- New parser written in PEGJS (http://http://pegjs.majda.cz/) which is faaaaast!

- Adapted jtalk.js Compiler.st and jtalkc accordingly

bin/jtalkc

@@ -122,7 +122,7 @@ fi
 # Define our predefined library combinations
 BOOT="boot"
 KERNEL="$BOOT Kernel"
-COMPILER="$KERNEL Parser Compiler"
+COMPILER="$KERNEL Parser parser Compiler"
 CANVAS="$COMPILER Canvas"
 IDE="$CANVAS JQuery IDE SUnit Examples"
 
@@ -306,6 +306,7 @@ cat $TOOURCOMPILER > $TMPDIR/compiler.js
 # Compile all collected .st files to .js
 echo "Loading libraries$TOOURCOMPILER and compiling ..."
 node $TMPDIR/compiler.js $DEPLOY $SUFFIX $COMPILE
+echo node $TMPDIR/compiler.js $DEPLOY $SUFFIX $COMPILE
 
 # Verify all .js files corresponding to .st files were created, otherwise exit
 IFS=" "

js/deploy.js

@@ -0,0 +1 @@
+smalltalk.setDeploymentMode()

js/jtalk.js

@@ -43,6 +43,7 @@
 	loadJS("JQuery.js");
 	loadJS("Parser.js");
 	loadJS("Compiler.js");
+	loadJS("parser.js");
 	loadJS("IDE.js");
 	loadJS("SUnit.js");
 	loadJS("Examples.js");

