--- /dev/null
+function DEFNODE(type, props, methods, base) {
+ if (arguments.length < 4) base = AST_Node;
+ if (!props) props = [];
+ else props = props.split(/\s+/);
+ if (base && base.PROPS)
+ props = props.concat(base.PROPS);
+ var code = "return function AST_" + type + "(props){ if (props) { ";
+ for (var i = props.length; --i >= 0;) {
+ code += "this." + props[i] + " = props." + props[i] + ";";
+ }
+ code += " } }";
+ var ctor = new Function(code)();
+ if (base) {
+ ctor.prototype = new base;
+ }
+ ctor.prototype.CTOR = ctor;
+ ctor.PROPS = props || null;
+ if (type) {
+ ctor.prototype.TYPE = ctor.TYPE = type;
+ }
+ if (methods) for (var i in methods) if (HOP(methods, i)) {
+ ctor.prototype[i] = methods[i];
+ }
+ return ctor;
+};
+
+var AST_Token = DEFNODE("Token", "type value line col pos endpos nlb", {
+
+}, null);
+
+var AST_Node = DEFNODE("Node", "start end", {
+
+}, null);
+
+var AST_Directive = DEFNODE("Directive", "value", {
+
+});
+
+var AST_Debugger = DEFNODE("Debugger", null, {
+
+});
+
+var AST_Parenthesized = DEFNODE("Parenthesized", "expression", {
+ documentation: "Represents an expression which is always parenthesized. Used for the \
+conditions in IF/WHILE."
+});
+
+var AST_Bracketed = DEFNODE("Bracketed", "body", {
+ documentation: "Represents a block of statements that are always included in brackets. \
+Used for bodies of FUNCTION/TRY/CATCH/THROW/SWITCH."
+});
+
+/* -----[ loops ]----- */
+
+var AST_LabeledStatement = DEFNODE("LabeledStatement", "label body", {
+
+});
+
+var AST_Statement = DEFNODE("Statement", null, {
+
+}, AST_LabeledStatement);
+
+var AST_Do = DEFNODE("Do", "condition", {
+
+}, AST_LabeledStatement);
+
+var AST_While = DEFNODE("While", "condition", {
+
+}, AST_LabeledStatement);
+
+var AST_For = DEFNODE("For", "init condition step", {
+
+}, AST_LabeledStatement);
+
+var AST_ForIn = DEFNODE("ForIn", "init name object", {
+
+}, AST_LabeledStatement);
+
+var AST_With = DEFNODE("With", "expression body", {
+
+});
+
+var AST_LoopControl = DEFNODE("LoopControl", "label", {
+
+});
+var AST_Break = DEFNODE("Break", null, {
+
+}, AST_LoopControl);
+var AST_Continue = DEFNODE("Continue", null, {
+
+}, AST_LoopControl);
+
+/* -----[ functions ]----- */
+
+var AST_Scope = DEFNODE("Scope", "identifiers body", {
+
+});
+
+var AST_Toplevel = DEFNODE("Toplevel", null, {
+
+}, AST_Scope);
+
+var AST_Lambda = DEFNODE("Lambda", "name argnames", {
+
+}, AST_Scope);
+var AST_Function = DEFNODE("Function", null, {
+
+}, AST_Lambda);
+var AST_Defun = DEFNODE("Defun", null, {
+
+}, AST_Function);
+
+/* -----[ JUMPS ]----- */
+
+var AST_Jump = DEFNODE("Jump", "value");
+
+var AST_Return = DEFNODE("Return", null, {
+
+}, AST_Jump);
+
+var AST_Throw = DEFNODE("Throw", null, {
+
+}, AST_Jump);
+
+/* -----[ IF ]----- */
+
+var AST_If = DEFNODE("If", "condition consequent alternative", {
+
+});
+
+/* -----[ SWITCH ]----- */
+
+var AST_Switch = DEFNODE("Switch", "expression", {
+
+}, AST_LabeledStatement);
+
+var AST_SwitchBlock = DEFNODE("SwitchBlock", null, {
+
+}, AST_Bracketed);
+
+var AST_SwitchBranch = DEFNODE("SwitchBranch", "body", {
+
+});
+
+var AST_Default = DEFNODE("Default", null, {
+
+}, AST_SwitchBranch);
+
+var AST_Case = DEFNODE("Case", "expression", {
+
+}, AST_SwitchBranch);
+
+/* -----[ EXCEPTIONS ]----- */
+
+var AST_Try = DEFNODE("Try", "btry bcatch bfinally", {
+
+});
+
+var AST_Catch = DEFNODE("Catch", "argname body", {
+
+});
+
+var AST_Finally = DEFNODE("Finally", null, {
+
+}, AST_Bracketed);
+
+/* -----[ VAR/CONST ]----- */
+
+var AST_Definitions = DEFNODE("Definitions", "definitions", {
+
+});
+
+var AST_Var = DEFNODE("Var", null, {
+
+}, AST_Definitions);
+
+var AST_Const = DEFNODE("Const", null, {
+
+}, AST_Definitions);
+
+var AST_VarDef = DEFNODE("VarDef", "name value", {
+
+});
+
+/* -----[ OTHER ]----- */
+
+var AST_Call = DEFNODE("Call", "expression args", {
+
+});
+
+var AST_New = DEFNODE("New", null, {
+
+}, AST_Call);
+
+var AST_Seq = DEFNODE("Seq", "first second", {
+
+});
+
+var AST_PropAccess = DEFNODE("PropAccess", "expression property", {
+
+});
+
+var AST_Dot = DEFNODE("Dot", null, {
+
+}, AST_PropAccess);
+
+var AST_Sub = DEFNODE("Sub", null, {
+
+}, AST_PropAccess);
+
+var AST_Unary = DEFNODE("Unary", "operator expression", {
+
+});
+
+var AST_UnaryPrefix = DEFNODE("UnaryPrefix", null, {
+
+}, AST_Unary);
+
+var AST_UnaryPostfix = DEFNODE("UnaryPostfix", null, {
+
+}, AST_Unary);
+
+var AST_Binary = DEFNODE("Binary", "left operator right", {
+
+});
+
+var AST_Conditional = DEFNODE("Conditional", "condition consequent alternative", {
+
+});
+
+var AST_Assign = DEFNODE("Assign", "left operator right", {
+
+});
+
+/* -----[ LITERALS ]----- */
+
+var AST_RegExp = DEFNODE("Regexp", "pattern mods", {
+
+});
+
+var AST_Array = DEFNODE("Array", "elements", {
+
+});
+
+var AST_Object = DEFNODE("Object", "properties", {
+
+});
+
+var AST_ObjectProperty = DEFNODE("ObjectProperty");
+
+var AST_ObjectKeyVal = DEFNODE("ObjectKeyval", "key value", {
+
+}, AST_ObjectProperty);
+
+var AST_ObjectSetter = DEFNODE("ObjectSetter", "name func", {
+
+}, AST_ObjectProperty);
+
+var AST_ObjectGetter = DEFNODE("ObjectGetter", "name func", {
+
+}, AST_ObjectProperty);
+
+var AST_Symbol = DEFNODE("Symbol", "name", {
+
+});
+
+var AST_String = DEFNODE("String", "value", {
+
+});
+
+var AST_Number = DEFNODE("Number", "value", {
+
+});
+
+var AST_Boolean = DEFNODE("Boolean", "value", {
+
+});
+
+var AST_Atom = DEFNODE("Atom", null, {
+
+});
+
+var AST_Null = DEFNODE("Null", null, {
+
+}, AST_Atom);
+
+var AST_Undefined = DEFNODE("Undefined", null, {
+
+}, AST_Atom);
+
+var AST_False = DEFNODE("False", null, {
+
+}, AST_Atom);
+
+var AST_True = DEFNODE("True", null, {
+
+}, AST_Atom);
--- /dev/null
+var KEYWORDS = array_to_hash([
+ "break",
+ "case",
+ "catch",
+ "const",
+ "continue",
+ "debugger",
+ "default",
+ "delete",
+ "do",
+ "else",
+ "finally",
+ "for",
+ "function",
+ "if",
+ "in",
+ "instanceof",
+ "new",
+ "return",
+ "switch",
+ "throw",
+ "try",
+ "typeof",
+ "var",
+ "void",
+ "while",
+ "with"
+]);
+
+var RESERVED_WORDS = array_to_hash([
+ "abstract",
+ "boolean",
+ "byte",
+ "char",
+ "class",
+ "double",
+ "enum",
+ "export",
+ "extends",
+ "final",
+ "float",
+ "goto",
+ "implements",
+ "import",
+ "int",
+ "interface",
+ "long",
+ "native",
+ "package",
+ "private",
+ "protected",
+ "public",
+ "short",
+ "static",
+ "super",
+ "synchronized",
+ "throws",
+ "transient",
+ "volatile"
+]);
+
+var KEYWORDS_BEFORE_EXPRESSION = array_to_hash([
+ "return",
+ "new",
+ "delete",
+ "throw",
+ "else",
+ "case"
+]);
+
+var KEYWORDS_ATOM = array_to_hash([
+ "false",
+ "null",
+ "true"
+]);
+
+var OPERATOR_CHARS = array_to_hash(characters("+-*&%=<>!?|~^"));
+
+var RE_HEX_NUMBER = /^0x[0-9a-f]+$/i;
+var RE_OCT_NUMBER = /^0[0-7]+$/;
+var RE_DEC_NUMBER = /^\d*\.?\d*(?:e[+-]?\d*(?:\d\.?|\.?\d)\d*)?$/i;
+
+var OPERATORS = array_to_hash([
+ "in",
+ "instanceof",
+ "typeof",
+ "new",
+ "void",
+ "delete",
+ "++",
+ "--",
+ "+",
+ "-",
+ "!",
+ "~",
+ "&",
+ "|",
+ "^",
+ "*",
+ "/",
+ "%",
+ ">>",
+ "<<",
+ ">>>",
+ "<",
+ ">",
+ "<=",
+ ">=",
+ "==",
+ "===",
+ "!=",
+ "!==",
+ "?",
+ "=",
+ "+=",
+ "-=",
+ "/=",
+ "*=",
