1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/imptests/WebIDLParser.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,841 @@
1.4 +
1.5 +
1.6 +(function () {
1.7 + var tokenise = function (str) {
1.8 + var tokens = []
1.9 + , re = {
1.10 + "float": /^-?(([0-9]+\.[0-9]*|[0-9]*\.[0-9]+)([Ee][-+]?[0-9]+)?|[0-9]+[Ee][-+]?[0-9]+)/
1.11 + , "integer": /^-?(0([Xx][0-9A-Fa-f]+|[0-7]*)|[1-9][0-9]*)/
1.12 + , "identifier": /^[A-Z_a-z][0-9A-Z_a-z]*/
1.13 + , "string": /^"[^"]*"/
1.14 + , "whitespace": /^(?:[\t\n\r ]+|[\t\n\r ]*((\/\/.*|\/\*(.|\n|\r)*?\*\/)[\t\n\r ]*))+/
1.15 + , "other": /^[^\t\n\r 0-9A-Z_a-z]/
1.16 + }
1.17 + , types = []
1.18 + ;
1.19 + for (var k in re) types.push(k);
1.20 + while (str.length > 0) {
1.21 + var matched = false;
1.22 + for (var i = 0, n = types.length; i < n; i++) {
1.23 + var type = types[i];
1.24 + str = str.replace(re[type], function (tok) {
1.25 + tokens.push({ type: type, value: tok });
1.26 + matched = true;
1.27 + return "";
1.28 + });
1.29 + if (matched) break;
1.30 + }
1.31 + if (matched) continue;
1.32 + throw new Error("Token stream not progressing");
1.33 + }
1.34 + return tokens;
1.35 + };
1.36 +
1.37 + var parse = function (tokens) {
1.38 + var line = 1;
1.39 + tokens = tokens.slice();
1.40 +
1.41 + var FLOAT = "float"
1.42 + , INT = "integer"
1.43 + , ID = "identifier"
1.44 + , STR = "string"
1.45 + , OTHER = "other"
1.46 + ;
1.47 +
1.48 + var WebIDLParseError = function (str, line, input, tokens) {
1.49 + this.message = str;
1.50 + this.line = line;
1.51 + this.input = input;
1.52 + this.tokens = tokens;
1.53 + };
1.54 + WebIDLParseError.prototype.toString = function () {
1.55 + return this.message + ", line " + this.line + " (tokens: '" + this.input + "')\n" +
1.56 + JSON.stringify(this.tokens, null, 4);
1.57 + };
1.58 +
1.59 + var error = function (str) {
1.60 + var tok = "", numTokens = 0, maxTokens = 5;
1.61 + while (numTokens < maxTokens && tokens.length > numTokens) {
1.62 + tok += tokens[numTokens].value;
1.63 + numTokens++;
1.64 + }
1.65 + throw new WebIDLParseError(str, line, tok, tokens.slice(0, 5));
1.66 + };
1.67 +
1.68 + var last_token = null;
1.69 +
1.70 + var consume = function (type, value) {
1.71 + if (!tokens.length || tokens[0].type !== type) return;
1.72 + if (typeof value === "undefined" || tokens[0].value === value) {
1.73 + last_token = tokens.shift();
1.74 + if (type === ID) last_token.value = last_token.value.replace(/^_/, "");
1.75 + return last_token;
1.76 + }
1.77 + };
1.78 +
1.79 + var ws = function () {
1.80 + if (!tokens.length) return;
1.81 + if (tokens[0].type === "whitespace") {
1.82 + var t = tokens.shift();
1.83 + t.value.replace(/\n/g, function (m) { line++; return m; });
1.84 + return t;
1.85 + }
1.86 + };
1.87 +
1.88 + var all_ws = function () {
1.89 + var t = { type: "whitespace", value: "" };
1.90 + while (true) {
1.91 + var w = ws();
1.92 + if (!w) break;
1.93 + t.value += w.value;
1.94 + }
1.95 + if (t.value.length > 0) return t;
1.96 + };
1.97 +
1.98 + var integer_type = function () {
1.99 + var ret = "";
1.100 + all_ws();
1.101 + if (consume(ID, "unsigned")) ret = "unsigned ";
