mirror of
https://github.com/jashkenas/coffeescript.git
synced 2022-11-09 12:23:24 -05:00
merging in matehat's curry branch. cleaning some loose ends up. adding some tests.
This commit is contained in:
Jeremy Ashkenas
parent
1f87094628
commit
0c6ee52cfc
10 changed files with 33 additions and 49 deletions
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@ -272,7 +272,7 @@
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return $2.new_instance();
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}), o("Super")
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],
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Curry: [o("Value CURRY Arguments", function() {
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Curry: [o("Value <- Arguments", function() {
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return new CurryNode($1, $3);
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})
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],
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@ -611,7 +611,7 @@
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// 2 + (3 * 4)
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// And not:
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// (2 + 3) * 4
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operators = [["left", '?'], ["nonassoc", 'UMINUS', 'UPLUS', 'NOT', '!', '!!', '~', '++', '--'], ["left", '*', '/', '%'], ["left", '+', '-'], ["left", '<<', '>>', '>>>'], ["left", '&', '|', '^'], ["left", '<=', '<', '>', '>='], ["right", 'DELETE', 'INSTANCEOF', 'TYPEOF'], ["left", '==', '!=', 'IS', 'ISNT'], ["left", '&&', '||', 'AND', 'OR'], ["right", '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?='], ["left", '.'], ["right", 'INDENT'], ["left", 'OUTDENT'], ["right", 'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW'], ["right", 'FOR', 'NEW', 'SUPER', 'CLASS'], ["left", 'EXTENDS'], ["right", 'ASSIGN', 'RETURN'], ["right", '->', '=>', 'UNLESS', 'IF', 'ELSE', 'WHILE']];
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operators = [["left", '?'], ["nonassoc", 'UMINUS', 'UPLUS', 'NOT', '!', '!!', '~', '++', '--'], ["left", '*', '/', '%'], ["left", '+', '-'], ["left", '<<', '>>', '>>>'], ["left", '&', '|', '^'], ["left", '<=', '<', '>', '>='], ["right", 'DELETE', 'INSTANCEOF', 'TYPEOF'], ["left", '==', '!=', 'IS', 'ISNT'], ["left", '&&', '||', 'AND', 'OR'], ["right", '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?='], ["left", '.'], ["right", 'INDENT'], ["left", 'OUTDENT'], ["right", 'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW'], ["right", 'FOR', 'NEW', 'SUPER', 'CLASS'], ["left", 'EXTENDS'], ["right", 'ASSIGN', 'RETURN'], ["right", '->', '=>', '<-', 'UNLESS', 'IF', 'ELSE', 'WHILE']];
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// Wrapping Up
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// -----------
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// Finally, now what we have our **grammar** and our **operators**, we can create
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16
lib/lexer.js
16
lib/lexer.js
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@ -1,5 +1,5 @@
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(function(){
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var ACCESSORS, ASSIGNMENT, BEFORE_WHEN, CALLABLE, CODE, COFFEE_KEYWORDS, COMMENT, COMMENT_CLEANER, CURRY, CURRY_SEPARATOR, HEREDOC, HEREDOC_INDENT, IDENTIFIER, INTERPOLATION, JS_CLEANER, JS_FORBIDDEN, JS_KEYWORDS, KEYWORDS, LAST_DENT, LAST_DENTS, Lexer, MULTILINER, MULTI_DENT, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_ESCAPE, REGEX_FLAGS, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, STRING_NEWLINES, WHITESPACE, balanced_string, compact, count, helpers, include, starts;
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var ACCESSORS, ASSIGNMENT, BEFORE_WHEN, CALLABLE, CODE, COFFEE_KEYWORDS, COMMENT, COMMENT_CLEANER, HEREDOC, HEREDOC_INDENT, IDENTIFIER, INTERPOLATION, JS_CLEANER, JS_FORBIDDEN, JS_KEYWORDS, KEYWORDS, LAST_DENT, LAST_DENTS, Lexer, MULTILINER, MULTI_DENT, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_ESCAPE, REGEX_FLAGS, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, STRING_NEWLINES, WHITESPACE, balanced_string, compact, count, helpers, include, starts;
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// The CoffeeScript Lexer. Uses a series of token-matching regexes to attempt
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// matches against the beginning of the source code. When a match is found,
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// a token is produced, we consume the match, and start again. Tokens are in the
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@ -95,9 +95,6 @@
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if (this.js_token()) {
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return null;
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}
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if (this.curry_token()) {
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return null;
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}
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if (this.string_token()) {
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return null;
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}
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@ -327,15 +324,6 @@
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}
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return true;
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};
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// Here we detect the currying operator and change local state in order to
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// parse subsequent tokens accordingly.
