webidl2 - npm Package Compare versions

Comparing version 23.7.0 to 23.8.0

dist/webidl2.js

@@ -1,2 +0,2 @@
-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.WebIDL2=t():e.WebIDL2=t()}(this,function(){return function(e){var t={};function n(r){if(t[r])return t[r].exports;var s=t[r]={i:r,l:!1,exports:{}};return e[r].call(s.exports,s,s.exports,n),s.l=!0,s.exports}return n.m=e,n.c=t,n.d=function(e,t,r){n.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:r})},n.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},n.t=function(e,t){if(1&t&&(e=n(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var r=Object.create(null);if(n.r(r),Object.defineProperty(r,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var s in e)n.d(r,s,function(t){return e[t]}.bind(null,s));return r},n.n=function(e){var t=e&&e.__esModule?function(){return 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T({type:e,value:t}){switch(e){case"true":case"false":return{type:"boolean",value:"true"===e};case"Infinity":case"-Infinity":return{type:"Infinity",negative:e.startsWith("-")};case"[":return{type:"sequence",value:[]};case"{":return{type:"dictionary"};case"decimal":case"integer":return{type:"number",value:t};case"string":return{type:"string",value:t.slice(1,-1)};default:return{type:e}}}function A(e){const{source:t}=e,n=function(){const n=e.consume("unsigned"),r=e.consume("short","long");if(r){const s=e.consume("long");return new l({source:t,tokens:{prefix:n,base:r,postfix:s}})}n&&e.error("Failed to parse integer type")}()||function(){const n=e.consume("unrestricted"),r=e.consume("float","double");if(r)return new l({source:t,tokens:{prefix:n,base:r}});n&&e.error("Failed to parse float type")}();if(n)return n;const r=e.consume("boolean","byte","octet");return r?new l({source:t,tokens:{base:r}}):void 0}function N(e){return x(e,{parser:h.parse,listName:"arguments list"})}function 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S{constructor(e){this.source=function(e){const t=[];let n=0,r="",o=1,i=0;for(;n<e.length;){const c=e.charAt(n);let u=-1;if(/[\t\n\r ]/.test(c)?u=a("whitespace",{noFlushTrivia:!0}):"/"===c&&(u=a("comment",{noFlushTrivia:!0})),-1!==u){const e=t.pop().value;o+=(e.match(/\n/g)||[]).length,r+=e,i-=1}else if(/[-0-9.A-Z_a-z]/.test(c)){if(-1===(u=a("decimal"))&&(u=a("integer")),-1===u){u=a("identifier");const e=t.length-1,n=t[e];if(-1!==u){if(U.includes(n.value)){const r=`${v(n.value)} is a reserved identifier and must not be used.`;throw new W(s(t,e,null,r))}q.includes(n.value)&&(n.type=n.value)}}}else'"'===c&&(u=a("string"));for(const s of D)if(e.startsWith(s,n)){t.push({type:s,value:s,trivia:r,line:o,index:i}),r="",u=n+=s.length;break}if(-1===u&&(u=a("other")),-1===u)throw new Error("Token stream not progressing");n=u,i+=1}return t.push({type:"eof",value:"",trivia:r}),t;function a(s,{noFlushTrivia:a}={}){const c=O[s];c.lastIndex=n;const u=c.exec(e);return 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t=x(e,{parser:k.parser(e,"identifier"),listName:"identifier list"});t.length||e.error("Expected identifiers but none found");return t}(e):N(e),t.close=e.consume(")")||e.error("Unexpected token in extended attribute argument list")):n.hasRhs&&!t.secondaryName&&e.error("No right hand side to extended attribute assignment"),n}get rhsType(){return this.tokens.assign?this.tokens.secondaryName?this.tokens.secondaryName.type:"identifier-list":null}}class f extends i{static parse(e){const t=e.consume("identifier");if(t)return new f({source:e.source,tokens:{name:t},params:m.parse(e)})}constructor({source:e,tokens:t,params:n}){super({source:e,tokens:t}),Object.defineProperty(this,"params",{value:n})}get type(){return"extended-attribute"}get name(){return this.tokens.name.value}get rhs(){const{rhsType:e,tokens:t,list:n}=this.params;return e?