1.102 + all_ws();
1.103 + if (consume(ID, "short")) return ret + "short";
1.104 + if (consume(ID, "long")) {
1.105 + ret += "long";
1.106 + all_ws();
1.107 + if (consume(ID, "long")) return ret + " long";
1.108 + return ret;
1.109 + }
1.110 + if (ret) error("Failed to parse integer type");
1.111 + };
1.112 +
1.113 + var float_type = function () {
1.114 + var ret = "";
1.115 + all_ws();
1.116 + if (consume(ID, "unrestricted")) ret = "unrestricted ";
1.117 + all_ws();
1.118 + if (consume(ID, "float")) return ret + "float";
1.119 + if (consume(ID, "double")) return ret + "double";
1.120 + if (ret) error("Failed to parse float type");
1.121 + };
1.122 +
1.123 + var primitive_type = function () {
1.124 + var num_type = integer_type() || float_type();
1.125 + if (num_type) return num_type;
1.126 + all_ws();
1.127 + if (consume(ID, "boolean")) return "boolean";
1.128 + if (consume(ID, "byte")) return "byte";
1.129 + if (consume(ID, "octet")) return "octet";
1.130 + };
1.131 +
1.132 + var const_value = function () {
1.133 + if (consume(ID, "true")) return { type: "boolean", value: true };
1.134 + if (consume(ID, "false")) return { type: "boolean", value: false };
1.135 + if (consume(ID, "null")) return { type: "null" };
1.136 + if (consume(ID, "Infinity")) return { type: "Infinity", negative: false };
1.137 + if (consume(ID, "NaN")) return { type: "NaN" };
1.138 + var ret = consume(FLOAT) || consume(INT);
1.139 + if (ret) return { type: "number", value: 1 * ret.value };
1.140 + var tok = consume(OTHER, "-");
1.141 + if (tok) {
1.142 + if (consume(ID, "Infinity")) return { type: "Infinity", negative: true };
1.143 + else tokens.unshift(tok);
1.144 + }
1.145 + };
1.146 +
1.147 + var type_suffix = function (obj) {
1.148 + while (true) {
1.149 + all_ws();
1.150 + if (consume(OTHER, "?")) {
1.151 + if (obj.nullable) error("Can't nullable more than once");
1.152 + obj.nullable = true;
1.153 + }
1.154 + else if (consume(OTHER, "[")) {
1.155 + all_ws();
1.156 + consume(OTHER, "]") || error("Unterminated array type");
1.157 + if (!obj.array) obj.array = 1;
1.158 + else obj.array++;
1.159 + }
1.160 + else return;
1.161 + }
1.162 + };
1.163 +
1.164 + var single_type = function () {
1.165 + var prim = primitive_type()
1.166 + , ret = { sequence: false, nullable: false, array: false, union: false }
1.167 + ;
1.168 + if (prim) {
1.169 + ret.idlType = prim;
1.170 + }
1.171 + else if (consume(ID, "sequence")) {
1.172 + all_ws();
1.173 + if (!consume(OTHER, "<")) {
1.174 + ret.idlType = "sequence";
1.175 + }
1.176 + else {
1.177 + ret.sequence = true;
1.178 + ret.idlType = type() || error("Error parsing sequence type");
1.179 + all_ws();
1.180 + if (!consume(OTHER, ">")) error("Unterminated sequence");
1.181 + all_ws();
1.182 + if (consume(OTHER, "?")) ret.nullable = true;
1.183 + return ret;
1.184 + }
1.185 + }
1.186 + else {
1.187 + var name = consume(ID);
1.188 + if (!name) return;
1.189 + ret.idlType = name.value;
1.190 + }
1.191 + type_suffix(ret);
1.192 + if (ret.nullable && ret.idlType === "any") error("Type any cannot be made nullable");
1.193 + return ret;
1.194 + };
1.195 +