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Lexer.prototype.curry_token = function curry_token() {
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if (this.match(CURRY, 1)) {
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this.i += 2;
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this.token('CURRY', '<-');
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return true;
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}
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};
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// We treat all other single characters as a token. Eg.: `( ) , . !`
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// Multi-character operators are also literal tokens, so that Jison can assign
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// the proper order of operations. There are some symbols that we tag specially
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@ -597,8 +585,6 @@
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LAST_DENTS = /\n([ \t]*)/g;
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LAST_DENT = /\n([ \t]*)/;
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ASSIGNMENT = /^(:|=)$/;
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CURRY = /^(<-)/;
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CURRY_SEPARATOR = /^\,/;
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// Regex-matching-regexes.
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REGEX_START = /^\/[^\/ ]/;
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REGEX_INTERPOLATION = /([^\\]\$[a-zA-Z_@]|[^\\]\$\{.*[^\\]\})/;
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@ -525,7 +525,7 @@
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};
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CurryNode.prototype.compile_node = function compile_node(o) {
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var body, curried, curry;
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body = Expressions.wrap([literal('func.apply(obj || {}, args.concat(Array.prototype.slice.call(arguments, 0)));')]);
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body = Expressions.wrap([literal('func.apply(obj, args.concat(Array.prototype.slice.call(arguments, 0)));')]);
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curried = new CodeNode([], body);
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curry = new CodeNode([literal('func'), literal('obj'), literal('args')], Expressions.wrap([curried]));
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return (new ParentheticalNode(new CallNode(curry, [this.meth, this.context, literal(this.arguments(o))]))).compile(o);
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@ -2,8 +2,8 @@
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var parser = (function(){
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var parser = {trace: function trace() { },
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yy: {},
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symbols_: {"Root":2,"TERMINATOR":3,"Expressions":4,"Block":5,"Expression":6,"Value":7,"Call":8,"Curry":9,"Code":10,"Operation":11,"Assign":12,"If":13,"Try":14,"Throw":15,"Return":16,"While":17,"For":18,"Switch":19,"Extends":20,"Class":21,"Splat":22,"Existence":23,"Comment":24,"Extension":25,"INDENT":26,"OUTDENT":27,"Identifier":28,"IDENTIFIER":29,"AlphaNumeric":30,"NUMBER":31,"STRING":32,"Literal":33,"JS":34,"REGEX":35,"BREAK":36,"CONTINUE":37,"TRUE":38,"FALSE":39,"YES":40,"NO":41,"ON":42,"OFF":43,"ASSIGN":44,"AssignObj":45,"RETURN":46,"COMMENT":47,"?":48,"PARAM_START":49,"ParamList":50,"PARAM_END":51,"FuncGlyph":52,"->":53,"=>":54,"Param":55,",":56,"PARAM":57,".":58,"Array":59,"Object":60,"Parenthetical":61,"Range":62,"This":