angular-cn/packages/language-service/src/html_info.ts

463 lines
20 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
// Information about the HTML DOM elements
// This section defines the HTML elements and attribute surface of HTML 4
// which is derived from https://www.w3.org/TR/html4/strict.dtd
type attrType = string | string[];
type hash<T> = {
[name: string]: T
};
const values: attrType[] = [
'ID',
'CDATA',
'NAME',
['ltr', 'rtl'],
['rect', 'circle', 'poly', 'default'],
'NUMBER',
['nohref'],
['ismap'],
['declare'],
['DATA', 'REF', 'OBJECT'],
['GET', 'POST'],
'IDREF',
['TEXT', 'PASSWORD', 'CHECKBOX', 'RADIO', 'SUBMIT', 'RESET', 'FILE', 'HIDDEN', 'IMAGE', 'BUTTON'],
['checked'],
['disabled'],
['readonly'],
['multiple'],
['selected'],
['button', 'submit', 'reset'],
['void', 'above', 'below', 'hsides', 'lhs', 'rhs', 'vsides', 'box', 'border'],
['none', 'groups', 'rows', 'cols', 'all'],
['left', 'center', 'right', 'justify', 'char'],
['top', 'middle', 'bottom', 'baseline'],
'IDREFS',
['row', 'col', 'rowgroup', 'colgroup'],
['defer']
];
const groups: hash<number>[] = [
{id: 0},
{
onclick: 1,
ondblclick: 1,
onmousedown: 1,
onmouseup: 1,
onmouseover: 1,
onmousemove: 1,
onmouseout: 1,
onkeypress: 1,
onkeydown: 1,
onkeyup: 1
},
{lang: 2, dir: 3},
{onload: 1, onunload: 1},
{name: 1},
{href: 1},
{type: 1},
{alt: 1},
{tabindex: 5},
{media: 1},
{nohref: 6},
{usemap: 1},
{src: 1},
{onfocus: 1, onblur: 1},
{charset: 1},
{declare: 8, classid: 1, codebase: 1, data: 1, codetype: 1, archive: 1, standby: 1},
{title: 1},
{value: 1},
{cite: 1},
{datetime: 1},
{accept: 1},
{shape: 4, coords: 1},
{ for: 11
},
{action: 1, method: 10, enctype: 1, onsubmit: 1, onreset: 1, 'accept-charset': 1},
{valuetype: 9},
{longdesc: 1},
{width: 1},
{disabled: 14},
{readonly: 15, onselect: 1},
{accesskey: 1},
{size: 5, multiple: 16},
{onchange: 1},
{label: 1},
{selected: 17},
{type: 12, checked: 13, size: 1, maxlength: 5},
{rows: 5, cols: 5},
{type: 18},
{height: 1},
{summary: 1, border: 1, frame: 19, rules: 20, cellspacing: 1, cellpadding: 1, datapagesize: 1},
{align: 21, char: 1, charoff: 1, valign: 22},
{span: 5},
{abbr: 1, axis: 1, headers: 23, scope: 24, rowspan: 5, colspan: 5},
{profile: 1},
{'http-equiv': 2, name: 2, content: 1, scheme: 1},
{class: 1, style: 1},
{hreflang: 2, rel: 1, rev: 1},
{ismap: 7},
{ defer: 25, event: 1, for : 1 }
];
const elements: {[name: string]: number[]} = {
TT: [0, 1, 2, 16, 44],
I: [0, 1, 2, 16, 44],
B: [0, 1, 2, 16, 44],
BIG: [0, 1, 2, 16, 44],
SMALL: [0, 1, 2, 16, 44],
EM: [0, 1, 2, 16, 44],
STRONG: [0, 1, 2, 16, 44],
DFN: [0, 1, 2, 16, 44],
CODE: [0, 1, 2, 16, 44],
SAMP: [0, 1, 2, 16, 44],
KBD: [0, 1, 2, 16, 44],
VAR: [0, 1, 2, 16, 44],
CITE: [0, 1, 2, 16, 44],
ABBR: [0, 1, 2, 16, 44],
ACRONYM: [0, 1, 2, 16, 44],
SUB: [0, 1, 2, 16, 44],
SUP: [0, 1, 2, 16, 44],
SPAN: [0, 1, 2, 16, 44],
BDO: [0, 2, 16, 44],
