Made serialization working

src/blocklang.rs

@@ -1116,7 +1116,7 @@ pub struct BlockFunSnapshot {
 }
 
 impl BlockFunSnapshot {
-    pub fn serialize(&self) -> String {
+    pub fn serialize(&self) -> Value {
         let mut v = json!({
             "VERSION": 1,
         });
@@ -1132,12 +1132,10 @@ impl BlockFunSnapshot {
 
         v["areas"] = areas;
 
-        v.to_string()
+        v
     }
 
-    pub fn deserialize(s: &str) -> Result<BlockFunSnapshot, serde_json::Error> {
-        let v: Value = serde_json::from_str(s)?;
-
+    pub fn deserialize(v: &Value) -> Result<BlockFunSnapshot, serde_json::Error> {
         let mut a = vec![];
 
         let areas = &v["areas"];
@@ -1184,6 +1182,10 @@ impl BlockFun {
         }
     }
 
+    pub fn is_unset(&self) -> bool {
+        self.generation == 0
+    }
+
     pub fn block_language(&self) -> Rc<RefCell<BlockLanguage>> {
         self.language.clone()
     }
@@ -1817,12 +1819,34 @@ mod test {
         let mut bf = BlockFun::new(lang.clone());
 
         let sn = bf.save_snapshot();
-        let serialized = sn.serialize();
+        let serialized = sn.serialize().to_string();
         assert_eq!(serialized, "{\"VERSION\":1,\"areas\":[{\"auto_shrink\":false,\"blocks\":[],\"header\":\"\",\"size\":[16,16]}],\"current_block_id_counter\":0}");
 
-        let sn = BlockFunSnapshot::deserialize(&serialized).expect("No deserialization error");
+        let v: Value = serde_json::from_str(&serialized).unwrap();
+        let sn = BlockFunSnapshot::deserialize(&v).expect("No deserialization error");
         let mut bf2 = BlockFun::new(lang);
         let bf2 = bf2.load_snapshot(&sn);
     }
-}
 
+    #[test]
+    fn check_blockfun_serialize_1() {
+        let dsp_lib = synfx_dsp_jit::get_standard_library();
+        let lang = crate::blocklang_def::setup_hxdsp_block_language(dsp_lib);
+        let mut bf = BlockFun::new(lang.clone());
+
+        bf.instanciate_at(0, 0, 0, "+", None);
+
+        let sn = bf.save_snapshot();
+        let serialized = sn.serialize().to_string();
+        assert_eq!(serialized,
+        "{\"VERSION\":1,\"areas\":[{\"auto_shrink\":false,\"blocks\":[{\"block\":{\"color\":4,\"contains\":[null,null],\"expanded\":true,\"id\":1,\"inputs\":[\"\",\"\"],\"lbl\":\"+\",\"outputs\":[\"\"],\"rows\":2,\"typ\":\"+\"},\"x\":0,\"y\":0}],\"header\":\"\",\"size\":[16,16]}],\"current_block_id_counter\":1}");
+
+        let v: Value = serde_json::from_str(&serialized).unwrap();
+        let sn = BlockFunSnapshot::deserialize(&v).expect("No deserialization error");
+        let mut bf2 = BlockFun::new(lang);
+        bf2.load_snapshot(&sn);
+
+        let bv = bf2.block_at(0, 0, 0).unwrap();
+        assert!(bv.has_input(0));
+    }
+}

src/matrix.rs

@@ -10,7 +10,7 @@ pub use crate::nodes::MinMaxMonitorSamples;
 use crate::nodes::{NodeConfigurator, NodeGraphOrdering, NodeProg, MAX_ALLOCATED_NODES};
 pub use crate::CellDir;
 use crate::ScopeHandle;
-use crate::blocklang::BlockFun;
+use crate::blocklang::{BlockFun, BlockFunSnapshot};
 use crate::block_compiler::BlkJITCompileError;
 
 use std::collections::{HashMap, HashSet};
@@ -607,7 +607,7 @@ impl Matrix {
 
     /// Retrieve a handle to the block function `id`. In case you modify the block function,
     /// make sure to call [check_block_function].
-    pub fn get_block_function(&mut self, id: usize) -> Option<Arc<Mutex<BlockFun>>> {
+    pub fn get_block_function(&self, id: usize) -> Option<Arc<Mutex<BlockFun>>> {
         self.config.get_block_function(id)
     }
 