+ "%=",
+ ">>=",
+ "<<=",
+ ">>>=",
+ "|=",
+ "^=",
+ "&=",
+ "&&",
+ "||"
+]);
+
+var WHITESPACE_CHARS = array_to_hash(characters(" \u00a0\n\r\t\f\u000b\u200b\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000"));
+
+var PUNC_BEFORE_EXPRESSION = array_to_hash(characters("[{(,.;:"));
+
+var PUNC_CHARS = array_to_hash(characters("[]{}(),;:"));
+
+var REGEXP_MODIFIERS = array_to_hash(characters("gmsiy"));
+
+/* -----[ Tokenizer ]----- */
+
+// regexps adapted from http://xregexp.com/plugins/#unicode
+var UNICODE = {
+ letter: new RegExp("[\\u0041-\\u005A\\u0061-\\u007A\\u00AA\\u00B5\\u00BA\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02C1\\u02C6-\\u02D1\\u02E0-\\u02E4\\u02EC\\u02EE\\u0370-\\u0374\\u0376\\u0377\\u037A-\\u037D\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\\u03A3-\\u03F5\\u03F7-\\u0481\\u048A-\\u0523\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05D0-\\u05EA\\u05F0-\\u05F2\\u0621-\\u064A\\u066E\\u066F\\u0671-\\u06D3\\u06D5\\u06E5\\u06E6\\u06EE\\u06EF\\u06FA-\\u06FC\\u06FF\\u0710\\u0712-\\u072F\\u074D-\\u07A5\\u07B1\\u07CA-\\u07EA\\u07F4\\u07F5\\u07FA\\u0904-\\u0939\\u093D\\u0950\\u0958-\\u0961\\u0971\\u0972\\u097B-\\u097F\\u0985-\\u098C\\u098F\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\\u09CE\\u09DC\\u09DD\\u09DF-\\u09E1\\u09F0\\u09F1\\u0A05-\\u0A0A\\u0A0F\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32\\u0A33\\u0A35\\u0A36\\u0A38\\u0A39\\u0A59-\\u0A5C\\u0A5E\\u0A72-\\u0A74\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\\u0AB2\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0AD0\\u0AE0\\u0AE1\\u0B05-\\u0B0C\\u0B0F\\u0B10\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B5C\\u0B5D\\u0B5F-\\u0B61\\u0B71\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\\u0B99\\u0B9A\\u0B9C\\u0B9E\\u0B9F\\u0BA3\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\\u0BD0\\u0C05-\\u0C0C\\u0C0E-\\u0C10\\u0C12-\\u0C28\\u0C2A-\\u0C33\\u0C35-\\u0C39\\u0C3D\\u0C58\\u0C59\\u0C60\\u0C61\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CDE\\u0CE0\\u0CE1\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D28\\u0D2A-\\u0D39\\u0D3D\\u0D60\\u0D61\\u0D7A-\\u0D7F\\u0D85-\\u0D96\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0E01-\\u0E30\\u0E32\\u0E33\\u0E40-\\u0E46\\u0E81\\u0E82\\u0E84\\u0E87\\u0E88\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\\u0EAA\\u0EAB\\u0EAD-\\u0EB0\\u0EB2\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\\u0EDC\\u0EDD\\u0F00\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F88-\\u0F8B\\u1000-\\u102A\\u103F\\u1050-\\u1055\\u105A-\\u105D\\u1061\\u1065\\u1066\\u106E-\\u1070\\u1075-\\u1081\\u108E\\u10A0-\\u10C5\\u10D0-\\u10FA\\u10FC\\u1100-\\u1159\\u115F-\\u11A2\\u11A8-\\u11F9\\u1200-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166F-\\u1676\\u1681-\\u169A\\u16A0-\\u16EA\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17D7\\u17DC\\u1820-\\u1877\\u1880-\\u18A8\\u18AA\\u1900-\\u191C\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19A9\\u19C1-\\u19C7\\u1A00-\\u1A16\\u1B05-\\u1B33\\u1B45-\\u1B4B\\u1B83-\\u1BA0\\u1BAE\\u1BAF\\u1C00-\\u1C23\\u1C4D-\\u1C4F\\u1C5A-\\u1C7D\\u1D00-\\u1DBF\\u1E00-\\u1F15\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u2071\\u207F\\u2090-\\u2094\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2139\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u2183\\u2184\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2C6F\\u2C71-\\u2C7D\\u2C80-\\u2CE4\\u2D00-\\u2D25\\u2D30-\\u2D65\\u2D6F\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u2E2F\\u3005\\u3006\\u3031-\\u3035\\u303B\\u303C\\u3041-\\u3096\\u309D-\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FF\\u3105-\\u312D\\u3131-\\u318E\\u31A0-\\u31B7\\u31F0-\\u31FF\\u3400\\u4DB5\\u4E00\\u9FC3\\uA000-\\uA48C\\uA500-\\uA60C\\uA610-\\uA61F\\uA62A\\uA62B\\uA640-\\uA65F\\uA662-\\uA66E\\uA67F-\\uA697\\uA717-\\uA71F\\uA722-\\uA788\\uA78B\\uA78C\\uA7FB-\\uA801\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA840-\\uA873\\uA882-\\uA8B3\\uA90A-\\uA925\\uA930-\\uA946\\uAA00-\\uAA28\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAC00\\uD7A3\\uF900-\\uFA2D\\uFA30-\\uFA6A\\uFA70-\\uFAD9\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB38-\\uFB3C\\uFB3E\\uFB40\\uFB41\\uFB43\\uFB44\\uFB46-\\uFBB1\\uFBD3-\\uFD3D\\uFD50-\\uFD8F\\uFD92-\\uFDC7\\uFDF0-\\uFDFB\\uFE70-\\uFE74\\uFE76-\\uFEFC\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC]"),
+ non_spacing_mark: new RegExp("[\\u0300-\\u036F\\u0483-\\u0487\\u0591-\\u05BD\\u05BF\\u05C1\\u05C2\\u05C4\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065E\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7\\u06E8\\u06EA-\\u06ED\\u0711\\u0730-\\u074A\\u07A6-\\u07B0\\u07EB-\\u07F3\\u0816-\\u0819\\u081B-\\u0823\\u0825-\\u0827\\u0829-\\u082D\\u0900-\\u0902\\u093C\\u0941-\\u0948\\u094D\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09BC\\u09C1-\\u09C4\\u09CD\\u09E2\\u09E3\\u0A01\\u0A02\\u0A3C\\u0A41\\u0A42\\u0A47\\u0A48\\u0A4B-\\u0A4D\\u0A51\\u0A70\\u0A71\\u0A75\\u0A81\\u0A82\\u0ABC\\u0AC1-\\u0AC5\\u0AC7\\u0AC8\\u0ACD\\u0AE2\\u0AE3\\u0B01\\u0B3C\\u0B3F\\u0B41-\\u0B44\\u0B4D\\u0B56\\u0B62\\u0B63\\u0B82\\u0BC0\\u0BCD\\u0C3E-\\u0C40\\u0C46-\\u0C48\\u0C4A-\\u0C4D\\u0C55\\u0C56\\u0C62\\u0C63\\u0CBC\\u0CBF\\u0CC6\\u0CCC\\u0CCD\\u0CE2\\u0CE3\\u0D41-\\u0D44\\u0D4D\\u0D62\\u0D63\\u0DCA\\u0DD2-\\u0DD4\\u0DD6\\u0E31\\u0E34-\\u0E3A\\u0E47-\\u0E4E\\u0EB1\\u0EB4-\\u0EB9\\u0EBB\\u0EBC\\u0EC8-\\u0ECD\\u0F18\\u0F19\\u0F35\\u0F37\\u0F39\\u0F71-\\u0F7E\\u0F80-\\u0F84\\u0F86\\u0F87\\u0F90-\\u0F97\\u0F99-\\u0FBC\\u0FC6\\u102D-\\u1030\\u1032-\\u1037\\u1039\\u103A\\u103D\\u103E\\u1058\\u1059\\u105E-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108D\\u109D\\u135F\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17B7-\\u17BD\\u17C6\\u17C9-\\u17D3\\u17DD\\u180B-\\u180D\\u18A9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193B\\u1A17\\u1A18\\u1A56\\u1A58-\\u1A5E\\u1A60\\u1A62\\u1A65-\\u1A6C\\u1A73-\\u1A7C\\u1A7F\\u1B00-\\u1B03\\u1B34\\u1B36-\\u1B3A\\u1B3C\\u1B42\\u1B6B-\\u1B73\\u1B80\\u1B81\\u1BA2-\\u1BA5\\u1BA8\\u1BA9\\u1C2C-\\u1C33\\u1C36\\u1C37\\u1CD0-\\u1CD2\\u1CD4-\\u1CE0\\u1CE2-\\u1CE8\\u1CED\\u1DC0-\\u1DE6\\u1DFD-\\u1DFF\\u20D0-\\u20DC\\u20E1\\u20E5-\\u20F0\\u2CEF-\\u2CF1\\u2DE0-\\u2DFF\\u302A-\\u302F\\u3099\\u309A\\uA66F\\uA67C\\uA67D\\uA6F0\\uA6F1\\uA802\\uA806\\uA80B\\uA825\\uA826\\uA8C4\\uA8E0-\\uA8F1\\uA926-\\uA92D\\uA947-\\uA951\\uA980-\\uA982\\uA9B3\\uA9B6-\\uA9B9\\uA9BC\\uAA29-\\uAA2E\\uAA31\\uAA32\\uAA35\\uAA36\\uAA43\\uAA4C\\uAAB0\\uAAB2-\\uAAB4\\uAAB7\\uAAB8\\uAABE\\uAABF\\uAAC1\\uABE5\\uABE8\\uABED\\uFB1E\\uFE00-\\uFE0F\\uFE20-\\uFE26]"),
