cocorobolx/blockly/generators/python.js

/**
 * @license
 * Visual Blocks Language
 *
 * Copyright 2012 Google Inc.
 * https://developers.google.com/blockly/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @fileoverview Helper functions for generating Python for blocks.
 * @author fraser@google.com (Neil Fraser)
 */
'use strict';

goog.provide('Blockly.Python');

goog.require('Blockly.Generator');

//Blockly.Python.StaticTyping = new Blockly.StaticTyping();

/**
 * Python code generator.
 * @type {!Blockly.Generator}
 */
//Blockly.Python = new Blockly.Generator('Python');

/**
 * List of illegal variable names.
 * This is not intended to be a security feature.  Blockly is 100% client-side,
 * so bypassing this list is trivial.  This is intended to prevent users from
 * accidentally clobbering a built-in object or function.
 * @private
 */
Blockly.Python.addReservedWords(
  // import keyword
  // print ','.join(keyword.kwlist)
  // http://docs.python.org/reference/lexical_analysis.html#keywords
  'and,as,assert,break,class,continue,def,del,elif,else,except,exec,' +
  'finally,for,from,global,if,import,in,is,lambda,not,or,pass,print,raise,' +
  'return,try,while,with,yield,' +
  //http://docs.python.org/library/constants.html
  'True,False,None,NotImplemented,Ellipsis,__debug__,quit,exit,copyright,license,credits,' +
  // Reserved libraries
  //'crime,stocks,earthquakes,books,weather,plt,math,'+
  // http://docs.python.org/library/functions.html
  ''
  //'abs,divmod,input,open,staticmethod,all,enumerate,int,ord,str,any,eval,isinstance,pow,sum,basestring,execfile,issubclass,print,super,bin,file,iter,property,tuple,bool,filter,len,range,type,bytearray,float,list,raw_input,unichr,callable,format,locals,reduce,unicode,chr,frozenset,long,reload,vars,classmethod,getattr,map,repr,xrange,cmp,globals,max,reversed,zip,compile,hasattr,memoryview,round,__import__,complex,hash,min,set,apply,delattr,help,next,setattr,buffer,dict,hex,object,slice,coerce,dir,id,oct,sorted,intern'
);

/**
 * Order of operation ENUMs.
 * http://docs.python.org/reference/expressions.html#summary
 */
Blockly.Python.ORDER_ATOMIC = 0;            // 0 "" ...
Blockly.Python.ORDER_COLLECTION = 1;        // tuples, lists, dictionaries
Blockly.Python.ORDER_STRING_CONVERSION = 1; // `expression...`
Blockly.Python.ORDER_MEMBER = 2.1;          // . []
Blockly.Python.ORDER_FUNCTION_CALL = 2.2;   // ()
Blockly.Python.ORDER_EXPONENTIATION = 3;    // **
Blockly.Python.ORDER_UNARY_SIGN = 4;        // + -
Blockly.Python.ORDER_BITWISE_NOT = 4;       // ~
Blockly.Python.ORDER_MULTIPLICATIVE = 5;    // * / // %
Blockly.Python.ORDER_ADDITIVE = 6;          // + -
Blockly.Python.ORDER_BITWISE_SHIFT = 7;     // << >>
Blockly.Python.ORDER_BITWISE_AND = 8;       // &
Blockly.Python.ORDER_BITWISE_XOR = 9;       // ^
Blockly.Python.ORDER_BITWISE_OR = 10;       // |
Blockly.Python.ORDER_RELATIONAL = 11;       // in, not in, is, is not,
//     <, <=, >, >=, <>, !=, ==
Blockly.Python.ORDER_LOGICAL_NOT = 12;      // not
Blockly.Python.ORDER_LOGICAL_AND = 13;      // and
Blockly.Python.ORDER_LOGICAL_OR = 14;       // or
Blockly.Python.ORDER_CONDITIONAL = 15;      // if else
Blockly.Python.ORDER_LAMBDA = 16;           // lambda
Blockly.Python.ORDER_NONE = 99;             // (...)

