Extract WasmBackend.link()

1 files changed, 19 insertions, 12 deletions

diff --git a/src/main/java/org/shedlang/compiler/backends/wasm/WasmBackend.java b/src/main/java/org/shedlang/compiler/backends/wasm/WasmBackend.java
index 15b53278..3a2d134d 100644
--- a/src/main/java/org/shedlang/compiler/backends/wasm/WasmBackend.java
+++ b/src/main/java/org/shedlang/compiler/backends/wasm/WasmBackend.java
@@ -13,6 +13,7 @@ import org.shedlang.compiler.sources.Sources;
 import org.shedlang.compiler.stackir.StackIrNamespace;
 import org.shedlang.compiler.typechecker.TypeInfos;
 import org.shedlang.compiler.types.NamespaceName;
+import org.shedlang.compiler.util.processes.ProcessError;
 
 import java.io.FileOutputStream;
 import java.io.IOException;
@@ -56,24 +57,30 @@ public class WasmBackend implements Backend {
         }
 
         for (var bin : config.bins()) {
-            var ldArgs = new ArrayList<String>();
-            ldArgs.add("wasm-ld");
-
-            ldArgs.add("-o");
-            ldArgs.add(targetDir.resolve(bin.name() + ".wasm").toString());
-
-            for (var objectFilePath : objectFilePaths) {
-                ldArgs.add(objectFilePath.toString());
-            }
+            var linkInputs = new ArrayList<>(objectFilePaths);
 
             var mainModule = this.generateMain(bin.mainNamespace(), typeInfos);
             var mainObjectPath = writeObjectFile(mainModule, targetDir.resolve("bins"), bin.name());
-            ldArgs.add(mainObjectPath.toString());
+            linkInputs.add(mainObjectPath);
+
+            link(linkInputs, targetDir.resolve(bin.name() + ".wasm"));
+        }
+    }
+
+    public static void link(List<Path> inputs, Path target) throws ProcessError, InterruptedException {
+        var ldArgs = new ArrayList<String>();
+        ldArgs.add("wasm-ld");
 
-            ldArgs.add(ShedCompilerFiles.getRoot().resolve("runtime/target/wasm/libshed.a").toString());
+        ldArgs.add("-o");
+        ldArgs.add(target.toString());
 
-            runInheritIo(ldArgs);
+        for (var input : inputs) {
+            ldArgs.add(input.toString());
         }
+
+        ldArgs.add(ShedCompilerFiles.getRoot().resolve("runtime/target/wasm/libshed.a").toString());
+
+        runInheritIo(ldArgs);
     }
 
     private WasmModule generateMain(NamespaceName main, TypeInfos typeInfos) {