1 files changed, 30 insertions, 0 deletions
diff --git a/tools/wasm.h b/tools/wasm.h
index 07252fc..bf85490 100644
--- a/tools/wasm.h
+++ b/tools/wasm.h
@@ -22,6 +22,8 @@
 #define EXPORT_GLOBALIDX 0x03
 
 /* WebAssembly opcodes */
+#define WASM_IF            0x04
+#define WASM_ELSE          0x05
 #define WASM_END           0x0B
 #define WASM_CALL          0x10
 
@@ -43,3 +45,31 @@
 #define WASM_I32_SUB       0x6B
 #define WASM_I32_MUL       0x6C
 #define WASM_I32_DIV_U     0x6E
+
+static inline int is_valid_valtype(char value_type)
+{
+	if (value_type == VALTYPE_I32)
+		return 1;
+
+	if (value_type == VALTYPE_I64 ||
+	    value_type == VALTYPE_F32 ||
+	    value_type == VALTYPE_F64)
+		PRERR("Only type i32 is recognized for now");
+
+	return -1;
+
+	/* return */
+	/* 	value_type == VALTYPE_I32 || */
+	/* 	value_type == VALTYPE_I64 || */
+	/* 	value_type == VALTYPE_F32 || */
+	/* 	value_type == VALTYPE_F64; */
+}
+
+static inline int is_valid_exportdesc(char desc)
+{
+	return
+		desc == EXPORT_FUNCIDX ||
+		desc == EXPORT_TABLEIDX ||
+		desc == EXPORT_MEMIDX ||
+		desc == EXPORT_GLOBALIDX;
+}