/**
 * Empty loops or conditionals are not allowed in Python.
 */
Blockly.Python.PASS = '    pass\n';

/*
 * Allow for switching between one and zero based indexing for lists and text,
 * one based by default.
 */
Blockly.Python.ONE_BASED_INDEXING = false;

/**
 * List of outer-inner pairings that do NOT require parentheses.
 * @type {!Array.<!Array.<number>>}
 */
Blockly.Python.ORDER_OVERRIDES = [
  // (foo()).bar -> foo().bar
  // (foo())[0] -> foo()[0]
  [Blockly.Python.ORDER_FUNCTION_CALL, Blockly.Python.ORDER_MEMBER],
  // (foo())() -> foo()()
  [Blockly.Python.ORDER_FUNCTION_CALL, Blockly.Python.ORDER_FUNCTION_CALL],
  // (foo.bar).baz -> foo.bar.baz
  // (foo.bar)[0] -> foo.bar[0]
  // (foo[0]).bar -> foo[0].bar
  // (foo[0])[1] -> foo[0][1]
  [Blockly.Python.ORDER_MEMBER, Blockly.Python.ORDER_MEMBER],
  // (foo.bar)() -> foo.bar()
  // (foo[0])() -> foo[0]()
  [Blockly.Python.ORDER_MEMBER, Blockly.Python.ORDER_FUNCTION_CALL],

  // not (not foo) -> not not foo
  [Blockly.Python.ORDER_LOGICAL_NOT, Blockly.Python.ORDER_LOGICAL_NOT],
  // a and (b and c) -> a and b and c
  [Blockly.Python.ORDER_LOGICAL_AND, Blockly.Python.ORDER_LOGICAL_AND],
  // a or (b or c) -> a or b or c
  [Blockly.Python.ORDER_LOGICAL_OR, Blockly.Python.ORDER_LOGICAL_OR]
];

/**
 * Initialise the database of variable names.
 * @param {!Blockly.Workspace} workspace Workspace to generate code from.
 */
Blockly.Python.init = function (workspace) {
  /**
   * Empty loops or conditionals are not allowed in Python.
   */
  Blockly.Python.PASS = this.INDENT + 'pass\n';
  // Create a dictionary of definitions to be printed before the code.
  Blockly.Python.definitions_ = Object.create(null);
  // Create a dictionary mapping desired function names in definitions_
  // to actual function names (to avoid collisions with user functions).
  Blockly.Python.functionNames_ = Object.create(null);

  if (!Blockly.Python.variableDB_) {
    Blockly.Python.variableDB_ =
      new Blockly.Names(Blockly.Python.RESERVED_WORDS_);
  } else {
    Blockly.Python.variableDB_.reset();
  }

  // Removed, because we shouldn't teach students to do this.
  /*
  var defvars = [];
  var variables = workspace.variableList;
  for (var i = 0; i < variables.length; i++) {
    defvars[i] = Blockly.Python.variableDB_.getName(variables[i],
        Blockly.Variables.NAME_TYPE) + ' = None';
  }
  Blockly.Python.definitions_['variables'] = defvars.join('\n');*/
};

/**
 * Prepend the generated code with the variable definitions.
 * @param {string} code Generated code.
 * @return {string} Completed code.
 */
Blockly.Python.finish = function (code) {
  // Convert the definitions dictionary into a list.
  var imports = [];
  var definitions = [];
  for (var name in Blockly.Python.definitions_) {
    var def = Blockly.Python.definitions_[name];
    if (def.match(/^(from\s+\S+\s+)?import\s+\S+/)) {
      imports.push(def);
    } else {
      definitions.push(def);
    }
  }
  // Clean up temporary data.
  delete Blockly.Python.definitions_;
  delete Blockly.Python.functionNames_;
  Blockly.Python.variableDB_.reset();
  var allDefs = imports.join('\n') + '\n\n' + definitions.join('\n\n');
  return allDefs.replace(/\n\n+/g, '\n\n').replace(/\n*$/, '\n\n\n') + code;
};

/**
 * Naked values are top-level blocks with outputs that aren't plugged into
 * anything.
 * @param {string} line Line of generated code.
 * @return {string} Legal line of code.
 */
Blockly.Python.scrubNakedValue = function (line) {
  return line + '\n';
};

/**
 * Encode a string as a properly escaped Python string, complete with quotes.
 * @param {string} string Text to encode.
 * @return {string} Python string.
 * @private
 */
Blockly.Python.quote_ = function (string) {
  // Can't use goog.string.quote since % must also be escaped.
  string = string.replace(/\\/g, '\\\\')
    .replace(/\n/g, '\\\n');
  if (string.indexOf('"') > -1 && string.indexOf('"') == -1) {
    return '\'' + string + '\'';
  } else if (string.indexOf('"') == -1 && string.indexOf('"') > -1) {
    return '"' + string + '"';
  } else {
    string = string.replace(/"/g, '\\\"');
    return '"' + string + '"';
  }
};

