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Name	Size	Last Modified
[D]compress/	-	2022-10-08 17:28:30
[D]utils/	-	2022-10-08 17:28:29
[F]ast.js Edit	91.37 KB	2022-10-08 17:28:23
[F]cli.js Edit	17.94 KB	2022-10-08 17:28:27
[F]equivalent-to.js Edit	8.08 KB	2022-10-08 17:28:28
[F]minify.js Edit	12.78 KB	2022-10-08 17:28:29
[F]mozilla-ast.js Edit	56.01 KB	2022-10-08 17:28:30
[F]output.js Edit	76.08 KB	2022-10-08 17:28:30
[F]parse.js Edit	119.72 KB	2022-10-08 17:28:30
[F]propmangle.js Edit	12.43 KB	2022-10-08 17:28:30
[F]scope.js Edit	34.02 KB	2022-10-08 17:28:30
[F]size.js Edit	11.12 KB	2022-10-08 17:28:30
[F]sourcemap.js Edit	4.86 KB	2022-10-08 17:28:30
[F]transform.js Edit	9.54 KB	2022-10-08 17:28:31

Editing: minify.js

"use strict";
/* eslint-env browser, es6, node */

import {
    defaults,
    map_from_object,
    map_to_object,
    HOP,
} from "./utils/index.js";
import { AST_Toplevel, AST_Node, walk, AST_Scope } from "./ast.js";
import { parse } from "./parse.js";
import { OutputStream } from "./output.js";
import { Compressor } from "./compress/index.js";
import { base54 } from "./scope.js";
import { SourceMap } from "./sourcemap.js";
import {
    mangle_properties,
    mangle_private_properties,
    reserve_quoted_keys,
} from "./propmangle.js";

var to_ascii = typeof atob == "undefined" ? function(b64) {
    return Buffer.from(b64, "base64").toString();
} : atob;
var to_base64 = typeof btoa == "undefined" ? function(str) {
    return Buffer.from(str).toString("base64");
} : btoa;

function read_source_map(code) {
    var match = /(?:^|[^.])\/\/# sourceMappingURL=data:application\/json(;[\w=-]*)?;base64,([+/0-9A-Za-z]*=*)\s*$/.exec(code);
    if (!match) {
        console.warn("inline source map not found");
        return null;
    }
    return to_ascii(match[2]);
}

function cache_to_json(cache) {
    return {
        props: map_to_object(cache.props)
    };
}

function log_input(files, options, fs, debug_folder) {
    if (!(fs && fs.writeFileSync && fs.mkdirSync)) {
        return;
    }

try {
        fs.mkdirSync(debug_folder);
    } catch (e) {
        if (e.code !== "EEXIST") throw e;
    }

const log_path = `${debug_folder}/terser-debug-${(Math.random() * 9999999) | 0}.log`;

options = options || {};

const options_str = JSON.stringify(options, (_key, thing) => {
        if (typeof thing === "function") return "[Function " + thing.toString() + "]";
        if (thing instanceof RegExp) return "[RegExp " + thing.toString() + "]";
        return thing;
    }, 4);

fs.writeFileSync(log_path, "Options: \n" + options_str + "\n\nInput files:\n\n" + files_str(files) + "\n");
}

async function minify(files, options, _fs_module) {
    if (
        _fs_module
        && typeof process === "object"
        && process.env
        && typeof process.env.TERSER_DEBUG_DIR === "string"
    ) {
        log_input(files, options, _fs_module, process.env.TERSER_DEBUG_DIR);
    }

options = defaults(options, {
        compress: {},
        ecma: undefined,
        enclose: false,
        ie8: false,
        keep_classnames: undefined,
        keep_fnames: false,
        mangle: {},
        module: false,
        nameCache: null,
        output: null,
        format: null,
        parse: {},
        rename: undefined,
        safari10: false,
        sourceMap: false,
        spidermonkey: false,
        timings: false,
        toplevel: false,
        warnings: false,
        wrap: false,
    }, true);

// -- Parse phase --
    if (timings) timings.parse = Date.now();
    var toplevel;
    if (files instanceof AST_Toplevel) {
        toplevel = files;
    } else {
        if (typeof files == "string" || (options.parse.spidermonkey && !Array.isArray(files))) {
            files = [ files ];
        }
        options.parse = options.parse || {};
        options.parse.toplevel = null;

if (options.parse.spidermonkey) {
            options.parse.toplevel = AST_Node.from_mozilla_ast(Object.keys(files).reduce(function(toplevel, name) {
                if (!toplevel) return files[name];
                toplevel.body = toplevel.body.concat(files[name].body);
                return toplevel;
            }, null));
        } else {
            delete options.parse.spidermonkey;

for (var name in files) if (HOP(files, name)) {
                options.parse.filename = name;
                options.parse.toplevel = parse(files[name], options.parse);
                if (options.sourceMap && options.sourceMap.content == "inline") {
                    if (Object.keys(files).length > 1)
                        throw new Error("inline source map only works with singular input");
                    options.sourceMap.content = read_source_map(files[name]);
                }
            }
        }