js/parser.js

@@ -0,0 +1,3724 @@
+smalltalk.parser = (function(){
+  /* Generated by PEG.js 0.6.2 (http://pegjs.majda.cz/). */
+  
+  var result = {
+    /*
+     * Parses the input with a generated parser. If the parsing is successfull,
+     * returns a value explicitly or implicitly specified by the grammar from
+     * which the parser was generated (see |PEG.buildParser|). If the parsing is
+     * unsuccessful, throws |PEG.parser.SyntaxError| describing the error.
+     */
+    parse: function(input, startRule) {
+      var parseFunctions = {
+        "assignment": parse_assignment,
+        "binaryMessage": parse_binaryMessage,
+        "binaryPattern": parse_binaryPattern,
+        "binarySelector": parse_binarySelector,
+        "binarySend": parse_binarySend,
+        "binaryTail": parse_binaryTail,
+        "block": parse_block,
+        "blockParamList": parse_blockParamList,
+        "cascade": parse_cascade,
+        "className": parse_className,
+        "classReference": parse_classReference,
+        "comments": parse_comments,
+        "expression": parse_expression,
+        "expressionList": parse_expressionList,
+        "expressions": parse_expressions,
+        "float": parse_float,
+        "identifier": parse_identifier,
+        "integer": parse_integer,
+        "jsStatement": parse_jsStatement,
+        "keyword": parse_keyword,
+        "keywordMessage": parse_keywordMessage,
+        "keywordPair": parse_keywordPair,
+        "keywordPattern": parse_keywordPattern,
+        "keywordSend": parse_keywordSend,
+        "literal": parse_literal,
+        "literalArray": parse_literalArray,
+        "message": parse_message,
+        "method": parse_method,
+        "number": parse_number,
+        "operand": parse_operand,
+        "reference": parse_reference,
+        "ret": parse_ret,
+        "separator": parse_separator,
+        "sequence": parse_sequence,
+        "statements": parse_statements,
+        "string": parse_string,
+        "subexpression": parse_subexpression,
+        "symbol": parse_symbol,
+        "temps": parse_temps,
+        "unaryMessage": parse_unaryMessage,
+        "unaryPattern": parse_unaryPattern,
+        "unarySend": parse_unarySend,
+        "unaryTail": parse_unaryTail,
+        "variable": parse_variable,
+        "ws": parse_ws
+      };
+      
+      if (startRule !== undefined) {
+        if (parseFunctions[startRule] === undefined) {
+          throw new Error("Invalid rule name: " + quote(startRule) + ".");
+        }
+      } else {
+        startRule = "method";
+      }
+      
+      var pos = 0;
+      var reportMatchFailures = true;
+      var rightmostMatchFailuresPos = 0;
+      var rightmostMatchFailuresExpected = [];
+      var cache = {};
+      
+      function padLeft(input, padding, length) {
+        var result = input;
+        
+        var padLength = length - input.length;
+        for (var i = 0; i < padLength; i++) {
+          result = padding + result;
+        }
+        
+        return result;
+      }
+      
+      function escape(ch) {
+        var charCode = ch.charCodeAt(0);
+        
+        if (charCode <= 0xFF) {
+          var escapeChar = 'x';
+          var length = 2;
+        } else {
+          var escapeChar = 'u';
+          var length = 4;
+        }
+        
+        return '\\' + escapeChar + padLeft(charCode.toString(16).toUpperCase(), '0', length);
+      }
+      
+      function quote(s) {
+        /*
+         * ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
+         * string literal except for the closing quote character, backslash,
+         * carriage return, line separator, paragraph separator, and line feed.
+         * Any character may appear in the form of an escape sequence.
+         */
+        return '"' + s
+          .replace(/\\/g, '\\\\')            // backslash
+          .replace(/"/g, '\\"')              // closing quote character
+          .replace(/\r/g, '\\r')             // carriage return
+          .replace(/\n/g, '\\n')             // line feed
+          .replace(/[\x80-\uFFFF]/g, escape) // non-ASCII characters
+          + '"';
+      }
+      
+      function matchFailed(failure) {
+        if (pos < rightmostMatchFailuresPos) {
+          return;
+        }
+        
+        if (pos > rightmostMatchFailuresPos) {
+          rightmostMatchFailuresPos = pos;
+          rightmostMatchFailuresExpected = [];
+        }
+        
+        rightmostMatchFailuresExpected.push(failure);
+      }
+      
+      function parse_separator() {
+        var cacheKey = 'separator@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        if (input.substr(pos).match(/^[ 	\xA0\uFEFF\n\r\u2028\u2029]/) !== null) {
+          var result1 = input.charAt(pos);
+          pos++;
+        } else {
+          var result1 = null;
+          if (reportMatchFailures) {
+            matchFailed("[ 	\\xA0\\uFEFF\\n\\r\\u2028\\u2029]");
+          }
+        }
+        if (result1 !== null) {
+          var result0 = [];
+          while (result1 !== null) {
+            result0.push(result1);
+            if (input.substr(pos).match(/^[ 	\xA0\uFEFF\n\r\u2028\u2029]/) !== null) {
+              var result1 = input.charAt(pos);
+              pos++;
+            } else {
+              var result1 = null;
+              if (reportMatchFailures) {
+                matchFailed("[ 	\\xA0\\uFEFF\\n\\r\\u2028\\u2029]");
+              }
+            }
+          }
+        } else {
+          var result0 = null;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_comments() {
+        var cacheKey = 'comments@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        if (input.substr(pos).match(/^["]/) !== null) {
+          var result2 = input.charAt(pos);
+          pos++;
+        } else {
+          var result2 = null;
+          if (reportMatchFailures) {
+            matchFailed("[\"]");
+          }
+        }
+        if (result2 !== null) {
+          var result3 = [];
+          if (input.substr(pos).match(/^[^"]/) !== null) {
+            var result5 = input.charAt(pos);
+            pos++;
+          } else {
+            var result5 = null;
+            if (reportMatchFailures) {
+              matchFailed("[^\"]");
+            }
+          }
+          while (result5 !== null) {
+            result3.push(result5);
+            if (input.substr(pos).match(/^[^"]/) !== null) {
+              var result5 = input.charAt(pos);
+              pos++;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("[^\"]");
+              }
+            }
+          }
+          if (result3 !== null) {
+            if (input.substr(pos).match(/^["]/) !== null) {
+              var result4 = input.charAt(pos);
+              pos++;
+            } else {
+              var result4 = null;
+              if (reportMatchFailures) {
+                matchFailed("[\"]");
+              }
+            }
+            if (result4 !== null) {
+              var result1 = [result2, result3, result4];
+            } else {
+              var result1 = null;
+              pos = savedPos0;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos0;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos0;
+        }
+        if (result1 !== null) {
+          var result0 = [];
+          while (result1 !== null) {
+            result0.push(result1);
+            var savedPos0 = pos;
+            if (input.substr(pos).match(/^["]/) !== null) {
+              var result2 = input.charAt(pos);
+              pos++;
+            } else {
+              var result2 = null;
+              if (reportMatchFailures) {
+                matchFailed("[\"]");
+              }
+            }
+            if (result2 !== null) {
+              var result3 = [];
+              if (input.substr(pos).match(/^[^"]/) !== null) {
+                var result5 = input.charAt(pos);
+                pos++;
+              } else {
+                var result5 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[^\"]");
+                }
+              }
+              while (result5 !== null) {
+                result3.push(result5);
+                if (input.substr(pos).match(/^[^"]/) !== null) {
+                  var result5 = input.charAt(pos);
+                  pos++;
+                } else {
+                  var result5 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("[^\"]");
+                  }
+                }
+              }
+              if (result3 !== null) {
+                if (input.substr(pos).match(/^["]/) !== null) {
+                  var result4 = input.charAt(pos);
+                  pos++;
+                } else {
+                  var result4 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("[\"]");
+                  }
+                }
+                if (result4 !== null) {
+                  var result1 = [result2, result3, result4];
+                } else {
+                  var result1 = null;
+                  pos = savedPos0;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos0;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos0;
+            }
+          }
+        } else {
+          var result0 = null;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_ws() {
+        var cacheKey = 'ws@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result0 = [];
+        var result3 = parse_separator();
+        if (result3 !== null) {
+          var result1 = result3;
+        } else {
+          var result2 = parse_comments();
+          if (result2 !== null) {
+            var result1 = result2;
+          } else {
+            var result1 = null;;
+          };
+        }
+        while (result1 !== null) {
+          result0.push(result1);
+          var result3 = parse_separator();
+          if (result3 !== null) {
+            var result1 = result3;
+          } else {
+            var result2 = parse_comments();
+            if (result2 !== null) {
+              var result1 = result2;
+            } else {
+              var result1 = null;;
+            };
+          }
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_identifier() {
+        var cacheKey = 'identifier@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos).match(/^[a-z]/) !== null) {
+          var result3 = input.charAt(pos);
+          pos++;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("[a-z]");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+            var result5 = input.charAt(pos);
+            pos++;
+          } else {
+            var result5 = null;
+            if (reportMatchFailures) {
+              matchFailed("[a-zA-Z0-9]");
+            }
+          }
+          while (result5 !== null) {
+            result4.push(result5);
+            if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+              var result5 = input.charAt(pos);
+              pos++;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("[a-zA-Z0-9]");
+              }
+            }
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(first, others) {return first + others.join("")})(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_keyword() {
+        var cacheKey = 'keyword@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_identifier();
+        if (result3 !== null) {
+          if (input.substr(pos).match(/^[:]/) !== null) {
+            var result4 = input.charAt(pos);
+            pos++;
+          } else {
+            var result4 = null;
+            if (reportMatchFailures) {
+              matchFailed("[:]");
+            }
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(first, last) {return first + last})(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_className() {
+        var cacheKey = 'className@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos).match(/^[A-Z]/) !== null) {
+          var result3 = input.charAt(pos);
+          pos++;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("[A-Z]");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+            var result5 = input.charAt(pos);
+            pos++;
+          } else {
+            var result5 = null;
+            if (reportMatchFailures) {
+              matchFailed("[a-zA-Z0-9]");
+            }
+          }
+          while (result5 !== null) {
+            result4.push(result5);
+            if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+              var result5 = input.charAt(pos);
