From 6820962c44cc7a27fe45d0a2ebe8140cd11f5811 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Fri, 7 Jul 2023 18:29:08 +0100
Subject: Add typed int add node

---
 .../org/shedlang/compiler/ast/typed/Typed.java     | 12 ++++++++++
 .../compiler/stackir/StackCompilerIntAddTests.java | 27 ++++++++++++++++++++++
 .../stackir/instructions/InstructionMatchers.java  |  4 ++++
 3 files changed, 43 insertions(+)
 create mode 100644 src/test/java/org/shedlang/compiler/stackir/StackCompilerIntAddTests.java

(limited to 'src/test/java')

diff --git a/src/test/java/org/shedlang/compiler/ast/typed/Typed.java b/src/test/java/org/shedlang/compiler/ast/typed/Typed.java
index d41842dc..cb4d1f02 100644
--- a/src/test/java/org/shedlang/compiler/ast/typed/Typed.java
+++ b/src/test/java/org/shedlang/compiler/ast/typed/Typed.java
@@ -35,6 +35,18 @@ public class Typed {
         return new TypedExpressionStatementNode(expression, Sources.NULL);
     }
 
+    public static TypedBinaryOperationNode intAdd(
+        TypedExpressionNode left,
+        TypedExpressionNode right
+    ) {
+        return new TypedBinaryOperationNode(
+            TypedBinaryOperator.INT_ADD,
+            left,
+            right,
+            Sources.NULL
+        );
+    }
+
     public static TypedIntLiteralNode intLiteral(int value) {
         return new TypedIntLiteralNode(BigInteger.valueOf(value), Sources.NULL);
     }
diff --git a/src/test/java/org/shedlang/compiler/stackir/StackCompilerIntAddTests.java b/src/test/java/org/shedlang/compiler/stackir/StackCompilerIntAddTests.java
new file mode 100644
index 00000000..55283682
--- /dev/null
+++ b/src/test/java/org/shedlang/compiler/stackir/StackCompilerIntAddTests.java
@@ -0,0 +1,27 @@
+package org.shedlang.compiler.stackir;
+
+import org.junit.jupiter.api.Test;
+import org.shedlang.compiler.ast.typed.Typed;
+
+import static org.shedlang.compiler.stackir.instructions.InstructionMatchers.isIntAddInstruction;
+import static org.shedlang.compiler.stackir.instructions.InstructionMatchers.isPushIntInstruction;
+import static org.zwobble.precisely.AssertThat.assertThat;
+import static org.zwobble.precisely.Matchers.isSequence;
+
+public class StackCompilerIntAddTests {
+    @Test
+    public void intAddIsCompiledToIntAddInstruction() {
+        var node = Typed.intAdd(
+            Typed.intLiteral(42),
+            Typed.intLiteral(47)
+        );
+
+        var instructions = StackCompiler.compileExpression(node);
+
+        assertThat(instructions, isSequence(
+            isPushIntInstruction(42),
+            isPushIntInstruction(47),
+            isIntAddInstruction()
+        ));
+    }
+}
diff --git a/src/test/java/org/shedlang/compiler/stackir/instructions/InstructionMatchers.java b/src/test/java/org/shedlang/compiler/stackir/instructions/InstructionMatchers.java
index 8e24e131..201a69c2 100644
--- a/src/test/java/org/shedlang/compiler/stackir/instructions/InstructionMatchers.java
+++ b/src/test/java/org/shedlang/compiler/stackir/instructions/InstructionMatchers.java
@@ -33,6 +33,10 @@ public class InstructionMatchers {
         );
     }
 
+    public static Matcher<Instruction> isIntAddInstruction() {
+        return instanceOf(IntAddInstruction.class);
+    }
+
     public static Matcher<Instruction> isLocalLoadInstruction(String name) {
         return instanceOf(
             LocalLoadInstruction.class,
-- 
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