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Initial generators
This commit is contained in:
Andrew Sliwinski
parent
914ad369c3
commit
dcf2be4fa3
31 changed files with 66 additions and 5383 deletions
generators
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/**
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* @license
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* Visual Blocks Language
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*
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* Copyright 2015 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Helper functions for generating PHP for blocks.
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* @author daarond@gmail.com (Daaron Dwyer)
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*/
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'use strict';
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goog.provide('Blockly.PHP');
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goog.require('Blockly.Generator');
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/**
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* PHP code generator.
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* @type {!Blockly.Generator}
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*/
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Blockly.PHP = new Blockly.Generator('PHP');
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/**
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* List of illegal variable names.
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* This is not intended to be a security feature. Blockly is 100% client-side,
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* so bypassing this list is trivial. This is intended to prevent users from
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* accidentally clobbering a built-in object or function.
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* @private
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*/
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Blockly.PHP.addReservedWords(
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// http://php.net/manual/en/reserved.keywords.php
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'__halt_compiler,abstract,and,array,as,break,callable,case,catch,class,clone,const,continue,declare,default,die,do,echo,else,elseif,empty,enddeclare,endfor,endforeach,endif,endswitch,endwhile,eval,exit,extends,final,for,foreach,function,global,goto,if,implements,include,include_once,instanceof,insteadof,interface,isset,list,namespace,new,or,print,private,protected,public,require,require_once,return,static,switch,throw,trait,try,unset,use,var,while,xor,' +
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// http://php.net/manual/en/reserved.constants.php
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'PHP_VERSION,PHP_MAJOR_VERSION,PHP_MINOR_VERSION,PHP_RELEASE_VERSION,PHP_VERSION_ID,PHP_EXTRA_VERSION,PHP_ZTS,PHP_DEBUG,PHP_MAXPATHLEN,PHP_OS,PHP_SAPI,PHP_EOL,PHP_INT_MAX,PHP_INT_SIZE,DEFAULT_INCLUDE_PATH,PEAR_INSTALL_DIR,PEAR_EXTENSION_DIR,PHP_EXTENSION_DIR,PHP_PREFIX,PHP_BINDIR,PHP_BINARY,PHP_MANDIR,PHP_LIBDIR,PHP_DATADIR,PHP_SYSCONFDIR,PHP_LOCALSTATEDIR,PHP_CONFIG_FILE_PATH,PHP_CONFIG_FILE_SCAN_DIR,PHP_SHLIB_SUFFIX,E_ERROR,E_WARNING,E_PARSE,E_NOTICE,E_CORE_ERROR,E_CORE_WARNING,E_COMPILE_ERROR,E_COMPILE_WARNING,E_USER_ERROR,E_USER_WARNING,E_USER_NOTICE,E_DEPRECATED,E_USER_DEPRECATED,E_ALL,E_STRICT,__COMPILER_HALT_OFFSET__,TRUE,FALSE,NULL,__CLASS__,__DIR__,__FILE__,__FUNCTION__,__LINE__,__METHOD__,__NAMESPACE__,__TRAIT__');
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/**
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* Order of operation ENUMs.
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* http://php.net/manual/en/language.operators.precedence.php
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*/
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Blockly.PHP.ORDER_ATOMIC = 0; // 0 "" ...
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Blockly.PHP.ORDER_CLONE = 1; // clone
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Blockly.PHP.ORDER_NEW = 1; // new
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Blockly.PHP.ORDER_MEMBER = 2; // ()
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Blockly.PHP.ORDER_FUNCTION_CALL = 2; // ()
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Blockly.PHP.ORDER_INCREMENT = 3; // ++
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Blockly.PHP.ORDER_DECREMENT = 3; // --
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Blockly.PHP.ORDER_LOGICAL_NOT = 4; // !
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Blockly.PHP.ORDER_BITWISE_NOT = 4; // ~
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Blockly.PHP.ORDER_UNARY_PLUS = 4; // +
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Blockly.PHP.ORDER_UNARY_NEGATION = 4; // -
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Blockly.PHP.ORDER_MULTIPLICATION = 5; // *
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Blockly.PHP.ORDER_DIVISION = 5; // /
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Blockly.PHP.ORDER_MODULUS = 5; // %
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Blockly.PHP.ORDER_ADDITION = 6; // +
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Blockly.PHP.ORDER_SUBTRACTION = 6; // -
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Blockly.PHP.ORDER_BITWISE_SHIFT = 7; // << >> >>>
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Blockly.PHP.ORDER_RELATIONAL = 8; // < <= > >=
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Blockly.PHP.ORDER_IN = 8; // in
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Blockly.PHP.ORDER_INSTANCEOF = 8; // instanceof
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Blockly.PHP.ORDER_EQUALITY = 9; // == != === !==
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Blockly.PHP.ORDER_BITWISE_AND = 10; // &
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Blockly.PHP.ORDER_BITWISE_XOR = 11; // ^
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Blockly.PHP.ORDER_BITWISE_OR = 12; // |
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Blockly.PHP.ORDER_CONDITIONAL = 13; // ?:
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Blockly.PHP.ORDER_ASSIGNMENT = 14; // = += -= *= /= %= <<= >>= ...
