summaryrefslogtreecommitdiff
path: root/JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java
diff options
context:
space:
mode:
Diffstat (limited to 'JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java')
-rw-r--r--JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java41
1 files changed, 41 insertions, 0 deletions
diff --git a/JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java b/JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java
new file mode 100644
index 0000000..16af5aa
--- /dev/null
+++ b/JPratt/src/main/java/bjc/pratt/commands/impls/ConstantCommand.java
@@ -0,0 +1,41 @@
+package bjc.pratt.commands.impls;
+
+import bjc.pratt.ParserContext;
+import bjc.pratt.commands.InitialCommand;
+import bjc.pratt.tokens.Token;
+import bjc.utils.data.ITree;
+import bjc.utils.parserutils.ParserException;
+
+/**
+ * A command that represents a specific tree.
+ *
+ * @author bjculkin
+ *
+ * @param <K>
+ * The key type of the tokens.
+ *
+ * @param <V>
+ * The value type of the tokens.
+ *
+ * @param <C>
+ * The state type of the parser.
+ */
+public class ConstantCommand<K, V, C> implements InitialCommand<K, V, C> {
+ private final ITree<Token<K, V>> val;
+
+ /**
+ * Create a new constant.
+ *
+ * @param con
+ * The tree this constant represents.
+ */
+ public ConstantCommand(final ITree<Token<K, V>> con) {
+ val = con;
+ }
+
+ @Override
+ public ITree<Token<K, V>> denote(final Token<K, V> operator, final ParserContext<K, V, C> ctx)
+ throws ParserException {
+ return val;
+ }
+} \ No newline at end of file