63,"Accessor":64,"Invocation":65,"PROPERTY_ACCESS":66,"PROTOTYPE_ACCESS":67,"::":68,"SOAK_ACCESS":69,"Index":70,"Slice":71,"INDEX_START":72,"INDEX_END":73,"SOAKED_INDEX_START":74,"SOAKED_INDEX_END":75,"{":76,"AssignList":77,"}":78,"IndentedAssignList":79,"CLASS":80,"EXTENDS":81,"NEW":82,"Super":83,"CURRY":84,"Arguments":85,"CALL_START":86,"ArgList":87,"CALL_END":88,"SUPER":89,"@":90,"[":91,"]":92,"SimpleArgs":93,"TRY":94,"Catch":95,"FINALLY":96,"CATCH":97,"THROW":98,"(":99,")":100,"EXTENSION":101,"WhileSource":102,"WHILE":103,"WHEN":104,"FOR":105,"ForVariables":106,"ForSource":107,"IN":108,"OF":109,"BY":110,"SWITCH":111,"Whens":112,"ELSE":113,"When":114,"LEADING_WHEN":115,"IfStart":116,"IF":117,"ElsIf":118,"IfBlock":119,"UNLESS":120,"!":121,"!!":122,"-":123,"+":124,"NOT":125,"~":126,"--":127,"++":128,"DELETE":129,"TYPEOF":130,"*":131,"/":132,"%":133,"<<":134,">>":135,">>>":136,"&":137,"|":138,"^":139,"<=":140,"<":141,">":142,">=":143,"==":144,"!=":145,"IS":146,"ISNT":147,"&&":148,"||":149,"AND":150,"OR":151,"-=":152,"+=":153,"/=":154,"*=":155,"%=":156,"||=":157,"&&=":158,"?=":159,"INSTANCEOF":160,"$accept":0,"$end":1},
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terminals_: {"3":"TERMINATOR","26":"INDENT","27":"OUTDENT","29":"IDENTIFIER","31":"NUMBER","32":"STRING","34":"JS","35":"REGEX","36":"BREAK","37":"CONTINUE","38":"TRUE","39":"FALSE","40":"YES","41":"NO","42":"ON","43":"OFF","44":"ASSIGN","46":"RETURN","47":"COMMENT","48":"?","49":"PARAM_START","51":"PARAM_END","53":"->","54":"=>","56":",","57":"PARAM","58":".","66":"PROPERTY_ACCESS","67":"PROTOTYPE_ACCESS","68":"::","69":"SOAK_ACCESS","72":"INDEX_START","73":"INDEX_END","74":"SOAKED_INDEX_START","75":"SOAKED_INDEX_END","76":"{","78":"}","80":"CLASS","81":"EXTENDS","82":"NEW","84":"CURRY","86":"CALL_START","88":"CALL_END","89":"SUPER","90":"@","91":"[","92":"]","94":"TRY","96":"FINALLY","97":"CATCH","98":"THROW","99":"(","100":")","101":"EXTENSION","103":"WHILE","104":"WHEN","105":"FOR","108":"IN","109":"OF","110":"BY","111":"SWITCH","113":"ELSE","115":"LEADING_WHEN","117":"IF","120":"UNLESS","121":"!","122":"!!","123":"-","124":"+","125":"NOT","126":"~","127":"--","128":"++","129":"DELETE","130":"TYPEOF","131":"*","132":"/","133":"%","134":"<<","135":">>","136":">>>","137":"&","138":"|","139":"^","140":"<=","141":"<","142":">","143":">=","144":"==","145":"!=","146":"IS","147":"ISNT","148":"&&","149":"||","150":"AND","151":"OR","152":"-=","153":"+=","154":"/=","155":"*=","156":"%=","157":"||=","158":"&&=","159":"?=","160":"INSTANCEOF"},
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symbols_: {"Root":2,"TERMINATOR":3,"Expressions":4,"Block":5,"Expression":6,"Value":7,"Call":8,"Curry":9,"Code":10,"Operation":11,"Assign":12,"If":13,"Try":14,"Throw":15,"Return":16,"While":17,"For":18,"Switch":19,"Extends":20,"Class":21,"Splat":22,"Existence":23,"Comment":24,"Extension":25,"INDENT":26,"OUTDENT":27,"Identifier":28,"IDENTIFIER":29,"AlphaNumeric":30,"NUMBER":31,"STRING":32,"Literal":33,"JS":34,"REGEX":35,"BREAK":36,"CONTINUE":37,"TRUE":38,"FALSE":39,"YES":40,"NO":41,"ON":42,"OFF":43,"ASSIGN":44,"AssignObj":45,"RETURN":46,"COMMENT":47,"?":48,"PARAM_START":49,"ParamList":50,"PARAM_END":51,"FuncGlyph":52,"->":53,"=>":54,"Param":55,",":56,"PARAM":57,".":58,"Array":59,"Object":60,"Parenthetical":61,"Range":62,"This":63,"Accessor":64,"Invocation":65,"PROPERTY_ACCESS":66,"PROTOTYPE_ACCESS":67,"::":68,"SOAK_ACCESS":69,"Index":70,"Slice":71,"INDEX_START":72,"INDEX_END":73,"SOAKED_INDEX_START":74,"SOAKED_INDEX_END":75,"{":76,"AssignList":77,"}":78,"IndentedAssignList":79,"CLASS":80,"EXTENDS":81,"NEW":82,"Super":83,"<-":84,"Arguments":85,"CALL_START":86,"ArgList":87,"CALL_END":88,"SUPER":89,"@":90,"[":91,"]":92,"SimpleArgs":93,"TRY":94,"Catch":95,"FINALLY":96,"CATCH":97,"THROW":98,"(":99,")":100,"EXTENSION":101,"WhileSource":102,"WHILE":103,"WHEN":104,"FOR":105,"ForVariables":106,"ForSource":107,"IN":108,"OF":109,"BY":110,"SWITCH":111,"Whens":112,"ELSE":113,"When":114,"LEADING_WHEN":115,"IfStart":116,"IF":117,"ElsIf":118,"IfBlock":119,"UNLESS":120,"!":121,"!!":122,"-":123,"+":124,"NOT":125,"~":126,"--":127,"++":128,"DELETE":129,"TYPEOF":130,"*":131,"/":132,"%":133,"<<":134,">>":135,">>>":136,"&":137,"|":138,"^":139,"<=":140,"<":141,">":142,">=":143,"==":144,"!