[270] | 1 | // Porting from
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| 2 | // https://github.com/jeanlazarou/blockly2ruby
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| 3 | // Copyright (c) 2014 Jean Lazarou
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| 4 | // MIT Lisence
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| 5 | using System;
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| 6 | using Bridge;
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| 7 | using System.Collections.Generic;
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| 8 |
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| 9 | namespace WebMrbc
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| 10 | {
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| 11 | partial class Ruby
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| 12 | {
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| 13 | public node controls_if(ControlsIfBlock block)
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| 14 | {
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| 15 | // If/elseif/else condition.
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| 16 | node code = null;
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| 17 | if (block.elseCount_ != 0) {
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| 18 | code = statementToCode(block, "ELSE");
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| 19 | if (code == null) code = new nil_node(this);
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| 20 | }
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| 21 | for (var n = block.elseifCount_; n >= 0; n--) {
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| 22 | var argument = valueToCode(block, "IF" + n);
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| 23 | if (argument == null) argument = new false_node(this);
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| 24 | var branch = statementToCode(block, "DO" + n);
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| 25 | code = new if_node(this, argument, branch, code, false);
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| 26 | }
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| 27 | return code;
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| 28 | }
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| 29 |
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| 30 | public node logic_compare(LogicCompareBlock block)
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| 31 | {
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| 32 | // Comparison operator.
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| 33 | var OPERATORS = new Dictionary<string, string>() {
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| 34 | { "EQ", "==" },
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| 35 | { "NEQ", "!=" },
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| 36 | { "LT", "<" },
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| 37 | { "LTE", "<=" },
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| 38 | { "GT", ">" },
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| 39 | { "GTE", ">=" },
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| 40 | };
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| 41 | var @operator = OPERATORS[block.getFieldValue("OP")];
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| 42 | var argument0 = valueToCode(block, "A");
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| 43 | if (argument0 == null) argument0 = new int_node(this, 0);
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| 44 | var argument1 = valueToCode(block, "B");
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| 45 | if (argument1 == null) argument1 = new int_node(this, 0);
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| 46 | return new call_node(this, argument0, intern(@operator), argument1);
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| 47 | }
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| 48 |
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| 49 | public node logic_operation(LogicOperationBlock block)
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| 50 | {
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| 51 | // Operations 'and', 'or'.
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| 52 | var @operator = (block.getFieldValue("OP") == "AND") ? "&&" : "||";
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| 53 | var argument0 = valueToCode(block, "A");
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| 54 | var argument1 = valueToCode(block, "B");
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| 55 | if (argument0 == null && argument1 == null) {
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| 56 | // If there are no arguments, then the return value is false.
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| 57 | argument0 = new false_node(this);
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| 58 | argument1 = new false_node(this);
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| 59 | }
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| 60 | else {
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| 61 | // Single missing arguments have no effect on the return value.
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| 62 | var defaultArgument = (@operator == "&&") ? (node)new true_node(this) : (node)new false_node(this);
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| 63 | if (argument0 == null) {
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| 64 | argument0 = defaultArgument;
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| 65 | }
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| 66 | if (argument1 == null) {
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| 67 | argument1 = defaultArgument;
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| 68 | }
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| 69 | }
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| 70 | if (@operator == "&&")
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| 71 | return new and_node(this, argument0, argument1);
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| 72 | else
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| 73 | return new or_node(this, argument0, argument1);
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| 74 | }
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| 75 |
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| 76 | public node logic_negate(LogicNegateBlock block)
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| 77 | {
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| 78 | // Negation.
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| 79 | var argument0 = valueToCode(block, "BOOL");
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| 80 | if (argument0 == null) argument0 = new true_node(this);
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| 81 | return new call_node(this, argument0, intern("!"), (node)null);
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| 82 | }
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| 83 |
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| 84 | public node logic_boolean(LogicBooleanBlock block)
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| 85 | {
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| 86 | // Boolean values true and false.
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| 87 | return (block.getFieldValue("BOOL") == "TRUE") ? (node)new true_node(this) : (node)new false_node(this);
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| 88 | }
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| 89 |
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| 90 | public node logic_null(LogicNullBlock block)
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| 91 | {
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| 92 | // Null data type.
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| 93 | return new nil_node(this);
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| 94 | }
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| 95 |
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| 96 | public node logic_ternary(LogicTernaryBlock block)
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| 97 | {
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| 98 | // Ternary operator.
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| 99 | var value_if = valueToCode(block, "IF");
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| 100 | if (value_if == null) value_if = new false_node(this);
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| 101 | var value_then = valueToCode(block, "THEN");
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| 102 | if (value_then == null) value_then = new nil_node(this);
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| 103 | var value_else = valueToCode(block, "ELSE");
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| 104 | if (value_else == null) value_else = new nil_node(this);
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| 105 | return new if_node(this, value_if, value_then, value_else, true);
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| 106 | }
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| 107 | }
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| 108 | }
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