diff --git a/README.md b/README.md
index db20846b..56e5ac3e 100644
--- a/README.md
+++ b/README.md
@@ -208,7 +208,7 @@ calling `initialize` before constructing any `SourceMapConsumer`s.
 The options object has the following properties:
 
 * `"lib/mappings.wasm"`: A `String` containing the URL of the
-  `lib/mappings.wasm` file.
+  `lib/mappings.wasm` file, or an `ArrayBuffer` with the contents of `lib/mappings.wasm`.
 
 ```js
 sourceMap.SourceMapConsumer.initialize({
diff --git a/dist/source-map.js b/dist/source-map.js
index 1a486df7..9cffddfd 100644
--- a/dist/source-map.js
+++ b/dist/source-map.js
@@ -1 +1 @@
-!function(e,n){"object"==typeof exports&&"object"==typeof module?module.exports=n(require("path"),require("fs")):"function"==typeof define&&define.amd?define(["path","fs"],n):"object"==typeof exports?exports.sourceMap=n(require("path"),require("fs")):e.sourceMap=n(e.path,e.fs)}(window,function(e,n){return function(e){var n={};function t(r){if(n[r])return n[r].exports;var o=n[r]={i:r,l:!1,exports:{}};return e[r].call(o.exports,o,o.exports,t),o.l=!0,o.exports}return t.m=e,t.c=n,t.d=function(e,n,r){t.o(e,n)||Object.defineProperty(e,n,{configurable:!1,enumerable:!0,get:r})},t.r=function(e){Object.defineProperty(e,"__esModule",{value:!0})},t.n=function(e){var n=e&&e.__esModule?function(){return e.default}:function(){return e};return t.d(n,"a",n),n},t.o=function(e,n){return Object.prototype.hasOwnProperty.call(e,n)},t.p="",t(t.s=13)}([function(e,n){n.getArg=function(e,n,t){if(n in e)return e[n];if(3===arguments.length)return t;throw new Error('"'+n+'" is a required argument.')};const t=/^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/,r=/^data:.+\,.+$/;function o(e){const n=e.match(t);return n?{scheme:n[1],auth:n[2],host:n[3],port:n[4],path:n[5]}:null}function i(e){let n="";return e.scheme&&(n+=e.scheme+":"),n+="//",e.auth&&(n+=e.auth+"@"),e.host&&(n+=e.host),e.port&&(n+=":"+e.port),e.path&&(n+=e.path),n}n.urlParse=o,n.urlGenerate=i;const s=32;const l=function(e){const n=[];return function(t){for(let e=0;e<n.length;e++)if(n[e].input===t){const t=n[0];return n[0]=n[e],n[e]=t,n[0].result}const r=e(t);return n.unshift({input:t,result:r}),n.length>s&&n.pop(),r}}(function(e){let t=e;const r=o(e);if(r){if(!r.path)return e;t=r.path}const s=n.isAbsolute(t),l=[];let a=0,u=0;for(;;){if(a=u,-1===(u=t.indexOf("/",a))){l.push(t.slice(a));break}for(l.push(t.slice(a,u));u<t.length&&"/"===t[u];)u++}let c=0;for(u=l.length-1;u>=0;u--){const e=l[u];"."===e?l.splice(u,1):".."===e?c++:c>0&&(""===e?(l.splice(u+1,c),c=0):(l.splice(u,2),c--))}return""===(t=l.join("/"))&&(t=s?"/":"."),r?(r.path=t,i(r)):t});function a(e,n){""===e&&(e="."),""===n&&(n=".");const t=o(n),s=o(e);if(s&&(e=s.path||"/"),t&&!t.scheme)return s&&(t.scheme=s.scheme),i(t);if(t||n.match(r))return n;if(s&&!s.host&&!s.path)return s.host=n,i(s);const a="/"===n.charAt(0)?n:l(e.replace(/\/+$/,"")+"/"+n);return s?(s.path=a,i(s)):a}n.normalize=l,n.join=a,n.isAbsolute=function(e){return"/"===e.charAt(0)||t.test(e)},n.relative=function(e,n){""===e&&(e="."),e=e.replace(/\/$/,"");let t=0;for(;0!==n.indexOf(e+"/");){const r=e.lastIndexOf("/");if(r<0)return n;if((e=e.slice(0,r)).match(/^([^\/]+:\/)?\/*$/))return n;++t}return Array(t+1).join("../")+n.substr(e.length+1)};const u=!("__proto__"in Object.create(null));function c(e){return e}function g(e){if(!e)return!1;const n=e.length;if(n<9)return!1;if(95!==e.charCodeAt(n-1)||95!==e.charCodeAt(n-2)||111!==e.charCodeAt(n-3)||116!==e.charCodeAt(n-4)||111!==e.charCodeAt(n-5)||114!==e.charCodeAt(n-6)||112!==e.charCodeAt(n-7)||95!==e.charCodeAt(n-8)||95!==e.charCodeAt(n-9))return!1;for(let t=n-10;t>=0;t--)if(36!==e.charCodeAt(t))return!1;return!0}function h(e,n){return e===n?0:null===e?1:null===n?-1:e>n?1:-1}n.toSetString=u?c:function(e){return g(e)?"$"+e:e},n.fromSetString=u?c:function(e){return g(e)?e.slice(1):e},n.compareByOriginalPositions=function(e,n,t){let r=h(e.source,n.source);return 0!==r?r:0!=(r=e.originalLine-n.originalLine)?r:0!=(r=e.originalColumn-n.originalColumn)||t?r:0!=(r=e.generatedColumn-n.generatedColumn)?r:0!=(r=e.generatedLine-n.generatedLine)?r:h(e.name,n.name)},n.compareByGeneratedPositionsDeflated=function(e,n,t){let r=e.generatedLine-n.generatedLine;return 0!==r?r:0!=(r=e.generatedColumn-n.generatedColumn)||t?r:0!==(r=h(e.source,n.source))?r:0!=(r=e.originalLine-n.originalLine)?r:0!=(r=e.originalColumn-n.originalColumn)?r:h(e.name,n.name)},n.compareByGeneratedPositionsInflated=function(e,n){let t=e.generatedLine-n.generatedLine;return 0!==t?t:0!=(t=e.generatedColumn-n.generatedColumn)?t:0!==(t=h(e.source,n.source))?t:0!=(t=e.originalLine-n.originalLine)?t:0!=(t=e.originalColumn-n.originalColumn)?t:h(e.name,n.name)},n.parseSourceMapInput=function(e){return JSON.parse(e.replace(/^\)]}'[^\n]*\n/,""))},n.computeSourceURL=function(e,n,t){if(n=n||"",e&&("/"!==e[e.length-1]&&"/"!==n[0]&&(e+="/"),n=e+n),t){const e=o(t);if(!e)throw new Error("sourceMapURL could not be parsed");if(e.path){const n=e.path.lastIndexOf("/");n>=0&&(e.path=e.path.substring(0,n+1))}n=a(i(e),n)}return l(n)}},function(e,n,t){(function(n){if("function"==typeof fetch){let n=null;e.exports=function(){if("string"!=typeof n)throw new Error("You must provide the URL of lib/mappings.wasm by calling SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer");return fetch(n).then(e=>e.arrayBuffer())},e.exports.initialize=(e=>n=e)}else{const r=t(8),o=t(7);e.exports=function(){return new Promise((e,t)=>{const i=o.join(n,"mappings.wasm");r.readFile(i,null,(n,r)=>{n?t(n):e(r.buffer)})})},e.exports.initialize=(e=>{console.debug("SourceMapConsumer.initialize is a no-op when running in node.js")})}}).call(this,"/")},function(e,n){class t{constructor(){this._array=[],this._set=new Map}static fromArray(e,n){const r=new t;for(let t=0,o=e.length;t<o;t++)r.add(e[t],n);return r}size(){return this._set.size}add(e,n){const t=this.has(e),r=this._array.length;t&&!n||this._array.push(e),t||this._set.set(e,r)}has(e){return this._set.has(e)}indexOf(e){const n=this._set.get(e);if(n>=0)return n;throw new Error('"'+e+'" is not in the set.')}at(e){if(e>=0&&e<this._array.length)return this._array[e];throw new Error("No element indexed by 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i=r;null!==n&&(i=o.relative(n,r)),t._sources.has(i)||t._sources.add(i);const s=e.sourceContentFor(r);null!