{type:e,value:"identifier-list"===e?n:t.secondaryName.value}:null}get arguments(){const{rhsType:e,list:t}=this.params;return t&&"identifier-list"!==e?t:[]}*validate(e){if("NoInterfaceObject"===this.name){const e="`[NoInterfaceObject]` extended attribute is an undesirable feature that may be removed from Web IDL in the future. 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special(){return this.tokens.special?this.tokens.special.value:""}get readonly(){return!!this.tokens.readonly}get name(){return v(this.tokens.name.value)}*validate(e){yield*this.idlType.validate(e)}}function v(e){return e.startsWith("_")?e.slice(1):e}function x(e,{parser:t,allowDangler:n,listName:r="list"}){const s=t(e);if(!s)return[];s.tokens.separator=e.consume(",");const o=[s];for(;s.tokens.separator;){const s=t(e);if(!s){n||e.error(`Trailing comma in ${r}`);break}if(s.tokens.separator=e.consume(","),o.push(s),!s.tokens.separator)break}return o}function w(e){return e.consume("true","false","Infinity","-Infinity","NaN","decimal","integer")}function T({type:e,value:t}){switch(e){case"true":case"false":return{type:"boolean",value:"true"===e};case"Infinity":case"-Infinity":return{type:"Infinity",negative:e.startsWith("-")};case"[":return{type:"sequence",value:[]};case"{":return{type:"dictionary"};case"decimal":case"integer":return{type:"number",value:t};case"string":return{type:"string",value:t.slice(1,-1)};default:return{type:e}}}function A(e){const{source:t}=e,n=function(){const n=e.consume("unsigned"),r=e.consume("short","long");if(r){const s=e.consume("long");return new l({source:t,tokens:{prefix:n,base:r,postfix:s}})}n&&e.error("Failed to parse integer type")}()||function(){const n=e.consume("unrestricted"),r=e.consume("float","double");if(r)return new l({source:t,tokens:{prefix:n,base:r}});n&&e.error("Failed to parse float type")}();if(n)return n;const r=e.consume("boolean","byte","octet");return r?new l({source:t,tokens:{base:r}}):void 0}function N(e){return x(e,{parser:h.parse,listName:"arguments list"})}function I(e,t){const n=y.parse(e),r=l.parse(e,t);return r&&(r.extAttrs=n),r}function $(e,t){const n=l.parse(e,t||"return-type");if(n)return n;const r=e.consume("void");if(r){const t=new l({source:e.source,tokens:{base:r}});return t.type="return-type",t}}function M(e){const t=e.consume("stringifier");if(t)return g.parse(e,{special:t})||b.parse(e,{special:t})||e.error("Unterminated stringifier")}function j(e){return()=>{if(e.extAttrs.length){const t=new W("Exposed=Window,"),n=f.parse(t);n.tokens.separator=t.consume(",");const r=e.extAttrs[0];/^\s/.test(r.tokens.name.trivia)||(r.tokens.name.trivia=` ${r.tokens.name.trivia}`),e.extAttrs.unshift(n)}else e.extAttrs=y.parse(new W("[Exposed=Window]")),e.extAttrs.tokens.open.trivia=e.tokens.base.trivia,e.tokens.base.trivia=" "}}const O={decimal:/-?(?=[0-9]*\.|[0-9]+[eE])(([0-9]+\.[0-9]*|[0-9]*\.[0-9]+)([Ee][-+]?[0-9]+)?|[0-9]+[Ee][-+]?[0-9]+)/y,integer:/-?(0([Xx][0-9A-Fa-f]+|[0-7]*)|[1-9][0-9]*)/y,identifier:/[_-]?[A-Za-z][0-9A-Z_a-z-]*/y,string:/"[^"]*"/y,whitespace:/[\t\n\r ]+/y,comment:/((\/(\/.*|\*([^*]|\*[^\/])*\*\/)[\t\n\r ]*)+)/y,other:/[^\t\n\r 0-9A-Za-z]/y},P=["ByteString","DOMString","USVString"],E=["async","attribute","callback","const","constructor","deleter","dictionary","enum","getter","includes","inherit","interface","iterable","maplike","namespace","partial","required","setlike","setter","static","stringifier","typedef","unrestricted"],D=["-Infinity","FrozenArray","Infinity","NaN","Promise","async","boolean","byte","constructor","double","false","float","long","mixin","null","octet","optional","or","readonly","record","sequence","short","true","unsigned","void"].concat(E,P),q=["(",")",",","...",":",";","<","=",">","?","[","]","{","}"],U=["_constructor","toString","_toString"];class W{constructor(e){this.source=function(e){const t=[];let n=0,r="",o=1,i=0;for(;n<e.length;){const c=e.charAt(n);let u=-1;if(/[\t\n\r ]/.test(c)?u=a("whitespace",{noFlushTrivia:!0}):"/"===c&&(u=a("comment",{noFlushTrivia:!0})),-1!