/**
 * Common tasks for generating Python from blocks.
 * Handles comments for the specified block and any connected value blocks.
 * Calls any statements following this block.
 * @param {!Blockly.Block} block The current block.
 * @param {string} code The Python code created for this block.
 * @return {string} Python code with comments and subsequent blocks added.
 * @private
 */
Blockly.Python.scrub_ = function (block, code) {
  var commentCode = '';
  // Only collect comments for blocks that aren't inline.
  if (!block.outputConnection || !block.outputConnection.targetConnection) {
    // Collect comment for this block.
    var comment = block.getCommentText();
    comment = Blockly.utils.wrap(comment, Blockly.Python.COMMENT_WRAP - 3);
    if (comment) {
      if (block.getProcedureDef) {
        // Use a comment block for function comments.
        //TODO: fixme
        //commentCode += '"""' + comment + '\n"""\n';
      } else {
        commentCode += Blockly.Python.prefixLines(comment + '\n', '# ');
      }
    }
    // Collect comments for all value arguments.
    // Don't collect comments for nested statements.
    for (var i = 0; i < block.inputList.length; i++) {
      if (block.inputList[i].type == Blockly.INPUT_VALUE) {
        var childBlock = block.inputList[i].connection.targetBlock();
        if (childBlock) {
          var comment = Blockly.Python.allNestedComments(childBlock);
          if (comment) {
            commentCode += Blockly.Python.prefixLines(comment, '# ');
          }
        }
      }
    }
  }
  var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
  var nextCode = Blockly.Python.blockToCode(nextBlock);
  return commentCode + code + nextCode;
};

/**
 * Gets a property and adjusts the value, taking into account indexing, and
 * casts to an integer.
 * @param {!Blockly.Block} block The block.
 * @param {string} atId The property ID of the element to get.
 * @param {number=} opt_delta Value to add.
 * @param {boolean=} opt_negate Whether to negate the value.
 * @return {string|number}
 */
Blockly.Python.getAdjustedInt = function (block, atId, opt_delta, opt_negate) {
  var delta = opt_delta || 0;
  if (block.workspace.options.oneBasedIndex) {
    delta--;
  }
  var defaultAtIndex = block.workspace.options.oneBasedIndex ? '1' : '0';
  var atOrder = delta ? Blockly.Python.ORDER_ADDITIVE :
    Blockly.Python.ORDER_NONE;
  var at = Blockly.Python.valueToCode(block, atId, atOrder) || defaultAtIndex;

  if (Blockly.isNumber(at)) {
    // If the index is a naked number, adjust it right now.
    at = parseInt(at, 10) + delta;
    if (opt_negate) {
      at = -at;
    }
  } else {
    // If the index is dynamic, adjust it in code.
    if (delta > 0) {
      at = 'int(' + at + ' + ' + delta + ')';
    } else if (delta < 0) {
      at = 'int(' + at + ' - ' + -delta + ')';
    } else {
      at = 'int(' + at + ')';
    }
    if (opt_negate) {
      at = '-' + at;
    }
  }
  return at;
};

















/**
 * A list of types tasks that the pins can be assigned. Used to track usage and
 * warn if the same pin has been assigned to more than one task.
 */
Blockly.Python.PinTypes = {
  INPUT: 'INPUT',
  OUTPUT: 'OUTPUT',
  PWM: 'PWM',
  SERVO: 'SERVO',
  STEPPER: 'STEPPER',
  SERIAL: 'SERIAL',
  I2C: 'I2C/TWI',
  SPI: 'SPI',
  // extra setup
  FASTLED: 'FASTLED',
  DHT: 'DHT'
};

/**
 * Arduino generator short name for
 * Blockly.Generator.prototype.FUNCTION_NAME_PLACEHOLDER_
 * @type {!string}
 */
Blockly.Python.DEF_FUNC_NAME = Blockly.Python.FUNCTION_NAME_PLACEHOLDER_;