toplevel = options.parse.toplevel;
    }
    if (quoted_props && options.mangle.properties.keep_quoted !== "strict") {
        reserve_quoted_keys(toplevel, quoted_props);
    }
    if (options.wrap) {
        toplevel = toplevel.wrap_commonjs(options.wrap);
    }
    if (options.enclose) {
        toplevel = toplevel.wrap_enclose(options.enclose);
    }
    if (timings) timings.rename = Date.now();
    // disable rename on harmony due to expand_names bug in for-of loops
    // https://github.com/mishoo/UglifyJS2/issues/2794
    if (0 && options.rename) {
        toplevel.figure_out_scope(options.mangle);
        toplevel.expand_names(options.mangle);
    }

// -- Compress phase --
    if (timings) timings.compress = Date.now();
    if (options.compress) {
        toplevel = new Compressor(options.compress, {
            mangle_options: options.mangle
        }).compress(toplevel);
    }

// -- Mangle phase --
    if (timings) timings.scope = Date.now();
    if (options.mangle) toplevel.figure_out_scope(options.mangle);
    if (timings) timings.mangle = Date.now();
    if (options.mangle) {
        toplevel.compute_char_frequency(options.mangle);
        toplevel.mangle_names(options.mangle);
        toplevel = mangle_private_properties(toplevel, options.mangle);
    }
    if (timings) timings.properties = Date.now();
    if (options.mangle && options.mangle.properties) {
        toplevel = mangle_properties(toplevel, options.mangle.properties);
    }

// Format phase
    if (timings) timings.format = Date.now();
    var result = {};
    if (options.format.ast) {
        result.ast = toplevel;
    }
    if (options.format.spidermonkey) {
        result.ast = toplevel.to_mozilla_ast();
    }
    if (!HOP(options.format, "code") || options.format.code) {
        if (!options.format.ast) {
            // Destroy stuff to save RAM. (unless the deprecated `ast` option is on)
            options.format._destroy_ast = true;

walk(toplevel, node => {
                if (node instanceof AST_Scope) {
                    node.variables = undefined;
                    node.enclosed = undefined;
                    node.parent_scope = undefined;
                }
                if (node.block_scope) {
                    node.block_scope.variables = undefined;
                    node.block_scope.enclosed = undefined;
                    node.parent_scope = undefined;
                }
            });
        }

if (options.sourceMap) {
            if (options.sourceMap.includeSources && files instanceof AST_Toplevel) {
                throw new Error("original source content unavailable");
            }
            options.format.source_map = await SourceMap({
                file: options.sourceMap.filename,
                orig: options.sourceMap.content,
                root: options.sourceMap.root,
                files: options.sourceMap.includeSources ? files : null,
            });
        }
        delete options.format.ast;
        delete options.format.code;
        delete options.format.spidermonkey;
        var stream = OutputStream(options.format);
        toplevel.print(stream);
        result.code = stream.get();
        if (options.sourceMap) {
            Object.defineProperty(result, "map", {
                configurable: true,
                enumerable: true,
                get() {
                    const map = options.format.source_map.getEncoded();
                    return (result.map = options.sourceMap.asObject ? map : JSON.stringify(map));
                },
                set(value) {
                    Object.defineProperty(result, "map", {
                        value,
                        writable: true,
                    });
                }
            });
            result.decoded_map = options.format.source_map.getDecoded();
            if (options.sourceMap.url == "inline") {
                var sourceMap = typeof result.map === "object" ? JSON.stringify(result.map) : result.map;
                result.code += "\n//# sourceMappingURL=data:application/json;charset=utf-8;base64," + to_base64(sourceMap);
            } else if (options.sourceMap.url) {
                result.code += "\n//# sourceMappingURL=" + options.sourceMap.url;
            }
        }
    }
    if (options.nameCache && options.mangle) {
        if (options.mangle.cache) options.nameCache.vars = cache_to_json(options.mangle.cache);
        if (options.mangle.properties && options.mangle.properties.cache) {
            options.nameCache.props = cache_to_json(options.mangle.properties.cache);
        }
    }
    if (options.format && options.format.source_map) {
        options.format.source_map.destroy();
    }
    if (timings) {
        timings.end = Date.now();
        result.timings = {
            parse: 1e-3 * (timings.rename - timings.parse),
            rename: 1e-3 * (timings.compress - timings.rename),
            compress: 1e-3 * (timings.scope - timings.compress),
            scope: 1e-3 * (timings.mangle - timings.scope),
            mangle: 1e-3 * (timings.properties - timings.mangle),
            properties: 1e-3 * (timings.format - timings.properties),
            format: 1e-3 * (timings.end - timings.format),
            total: 1e-3 * (timings.end - timings.start)
        };
    }
    return result;
}

export {
  minify,
  to_ascii,
};

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