Brunobkr/llama.cpp_AlgMor24_github

1const readWasm = require("../lib/read-wasm");2 3/**4 * Provide the JIT with a nice shape / hidden class.5 */6function Mapping() {7  this.generatedLine = 0;8  this.generatedColumn = 0;9  this.lastGeneratedColumn = null;10  this.source = null;11  this.originalLine = null;12  this.originalColumn = null;13  this.name = null;14}15 16let cachedWasm = null;17 18module.exports = function wasm() {19  if (cachedWasm) {20    return cachedWasm;21  }22 23  const callbackStack = [];24 25  cachedWasm = readWasm().then(buffer => {26      return WebAssembly.instantiate(buffer, {27        env: {28          mapping_callback(29            generatedLine,30            generatedColumn,31 32            hasLastGeneratedColumn,33            lastGeneratedColumn,34 35            hasOriginal,36            source,37            originalLine,38            originalColumn,39 40            hasName,41            name42          ) {43            const mapping = new Mapping();44            // JS uses 1-based line numbers, wasm uses 0-based.45            mapping.generatedLine = generatedLine + 1;46            mapping.generatedColumn = generatedColumn;47 48            if (hasLastGeneratedColumn) {49              // JS uses inclusive last generated column, wasm uses exclusive.50              mapping.lastGeneratedColumn = lastGeneratedColumn - 1;51            }52 53            if (hasOriginal) {54              mapping.source = source;55              // JS uses 1-based line numbers, wasm uses 0-based.56              mapping.originalLine = originalLine + 1;57              mapping.originalColumn = originalColumn;58 59              if (hasName) {60                mapping.name = name;61              }62            }63 64            callbackStack[callbackStack.length - 1](mapping);65          },66 67          start_all_generated_locations_for() { console.time("all_generated_locations_for"); },68          end_all_generated_locations_for() { console.timeEnd("all_generated_locations_for"); },69 70          start_compute_column_spans() { console.time("compute_column_spans"); },71          end_compute_column_spans() { console.timeEnd("compute_column_spans"); },72 73          start_generated_location_for() { console.time("generated_location_for"); },74          end_generated_location_for() { console.timeEnd("generated_location_for"); },75 76          start_original_location_for() { console.time("original_location_for"); },77          end_original_location_for() { console.timeEnd("original_location_for"); },78 79          start_parse_mappings() { console.time("parse_mappings"); },80          end_parse_mappings() { console.timeEnd("parse_mappings"); },81 82          start_sort_by_generated_location() { console.time("sort_by_generated_location"); },83          end_sort_by_generated_location() { console.timeEnd("sort_by_generated_location"); },84 85          start_sort_by_original_location() { console.time("sort_by_original_location"); },86          end_sort_by_original_location() { console.timeEnd("sort_by_original_location"); },87        }88      });89  }).then(Wasm => {90    return {91      exports: Wasm.instance.exports,92      withMappingCallback: (mappingCallback, f) => {93        callbackStack.push(mappingCallback);94        try {95          f();96        } finally {97          callbackStack.pop();98        }99      }100    };101  }).then(null, e => {102    cachedWasm = null;103    throw e;104  });105 106  return cachedWasm;107};108