BR: [0, 16, 44],
BODY: [0, 1, 2, 3, 16, 44],
ADDRESS: [0, 1, 2, 16, 44],
DIV: [0, 1, 2, 16, 44],
A: [0, 1, 2, 4, 5, 6, 8, 13, 14, 16, 21, 29, 44, 45],
MAP: [0, 1, 2, 4, 16, 44],
AREA: [0, 1, 2, 5, 7, 8, 10, 13, 16, 21, 29, 44],
LINK: [0, 1, 2, 5, 6, 9, 14, 16, 44, 45],
IMG: [0, 1, 2, 4, 7, 11, 12, 16, 25, 26, 37, 44, 46],
OBJECT: [0, 1, 2, 4, 6, 8, 11, 15, 16, 26, 37, 44],
PARAM: [0, 4, 6, 17, 24],
HR: [0, 1, 2, 16, 44],
P: [0, 1, 2, 16, 44],
H1: [0, 1, 2, 16, 44],
H2: [0, 1, 2, 16, 44],
H3: [0, 1, 2, 16, 44],
H4: [0, 1, 2, 16, 44],
H5: [0, 1, 2, 16, 44],
H6: [0, 1, 2, 16, 44],
PRE: [0, 1, 2, 16, 44],
Q: [0, 1, 2, 16, 18, 44],
BLOCKQUOTE: [0, 1, 2, 16, 18, 44],
INS: [0, 1, 2, 16, 18, 19, 44],
DEL: [0, 1, 2, 16, 18, 19, 44],
DL: [0, 1, 2, 16, 44],
DT: [0, 1, 2, 16, 44],
DD: [0, 1, 2, 16, 44],
OL: [0, 1, 2, 16, 44],
UL: [0, 1, 2, 16, 44],
LI: [0, 1, 2, 16, 44],
FORM: [0, 1, 2, 4, 16, 20, 23, 44],
LABEL: [0, 1, 2, 13, 16, 22, 29, 44],
INPUT: [0, 1, 2, 4, 7, 8, 11, 12, 13, 16, 17, 20, 27, 28, 29, 31, 34, 44, 46],
SELECT: [0, 1, 2, 4, 8, 13, 16, 27, 30, 31, 44],
OPTGROUP: [0, 1, 2, 16, 27, 32, 44],
OPTION: [0, 1, 2, 16, 17, 27, 32, 33, 44],
TEXTAREA: [0, 1, 2, 4, 8, 13, 16, 27, 28, 29, 31, 35, 44],
FIELDSET: [0, 1, 2, 16, 44],
LEGEND: [0, 1, 2, 16, 29, 44],
BUTTON: [0, 1, 2, 4, 8, 13, 16, 17, 27, 29, 36, 44],
TABLE: [0, 1, 2, 16, 26, 38, 44],
CAPTION: [0, 1, 2, 16, 44],
COLGROUP: [0, 1, 2, 16, 26, 39, 40, 44],
COL: [0, 1, 2, 16, 26, 39, 40, 44],
THEAD: [0, 1, 2, 16, 39, 44],
TBODY: [0, 1, 2, 16, 39, 44],
TFOOT: [0, 1, 2, 16, 39, 44],
TR: [0, 1, 2, 16, 39, 44],
TH: [0, 1, 2, 16, 39, 41, 44],
TD: [0, 1, 2, 16, 39, 41, 44],
HEAD: [2, 42],
TITLE: [2],
BASE: [5],
META: [2, 43],
STYLE: [2, 6, 9, 16],
SCRIPT: [6, 12, 14, 47],
NOSCRIPT: [0, 1, 2, 16, 44],
HTML: [2]
};
const defaultAttributes = [0, 1, 2, 4];
export function elementNames(): string[] {
return Object.keys(elements).sort().map(v => v.toLowerCase());
}
function compose(indexes: number[] | undefined): hash<attrType> {
const result: hash<attrType> = {};
if (indexes) {
for (let index of indexes) {
const group = groups[index];
for (let name in group)
if (group.hasOwnProperty(name)) result[name] = values[group[name]];
}
}
return result;
}
export function attributeNames(element: string): string[] {
return Object.keys(compose(elements[element.toUpperCase()] || defaultAttributes)).sort();
}
export function attributeType(element: string, attribute: string): string|string[]|undefined {
return compose(elements[element.toUpperCase()] || defaultAttributes)[attribute.toLowerCase()];
}
// This section is describes the DOM property surface of a DOM element and is dervided from
// from the SCHEMA strings from the security context information. SCHEMA is copied here because
// it would be an unnecessary risk to allow this array to be imported from the security context
// schema registry.