1.196 + var union_type = function () {
1.197 + all_ws();
1.198 + if (!consume(OTHER, "(")) return;
1.199 + var ret = { sequence: false, nullable: false, array: false, union: true, idlType: [] };
1.200 + var fst = type() || error("Union type with no content");
1.201 + ret.idlType.push(fst);
1.202 + while (true) {
1.203 + all_ws();
1.204 + if (!consume(ID, "or")) break;
1.205 + var typ = type() || error("No type after 'or' in union type");
1.206 + ret.idlType.push(typ);
1.207 + }
1.208 + if (!consume(OTHER, ")")) error("Unterminated union type");
1.209 + type_suffix(ret);
1.210 + return ret;
1.211 + };
1.212 +
1.213 + var type = function () {
1.214 + return single_type() || union_type();
1.215 + };
1.216 +
1.217 + var argument = function () {
1.218 + var ret = { optional: false, variadic: false };
1.219 + ret.extAttrs = extended_attrs();
1.220 + all_ws();
1.221 + if (consume(ID, "optional")) {
1.222 + ret.optional = true;
1.223 + all_ws();
1.224 + }
1.225 + ret.idlType = type();
1.226 + if (!ret.idlType) return;
1.227 + if (!ret.optional) {
1.228 + all_ws();
1.229 + if (tokens.length >= 3 &&
1.230 + tokens[0].type === "other" && tokens[0].value === "." &&
1.231 + tokens[1].type === "other" && tokens[1].value === "." &&
1.232 + tokens[2].type === "other" && tokens[2].value === "."
1.233 + ) {
1.234 + tokens.shift();
1.235 + tokens.shift();
1.236 + tokens.shift();
1.237 + ret.variadic = true;
1.238 + }
1.239 + }
1.240 + all_ws();
1.241 + var name = consume(ID) || error("No name in argument");
1.242 + ret.name = name.value;
1.243 + if (ret.optional) {
1.244 + all_ws();
1.245 + ret["default"] = default_();
1.246 + }
1.247 + return ret;
1.248 + };
1.249 +
1.250 + var argument_list = function () {
1.251 + var arg = argument(), ret = [];
1.252 + if (!arg) return ret;
1.253 + ret.push(arg);
1.254 + while (true) {
1.255 + all_ws();
1.256 + if (!consume(OTHER, ",")) return ret;
1.257 + all_ws();
1.258 + var nxt = argument() || error("Trailing comma in arguments list");
1.259 + ret.push(nxt);
1.260 + }
1.261 + };
1.262 +
1.263 + var simple_extended_attr = function () {
1.264 + all_ws();
1.265 + var name = consume(ID);
1.266 + if (!name) return;
1.267 + var ret = {
1.268 + name: name.value
1.269 + , "arguments": null
1.270 + };
1.271 + all_ws();
1.272 + var eq = consume(OTHER, "=");
1.273 + if (eq) {
1.274 + all_ws();
1.275 + ret.rhs = consume(ID);
1.276 + if (!ret.rhs) return error("No right hand side to extended attribute assignment");
1.277 + }
1.278 + all_ws();
1.279 + if (consume(OTHER, "(")) {
1.280 + ret["arguments"] = argument_list();
1.281 + all_ws();
1.282 + consume(OTHER, ")") || error("Unclosed argument in extended attribute");
1.283 + }
1.284 + return ret;
1.285 + };
1.286 +
1.287 + // Note: we parse something simpler than the official syntax. It's all that ever
1.288 + // seems to be used
1.289 + var extended_attrs = function () {
1.290 + var eas = [];
1.291 + all_ws();
1.292 + if (!consume(OTHER, "[")) return eas;
1.293 + eas[0] = simple_extended_attr() || error("Extended attribute with not content");
1.294 + all_ws();
1.295 + while (consume(OTHER, ",")) {
1.296 + all_ws();