=s&&t.setSourceContent(r,s)}),t}addMapping(e){const n=o.getArg(e,"generated"),t=o.getArg(e,"original",null);let r=o.getArg(e,"source",null),i=o.getArg(e,"name",null);this._skipValidation||this._validateMapping(n,t,r,i),null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)),null!=i&&(i=String(i),this._names.has(i)||this._names.add(i)),this._mappings.add({generatedLine:n.line,generatedColumn:n.column,originalLine:null!=t&&t.line,originalColumn:null!=t&&t.column,source:r,name:i})}setSourceContent(e,n){let t=e;null!=this._sourceRoot&&(t=o.relative(this._sourceRoot,t)),null!=n?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[o.toSetString(t)]=n):this._sourcesContents&&(delete this._sourcesContents[o.toSetString(t)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))}applySourceMap(e,n,t){let 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n={code:"",line:1,column:0},t=new r(e);let o=!1,i=null,l=null,a=null,u=null;return this.walk(function(e,r){n.code+=e,null!==r.source&&null!==r.line&&null!==r.column?(i===r.source&&l===r.line&&a===r.column&&u===r.name||t.addMapping({source:r.source,original:{line:r.line,column:r.column},generated:{line:n.line,column:n.column},name:r.name}),i=r.source,l=r.line,a=r.column,u=r.name,o=!0):o&&(t.addMapping({generated:{line:n.line,column:n.column}}),i=null,o=!1);for(let l=0,a=e.length;l<a;l++)e.charCodeAt(l)===s?(n.line++,n.column=0,l+1===a?(i=null,o=!1):o&&t.addMapping({source:r.source,original:{line:r.line,column:r.column},generated:{line:n.line,column:n.column},name:r.name})):n.column++}),this.walkSourceContents(function(e,n){t.setSourceContent(e,n)}),{code:n.code,map:t}}}n.SourceNode=a},function(e,n,t){const r=t(1);let o=null;e.exports=function(){if(o)return o;const e=[];return o=r().then(n=>WebAssembly.instantiate(n,{env:{mapping_callback(n,t,r,o,i,s,l,a,u,c){const g=new function(){this.generatedLine=0,this.generatedColumn=0,this.lastGeneratedColumn=null,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null};g.generatedLine=n+1,g.generatedColumn=t,r&&(g.lastGeneratedColumn=o-1),i&&(g.source=s,g.originalLine=l+1,g.originalColumn=a,u&&(g.name=c)),e[e.length-1](g)},start_all_generated_locations_for(){console.time("all_generated_locations_for")},end_all_generated_locations_for(){console.timeEnd("all_generated_locations_for")},start_compute_column_spans(){console.time("compute_column_spans")},end_compute_column_spans(){console.timeEnd("compute_column_spans")},start_generated_location_for(){console.time("generated_location_for")},end_generated_location_for(){console.timeEnd("generated_location_for")},start_original_location_for(){console.time("original_location_for")},end_original_location_for(){console.timeEnd("original_location_for")},start_parse_mappings(){console.time("parse_mappings")},end_parse_mappings(){console.timeEnd("parse_mappings")},start_sort_by_generated_location(){console.time("sort_by_generated_location")},end_sort_by_generated_location(){console.timeEnd("sort_by_generated_location")},start_sort_by_original_location(){console.time("sort_by_original_location")},end_sort_by_original_location(){console.timeEnd("sort_by_original_location")}}})).then(n=>({exports:n.instance.exports,withMappingCallback:(n,t)=>{e.push(n);try{t()}finally{e.pop()}}})).then(null,e=>{throw o=null,e})}},function(n,t){n.exports=e},function(e,t){e.exports=n},function(e,n){n.GREATEST_LOWER_BOUND=1,n.LEAST_UPPER_BOUND=2,n.search=function(e,t,r,o){if(0===t.length)return-1;let i=function e(t,r,o,i,s,l){const a=Math.floor((r-t)/2)+t,u=s(o,i[a],!0);return 0===u?a:u>0?r-a>1?e(a,r,o,i,s,l):l==n.LEAST_UPPER_BOUND?r<i.length?r:-1:a:a-t>1?e(t,a,o,i,s,l):l==n.LEAST_UPPER_BOUND?a:t<0?-1:t}(-1,t.length,e,t,r,o||n.GREATEST_LOWER_BOUND);if(i<0)return-1;for(;i-1>=0&&0===r(t[i],t[i-1],!0);)--i;return i}},function(e,n,t){const r=t(0),o=t(9),i=t(2).ArraySet,s=(t(3),t(1)),l=t(6),a=Symbol("smcInternal");class u{constructor(e,n){return e==a?Promise.resolve(this):function(e,n){let t=e;"string"==typeof e&&(t=r.parseSourceMapInput(e));const o=null!=t.sections?new g(t,n):new c(t,n);return Promise.resolve(o)}(e,n)}static initialize(e){s.initialize(e["lib/mappings.wasm"])}static fromSourceMap(e,n){return function(e,n){return c.fromSourceMap(e,n)}(e,n)}static async with(e,n,t){const r=await new u(e,n);try{return await t(r)}finally{r.destroy()}}_parseMappings(e,n){throw new Error("Subclasses must implement _parseMappings")}eachMapping(e,n,t){throw new Error("Subclasses must implement eachMapping")}allGeneratedPositionsFor(e){throw new Error("Subclasses must implement allGeneratedPositionsFor")}destroy(){throw new Error("Subclasses must implement destroy")}}u.prototype._version=3,u.GENERATED_ORDER=1,u.ORIGINAL_ORDER=2,u.GREATEST_LOWER_BOUND=1,u.LEAST_UPPER_BOUND=2,n.SourceMapConsumer=u;class c extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version");let a=r.getArg(o,"sources");const u=r.getArg(o,"names",[]);let c=r.getArg(o,"sourceRoot",null);const g=r.getArg(o,"sourcesContent",null),h=r.getArg(o,"mappings"),p=r.getArg(o,"file",null);if(s!=t._version)throw new Error("Unsupported version: "+s);return c&&(c=r.normalize(c)),a=a.map(String).map(r.normalize).map(function(e){return c&&r.isAbsolute(c)&&r.isAbsolute(e)?r.relative(c,e):e}),t._names=i.fromArray(u.map(String),!0),t._sources=i.fromArray(a,!0),t._absoluteSources=t._sources.toArray().map(function(e){return r.computeSourceURL(c,e,n)}),t.sourceRoot=c,t.sourcesContent=g,t._mappings=h,t._sourceMapURL=n,t.file=p,t._computedColumnSpans=!1,t._mappingsPtr=0,t._wasm=null,l().then(e=>(t._wasm=e,t))})}_findSourceIndex(e){let n=e;if(null!=this.sourceRoot&&(n=r.relative(this.sourceRoot,n)),this._sources.has(n))return this._sources.indexOf(n);for(let n=0;n<this._absoluteSources.length;++n)if(this._absoluteSources[n]==e)return n;return-1}static fromSourceMap(e,n){return new c(e.toString())}get sources(){return this._absoluteSources.slice()}_getMappingsPtr(){return 0===this._mappingsPtr&&this._parseMappings(this._mappings,this.sourceRoot),this._mappingsPtr}_parseMappings(e,n){const t=e.length,r=this._wasm.exports.allocate_mappings(t),o=new Uint8Array(this._wasm.exports.memory.buffer,r,t);for(let n=0;n<t;n++)o[n]=e.charCodeAt(n);const i=this._wasm.exports.parse_mappings(r);if(!i){const e=this._wasm.exports.get_last_error();let n=`Error parsing mappings (code ${e}): `;switch(e){case 1:n+="the mappings contained a negative line, column, source index, or name index";break;case 2:n+="the mappings contained a number larger than 2**32";break;case 3:n+="reached EOF while in the middle of parsing a VLQ";break;case 4:n+="invalid base 64 character while parsing a VLQ";break;default:n+="unknown error code"}throw new Error(n)}this._mappingsPtr=i}eachMapping(e,n,t){const o=n||null,i=t||u.GENERATED_ORDER,s=this.sourceRoot;this._wasm.withMappingCallback(n=>{null!