From 3ddd062d60d621971af59b480ba70e8bf9e705f1 Mon Sep 17 00:00:00 2001 From: Ben Culkin Date: Sat, 21 Nov 2020 18:04:20 -0500 Subject: Rudimentary CLI for new die implementation --- .../bjc/dicelang/neodice/commands/BindCommand.java | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 dice/src/example/java/bjc/dicelang/neodice/commands/BindCommand.java (limited to 'dice/src/example/java/bjc/dicelang/neodice/commands/BindCommand.java') 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 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"; + } +} \ No newline at end of file -- cgit v1.2.3