+              pos++;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("[a-zA-Z0-9]");
+              }
+            }
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(first, others) {return first + others.join("")})(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_string() {
+        var cacheKey = 'string@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos).match(/^[']/) !== null) {
+          var result3 = input.charAt(pos);
+          pos++;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("[']");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          var savedPos2 = pos;
+          if (input.substr(pos, 2) === "''") {
+            var result9 = "''";
+            pos += 2;
+          } else {
+            var result9 = null;
+            if (reportMatchFailures) {
+              matchFailed("\"''\"");
+            }
+          }
+          var result10 = result9 !== null
+            ? (function() {return "'"})()
+            : null;
+          if (result10 !== null) {
+            var result8 = result10;
+          } else {
+            var result8 = null;
+            pos = savedPos2;
+          }
+          if (result8 !== null) {
+            var result6 = result8;
+          } else {
+            if (input.substr(pos).match(/^[^']/) !== null) {
+              var result7 = input.charAt(pos);
+              pos++;
+            } else {
+              var result7 = null;
+              if (reportMatchFailures) {
+                matchFailed("[^']");
+              }
+            }
+            if (result7 !== null) {
+              var result6 = result7;
+            } else {
+              var result6 = null;;
+            };
+          }
+          while (result6 !== null) {
+            result4.push(result6);
+            var savedPos2 = pos;
+            if (input.substr(pos, 2) === "''") {
+              var result9 = "''";
+              pos += 2;
+            } else {
+              var result9 = null;
+              if (reportMatchFailures) {
+                matchFailed("\"''\"");
+              }
+            }
+            var result10 = result9 !== null
+              ? (function() {return "'"})()
+              : null;
+            if (result10 !== null) {
+              var result8 = result10;
+            } else {
+              var result8 = null;
+              pos = savedPos2;
+            }
+            if (result8 !== null) {
+              var result6 = result8;
+            } else {
+              if (input.substr(pos).match(/^[^']/) !== null) {
+                var result7 = input.charAt(pos);
+                pos++;
+              } else {
+                var result7 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[^']");
+                }
+              }
+              if (result7 !== null) {
+                var result6 = result7;
+              } else {
+                var result6 = null;;
+              };
+            }
+          }
+          if (result4 !== null) {
+            if (input.substr(pos).match(/^[']/) !== null) {
+              var result5 = input.charAt(pos);
+              pos++;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("[']");
+              }
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(val) {
+                         	   return smalltalk.ValueNode._new()
+                         	   	._value_(val.join("").replace(/\"/ig, '"'))
+          	         })(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_symbol() {
+        var cacheKey = 'symbol@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "#") {
+          var result3 = "#";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"#\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+            var result5 = input.charAt(pos);
+            pos++;
+          } else {
+            var result5 = null;
+            if (reportMatchFailures) {
+              matchFailed("[a-zA-Z0-9]");
+            }
+          }
+          while (result5 !== null) {
+            result4.push(result5);
+            if (input.substr(pos).match(/^[a-zA-Z0-9]/) !== null) {
+              var result5 = input.charAt(pos);
+              pos++;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("[a-zA-Z0-9]");
+              }
+            }
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(val) {
+          		  return smalltalk.ValueNode._new()
+                         	   	._value_(val.join("").replace(/\"/ig, '"'))
+                         	 })(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_number() {
+        var cacheKey = 'number@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var result4 = parse_float();
+        if (result4 !== null) {
+          var result1 = result4;
+        } else {
+          var result3 = parse_integer();
+          if (result3 !== null) {
+            var result1 = result3;
+          } else {
+            var result1 = null;;
+          };
+        }
+        var result2 = result1 !== null
+          ? (function(n) {
+          		  return smalltalk.ValueNode._new()
+                         	   	._value_(n)
+                         	 })(result1)
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_float() {
+        var cacheKey = 'float@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos).match(/^[\-]/) !== null) {
+          var result7 = input.charAt(pos);
+          pos++;
+        } else {
+          var result7 = null;
+          if (reportMatchFailures) {
+            matchFailed("[\\-]");
+          }
+        }
+        var result3 = result7 !== null ? result7 : '';
+        if (result3 !== null) {
+          var result4 = parse_integer();
+          if (result4 !== null) {
+            if (input.substr(pos, 1) === ".") {
+              var result5 = ".";
+              pos += 1;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("\".\"");
+              }
+            }
+            if (result5 !== null) {
+              var result6 = parse_integer();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(neg, int, dec) {return parseFloat((neg+int+"."+dec), 10)})(result1[0], result1[1], result1[3])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_integer() {
+        var cacheKey = 'integer@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos).match(/^[\-]/) !== null) {
+          var result6 = input.charAt(pos);
+          pos++;
+        } else {
+          var result6 = null;
+          if (reportMatchFailures) {
+            matchFailed("[\\-]");
+          }
+        }
+        var result3 = result6 !== null ? result6 : '';
+        if (result3 !== null) {
+          if (input.substr(pos).match(/^[0-9]/) !== null) {
+            var result5 = input.charAt(pos);
+            pos++;
+          } else {
+            var result5 = null;
+            if (reportMatchFailures) {
+              matchFailed("[0-9]");
+            }
+          }
+          if (result5 !== null) {
+            var result4 = [];
+            while (result5 !== null) {
+              result4.push(result5);
+              if (input.substr(pos).match(/^[0-9]/) !== null) {
+                var result5 = input.charAt(pos);
+                pos++;
+              } else {
+                var result5 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[0-9]");
+                }
+              }
+            }
+          } else {
+            var result4 = null;
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(neg, digits) {return (parseInt(neg+digits, 10))})(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_literalArray() {
+        var cacheKey = 'literalArray@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 2) === "#(") {
+          var result3 = "#(";
+          pos += 2;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"#(\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result5 = [];
+            var savedPos2 = pos;
+            var savedPos3 = pos;
+            var result11 = parse_literal();
+            if (result11 !== null) {
+              var result12 = parse_ws();
+              if (result12 !== null) {
+                var result9 = [result11, result12];
+              } else {
+                var result9 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result9 = null;
+              pos = savedPos3;
+            }
+            var result10 = result9 !== null
+              ? (function(lit) {return lit._value()})(result9[0])
+              : null;
+            if (result10 !== null) {
+              var result8 = result10;
+            } else {
+              var result8 = null;
+              pos = savedPos2;
+            }
+            while (result8 !== null) {
+              result5.push(result8);
+              var savedPos2 = pos;
+              var savedPos3 = pos;
+              var result11 = parse_literal();
+              if (result11 !== null) {
+                var result12 = parse_ws();
+                if (result12 !== null) {
+                  var result9 = [result11, result12];
+                } else {
+                  var result9 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result9 = null;
+                pos = savedPos3;
+              }
+              var result10 = result9 !== null
+                ? (function(lit) {return lit._value()})(result9[0])
+                : null;
+              if (result10 !== null) {
+                var result8 = result10;
+              } else {
+                var result8 = null;
+                pos = savedPos2;
+              }
+            }
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                if (input.substr(pos, 1) === ")") {
+                  var result7 = ")";
+                  pos += 1;
+                } else {
+                  var result7 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("\")\"");
+                  }
+                }
+                if (result7 !== null) {
+                  var result1 = [result3, result4, result5, result6, result7];
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(lits) {
+          		  return smalltalk.ValueNode._new()
+                         	   	._value_(lits)
+                         	 })(result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_literal() {
+        var cacheKey = 'literal@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result5 = parse_number();
+        if (result5 !== null) {
+          var result0 = result5;
+        } else {
+          var result4 = parse_literalArray();
+          if (result4 !== null) {
+            var result0 = result4;
+          } else {
+            var result3 = parse_string();
+            if (result3 !== null) {
+              var result0 = result3;
+            } else {
+              var result2 = parse_symbol();
+              if (result2 !== null) {
+                var result0 = result2;
+              } else {
+                var result1 = parse_block();
+                if (result1 !== null) {
+                  var result0 = result1;
+                } else {
+                  var result0 = null;;
+                };
+              };
+            };
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_variable() {
+        var cacheKey = 'variable@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var result1 = parse_identifier();
+        var result2 = result1 !== null
+          ? (function(identifier) {
+          		  return smalltalk.VariableNode._new()
+          			._value_(identifier)
+          		  })(result1)
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_classReference() {
+        var cacheKey = 'classReference@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var result1 = parse_className();
+        var result2 = result1 !== null
+          ? (function(className) {
+          		  return smalltalk.ClassReferenceNode._new()
+          		  	._value_(className)
+          		  })(result1)
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_reference() {
+        var cacheKey = 'reference@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result2 = parse_variable();
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result1 = parse_classReference();
+          if (result1 !== null) {
+            var result0 = result1;
+          } else {
+            var result0 = null;;
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_keywordPair() {