==n.source&&(n.source=this._sources.at(n.source),n.source=r.computeSourceURL(s,n.source,this._sourceMapURL),null!==n.name&&(n.name=this._names.at(n.name))),e.call(o,n)},()=>{switch(i){case u.GENERATED_ORDER:this._wasm.exports.by_generated_location(this._getMappingsPtr());break;case u.ORIGINAL_ORDER:this._wasm.exports.by_original_location(this._getMappingsPtr());break;default:throw new Error("Unknown order of iteration.")}})}allGeneratedPositionsFor(e){let n=r.getArg(e,"source");const t=r.getArg(e,"line"),o=e.column||0;if((n=this._findSourceIndex(n))<0)return[];if(t<1)throw new Error("Line numbers must be >= 1");if(o<0)throw new Error("Column numbers must be >= 0");const i=[];return this._wasm.withMappingCallback(e=>{let n=e.lastGeneratedColumn;this._computedColumnSpans&&null===n&&(n=1/0),i.push({line:e.generatedLine,column:e.generatedColumn,lastColumn:n})},()=>{this._wasm.exports.all_generated_locations_for(this._getMappingsPtr(),n,t-1,"column"in e,o)}),i}destroy(){0!==this._mappingsPtr&&(this._wasm.exports.free_mappings(this._mappingsPtr),this._mappingsPtr=0)}computeColumnSpans(){this._computedColumnSpans||(this._wasm.exports.compute_column_spans(this._getMappingsPtr()),this._computedColumnSpans=!0)}originalPositionFor(e){const n={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")};if(n.generatedLine<1)throw new Error("Line numbers must be >= 1");if(n.generatedColumn<0)throw new Error("Column numbers must be >= 0");let t,o=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==o&&(o=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>t=e,()=>{this._wasm.exports.original_location_for(this._getMappingsPtr(),n.generatedLine-1,n.generatedColumn,o)}),t&&t.generatedLine===n.generatedLine){let e=r.getArg(t,"source",null);null!==e&&(e=this._sources.at(e),e=r.computeSourceURL(this.sourceRoot,e,this._sourceMapURL));let n=r.getArg(t,"name",null);return null!==n&&(n=this._names.at(n)),{source:e,line:r.getArg(t,"originalLine",null),column:r.getArg(t,"originalColumn",null),name:n}}return{source:null,line:null,column:null,name:null}}hasContentsOfAllSources(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))}sourceContentFor(e,n){if(!this.sourcesContent)return null;const t=this._findSourceIndex(e);if(t>=0)return this.sourcesContent[t];let o,i=e;if(null!=this.sourceRoot&&(i=r.relative(this.sourceRoot,i)),null!=this.sourceRoot&&(o=r.urlParse(this.sourceRoot))){const e=i.replace(/^file:\/\//,"");if("file"==o.scheme&&this._sources.has(e))return this.sourcesContent[this._sources.indexOf(e)];if((!o.path||"/"==o.path)&&this._sources.has("/"+i))return this.sourcesContent[this._sources.indexOf("/"+i)]}if(n)return null;throw new Error('"'+i+'" is not in the SourceMap.')}generatedPositionFor(e){let n=r.getArg(e,"source");if((n=this._findSourceIndex(n))<0)return{line:null,column:null,lastColumn:null};const t={source:n,originalLine:r.getArg(e,"line"),originalColumn:r.getArg(e,"column")};if(t.originalLine<1)throw new Error("Line numbers must be >= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");let o,i=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==i&&(i=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>o=e,()=>{this._wasm.exports.generated_location_for(this._getMappingsPtr(),t.source,t.originalLine-1,t.originalColumn,i)}),o&&o.source===t.source){let e=o.lastGeneratedColumn;return this._computedColumnSpans&&null===e&&(e=1/0),{line:r.getArg(o,"generatedLine",null),column:r.getArg(o,"generatedColumn",null),lastColumn:e}}return{line:null,column:null,lastColumn:null}}}c.prototype.consumer=u,n.BasicSourceMapConsumer=c;class g extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version"),l=r.getArg(o,"sections");if(s!=t._version)throw new Error("Unsupported version: "+s);t._sources=new i,t._names=new i,t.__generatedMappings=null,t.__originalMappings=null,t.__generatedMappingsUnsorted=null,t.__originalMappingsUnsorted=null;let a={line:-1,column:0};return Promise.all(l.map(e=>{if(e.url)throw new Error("Support for url field in sections not implemented.");const t=r.getArg(e,"offset"),o=r.getArg(t,"line"),i=r.getArg(t,"column");if(o<a.line||o===a.line&&i<a.column)throw new Error("Section offsets must be ordered and non-overlapping.");return a=t,new u(r.getArg(e,"map"),n).then(e=>({generatedOffset:{generatedLine:o+1,generatedColumn:i+1},consumer:e}))})).then(e=>(t._sections=e,t))})}get _generatedMappings(){return this.__generatedMappings||this._sortGeneratedMappings(),this.__generatedMappings}get _originalMappings(){return this.__originalMappings||this._sortOriginalMappings(),this.__originalMappings}get _generatedMappingsUnsorted(){return this.__generatedMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappingsUnsorted}get _originalMappingsUnsorted(){return this.__originalMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappingsUnsorted}_sortGeneratedMappings(){const e=this._generatedMappingsUnsorted;e.sort(r.compareByGeneratedPositionsDeflated),this.__generatedMappings=e}_sortOriginalMappings(){const e=this._originalMappingsUnsorted;e.sort(r.compareByOriginalPositions),this.__originalMappings=e}get sources(){const e=[];for(let n=0;n<this._sections.length;n++)for(let t=0;t<this._sections[n].consumer.sources.length;t++)e.push(this._sections[n].consumer.sources[t]);return e}originalPositionFor(e){const n={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")},t=o.search(n,this._sections,function(e,n){const t=e.generatedLine-n.generatedOffset.generatedLine;return t||e.generatedColumn-n.generatedOffset.generatedColumn}),i=this._sections[t];return i?i.consumer.originalPositionFor({line:n.generatedLine-(i.generatedOffset.generatedLine-1),column:n.generatedColumn-(i.generatedOffset.generatedLine===n.generatedLine?i.generatedOffset.generatedColumn-1:0),bias:e.bias}):{source:null,line:null,column:null,name:null}}hasContentsOfAllSources(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})}sourceContentFor(e,n){for(let n=0;n<this._sections.length;n++){const t=this._sections[n].consumer.sourceContentFor(e,!0);if(t)return t}if(n)return null;throw new Error('"'+e+'" is not in the SourceMap.')