1.297 + eas.push(simple_extended_attr() || error("Trailing comma in extended attribute"));
1.298 + all_ws();
1.299 + }
1.300 + consume(OTHER, "]") || error("No end of extended attribute");
1.301 + return eas;
1.302 + };
1.303 +
1.304 + var default_ = function () {
1.305 + all_ws();
1.306 + if (consume(OTHER, "=")) {
1.307 + all_ws();
1.308 + var def = const_value();
1.309 + if (def) {
1.310 + return def;
1.311 + }
1.312 + else {
1.313 + var str = consume(STR) || error("No value for default");
1.314 + str.value = str.value.replace(/^"/, "").replace(/"$/, "");
1.315 + return str;
1.316 + }
1.317 + }
1.318 + };
1.319 +
1.320 + var const_ = function () {
1.321 + all_ws();
1.322 + if (!consume(ID, "const")) return;
1.323 + var ret = { type: "const", nullable: false };
1.324 + all_ws();
1.325 + var typ = primitive_type();
1.326 + if (!typ) {
1.327 + typ = consume(ID) || error("No type for const");
1.328 + typ = typ.value;
1.329 + }
1.330 + ret.idlType = typ;
1.331 + all_ws();
1.332 + if (consume(OTHER, "?")) {
1.333 + ret.nullable = true;
1.334 + all_ws();
1.335 + }
1.336 + var name = consume(ID) || error("No name for const");
1.337 + ret.name = name.value;
1.338 + all_ws();
1.339 + consume(OTHER, "=") || error("No value assignment for const");
1.340 + all_ws();
1.341 + var cnt = const_value();
1.342 + if (cnt) ret.value = cnt;
1.343 + else error("No value for const");
1.344 + all_ws();
1.345 + consume(OTHER, ";") || error("Unterminated const");
1.346 + return ret;
1.347 + };
1.348 +
1.349 + var inheritance = function () {
1.350 + all_ws();
1.351 + if (consume(OTHER, ":")) {
1.352 + all_ws();
1.353 + var inh = consume(ID) || error ("No type in inheritance");
1.354 + return inh.value;
1.355 + }
1.356 + };
1.357 +
1.358 + var operation_rest = function (ret) {
1.359 + all_ws();
1.360 + if (!ret) ret = {};
1.361 + var name = consume(ID);
1.362 + ret.name = name ? name.value : null;
1.363 + all_ws();
1.364 + consume(OTHER, "(") || error("Invalid operation");
1.365 + ret["arguments"] = argument_list();
1.366 + all_ws();
1.367 + consume(OTHER, ")") || error("Unterminated operation");
1.368 + all_ws();
1.369 + consume(OTHER, ";") || error("Unterminated operation");
1.370 + return ret;
1.371 + };
1.372 +
1.373 + var callback = function () {
1.374 + all_ws();
1.375 + var ret;
1.376 + if (!consume(ID, "callback")) return;
1.377 + all_ws();
1.378 + var tok = consume(ID, "interface");
1.379 + if (tok) {
1.380 + tokens.unshift(tok);
1.381 + ret = interface_();
1.382 + ret.type = "callback interface";
1.383 + return ret;
1.384 + }
1.385 + var name = consume(ID) || error("No name for callback");
1.386 + ret = { type: "callback", name: name.value };
1.387 + all_ws();
1.388 + consume(OTHER, "=") || error("No assignment in callback");
1.389 + all_ws();
1.390 + ret.idlType = return_type();
1.391 + all_ws();
1.392 + consume(OTHER, "(") || error("No arguments in callback");
1.393 + ret["arguments"] = argument_list();
1.394 + all_ws();
1.395 + consume(OTHER, ")") || error("Unterminated callback");
1.396 + all_ws();
1.397 + consume(OTHER, ";") || error("Unterminated callback");
1.398 + return ret;