const SCHEMA:
string[] =
[
'[Element]|textContent,%classList,className,id,innerHTML,*beforecopy,*beforecut,*beforepaste,*copy,*cut,*paste,*search,*selectstart,*webkitfullscreenchange,*webkitfullscreenerror,*wheel,outerHTML,#scrollLeft,#scrollTop',
'[HTMLElement]^[Element]|accessKey,contentEditable,dir,!draggable,!hidden,innerText,lang,*abort,*beforecopy,*beforecut,*beforepaste,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*message,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*mozfullscreenchange,*mozfullscreenerror,*mozpointerlockchange,*mozpointerlockerror,*paste,*pause,*play,*playing,*progress,*ratechange,*reset,*resize,*scroll,*search,*seeked,*seeking,*select,*selectstart,*show,*stalled,*submit,*suspend,*timeupdate,*toggle,*volumechange,*waiting,*webglcontextcreationerror,*webglcontextlost,*webglcontextrestored,*webkitfullscreenchange,*webkitfullscreenerror,*wheel,outerText,!spellcheck,%style,#tabIndex,title,!translate',
'abbr,address,article,aside,b,bdi,bdo,cite,code,dd,dfn,dt,em,figcaption,figure,footer,header,i,kbd,main,mark,nav,noscript,rb,rp,rt,rtc,ruby,s,samp,section,small,strong,sub,sup,u,var,wbr^[HTMLElement]|accessKey,contentEditable,dir,!draggable,!hidden,innerText,lang,*abort,*beforecopy,*beforecut,*beforepaste,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*message,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*mozfullscreenchange,*mozfullscreenerror,*mozpointerlockchange,*mozpointerlockerror,*paste,*pause,*play,*playing,*progress,*ratechange,*reset,*resize,*scroll,*search,*seeked,*seeking,*select,*selectstart,*show,*stalled,*submit,*suspend,*timeupdate,*toggle,*volumechange,*waiting,*webglcontextcreationerror,*webglcontextlost,*webglcontextrestored,*webkitfullscreenchange,*webkitfullscreenerror,*wheel,outerText,!spellcheck,%style,#tabIndex,title,!translate',
'media^[HTMLElement]|!autoplay,!controls,%crossOrigin,#currentTime,!defaultMuted,#defaultPlaybackRate,!disableRemotePlayback,!loop,!muted,*encrypted,#playbackRate,preload,src,%srcObject,#volume',
':svg:^[HTMLElement]|*abort,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*cuechange,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*pause,*play,*playing,*progress,*ratechange,*reset,*resize,*scroll,*seeked,*seeking,*select,*show,*stalled,*submit,*suspend,*timeupdate,*toggle,*volumechange,*waiting,%style,#tabIndex',
':svg:graphics^:svg:|',
':svg:animation^:svg:|*begin,*end,*repeat',
':svg:geometry^:svg:|',
':svg:componentTransferFunction^:svg:|',
':svg:gradient^:svg:|',
':svg:textContent^:svg:graphics|',
':svg:textPositioning^:svg:textContent|',
'a^[HTMLElement]|charset,coords,download,hash,host,hostname,href,hreflang,name,password,pathname,ping,port,protocol,referrerPolicy,rel,rev,search,shape,target,text,type,username',
'area^[HTMLElement]|alt,coords,hash,host,hostname,href,!noHref,password,pathname,ping,port,protocol,referrerPolicy,search,shape,target,username',
'audio^media|',
'br^[HTMLElement]|clear',