+        var cacheKey = 'keywordPair@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_keyword();
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result5 = parse_binarySend();
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(key, arg) {return {key:key, arg: arg}})(result1[0], result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_binarySelector() {
+        var cacheKey = 'binarySelector@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        if (input.substr(pos).match(/^[+*\/=><,@%~|&\-]/) !== null) {
+          var result3 = input.charAt(pos);
+          pos++;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("[+*\\/=><,@%~|&\\-]");
+          }
+        }
+        if (result3 !== null) {
+          var result1 = [];
+          while (result3 !== null) {
+            result1.push(result3);
+            if (input.substr(pos).match(/^[+*\/=><,@%~|&\-]/) !== null) {
+              var result3 = input.charAt(pos);
+              pos++;
+            } else {
+              var result3 = null;
+              if (reportMatchFailures) {
+                matchFailed("[+*\\/=><,@%~|&\\-]");
+              }
+            }
+          }
+        } else {
+          var result1 = null;
+        }
+        var result2 = result1 !== null
+          ? (function(bin) {return bin.join("")})(result1)
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_keywordPattern() {
+        var cacheKey = 'keywordPattern@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var savedPos2 = pos;
+        var result6 = parse_ws();
+        if (result6 !== null) {
+          var result7 = parse_keyword();
+          if (result7 !== null) {
+            var result8 = parse_ws();
+            if (result8 !== null) {
+              var result9 = parse_identifier();
+              if (result9 !== null) {
+                var result4 = [result6, result7, result8, result9];
+              } else {
+                var result4 = null;
+                pos = savedPos2;
+              }
+            } else {
+              var result4 = null;
+              pos = savedPos2;
+            }
+          } else {
+            var result4 = null;
+            pos = savedPos2;
+          }
+        } else {
+          var result4 = null;
+          pos = savedPos2;
+        }
+        var result5 = result4 !== null
+          ? (function(key, arg) {return {key:key, arg: arg}})(result4[1], result4[3])
+          : null;
+        if (result5 !== null) {
+          var result3 = result5;
+        } else {
+          var result3 = null;
+          pos = savedPos1;
+        }
+        if (result3 !== null) {
+          var result1 = [];
+          while (result3 !== null) {
+            result1.push(result3);
+            var savedPos1 = pos;
+            var savedPos2 = pos;
+            var result6 = parse_ws();
+            if (result6 !== null) {
+              var result7 = parse_keyword();
+              if (result7 !== null) {
+                var result8 = parse_ws();
+                if (result8 !== null) {
+                  var result9 = parse_identifier();
+                  if (result9 !== null) {
+                    var result4 = [result6, result7, result8, result9];
+                  } else {
+                    var result4 = null;
+                    pos = savedPos2;
+                  }
+                } else {
+                  var result4 = null;
+                  pos = savedPos2;
+                }
+              } else {
+                var result4 = null;
+                pos = savedPos2;
+              }
+            } else {
+              var result4 = null;
+              pos = savedPos2;
+            }
+            var result5 = result4 !== null
+              ? (function(key, arg) {return {key:key, arg: arg}})(result4[1], result4[3])
+              : null;
+            if (result5 !== null) {
+              var result3 = result5;
+            } else {
+              var result3 = null;
+              pos = savedPos1;
+            }
+          }
+        } else {
+          var result1 = null;
+        }
+        var result2 = result1 !== null
+          ? (function(pairs) {
+          	             var keywords = [];
+                               var params = [];
+                               for(var i=0;i<pairs.length;i++){
+                                   keywords.push(pairs[i].key);
+                               }
+                               for(var i=0;i<pairs.length;i++){
+                                   params.push(pairs[i].arg);
+                               }
+          		     return [keywords.join(""), params]
+          	         })(result1)
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_binaryPattern() {
+        var cacheKey = 'binaryPattern@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result4 = parse_binarySelector();
+          if (result4 !== null) {
+            var result5 = parse_ws();
+            if (result5 !== null) {
+              var result6 = parse_identifier();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(selector, arg) {return [selector, [arg]]})(result1[1], result1[3])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_unaryPattern() {
+        var cacheKey = 'unaryPattern@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result4 = parse_identifier();
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(selector) {return [selector, []]})(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_expression() {
+        var cacheKey = 'expression@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result5 = parse_assignment();
+        if (result5 !== null) {
+          var result0 = result5;
+        } else {
+          var result4 = parse_cascade();
+          if (result4 !== null) {
+            var result0 = result4;
+          } else {
+            var result3 = parse_keywordSend();
+            if (result3 !== null) {
+              var result0 = result3;
+            } else {
+              var result2 = parse_binarySend();
+              if (result2 !== null) {
+                var result0 = result2;
+              } else {
+                var result1 = parse_jsStatement();
+                if (result1 !== null) {
+                  var result0 = result1;
+                } else {
+                  var result0 = null;;
+                };
+              };
+            };
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_expressionList() {
+        var cacheKey = 'expressionList@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          if (input.substr(pos, 1) === ".") {
+            var result4 = ".";
+            pos += 1;
+          } else {
+            var result4 = null;
+            if (reportMatchFailures) {
+              matchFailed("\".\"");
+            }
+          }
+          if (result4 !== null) {
+            var result5 = parse_ws();
+            if (result5 !== null) {
+              var result6 = parse_expression();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(expression) {return expression})(result1[3])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_expressions() {
+        var cacheKey = 'expressions@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_expression();
+        if (result3 !== null) {
+          var result4 = [];
+          var result5 = parse_expressionList();
+          while (result5 !== null) {
+            result4.push(result5);
+            var result5 = parse_expressionList();
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(first, others) {
+          	       	     var result = [first];
+          		     for(var i=0;i<others.length;i++) {
+          		 	 result.push(others[i]);
+          		     }
+          		     return result;
+          	       })(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_assignment() {
+        var cacheKey = 'assignment@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_variable();
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            if (input.substr(pos, 2) === ":=") {
+              var result5 = ":=";
+              pos += 2;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("\":=\"");
+              }
+            }
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                var result7 = parse_expression();
+                if (result7 !== null) {
+                  var result1 = [result3, result4, result5, result6, result7];
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(variable, expression) {
+          	       	     return smalltalk.AssignmentNode._new()
+          	       	     	._left_(variable)
+          	       	     	._right_(expression)
+          		 })(result1[0], result1[4])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_ret() {
+        var cacheKey = 'ret@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "^") {
+          var result3 = "^";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"^\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result5 = parse_expression();
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                if (input.substr(pos, 1) === ".") {
+                  var result8 = ".";
+                  pos += 1;
+                } else {
+                  var result8 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("\".\"");
+                  }
+                }
+                var result7 = result8 !== null ? result8 : '';
+                if (result7 !== null) {
+                  var result1 = [result3, result4, result5, result6, result7];
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(expression) {
+          	       	     return smalltalk.ReturnNode._new()
+          	       	     	._nodes_([expression])
+          	       })(result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_temps() {
+        var cacheKey = 'temps@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "|") {
+          var result3 = "|";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"|\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          var savedPos2 = pos;
+          var savedPos3 = pos;
+          var result9 = parse_ws();
+          if (result9 !== null) {
+            var result10 = parse_identifier();
+            if (result10 !== null) {
+              var result11 = parse_ws();
+              if (result11 !== null) {
+                var result7 = [result9, result10, result11];
+              } else {
+                var result7 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result7 = null;
+              pos = savedPos3;
+            }
+          } else {
+            var result7 = null;
+            pos = savedPos3;
+          }
+          var result8 = result7 !== null
+            ? (function(variable) {return variable})(result7[1])
+            : null;
+          if (result8 !== null) {
+            var result6 = result8;
+          } else {
+            var result6 = null;
+            pos = savedPos2;
+          }
+          while (result6 !== null) {
+            result4.push(result6);
+            var savedPos2 = pos;
+            var savedPos3 = pos;
+            var result9 = parse_ws();
+            if (result9 !== null) {
+              var result10 = parse_identifier();
+              if (result10 !== null) {
+                var result11 = parse_ws();
+                if (result11 !== null) {
+                  var result7 = [result9, result10, result11];
+                } else {
+                  var result7 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result7 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result7 = null;
+              pos = savedPos3;
+            }
+            var result8 = result7 !== null
+              ? (function(variable) {return variable})(result7[1])
+              : null;
+            if (result8 !== null) {
+              var result6 = result8;
+            } else {
+              var result6 = null;
+              pos = savedPos2;
+            }
+          }
+          if (result4 !== null) {
+            if (input.substr(pos, 1) === "|") {
+              var result5 = "|";
+              pos += 1;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("\"|\"");
+              }
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(vars) {return vars})(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_blockParamList() {
+        var cacheKey = 'blockParamList@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var savedPos2 = pos;
+        var savedPos3 = pos;