=":145,"IS":146,"ISNT":147,"&&":148,"||":149,"AND":150,"OR":151,"-=":152,"+=":153,"/=":154,"*=":155,"%=":156,"||=":157,"&&=":158,"?=":159,"INSTANCEOF":160,"$accept":0,"$end":1},
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terminals_: {"3":"TERMINATOR","26":"INDENT","27":"OUTDENT","29":"IDENTIFIER","31":"NUMBER","32":"STRING","34":"JS","35":"REGEX","36":"BREAK","37":"CONTINUE","38":"TRUE","39":"FALSE","40":"YES","41":"NO","42":"ON","43":"OFF","44":"ASSIGN","46":"RETURN","47":"COMMENT","48":"?","49":"PARAM_START","51":"PARAM_END","53":"->","54":"=>","56":",","57":"PARAM","58":".","66":"PROPERTY_ACCESS","67":"PROTOTYPE_ACCESS","68":"::","69":"SOAK_ACCESS","72":"INDEX_START","73":"INDEX_END","74":"SOAKED_INDEX_START","75":"SOAKED_INDEX_END","76":"{","78":"}","80":"CLASS","81":"EXTENDS","82":"NEW","84":"<-","86":"CALL_START","88":"CALL_END","89":"SUPER","90":"@","91":"[","92":"]","94":"TRY","96":"FINALLY","97":"CATCH","98":"THROW","99":"(","100":")","101":"EXTENSION","103":"WHILE","104":"WHEN","105":"FOR","108":"IN","109":"OF","110":"BY","111":"SWITCH","113":"ELSE","115":"LEADING_WHEN","117":"IF","120":"UNLESS","121":"!","122":"!!","123":"-","124":"+","125":"NOT","126":"~","127":"--","128":"++","129":"DELETE","130":"TYPEOF","131":"*","132":"/","133":"%","134":"<<","135":">>","136":">>>","137":"&","138":"|","139":"^","140":"<=","141":"<","142":">","143":">=","144":"==","145":"!=","146":"IS","147":"ISNT","148":"&&","149":"||","150":"AND","151":"OR","152":"-=","153":"+=","154":"/=","155":"*=","156":"%=","157":"||=","158":"&&=","159":"?=","160":"INSTANCEOF"},
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productions_: [0,[2,0],[2,1],[2,1],[2,2],[4,1],[4,3],[4,2],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[6,1],[5,3],[5,2],[5,2],[28,1],[30,1],[30,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[33,1],[12,3],[45,3],[45,3],[45,1],[16,2],[16,1],[24,1],[23,2],[10,5],[10,2],[52,1],[52,1],[50,0],[50,1],[50,3],[55,1],[55,4],[22,4],[7,1],[7,1],[7,1],[7,1],[7,1],[7,1],[7,1],[7,2],[7,2],[64,2],[64,2],[64,1],[64,2],[64,1],[64,1],[70,3],[70,3],[60,3],[60,3],[21,2],[21,4],[21,3],[21,5],[77,0],[77,1],[77,3],[77,3],[77,4],[79,3],[8,1],[8,2],[8,1],[9,3],[20,3],[65,2],[65,2],[85,3],[83,4],[63,1],[63,2],[62,6],[62,7],[71,6],[71,7],[59,3],[87,0],[87,1],[87,2],[87,3],[87,3],[87,4],[87,4],[87,2],[93,1],[93,3],[14,3],[14,4],[14,5],[95,3],[15,2],[61,3],[25,1],[102,2],[102,4],[17,2],[17,2],[18,4],[18,4],[106,1],[106,3],[107,2],[107,2],[107,3],[107,3],[19,5],[19,7],[112,1],[112,2],[114,3],[114,4],[114,3],[116,3],[116,2],[119,1],[119,3],[118,4],[13,1],[13,3],[13,3],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,2],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3],[11,3]],
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performAction: function anonymous(yytext,yyleng,yylineno,yy) {
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@ -384,7 +384,7 @@
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// Tokens that indicate the close of a clause of an expression.
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EXPRESSION_CLOSE = ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_END);
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// Tokens that, if followed by an `IMPLICIT_CALL`, indicate a function invocation.