==u){const e=t.pop().value;o+=(e.match(/\n/g)||[]).length,r+=e,i-=1}else if(/[-0-9.A-Z_a-z]/.test(c)){if(-1===(u=a("decimal"))&&(u=a("integer")),-1===u){u=a("identifier");const e=t.length-1,n=t[e];if(-1!==u){if(U.includes(n.value)){const r=`${v(n.value)} is a reserved identifier and must not be used.`;throw new S(s(t,e,null,r))}D.includes(n.value)&&(n.type=n.value)}}}else'"'===c&&(u=a("string"));for(const s of q)if(e.startsWith(s,n)){t.push({type:s,value:s,trivia:r,line:o,index:i}),r="",u=n+=s.length;break}if(-1===u&&(u=a("other")),-1===u)throw new Error("Token stream not progressing");n=u,i+=1}return t.push({type:"eof",value:"",trivia:r}),t;function a(s,{noFlushTrivia:a}={}){const c=O[s];c.lastIndex=n;const u=c.exec(e);return u?(t.push({type:s,value:u[0],trivia:r,line:o,index:i}),a||(r=""),c.lastIndex):-1}}(e),this.position=0}error(e){throw new S(s(this.source,this.position,this.current,e))}probe(e){return this.source.length>this.position&&this.source[this.position].type===e}consume(...e){for(const t of e){if(!this.probe(t))continue;const e=this.source[this.position];return this.position++,e}}unconsume(e){this.position=e}}class S extends Error{constructor({message:e,bareMessage:t,context:n,line:r,sourceName:s,input:o,tokens:i}){super(e),this.name="WebIDLParseError",this.bareMessage=t,this.context=n,this.line=r,this.sourceName=s,this.input=o,this.tokens=i}}class _ extends k{static parse(e){const t=e.consume("string");if(t)return new _({source:e.source,tokens:{value:t}})}get type(){return"enum-value"}get value(){return super.value.slice(1,-1)}}class C extends i{static parse(e){const t={};if(t.base=e.consume("enum"),!t.base)return;t.name=e.consume("identifier")||e.error("No name for enum");const n=e.current=new C({source:e.source,tokens:t});return t.open=e.consume("{")||e.error("Bodyless enum"),n.values=x(e,{parser:_.parse,allowDangler:!0,listName:"enumeration"}),e.probe("string")&&e.error("No comma between enum values"),t.close=e.consume("}")||e.error("Unexpected value in enum"),n.values.length||e.error("No value in enum"),t.termination=e.consume(";")||e.error("No semicolon after enum"),n}get type(){return"enum"}get name(){return v(this.tokens.name.value)}}class R extends i{static parse(e){const t=e.consume("identifier");if(!t)return;const n={target:t};if(n.includes=e.consume("includes"),n.includes)return n.mixin=e.consume("identifier")||e.error("Incomplete includes statement"),n.termination=e.consume(";")||e.error("No terminating ; for includes statement"),new R({source:e.source,tokens:n});e.unconsume(t.index)}get type(){return"includes"}get target(){return v(this.tokens.target.value)}get includes(){return v(this.tokens.mixin.value)}}class F extends i{static parse(e){const t={},n=new F({source:e.source,tokens:t});if(t.base=e.consume("typedef"),t.base)return n.idlType=I(e,"typedef-type")||e.error("Typedef lacks a type"),t.name=e.consume("identifier")||e.error("Typedef lacks a name"),e.current=n,t.termination=e.consume(";")||e.error("Unterminated typedef, expected `;`"),n}get type(){return"typedef"}get name(){return v(this.tokens.name.value)}*validate(e){yield*this.idlType.validate(e)}}class z extends i{static parse(e,t){const n={base:t},r=new z({source:e.source,tokens:n});return n.name=e.consume("identifier")||e.error("Callback lacks a name"),e.current=r,n.assign=e.consume("=")||e.error("Callback lacks an assignment"),r.idlType=$(e)||e.error("Callback lacks a return type"),n.open=e.consume("(")||e.error("Callback lacks parentheses for arguments"),r.arguments=N(e),n.close=e.consume(")")||e.error("Unterminated callback"),n.termination=e.consume(";")||e.error("Unterminated callback, expected `;`"),r}get type(){return"callback"}get name(){return v(this.tokens.name.value)}*validate(e){yield*this.idlType.validate(e)}}class L extends i{static parse(e,t,{type:n,inheritable:r,allowedMembers:s}){const{tokens:o}=t;for(o.name=e.consume("identifier")||e.error(`Missing name in ${t.type}`),e.current=t,r&&Object.assign(o,function(e){const t=e.consume(":");return t?