}generatedPositionFor(e){for(let n=0;n<this._sections.length;n++){const t=this._sections[n];if(-1===t.consumer._findSourceIndex(r.getArg(e,"source")))continue;const o=t.consumer.generatedPositionFor(e);if(o){return{line:o.line+(t.generatedOffset.generatedLine-1),column:o.column+(t.generatedOffset.generatedLine===o.line?t.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}}_parseMappings(e,n){const t=this.__generatedMappingsUnsorted=[],o=this.__originalMappingsUnsorted=[];for(let e=0;e<this._sections.length;e++){const n=this._sections[e],i=[];n.consumer.eachMapping(e=>i.push(e));for(let e=0;e<i.length;e++){const s=i[e];let l=r.computeSourceURL(n.consumer.sourceRoot,null,this._sourceMapURL);this._sources.add(l),l=this._sources.indexOf(l);let a=null;s.name&&(this._names.add(s.name),a=this._names.indexOf(s.name));const u={source:l,generatedLine:s.generatedLine+(n.generatedOffset.generatedLine-1),generatedColumn:s.generatedColumn+(n.generatedOffset.generatedLine===s.generatedLine?n.generatedOffset.generatedColumn-1:0),originalLine:s.originalLine,originalColumn:s.originalColumn,name:a};t.push(u),"number"==typeof u.originalLine&&o.push(u)}}}eachMapping(e,n,t){const o=n||null;let i;switch(t||u.GENERATED_ORDER){case u.GENERATED_ORDER:i=this._generatedMappings;break;case u.ORIGINAL_ORDER:i=this._originalMappings;break;default:throw new Error("Unknown order of iteration.")}const s=this.sourceRoot;i.map(function(e){let n=null;return null!==e.source&&(n=this._sources.at(e.source),n=r.computeSourceURL(s,n,this._sourceMapURL)),{source:n,generatedLine:e.generatedLine,generatedColumn:e.generatedColumn,originalLine:e.originalLine,originalColumn:e.originalColumn,name:null===e.name?null:this._names.at(e.name)}},this).forEach(e,o)}_findMapping(e,n,t,r,i,s){if(e[t]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[t]);if(e[r]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[r]);return o.search(e,n,i,s)}allGeneratedPositionsFor(e){const n=r.getArg(e,"line"),t={source:r.getArg(e,"source"),originalLine:n,originalColumn:r.getArg(e,"column",0)};if(t.source=this._findSourceIndex(t.source),t.source<0)return[];if(t.originalLine<1)throw new Error("Line numbers must be >= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");const i=[];let s=this._findMapping(t,this._originalMappings,"originalLine","originalColumn",r.compareByOriginalPositions,o.LEAST_UPPER_BOUND);if(s>=0){let t=this._originalMappings[s];if(void 0===e.column){const e=t.originalLine;for(;t&&t.originalLine===e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}else{const e=t.originalColumn;for(;t&&t.originalLine===n&&t.originalColumn==e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}}return i}destroy(){for(let e=0;e<this._sections.length;e++)this._sections[e].consumer.destroy()}}n.IndexedSourceMapConsumer=g},function(e,n,t){const r=t(0);n.MappingList=class{constructor(){this._array=[],this._sorted=!0,this._last={generatedLine:-1,generatedColumn:0}}unsortedForEach(e,n){this._array.forEach(e,n)}add(e){!function(e,n){const t=e.generatedLine,o=n.generatedLine,i=e.generatedColumn,s=n.generatedColumn;return o>t||o==t&&s>=i||r.compareByGeneratedPositionsInflated(e,n)<=0}(this._last,e)?(this._sorted=!1,this._array.push(e)):(this._last=e,this._array.push(e))}toArray(){return this._sorted||(this._array.sort(r.compareByGeneratedPositionsInflated),this._sorted=!0),this._array}}},function(e,n){const t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");n.encode=function(e){if(0<=e&&e<t.length)return t[e];throw new TypeError("Must be between 0 and 63: "+e)}},function(e,n,t){n.SourceMapGenerator=t(4).SourceMapGenerator,n.SourceMapConsumer=t(10).SourceMapConsumer,n.SourceNode=t(5).SourceNode}])});
\ No newline at end of file
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t=e;const r=o(e);if(r){if(!r.path)return e;t=r.path}const s=n.isAbsolute(t),l=[];let a=0,u=0;for(;;){if(a=u,-1===(u=t.indexOf("/",a))){l.push(t.slice(a));break}for(l.push(t.slice(a,u));u<t.length&&"/"===t[u];)u++}let c=0;for(u=l.length-1;u>=0;u--){const e=l[u];"."===e?l.splice(u,1):".."===e?c++:c>0&&(""===e?(l.splice(u+1,c),c=0):(l.splice(u,2),c--))}return""===(t=l.join("/"))&&(t=s?"/":"."),r?(r.path=t,i(r)):t});function a(e,n){""===e&&(e="."),""===n&&(n=".");const t=o(n),s=o(e);if(s&&(e=s.path||"/"),t&&!t.scheme)return s&&(t.scheme=s.scheme),i(t);if(t||n.match(r))return n;if(s&&!s.host&&!s.path)return s.host=n,i(s);const a="/"===n.charAt(0)?n:l(e.replace(/\/+$/,"")+"/"+n);return s?(s.path=a,i(s)):a}n.normalize=l,n.join=a,n.isAbsolute=function(e){return"/"===e.charAt(0)||t.test(e)},n.relative=function(e,n){""===e&&(e="."),e=e.replace(/\/$/,"");let t=0;for(;0!==n.indexOf(e+"/");){const r=e.lastIndexOf("/");if(r<0)return n;if((e=e.slice(0,r)).match(/^([^\/]+:\/)?\/*$/))return n;++t}return Array(t+1).join("../")+n.substr(e.length+1)};const u=!("__proto__"in Object.create(null));function c(e){return e}function g(e){if(!e)return!1;const n=e.length;if(n<9)return!1;if(95!==e.charCodeAt(n-1)||95!==e.charCodeAt(n-2)||111!==e.charCodeAt(n-3)||116!==e.charCodeAt(n-4)||111!==e.charCodeAt(n-5)||114!==e.charCodeAt(n-6)||112!==e.charCodeAt(n-7)||95!==e.charCodeAt(n-8)||95!==e.charCodeAt(n-9))return!1;for(let t=n-10;t>=0;t--)if(36!==e.charCodeAt(t))return!1;return!0}function p(e,n){return e===n?0:null===e?1:null===n?-1:e>n?1:-1}n.toSetString=u?c:function(e){return g(e)?"$"+e:e},n.fromSetString=u?c:function(e){return g(e)?e.slice(1):e},n.compareByOriginalPositions=function(e,n,t){let r=p(e.source,n.source);return 0!==r?r:0!=(r=e.originalLine-n.originalLine)?r:0!=(r=e.originalColumn-n.originalColumn)||t?r:0!=(r=e.generatedColumn-n.generatedColumn)?r:0!=(r=e.generatedLine-n.generatedLine)?r:p(e.name,n.name)},n.compareByGeneratedPositionsDeflated=function(e,n,t){let r=e.generatedLine-n.generatedLine;return 0!==r?r:0!=(r=e.generatedColumn-n.generatedColumn)||t?r:0!==(r=p(e.source,n.source))?r:0!=(r=e.originalLine-n.originalLine)?r:0!=(r=e.originalColumn-n.originalColumn)?r:p(e.name,n.name)},n.compareByGeneratedPositionsInflated=function(e,n){let t=e.generatedLine-n.generatedLine;return 0!==t?t:0!=(t=e.generatedColumn-n.generatedColumn)?t:0!==(t=p(e.source,n.source))?t:0!=(t=e.originalLine-n.originalLine)?t:0!=(t=e.originalColumn-n.originalColumn)?t:p(e.name,n.name)},n.parseSourceMapInput=function(e){return JSON.parse(e.replace(/^\)]}'[^\n]*\n/,""))},n.computeSourceURL=function(e,n,t){if(n=n||"",e&&("/"!==e[e.length-1]&&"/"!