/**
 * Initialises the database of global definitions, the setup function, function
 * names, and variable names.
 * @param {Blockly.Workspace} workspace Workspace to generate code from.
 */
Blockly.Python.init = function (workspace) {
  // Create a dictionary of definitions to be printed at the top of the sketch
  Blockly.Python.includes_ = Object.create(null);
  // Create a dictionary of global definitions to be printed after variables
  Blockly.Python.definitions_ = Object.create(null);
  // Create a dictionary of variables
  Blockly.Python.variables_ = Object.create(null);
  // Create a dictionary of functions from the code generator
  Blockly.Python.codeFunctions_ = Object.create(null);
  // Create a dictionary of functions created by the user
  Blockly.Python.userFunctions_ = Object.create(null);
  // Create a dictionary mapping desired function names in definitions_
  // to actual function names (to avoid collisions with user functions)
  Blockly.Python.functionNames_ = Object.create(null);
  // Create a dictionary of setups to be printed in the setup() function
  Blockly.Python.setups_ = Object.create(null);
  // Create a dictionary of pins to check if their use conflicts
  Blockly.Python.pins_ = Object.create(null);

  if (!Blockly.Python.variableDB_) {
    Blockly.Python.variableDB_ =
      new Blockly.Names(Blockly.Python.RESERVED_WORDS_);
  } else {
    Blockly.Python.variableDB_.reset();
  }

  // var defvars = [];
  // var variables = workspace.variableList;
  // for (var i = 0; i < variables.length; i++) {
  //   defvars[i] = Blockly.Python.variableDB_.getName(variables[i],
  //     Blockly.Variables.NAME_TYPE) + ' = None';
  // }

  //Blockly.Python.definitions_['variables'] = defvars.join('\n');

  // Iterate through to capture all blocks types and set the function arguments
  // var varsWithTypes = Blockly.Python.StaticTyping.collectVarsWithTypes(workspace);
  // Blockly.Python.StaticTyping.setProcedureArgs(workspace, varsWithTypes);

  // // Set variable declarations with their Arduino type in the defines dictionary
  // for (var varName in varsWithTypes) {
  //   if (Blockly.Python.getArduinoType_(varsWithTypes[varName]) != "array") {
  //     // console.log(Blockly.Python.getArduinoType_(varsWithTypes[varName]));
  //     Blockly.Python.addVariable(varName,
  //       Blockly.Python.getArduinoType_(varsWithTypes[varName]) + ' ' +
  //       Blockly.Python.variableDB_.getName(varName, Blockly.Variables.NAME_TYPE) + ';');
  //   }
  // }
};

// /**
//  * Prepare all generated code to be placed in the sketch specific locations.
//  * @param {string} code Generated main program (loop function) code.
//  * @return {string} Completed sketch code.
//  */
Blockly.Python.finish = function (code) {
  // Convert the includes, definitions, and functions dictionaries into lists
  var includes = [], definitions = [], variables = [], functions = [];
  for (var name in Blockly.Python.includes_) {
    includes.push(Blockly.Python.includes_[name]);
  }
  if (includes.length) {
    includes.push('\n');
  }
  for (var name in Blockly.Python.variables_) {
    variables.push(Blockly.Python.variables_[name]);
  }
  if (variables.length) {
    variables.push('\n');
  }
  for (var name in Blockly.Python.definitions_) {
    var def = Blockly.Python.definitions_[name];
    if (def.match(/^(from\s+\S+\s+)?import\s+\S+/)) {
      includes.push(def);
    } else {
      definitions.push(def);
    }
  }
  if (definitions.length) {
    definitions.push('\n');
  }
  for (var name in Blockly.Python.codeFunctions_) {
    functions.push(Blockly.Python.codeFunctions_[name]);
  }
  for (var name in Blockly.Python.userFunctions_) {
    functions.push(Blockly.Python.userFunctions_[name]);
  }
  if (functions.length) {
    functions.push('\n');
  }

  // userSetupCode added at the end of the setup function without leading spaces
  var setups = [''], userSetupCode = '';
  if (Blockly.Python.setups_['userSetupCode'] !== undefined) {
    userSetupCode = '\n' + Blockly.Python.setups_['userSetupCode'];
    delete Blockly.Python.setups_['userSetupCode'];
  }
  for (var name in Blockly.Python.setups_) {
    setups.push(Blockly.Python.setups_[name]);
  }
  if (userSetupCode) {
    setups.push(userSetupCode);
  }
  // Clean up temporary data
  delete Blockly.Python.includes_;
  delete Blockly.Python.definitions_;
  delete Blockly.Python.variables_;
  delete Blockly.Python.codeFunctions_;
  delete Blockly.Python.userFunctions_;
  delete Blockly.Python.functionNames_;
  delete Blockly.Python.setups_;
  delete Blockly.Python.pins_;
  Blockly.Python.variableDB_.reset();
  var allDefs = includes.join('\n') + '\n\n' +
    definitions.join('\n') + '\n\n' + functions.join('\n') + '\n\n' + variables.join('\n') + '\n\n';
  var setup = setups.join('\n') + '\n\n';
  var loop = code + '\n\n';
  // functions.join('\n').replace(/\n\n+/g, '\n\n') +
  return allDefs.replace(/\n\n+/g, '\n\n') + setup.replace(/\n\n+/g, '\n\n') + loop.replace(/\n\n+/g, '\n\n');
};

