rudimentary code execution

2 files changed, 62 insertions, 0 deletions

diff --git a/src/wren_inter/wren_inter.c b/src/wren_inter/wren_inter.c
new file mode 100644
index 0000000..a1b48e2
--- /dev/null
+++ b/src/wren_inter/wren_inter.c
@@ -0,0 +1,56 @@
+#include "wren_inter.h"
+#include "../utils/stringBuilder.h"
+#include <raylib.h>
+#include <stdio.h>
+#include <wren.h>
+
+StringBuilder stdout_sb = {0};
+
+void writeFn(WrenVM* vm, const char* text) {
+    AppendStringBuilder(&stdout_sb, text, '\n');
+}
+
+void errorFn(WrenVM* vm, WrenErrorType errorType,
+        const char* module, const int line,
+        const char* msg)
+{
+    switch (errorType)
+    {
+        case WREN_ERROR_COMPILE:
+            {
+                TraceLog(LOG_ERROR, "[%s line %d] [Error] %s", module, line, msg);
+            } break;
+        case WREN_ERROR_STACK_TRACE:
+            {
+                TraceLog(LOG_ERROR, "[%s line %d] in %s", module, line, msg);
+            } break;
+        case WREN_ERROR_RUNTIME:
+            {
+                TraceLog(LOG_ERROR, "[Runtime Error] %s", msg);
+            } break;
+    }
+}
+
+void EvaluateScript(char *script) {
+    TraceLog(LOG_INFO, "Evaluating %s...", script); 
+    FreeStringBuilder(&stdout_sb);
+    WrenConfiguration config;
+    wrenInitConfiguration(&config);
+    config.writeFn = writeFn;
+    config.errorFn = errorFn;
+
+    WrenVM* vm = wrenNewVM(&config);
+    if (vm == NULL) {
+        TraceLog(LOG_ERROR, "Failed to initialize a wren vm");
+        return;
+    }
+
+    WrenInterpretResult result = wrenInterpret(vm, "main", script);
+    switch (result) {
+        case WREN_RESULT_SUCCESS: break;
+        case WREN_RESULT_COMPILE_ERROR: break;
+        case WREN_RESULT_RUNTIME_ERROR: break;
+    }
+    printf("Wren outp: %s", stdout_sb.val);
+    wrenFreeVM(vm);
+}
diff --git a/src/wren_inter/wren_inter.h b/src/wren_inter/wren_inter.h
new file mode 100644
index 0000000..9601209
--- /dev/null
+++ b/src/wren_inter/wren_inter.h
@@ -0,0 +1,6 @@
+#ifndef WREN_INTER_H
+#define WREN_INTER_H
+
+void EvaluateScript(char *script);
+
+#endif // WREN_INTER_H