From 4a550a5ae083518815ec70c73346705f3778df93 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sat, 10 Jun 2023 10:07:16 +0100
Subject: Compile bool literal to stack instruction

---
 .../shedlang/compiler/stackir/StackCompiler.java   | 32 ++++++++++++++++++++++
 .../compiler/stackir/instructions/Instruction.java |  4 +++
 .../stackir/instructions/PushBoolInstruction.java  |  9 ++++++
 3 files changed, 45 insertions(+)
 create mode 100644 src/main/java/org/shedlang/compiler/stackir/StackCompiler.java
 create mode 100644 src/main/java/org/shedlang/compiler/stackir/instructions/Instruction.java
 create mode 100644 src/main/java/org/shedlang/compiler/stackir/instructions/PushBoolInstruction.java

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/stackir/StackCompiler.java b/src/main/java/org/shedlang/compiler/stackir/StackCompiler.java
new file mode 100644
index 00000000..a5b2b829
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/stackir/StackCompiler.java
@@ -0,0 +1,32 @@
+package org.shedlang.compiler.stackir;
+
+import org.shedlang.compiler.ast.typed.*;
+import org.shedlang.compiler.stackir.instructions.Instruction;
+import org.shedlang.compiler.stackir.instructions.PushBoolInstruction;
+
+import java.util.List;
+
+public class StackCompiler {
+    private StackCompiler() {
+    }
+
+    private static List<Instruction> compileBoolLiteral(TypedBoolLiteralNode node) {
+        return List.of(new PushBoolInstruction(node.value(), node.source()));
+    }
+
+    public static List<Instruction> compileExpression(TypedExpressionNode node) {
+        return switch (node) {
+            case TypedBoolLiteralNode typedBoolLiteralNode ->
+                compileBoolLiteral(typedBoolLiteralNode);
+
+            case TypedIntLiteralNode typedIntLiteralNode ->
+                throw new UnsupportedOperationException("TODO");
+
+            case TypedReferenceNode typedReferenceNode ->
+                throw new UnsupportedOperationException("TODO");
+
+            case TypedStringLiteralNode typedStringLiteralNode ->
+                throw new UnsupportedOperationException("TODO");
+        };
+    }
+}
diff --git a/src/main/java/org/shedlang/compiler/stackir/instructions/Instruction.java b/src/main/java/org/shedlang/compiler/stackir/instructions/Instruction.java
new file mode 100644
index 00000000..70c9d7c3
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/stackir/instructions/Instruction.java
@@ -0,0 +1,4 @@
+package org.shedlang.compiler.stackir.instructions;
+
+public sealed interface Instruction permits PushBoolInstruction {
+}
diff --git a/src/main/java/org/shedlang/compiler/stackir/instructions/PushBoolInstruction.java b/src/main/java/org/shedlang/compiler/stackir/instructions/PushBoolInstruction.java
new file mode 100644
index 00000000..0d9ad6b4
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/stackir/instructions/PushBoolInstruction.java
@@ -0,0 +1,9 @@
+package org.shedlang.compiler.stackir.instructions;
+
+import org.shedlang.compiler.sources.Source;
+
+public record PushBoolInstruction(
+    boolean value,
+    Source source
+) implements Instruction {
+}
-- 
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