+ space_combining_mark: new RegExp("[\\u0903\\u093E-\\u0940\\u0949-\\u094C\\u094E\\u0982\\u0983\\u09BE-\\u09C0\\u09C7\\u09C8\\u09CB\\u09CC\\u09D7\\u0A03\\u0A3E-\\u0A40\\u0A83\\u0ABE-\\u0AC0\\u0AC9\\u0ACB\\u0ACC\\u0B02\\u0B03\\u0B3E\\u0B40\\u0B47\\u0B48\\u0B4B\\u0B4C\\u0B57\\u0BBE\\u0BBF\\u0BC1\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD7\\u0C01-\\u0C03\\u0C41-\\u0C44\\u0C82\\u0C83\\u0CBE\\u0CC0-\\u0CC4\\u0CC7\\u0CC8\\u0CCA\\u0CCB\\u0CD5\\u0CD6\\u0D02\\u0D03\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D57\\u0D82\\u0D83\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\\u0DF2\\u0DF3\\u0F3E\\u0F3F\\u0F7F\\u102B\\u102C\\u1031\\u1038\\u103B\\u103C\\u1056\\u1057\\u1062-\\u1064\\u1067-\\u106D\\u1083\\u1084\\u1087-\\u108C\\u108F\\u109A-\\u109C\\u17B6\\u17BE-\\u17C5\\u17C7\\u17C8\\u1923-\\u1926\\u1929-\\u192B\\u1930\\u1931\\u1933-\\u1938\\u19B0-\\u19C0\\u19C8\\u19C9\\u1A19-\\u1A1B\\u1A55\\u1A57\\u1A61\\u1A63\\u1A64\\u1A6D-\\u1A72\\u1B04\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43\\u1B44\\u1B82\\u1BA1\\u1BA6\\u1BA7\\u1BAA\\u1C24-\\u1C2B\\u1C34\\u1C35\\u1CE1\\u1CF2\\uA823\\uA824\\uA827\\uA880\\uA881\\uA8B4-\\uA8C3\\uA952\\uA953\\uA983\\uA9B4\\uA9B5\\uA9BA\\uA9BB\\uA9BD-\\uA9C0\\uAA2F\\uAA30\\uAA33\\uAA34\\uAA4D\\uAA7B\\uABE3\\uABE4\\uABE6\\uABE7\\uABE9\\uABEA\\uABEC]"),
+ connector_punctuation: new RegExp("[\\u005F\\u203F\\u2040\\u2054\\uFE33\\uFE34\\uFE4D-\\uFE4F\\uFF3F]")
+};
+
+function is_letter(ch) {
+ return UNICODE.letter.test(ch);
+};
+
+function is_digit(ch) {
+ ch = ch.charCodeAt(0);
+ return ch >= 48 && ch <= 57; //XXX: find out if "UnicodeDigit" means something else than 0..9
+};
+
+function is_alphanumeric_char(ch) {
+ return is_digit(ch) || is_letter(ch);
+};
+
+function is_unicode_combining_mark(ch) {
+ return UNICODE.non_spacing_mark.test(ch) || UNICODE.space_combining_mark.test(ch);
+};
+
+function is_unicode_connector_punctuation(ch) {
+ return UNICODE.connector_punctuation.test(ch);
+};
+
+function is_identifier_start(ch) {
+ return ch == "$" || ch == "_" || is_letter(ch);
+};
+
+function is_identifier_char(ch) {
+ return is_identifier_start(ch)
+ || is_unicode_combining_mark(ch)
+ || is_digit(ch)
+ || is_unicode_connector_punctuation(ch)
+ || ch == "\u200c" // zero-width non-joiner <ZWNJ>
+ || ch == "\u200d" // zero-width joiner <ZWJ> (in my ECMA-262 PDF, this is also 200c)
+ ;
+};
+
+function parse_js_number(num) {
+ if (RE_HEX_NUMBER.test(num)) {
+ return parseInt(num.substr(2), 16);
+ } else if (RE_OCT_NUMBER.test(num)) {
+ return parseInt(num.substr(1), 8);
+ } else if (RE_DEC_NUMBER.test(num)) {
+ return parseFloat(num);
+ }
+};
+
+function JS_Parse_Error(message, line, col, pos) {
+ this.message = message;
+ this.line = line + 1;
+ this.col = col + 1;
+ this.pos = pos + 1;
+ this.stack = new Error().stack;
+};
+
+JS_Parse_Error.prototype.toString = function() {
+ return this.message + " (line: " + this.line + ", col: " + this.col + ", pos: " + this.pos + ")" + "\n\n" + this.stack;
+};
+
+function js_error(message, line, col, pos) {
+ throw new JS_Parse_Error(message, line, col, pos);
+};
+
+function is_token(token, type, val) {
+ return token.type == type && (val == null || token.value == val);
+};
+
+var EX_EOF = {};
+
+function tokenizer($TEXT) {
+
+ var S = {
+ text : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/^\uFEFF/, ''),
+ pos : 0,
+ tokpos : 0,
+ line : 0,
+ tokline : 0,
+ col : 0,
+ tokcol : 0,
+ newline_before : false,
+ regex_allowed : false,
+ comments_before : []
+ };
+
+ function peek() { return S.text.charAt(S.pos); };
+
+ function next(signal_eof, in_string) {
+ var ch = S.text.charAt(S.pos++);
+ if (signal_eof && !ch)
+ throw EX_EOF;
+ if (ch == "\n") {
+ S.newline_before = S.newline_before || !in_string;
+ ++S.line;
+ S.col = 0;
+ } else {
+ ++S.col;
+ }
+ return ch;
+ };
+
+ function eof() {
+ return !S.peek();
+ };
+
+ function find(what, signal_eof) {
+ var pos = S.text.indexOf(what, S.pos);
+ if (signal_eof && pos == -1) throw EX_EOF;
+ return pos;
+ };
+
+ function start_token() {
+ S.tokline = S.line;
+ S.tokcol = S.col;
+ S.tokpos = S.pos;
+ };
+
+ function token(type, value, is_comment) {
+ S.regex_allowed = ((type == "operator" && !HOP(UNARY_POSTFIX, value)) ||
+ (type == "keyword" && HOP(KEYWORDS_BEFORE_EXPRESSION, value)) ||
+ (type == "punc" && HOP(PUNC_BEFORE_EXPRESSION, value)));
+ var ret = {
+ type : type,
+ value : value,
+ line : S.tokline,
+ col : S.tokcol,
+ pos : S.tokpos,
+ endpos : S.pos,
+ nlb : S.newline_before
+ };
+ if (!is_comment) {
+ ret.comments_before = S.comments_before;
+ S.comments_before = [];
+ // make note of any newlines in the comments that came before
+ for (var i = 0, len = ret.comments_before.length; i < len; i++) {
+ ret.nlb = ret.nlb || ret.comments_before[i].nlb;
+ }
+ }
+ S.newline_before = false;
+ return new AST_Token(ret);
+ };
+
+ function skip_whitespace() {
+ while (HOP(WHITESPACE_CHARS, peek()))
+ next();
+ };
+
+ function read_while(pred) {
+ var ret = "", ch = peek(), i = 0;
+ while (ch && pred(ch, i++)) {
+ ret += next();
+ ch = peek();
+ }
+ return ret;
+ };
+
+ function parse_error(err) {
+ js_error(err, S.tokline, S.tokcol, S.tokpos);
+ };
+
+ function read_num(prefix) {
+ var has_e = false, after_e = false, has_x = false, has_dot = prefix == ".";
+ var num = read_while(function(ch, i){
+ if (ch == "x" || ch == "X") {
+ if (has_x) return false;
+ return has_x = true;
+ }
+ if (!has_x && (ch == "E" || ch == "e")) {
+ if (has_e) return false;
+ return has_e = after_e = true;
+ }
+ if (ch == "-") {
+ if (after_e || (i == 0 && !prefix)) return true;
+ return false;
+ }
+ if (ch == "+") return after_e;
+ after_e = false;
+ if (ch == ".") {
+ if (!has_dot && !has_x && !has_e)
+ return has_dot = true;
+ return false;
+ }
+ return is_alphanumeric_char(ch);
+ });
+ if (prefix)
+ num = prefix + num;
+ var valid = parse_js_number(num);
+ if (!isNaN(valid)) {
+ return token("num", valid);
+ } else {
+ parse_error("Invalid syntax: " + num);
+ }
+ };
+
+ function read_escaped_char(in_string) {
+ var ch = next(true, in_string);
+ switch (ch) {
+ case "n" : return "\n";
+ case "r" : return "\r";
+ case "t" : return "\t";
+ case "b" : return "\b";
+ case "v" : return "\u000b";
+ case "f" : return "\f";
+ case "0" : return "\0";
+ case "x" : return String.fromCharCode(hex_bytes(2));
+ case "u" : return String.fromCharCode(hex_bytes(4));
+ case "\n": return "";
+ default : return ch;
+ }
+ };
+
+ function hex_bytes(n) {
+ var num = 0;
+ for (; n > 0; --n) {
+ var digit = parseInt(next(true), 16);
+ if (isNaN(digit))
+ parse_error("Invalid hex-character pattern in string");
+ num = (num << 4) | digit;
+ }
+ return num;
+ };
+
+ function read_string() {
+ return with_eof_error("Unterminated string constant", function(){
+ var quote = next(), ret = "";
+ for (;;) {
+ var ch = next(true);
+ if (ch == "\\") {
+ // read OctalEscapeSequence (XXX: deprecated if "strict mode")
+ // https://github.com/mishoo/UglifyJS/issues/178
+ var octal_len = 0, first = null;
+ ch = read_while(function(ch){
+ if (ch >= "0" && ch <= "7") {
+ if (!first) {
+ first = ch;
+ return ++octal_len;
+ }
+ else if (first <= "3" && octal_len <= 2) return ++octal_len;
+ else if (first >= "4" && octal_len <= 1) return ++octal_len;
+ }
+ return false;
+ });
+ if (octal_len > 0) ch = String.fromCharCode(parseInt(ch, 8));
+ else ch = read_escaped_char(true);
+ }
+ else if (ch == quote) break;
+ ret += ch;
+ }
+ return token("string", ret);
+ });
+ };
+
+ function read_line_comment() {
+ next();
+ var i = find("\n"), ret;
+ if (i == -1) {
+ ret = S.text.substr(S.pos);
+ S.pos = S.text.length;
+ } else {
+ ret = S.text.substring(S.pos, i);
+ S.pos = i;
+ }
+ return token("comment1", ret, true);
+ };
+
+ function read_multiline_comment() {