1.399 + };
1.400 +
1.401 + var attribute = function () {
1.402 + all_ws();
1.403 + var grabbed = []
1.404 + , ret = {
1.405 + type: "attribute"
1.406 + , "static": false
1.407 + , stringifier: false
1.408 + , inherit: false
1.409 + , readonly: false
1.410 + };
1.411 + if (consume(ID, "static")) {
1.412 + ret["static"] = true;
1.413 + grabbed.push(last_token);
1.414 + }
1.415 + else if (consume(ID, "stringifier")) {
1.416 + ret.stringifier = true;
1.417 + grabbed.push(last_token);
1.418 + }
1.419 + var w = all_ws();
1.420 + if (w) grabbed.push(w);
1.421 + if (consume(ID, "inherit")) {
1.422 + if (ret["static"] || ret.stringifier) error("Cannot have a static or stringifier inherit");
1.423 + ret.inherit = true;
1.424 + grabbed.push(last_token);
1.425 + var w = all_ws();
1.426 + if (w) grabbed.push(w);
1.427 + }
1.428 + if (consume(ID, "readonly")) {
1.429 + ret.readonly = true;
1.430 + grabbed.push(last_token);
1.431 + var w = all_ws();
1.432 + if (w) grabbed.push(w);
1.433 + }
1.434 + if (!consume(ID, "attribute")) {
1.435 + tokens = grabbed.concat(tokens);
1.436 + return;
1.437 + }
1.438 + all_ws();
1.439 + ret.idlType = type() || error("No type in attribute");
1.440 + if (ret.idlType.sequence) error("Attributes cannot accept sequence types");
1.441 + all_ws();
1.442 + var name = consume(ID) || error("No name in attribute");
1.443 + ret.name = name.value;
1.444 + all_ws();
1.445 + consume(OTHER, ";") || error("Unterminated attribute");
1.446 + return ret;
1.447 + };
1.448 +
1.449 + var return_type = function () {
1.450 + var typ = type();
1.451 + if (!typ) {
1.452 + if (consume(ID, "void")) {
1.453 + return "void";
1.454 + }
1.455 + else error("No return type");
1.456 + }
1.457 + return typ;
1.458 + };
1.459 +
1.460 + var operation = function () {
1.461 + all_ws();
1.462 + var ret = {
1.463 + type: "operation"
1.464 + , getter: false
1.465 + , setter: false
1.466 + , creator: false
1.467 + , deleter: false
1.468 + , legacycaller: false
1.469 + , "static": false
1.470 + , stringifier: false
1.471 + };
1.472 + while (true) {
1.473 + all_ws();
1.474 + if (consume(ID, "getter")) ret.getter = true;
1.475 + else if (consume(ID, "setter")) ret.setter = true;
1.476 + else if (consume(ID, "creator")) ret.creator = true;
1.477 + else if (consume(ID, "deleter")) ret.deleter = true;
1.478 + else if (consume(ID, "legacycaller")) ret.legacycaller = true;
1.479 + else break;
1.480 + }
1.481 + if (ret.getter || ret.setter || ret.creator || ret.deleter || ret.legacycaller) {
1.482 + all_ws();
1.483 + ret.idlType = return_type();
1.484 + operation_rest(ret);
1.485 + return ret;
1.486 + }
1.487 + if (consume(ID, "static")) {
1.488 + ret["static"] = true;
1.489 + ret.idlType = return_type();
1.490 + operation_rest(ret);
1.491 + return ret;
1.492 + }
1.493 + else if (consume(ID, "stringifier")) {
1.494 + ret.stringifier = true;
1.495 + all_ws();
1.496 + if (consume(OTHER, ";")) return ret;
1.497 + ret.idlType = return_type();
1.498 + operation_rest(ret);
1.499 + return ret;
1.500 + }
1.501 + ret.idlType = return_type();
1.502 + all_ws();
1.503 + if (consume(ID, "iterator")) {
1.504 + all_ws();