{colon:t,inheritance:e.consume("identifier")||e.error("Inheritance lacks a type")}:{}}(e)),o.open=e.consume("{")||e.error(`Bodyless ${n}`),t.members=[];;){if(o.close=e.consume("}"),o.close)return o.termination=e.consume(";")||e.error(`Missing semicolon after ${n}`),t;const r=y.parse(e);let i;for(const[t,...n]of s)if(i=t(e,...n))break;i||e.error("Unknown member"),i.extAttrs=r,t.members.push(i)}}get partial(){return!!this.tokens.partial}get name(){return v(this.tokens.name.value)}get inheritance(){return this.tokens.inheritance?v(this.tokens.inheritance.value):null}*validate(e){for(const t of this.members)t.validate&&(yield*t.validate(e))}}class B extends i{static parse(e){const t={};if(t.base=e.consume("const"),!t.base)return;let n=A(e);if(!n){const t=e.consume("identifier")||e.error("Const lacks a type");n=new l({source:e.source,tokens:{base:t}})}e.probe("?")&&e.error("Unexpected nullable constant type"),n.type="const-type",t.name=e.consume("identifier")||e.error("Const lacks a name"),t.assign=e.consume("=")||e.error("Const lacks value assignment"),t.value=w(e)||e.error("Const lacks a value"),t.termination=e.consume(";")||e.error("Unterminated const, expected `;`");const r=new B({source:e.source,tokens:t});return r.idlType=n,r}get type(){return"const"}get name(){return unescape(this.tokens.name.value)}get value(){return T(this.tokens.value)}}class Z extends i{static parse(e){const t=e.position,n={},r=new Z({source:e.source,tokens:n});if(n.readonly=e.consume("readonly"),n.readonly||(n.async=e.consume("async")),n.base=n.readonly?e.consume("maplike","setlike"):n.async?e.consume("iterable"):e.consume("iterable","maplike","setlike"),!n.base)return void e.unconsume(t);const{type:s}=r,o="maplike"===s||r.async,i=o||"iterable"===s;n.open=e.consume("<")||e.error(`Missing less-than sign \`<\` in ${s} declaration`);const a=I(e)||e.error(`Missing a type argument in ${s} declaration`);return r.idlType=[a],i&&(a.tokens.separator=e.consume(","),a.tokens.separator?r.idlType.push(I(e)):o&&e.error(`Missing second type argument in ${s} declaration`)),n.close=e.consume(">")||e.error(`Missing greater-than sign \`>\` in ${s} declaration`),n.termination=e.consume(";")||e.error(`Missing semicolon after ${s} declaration`),r}get type(){return this.tokens.base.value}get readonly(){return!!this.tokens.readonly}get async(){return!!this.tokens.async}}class V extends i{static parse(e){const t=e.consume("constructor");if(!t)return;const n={base:t};n.open=e.consume("(")||e.error("No argument list in constructor");const r=N(e);n.close=e.consume(")")||e.error("Unterminated constructor"),n.termination=e.consume(";")||e.error("No semicolon after constructor");const s=new V({tokens:n});return s.arguments=r,s}get type(){return"constructor"}*validate(e){this.idlType&&(yield*this.idlType.validate(e));for(const t of this.arguments)yield*t.validate(e)}}function J(e){const t=e.consume("static");if(t)return g.parse(e,{special:t})||b.parse(e,{special:t})||e.error("No body in static member")}class X extends L{static parse(e,t,{partial:n=null}={}){const r={partial:n,base:t};return L.parse(e,new X({source:e.source,tokens:r}),{type:"interface",inheritable:!n,allowedMembers:[[B.parse],[V.parse],[J],[M],[Z.parse],[g.parse],[b.parse]]})}get type(){return"interface"}*validate(e){if(yield*this.extAttrs.validate(e),!this.partial&&this.extAttrs.every(e=>"Exposed"!==e.name)&&this.extAttrs.every(e=>"NoInterfaceObject"!