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- 'use strict';
- goog.provide('Blockly.PHP.loops');
- goog.require('Blockly.PHP');
- Blockly.PHP['controls_repeat_ext'] = function(block) {
-
- if (block.getField('TIMES')) {
-
- var repeats = String(Number(block.getFieldValue('TIMES')));
- } else {
-
- var repeats = Blockly.PHP.valueToCode(block, 'TIMES',
- Blockly.PHP.ORDER_ASSIGNMENT) || '0';
- }
- var branch = Blockly.PHP.statementToCode(block, 'DO');
- branch = Blockly.PHP.addLoopTrap(branch, block.id);
- var code = '';
- var loopVar = Blockly.PHP.variableDB_.getDistinctName(
- 'count', Blockly.Variables.NAME_TYPE);
- var endVar = repeats;
- if (!repeats.match(/^\w+$/) && !Blockly.isNumber(repeats)) {
- var endVar = Blockly.PHP.variableDB_.getDistinctName(
- 'repeat_end', Blockly.Variables.NAME_TYPE);
- code += endVar + ' = ' + repeats + ';\n';
- }
- code += 'for (' + loopVar + ' = 0; ' +
- loopVar + ' < ' + endVar + '; ' +
- loopVar + '++) {\n' +
- branch + '}\n';
- return code;
- };
- Blockly.PHP['controls_repeat'] = Blockly.PHP['controls_repeat_ext'];
- Blockly.PHP['controls_whileUntil'] = function(block) {
-
- var until = block.getFieldValue('MODE') == 'UNTIL';
- var argument0 = Blockly.PHP.valueToCode(block, 'BOOL',
- until ? Blockly.PHP.ORDER_LOGICAL_NOT :
- Blockly.PHP.ORDER_NONE) || 'false';
- var branch = Blockly.PHP.statementToCode(block, 'DO');
- branch = Blockly.PHP.addLoopTrap(branch, block.id);
- if (until) {
- argument0 = '!' + argument0;
- }
- return 'while (' + argument0 + ') {\n' + branch + '}\n';
- };
- Blockly.PHP['controls_for'] = function(block) {
-
- var variable0 = Blockly.PHP.variableDB_.getName(
- block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
- var argument0 = Blockly.PHP.valueToCode(block, 'FROM',
- Blockly.PHP.ORDER_ASSIGNMENT) || '0';
- var argument1 = Blockly.PHP.valueToCode(block, 'TO',
- Blockly.PHP.ORDER_ASSIGNMENT) || '0';
- var increment = Blockly.PHP.valueToCode(block, 'BY',
- Blockly.PHP.ORDER_ASSIGNMENT) || '1';
- var branch = Blockly.PHP.statementToCode(block, 'DO');
- branch = Blockly.PHP.addLoopTrap(branch, block.id);
- var code;
- if (Blockly.isNumber(argument0) && Blockly.isNumber(argument1) &&
- Blockly.isNumber(increment)) {
-
- var up = parseFloat(argument0) <= parseFloat(argument1);
- code = 'for (' + variable0 + ' = ' + argument0 + '; ' +
- variable0 + (up ? ' <= ' : ' >= ') + argument1 + '; ' +
- variable0;
- var step = Math.abs(parseFloat(increment));
- if (step == 1) {
- code += up ? '++' : '--';
- } else {
- code += (up ? ' += ' : ' -= ') + step;
- }
- code += ') {\n' + branch + '}\n';
- } else {
- code = '';
-
- var startVar = argument0;
- if (!argument0.match(/^\w+$/) && !Blockly.isNumber(argument0)) {
- startVar = Blockly.PHP.variableDB_.getDistinctName(
- variable0 + '_start', Blockly.Variables.NAME_TYPE);
- code += startVar + ' = ' + argument0 + ';\n';
- }
- var endVar = argument1;
- if (!argument1.match(/^\w+$/) && !Blockly.isNumber(argument1)) {
- var endVar = Blockly.PHP.variableDB_.getDistinctName(
- variable0 + '_end', Blockly.Variables.NAME_TYPE);
- code += endVar + ' = ' + argument1 + ';\n';
- }
-
-
- var incVar = Blockly.PHP.variableDB_.getDistinctName(
- variable0 + '_inc', Blockly.Variables.NAME_TYPE);
- code += incVar + ' = ';
- if (Blockly.isNumber(increment)) {
- code += Math.abs(increment) + ';\n';
- } else {
- code += 'abs(' + increment + ');\n';
- }
- code += 'if (' + startVar + ' > ' + endVar + ') {\n';
- code += Blockly.PHP.INDENT + incVar + ' = -' + incVar + ';\n';
- code += '}\n';
- code += 'for (' + variable0 + ' = ' + startVar + ';\n' +
- ' ' + incVar + ' >= 0 ? ' +
- variable0 + ' <= ' + endVar + ' : ' +
- variable0 + ' >= ' + endVar + ';\n' +
- ' ' + variable0 + ' += ' + incVar + ') {\n' +
- branch + '}\n';
- }
- return code;
- };
- Blockly.PHP['controls_forEach'] = function(block) {
-
- var variable0 = Blockly.PHP.variableDB_.getName(
- block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
- var argument0 = Blockly.PHP.valueToCode(block, 'LIST',
- Blockly.PHP.ORDER_ASSIGNMENT) || '[]';
- var branch = Blockly.PHP.statementToCode(block, 'DO');
- branch = Blockly.PHP.addLoopTrap(branch, block.id);
- var code = '';
- code += 'foreach (' + argument0 + ' as ' + variable0 +
- ') {\n' + branch + '}\n';
- return code;
- };
- Blockly.PHP['controls_flow_statements'] = function(block) {
-
- switch (block.getFieldValue('FLOW')) {
- case 'BREAK':
- return 'break;\n';
- case 'CONTINUE':
- return 'continue;\n';
- }
- throw 'Unknown flow statement.';
- };
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