1.505 + ret.type = "iterator";
1.506 + if (consume(ID, "object")) {
1.507 + ret.iteratorObject = "object";
1.508 + }
1.509 + else if (consume(OTHER, "=")) {
1.510 + all_ws();
1.511 + var name = consume(ID) || error("No right hand side in iterator");
1.512 + ret.iteratorObject = name.value;
1.513 + }
1.514 + all_ws();
1.515 + consume(OTHER, ";") || error("Unterminated iterator");
1.516 + return ret;
1.517 + }
1.518 + else {
1.519 + operation_rest(ret);
1.520 + return ret;
1.521 + }
1.522 + };
1.523 +
1.524 + var identifiers = function (arr) {
1.525 + while (true) {
1.526 + all_ws();
1.527 + if (consume(OTHER, ",")) {
1.528 + all_ws();
1.529 + var name = consume(ID) || error("Trailing comma in identifiers list");
1.530 + arr.push(name.value);
1.531 + }
1.532 + else break;
1.533 + }
1.534 + };
1.535 +
1.536 + var serialiser = function () {
1.537 + all_ws();
1.538 + if (!consume(ID, "serializer")) return;
1.539 + var ret = { type: "serializer" };
1.540 + all_ws();
1.541 + if (consume(OTHER, "=")) {
1.542 + all_ws();
1.543 + if (consume(OTHER, "{")) {
1.544 + ret.patternMap = true;
1.545 + all_ws();
1.546 + var id = consume(ID);
1.547 + if (id && id.value === "getter") {
1.548 + ret.names = ["getter"];
1.549 + }
1.550 + else if (id && id.value === "inherit") {
1.551 + ret.names = ["inherit"];
1.552 + identifiers(ret.names);
1.553 + }
1.554 + else if (id) {
1.555 + ret.names = [id.value];
1.556 + identifiers(ret.names);
1.557 + }
1.558 + else {
1.559 + ret.names = [];
1.560 + }
1.561 + all_ws();
1.562 + consume(OTHER, "}") || error("Unterminated serializer pattern map");
1.563 + }
1.564 + else if (consume(OTHER, "[")) {
1.565 + ret.patternList = true;
1.566 + all_ws();
1.567 + var id = consume(ID);
1.568 + if (id && id.value === "getter") {
1.569 + ret.names = ["getter"];
1.570 + }
1.571 + else if (id) {
1.572 + ret.names = [id.value];
1.573 + identifiers(ret.names);
1.574 + }
1.575 + else {
1.576 + ret.names = [];
1.577 + }
1.578 + all_ws();
1.579 + consume(OTHER, "]") || error("Unterminated serializer pattern list");
1.580 + }
1.581 + else {
1.582 + var name = consume(ID) || error("Invalid serializer");
1.583 + ret.name = name.value;
1.584 + }
1.585 + all_ws();
1.586 + consume(OTHER, ";") || error("Unterminated serializer");
1.587 + return ret;
1.588 + }
1.589 + else if (consume(OTHER, ";")) {
1.590 + // noop, just parsing
1.591 + }
1.592 + else {
1.593 + ret.idlType = return_type();
1.594 + all_ws();
1.595 + ret.operation = operation_rest();
1.596 + }
1.597 + return ret;
1.598 + };
1.599 +
1.600 + var interface_ = function (isPartial) {
1.601 + all_ws();
1.602 + if (!consume(ID, "interface")) return;
1.603 + all_ws();
1.604 + var name = consume(ID) || error("No name for interface");
1.605 + var ret = {
1.606 + type: "interface"
1.607 + , name: name.value
1.608 + , partial: false
1.609 + , members: []
1.610 + };
1.611 + if (!isPartial) ret.inheritance = inheritance() || null;
1.612 + all_ws();
1.613 + consume(OTHER, "{") || error("Bodyless interface");
1.614 + while (true) {
1.615 + all_ws();
1.616 + if (consume(OTHER, "}")) {
1.617 + all_ws();