==n[0]&&(e+="/"),n=e+n),t){const e=o(t);if(!e)throw new Error("sourceMapURL could not be parsed");if(e.path){const n=e.path.lastIndexOf("/");n>=0&&(e.path=e.path.substring(0,n+1))}n=a(i(e),n)}return l(n)}},function(e,n,t){(function(n){if("function"==typeof fetch){let n=null;e.exports=function(){if("string"==typeof n)return fetch(n).then(e=>e.arrayBuffer());if(n instanceof ArrayBuffer)return Promise.resolve(n);throw new Error("You must provide the string URL or ArrayBuffer contents of lib/mappings.wasm by calling SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) before using SourceMapConsumer")},e.exports.initialize=(e=>n=e)}else{const r=t(8),o=t(7);e.exports=function(){return new Promise((e,t)=>{const i=o.join(n,"mappings.wasm");r.readFile(i,null,(n,r)=>{n?t(n):e(r.buffer)})})},e.exports.initialize=(e=>{console.debug("SourceMapConsumer.initialize is a no-op when running in node.js")})}}).call(this,"/")},function(e,n){class t{constructor(){this._array=[],this._set=new Map}static fromArray(e,n){const r=new t;for(let t=0,o=e.length;t<o;t++)r.add(e[t],n);return r}size(){return this._set.size}add(e,n){const t=this.has(e),r=this._array.length;t&&!n||this._array.push(e),t||this._set.set(e,r)}has(e){return this._set.has(e)}indexOf(e){const n=this._set.get(e);if(n>=0)return n;throw new Error('"'+e+'" is not in the set.')}at(e){if(e>=0&&e<this._array.length)return this._array[e];throw new Error("No element indexed by "+e)}toArray(){return this._array.slice()}}n.ArraySet=t},function(e,n,t){const r=t(12);n.encode=function(e){let n,t="",o=function(e){return e<0?1+(-e<<1):0+(e<<1)}(e);do{n=31&o,(o>>>=5)>0&&(n|=32),t+=r.encode(n)}while(o>0);return t}},function(e,n,t){const r=t(3),o=t(0),i=t(2).ArraySet,s=t(11).MappingList;class l{constructor(e){e||(e={}),this._file=o.getArg(e,"file",null),this._sourceRoot=o.getArg(e,"sourceRoot",null),this._skipValidation=o.getArg(e,"skipValidation",!1),this._sources=new i,this._names=new i,this._mappings=new s,this._sourcesContents=null}static fromSourceMap(e){const n=e.sourceRoot,t=new l({file:e.file,sourceRoot:n});return e.eachMapping(function(e){const r={generated:{line:e.generatedLine,column:e.generatedColumn}};null!=e.source&&(r.source=e.source,null!=n&&(r.source=o.relative(n,r.source)),r.original={line:e.originalLine,column:e.originalColumn},null!=e.name&&(r.name=e.name)),t.addMapping(r)}),e.sources.forEach(function(r){let i=r;null!==n&&(i=o.relative(n,r)),t._sources.has(i)||t._sources.add(i);const s=e.sourceContentFor(r);null!=s&&t.setSourceContent(r,s)}),t}addMapping(e){const n=o.getArg(e,"generated"),t=o.getArg(e,"original",null);let r=o.getArg(e,"source",null),i=o.getArg(e,"name",null);this._skipValidation||this._validateMapping(n,t,r,i),null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)),null!=i&&(i=String(i),this._names.has(i)||this._names.add(i)),this._mappings.add({generatedLine:n.line,generatedColumn:n.column,originalLine:null!=t&&t.line,originalColumn:null!=t&&t.column,source:r,name:i})}setSourceContent(e,n){let t=e;null!=this._sourceRoot&&(t=o.relative(this._sourceRoot,t)),null!=n?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[o.toSetString(t)]=n):this._sourcesContents&&(delete this._sourcesContents[o.toSetString(t)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))}applySourceMap(e,n,t){let r=n;if(null==n){if(null==e.file)throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');r=e.file}const s=this._sourceRoot;null!=s&&(r=o.relative(s,r));const l=this._mappings.toArray().length>0?new i:this._sources,a=new i;this._mappings.unsortedForEach(function(n){if(n.source===r&&null!=n.originalLine){const r=e.originalPositionFor({line:n.originalLine,column:n.originalColumn});null!=r.source&&(n.source=r.source,null!=t&&(n.source=o.join(t,n.source)),null!=s&&(n.source=o.relative(s,n.source)),n.originalLine=r.line,n.originalColumn=r.column,null!=r.name&&(n.name=r.name))}const i=n.source;null==i||l.has(i)||l.add(i);const u=n.name;null==u||a.has(u)||a.add(u)},this),this._sources=l,this._names=a,e.sources.forEach(function(n){const r=e.sourceContentFor(n);null!=r&&(null!=t&&(n=o.join(t,n)),null!=s&&(n=o.relative(s,n)),this.setSourceContent(n,r))},this)}_validateMapping(e,n,t,r){if(n&&"number"!=typeof n.line&&"number"!=typeof n.column)throw new Error("original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. If so, pass null for the original mapping instead of an object with empty or null values.");if(e&&"line"in e&&"column"in e&&e.line>0&&e.column>=0&&!n&&!t&&!r);else if(!(e&&"line"in e&&"column"in e&&n&&"line"in n&&"column"in n&&e.line>0&&e.column>=0&&n.line>0&&n.column>=0&&t))throw new Error("Invalid mapping: "+JSON.stringify({generated:e,source:t,original:n,name:r}))}_serializeMappings(){let e,n,t,i,s=0,l=1,a=0,u=0,c=0,g=0,p="";const h=this._mappings.toArray();for(let m=0,d=h.length;m<d;m++){if(e="",(n=h[m]).generatedLine!==l)for(s=0;n.generatedLine!==l;)e+=";",l++;else if(m>0){if(!o.compareByGeneratedPositionsInflated(n,h[m-1]))continue;e+=","}e+=r.encode(n.generatedColumn-s),s=n.generatedColumn,null!=n.source&&(i=this._sources.indexOf(n.source),e+=r.encode(i-g),g=i,e+=r.encode(n.originalLine-1-u),u=n.originalLine-1,e+=r.encode(n.originalColumn-a),a=n.originalColumn,null!=n.name&&(t=this._names.indexOf(n.name),e+=r.encode(t-c),c=t)),p+=e}return p}_generateSourcesContent(e,n){return e.map(function(e){if(!this._sourcesContents)return null;null!=n&&(e=o.relative(n,e));const t=o.toSetString(e);return Object.prototype.hasOwnProperty.call(this._sourcesContents,t)?this._sourcesContents[t]:null},this)}toJSON(){const e={version:this._version,sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};return null!=this._file&&(e.file=this._file),null!=this._sourceRoot&&(e.sourceRoot=this._sourceRoot),this._sourcesContents&&(e.sourcesContent=this._generateSourcesContent(e.sources,e.sourceRoot)),e}toString(){return JSON.stringify(this.toJSON())}}l.prototype._version=3,n.SourceMapGenerator=l},function(e,n,t){const r=t(4).SourceMapGenerator,o=t(0),i=/(\r?\n)/,s=10,l="$$$isSourceNode$$$";class a{constructor(e,n,t,r,o){this.children=[],this.sourceContents={},this.line=null==e?null:e,this.column=null==n?null:n,this.source=null==t?null:t,this.name=null==o?null:o,this[l]=!0,null!=r&&this.add(r)}static fromStringWithSourceMap(e,n,t){const r=new a,s=e.split(i);let l=0;const u=function(){return e()+(e()||"");function e(){return l<s.length?s[l++]:void 0}};let c,g=1,p=0,h=null;return n.eachMapping(function(e){if(null!==h){if(!