+        var result9 = parse_ws();
+        if (result9 !== null) {
+          if (input.substr(pos, 1) === ":") {
+            var result10 = ":";
+            pos += 1;
+          } else {
+            var result10 = null;
+            if (reportMatchFailures) {
+              matchFailed("\":\"");
+            }
+          }
+          if (result10 !== null) {
+            var result11 = parse_ws();
+            if (result11 !== null) {
+              var result12 = parse_identifier();
+              if (result12 !== null) {
+                var result7 = [result9, result10, result11, result12];
+              } else {
+                var result7 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result7 = null;
+              pos = savedPos3;
+            }
+          } else {
+            var result7 = null;
+            pos = savedPos3;
+          }
+        } else {
+          var result7 = null;
+          pos = savedPos3;
+        }
+        var result8 = result7 !== null
+          ? (function(param) {return param})(result7[3])
+          : null;
+        if (result8 !== null) {
+          var result6 = result8;
+        } else {
+          var result6 = null;
+          pos = savedPos2;
+        }
+        if (result6 !== null) {
+          var result3 = [];
+          while (result6 !== null) {
+            result3.push(result6);
+            var savedPos2 = pos;
+            var savedPos3 = pos;
+            var result9 = parse_ws();
+            if (result9 !== null) {
+              if (input.substr(pos, 1) === ":") {
+                var result10 = ":";
+                pos += 1;
+              } else {
+                var result10 = null;
+                if (reportMatchFailures) {
+                  matchFailed("\":\"");
+                }
+              }
+              if (result10 !== null) {
+                var result11 = parse_ws();
+                if (result11 !== null) {
+                  var result12 = parse_identifier();
+                  if (result12 !== null) {
+                    var result7 = [result9, result10, result11, result12];
+                  } else {
+                    var result7 = null;
+                    pos = savedPos3;
+                  }
+                } else {
+                  var result7 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result7 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result7 = null;
+              pos = savedPos3;
+            }
+            var result8 = result7 !== null
+              ? (function(param) {return param})(result7[3])
+              : null;
+            if (result8 !== null) {
+              var result6 = result8;
+            } else {
+              var result6 = null;
+              pos = savedPos2;
+            }
+          }
+        } else {
+          var result3 = null;
+        }
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            if (input.substr(pos, 1) === "|") {
+              var result5 = "|";
+              pos += 1;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("\"|\"");
+              }
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(params) {return params})(result1[0])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_subexpression() {
+        var cacheKey = 'subexpression@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "(") {
+          var result3 = "(";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"(\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result5 = parse_expression();
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                if (input.substr(pos, 1) === ")") {
+                  var result7 = ")";
+                  pos += 1;
+                } else {
+                  var result7 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("\")\"");
+                  }
+                }
+                if (result7 !== null) {
+                  var result1 = [result3, result4, result5, result6, result7];
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(expression) {return expression})(result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_statements() {
+        var cacheKey = 'statements@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos4 = pos;
+        var savedPos5 = pos;
+        var result22 = parse_ret();
+        if (result22 !== null) {
+          var result23 = [];
+          if (input.substr(pos).match(/^[.]/) !== null) {
+            var result24 = input.charAt(pos);
+            pos++;
+          } else {
+            var result24 = null;
+            if (reportMatchFailures) {
+              matchFailed("[.]");
+            }
+          }
+          while (result24 !== null) {
+            result23.push(result24);
+            if (input.substr(pos).match(/^[.]/) !== null) {
+              var result24 = input.charAt(pos);
+              pos++;
+            } else {
+              var result24 = null;
+              if (reportMatchFailures) {
+                matchFailed("[.]");
+              }
+            }
+          }
+          if (result23 !== null) {
+            var result20 = [result22, result23];
+          } else {
+            var result20 = null;
+            pos = savedPos5;
+          }
+        } else {
+          var result20 = null;
+          pos = savedPos5;
+        }
+        var result21 = result20 !== null
+          ? (function(ret) {return [ret]})(result20[0])
+          : null;
+        if (result21 !== null) {
+          var result19 = result21;
+        } else {
+          var result19 = null;
+          pos = savedPos4;
+        }
+        if (result19 !== null) {
+          var result0 = result19;
+        } else {
+          var savedPos2 = pos;
+          var savedPos3 = pos;
+          var result11 = parse_expressions();
+          if (result11 !== null) {
+            var result12 = parse_ws();
+            if (result12 !== null) {
+              if (input.substr(pos).match(/^[.]/) !== null) {
+                var result18 = input.charAt(pos);
+                pos++;
+              } else {
+                var result18 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[.]");
+                }
+              }
+              if (result18 !== null) {
+                var result13 = [];
+                while (result18 !== null) {
+                  result13.push(result18);
+                  if (input.substr(pos).match(/^[.]/) !== null) {
+                    var result18 = input.charAt(pos);
+                    pos++;
+                  } else {
+                    var result18 = null;
+                    if (reportMatchFailures) {
+                      matchFailed("[.]");
+                    }
+                  }
+                }
+              } else {
+                var result13 = null;
+              }
+              if (result13 !== null) {
+                var result14 = parse_ws();
+                if (result14 !== null) {
+                  var result15 = parse_ret();
+                  if (result15 !== null) {
+                    var result16 = [];
+                    if (input.substr(pos).match(/^[.]/) !== null) {
+                      var result17 = input.charAt(pos);
+                      pos++;
+                    } else {
+                      var result17 = null;
+                      if (reportMatchFailures) {
+                        matchFailed("[.]");
+                      }
+                    }
+                    while (result17 !== null) {
+                      result16.push(result17);
+                      if (input.substr(pos).match(/^[.]/) !== null) {
+                        var result17 = input.charAt(pos);
+                        pos++;
+                      } else {
+                        var result17 = null;
+                        if (reportMatchFailures) {
+                          matchFailed("[.]");
+                        }
+                      }
+                    }
+                    if (result16 !== null) {
+                      var result9 = [result11, result12, result13, result14, result15, result16];
+                    } else {
+                      var result9 = null;
+                      pos = savedPos3;
+                    }
+                  } else {
+                    var result9 = null;
+                    pos = savedPos3;
+                  }
+                } else {
+                  var result9 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result9 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result9 = null;
+              pos = savedPos3;
+            }
+          } else {
+            var result9 = null;
+            pos = savedPos3;
+          }
+          var result10 = result9 !== null
+            ? (function(exps, ret) {
+                  	      	  var expressions = exps;
+                  		  expressions.push(ret);
+                  		  return expressions
+              		})(result9[0], result9[4])
+            : null;
+          if (result10 !== null) {
+            var result8 = result10;
+          } else {
+            var result8 = null;
+            pos = savedPos2;
+          }
+          if (result8 !== null) {
+            var result0 = result8;
+          } else {
+            var savedPos0 = pos;
+            var savedPos1 = pos;
+            var result7 = parse_expressions();
+            var result4 = result7 !== null ? result7 : '';
+            if (result4 !== null) {
+              var result5 = [];
+              if (input.substr(pos).match(/^[.]/) !== null) {
+                var result6 = input.charAt(pos);
+                pos++;
+              } else {
+                var result6 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[.]");
+                }
+              }
+              while (result6 !== null) {
+                result5.push(result6);
+                if (input.substr(pos).match(/^[.]/) !== null) {
+                  var result6 = input.charAt(pos);
+                  pos++;
+                } else {
+                  var result6 = null;
+                  if (reportMatchFailures) {
+                    matchFailed("[.]");
+                  }
+                }
+              }
+              if (result5 !== null) {
+                var result2 = [result4, result5];
+              } else {
+                var result2 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result2 = null;
+              pos = savedPos1;
+            }
+            var result3 = result2 !== null
+              ? (function(expressions) {
+                    	          return expressions || []
+                	        })(result2[0])
+              : null;
+            if (result3 !== null) {
+              var result1 = result3;
+            } else {
+              var result1 = null;
+              pos = savedPos0;
+            }
+            if (result1 !== null) {
+              var result0 = result1;
+            } else {
+              var result0 = null;;
+            };
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_sequence() {
+        var cacheKey = 'sequence@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result8 = parse_temps();
+        var result3 = result8 !== null ? result8 : '';
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result7 = parse_statements();
+            var result5 = result7 !== null ? result7 : '';
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(temps, statements) {
+          	      	  return smalltalk.SequenceNode._new()
+          	      	  	._temps_(temps || [])
+          	      	  	._nodes_(statements || [])
+          		})(result1[0], result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_block() {
+        var cacheKey = 'block@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "[") {
+          var result3 = "[";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"[\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result11 = parse_blockParamList();
+            var result5 = result11 !== null ? result11 : '';
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                var result10 = parse_sequence();
+                var result7 = result10 !== null ? result10 : '';
+                if (result7 !== null) {
+                  var result8 = parse_ws();
+                  if (result8 !== null) {
+                    if (input.substr(pos, 1) === "]") {
+                      var result9 = "]";