/**
 * Adds a string of "include" code to be added to the sketch.
 * Once a include is added it will not get overwritten with new code.
 * @param {!string} includeTag Identifier for this include code.
 * @param {!string} code Code to be included at the very top of the sketch.
 */
Blockly.Python.addInclude = function (includeTag, code) {
  if (Blockly.Python.includes_[includeTag] === undefined) {
    Blockly.Python.includes_[includeTag] = code;
  }
};

/**
 * Adds a string of code to be declared globally to the sketch.
 * Once it is added it will not get overwritten with new code.
 * @param {!string} declarationTag Identifier for this declaration code.
 * @param {!string} code Code to be added below the includes.
 */
Blockly.Python.addDeclaration = function (declarationTag, code) {
  if (Blockly.Python.definitions_[declarationTag] === undefined) {
    Blockly.Python.definitions_[declarationTag] = code;
  }
};

/**
 * Adds a string of code to declare a variable globally to the sketch.
 * Only if overwrite option is set to true it will overwrite whatever
 * value the identifier held before.
 * @param {!string} varName The name of the variable to declare.
 * @param {!string} code Code to be added for the declaration.
 * @param {boolean=} overwrite Flag to ignore previously set value.
 * @return {!boolean} Indicates if the declaration overwrote a previous one.
 */
Blockly.Python.addVariable = function (varName, code, overwrite) {
  var overwritten = false;
  if (overwrite || (Blockly.Python.variableDB_.dbReverse_[varName] === undefined)) {
    Blockly.Python.variables_[varName] = code;
    Blockly.mainWorkspace.createVariable(varName)
    // Blockly.Python.variableDB_.dbReverse_[varName] = true;
    // Blockly.Python.variableDB_.db_[varName + "_VARIABLE"] = varName;
    overwritten = true;
  }
  return overwritten;
};

/**
 * Adds a string of code into the Arduino setup() function. It takes an
 * identifier to not repeat the same kind of initialisation code from several
 * blocks. If overwrite option is set to true it will overwrite whatever
 * value the identifier held before.
 * @param {!string} setupTag Identifier for the type of set up code.
 * @param {!string} code Code to be included in the setup() function.
 * @param {boolean=} overwrite Flag to ignore previously set value.
 * @return {!boolean} Indicates if the new setup code overwrote a previous one.
 */
Blockly.Python.addSetup = function (setupTag, code, overwrite) {
  var overwritten = false;
  if (overwrite || (Blockly.Python.setups_[setupTag] === undefined)) {
    Blockly.Python.setups_[setupTag] = code;
    overwritten = true;
  }
  return overwritten;
};

/**
 * Adds a string of code as a function. It takes an identifier (meant to be the
 * function name) to only keep a single copy even if multiple blocks might
 * request this function to be created.
 * A function (and its code) will only be added on first request.
 * @param {!string} preferedName Identifier for the function.
 * @param {!string} code Code to be included in the setup() function.
 * @return {!string} A unique function name based on input name.
 */
Blockly.Python.addFunction = function (preferedName, code) {
  if (Blockly.Python.codeFunctions_[preferedName] === undefined) {
    var uniqueName = Blockly.Python.variableDB_.getDistinctName(
      preferedName, Blockly.Generator.NAME_TYPE);
    Blockly.Python.codeFunctions_[preferedName] =
      code.replace(Blockly.Python.DEF_FUNC_NAME, uniqueName);
    Blockly.Python.functionNames_[preferedName] = uniqueName;
  }
  return Blockly.Python.functionNames_[preferedName];
};