1.618 + consume(OTHER, ";") || error("Missing semicolon after interface");
1.619 + return ret;
1.620 + }
1.621 + var ea = extended_attrs();
1.622 + all_ws();
1.623 + var cnt = const_();
1.624 + if (cnt) {
1.625 + cnt.extAttrs = ea;
1.626 + ret.members.push(cnt);
1.627 + continue;
1.628 + }
1.629 + var mem = serialiser() || attribute() || operation() || error("Unknown member");
1.630 + mem.extAttrs = ea;
1.631 + ret.members.push(mem);
1.632 + }
1.633 + };
1.634 +
1.635 + var partial = function () {
1.636 + all_ws();
1.637 + if (!consume(ID, "partial")) return;
1.638 + var thing = dictionary(true) || interface_(true) || error("Partial doesn't apply to anything");
1.639 + thing.partial = true;
1.640 + return thing;
1.641 + };
1.642 +
1.643 + var dictionary = function (isPartial) {
1.644 + all_ws();
1.645 + if (!consume(ID, "dictionary")) return;
1.646 + all_ws();
1.647 + var name = consume(ID) || error("No name for dictionary");
1.648 + var ret = {
1.649 + type: "dictionary"
1.650 + , name: name.value
1.651 + , partial: false
1.652 + , members: []
1.653 + };
1.654 + if (!isPartial) ret.inheritance = inheritance() || null;
1.655 + all_ws();
1.656 + consume(OTHER, "{") || error("Bodyless dictionary");
1.657 + while (true) {
1.658 + all_ws();
1.659 + if (consume(OTHER, "}")) {
1.660 + all_ws();
1.661 + consume(OTHER, ";") || error("Missing semicolon after dictionary");
1.662 + return ret;
1.663 + }
1.664 + var ea = extended_attrs();
1.665 + all_ws();
1.666 + var typ = type() || error("No type for dictionary member");
1.667 + all_ws();
1.668 + var name = consume(ID) || error("No name for dictionary member");
1.669 + ret.members.push({
1.670 + type: "field"
1.671 + , name: name.value
1.672 + , idlType: typ
1.673 + , extAttrs: ea
1.674 + , "default": default_()
1.675 + });
1.676 + all_ws();
1.677 + consume(OTHER, ";") || error("Unterminated dictionary member");
1.678 + }
1.679 + };
1.680 +
1.681 + var exception = function () {
1.682 + all_ws();
1.683 + if (!consume(ID, "exception")) return;
1.684 + all_ws();
1.685 + var name = consume(ID) || error("No name for exception");
1.686 + var ret = {
1.687 + type: "exception"
1.688 + , name: name.value
1.689 + , members: []
1.690 + };
1.691 + ret.inheritance = inheritance() || null;
1.692 + all_ws();
1.693 + consume(OTHER, "{") || error("Bodyless exception");
1.694 + while (true) {
1.695 + all_ws();
1.696 + if (consume(OTHER, "}")) {
1.697 + all_ws();
1.698 + consume(OTHER, ";") || error("Missing semicolon after exception");
1.699 + return ret;
1.700 + }
1.701 + var ea = extended_attrs();
1.702 + all_ws();
1.703 + var cnt = const_();
1.704 + if (cnt) {
1.705 + cnt.extAttrs = ea;
1.706 + ret.members.push(cnt);
1.707 + }
1.708 + else {
1.709 + var typ = type();
1.710 + all_ws();
1.711 + var name = consume(ID);
1.712 + all_ws();
1.713 + if (!typ || !name || !consume(OTHER, ";")) error("Unknown member in exception body");
1.714 + ret.members.push({
1.715 + type: "field"
1.716 + , name: name.value
1.717 + , idlType: typ
1.718 + , extAttrs: ea
1.719 + });
1.720 + }
1.721 + }
1.722 + };
1.723 +
1.724 + var enum_ = function () {
1.725 + all_ws();
1.726 + if (!consume(ID, "enum")) return;