+                      pos += 1;
+                    } else {
+                      var result9 = null;
+                      if (reportMatchFailures) {
+                        matchFailed("\"]\"");
+                      }
+                    }
+                    if (result9 !== null) {
+                      var result1 = [result3, result4, result5, result6, result7, result8, result9];
+                    } else {
+                      var result1 = null;
+                      pos = savedPos1;
+                    }
+                  } else {
+                    var result1 = null;
+                    pos = savedPos1;
+                  }
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(params, sequence) {
+          	          return smalltalk.BlockNode._new()
+          	          	._parameters_(params || [])
+          	          	._nodes_([sequence._asBlockSequenceNode()])
+          		})(result1[2], result1[4])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_operand() {
+        var cacheKey = 'operand@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result3 = parse_literal();
+        if (result3 !== null) {
+          var result0 = result3;
+        } else {
+          var result2 = parse_reference();
+          if (result2 !== null) {
+            var result0 = result2;
+          } else {
+            var result1 = parse_subexpression();
+            if (result1 !== null) {
+              var result0 = result1;
+            } else {
+              var result0 = null;;
+            };
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_unaryMessage() {
+        var cacheKey = 'unaryMessage@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result4 = parse_identifier();
+          if (result4 !== null) {
+            var savedPos2 = pos;
+            var savedReportMatchFailuresVar0 = reportMatchFailures;
+            reportMatchFailures = false;
+            if (input.substr(pos).match(/^[:]/) !== null) {
+              var result6 = input.charAt(pos);
+              pos++;
+            } else {
+              var result6 = null;
+              if (reportMatchFailures) {
+                matchFailed("[:]");
+              }
+            }
+            reportMatchFailures = savedReportMatchFailuresVar0;
+            if (result6 === null) {
+              var result5 = '';
+            } else {
+              var result5 = null;
+              pos = savedPos2;
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(selector) {
+          	      	return smalltalk.SendNode._new()
+          	      		._selector_(selector)
+          	      })(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_unaryTail() {
+        var cacheKey = 'unaryTail@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_unaryMessage();
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result7 = parse_unaryTail();
+            var result5 = result7 !== null ? result7 : '';
+            if (result5 !== null) {
+              var result6 = parse_ws();
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(message, tail) {
+          		  if(tail) {
+                    	      return tail._valueForReceiver_(message);
+                		  }
+                		  else {
+                    	      return message;
+                		  }
+            	      })(result1[0], result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_unarySend() {
+        var cacheKey = 'unarySend@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_operand();
+        if (result3 !== null) {
+          var result4 = parse_ws();
+          if (result4 !== null) {
+            var result6 = parse_unaryTail();
+            var result5 = result6 !== null ? result6 : '';
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(receiver, tail) {
+          		  if(tail) {
+                    	      return tail._valueForReceiver_(receiver);
+                		  }
+                		  else {
+                    	      return receiver;
+                		  }
+          	      })(result1[0], result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_binaryMessage() {
+        var cacheKey = 'binaryMessage@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result4 = parse_binarySelector();
+          if (result4 !== null) {
+            var result5 = parse_ws();
+            if (result5 !== null) {
+              var result8 = parse_unarySend();
+              if (result8 !== null) {
+                var result6 = result8;
+              } else {
+                var result7 = parse_operand();
+                if (result7 !== null) {
+                  var result6 = result7;
+                } else {
+                  var result6 = null;;
+                };
+              }
+              if (result6 !== null) {
+                var result1 = [result3, result4, result5, result6];
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(selector, arg) {
+          	          return smalltalk.SendNode._new()
+          	          	._selector_(selector)
+          	          	._arguments_([arg])
+          	      })(result1[1], result1[3])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_binaryTail() {
+        var cacheKey = 'binaryTail@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_binaryMessage();
+        if (result3 !== null) {
+          var result5 = parse_binaryTail();
+          var result4 = result5 !== null ? result5 : '';
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(message, tail) {
+                	          if(tail) {
+                    	      return tail._valueForReceiver_(message);
+                		  }
+                		  else {
+                    	      return message;
+                		  }
+            	      })(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_binarySend() {
+        var cacheKey = 'binarySend@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_unarySend();
+        if (result3 !== null) {
+          var result5 = parse_binaryTail();
+          var result4 = result5 !== null ? result5 : '';
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(receiver, tail) {
+          	      	  if(tail) {
+                    	      return tail._valueForReceiver_(receiver);
+                		  }
+                		  else {
+                    	      return receiver;
+                		  }
+          	      })(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_keywordMessage() {
+        var cacheKey = 'keywordMessage@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var savedPos2 = pos;
+          var savedPos3 = pos;
+          var result8 = parse_keywordPair();
+          if (result8 !== null) {
+            var result9 = parse_ws();
+            if (result9 !== null) {
+              var result6 = [result8, result9];
+            } else {
+              var result6 = null;
+              pos = savedPos3;
+            }
+          } else {
+            var result6 = null;
+            pos = savedPos3;
+          }
+          var result7 = result6 !== null
+            ? (function(pair) {return pair})(result6[0])
+            : null;
+          if (result7 !== null) {
+            var result5 = result7;
+          } else {
+            var result5 = null;
+            pos = savedPos2;
+          }
+          if (result5 !== null) {
+            var result4 = [];
+            while (result5 !== null) {
+              result4.push(result5);
+              var savedPos2 = pos;
+              var savedPos3 = pos;
+              var result8 = parse_keywordPair();
+              if (result8 !== null) {
+                var result9 = parse_ws();
+                if (result9 !== null) {
+                  var result6 = [result8, result9];
+                } else {
+                  var result6 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result6 = null;
+                pos = savedPos3;
+              }
+              var result7 = result6 !== null
+                ? (function(pair) {return pair})(result6[0])
+                : null;
+              if (result7 !== null) {
+                var result5 = result7;
+              } else {
+                var result5 = null;
+                pos = savedPos2;
+              }
+            }
+          } else {
+            var result4 = null;
+          }
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(pairs) {
+                		  var selector = [];
+                		  var args = [];
+                		  for(var i=0;i<pairs.length;i++) {
+                    	      selector.push(pairs[i].key);
+                    	      args.push(pairs[i].arg);
+                		  }
+                		  return smalltalk.SendNode._new()
+                		  	._selector_(selector.join(""))
+                		  	._arguments_(args)
+            	      })(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_keywordSend() {
+        var cacheKey = 'keywordSend@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_binarySend();
+        if (result3 !== null) {
+          var result4 = parse_keywordMessage();
+          if (result4 !== null) {
+            var result1 = [result3, result4];
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(receiver, tail) {
+          	          return tail._valueForReceiver_(receiver);
+          	      })(result1[0], result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_message() {
+        var cacheKey = 'message@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var result3 = parse_binaryMessage();
+        if (result3 !== null) {
+          var result0 = result3;
+        } else {
+          var result2 = parse_unaryMessage();
+          if (result2 !== null) {
+            var result0 = result2;
+          } else {
+            var result1 = parse_keywordMessage();
+            if (result1 !== null) {
+              var result0 = result1;
+            } else {
+              var result0 = null;;
+            };
+          };
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_cascade() {
+        var cacheKey = 'cascade@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result15 = parse_keywordSend();
+          if (result15 !== null) {
+            var result4 = result15;
+          } else {
+            var result14 = parse_binarySend();
+            if (result14 !== null) {
+              var result4 = result14;
+            } else {
+              var result4 = null;;
+            };
+          }
+          if (result4 !== null) {
+            var savedPos2 = pos;
+            var savedPos3 = pos;
+            var result9 = parse_ws();
+            if (result9 !== null) {
+              if (input.substr(pos, 1) === ";") {
+                var result10 = ";";
+                pos += 1;
+              } else {
+                var result10 = null;
+                if (reportMatchFailures) {
+                  matchFailed("\";\"");
+                }
+              }
+              if (result10 !== null) {
+                var result11 = parse_ws();
+                if (result11 !== null) {
+                  var result12 = parse_message();
+                  if (result12 !== null) {
+                    var result13 = parse_ws();
+                    if (result13 !== null) {
+                      var result7 = [result9, result10, result11, result12, result13];
+                    } else {
+                      var result7 = null;
+                      pos = savedPos3;
+                    }
+                  } else {
+                    var result7 = null;
+                    pos = savedPos3;
+                  }
+                } else {
+                  var result7 = null;
+                  pos = savedPos3;
+                }
+              } else {
+                var result7 = null;
+                pos = savedPos3;
+              }
+            } else {
+              var result7 = null;
+              pos = savedPos3;
+            }
+            var result8 = result7 !== null
+              ? (function(mess) {return mess})(result7[3])
+              : null;
+            if (result8 !== null) {
+              var result6 = result8;
+            } else {
+              var result6 = null;
+              pos = savedPos2;
+            }
+            if (result6 !== null) {
+              var result5 = [];
+              while (result6 !== null) {
+                result5.push(result6);
+                var savedPos2 = pos;
+                var savedPos3 = pos;