/**
 * Description.
 * @param {!Blockly.Block} block Description.
 * @param {!string} pin Description.
 * @param {!string} pinType Description.
 * @param {!string} warningTag Description.
 */
Blockly.Python.reservePin = function (block, pin, pinType, warningTag) {
  if (Blockly.Python.pins_[pin] !== undefined) {
    if (Blockly.Python.pins_[pin] != pinType) {
      block.setWarningText(Blockly.Msg.ARD_PIN_WARN1.replace('%1', pin)
        .replace('%2', warningTag).replace('%3', pinType)
        .replace('%4', Blockly.Python.pins_[pin]), warningTag);
    } else {
      block.setWarningText(null, warningTag);
    }
  } else {
    Blockly.Python.pins_[pin] = pinType;
    block.setWarningText(null, warningTag);
  }
};

/**
 * Naked values are top-level blocks with outputs that aren't plugged into
 * anything. A trailing semicolon is needed to make this legal.
 * @param {string} line Line of generated code.
 * @return {string} Legal line of code.
 */
// Blockly.Python.scrubNakedValue = function(line) {
//   return line + ';\n';
// };

/**
 * Encode a string as a properly escaped Arduino string, complete with quotes.
 * @param {string} string Text to encode.
 * @return {string} Arduino string.
 * @private
 */
// Blockly.Python.quote_ = function(string) {
//   // TODO: This is a quick hack.  Replace with goog.string.quote
//   string = string.replace(/\\/g, '\\\\')
//                  .replace(/\n/g, '\\\n')
//                  .replace(/\$/g, '\\$')
//                  .replace(/'/g, '\\\'');
//   return '\"' + string + '\"';
// };

/**
 * Common tasks for generating Arduino from blocks.
 * Handles comments for the specified block and any connected value blocks.
 * Calls any statements following this block.
 * @param {!Blockly.Block} block The current block.
 * @param {string} code The Arduino code created for this block.
 * @return {string} Arduino code with comments and subsequent blocks added.
 * @this {Blockly.CodeGenerator}
 * @private
 */
// Blockly.Python.scrub_ = function(block, code) {
//   if (code === null) { return ''; } // Block has handled code generation itself

//   var commentCode = '';
//   // Only collect comments for blocks that aren't inline
//   if (!block.outputConnection || !block.outputConnection.targetConnection) {
//     // Collect comment for this block.
//     var comment = block.getCommentText();
//     if (comment) {
//       commentCode += this.prefixLines(comment, '// ') + '\n';
//     }
//     // Collect comments for all value arguments
//     // Don't collect comments for nested statements
//     for (var x = 0; x < block.inputList.length; x++) {
//       if (block.inputList[x].type == Blockly.INPUT_VALUE) {
//         var childBlock = block.inputList[x].connection.targetBlock();
//         if (childBlock) {
//           var comment = this.allNestedComments(childBlock);
//           if (comment) {
//             commentCode += this.prefixLines(comment, '// ');
//           }
//         }
//       }
//     }
//   }
//   var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
//   var nextCode = this.blockToCode(nextBlock);
//   return commentCode + code + nextCode;
// };

/**
 * Generates Arduino Types from a Blockly Type.
 * @param {!Blockly.Type} typeBlockly The Blockly type to be converted.
 * @return {string} Arduino type for the respective Blockly input type, in a
 *     string format.
 * @private
 */
Blockly.Python.getArduinoType_ = function (typeBlockly) {
  switch (typeBlockly.typeId) {
    case Blockly.Types.SHORT_NUMBER.typeId:
      return 'short';
    case Blockly.Types.NUMBER.typeId:
      return 'int';
    case Blockly.Types.LARGE_NUMBER.typeId:
      return 'long';
    case Blockly.Types.DECIMAL.typeId:
      return 'float';
    case Blockly.Types.TEXT.typeId:
      return 'String';
    case Blockly.Types.CHARACTER.typeId:
      return 'char';
    case Blockly.Types.BOOLEAN.typeId:
      return 'boolean';
    case Blockly.Types.NULL.typeId:
      return 'void';
    case Blockly.Types.UNDEF.typeId:
      return 'undefined';
    case Blockly.Types.CHILD_BLOCK_MISSING.typeId:
      // If no block connected default to int, change for easier debugging
      //return 'ChildBlockMissing';
      return 'int';
    case Blockly.Types.ARRAY.typeId:
      return 'array';
    default:
      return 'Invalid Blockly Type';
  }
};

/** Used for not-yet-implemented block code generators */
Blockly.Python.noGeneratorCodeInline = function () {
  return ['', Blockly.Python.ORDER_ATOMIC];
};

/** Used for not-yet-implemented block code generators */
Blockly.Python.noGeneratorCodeLine = function () { return ''; };