(g<e.generatedLine)){const n=(c=s[l]||"").substr(0,e.generatedColumn-p);return s[l]=c.substr(e.generatedColumn-p),p=e.generatedColumn,m(h,n),void(h=e)}m(h,u()),g++,p=0}for(;g<e.generatedLine;)r.add(u()),g++;p<e.generatedColumn&&(c=s[l]||"",r.add(c.substr(0,e.generatedColumn)),s[l]=c.substr(e.generatedColumn),p=e.generatedColumn),h=e},this),l<s.length&&(h&&m(h,u()),r.add(s.splice(l).join(""))),n.sources.forEach(function(e){const i=n.sourceContentFor(e);null!=i&&(null!=t&&(e=o.join(t,e)),r.setSourceContent(e,i))}),r;function m(e,n){if(null===e||void 0===e.source)r.add(n);else{const i=t?o.join(t,e.source):e.source;r.add(new a(e.originalLine,e.originalColumn,i,n,e.name))}}}add(e){if(Array.isArray(e))e.forEach(function(e){this.add(e)},this);else{if(!e[l]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);e&&this.children.push(e)}return this}prepend(e){if(Array.isArray(e))for(let n=e.length-1;n>=0;n--)this.prepend(e[n]);else{if(!e[l]&&"string"!=typeof e)throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+e);this.children.unshift(e)}return this}walk(e){let n;for(let t=0,r=this.children.length;t<r;t++)(n=this.children[t])[l]?n.walk(e):""!==n&&e(n,{source:this.source,line:this.line,column:this.column,name:this.name})}join(e){let n,t;const r=this.children.length;if(r>0){for(n=[],t=0;t<r-1;t++)n.push(this.children[t]),n.push(e);n.push(this.children[t]),this.children=n}return this}replaceRight(e,n){const t=this.children[this.children.length-1];return t[l]?t.replaceRight(e,n):"string"==typeof t?this.children[this.children.length-1]=t.replace(e,n):this.children.push("".replace(e,n)),this}setSourceContent(e,n){this.sourceContents[o.toSetString(e)]=n}walkSourceContents(e){for(let n=0,t=this.children.length;n<t;n++)this.children[n][l]&&this.children[n].walkSourceContents(e);const n=Object.keys(this.sourceContents);for(let t=0,r=n.length;t<r;t++)e(o.fromSetString(n[t]),this.sourceContents[n[t]])}toString(){let e="";return this.walk(function(n){e+=n}),e}toStringWithSourceMap(e){const n={code:"",line:1,column:0},t=new r(e);let o=!1,i=null,l=null,a=null,u=null;return this.walk(function(e,r){n.code+=e,null!==r.source&&null!==r.line&&null!==r.column?(i===r.source&&l===r.line&&a===r.column&&u===r.name||t.addMapping({source:r.source,original:{line:r.line,column:r.column},generated:{line:n.line,column:n.column},name:r.name}),i=r.source,l=r.line,a=r.column,u=r.name,o=!0):o&&(t.addMapping({generated:{line:n.line,column:n.column}}),i=null,o=!1);for(let l=0,a=e.length;l<a;l++)e.charCodeAt(l)===s?(n.line++,n.column=0,l+1===a?(i=null,o=!1):o&&t.addMapping({source:r.source,original:{line:r.line,column:r.column},generated:{line:n.line,column:n.column},name:r.name})):n.column++}),this.walkSourceContents(function(e,n){t.setSourceContent(e,n)}),{code:n.code,map:t}}}n.SourceNode=a},function(e,n,t){const r=t(1);let o=null;e.exports=function(){if(o)return o;const e=[];return o=r().then(n=>WebAssembly.instantiate(n,{env:{mapping_callback(n,t,r,o,i,s,l,a,u,c){const g=new function(){this.generatedLine=0,this.generatedColumn=0,this.lastGeneratedColumn=null,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null};g.generatedLine=n+1,g.generatedColumn=t,r&&(g.lastGeneratedColumn=o-1),i&&(g.source=s,g.originalLine=l+1,g.originalColumn=a,u&&(g.name=c)),e[e.length-1](g)},start_all_generated_locations_for(){console.time("all_generated_locations_for")},end_all_generated_locations_for(){console.timeEnd("all_generated_locations_for")},start_compute_column_spans(){console.time("compute_column_spans")},end_compute_column_spans(){console.timeEnd("compute_column_spans")},start_generated_location_for(){console.time("generated_location_for")},end_generated_location_for(){console.timeEnd("generated_location_for")},start_original_location_for(){console.time("original_location_for")},end_original_location_for(){console.timeEnd("original_location_for")},start_parse_mappings(){console.time("parse_mappings")},end_parse_mappings(){console.timeEnd("parse_mappings")},start_sort_by_generated_location(){console.time("sort_by_generated_location")},end_sort_by_generated_location(){console.timeEnd("sort_by_generated_location")},start_sort_by_original_location(){console.time("sort_by_original_location")},end_sort_by_original_location(){console.timeEnd("sort_by_original_location")}}})).then(n=>({exports:n.instance.exports,withMappingCallback:(n,t)=>{e.push(n);try{t()}finally{e.pop()}}})).then(null,e=>{throw o=null,e})}},function(n,t){n.exports=e},function(e,t){e.exports=n},function(e,n){n.GREATEST_LOWER_BOUND=1,n.LEAST_UPPER_BOUND=2,n.search=function(e,t,r,o){if(0===t.length)return-1;let i=function e(t,r,o,i,s,l){const a=Math.floor((r-t)/2)+t,u=s(o,i[a],!0);return 0===u?a:u>0?r-a>1?e(a,r,o,i,s,l):l==n.LEAST_UPPER_BOUND?r<i.length?r:-1:a:a-t>1?e(t,a,o,i,s,l):l==n.LEAST_UPPER_BOUND?a:t<0?-1:t}(-1,t.length,e,t,r,o||n.GREATEST_LOWER_BOUND);if(i<0)return-1;for(;i-1>=0&&0===r(t[i],t[i-1],!0);)--i;return i}},function(e,n,t){const r=t(0),o=t(9),i=t(2).ArraySet,s=(t(3),t(1)),l=t(6),a=Symbol("smcInternal");class u{constructor(e,n){return e==a?Promise.resolve(this):function(e,n){let t=e;"string"==typeof e&&(t=r.parseSourceMapInput(e));const o=null!=t.sections?new g(t,n):new c(t,n);return Promise.resolve(o)}(e,n)}static initialize(e){s.initialize(e["lib/mappings.wasm"])}static fromSourceMap(e,n){return function(e,n){return c.fromSourceMap(e,n)}(e,n)}static async with(e,n,t){const r=await new u(e,n);try{return await t(r)}finally{r.destroy()}}_parseMappings(e,n){throw new Error("Subclasses must implement _parseMappings")}eachMapping(e,n,t){throw new Error("Subclasses must implement eachMapping")}allGeneratedPositionsFor(e){throw new Error("Subclasses must implement allGeneratedPositionsFor")}destroy(){throw new Error("Subclasses must implement destroy")}}u.prototype._version=3,u.GENERATED_ORDER=1,u.ORIGINAL_ORDER=2,u.GREATEST_LOWER_BOUND=1,u.LEAST_UPPER_BOUND=2,n.SourceMapConsumer=u;class c extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version");let a=r.getArg(o,"sources");const u=r.getArg(o,"names",[]);let c=r.getArg(o,"sourceRoot",null);const g=r.getArg(o,"sourcesContent",null),p=r.getArg(o,"mappings"),h=r.getArg(o,"file",null);if(s!=t._version)throw new Error("Unsupported version: "+s);return c&&(c=r.normalize(c)),a=a.map(String).map(r.normalize).map(function(e){return c&&r.isAbsolute(c)&&r.isAbsolute(e)?r.relative(c,e):e}),t._names=i.fromArray(u.map(String),!0),t._sources=i.fromArray(a,!0),t._absoluteSources=t._sources.toArray().map(function(e){return r.computeSourceURL(c,e,n)}),t.sourceRoot=c,t.sourcesContent=g,t._mappings=p,t._sourceMapURL=n,t.file=h,t._computedColumnSpans=!1,t._mappingsPtr=0,t._wasm=null,l().then(e=>(t._wasm=e,t))})}_findSourceIndex(e){let n=e;if(null!