| 1 |
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| 2 | (function() {
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| 3 | var CONFIG_NAME, Scope, compile, config, convOptions, defaults, escodegen, esprima, findup, fs, kit, path, root, transform, util;
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| 4 |
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| 5 | util = require("util");
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| 6 |
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| 7 | esprima = require("esprima");
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| 8 |
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| 9 | escodegen = require("escodegen");
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| 10 |
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| 11 | config = require("./config");
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| 12 |
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| 13 | kit = require("./kit");
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| 14 |
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| 15 | Scope = require("./scope").Scope;
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| 16 |
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| 17 | require("./stmt");
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| 18 |
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| 19 | require("./par");
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| 20 |
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| 21 | fs = require("fs");
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| 22 |
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| 23 | root = module.exports;
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| 24 |
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| 25 | findup = require("findup").sync;
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| 26 |
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| 27 | path = require("path");
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| 28 |
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| 29 | defaults = {
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| 30 | loc: true,
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| 31 | range: true,
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| 32 | token: true,
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| 33 | comment: true
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| 34 | };
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| 35 |
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| 36 | root.FILE_EXTENSIONS = {
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| 37 | ".mjs": {
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| 38 | profile: "minimal"
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| 39 | },
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| 40 | ".json": false
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| 41 | };
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| 42 |
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| 43 | defaults = {
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| 44 | parser: {
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| 45 | loc: true,
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| 46 | range: true,
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| 47 | token: true,
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| 48 | comment: true
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| 49 | },
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| 50 | transform: {}
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| 51 | };
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| 52 |
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| 53 | CONFIG_NAME = "mfjs-config.json";
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| 54 |
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| 55 | convOptions = function(v, fn) {
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| 56 | var e, error, f;
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| 57 | if (v == null) {
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| 58 | v = {};
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| 59 | }
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| 60 | if (v === true) {
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| 61 | v = {};
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| 62 | }
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| 63 | if (v.substr != null) {
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| 64 | v = {
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| 65 | profile: v
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| 66 | };
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| 67 | }
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| 68 | v = kit.merge({}, defaults, v);
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| 69 | if (fn == null) {
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| 70 | fn = v.transform.filename;
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| 71 | }
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| 72 | if (fn != null) {
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| 73 | v.parser.source = v.transform.filename = fn;
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| 74 | try {
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| 75 | f = findup(path.dirname(fn), CONFIG_NAME);
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| 76 | if (config.versbose) {
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| 77 | console.log('using config #{f}');
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| 78 | }
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| 79 | } catch (error) {
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| 80 | e = error;
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| 81 | if (config.verbose) {
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| 82 | console.log('looking for #{CONFIG_NAME} failed: #{e}');
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| 83 | }
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| 84 | }
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| 85 | if (f != null) {
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| 86 | kit.merge(v, require(path.join(f, CONFIG_NAME)));
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| 87 | }
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| 88 | }
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| 89 | return v;
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| 90 | };
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| 91 |
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| 92 | root.compile = compile = function(str, opts, fn) {
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| 93 | var ast, nast;
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| 94 | opts = convOptions(opts, fn);
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| 95 | ast = esprima.parse(str, opts.parser);
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| 96 | nast = transform(ast, opts);
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| 97 | return escodegen.generate(nast, opts.printer);
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| 98 | };
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| 99 |
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| 100 | root.compileFile = function(fn, opts) {
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| 101 | var txt;
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| 102 | txt = fs.readFileSync(fn, "utf8");
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| 103 | opts = convOptions(opts, fn);
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| 104 | if (opts.parse == null) {
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| 105 | opts.parse = {};
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| 106 | }
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| 107 | return compile(txt, opts);
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| 108 | };
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| 109 |
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| 110 | root.parse = function(str, opts) {
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| 111 | return esprima.parse(str, opts);
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| 112 | };
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| 113 |
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| 114 | root.print = function(str) {
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| 115 | var ast;
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| 116 | ast = root.parse(str);
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| 117 | return this.pretty(ast);
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| 118 | };
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| 119 |
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| 120 | root.pretty = function(ast, opts) {
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| 121 | return escodegen.generate(ast, convOptions(opts).printer);
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| 122 | };
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| 123 |
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| 124 | root.transform = transform = function(ast, opts) {
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| 125 | var ctx, i, oldConfig, res;
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| 126 | oldConfig = kit.merge({}, config);
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| 127 | if (opts == null) {
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| 128 | opts = {};
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| 129 | }
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| 130 | try {
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| 131 | if (opts.transform != null) {
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| 132 | kit.merge(config, opts.transform);
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| 133 | }
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| 134 | ctx = new Scope();
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| 135 | res = ctx.prog(ast, opts);
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| 136 | res.type = "Program";
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| 137 | return res;
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| 138 | } finally {
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| 139 | for (i in config) {
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| 140 | delete config[i];
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| 141 | }
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| 142 | kit.merge(config, oldConfig);
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| 143 | }
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| 144 | };
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| 145 |
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| 146 | }).call(this);
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