+                var result9 = parse_ws();
+                if (result9 !== null) {
+                  if (input.substr(pos, 1) === ";") {
+                    var result10 = ";";
+                    pos += 1;
+                  } else {
+                    var result10 = null;
+                    if (reportMatchFailures) {
+                      matchFailed("\";\"");
+                    }
+                  }
+                  if (result10 !== null) {
+                    var result11 = parse_ws();
+                    if (result11 !== null) {
+                      var result12 = parse_message();
+                      if (result12 !== null) {
+                        var result13 = parse_ws();
+                        if (result13 !== null) {
+                          var result7 = [result9, result10, result11, result12, result13];
+                        } else {
+                          var result7 = null;
+                          pos = savedPos3;
+                        }
+                      } else {
+                        var result7 = null;
+                        pos = savedPos3;
+                      }
+                    } else {
+                      var result7 = null;
+                      pos = savedPos3;
+                    }
+                  } else {
+                    var result7 = null;
+                    pos = savedPos3;
+                  }
+                } else {
+                  var result7 = null;
+                  pos = savedPos3;
+                }
+                var result8 = result7 !== null
+                  ? (function(mess) {return mess})(result7[3])
+                  : null;
+                if (result8 !== null) {
+                  var result6 = result8;
+                } else {
+                  var result6 = null;
+                  pos = savedPos2;
+                }
+              }
+            } else {
+              var result5 = null;
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(send, messages) {
+          		var cascade = [];
+                		cascade.push(send);
+                		for(var i=0;i<messages.length;i++) {
+                    		cascade.push(messages[i]);
+                		}
+                		return smalltalk.CascadeNode._new()
+                    	       ._receiver_(send._receiver())
+                    	       ._nodes_(cascade)
+            	      })(result1[1], result1[2])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_jsStatement() {
+        var cacheKey = 'jsStatement@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        if (input.substr(pos, 1) === "<") {
+          var result3 = "<";
+          pos += 1;
+        } else {
+          var result3 = null;
+          if (reportMatchFailures) {
+            matchFailed("\"<\"");
+          }
+        }
+        if (result3 !== null) {
+          var result4 = [];
+          var savedPos2 = pos;
+          if (input.substr(pos, 2) === ">>") {
+            var result9 = ">>";
+            pos += 2;
+          } else {
+            var result9 = null;
+            if (reportMatchFailures) {
+              matchFailed("\">>\"");
+            }
+          }
+          var result10 = result9 !== null
+            ? (function() {return ">"})()
+            : null;
+          if (result10 !== null) {
+            var result8 = result10;
+          } else {
+            var result8 = null;
+            pos = savedPos2;
+          }
+          if (result8 !== null) {
+            var result6 = result8;
+          } else {
+            if (input.substr(pos).match(/^[^>]/) !== null) {
+              var result7 = input.charAt(pos);
+              pos++;
+            } else {
+              var result7 = null;
+              if (reportMatchFailures) {
+                matchFailed("[^>]");
+              }
+            }
+            if (result7 !== null) {
+              var result6 = result7;
+            } else {
+              var result6 = null;;
+            };
+          }
+          while (result6 !== null) {
+            result4.push(result6);
+            var savedPos2 = pos;
+            if (input.substr(pos, 2) === ">>") {
+              var result9 = ">>";
+              pos += 2;
+            } else {
+              var result9 = null;
+              if (reportMatchFailures) {
+                matchFailed("\">>\"");
+              }
+            }
+            var result10 = result9 !== null
+              ? (function() {return ">"})()
+              : null;
+            if (result10 !== null) {
+              var result8 = result10;
+            } else {
+              var result8 = null;
+              pos = savedPos2;
+            }
+            if (result8 !== null) {
+              var result6 = result8;
+            } else {
+              if (input.substr(pos).match(/^[^>]/) !== null) {
+                var result7 = input.charAt(pos);
+                pos++;
+              } else {
+                var result7 = null;
+                if (reportMatchFailures) {
+                  matchFailed("[^>]");
+                }
+              }
+              if (result7 !== null) {
+                var result6 = result7;
+              } else {
+                var result6 = null;;
+              };
+            }
+          }
+          if (result4 !== null) {
+            if (input.substr(pos, 1) === ">") {
+              var result5 = ">";
+              pos += 1;
+            } else {
+              var result5 = null;
+              if (reportMatchFailures) {
+                matchFailed("\">\"");
+              }
+            }
+            if (result5 !== null) {
+              var result1 = [result3, result4, result5];
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(val) {
+          		return smalltalk.JSStatementNode._new()
+          			._source_(val.join(""))
+            	      })(result1[1])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function parse_method() {
+        var cacheKey = 'method@' + pos;
+        var cachedResult = cache[cacheKey];
+        if (cachedResult) {
+          pos = cachedResult.nextPos;
+          return cachedResult.result;
+        }
+        
+        
+        var savedPos0 = pos;
+        var savedPos1 = pos;
+        var result3 = parse_ws();
+        if (result3 !== null) {
+          var result11 = parse_keywordPattern();
+          if (result11 !== null) {
+            var result4 = result11;
+          } else {
+            var result10 = parse_binaryPattern();
+            if (result10 !== null) {
+              var result4 = result10;
+            } else {
+              var result9 = parse_unaryPattern();
+              if (result9 !== null) {
+                var result4 = result9;
+              } else {
+                var result4 = null;;
+              };
+            };
+          }
+          if (result4 !== null) {
+            var result5 = parse_ws();
+            if (result5 !== null) {
+              var result8 = parse_sequence();
+              var result6 = result8 !== null ? result8 : '';
+              if (result6 !== null) {
+                var result7 = parse_ws();
+                if (result7 !== null) {
+                  var result1 = [result3, result4, result5, result6, result7];
+                } else {
+                  var result1 = null;
+                  pos = savedPos1;
+                }
+              } else {
+                var result1 = null;
+                pos = savedPos1;
+              }
+            } else {
+              var result1 = null;
+              pos = savedPos1;
+            }
+          } else {
+            var result1 = null;
+            pos = savedPos1;
+          }
+        } else {
+          var result1 = null;
+          pos = savedPos1;
+        }
+        var result2 = result1 !== null
+          ? (function(pattern, sequence) {
+          	      	return smalltalk.MethodNode._new()
+          		       ._selector_(pattern[0])
+          		       ._arguments_(pattern[1])
+          		       ._nodes_([sequence])
+          	      })(result1[1], result1[3])
+          : null;
+        if (result2 !== null) {
+          var result0 = result2;
+        } else {
+          var result0 = null;
+          pos = savedPos0;
+        }
+        
+        
+        
+        cache[cacheKey] = {
+          nextPos: pos,
+          result:  result0
+        };
+        return result0;
+      }
+      
+      function buildErrorMessage() {
+        function buildExpected(failuresExpected) {
+          failuresExpected.sort();
+          
+          var lastFailure = null;
+          var failuresExpectedUnique = [];
+          for (var i = 0; i < failuresExpected.length; i++) {
+            if (failuresExpected[i] !== lastFailure) {
+              failuresExpectedUnique.push(failuresExpected[i]);
+              lastFailure = failuresExpected[i];
+            }
+          }
+          
+          switch (failuresExpectedUnique.length) {
+            case 0:
+              return 'end of input';
+            case 1:
+              return failuresExpectedUnique[0];
+            default:
+              return failuresExpectedUnique.slice(0, failuresExpectedUnique.length - 1).join(', ')
+                + ' or '
+                + failuresExpectedUnique[failuresExpectedUnique.length - 1];
+          }
+        }
+        
+        var expected = buildExpected(rightmostMatchFailuresExpected);
+        var actualPos = Math.max(pos, rightmostMatchFailuresPos);
+        var actual = actualPos < input.length
+          ? quote(input.charAt(actualPos))
+          : 'end of input';
+        
+        return 'Expected ' + expected + ' but ' + actual + ' found.';
+      }
+      
+      function computeErrorPosition() {
+        /*
+         * The first idea was to use |String.split| to break the input up to the
+         * error position along newlines and derive the line and column from
+         * there. However IE's |split| implementation is so broken that it was
+         * enough to prevent it.
+         */
+        
+        var line = 1;
+        var column = 1;
+        var seenCR = false;
+        
+        for (var i = 0; i <  rightmostMatchFailuresPos; i++) {
+          var ch = input.charAt(i);
+          if (ch === '\n') {
+            if (!seenCR) { line++; }
+            column = 1;
+            seenCR = false;
+          } else if (ch === '\r' | ch === '\u2028' || ch === '\u2029') {
+            line++;
+            column = 1;
+            seenCR = true;
+          } else {
+            column++;
+            seenCR = false;
+          }
+        }
+        
+        return { line: line, column: column };
+      }
+      
+      
+      
+      var result = parseFunctions[startRule]();
+      
+      /*
+       * The parser is now in one of the following three states:
+       *
+       * 1. The parser successfully parsed the whole input.
+       *
+       *    - |result !== null|
+       *    - |pos === input.length|
+       *    - |rightmostMatchFailuresExpected| may or may not contain something
+       *
+       * 2. The parser successfully parsed only a part of the input.
+       *
+       *    - |result !== null|
+       *    - |pos < input.length|
+       *    - |rightmostMatchFailuresExpected| may or may not contain something
+       *
+       * 3. The parser did not successfully parse any part of the input.
+       *
+       *   - |result === null|
+       *   - |pos === 0|
+       *   - |rightmostMatchFailuresExpected| contains at least one failure
+       *
+       * All code following this comment (including called functions) must
+       * handle these states.
+       */
+      if (result === null || pos !== input.length) {
+        var errorPosition = computeErrorPosition();
+        throw new this.SyntaxError(
+          buildErrorMessage(),
+          errorPosition.line,
+          errorPosition.column
+        );
+      }
+      
+      return result;
+    },
+    
+    /* Returns the parser source code. */
+    toSource: function() { return this._source; }
+  };
+  
+  /* Thrown when a parser encounters a syntax error. */
+  
+  result.SyntaxError = function(message, line, column) {
+    this.name = 'SyntaxError';
+    this.message = message;
+    this.line = line;
+    this.column = column;
+  };
+  
+  result.SyntaxError.prototype = Error.prototype;
+  
+  return result;
+})();