+ next();
+ return with_eof_error("Unterminated multiline comment", function(){
+ var i = find("*/", true),
+ text = S.text.substring(S.pos, i);
+ S.pos = i + 2;
+ S.line += text.split("\n").length - 1;
+ S.newline_before = S.newline_before || text.indexOf("\n") >= 0;
+
+ // https://github.com/mishoo/UglifyJS/issues/#issue/100
+ if (/^@cc_on/i.test(text)) {
+ warn("WARNING: at line " + S.line);
+ warn("*** Found \"conditional comment\": " + text);
+ warn("*** UglifyJS DISCARDS ALL COMMENTS. This means your code might no longer work properly in Internet Explorer.");
+ }
+
+ return token("comment2", text, true);
+ });
+ };
+
+ function read_name() {
+ var backslash = false, name = "", ch, escaped = false, hex;
+ while ((ch = peek()) != null) {
+ if (!backslash) {
+ if (ch == "\\") escaped = backslash = true, next();
+ else if (is_identifier_char(ch)) name += next();
+ else break;
+ }
+ else {
+ if (ch != "u") parse_error("Expecting UnicodeEscapeSequence -- uXXXX");
+ ch = read_escaped_char();
+ if (!is_identifier_char(ch)) parse_error("Unicode char: " + ch.charCodeAt(0) + " is not valid in identifier");
+ name += ch;
+ backslash = false;
+ }
+ }
+ if (HOP(KEYWORDS, name) && escaped) {
+ hex = name.charCodeAt(0).toString(16).toUpperCase();
+ name = "\\u" + "0000".substr(hex.length) + hex + name.slice(1);
+ }
+ return name;
+ };
+
+ function read_regexp(regexp) {
+ return with_eof_error("Unterminated regular expression", function(){
+ var prev_backslash = false, ch, in_class = false;
+ while ((ch = next(true))) if (prev_backslash) {
+ regexp += "\\" + ch;
+ prev_backslash = false;
+ } else if (ch == "[") {
+ in_class = true;
+ regexp += ch;
+ } else if (ch == "]" && in_class) {
+ in_class = false;
+ regexp += ch;
+ } else if (ch == "/" && !in_class) {
+ break;
+ } else if (ch == "\\") {
+ prev_backslash = true;
+ } else {
+ regexp += ch;
+ }
+ var mods = read_name();
+ return token("regexp", [ regexp, mods ]);
+ });
+ };
+
+ function read_operator(prefix) {
+ function grow(op) {
+ if (!peek()) return op;
+ var bigger = op + peek();
+ if (HOP(OPERATORS, bigger)) {
+ next();
+ return grow(bigger);
+ } else {
+ return op;
+ }
+ };
+ return token("operator", grow(prefix || next()));
+ };
+
+ function handle_slash() {
+ next();
+ var regex_allowed = S.regex_allowed;
+ switch (peek()) {
+ case "/":
+ S.comments_before.push(read_line_comment());
+ S.regex_allowed = regex_allowed;
+ return next_token();
+ case "*":
+ S.comments_before.push(read_multiline_comment());
+ S.regex_allowed = regex_allowed;
+ return next_token();
+ }
+ return S.regex_allowed ? read_regexp("") : read_operator("/");
+ };
+
+ function handle_dot() {
+ next();
+ return is_digit(peek())
+ ? read_num(".")
+ : token("punc", ".");
+ };
+
+ function read_word() {
+ var word = read_name();
+ return HOP(KEYWORDS_ATOM, word)
+ ? token("atom", word)
+ : !HOP(KEYWORDS, word)
+ ? token("name", word)
+ : HOP(OPERATORS, word)
+ ? token("operator", word)
+ : token("keyword", word);
+ };
+
+ function with_eof_error(eof_error, cont) {
+ try {
+ return cont();
+ } catch(ex) {
+ if (ex === EX_EOF) parse_error(eof_error);
+ else throw ex;
+ }
+ };
+
+ function next_token(force_regexp) {
+ if (force_regexp != null)
+ return read_regexp(force_regexp);
+ skip_whitespace();
+ start_token();
+ var ch = peek();
+ if (!ch) return token("eof");
+ if (is_digit(ch)) return read_num();
+ if (ch == '"' || ch == "'") return read_string();
+ if (HOP(PUNC_CHARS, ch)) return token("punc", next());
+ if (ch == ".") return handle_dot();
+ if (ch == "/") return handle_slash();
+ if (HOP(OPERATOR_CHARS, ch)) return read_operator();
+ if (ch == "\\" || is_identifier_start(ch)) return read_word();
+ parse_error("Unexpected character '" + ch + "'");
+ };
+
+ next_token.context = function(nc) {
+ if (nc) S = nc;
+ return S;
+ };
+
+ return next_token;
+
+};
+
+/* -----[ Parser (constants) ]----- */
+
+var UNARY_PREFIX = array_to_hash([
+ "typeof",
+ "void",
+ "delete",
+ "--",
+ "++",
+ "!",
+ "~",
+ "-",
+ "+"
+]);
+
+var UNARY_POSTFIX = array_to_hash([ "--", "++" ]);
+
+var ASSIGNMENT = (function(a, ret, i){
+ while (i < a.length) {
+ ret[a[i]] = a[i].substr(0, a[i].length - 1);
+ i++;
+ }
+ return ret;
+})(
+ ["+=", "-=", "/=", "*=", "%=", ">>=", "<<=", ">>>=", "|=", "^=", "&="],
+ { "=": true },
+ 0
+);
+
+var PRECEDENCE = (function(a, ret){
+ for (var i = 0, n = 1; i < a.length; ++i, ++n) {
+ var b = a[i];
+ for (var j = 0; j < b.length; ++j) {
+ ret[b[j]] = n;
+ }
+ }
+ return ret;
+})(
+ [
+ ["||"],
+ ["&&"],
+ ["|"],
+ ["^"],
+ ["&"],
+ ["==", "===", "!=", "!=="],
+ ["<", ">", "<=", ">=", "in", "instanceof"],
+ [">>", "<<", ">>>"],
+ ["+", "-"],
+ ["*", "/", "%"]
+ ],
+ {}
+);
+
+var STATEMENTS_WITH_LABELS = array_to_hash([ "for", "do", "while", "switch" ]);
+
+var ATOMIC_START_TOKEN = array_to_hash([ "atom", "num", "string", "regexp", "name" ]);
+
+/* -----[ Parser ]----- */
+
+function parse($TEXT, exigent_mode) {
+
+ var S = {
+ input : typeof $TEXT == "string" ? tokenizer($TEXT, true) : $TEXT,
+ token : null,
+ prev : null,
+ peeked : null,
+ in_function : 0,
+ in_directives : true,
+ in_loop : 0,
+ labels : []
+ };
+
+ S.token = next();
+
+ function is(type, value) {
+ return is_token(S.token, type, value);
+ };
+
+ function peek() { return S.peeked || (S.peeked = S.input()); };
+
+ function next() {
+ S.prev = S.token;
+ if (S.peeked) {
+ S.token = S.peeked;
+ S.peeked = null;
+ } else {
+ S.token = S.input();
+ }
+ S.in_directives = S.in_directives && (
+ S.token.type == "string" || is("punc", ";")
+ );
+ return S.token;
+ };
+
+ function prev() {
+ return S.prev;
+ };
+
+ function croak(msg, line, col, pos) {
+ var ctx = S.input.context();
+ js_error(msg,
+ line != null ? line : ctx.tokline,
+ col != null ? col : ctx.tokcol,
+ pos != null ? pos : ctx.tokpos);
+ };
+
+ function token_error(token, msg) {
+ croak(msg, token.line, token.col);
+ };
+
+ function unexpected(token) {
+ if (token == null)
+ token = S.token;
+ token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
+ };
+
+ function expect_token(type, val) {
+ if (is(type, val)) {
+ return next();
+ }
+ token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
+ };
+
+ function expect(punc) { return expect_token("punc", punc); };
+
+ function can_insert_semicolon() {
+ return !exigent_mode && (
+ S.token.nlb || is("eof") || is("punc", "}")
+ );
+ };
+
+ function semicolon() {
+ if (is("punc", ";")) next();
+ else if (!can_insert_semicolon()) unexpected();
+ };
+
+ function parenthesised() {
+ expect("(");
+ var ex = expression();
+ expect(")");
+ return ex;
+ };
+
+ function embed_tokens(parser) {
+ return function() {
+ var start = S.token;
+ var expr = parser.apply(this, arguments);
+ var end = prev();
+ expr.start = start;
+ expr.end = end;
+ return expr;
+ };
+ };
+
+ var statement = embed_tokens(function() {
+ if (is("operator", "/") || is("operator", "/=")) {
+ S.peeked = null;
+ S.token = S.input(S.token.value.substr(1)); // force regexp
+ }
+ switch (S.token.type) {
+ case "string":
+ var dir = S.in_directives, stat = simple_statement();
+ // XXXv2: decide how to fix directives
+ // if (dir && stat instanceof AST_String && !is("punc", ","))