'base^[HTMLElement]|href,target',
'body^[HTMLElement]|aLink,background,bgColor,link,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,text,vLink',
'button^[HTMLElement]|!autofocus,!disabled,formAction,formEnctype,formMethod,!formNoValidate,formTarget,name,type,value',
'canvas^[HTMLElement]|#height,#width',
'content^[HTMLElement]|select',
'dl^[HTMLElement]|!compact',
'datalist^[HTMLElement]|',
'details^[HTMLElement]|!open',
'dialog^[HTMLElement]|!open,returnValue',
'dir^[HTMLElement]|!compact',
'div^[HTMLElement]|align',
'embed^[HTMLElement]|align,height,name,src,type,width',
'fieldset^[HTMLElement]|!disabled,name',
'font^[HTMLElement]|color,face,size',
'form^[HTMLElement]|acceptCharset,action,autocomplete,encoding,enctype,method,name,!noValidate,target',
'frame^[HTMLElement]|frameBorder,longDesc,marginHeight,marginWidth,name,!noResize,scrolling,src',
'frameset^[HTMLElement]|cols,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,rows',
'hr^[HTMLElement]|align,color,!noShade,size,width',
'head^[HTMLElement]|',
'h1,h2,h3,h4,h5,h6^[HTMLElement]|align',
'html^[HTMLElement]|version',
'iframe^[HTMLElement]|align,!allowFullscreen,frameBorder,height,longDesc,marginHeight,marginWidth,name,referrerPolicy,%sandbox,scrolling,src,srcdoc,width',
'img^[HTMLElement]|align,alt,border,%crossOrigin,#height,#hspace,!isMap,longDesc,lowsrc,name,referrerPolicy,sizes,src,srcset,useMap,#vspace,#width',
'input^[HTMLElement]|accept,align,alt,autocapitalize,autocomplete,!autofocus,!checked,!defaultChecked,defaultValue,dirName,!disabled,%files,formAction,formEnctype,formMethod,!formNoValidate,formTarget,#height,!incremental,!indeterminate,max,#maxLength,min,#minLength,!multiple,name,pattern,placeholder,!readOnly,!required,selectionDirection,#selectionEnd,#selectionStart,#size,src,step,type,useMap,value,%valueAsDate,#valueAsNumber,#width',
'keygen^[HTMLElement]|!autofocus,challenge,!disabled,keytype,name',
'li^[HTMLElement]|type,#value',
'label^[HTMLElement]|htmlFor',
'legend^[HTMLElement]|align',
'link^[HTMLElement]|as,charset,%crossOrigin,!disabled,href,hreflang,integrity,media,rel,%relList,rev,%sizes,target,type',
'map^[HTMLElement]|name',
'marquee^[HTMLElement]|behavior,bgColor,direction,height,#hspace,#loop,#scrollAmount,#scrollDelay,!trueSpeed,#vspace,width',
'menu^[HTMLElement]|!compact',
'meta^[HTMLElement]|content,httpEquiv,name,scheme',
'meter^[HTMLElement]|#high,#low,#max,#min,#optimum,#value',
'ins,del^[HTMLElement]|cite,dateTime',
'ol^[HTMLElement]|!compact,!reversed,#start,type',
'object^[HTMLElement]|align,archive,border,code,codeBase,codeType,data,!declare,height,#hspace,name,standby,type,useMap,#vspace,width',
'optgroup^[HTMLElement]|!disabled,label',
'option^[HTMLElement]|!defaultSelected,!disabled,label,!selected,text,value',
'output^[HTMLElement]|defaultValue,%htmlFor,name,value',
'p^[HTMLElement]|align',
'param^[HTMLElement]|name,type,value,valueType',
'picture^[HTMLElement]|',
'pre^[HTMLElement]|#width',
