Generate Patio IR for discard

1 files changed, 18 insertions, 0 deletions

diff --git a/src/main/java/org/shedlang/compiler/patio/PatioCodeGen.java b/src/main/java/org/shedlang/compiler/patio/PatioCodeGen.java
index ed180aba..f19e88ba 100644
--- a/src/main/java/org/shedlang/compiler/patio/PatioCodeGen.java
+++ b/src/main/java/org/shedlang/compiler/patio/PatioCodeGen.java
@@ -1,4 +1,22 @@
 package org.shedlang.compiler.patio;
 
+import org.pcollections.PVector;
+import org.shedlang.compiler.patio.instructions.PatioDiscard;
+import org.shedlang.compiler.patio.instructions.PatioInstruction;
+import org.shedlang.compiler.stackir.instructions.DiscardInstruction;
+import org.shedlang.compiler.stackir.instructions.Instruction;
+import org.shedlang.compiler.util.P;
+
 public class PatioCodeGen {
+    private PatioCodeGen() {}
+
+    public static PVector<PatioInstruction> generateInstruction(Instruction stackIrInstruction) {
+        return switch (stackIrInstruction) {
+            case DiscardInstruction discard ->
+                P.vector(new PatioDiscard(discard.source()));
+
+            default ->
+                throw new IllegalStateException("Unexpected value: " + stackIrInstruction);
+        };
+    }
 }