+ // return new AST_Directive({ value: stat.value });
+ return stat;
+ case "num":
+ case "regexp":
+ case "operator":
+ case "atom":
+ return simple_statement();
+
+ case "name":
+ return is_token(peek(), "punc", ":")
+ ? labeled_statement()
+ : simple_statement();
+
+ case "punc":
+ switch (S.token.value) {
+ case "{":
+ return new AST_Statement({ body: block_() });
+ case "[":
+ case "(":
+ return simple_statement();
+ case ";":
+ next();
+ return new AST_Statement();
+ default:
+ unexpected();
+ }
+
+ case "keyword":
+ switch (prog1(S.token.value, next)) {
+ case "break":
+ return break_cont(AST_Break);
+
+ case "continue":
+ return break_cont(AST_Continue);
+
+ case "debugger":
+ semicolon();
+ return new AST_Debugger();
+
+ case "do":
+ return new AST_Do({
+ body : in_loop(statement),
+ condition : (expect_token("while"), prog1(parenthesised, semicolon))
+ });
+
+ case "while":
+ return new AST_While({
+ condition : parenthesised(),
+ body : in_loop(statement)
+ });
+
+ case "for":
+ return for_();
+
+ case "function":
+ return function_(true);
+
+ case "if":
+ return if_();
+
+ case "return":
+ if (S.in_function == 0)
+ croak("'return' outside of function");
+ return new AST_Return({
+ value: ( is("punc", ";")
+ ? (next(), null)
+ : can_insert_semicolon()
+ ? null
+ : prog1(expression, semicolon) )
+ });
+
+ case "switch":
+ return new AST_Switch({
+ expression : parenthesised(),
+ body : switch_block_()
+ });
+
+ case "throw":
+ if (S.token.nlb)
+ croak("Illegal newline after 'throw'");
+ return new AST_Throw({
+ value: prog1(expression, semicolon)
+ });
+
+ case "try":
+ return try_();
+
+ case "var":
+ return prog1(var_, semicolon);
+
+ case "const":
+ return prog1(const_, semicolon);
+
+ case "with":
+ return new AST_With({
+ expression : parenthesised(),
+ body : statement()
+ });
+
+ default:
+ unexpected();
+ }
+ }
+ });
+
+ function labeled_statement() {
+ var label = S.token.value;
+ next();
+ expect(":");
+ S.labels.push(label);
+ var start = S.token, stat = statement();
+ if (exigent_mode && !(stat instanceof AST_LabeledStatement))
+ unexpected(start);
+ S.labels.pop();
+ stat.label = label;
+ return stat;
+ };
+
+ function simple_statement() {
+ return new AST_Statement({ body: prog1(expression, semicolon) });
+ };
+
+ function break_cont(type) {
+ var name = null;
+ if (!can_insert_semicolon()) {
+ name = is("name") ? S.token.value : null;
+ }
+ if (name != null) {
+ next();
+ if (!member(name, S.labels))
+ croak("Label " + name + " without matching loop or statement");
+ }
+ else if (S.in_loop == 0)
+ croak(type.TYPE + " not inside a loop or switch");
+ semicolon();
+ return new type({ label: name });
+ };
+
+ function for_() {
+ expect("(");
+ var init = null;
+ if (!is("punc", ";")) {
+ init = is("keyword", "var")
+ ? (next(), var_(true))
+ : expression(true, true);
+ if (is("operator", "in")) {
+ if (init instanceof AST_Var && init.definitions.length > 1)
+ croak("Only one variable declaration allowed in for..in loop");
+ next();
+ return for_in(init);
+ }
+ }
+ return regular_for(init);
+ };
+
+ function regular_for(init) {
+ expect(";");
+ var test = is("punc", ";") ? null : expression();
+ expect(";");
+ var step = is("punc", ")") ? null : expression();
+ expect(")");
+ return new AST_For({
+ init : init,
+ condition : test,
+ step : step,
+ body : in_loop(statement)
+ });
+ };
+
+ function for_in(init) {
+ var lhs = init instanceof AST_Var ? init.definitions[0].name : init;
+ var obj = expression();
+ expect(")");
+ return new AST_ForIn({
+ init : init,
+ lhs : lhs,
+ object : obj,
+ body : in_loop(statement)
+ });
+ };
+
+ var function_ = function(in_statement) {
+ var name = is("name") ? as_symbol() : null;
+ if (in_statement && !name)
+ unexpected();
+ expect("(");
+ var ctor = in_statement ? AST_Defun : AST_Function;
+ return new ctor({
+ name: name,
+ argnames: (function(first, a){
+ while (!is("punc", ")")) {
+ if (first) first = false; else expect(",");
+ a.push(as_symbol());
+ }
+ next();
+ return a;
+ })(true, []),
+ body: embed_tokens(function(){
+ ++S.in_function;
+ var loop = S.in_loop;
+ S.in_directives = true;
+ S.in_loop = 0;
+ var a = block_();
+ --S.in_function;
+ S.in_loop = loop;
+ return new AST_Bracketed({ body: a });
+ })()
+ });
+ };
+
+ function if_() {
+ var cond = parenthesised(), body = statement(), belse = null;
+ if (is("keyword", "else")) {
+ next();
+ belse = statement();
+ }
+ return new AST_If({
+ condition : cond,
+ consequent : body,
+ alternative : belse
+ });
+ };
+
+ function block_() {
+ expect("{");
+ var a = [];
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ a.push(statement());
+ }
+ next();
+ return a;
+ };
+
+ var switch_block_ = embed_tokens(curry(in_loop, function(){
+ expect("{");
+ var a = [], cur = null;
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ if (is("keyword", "case")) {
+ next();
+ cur = [];
+ a.push(new AST_Case({ expression: expression(), body: cur }));
+ expect(":");
+ }
+ else if (is("keyword", "default")) {
+ next();
+ expect(":");
+ cur = [];
+ a.push(new AST_Default({ body: cur }));
+ }
+ else {
+ if (!cur) unexpected();
+ cur.push(statement());
+ }
+ }
+ next();
+ return new AST_SwitchBlock({ body: a });
+ }));
+
+ function try_() {
+ var body = new AST_Bracketed({
+ body: block_()
+ }), bcatch = null, bfinally = null;
+ if (is("keyword", "catch")) {
+ next();
+ expect("(");
+ var name = as_symbol();
+ next();
+ expect(")");
+ bcatch = new AST_Catch({
+ argname : name,
+ body : new AST_Bracketed({ body: block_() })
+ });
+ }
+ if (is("keyword", "finally")) {
+ next();
+ bfinally = new AST_Finally({ body: block_() });
+ }
+ if (!bcatch && !bfinally)
+ croak("Missing catch/finally blocks");
+ return new AST_Try({
+ btry : body,
+ bcatch : bcatch,
+ bfinally : bfinally
+ });
+ };
+
+ function vardefs(no_in) {
+ var a = [];
+ for (;;) {
+ a.push(new AST_VarDef({
+ start : S.token,
+ name : as_symbol(),
+ value : is("operator", "=") ? (next(), expression(false, no_in)) : null,
+ end : prev()
+ }));
+ if (!is("punc", ","))
+ break;
+ next();
+ }
+ return a;
+ };
+
+ var var_ = embed_tokens(function(no_in) {
+ return new AST_Var({
+ definitions: vardefs(no_in)
+ });
+ });
+
+ var const_ = embed_tokens(function() {
+ return new AST_Const({
+ definitions: vardefs()
+ });
+ });
+
+ var new_ = embed_tokens(function() {
+ var newexp = expr_atom(false), args;
+ if (is("punc", "(")) {
+ next();
+ args = expr_list(")");
+ } else {
+ args = [];
+ }
+ return subscripts(new AST_New({
+ expression : newexp,
+ args : args
+ }), true);
+ });
+
+ function as_atom_node() {
+ var tok = S.token, ret;
+ switch (tok.type) {
+ case "name":
+ return as_symbol();
+ case "num":
+ ret = new AST_Number({ start: tok, end: tok, value: tok.value });
+ break;
+ case "string":
+ ret = new AST_String({ start: tok, end: tok, value: tok.value });
+ break;
+ case "regexp":
+ ret = new AST_RegExp({ start: tok, end: tok, pattern: tok.value[0], mods: tok.value[1] });
+ break;
+ case "atom":
+ switch (tok.value) {
+ case "false":
+ ret = new AST_False({ start: tok, end: tok });
+ break;
+ case "true":
+ ret = new AST_True({ start: tok, end: tok });
+ break;
+ case "null":