==e.name)){const e="Interfaces must have `[Exposed]` extended attribute. 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To fix, add, for example, [Exposed=Window]. Please also consider carefully if your namespace should also be exposed in a Worker scope. Refer to the [WebIDL spec section on Exposed](https://heycam.github.io/webidl/#Exposed) for more information.";yield o(this.source,this.tokens.name,this,e,{autofix:j(this)})}yield*super.validate(e)}}class ee extends L{static parse(e,t,{partial:n=null}={}){const r={callback:t};if(r.base=e.consume("interface"),r.base)return L.parse(e,new ee({source:e.source,tokens:r}),{type:"callback interface",inheritable:!n,allowedMembers:[[B.parse],[b.parse,{regular:!0}]]})}get type(){return"callback interface"}}function te(e,t){const n=e.source;function r(t){e.error(t)}function s(...t){return e.consume(...t)}function o(t){const n=s("interface");if(n)return H.parse(e,n,t)||X.parse(e,n,t)||r("Interface has no proper body")}function i(){return function(){const t=s("callback");if(t)return e.probe("interface")?ee.parse(e,t):z.parse(e,t)}()||o()||function(){const t=s("partial");if(t)return Q.parse(e,{partial:t})||o({partial:t})||Y.parse(e,{partial:t})||r("Partial doesn't apply to anything")}()||Q.parse(e)||C.parse(e)||F.parse(e)||R.parse(e)||Y.parse(e)}const a=function(){if(!n.length)return[];const o=[];for(;;){const t=y.parse(e),n=i();if(!n){t.length&&r("Stray extended attributes");break}n.extAttrs=t,o.push(n)}const a=s("eof");return t.concrete&&o.push(a),o}();return e.position<n.length&&r("Unrecognised tokens"),a}function ne(e,t={}){const n=new W(e);return void 0!==t.sourceName&&(n.source.name=t.sourceName),te(n,t)}function re(e){return e}const se={wrap:e=>e.join(""),trivia:re,name:re,reference:re,type:re,generic:re,nameless:re,inheritance:re,definition:re,extendedAttribute:re,extendedAttributeReference:re};function oe(e,{templates:t=se}={}){function n(e,{unescaped:n,context:r}){return n||(n=e.startsWith("_")?e.slice(1):e),t.reference(e,n,r)}function r(e,n=re,...r){if(!e)return"";const s=n(e.value,...r);return t.wrap([t.trivia(e.trivia),s])}function s(e,t){return r(e,n,{context:t})}function o(e,n){return r(e,t.name,n)}function i(e){if(e.union||e.generic)return t.wrap([r(e.tokens.base,t.generic),r(e.tokens.open),...e.subtype.map(a),r(e.tokens.close)]);const s=e.tokens.prefix||e.tokens.base,o=e.tokens.prefix?[e.tokens.prefix.value,t.trivia(e.tokens.base.trivia)]:[],i=n(t.wrap([...o,e.tokens.base.value,r(e.tokens.postfix)]),{unescaped:e.idlType,context:e});return t.wrap([t.trivia(s.trivia),i])}function a(e){return t.wrap([p(e.extAttrs),i(e),r(e.tokens.nullable),r(e.tokens.separator)])}function c(e){return e?t.wrap([r(e.tokens.assign),...e.expression.map(e=>r(e))]):""}function u(e){return t.wrap([p(e.extAttrs),r(e.tokens.optional),t.type(a(e.idlType)),r(e.tokens.variadic),o(e.tokens.name,{data:e}),c(e.default),r(e.tokens.separator)])}function l(e){const{rhsType:n}=e.params;return t.wrap([t.trivia(e.tokens.name.trivia),t.extendedAttribute(t.wrap([t.extendedAttributeReference(e.name),r(e.params.tokens.assign),s(e.params.tokens.secondaryName,e),r(e.params.tokens.open),...e.params.list?e.params.list.map("identifier-list"===n?n=>(function(e,n){return t.wrap([s(e.tokens.value,n),r(e.tokens.separator)])})(n,e):u):[],r(e.params.tokens.close)])),r(e.tokens.separator)])}function p(e){return e.length?t.wrap([r(e.tokens.open),...e.map(l),r(e.tokens.close)]):""}function d(e){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.callback),r(e.tokens.partial),r(e.tokens.base),r(e.tokens.mixin),o(e.tokens.name,{data:e}),(s=e,s.tokens.inheritance?t.wrap([r(s.tokens.colon),t.trivia(s.tokens.inheritance.trivia),t.inheritance(n(s.tokens.inheritance.value,{context:s}))]):""),r(e.tokens.open),y(e.members,e),r(e.tokens.close),r(e.tokens.termination)]),{data:e});var s}function m(e,n){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.readonly),r(e.tokens.async),r(e.tokens.base,t.generic),r(e.tokens.open),t.wrap(e.idlType.map(a)),r(e.tokens.close),r(e.tokens.termination)]),{data:e,parent:n})}t=Object.assign({},se,t);const f={interface:d,"interface mixin":d,namespace:d,operation:function(e,n){const s=e.idlType?