'progress^[HTMLElement]|#max,#value',
'q,blockquote,cite^[HTMLElement]|',
'script^[HTMLElement]|!async,charset,%crossOrigin,!defer,event,htmlFor,integrity,src,text,type',
'select^[HTMLElement]|!autofocus,!disabled,#length,!multiple,name,!required,#selectedIndex,#size,value',
'shadow^[HTMLElement]|',
'source^[HTMLElement]|media,sizes,src,srcset,type',
'span^[HTMLElement]|',
'style^[HTMLElement]|!disabled,media,type',
'caption^[HTMLElement]|align',
'th,td^[HTMLElement]|abbr,align,axis,bgColor,ch,chOff,#colSpan,headers,height,!noWrap,#rowSpan,scope,vAlign,width',
'col,colgroup^[HTMLElement]|align,ch,chOff,#span,vAlign,width',
'table^[HTMLElement]|align,bgColor,border,%caption,cellPadding,cellSpacing,frame,rules,summary,%tFoot,%tHead,width',
'tr^[HTMLElement]|align,bgColor,ch,chOff,vAlign',
'tfoot,thead,tbody^[HTMLElement]|align,ch,chOff,vAlign',
'template^[HTMLElement]|',
'textarea^[HTMLElement]|autocapitalize,!autofocus,#cols,defaultValue,dirName,!disabled,#maxLength,#minLength,name,placeholder,!readOnly,!required,#rows,selectionDirection,#selectionEnd,#selectionStart,value,wrap',
'title^[HTMLElement]|text',
'track^[HTMLElement]|!default,kind,label,src,srclang',
'ul^[HTMLElement]|!compact,type',
'unknown^[HTMLElement]|',
'video^media|#height,poster,#width',
':svg:a^:svg:graphics|',
':svg:animate^:svg:animation|',
':svg:animateMotion^:svg:animation|',
':svg:animateTransform^:svg:animation|',
':svg:circle^:svg:geometry|',
':svg:clipPath^:svg:graphics|',
':svg:cursor^:svg:|',
':svg:defs^:svg:graphics|',
':svg:desc^:svg:|',
':svg:discard^:svg:|',
':svg:ellipse^:svg:geometry|',
':svg:feBlend^:svg:|',
':svg:feColorMatrix^:svg:|',
':svg:feComponentTransfer^:svg:|',
':svg:feComposite^:svg:|',
':svg:feConvolveMatrix^:svg:|',
':svg:feDiffuseLighting^:svg:|',
':svg:feDisplacementMap^:svg:|',
':svg:feDistantLight^:svg:|',
':svg:feDropShadow^:svg:|',
':svg:feFlood^:svg:|',
':svg:feFuncA^:svg:componentTransferFunction|',
':svg:feFuncB^:svg:componentTransferFunction|',
':svg:feFuncG^:svg:componentTransferFunction|',
':svg:feFuncR^:svg:componentTransferFunction|',
':svg:feGaussianBlur^:svg:|',
':svg:feImage^:svg:|',
':svg:feMerge^:svg:|',
':svg:feMergeNode^:svg:|',
':svg:feMorphology^:svg:|',
':svg:feOffset^:svg:|',
':svg:fePointLight^:svg:|',
':svg:feSpecularLighting^:svg:|',
':svg:feSpotLight^:svg:|',
':svg:feTile^:svg:|',
':svg:feTurbulence^:svg:|',
':svg:filter^:svg:|',
':svg:foreignObject^:svg:graphics|',
':svg:g^:svg:graphics|',
':svg:image^:svg:graphics|',
':svg:line^:svg:geometry|',
':svg:linearGradient^:svg:gradient|',
':svg:mpath^:svg:|',
':svg:marker^:svg:|',
':svg:mask^:svg:|',
':svg:metadata^:svg:|',
':svg:path^:svg:geometry|',
':svg:pattern^:svg:|',
':svg:polygon^:svg:geometry|',
':svg:polyline^:svg:geometry|',
':svg:radialGradient^:svg:gradient|',
':svg:rect^:svg:geometry|',
':svg:svg^:svg:graphics|#currentScale,#zoomAndPan',
':svg:script^:svg:|type',
':svg:set^:svg:animation|',
':svg:stop^:svg:|',
':svg:style^:svg:|!disabled,media,title,type',