+ ret = new AST_Null({ start: tok, end: tok });
+ break;
+ }
+ break;
+ }
+ next();
+ return ret;
+ };
+
+ var expr_atom = function(allow_calls) {
+ if (is("operator", "new")) {
+ next();
+ return new_();
+ }
+ if (is("punc")) {
+ switch (S.token.value) {
+ case "(":
+ next();
+ return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
+ case "[":
+ next();
+ return subscripts(array_(), allow_calls);
+ case "{":
+ next();
+ return subscripts(object_(), allow_calls);
+ }
+ unexpected();
+ }
+ if (is("keyword", "function")) {
+ var start = S.token;
+ next();
+ var func = function_(false);
+ func.start = start;
+ func.end = prev();
+ return subscripts(func, allow_calls);
+ }
+ if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
+ return subscripts(as_atom_node(), allow_calls);
+ }
+ unexpected();
+ };
+
+ function expr_list(closing, allow_trailing_comma, allow_empty) {
+ var first = true, a = [];
+ while (!is("punc", closing)) {
+ if (first) first = false; else expect(",");
+ if (allow_trailing_comma && is("punc", closing)) break;
+ if (is("punc", ",") && allow_empty) {
+ a.push(new AST_Undefined({ start: S.token, end: S.token }));
+ } else {
+ a.push(expression(false));
+ }
+ }
+ next();
+ return a;
+ };
+
+ function array_() {
+ return new AST_Array({
+ elements: expr_list("]", !exigent_mode, true)
+ });
+ };
+
+ var object_ = embed_tokens(function() {
+ var first = true, a = [];
+ while (!is("punc", "}")) {
+ if (first) first = false; else expect(",");
+ if (!exigent_mode && is("punc", "}"))
+ // allow trailing comma
+ break;
+ var start = S.token;
+ var type = start.type;
+ var name = as_property_name();
+ if (type == "name" && !is("punc", ":")) {
+ if (name.name == "get") {
+ a.push(new AST_ObjectGetter({
+ start : start,
+ name : name,
+ func : function_(false),
+ end : prev()
+ }));
+ continue;
+ }
+ if (name.name == "set") {
+ a.push(new AST_ObjectSetter({
+ start : start,
+ name : name,
+ func : function_(false),
+ end : prev()
+ }));
+ continue;
+ }
+ }
+ expect(":");
+ a.push(new AST_ObjectKeyVal({
+ start : start,
+ key : name,
+ value : expression(false),
+ end : prev()
+ }));
+ }
+ next();
+ return new AST_Object({ properties: a });
+ });
+
+ function as_property_name() {
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ return as_symbol(true);
+ }
+ return as_name();
+ };
+
+ function as_name() {
+ switch (S.token.type) {
+ case "name":
+ case "operator":
+ case "keyword":
+ case "atom":
+ return as_symbol(true);
+ default:
+ unexpected();
+ }
+ };
+
+ function as_symbol(noerror) {
+ if (!noerror && !is("name")) croak("Name expected");
+ var sym = new AST_Symbol({
+ name : String(S.token.value),
+ start : S.token,
+ end : S.token
+ });
+ next();
+ return sym;
+ };
+
+ var subscripts = embed_tokens(function(expr, allow_calls) {
+ if (is("punc", ".")) {
+ next();
+ return subscripts(new AST_Dot({
+ expression : expr,
+ property : as_name()
+ }), allow_calls);
+ }
+ if (is("punc", "[")) {
+ next();
+ return subscripts(new AST_Sub({
+ expression : expr,
+ property : prog1(expression, curry(expect, "]"))
+ }), allow_calls);
+ }
+ if (allow_calls && is("punc", "(")) {
+ next();
+ return subscripts(new AST_Call({
+ expression : expr,
+ args : expr_list(")")
+ }), true);
+ }
+ return expr;
+ });
+
+ var maybe_unary = embed_tokens(function(allow_calls) {
+ if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
+ return make_unary(AST_UnaryPrefix,
+ prog1(S.token.value, next),
+ maybe_unary(allow_calls));
+ }
+ var val = expr_atom(allow_calls);
+ while (is("operator") && HOP(UNARY_POSTFIX, S.token.value) && !S.token.nlb) {
+ val = make_unary(AST_UnaryPostfix, S.token.value, val);
+ next();
+ }
+ return val;
+ });
+
+ function make_unary(ctor, op, expr) {
+ if ((op == "++" || op == "--") && !is_assignable(expr))
+ croak("Invalid use of " + op + " operator");
+ return new ctor({ operator: op, expression: expr });
+ };
+
+ var expr_op = embed_tokens(function(left, min_prec, no_in) {
+ var op = is("operator") ? S.token.value : null;
+ if (op == "in" && no_in) op = null;
+ var prec = op != null ? PRECEDENCE[op] : null;
+ if (prec != null && prec > min_prec) {
+ next();
+ var right = expr_op(maybe_unary(true), prec, no_in);
+ return expr_op(new AST_Binary({
+ left : left,
+ operator : op,
+ right : right
+ }), min_prec, no_in);
+ }
+ return left;
+ });
+
+ function expr_ops(no_in) {
+ return expr_op(maybe_unary(true), 0, no_in);
+ };
+
+ var maybe_conditional = embed_tokens(function(no_in) {
+ var expr = expr_ops(no_in);
+ if (is("operator", "?")) {
+ next();
+ var yes = expression(false);
+ expect(":");
+ return new AST_Conditional({
+ condition: expr,
+ consequent: yes,
+ alternative: expression(false, no_in)
+ });
+ }
+ return expr;
+ });
+
+ function is_assignable(expr) {
+ if (!exigent_mode) return true;
+ switch (expr[0]+"") {
+ case "dot":
+ case "sub":
+ case "new":
+ case "call":
+ return true;
+ case "name":
+ return expr[1] != "this";
+ }
+ };
+
+ var maybe_assign = embed_tokens(function(no_in) {
+ var left = maybe_conditional(no_in), val = S.token.value;
+ if (is("operator") && HOP(ASSIGNMENT, val)) {
+ if (is_assignable(left)) {
+ next();
+ return new AST_Assign({
+ left : left,
+ operator : ASSIGNMENT[val],
+ right : maybe_assign(no_in)
+ });
+ }
+ croak("Invalid assignment");
+ }
+ return left;
+ });
+
+ var expression = embed_tokens(function(commas, no_in) {
+ if (arguments.length == 0)
+ commas = true;
+ var expr = maybe_assign(no_in);
+ if (commas && is("punc", ",")) {
+ next();
+ return new AST_Seq({
+ first : expr,
+ second : expression(true, no_in)
+ });
+ }
+ return expr;
+ });
+
+ function in_loop(cont) {
+ ++S.in_loop;
+ var ret = cont();
+ --S.in_loop;
+ return ret;
+ };
+
+ return new AST_Toplevel({
+ body: (function(a){
+ while (!is("eof"))
+ a.push(statement());
+ return a;
+ })([])
+ });
+
+};
+
+var warn = function() {};
--- /dev/null
+var func = function parse($TEXT, exigent_mode) {
+
+ var S = {
+ input : typeof $TEXT == "string" ? tokenizer($TEXT, true) : $TEXT,
+ token : null,
+ prev : null,
+ peeked : null,
+ in_function : 0,
+ in_directives : true,
+ in_loop : 0,
+ labels : []
+ };
+
+ S.token = next();
+
+ function is(type, value) {
+ return is_token(S.token, type, value);
+ };
+
+ function peek() { return S.peeked || (S.peeked = S.input()); };
+
+ function next() {
+ S.prev = S.token;
+ if (S.peeked) {
+ S.token = S.peeked;
+ S.peeked = null;
+ } else {
+ S.token = S.input();
+ }
+ S.in_directives = S.in_directives && (
+ S.token.type == "string" || is("punc", ";")
+ );
+ return S.token;
+ };
+
+ function prev() {
+ return S.prev;
+ };
+
+ function croak(msg, line, col, pos) {
+ var ctx = S.input.context();
+ js_error(msg,
+ line != null ? line : ctx.tokline,
+ col != null ? col : ctx.tokcol,
+ pos != null ? pos : ctx.tokpos);
+ };
+
+ function token_error(token, msg) {
+ croak(msg, token.line, token.col);
+ };
+
+ function unexpected(token) {
+ if (token == null)
+ token = S.token;
+ token_error(token, "Unexpected token: " + token.type + " (" + token.value + ")");
+ };
+
+ function expect_token(type, val) {
+ if (is(type, val)) {
+ return next();
+ }
+ token_error(S.token, "Unexpected token " + S.token.type + ", expected " + type);
