
comment = null;
});
lines.push((0, _Node2.addComment)(body, '', comment));
}

if (this.comment) lines.push(this.comment.replace(/^/gm, '#'));
return lines.join('\n') + '\n';
}
}]);

return Document;
}();

exports.default = Document;
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