Rudimentary CLI for new die implementation

1 files changed, 39 insertions, 0 deletions

diff --git a/dice/src/example/java/bjc/dicelang/neodice/commands/BindCommand.java b/dice/src/example/java/bjc/dicelang/neodice/commands/BindCommand.java
new file mode 100644
index 0000000..5091c4b
--- /dev/null
+++ b/dice/src/example/java/bjc/dicelang/neodice/commands/BindCommand.java
@@ -0,0 +1,39 @@
+package bjc.dicelang.neodice.commands;
+
+import static bjc.dicelang.neodice.statements.StatementValue.Type.*;
+
+import java.util.*;
+
+import bjc.dicelang.neodice.*;
+import bjc.dicelang.neodice.statements.*;
+
+public class BindCommand implements Command {
+  @Override
+  public StatementValue execute(Iterator<String> words, DieBoxCLI state) {
+  	if (!words.hasNext()) {
+			throw new DieBoxException("bind requires a name to bind the value to");
+		}
+		
+		String name = words.next();
+		
+		StatementValue value = state.runStatement(words);
+		
+		if (state.doWarn && value.type == VOID) {
+			state.output.printf("Warning: bound %s to the instance of void. Should you have provided a value?", name);
+		}
+		
+		state.bindings.put(name, value);
+		
+		return value;
+  }
+  
+  @Override
+  public String shortHelp() {
+  	return "bind a value to a name";
+  }
+  
+  @Override
+  public String longHelp() {
+  	return "Binds a value to a name, and returns that name. Currently, all variables go into a single global scope, but this will probably change";
+  }
+}
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