+ };
+
+ function expect(punc) { return expect_token("punc", punc); };
+
+ function can_insert_semicolon() {
+ return !exigent_mode && (
+ S.token.nlb || is("eof") || is("punc", "}")
+ );
+ };
+
+ function semicolon() {
+ if (is("punc", ";")) next();
+ else if (!can_insert_semicolon()) unexpected();
+ };
+
+ function parenthesised() {
+ expect("(");
+ var ex = expression();
+ expect(")");
+ return ex;
+ };
+
+ function embed_tokens(parser) {
+ return function() {
+ var start = S.token;
+ var expr = parser.apply(this, arguments);
+ var end = prev();
+ expr.start = start;
+ expr.end = end;
+ return expr;
+ };
+ };
+
+ var statement = embed_tokens(function() {
+ if (is("operator", "/") || is("operator", "/=")) {
+ S.peeked = null;
+ S.token = S.input(S.token.value.substr(1)); // force regexp
+ }
+ switch (S.token.type) {
+ case "string":
+ var dir = S.in_directives, stat = simple_statement();
+ // XXXv2: decide how to fix directives
+ // if (dir && stat instanceof AST_String && !is("punc", ","))
+ // return new AST_Directive({ value: stat.value });
+ return stat;
+ case "num":
+ case "regexp":
+ case "operator":
+ case "atom":
+ return simple_statement();
+
+ case "name":
+ return is_token(peek(), "punc", ":")
+ ? labeled_statement()
+ : simple_statement();
+
+ case "punc":
+ switch (S.token.value) {
+ case "{":
+ return new AST_Statement({ body: block_() });
+ case "[":
+ case "(":
+ return simple_statement();
+ case ";":
+ next();
+ return new AST_Statement();
+ default:
+ unexpected();
+ }
+
+ case "keyword":
+ switch (prog1(S.token.value, next)) {
+ case "break":
+ return break_cont(AST_Break);
+
+ case "continue":
+ return break_cont(AST_Continue);
+
+ case "debugger":
+ semicolon();
+ return new AST_Debugger();
+
+ case "do":
+ return new AST_Do({
+ body : in_loop(statement),
+ condition : (expect_token("while"), prog1(parenthesised, semicolon))
+ });
+
+ case "while":
+ return new AST_While({
+ condition : parenthesised(),
+ body : in_loop(statement)
+ });
+
+ case "for":
+ return for_();
+
+ case "function":
+ return function_(true);
+
+ case "if":
+ return if_();
+
+ case "return":
+ if (S.in_function == 0)
+ croak("'return' outside of function");
+ return new AST_Return({
+ value: ( is("punc", ";")
+ ? (next(), null)
+ : can_insert_semicolon()
+ ? null
+ : prog1(expression, semicolon) )
+ });
+
+ case "switch":
+ return new AST_Switch({
+ expression : parenthesised(),
+ body : switch_block_()
+ });
+
+ case "throw":
+ if (S.token.nlb)
+ croak("Illegal newline after 'throw'");
+ return new AST_Throw({
+ value: prog1(expression, semicolon)
+ });
+
+ case "try":
+ return try_();
+
+ case "var":
+ return prog1(var_, semicolon);
+
+ case "const":
+ return prog1(const_, semicolon);
+
+ case "with":
+ return new AST_With({
+ expression : parenthesised(),
+ body : statement()
+ });
+
+ default:
+ unexpected();
+ }
+ }
+ });
+
+ function labeled_statement() {
+ var label = S.token.value;
+ next();
+ expect(":");
+ S.labels.push(label);
+ var start = S.token, stat = statement();
+ if (exigent_mode && !(stat instanceof AST_LabeledStatement))
+ unexpected(start);
+ S.labels.pop();
+ stat.label = label;
+ return stat;
+ };
+
+ function simple_statement() {
+ return new AST_Statement({ body: prog1(expression, semicolon) });
+ };
+
+ function break_cont(type) {
+ var name = null;
+ if (!can_insert_semicolon()) {
+ name = is("name") ? S.token.value : null;
+ }
+ if (name != null) {
+ next();
+ if (!member(name, S.labels))
+ croak("Label " + name + " without matching loop or statement");
+ }
+ else if (S.in_loop == 0)
+ croak(type.TYPE + " not inside a loop or switch");
+ semicolon();
+ return new type({ label: name });
+ };
+
+ function for_() {
+ expect("(");
+ var init = null;
+ if (!is("punc", ";")) {
+ init = is("keyword", "var")
+ ? (next(), var_(true))
+ : expression(true, true);
+ if (is("operator", "in")) {
+ if (init instanceof AST_Var && init.definitions.length > 1)
+ croak("Only one variable declaration allowed in for..in loop");
+ next();
+ return for_in(init);
+ }
+ }
+ return regular_for(init);
+ };
+
+ function regular_for(init) {
+ expect(";");
+ var test = is("punc", ";") ? null : expression();
+ expect(";");
+ var step = is("punc", ")") ? null : expression();
+ expect(")");
+ return new AST_For({
+ init : init,
+ condition : test,
+ step : step,
+ body : in_loop(statement)
+ });
+ };
+
+ function for_in(init) {
+ var lhs = init instanceof AST_Var ? init.definitions[0].name : init;
+ var obj = expression();
+ expect(")");
+ return new AST_ForIn({
+ init : init,
+ lhs : lhs,
+ object : obj,
+ body : in_loop(statement)
+ });
+ };
+
+ var function_ = function(in_statement) {
+ var name = is("name") ? as_symbol() : null;
+ if (in_statement && !name)
+ unexpected();
+ expect("(");
+ var ctor = in_statement ? AST_Defun : AST_Function;
+ return new ctor({
+ name: name,
+ argnames: (function(first, a){
+ while (!is("punc", ")")) {
+ if (first) first = false; else expect(",");
+ a.push(as_symbol());
+ }
+ next();
+ return a;
+ })(true, []),
+ body: embed_tokens(function(){
+ ++S.in_function;
+ var loop = S.in_loop;
+ S.in_directives = true;
+ S.in_loop = 0;
+ var a = block_();
+ --S.in_function;
+ S.in_loop = loop;
+ return new AST_Bracketed({ body: a });
+ })()
+ });
+ };
+
+ function if_() {
+ var cond = parenthesised(), body = statement(), belse = null;
+ if (is("keyword", "else")) {
+ next();
+ belse = statement();
+ }
+ return new AST_If({
+ condition : cond,
+ consequent : body,
+ alternative : belse
+ });
+ };
+
+ function block_() {
+ expect("{");
+ var a = [];
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ a.push(statement());
+ }
+ next();
+ return a;
+ };
+
+ var switch_block_ = embed_tokens(curry(in_loop, function(){
+ expect("{");
+ var a = [], cur = null;
+ while (!is("punc", "}")) {
+ if (is("eof")) unexpected();
+ if (is("keyword", "case")) {
+ next();
+ cur = [];
+ a.push(new AST_Case({ expression: expression(), body: cur }));
+ expect(":");
+ }
+ else if (is("keyword", "default")) {
+ next();
+ expect(":");
+ cur = [];
+ a.push(new AST_Default({ body: cur }));
+ }
+ else {
+ if (!cur) unexpected();
+ cur.push(statement());
+ }
+ }
+ next();
+ return new AST_SwitchBlock({ body: a });
+ }));
+
+ function try_() {
+ var body = new AST_Bracketed({
+ body: block_()
+ }), bcatch = null, bfinally = null;
+ if (is("keyword", "catch")) {
+ next();
+ expect("(");
+ var name = as_symbol();
+ next();
+ expect(")");
+ bcatch = new AST_Catch({
+ argname : name,
+ body : new AST_Bracketed({ body: block_() })
+ });
+ }
+ if (is("keyword", "finally")) {
+ next();
+ bfinally = new AST_Finally({ body: block_() });
+ }
+ if (!bcatch && !bfinally)
+ croak("Missing catch/finally blocks");
+ return new AST_Try({
+ btry : body,
+ bcatch : bcatch,
+ bfinally : bfinally
+ });
+ };
+
+ function vardefs(no_in) {
+ var a = [];
+ for (;;) {
+ a.push(new AST_VarDef({
+ start : S.token,
+ name : as_symbol(),
+ value : is("operator", "=") ? (next(), expression(false, no_in)) : null,
+ end : prev()
+ }));
+ if (!is("punc", ","))
+ break;
+ next();
+ }
+ return a;
+ };
+
+ var var_ = embed_tokens(function(no_in) {
+ return new AST_Var({