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Blockly.PHP.ORDER_LOGICAL_AND = 15; // &&
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Blockly.PHP.ORDER_LOGICAL_OR = 16; // ||
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Blockly.PHP.ORDER_COMMA = 17; // ,
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Blockly.PHP.ORDER_NONE = 99; // (...)
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/**
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* Initialise the database of variable names.
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* @param {!Blockly.Workspace} workspace Workspace to generate code from.
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*/
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Blockly.PHP.init = function(workspace) {
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// Create a dictionary of definitions to be printed before the code.
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Blockly.PHP.definitions_ = Object.create(null);
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// Create a dictionary mapping desired function names in definitions_
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// to actual function names (to avoid collisions with user functions).
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Blockly.PHP.functionNames_ = Object.create(null);
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if (!Blockly.PHP.variableDB_) {
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Blockly.PHP.variableDB_ =
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new Blockly.Names(Blockly.PHP.RESERVED_WORDS_, '$');
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} else {
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Blockly.PHP.variableDB_.reset();
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}
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var defvars = [];
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var variables = Blockly.Variables.allVariables(workspace);
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for (var i = 0; i < variables.length; i++) {
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defvars[i] = Blockly.PHP.variableDB_.getName(variables[i],
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Blockly.Variables.NAME_TYPE) + ';';
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}
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Blockly.PHP.definitions_['variables'] = defvars.join('\n');
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};
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/**
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* Prepend the generated code with the variable definitions.
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* @param {string} code Generated code.
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* @return {string} Completed code.
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*/
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Blockly.PHP.finish = function(code) {
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// Convert the definitions dictionary into a list.
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var definitions = [];
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for (var name in Blockly.PHP.definitions_) {
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definitions.push(Blockly.PHP.definitions_[name]);
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}
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// Clean up temporary data.
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delete Blockly.PHP.definitions_;
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delete Blockly.PHP.functionNames_;
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Blockly.PHP.variableDB_.reset();
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return definitions.join('\n\n') + '\n\n\n' + code;
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};
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/**
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* Naked values are top-level blocks with outputs that aren't plugged into
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* anything. A trailing semicolon is needed to make this legal.
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* @param {string} line Line of generated code.
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* @return {string} Legal line of code.
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*/
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Blockly.PHP.scrubNakedValue = function(line) {
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return line + ';\n';
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};
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/**
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* Encode a string as a properly escaped PHP string, complete with
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* quotes.
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* @param {string} string Text to encode.
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* @return {string} PHP string.
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* @private
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*/
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Blockly.PHP.quote_ = function(string) {
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// TODO: This is a quick hack. Replace with goog.string.quote
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string = string.replace(/\\/g, '\\\\')
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.replace(/\n/g, '\\\n')
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.replace(/'/g, '\\\'');
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return '\'' + string + '\'';
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};
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/**
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* Common tasks for generating PHP from blocks.
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* Handles comments for the specified block and any connected value blocks.
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* Calls any statements following this block.
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* @param {!Blockly.Block} block The current block.
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* @param {string} code The PHP code created for this block.
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* @return {string} PHP code with comments and subsequent blocks added.
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* @private
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*/
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Blockly.PHP.scrub_ = function(block, code) {
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var commentCode = '';
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// Only collect comments for blocks that aren't inline.
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if (!block.outputConnection || !block.outputConnection.targetConnection) {
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// Collect comment for this block.
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var comment = block.getCommentText();
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if (comment) {
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commentCode += Blockly.PHP.prefixLines(comment, '// ') + '\n';
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}
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// Collect comments for all value arguments.
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// Don't collect comments for nested statements.
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for (var x = 0; x < block.inputList.length; x++) {
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if (block.inputList[x].type == Blockly.INPUT_VALUE) {
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var childBlock = block.inputList[x].connection.targetBlock();
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if (childBlock) {
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var comment = Blockly.PHP.allNestedComments(childBlock);
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if (comment) {
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commentCode += Blockly.PHP.prefixLines(comment, '// ');
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}
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}
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}
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}
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}
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var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
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var nextCode = Blockly.PHP.blockToCode(nextBlock);
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return commentCode + code + nextCode;
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};
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