Allow passing arguments to program, refactor directory structure

1 files changed, 74 insertions, 0 deletions

diff --git a/src/run.c b/src/run.c
new file mode 100644
index 0000000..7733c8d
--- /dev/null
+++ b/src/run.c
@@ -0,0 +1,74 @@
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "common/err.h"
+#include "load.h"
+#include "run.h"
+
+static void free_expression(UwUVMExpression *expr)
+{
+	if (expr->type == EX_FNCALL) {
+		for (size_t i = 0; i < expr->value.cll_value.num_args; i++)
+			free_expression(&expr->value.cll_value.args[i]);
+
+		free(expr->value.cll_value.args);
+	}
+
+	if (expr->type == EX_STRLIT)
+		free(expr->value.str_value);
+}
+
+void run_module(const char *progname, const char *modname, size_t num_args, char *args[])
+{
+	(void) num_args;
+	(void) args;
+
+	Program program = load_program(progname, modname);
+
+	UwUVMValue (*uwuvm_call_function)(UwUVMFunction *, size_t, UwUVMExpression *, UwUVMArgs *) = dlsym(program.api_library, "uwuvm_call_function");
+	char      *(*uwuvm_print_value  )(UwUVMValue                                             ) = dlsym(program.api_library, "uwuvm_print_value"  );
+	void       (*uwuvm_delet_value  )(UwUVMValue                                             ) = dlsym(program.api_library, "uwuvm_delet_value"  );
+
+	char *err = dlerror();
+	if (err)
+		error("library error: %s\n", err);
+
+	UwUVMExpression arg_expressions[num_args];
+
+	for (size_t i = 0; i < num_args; i++)
+		arg_expressions[i] = (UwUVMExpression) {
+			.type = EX_STRLIT,
+			.value = {
+				.str_value = args[i],
+			},
+		};
+
+	UwUVMValue result = uwuvm_call_function(program.main_function, num_args, arg_expressions, NULL);
+
+	char *str = uwuvm_print_value(result);
+	printf("%s\n", str);
+	free(str);
+
+	uwuvm_delet_value(result);
+
+	for (size_t i = 0; i < program.num_functions; i++) {
+		UwUVMFunction *function = program.functions[i];
+
+		if (function->type == MODULE_PLAIN) {
+			free_expression(function->value.plain);
+			free(function->value.plain);
+		}
+
+		free(function);
+	}
+
+	free(program.functions);
+
+	for (size_t i = 0; i < program.num_libraries; i++)
+		dlclose(program.libraries[i]);
+
+	if (program.libraries)
+		free(program.libraries);
+
+	dlclose(program.api_library);
+}