':svg:switch^:svg:graphics|',
':svg:symbol^:svg:|',
':svg:tspan^:svg:textPositioning|',
':svg:text^:svg:textPositioning|',
':svg:textPath^:svg:textContent|',
':svg:title^:svg:|',
':svg:use^:svg:graphics|',
':svg:view^:svg:|#zoomAndPan',
'data^[HTMLElement]|value',
'menuitem^[HTMLElement]|type,label,icon,!disabled,!checked,radiogroup,!default',
'summary^[HTMLElement]|',
'time^[HTMLElement]|dateTime',
];
const attrToPropMap: {[name: string]: string} = <any>{
'class': 'className',
'formaction': 'formAction',
'innerHtml': 'innerHTML',
'readonly': 'readOnly',
'tabindex': 'tabIndex'
};
const EVENT = 'event';
const BOOLEAN = 'boolean';
const NUMBER = 'number';
const STRING = 'string';
const OBJECT = 'object';
export class SchemaInformation {
schema = <{[element: string]: {[property: string]: string}}>{};
constructor() {
SCHEMA.forEach(encodedType => {
const parts = encodedType.split('|');
const properties = parts[1].split(',');
const typeParts = (parts[0] + '^').split('^');
const typeName = typeParts[0];
const type = <{[property: string]: string}>{};
typeName.split(',').forEach(tag => this.schema[tag.toLowerCase()] = type);
const superName = typeParts[1];
const superType = superName && this.schema[superName.toLowerCase()];
if (superType) {
for (const key in superType) {
type[key] = superType[key];
}
}
properties.forEach((property: string) => {
if (property == '') {
} else if (property.startsWith('*')) {
type[property.substring(1)] = EVENT;
} else if (property.startsWith('!')) {
type[property.substring(1)] = BOOLEAN;
} else if (property.startsWith('#')) {
type[property.substring(1)] = NUMBER;
} else if (property.startsWith('%')) {
type[property.substring(1)] = OBJECT;
} else {
type[property] = STRING;
}
});
});
}
allKnownElements(): string[] { return Object.keys(this.schema); }
eventsOf(elementName: string): string[] {
const elementType = this.schema[elementName.toLowerCase()] || {};
return Object.keys(elementType).filter(property => elementType[property] === EVENT);
}
propertiesOf(elementName: string): string[] {
const elementType = this.schema[elementName.toLowerCase()] || {};
return Object.keys(elementType).filter(property => elementType[property] !== EVENT);
}
typeOf(elementName: string, property: string): string {
return (this.schema[elementName.toLowerCase()] || {})[property];
}
private static _instance: SchemaInformation;
static get instance(): SchemaInformation {
let result = SchemaInformation._instance;
if (!result) {
result = SchemaInformation._instance = new SchemaInformation();
}
return result;
}
}
export function eventNames(elementName: string): string[] {
return SchemaInformation.instance.eventsOf(elementName);
}
export function propertyNames(elementName: string): string[] {
return SchemaInformation.instance.propertiesOf(elementName);
}
export function propertyType(elementName: string, propertyName: string): string {
return SchemaInformation.instance.typeOf(elementName, propertyName);
}