+ definitions: vardefs(no_in)
+ });
+ });
+
+ var const_ = embed_tokens(function() {
+ return new AST_Const({
+ definitions: vardefs()
+ });
+ });
+
+ var new_ = embed_tokens(function() {
+ var newexp = expr_atom(false), args;
+ if (is("punc", "(")) {
+ next();
+ args = expr_list(")");
+ } else {
+ args = [];
+ }
+ return subscripts(new AST_New({
+ expression : newexp,
+ args : args
+ }), true);
+ });
+
+ function as_atom_node() {
+ var tok = S.token, ret;
+ switch (tok.type) {
+ case "name":
+ return as_symbol();
+ case "num":
+ ret = new AST_Number({ start: tok, end: tok, value: tok.value });
+ break;
+ case "string":
+ ret = new AST_String({ start: tok, end: tok, value: tok.value });
+ break;
+ case "regexp":
+ ret = new AST_RegExp({ start: tok, end: tok, pattern: tok.value[0], mods: tok.value[1] });
+ break;
+ case "atom":
+ switch (tok.value) {
+ case "false":
+ ret = new AST_False({ start: tok, end: tok });
+ break;
+ case "true":
+ ret = new AST_True({ start: tok, end: tok });
+ break;
+ case "null":
+ ret = new AST_Null({ start: tok, end: tok });
+ break;
+ }
+ break;
+ }
+ next();
+ return ret;
+ };
+
+ var expr_atom = function(allow_calls) {
+ if (is("operator", "new")) {
+ next();
+ return new_();
+ }
+ if (is("punc")) {
+ switch (S.token.value) {
+ case "(":
+ next();
+ return subscripts(prog1(expression, curry(expect, ")")), allow_calls);
+ case "[":
+ next();
+ return subscripts(array_(), allow_calls);
+ case "{":
+ next();
+ return subscripts(object_(), allow_calls);
+ }
+ unexpected();
+ }
+ if (is("keyword", "function")) {
+ var start = S.token;
+ next();
+ var func = function_(false);
+ func.start = start;
+ func.end = prev();
+ return subscripts(func, allow_calls);
+ }
+ if (HOP(ATOMIC_START_TOKEN, S.token.type)) {
+ return subscripts(as_atom_node(), allow_calls);
+ }
+ unexpected();
+ };
+
+ function expr_list(closing, allow_trailing_comma, allow_empty) {
+ var first = true, a = [];
+ while (!is("punc", closing)) {
+ if (first) first = false; else expect(",");
+ if (allow_trailing_comma && is("punc", closing)) break;
+ if (is("punc", ",") && allow_empty) {
+ a.push(new AST_Undefined({ start: S.token, end: S.token }));
+ } else {
+ a.push(expression(false));
+ }
+ }
+ next();
+ return a;
+ };
+
+ function array_() {
+ return new AST_Array({
+ elements: expr_list("]", !exigent_mode, true)
+ });
+ };
+
+ var object_ = embed_tokens(function() {
+ var first = true, a = [];
+ while (!is("punc", "}")) {
+ if (first) first = false; else expect(",");
+ if (!exigent_mode && is("punc", "}"))
+ // allow trailing comma
+ break;
+ var start = S.token;
+ var type = start.type;
+ var name = as_property_name();
+ if (type == "name" && !is("punc", ":")) {
+ if (name.name == "get") {
+ a.push(new AST_ObjectGetter({
+ start : start,
+ name : name,
+ func : function_(false),
+ end : prev()
+ }));
+ continue;
+ }
+ if (name.name == "set") {
+ a.push(new AST_ObjectSetter({
+ start : start,
+ name : name,
+ func : function_(false),
+ end : prev()
+ }));
+ continue;
+ }
+ }
+ expect(":");
+ a.push(new AST_ObjectKeyVal({
+ start : start,
+ key : name,
+ value : expression(false),
+ end : prev()
+ }));
+ }
+ next();
+ return new AST_Object({ properties: a });
+ });
+
+ function as_property_name() {
+ switch (S.token.type) {
+ case "num":
+ case "string":
+ return as_symbol(true);
+ }
+ return as_name();
+ };
+
+ function as_name() {
+ switch (S.token.type) {
+ case "name":
+ case "operator":
+ case "keyword":
+ case "atom":
+ return as_symbol(true);
+ default:
+ unexpected();
+ }
+ };
+
+ function as_symbol(noerror) {
+ if (!noerror && !is("name")) croak("Name expected");
+ var sym = new AST_Symbol({
+ name : String(S.token.value),
+ start : S.token,
+ end : S.token
+ });
+ next();
+ return sym;
+ };
+
+ var subscripts = embed_tokens(function(expr, allow_calls) {
+ if (is("punc", ".")) {
+ next();
+ return subscripts(new AST_Dot({
+ expression : expr,
+ property : as_name()
+ }), allow_calls);
+ }
+ if (is("punc", "[")) {
+ next();
+ return subscripts(new AST_Sub({
+ expression : expr,
+ property : prog1(expression, curry(expect, "]"))
+ }), allow_calls);
+ }
+ if (allow_calls && is("punc", "(")) {
+ next();
+ return subscripts(new AST_Call({
+ expression : expr,
+ args : expr_list(")")
+ }), true);
+ }
+ return expr;
+ });
+
+ var maybe_unary = embed_tokens(function(allow_calls) {
+ if (is("operator") && HOP(UNARY_PREFIX, S.token.value)) {
+ return make_unary(AST_UnaryPrefix,
+ prog1(S.token.value, next),
+ maybe_unary(allow_calls));
+ }
+ var val = expr_atom(allow_calls);
+ while (is("operator") && HOP(UNARY_POSTFIX, S.token.value) && !S.token.nlb) {
+ val = make_unary(AST_UnaryPostfix, S.token.value, val);
+ next();
+ }
+ return val;
+ });
+
+ function make_unary(ctor, op, expr) {
+ if ((op == "++" || op == "--") && !is_assignable(expr))
+ croak("Invalid use of " + op + " operator");
+ return new ctor({ operator: op, expression: expr });
+ };
+
+ var expr_op = embed_tokens(function(left, min_prec, no_in) {
+ var op = is("operator") ? S.token.value : null;
+ if (op == "in" && no_in) op = null;
+ var prec = op != null ? PRECEDENCE[op] : null;
+ if (prec != null && prec > min_prec) {
+ next();
+ var right = expr_op(maybe_unary(true), prec, no_in);
+ return expr_op(new AST_Binary({
+ left : left,
+ operator : op,
+ right : right
+ }), min_prec, no_in);
+ }
+ return left;
+ });
+
+ function expr_ops(no_in) {
+ return expr_op(maybe_unary(true), 0, no_in);
+ };
+
+ var maybe_conditional = embed_tokens(function(no_in) {
+ var expr = expr_ops(no_in);
+ if (is("operator", "?")) {
+ next();
+ var yes = expression(false);
+ expect(":");
+ return new AST_Conditional({
+ condition: expr,
+ consequent: yes,
+ alternative: expression(false, no_in)
+ });
+ }
+ return expr;
+ });
+
+ function is_assignable(expr) {
+ if (!exigent_mode) return true;
+ switch (expr[0]+"") {
+ case "dot":
+ case "sub":
+ case "new":
+ case "call":
+ return true;
+ case "name":
+ return expr[1] != "this";
+ }
+ };
+
+ var maybe_assign = embed_tokens(function(no_in) {
+ var left = maybe_conditional(no_in), val = S.token.value;
+ if (is("operator") && HOP(ASSIGNMENT, val)) {
+ if (is_assignable(left)) {
+ next();
+ return new AST_Assign({
+ left : left,
+ operator : ASSIGNMENT[val],
+ right : maybe_assign(no_in)
+ });
+ }
+ croak("Invalid assignment");
+ }
+ return left;
+ });
+
+ var expression = embed_tokens(function(commas, no_in) {
+ if (arguments.length == 0)
+ commas = true;
+ var expr = maybe_assign(no_in);
+ if (commas && is("punc", ",")) {
+ next();
+ return new AST_Seq({
+ first : expr,
+ second : expression(true, no_in)
+ });
+ }
+ return expr;
+ });
+
+ function in_loop(cont) {
+ ++S.in_loop;
+ var ret = cont();
+ --S.in_loop;
+ return ret;
+ };
+
+ return new AST_Toplevel({
+ body: (function(a){
+ while (!is("eof"))
+ a.push(statement());
+ return a;
+ })([])
+ });
+
+};
+
+console.time("parse");
+var ast = parse(func.toString());
+console.timeEnd("parse");
+
+console.log(ast);
+
+
+
+ // var moo = 1, i, man = moo + bar;
+ // try {
+ // loop: while (/foobar/.test(bar)) {
+ // alert(bar);
+ // continue loop;
+ // }
+ // } finally {
+ // return crap;
+ // }
public / UglifyJS.git / commitdiff