Compile zero-arg calls

3 files changed, 40 insertions, 4 deletions

diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompiler.java b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompiler.java
index 8aabbd5b..0cd282cf 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompiler.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompiler.java
@@ -1,5 +1,6 @@
 package org.shedlang.compiler.backends.llvm;
 
+import org.shedlang.compiler.backends.llvm.ir.ast.instructions.LlvmCall;
 import org.shedlang.compiler.backends.llvm.ir.ast.operands.LlvmOperandInt;
 import org.shedlang.compiler.stackir.instructions.*;
 import org.shedlang.compiler.types.NamespaceName;
@@ -13,8 +14,23 @@ public class LlvmCompiler {
 
     public static LlvmCompilerContext compileInstruction(Instruction instruction, LlvmCompilerContext context) {
         return switch (instruction) {
-            case CallInstruction callInstruction -> {
-                throw new UnsupportedOperationException("TODO");
+            case CallInstruction call -> {
+                var receiverResult = context.pop();
+                var receiver = receiverResult.value();
+                context = receiverResult.context();
+
+                var temporaryResult = context.generateVariableLocal(
+                    LlvmCompilerLocalVariableSpace.TEMPORARY
+                );
+                var temporary = temporaryResult.value();
+                context = temporaryResult.context();
+
+                yield context.addInstruction(new LlvmCall(
+                    temporary,
+                    LlvmCompilerTypes.VALUE_TYPE,
+                    receiver,
+                    List.of()
+                )).push(temporary);
             }
             case DefineFunctionInstruction defineFunctionInstruction -> {
                 throw new UnsupportedOperationException("TODO");
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerContext.java b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerContext.java
index c72bed0a..f6f4c9c6 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerContext.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerContext.java
@@ -10,6 +10,7 @@ import org.shedlang.compiler.typechecker.TypeInfo;
 import org.shedlang.compiler.util.POrderedMap;
 
 import java.util.Collection;
+import java.util.Optional;
 
 public record LlvmCompilerContext(
     TypeInfo typeInfo,
@@ -117,12 +118,30 @@ public record LlvmCompilerContext(
     }
 
     public LlvmCompilerResult<LlvmVariableLocal> generateVariableLocal(
+        LlvmCompilerLocalVariableSpace space
+    ) {
+        return generateVariableLocal(space, Optional.empty());
+    }
+
+    public LlvmCompilerResult<LlvmVariableLocal> generateVariableLocal(
         LlvmCompilerLocalVariableSpace space,
         String name
     ) {
+        return generateVariableLocal(space, Optional.of(name));
+    }
+
+    private LlvmCompilerResult<LlvmVariableLocal> generateVariableLocal(
+        LlvmCompilerLocalVariableSpace space,
+        Optional<String> name
+    ) {
+        var prefix = space.toString();
+        if (name.isPresent()) {
+            prefix += "__" + name.get();
+        }
+
         var index = 0;
         while (true) {
-            var fullName = space + "__" + name + "__" + index;
+            var fullName = prefix + "__" + index;
             if (localVariableNames.contains(fullName)) {
                 index++;
             } else {
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerLocalVariableSpace.java b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerLocalVariableSpace.java
index a7bb515a..756e139b 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerLocalVariableSpace.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmCompilerLocalVariableSpace.java
@@ -1,7 +1,8 @@
 package org.shedlang.compiler.backends.llvm;
 
 public enum LlvmCompilerLocalVariableSpace {
-    FIELD_POINTER("fieldPointer");
+    FIELD_POINTER("fieldPointer"),
+    TEMPORARY("tmp");
 
     private final String name;