=this.sourceRoot&&(n=r.relative(this.sourceRoot,n)),this._sources.has(n))return this._sources.indexOf(n);for(let n=0;n<this._absoluteSources.length;++n)if(this._absoluteSources[n]==e)return n;return-1}static fromSourceMap(e,n){return new c(e.toString())}get sources(){return this._absoluteSources.slice()}_getMappingsPtr(){return 0===this._mappingsPtr&&this._parseMappings(this._mappings,this.sourceRoot),this._mappingsPtr}_parseMappings(e,n){const t=e.length,r=this._wasm.exports.allocate_mappings(t),o=new Uint8Array(this._wasm.exports.memory.buffer,r,t);for(let n=0;n<t;n++)o[n]=e.charCodeAt(n);const i=this._wasm.exports.parse_mappings(r);if(!i){const e=this._wasm.exports.get_last_error();let n=`Error parsing mappings (code ${e}): `;switch(e){case 1:n+="the mappings contained a negative line, column, source index, or name index";break;case 2:n+="the mappings contained a number larger than 2**32";break;case 3:n+="reached EOF while in the middle of parsing a VLQ";break;case 4:n+="invalid base 64 character while parsing a VLQ";break;default:n+="unknown error code"}throw new Error(n)}this._mappingsPtr=i}eachMapping(e,n,t){const o=n||null,i=t||u.GENERATED_ORDER,s=this.sourceRoot;this._wasm.withMappingCallback(n=>{null!==n.source&&(n.source=this._sources.at(n.source),n.source=r.computeSourceURL(s,n.source,this._sourceMapURL),null!==n.name&&(n.name=this._names.at(n.name))),e.call(o,n)},()=>{switch(i){case u.GENERATED_ORDER:this._wasm.exports.by_generated_location(this._getMappingsPtr());break;case u.ORIGINAL_ORDER:this._wasm.exports.by_original_location(this._getMappingsPtr());break;default:throw new Error("Unknown order of iteration.")}})}allGeneratedPositionsFor(e){let n=r.getArg(e,"source");const t=r.getArg(e,"line"),o=e.column||0;if((n=this._findSourceIndex(n))<0)return[];if(t<1)throw new Error("Line numbers must be >= 1");if(o<0)throw new Error("Column numbers must be >= 0");const i=[];return this._wasm.withMappingCallback(e=>{let n=e.lastGeneratedColumn;this._computedColumnSpans&&null===n&&(n=1/0),i.push({line:e.generatedLine,column:e.generatedColumn,lastColumn:n})},()=>{this._wasm.exports.all_generated_locations_for(this._getMappingsPtr(),n,t-1,"column"in e,o)}),i}destroy(){0!==this._mappingsPtr&&(this._wasm.exports.free_mappings(this._mappingsPtr),this._mappingsPtr=0)}computeColumnSpans(){this._computedColumnSpans||(this._wasm.exports.compute_column_spans(this._getMappingsPtr()),this._computedColumnSpans=!0)}originalPositionFor(e){const n={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")};if(n.generatedLine<1)throw new Error("Line numbers must be >= 1");if(n.generatedColumn<0)throw new Error("Column numbers must be >= 0");let t,o=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==o&&(o=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>t=e,()=>{this._wasm.exports.original_location_for(this._getMappingsPtr(),n.generatedLine-1,n.generatedColumn,o)}),t&&t.generatedLine===n.generatedLine){let e=r.getArg(t,"source",null);null!==e&&(e=this._sources.at(e),e=r.computeSourceURL(this.sourceRoot,e,this._sourceMapURL));let n=r.getArg(t,"name",null);return null!==n&&(n=this._names.at(n)),{source:e,line:r.getArg(t,"originalLine",null),column:r.getArg(t,"originalColumn",null),name:n}}return{source:null,line:null,column:null,name:null}}hasContentsOfAllSources(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))}sourceContentFor(e,n){if(!this.sourcesContent)return null;const t=this._findSourceIndex(e);if(t>=0)return this.sourcesContent[t];let o,i=e;if(null!=this.sourceRoot&&(i=r.relative(this.sourceRoot,i)),null!=this.sourceRoot&&(o=r.urlParse(this.sourceRoot))){const e=i.replace(/^file:\/\//,"");if("file"==o.scheme&&this._sources.has(e))return this.sourcesContent[this._sources.indexOf(e)];if((!o.path||"/"==o.path)&&this._sources.has("/"+i))return this.sourcesContent[this._sources.indexOf("/"+i)]}if(n)return null;throw new Error('"'+i+'" is not in the SourceMap.')}generatedPositionFor(e){let n=r.getArg(e,"source");if((n=this._findSourceIndex(n))<0)return{line:null,column:null,lastColumn:null};const t={source:n,originalLine:r.getArg(e,"line"),originalColumn:r.getArg(e,"column")};if(t.originalLine<1)throw new Error("Line numbers must be >= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");let o,i=r.getArg(e,"bias",u.GREATEST_LOWER_BOUND);if(null==i&&(i=u.GREATEST_LOWER_BOUND),this._wasm.withMappingCallback(e=>o=e,()=>{this._wasm.exports.generated_location_for(this._getMappingsPtr(),t.source,t.originalLine-1,t.originalColumn,i)}),o&&o.source===t.source){let e=o.lastGeneratedColumn;return this._computedColumnSpans&&null===e&&(e=1/0),{line:r.getArg(o,"generatedLine",null),column:r.getArg(o,"generatedColumn",null),lastColumn:e}}return{line:null,column:null,lastColumn:null}}}c.prototype.consumer=u,n.BasicSourceMapConsumer=c;class g extends u{constructor(e,n){return super(a).then(t=>{let o=e;"string"==typeof e&&(o=r.parseSourceMapInput(e));const s=r.getArg(o,"version"),l=r.getArg(o,"sections");if(s!=t._version)throw new Error("Unsupported version: "+s);t._sources=new i,t._names=new i,t.__generatedMappings=null,t.__originalMappings=null,t.__generatedMappingsUnsorted=null,t.__originalMappingsUnsorted=null;let a={line:-1,column:0};return Promise.all(l.map(e=>{if(e.url)throw new Error("Support for url field in sections not implemented.");const t=r.getArg(e,"offset"),o=r.getArg(t,"line"),i=r.getArg(t,"column");if(o<a.line||o===a.line&&i<a.column)throw new Error("Section offsets must be ordered and non-overlapping.");return a=t,new u(r.getArg(e,"map"),n).then(e=>({generatedOffset:{generatedLine:o+1,generatedColumn:i+1},consumer:e}))})).then(e=>(t._sections=e,t))})}get _generatedMappings(){return this.__generatedMappings||this._sortGeneratedMappings(),this.__generatedMappings}get _originalMappings(){return this.__originalMappings||this._sortOriginalMappings(),this.__originalMappings}get _generatedMappingsUnsorted(){return this.__generatedMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappingsUnsorted}get _originalMappingsUnsorted(){return this.__originalMappingsUnsorted||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappingsUnsorted}_sortGeneratedMappings(){const e=this._generatedMappingsUnsorted;e.sort(r.compareByGeneratedPositionsDeflated),this.