[t.type(a(e.idlType)),o(e.tokens.name,{data:e,parent:n}),r(e.tokens.open),t.wrap(e.arguments.map(u)),r(e.tokens.close)]:[];return t.definition(t.wrap([p(e.extAttrs),e.tokens.name?r(e.tokens.special):r(e.tokens.special,t.nameless,{data:e,parent:n}),...s,r(e.tokens.termination)]),{data:e,parent:n})},attribute:function(e,n){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.special),r(e.tokens.readonly),r(e.tokens.base),t.type(a(e.idlType)),o(e.tokens.name,{data:e,parent:n}),r(e.tokens.termination)]),{data:e,parent:n})},constructor:function(e,n){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.base,t.nameless,{data:e,parent:n}),r(e.tokens.open),t.wrap(e.arguments.map(u)),r(e.tokens.close),r(e.tokens.termination)]),{data:e,parent:n})},dictionary:d,field:function(e,n){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.required),t.type(a(e.idlType)),o(e.tokens.name,{data:e,parent:n}),c(e.default),r(e.tokens.termination)]),{data:e,parent:n})},const:function(e,n){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.base),t.type(a(e.idlType)),o(e.tokens.name,{data:e,parent:n}),r(e.tokens.assign),r(e.tokens.value),r(e.tokens.termination)]),{data:e,parent:n})},typedef:function(e){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.base),t.type(a(e.idlType)),o(e.tokens.name,{data:e}),r(e.tokens.termination)]),{data:e})},includes:function(e){return t.definition(t.wrap([p(e.extAttrs),s(e.tokens.target,e),r(e.tokens.includes),s(e.tokens.mixin,e),r(e.tokens.termination)]),{data:e})},callback:function(e){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.base),o(e.tokens.name,{data:e}),r(e.tokens.assign),t.type(a(e.idlType)),r(e.tokens.open),...e.arguments.map(u),r(e.tokens.close),r(e.tokens.termination)]),{data:e})},enum:function(e){return t.definition(t.wrap([p(e.extAttrs),r(e.tokens.base),o(e.tokens.name,{data:e}),r(e.tokens.open),y(e.values,e),r(e.tokens.close),r(e.tokens.termination)]),{data:e})},"enum-value":function(e,n){return t.wrap([t.trivia(e.tokens.value.trivia),t.definition(t.wrap(['"',t.name(e.value,{data:e,parent:n}),'"']),{data:e,parent:n}),r(e.tokens.separator)])},iterable:m,legacyiterable:m,maplike:m,setlike:m,"callback interface":d,eof:function(e){return t.trivia(e.trivia)}};function y(e,n){if(!e)return;const r=e.map(e=>(function(e,t){if(!f[e.type])throw new Error(`Type "${e.type}" is unsupported`);return f[e.type](e,t)})(e,n));return t.wrap(r)}return y(e)}function ie(e,t){const n=new Map,r=e.filter(e=>"includes"===e.type);for(const e of r){const r=t.get(e.includes);if(!r)continue;const s=n.get(e.target);s?s.push(r):n.set(e.target,[r])}return n}function*ae(e){const t=function(e){const t=new Map,n=new Set,r=new Map;for(const s of e)if(s.partial){const e=r.get(s.name);e?e.push(s):r.set(s.name,[s])}else s.name&&(t.has(s.name)?n.add(s):t.set(s.name,s));return{all:e,unique:t,partials:r,duplicates:n,mixinMap:ie(e,t),cache:{typedefIncludesDictionary:new WeakMap}}}(e);for(const e of t.all)e.validate&&(yield*e.validate(t));yield*function*({unique:e,duplicates:t}){for(const n of t){const{name:t}=n,r=`The name "${t}" of type "${e.get(t).type}" was already seen`;yield o(n.source,n.tokens.name,n,r)}}(t)}function ce(e){return[...ae((t=e,t.flat?t.flat():[].concat(...t)))];var t}n.d(t,"parse",function(){return ne}),n.d(t,"write",function(){return oe}),n.d(t,"validate",function(){return ce})}])});
 //# sourceMappingURL=webidl2.js.map

