diff options
Diffstat (limited to 'dice-lang/src/main/java/bjc/dicelang/ast/nodes/OperatorDiceNode.java')
| -rw-r--r-- | dice-lang/src/main/java/bjc/dicelang/ast/nodes/OperatorDiceNode.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/dice-lang/src/main/java/bjc/dicelang/ast/nodes/OperatorDiceNode.java b/dice-lang/src/main/java/bjc/dicelang/ast/nodes/OperatorDiceNode.java new file mode 100644 index 0000000..d034943 --- /dev/null +++ b/dice-lang/src/main/java/bjc/dicelang/ast/nodes/OperatorDiceNode.java @@ -0,0 +1,100 @@ +package bjc.dicelang.ast.nodes; + +import static bjc.dicelang.ast.nodes.DiceOperatorType.*; + +// The following classes need to be changed upon addition of a new operator +// 1. DiceASTExpression +// 2. DiceASTFlattener +// 3. DiceASTParser +/** + * A node that represents an operator + * + * @author ben + * + */ +public enum OperatorDiceNode implements IDiceASTNode { + /** + * Represents adding two nodes + */ + ADD(MATH), + /** + * Represents assigning one node to another + */ + ASSIGN(EXPRESSION), + /** + * Representings combining two node values together + */ + COMPOUND(DICE), + /** + * Represents dividing two nodes + */ + DIVIDE(MATH), + /** + * Represents using one node a variable number of times + */ + GROUP(DICE), + /** + * Represents multiplying two nodes + */ + MULTIPLY(MATH), + /** + * Represents subtracting two nodes + */ + SUBTRACT(MATH); + + /** + * Represents the group of operator this operator is sorted into. + * + */ + public final DiceOperatorType type; + + private OperatorDiceNode(DiceOperatorType ty) { + type = ty; + } + + /** + * Create a operator node from a string + * + * @param s + * The string to convert to a node + * @return The operator corresponding to the node + */ + public static OperatorDiceNode fromString(String s) { + switch (s) { + case ":=": + return ASSIGN; + case "+": + return ADD; + case "-": + return SUBTRACT; + case "*": + return MULTIPLY; + case "/": + return DIVIDE; + case "d": + case "group": + return GROUP; + case "c": + case "compound": + return COMPOUND; + default: + throw new IllegalArgumentException( + s + " is not a valid operator node"); + } + } + + @Override + public DiceASTType getType() { + return DiceASTType.OPERATOR; + } + + /* + * (non-Javadoc) + * + * @see bjc.utils.dice.ast.IDiceASTNode#isOperator() + */ + @Override + public boolean isOperator() { + return true; + } +} |