__generatedMappings=e}_sortOriginalMappings(){const e=this._originalMappingsUnsorted;e.sort(r.compareByOriginalPositions),this.__originalMappings=e}get sources(){const e=[];for(let n=0;n<this._sections.length;n++)for(let t=0;t<this._sections[n].consumer.sources.length;t++)e.push(this._sections[n].consumer.sources[t]);return e}originalPositionFor(e){const n={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")},t=o.search(n,this._sections,function(e,n){const t=e.generatedLine-n.generatedOffset.generatedLine;return t||e.generatedColumn-n.generatedOffset.generatedColumn}),i=this._sections[t];return i?i.consumer.originalPositionFor({line:n.generatedLine-(i.generatedOffset.generatedLine-1),column:n.generatedColumn-(i.generatedOffset.generatedLine===n.generatedLine?i.generatedOffset.generatedColumn-1:0),bias:e.bias}):{source:null,line:null,column:null,name:null}}hasContentsOfAllSources(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})}sourceContentFor(e,n){for(let n=0;n<this._sections.length;n++){const t=this._sections[n].consumer.sourceContentFor(e,!0);if(t)return t}if(n)return null;throw new Error('"'+e+'" is not in the SourceMap.')}generatedPositionFor(e){for(let n=0;n<this._sections.length;n++){const t=this._sections[n];if(-1===t.consumer._findSourceIndex(r.getArg(e,"source")))continue;const o=t.consumer.generatedPositionFor(e);if(o){return{line:o.line+(t.generatedOffset.generatedLine-1),column:o.column+(t.generatedOffset.generatedLine===o.line?t.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}}_parseMappings(e,n){const t=this.__generatedMappingsUnsorted=[],o=this.__originalMappingsUnsorted=[];for(let e=0;e<this._sections.length;e++){const n=this._sections[e],i=[];n.consumer.eachMapping(e=>i.push(e));for(let e=0;e<i.length;e++){const s=i[e];let l=r.computeSourceURL(n.consumer.sourceRoot,null,this._sourceMapURL);this._sources.add(l),l=this._sources.indexOf(l);let a=null;s.name&&(this._names.add(s.name),a=this._names.indexOf(s.name));const u={source:l,generatedLine:s.generatedLine+(n.generatedOffset.generatedLine-1),generatedColumn:s.generatedColumn+(n.generatedOffset.generatedLine===s.generatedLine?n.generatedOffset.generatedColumn-1:0),originalLine:s.originalLine,originalColumn:s.originalColumn,name:a};t.push(u),"number"==typeof u.originalLine&&o.push(u)}}}eachMapping(e,n,t){const o=n||null;let i;switch(t||u.GENERATED_ORDER){case u.GENERATED_ORDER:i=this._generatedMappings;break;case u.ORIGINAL_ORDER:i=this._originalMappings;break;default:throw new Error("Unknown order of iteration.")}const s=this.sourceRoot;i.map(function(e){let n=null;return null!==e.source&&(n=this._sources.at(e.source),n=r.computeSourceURL(s,n,this._sourceMapURL)),{source:n,generatedLine:e.generatedLine,generatedColumn:e.generatedColumn,originalLine:e.originalLine,originalColumn:e.originalColumn,name:null===e.name?null:this._names.at(e.name)}},this).forEach(e,o)}_findMapping(e,n,t,r,i,s){if(e[t]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[t]);if(e[r]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[r]);return o.search(e,n,i,s)}allGeneratedPositionsFor(e){const n=r.getArg(e,"line"),t={source:r.getArg(e,"source"),originalLine:n,originalColumn:r.getArg(e,"column",0)};if(t.source=this._findSourceIndex(t.source),t.source<0)return[];if(t.originalLine<1)throw new Error("Line numbers must be >= 1");if(t.originalColumn<0)throw new Error("Column numbers must be >= 0");const i=[];let s=this._findMapping(t,this._originalMappings,"originalLine","originalColumn",r.compareByOriginalPositions,o.LEAST_UPPER_BOUND);if(s>=0){let t=this._originalMappings[s];if(void 0===e.column){const e=t.originalLine;for(;t&&t.originalLine===e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}else{const e=t.originalColumn;for(;t&&t.originalLine===n&&t.originalColumn==e;){let e=t.lastGeneratedColumn;this._computedColumnSpans&&null===e&&(e=1/0),i.push({line:r.getArg(t,"generatedLine",null),column:r.getArg(t,"generatedColumn",null),lastColumn:e}),t=this._originalMappings[++s]}}}return i}destroy(){for(let e=0;e<this._sections.length;e++)this._sections[e].consumer.destroy()}}n.IndexedSourceMapConsumer=g},function(e,n,t){const r=t(0);n.MappingList=class{constructor(){this._array=[],this._sorted=!0,this._last={generatedLine:-1,generatedColumn:0}}unsortedForEach(e,n){this._array.forEach(e,n)}add(e){!function(e,n){const t=e.generatedLine,o=n.generatedLine,i=e.generatedColumn,s=n.generatedColumn;return o>t||o==t&&s>=i||r.compareByGeneratedPositionsInflated(e,n)<=0}(this._last,e)?(this._sorted=!1,this._array.push(e)):(this._last=e,this._array.push(e))}toArray(){return this._sorted||(this._array.sort(r.compareByGeneratedPositionsInflated),this._sorted=!0),this._array}}},function(e,n){const t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");n.encode=function(e){if(0<=e&&e<t.length)return t[e];throw new TypeError("Must be between 0 and 63: "+e)}},function(e,n,t){n.SourceMapGenerator=t(4).SourceMapGenerator,n.SourceMapConsumer=t(10).SourceMapConsumer,n.SourceNode=t(5).SourceNode}])});
\ No newline at end of file
diff --git a/lib/read-wasm.js b/lib/read-wasm.js
index 9bb64922..89cb8178 100644
--- a/lib/read-wasm.js
+++ b/lib/read-wasm.js
@@ -1,20 +1,23 @@
 if (typeof fetch === "function") {
   // Web version of reading a wasm file into an array buffer.
 
-  let mappingsWasmUrl = null;
+  let mappingsWasm = null;
 
   module.exports = function readWasm() {
-    if (typeof mappingsWasmUrl !== "string") {
-      throw new Error("You must provide the URL of lib/mappings.wasm by calling " +
-                      "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " +
-                      "before using SourceMapConsumer");
+    if (typeof mappingsWasm === "string") {
+      return fetch(mappingsWasm)
+        .then(response => response.arrayBuffer());
     }
-
-    return fetch(mappingsWasmUrl)
-      .then(response => response.arrayBuffer());
+    if (mappingsWasm instanceof ArrayBuffer) {
+      return Promise.resolve(mappingsWasm);
+    }
+    throw new Error("You must provide the string URL or ArrayBuffer contents " +
+                    "of lib/mappings.wasm by calling " +
+                    "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " +
+                    "before using SourceMapConsumer");
   };
 
-  module.exports.initialize = url => mappingsWasmUrl = url;
+  module.exports.initialize = input => mappingsWasm = input;
 } else {
   // Node version of reading a wasm file into an array buffer.
   const fs = require("fs");