@@ -845,9 +845,21 @@ impl Matrix {
             tracker_id += 1;
         }
 
+        let mut block_funs: Vec<Option<BlockFunSnapshot>> = vec![];
+        let mut bf_id = 0;
+        while let Some(bf) = self.get_block_function(bf_id) {
+            block_funs.push(if bf.lock().unwrap().is_unset() {
+                None
+            } else {
+                Some(bf.lock().unwrap().save_snapshot())
+            });
+
+            bf_id += 1;
+        }
+
         let properties = self.properties.iter().map(|(k, v)| (k.to_string(), v.clone())).collect();
 
-        MatrixRepr { cells, params, atoms, patterns, properties, version: 2 }
+        MatrixRepr { cells, params, atoms, patterns, block_funs, properties, version: 2 }
     }
 
     /// Loads the matrix from a previously my [Matrix::to_repr]
@@ -879,6 +891,14 @@ impl Matrix {
             }
         }
 
+        for (bf_id, block_fun) in repr.block_funs.iter().enumerate() {
+            if let Some(block_fun) = block_fun {
+                if let Some(bf) = self.get_block_function(bf_id) {
+                    bf.lock().unwrap().load_snapshot(block_fun);
+                }
+            }
+        }
+
         let ret = self.sync();
 
         if let Some(obs) = &self.observer {

src/matrix_repr.rs

@@ -4,6 +4,7 @@
 
 use crate::dsp::{NodeId, ParamId, SAtom};
 use serde_json::{json, Value};
+use crate::blocklang::BlockFunSnapshot;
 
 #[derive(Debug, Clone, Copy)]
 pub struct CellRepr {
@@ -187,6 +188,7 @@ pub struct MatrixRepr {
     pub atoms: Vec<(ParamId, SAtom)>,
     pub patterns: Vec<Option<PatternRepr>>,
     pub properties: Vec<(String, SAtom)>,
+    pub block_funs: Vec<Option<BlockFunSnapshot>>,
     pub version: i64,
 }
 
@@ -289,8 +291,9 @@ impl MatrixRepr {
         let atoms = vec![];
         let patterns = vec![];
         let properties = vec![];
+        let block_funs = vec![];
 
-        Self { cells, params, atoms, patterns, properties, version: 2 }
+        Self { cells, params, atoms, patterns, block_funs, properties, version: 2 }
     }
 
     pub fn write_to_file(&mut self, filepath: &str) -> std::io::Result<()> {
@@ -398,6 +401,17 @@ impl MatrixRepr {
             }
         }
 
+        let block_funs = &v["block_funs"];
+        if let Value::Array(block_funs) = block_funs {
+            for p in block_funs.iter() {
+                m.block_funs.push(if p.is_object() {
+                    Some(BlockFunSnapshot::deserialize(&p)?)
+                } else {
+                    None
+                });
+            }
+        }
+
         Ok(m)
     }
 
@@ -468,6 +482,15 @@ impl MatrixRepr {
 
         v["patterns"] = patterns;
 
+        let mut block_funs = json!([]);
+        if let Value::Array(block_funs) = &mut block_funs {
+            for p in self.block_funs.iter() {
+                block_funs.push(if let Some(p) = p { p.serialize() } else { Value::Null });
+            }
+        }
+
+        v["block_funs"] = block_funs;
+
         v.to_string()
     }
 }

src/nodes/node_conf.rs

@@ -719,7 +719,7 @@ impl NodeConfigurator {
 
     /// Retrieve a handle to the block function `id`. In case you modify the block function,
     /// make sure to call [check_block_function].
-    pub fn get_block_function(&mut self, id: usize) -> Option<Arc<Mutex<BlockFun>>> {
+    pub fn get_block_function(&self, id: usize) -> Option<Arc<Mutex<BlockFun>>> {
         self.block_functions.get(id).map(|pair| pair.1.clone())
     }