js/parser.pegjs

@@ -0,0 +1,205 @@
+start = method
+
+separator      = [ \t\v\f\u00A0\uFEFF\n\r\u2028\u2029]+
+comments       = (["][^"]*["])+
+ws             = (separator / comments)*
+identifier     = first:[a-z] others:[a-zA-Z0-9]* {return first + others.join("")}
+keyword        = first:identifier last:[:] {return first + last}
+className      = first:[A-Z] others:[a-zA-Z0-9]* {return first + others.join("")}
+string         = ['] val:(("''" {return "'"} / [^'])*) ['] {
+               	   return smalltalk.ValueNode._new()
+               	   	._value_(val.join("").replace(/\"/ig, '"'))
+	         }
+
+symbol         = "#"val:[a-zA-Z0-9]* {
+		  return smalltalk.ValueNode._new()
+               	   	._value_(val.join("").replace(/\"/ig, '"'))
+               	 }
+number         = n:(float / integer) {
+		  return smalltalk.ValueNode._new()
+               	   	._value_(n)
+               	 }
+float          = neg:[-]?int:integer "." dec:integer {return parseFloat((neg+int+"."+dec), 10)}
+integer        = neg:[-]?digits:[0-9]+ {return (parseInt(neg+digits, 10))}
+literalArray   = "#(" ws lits:(lit:literal ws {return lit._value()})* ws ")" {
+		  return smalltalk.ValueNode._new()
+               	   	._value_(lits)
+               	 }
+literal        = number / literalArray / string / symbol / block
+
+
+variable       = identifier:identifier {
+		  return smalltalk.VariableNode._new()
+			._value_(identifier)
+		  }
+classReference = className:className {
+		  return smalltalk.ClassReferenceNode._new()
+		  	._value_(className)
+		  }
+reference      = variable / classReference
+
+keywordPair    = key:keyword ws arg:binarySend ws {return {key:key, arg: arg}}
+
+binarySelector = bin:[+*/=><,@%~|&-]+ {return bin.join("")}
+unarySelector  = identifier
+
+keywordPattern = pairs:(ws key:keyword ws arg:identifier {return {key:key, arg: arg}})+ {
+	             var keywords = [];
+                     var params = [];
+                     for(var i=0;i<pairs.length;i++){
+                         keywords.push(pairs[i].key);
+                     }
+                     for(var i=0;i<pairs.length;i++){
+                         params.push(pairs[i].arg);
+                     }
+		     return [keywords.join(""), params]
+	         }
+binaryPattern  = ws selector:binarySelector ws arg:identifier {return [selector, [arg]]}
+unaryPattern   = ws selector:unarySelector {return [selector, []]}
+
+expression     = assignment / cascade / keywordSend / binarySend / jsStatement
+
+expressionList = ws "." ws expression:expression {return expression}
+expressions    = first:expression others:expressionList* {
+	       	     var result = [first];
+		     for(var i=0;i<others.length;i++) {
+		 	 result.push(others[i]);
+		     }
+		     return result;
+	       } 
+
+assignment     = variable:variable ws ':=' ws expression:expression {
+	       	     return smalltalk.AssignmentNode._new()
+	       	     	._left_(variable)
+	       	     	._right_(expression)
+		 }
+
+ret            = '^' ws expression:expression ws '.'? {
+	       	     return smalltalk.ReturnNode._new()
+	       	     	._nodes_([expression])
+	       }
+  
+temps          = "|" vars:(ws variable:identifier ws {return variable})* "|" {return vars}
+
+blockParamList = params:((ws ":" ws param:identifier {return param})+) ws "|" {return params}
+
+subexpression  = '(' ws expression:expression ws ')' {return expression}
+
+statements    = ret:ret [.]* {return [ret]}
+  	      / exps:expressions ws [.]+ ws ret:ret [.]* {
+      	      	  var expressions = exps;
+      		  expressions.push(ret);
+      		  return expressions
+  		}
+  	      / expressions:expressions? [.]* {
+      	          return expressions || []
+  	        }
+
+sequence      = temps:temps? ws statements:statements? ws {
+	      	  return smalltalk.SequenceNode._new()
+	      	  	._temps_(temps || [])
+	      	  	._nodes_(statements || [])
+		}
+
+block         = '[' ws params:blockParamList? ws sequence:sequence? ws ']' {
+	          return smalltalk.BlockNode._new()
+	          	._parameters_(params || [])
+	          	._nodes_([sequence._asBlockSequenceNode()])
+		}
+
+operand       = literal / reference / subexpression
+
+
+
+unaryMessage  = ws selector:unarySelector ![:] {
+	      	return smalltalk.SendNode._new()
+	      		._selector_(selector)
+	      }
+
+unaryTail     = message:unaryMessage ws tail:unaryTail? ws {
+		  if(tail) {
+          	      return tail._valueForReceiver_(message);
+      		  }
+      		  else {
+          	      return message;
+      		  }
+  	      }
+
+unarySend     = receiver:operand ws tail:unaryTail? {
+		  if(tail) {
+          	      return tail._valueForReceiver_(receiver);
+      		  }
+      		  else {
+          	      return receiver;
+      		  }
+	      }
+
+binaryMessage = ws selector:binarySelector ws arg:(unarySend / operand) {
+	          return smalltalk.SendNode._new()
+	          	._selector_(selector)
+	          	._arguments_([arg])
+	      }
+
+binaryTail    = message:binaryMessage tail:binaryTail? {
+      	          if(tail) {
+          	      return tail._valueForReceiver_(message);
+      		  }
+      		  else {
+          	      return message;
+      		  }
+  	      }
+
+binarySend    = receiver:unarySend tail:binaryTail? {
+	      	  if(tail) {
+          	      return tail._valueForReceiver_(receiver);
+      		  }
+      		  else {
+          	      return receiver;
+      		  }
+	      }
+	      
+
+keywordMessage = ws pairs:(pair:keywordPair ws {return pair})+ {
+      		  var selector = [];
+      		  var args = [];
+      		  for(var i=0;i<pairs.length;i++) {
+          	      selector.push(pairs[i].key);
+          	      args.push(pairs[i].arg);
+      		  }
+      		  return smalltalk.SendNode._new()
+      		  	._selector_(selector.join(""))
+      		  	._arguments_(args)
+  	      }
+
+keywordSend   = receiver:binarySend tail:keywordMessage {
+	          return tail._valueForReceiver_(receiver);
+	      }
+
+message       = binaryMessage / unaryMessage / keywordMessage
+
+cascade       = ws send:(keywordSend / binarySend) messages:(ws ";" ws mess:message ws {return mess})+ 
+  	      {
+		var cascade = [];
+      		cascade.push(send);
+      		for(var i=0;i<messages.length;i++) {
+          		cascade.push(messages[i]);
+      		}
+      		return smalltalk.CascadeNode._new()
+          	       ._receiver_(send._receiver())
+          	       ._nodes_(cascade)
+  	      }
+
+jsStatement   = "<" val:((">>" {return ">"} / [^>])*) ">"
+  	      {
+		return smalltalk.JSStatementNode._new()
+			._source_(val.join(""))
+  	      }
+
+
+method        = ws pattern:(keywordPattern / binaryPattern / unaryPattern) ws sequence:sequence? ws {
+	      	return smalltalk.MethodNode._new()
+		       ._selector_(pattern[0])
+		       ._arguments_(pattern[1])
+		       ._nodes_([sequence])
+	      }
+

st/Compiler.st

@@ -412,7 +412,7 @@ visitJSStatementNode: aNode
 ! !
 
 NodeVisitor subclass: #Compiler
-	instanceVariableNames: 'stream nestedBlocks earlyReturn currentClass currentSelector unknownVariables tempVariables messageSends referencedClasses classReferenced'
+	instanceVariableNames: 'stream nestedBlocks earlyReturn currentClass currentSelector unknownVariables tempVariables messageSends referencedClasses classReferenced source'
 	category: 'Compiler'!
 
 !Compiler methodsFor: 'accessing'!
@@ -454,13 +454,24 @@ classNameFor: aClass
 		aClass isNil
 		    ifTrue: ['nil']
 		    ifFalse: [aClass name]]
+!
+
+source
+	^source ifNil: ['']
+!
+
+source: aString
+	source := aString
 ! !
 
 !Compiler methodsFor: 'compiling'!
 
 loadExpression: aString
+	| result |
 	DoIt addCompiledMethod: (self eval: (self compileExpression: aString)).
-	^DoIt new doIt
+	result := DoIt new doIt.
+	DoIt removeCompiledMethod: (DoIt methodDictionary at: #doIt).
+	^result
 !
 
 load: aString forClass: aClass
@@ -472,12 +483,14 @@ load: aString forClass: aClass
 
 compile: aString forClass: aClass
 	self currentClass: aClass.
+	self source: aString.
 	^self compile: aString
 !
 
 compileExpression: aString
 	self currentClass: DoIt.
-	^self compileNode: (self parseExpression: aString)
+	self source: 'doIt ^[', aString, '] value'.
+	^self compileNode: (self parse: self source)
 !
 
 eval: aString
@@ -495,7 +508,7 @@ compileNode: aNode
 !
 
 parse: aString
-    ^self parser parse: aString readStream
+    ^Smalltalk current parse: aString
 !
 
 parseExpression: aString
@@ -540,7 +553,7 @@ checkClass: aClassName for: receiver
 inlineLiteral: aSelector receiverNode: anObject argumentNodes: aCollection
         | inlined |
         inlined := false.
-
+ 
 	"-- BlockClosures --"
 
 	(aSelector = 'whileTrue:') ifTrue: [
@@ -747,7 +760,7 @@ inline: aSelector receiver: receiver argumentNodes: aCollection
                 self visit: aCollection first.
                 inlined := true].
 
-	(aSelector = '>') ifTrue: [
+	(aSelector = '>') ifTrue: [ 
                 self checkClass: 'Number' for: receiver.
                 stream nextPutAll: '$receiver >'.
                 self visit: aCollection first.
@@ -810,7 +823,7 @@ visitMethodNode: aNode
 	stream 
 	    nextPutAll: 'smalltalk.method({'; lf;
 	    nextPutAll: 'selector: "', aNode selector, '",'; lf.
-	stream nextPutAll: 'source: unescape("', aNode source escaped, '"),';lf.
+	stream nextPutAll: 'source: unescape("', self source escaped, '"),';lf.
 	stream nextPutAll: 'fn: function('.
 	aNode arguments 
 	    do: [:each | 
@@ -1033,6 +1046,6 @@ Object subclass: #DoIt
 
 !DoIt methodsFor: ''!
 
-doIt ^[a < 3] value
+
 ! !