lib/productions/constructor.js

@@ -26,2 +26,11 @@ import { Base } from "./base.js";
   }
+
+  *validate(defs) {
+    if (this.idlType) {
+      yield* this.idlType.validate(defs);
+    }
+    for (const argument of this.arguments) {
+      yield* argument.validate(defs);
+    }
+  }
 }

lib/productions/interface.js

@@ -10,2 +10,3 @@ import { Container } from "./container.js";
 import { Constructor } from "./constructor.js";
+import { Tokeniser } from "../tokeniser.js";
 
@@ -65,2 +66,12 @@ /**
     }
+    const constructors = this.extAttrs.filter(extAttr => extAttr.name === "Constructor");
+    for (const constructor of constructors) {
+      const message = `Constructors should now represented as constructor operations \
+instead of \`[Constructor]\`. Refer to the \
+[WebIDL spec section on constructor operations](https://heycam.github.io/webidl/#idl-constructors) \
+for more information.`;
+      yield validationError(this.source, constructor.tokens.name, this, message, {
+        autofix: autofixConstructor(this, constructor)
+      });
+    }
 
@@ -73,1 +84,18 @@ yield* super.validate(defs);
 }
+
+function autofixConstructor(interfaceDef, constructorExtAttr) {
+  return () => {
+    const constructorOp = Constructor.parse(new Tokeniser("\nconstructor();"));
+    constructorOp.extAttrs = [];
+    constructorOp.arguments = constructorExtAttr.arguments;
+    interfaceDef.members.push(constructorOp);
+    const { extAttrs } = interfaceDef;
+    const index = extAttrs.indexOf(constructorExtAttr);
+    extAttrs.splice(index, 1);
+    if (!extAttrs.length) {
+      extAttrs.tokens.open = extAttrs.tokens.close = undefined;
+    } else if (extAttrs.length === index) {
+      extAttrs[index - 1].tokens.separator = undefined;
+    }
+  };
+}

lib/tokeniser.js

@@ -29,2 +29,3 @@ import { syntaxError } from "./error.js";
   "const",
+  "constructor",
   "deleter",
@@ -31,0 +32,0 @@ "dictionary",

package.json

 {
   "name": "webidl2",
   "description": "A WebIDL Parser",
-  "version": "23.7.0",
+  "version": "23.8.0",
   "contributors": [
@@ -6,0 +6,0 @@ "Robin Berjon <[e-mail]> (https://berjon.com)",

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