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IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', 'CURRY'];
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IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '<-'];
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// If preceded by an `IMPLICIT_FUNC`, indicates a function invocation.
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IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'TRY', 'DELETE', 'TYPEOF', 'SWITCH', 'EXTENSION', 'TRUE', 'FALSE', 'YES', 'NO', 'ON', 'OFF', '!', '!!', 'NOT', '@', '->', '=>', '[', '(', '{'];
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// Tokens indicating that the implicit call must enclose a block of expressions.
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@ -265,7 +265,7 @@ grammar: {
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]
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Curry: [
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o "Value CURRY Arguments", -> new CurryNode $1, $3
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o "Value <- Arguments", -> new CurryNode $1, $3
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]
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# Extending an object by setting its prototype chain to reference a parent
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@ -549,7 +549,7 @@ operators: [
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["right", 'FOR', 'NEW', 'SUPER', 'CLASS']
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["left", 'EXTENDS']
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["right", 'ASSIGN', 'RETURN']
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["right", '->', '=>', 'UNLESS', 'IF', 'ELSE', 'WHILE']
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["right", '->', '=>', '<-', 'UNLESS', 'IF', 'ELSE', 'WHILE']
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]
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# Wrapping Up
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@ -72,7 +72,6 @@ exports.Lexer: class Lexer
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return if @line_token()
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return if @whitespace_token()
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return if @js_token()
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return if @curry_token()
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return if @string_token()
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return @literal_token()
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@ -241,14 +240,6 @@ exports.Lexer: class Lexer
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@tokens.pop() if @value() is "\\"
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true
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# Here we detect the currying operator and change local state in order to
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# parse subsequent tokens accordingly.
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curry_token: ->
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if @match(CURRY, 1)
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@i += 2
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@token 'CURRY', '<-'
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true
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# We treat all other single characters as a token. Eg.: `( ) , . !`
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# Multi-character operators are also literal tokens, so that Jison can assign
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# the proper order of operations. There are some symbols that we tag specially
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@ -472,8 +463,6 @@ MULTI_DENT : /^((\n([ \t]*))+)(\.)?/
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LAST_DENTS : /\n([ \t]*)/g
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LAST_DENT : /\n([ \t]*)/
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ASSIGNMENT : /^(:|=)$/
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CURRY : /^(<-)/
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CURRY_SEPARATOR: /^\,/
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# Regex-matching-regexes.
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REGEX_START : /^\/[^\/ ]/
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@ -403,7 +403,7 @@ exports.CurryNode: class CurryNode extends CallNode
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(new ArrayNode(@args)).compile o
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compile_node: (o) ->
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body: Expressions.wrap([literal('func.apply(obj || {}, args.concat(Array.prototype.slice.call(arguments, 0)));')])
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body: Expressions.wrap([literal('func.apply(obj, args.concat(Array.prototype.slice.call(arguments, 0)));')])
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curried: new CodeNode([], body)
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curry: new CodeNode([literal('func'), literal('obj'), literal('args')], Expressions.wrap([curried]))
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(new ParentheticalNode(new CallNode(curry, [@meth, @context, literal(@arguments(o))]))).compile o
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|
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@ -257,7 +257,7 @@ EXPRESSION_END: pair[1] for pair in BALANCED_PAIRS
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EXPRESSION_CLOSE: ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat EXPRESSION_END
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# Tokens that, if followed by an `IMPLICIT_CALL`, indicate a function invocation.
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IMPLICIT_FUNC: ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', 'CURRY']
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IMPLICIT_FUNC: ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '<-']
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# If preceded by an `IMPLICIT_FUNC`, indicates a function invocation.
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IMPLICIT_CALL: ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START',
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|
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@ -1,11 +1,20 @@
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f: (x,y,z) ->
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x*y*z*((@num or 4) + 5)
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x * y * z * ((@num or 4) + 5)
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obj: {num: 5}
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g: f <- obj, 1,1
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h: f <- {}, 1,2
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i: f <- obj
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ok g(2) is 20
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ok h(2) is 36
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ok i(1,2,3) is 60
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func: f <- obj, 1, 1
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ok func(2) is 20
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func: f <- {}, 1, 2
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ok func(2) is 36
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func: f <- obj
|
||||
ok func(1, 2, 3) is 60
|
||||
|
||||
in_first_ten: helpers.include <- null, [0...10]
|
||||
|
||||
ok in_first_ten 3
|
||||
ok in_first_ten 9
|
||||
ok not in_first_ten -1
|
||||
ok not in_first_ten 12
|
||||
Loading…
Add table
Reference in a new issue