1.727 + all_ws();
1.728 + var name = consume(ID) || error("No name for enum");
1.729 + var ret = {
1.730 + type: "enum"
1.731 + , name: name.value
1.732 + , values: []
1.733 + };
1.734 + all_ws();
1.735 + consume(OTHER, "{") || error("No curly for enum");
1.736 + var saw_comma = false;
1.737 + while (true) {
1.738 + all_ws();
1.739 + if (consume(OTHER, "}")) {
1.740 + all_ws();
1.741 + if (saw_comma) error("Trailing comma in enum");
1.742 + consume(OTHER, ";") || error("No semicolon after enum");
1.743 + return ret;
1.744 + }
1.745 + var val = consume(STR) || error("Unexpected value in enum");
1.746 + ret.values.push(val.value.replace(/"/g, ""));
1.747 + all_ws();
1.748 + if (consume(OTHER, ",")) {
1.749 + all_ws();
1.750 + saw_comma = true;
1.751 + }
1.752 + else {
1.753 + saw_comma = false;
1.754 + }
1.755 + }
1.756 + };
1.757 +
1.758 + var typedef = function () {
1.759 + all_ws();
1.760 + if (!consume(ID, "typedef")) return;
1.761 + var ret = {
1.762 + type: "typedef"
1.763 + };
1.764 + all_ws();
1.765 + ret.typeExtAttrs = extended_attrs();
1.766 + all_ws();
1.767 + ret.idlType = type() || error("No type in typedef");
1.768 + all_ws();
1.769 + var name = consume(ID) || error("No name in typedef");
1.770 + ret.name = name.value;
1.771 + all_ws();
1.772 + consume(OTHER, ";") || error("Unterminated typedef");
1.773 + return ret;
1.774 + };
1.775 +
1.776 + var implements_ = function () {
1.777 + all_ws();
1.778 + var target = consume(ID);
1.779 + if (!target) return;
1.780 + var w = all_ws();
1.781 + if (consume(ID, "implements")) {
1.782 + var ret = {
1.783 + type: "implements"
1.784 + , target: target.value
1.785 + };
1.786 + all_ws();
1.787 + var imp = consume(ID) || error("Incomplete implements statement");
1.788 + ret["implements"] = imp.value;
1.789 + all_ws();
1.790 + consume(OTHER, ";") || error("No terminating ; for implements statement");
1.791 + return ret;
1.792 + }
1.793 + else {
1.794 + // rollback
1.795 + tokens.unshift(w);
1.796 + tokens.unshift(target);
1.797 + }
1.798 + };
1.799 +
1.800 + var definition = function () {
1.801 + return callback() ||
1.802 + interface_() ||
1.803 + partial() ||
1.804 + dictionary() ||
1.805 + exception() ||
1.806 + enum_() ||
1.807 + typedef() ||
1.808 + implements_()
1.809 + ;
1.810 + };
1.811 +
1.812 + var definitions = function () {
1.813 + if (!tokens.length) return [];
1.814 + var defs = [];
1.815 + while (true) {
1.816 + var ea = extended_attrs()
1.817 + , def = definition();
1.818 + if (!def) {
1.819 + if (ea.length) error("Stray extended attributes");
1.820 + break;
1.821 + }
1.822 + def.extAttrs = ea;
1.823 + defs.push(def);
1.824 + }
1.825 + return defs;
1.826 + };
1.827 + var res = definitions();
1.828 + if (tokens.length) error("Unrecognised tokens");
1.829 + return res;
1.830 + };
1.831 +
1.832 + var obj = {
1.833 + parse: function (str) {
1.834 + var tokens = tokenise(str);
1.835 + return parse(tokens);
1.836 + }
1.837 + };
1.838 + if (typeof module !== "undefined" && module.exports) {
1.839 + module.exports = obj;
1.840 + }
1.841 + else {
1.842 + window.WebIDL2 = obj;
1.843 + }
1.844 +}());
