Add CompilationError.fromLocationData

lib/coffee-script/coffee-script.js

@@ -169,11 +169,10 @@
   parser.yy = require('./nodes');
 
   parser.yy.parseError = function(message, _arg) {
-    var first_column, first_line, last_column, last_line, token, _ref;
+    var token;
     token = _arg.token;
     message = "unexpected " + token;
-    _ref = parser.lexer.yylloc, first_line = _ref.first_line, first_column = _ref.first_column, last_line = _ref.last_line, last_column = _ref.last_column;
+    throw CompilerError.fromLocationData(message, parser.lexer.yylloc);
-    throw new CompilerError(message, first_line, first_column, last_line, last_column);
   };
 
 }).call(this);

lib/coffee-script/error.js

@@ -23,6 +23,12 @@
       }
     }
 
+    CompilerError.fromLocationData = function(message, _arg) {
+      var first_column, first_line, last_column, last_line;
+      first_line = _arg.first_line, first_column = _arg.first_column, last_line = _arg.last_line, last_column = _arg.last_column;
+      return new CompilerError(message, first_line, first_column, last_line, last_column);
+    };
+
     CompilerError.prototype.prettyMessage = function(fileName, code) {
       var errorLength, errorLine, marker, message;
       message = "" + fileName + ":" + (this.startLine + 1) + ":" + (this.startColumn + 1) + ": error: " + this.message;

lib/coffee-script/nodes.js

@@ -199,9 +199,7 @@
     };
 
     Base.prototype.error = function(message) {
-      var first_column, first_line, last_column, last_line, _ref2;
+      throw CompilerError.fromLocationData(message, this.locationData);
-      _ref2 = this.locationData, first_line = _ref2.first_line, first_column = _ref2.first_column, last_line = _ref2.last_line, last_column = _ref2.last_column;
-      throw new CompilerError(message, first_line, first_column, last_line, last_column);
     };
 
     return Base;

src/coffee-script.coffee

@@ -140,10 +140,8 @@ parser.yy = require './nodes'
 parser.yy.parseError = (message, {token}) ->
   # Disregard Jison's message, it contains redundant line numer information.
   message = "unexpected #{token}"
-
   # The second argument has a `loc` property, which should have the location
   # data for this token. Unfortunately, Jison seems to send an outdated `loc`
   # (from the previous token), so we take the location information directly
   # from the lexer.
-  {first_line, first_column, last_line, last_column} = parser.lexer.yylloc
+  throw CompilerError.fromLocationData message, parser.lexer.yylloc
-  throw new CompilerError message, first_line, first_column, last_line, last_column

src/error.coffee

@@ -10,6 +10,10 @@ exports.CompilerError = class CompilerError extends Error
     # Add a stack trace in V8.
     Error.captureStackTrace? @, CompilerError
 
+  # Creates a CompilerError from a given locationData.
+  @fromLocationData = (message, {first_line, first_column, last_line, last_column}) ->
+    new CompilerError message, first_line, first_column, last_line, last_column
+
   # Creates a nice error message like, following the "standard" format
   # <filename>:<line>:<col>: <message> plus the line with the error and a marker
   # showing where the error is.

src/helpers.coffee

@@ -13,7 +13,7 @@ exports.ends = (string, literal, back) ->
 
 # Repeat a string `n` times.
 exports.repeat = (str, n) ->
-  # Use clever algorithm to have O(lon(n)) string concatenation operations
+  # Use clever algorithm to have O(log(n)) string concatenation operations.
   res = ''
   while n > 0
     res += str if n & 1

src/nodes.coffee

@@ -163,8 +163,7 @@ exports.Base = class Base
 
   # Throw a compiler error associated with this node's location.
   error: (message) ->
-    {first_line, first_column, last_line, last_column} = @locationData
+    throw CompilerError.fromLocationData message, @locationData
-    throw new CompilerError message, first_line, first_column, last_line, last_column
 
 #### Block