fix enum reader

Author: abenso

app/src/metadata_reader.c

@@ -289,13 +289,13 @@ parser_error_t read_enum_variant(parser_context_t *ctx, enum_variant_t *variant)
     CHECK_ERROR(read_u8(ctx, (uint8_t*)&variant->discriminant));
     printf("discriminant: %d\n", variant->discriminant);
 
-    //TODO: check why is this byte here
-    uint8_t unknown = 0;
-    CHECK_ERROR(read_u8(ctx, &unknown));
-    printf("unknown: %d\n", unknown);
-
-    //read value
-    CHECK_ERROR(read_link(ctx, &variant->value));
+    //read has_value
+    CHECK_ERROR(read_u8(ctx, (uint8_t*)&variant->has_value));
+    printf("has_value: %d\n", variant->has_value);
+    if (variant->has_value) {
+        //read value
+        CHECK_ERROR(read_link(ctx, &variant->value));
+    }
 
     return parser_ok;
 }
@@ -530,7 +530,7 @@ parser_error_t metadata_read(parser_context_t *ctx, parser_tx_t *txObj) {
     }
 
     // TODO: go through all schemes
-    for (uint32_t i = 0; i < 36; i++) {
+    for (uint32_t i = 0; i < txObj->schema.types.qty; i++) {
         // read type
         CHECK_ERROR(read_u8(ctx, (uint8_t*)&txObj->schema.types.schemes[i].type));
         switch (txObj->schema.types.schemes[i].type) {

app/src/parser_txdef.h

@@ -189,6 +189,7 @@ typedef struct {
 typedef struct {
     bytes_t name;
     uint8_t discriminant;
+    bool has_value;
     link_t value;
 } enum_variant_t;