Support dynamic source factors in platform runtime

Cargo.lock

@@ -129,6 +129,7 @@ dependencies = [
  "indexmap",
  "rhai",
  "serde",
+ "serde_json",
  "thiserror",
 ]
 
@@ -338,6 +339,12 @@ version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
+[[package]]
+name = "ryu"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9774ba4a74de5f7b1c1451ed6cd5285a32eddb5cccb8cc655a4e50009e06477f"
+
 [[package]]
 name = "serde"
 version = "1.0.228"
@@ -370,15 +377,15 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.149"
+version = "1.0.145"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
+checksum = "402a6f66d8c709116cf22f558eab210f5a50187f702eb4d7e5ef38d9a7f1c79c"
 dependencies = [
  "itoa",
  "memchr",
+ "ryu",
  "serde",
  "serde_core",
- "zmij",
 ]
 
 [[package]]
@@ -618,9 +625,3 @@ dependencies = [
  "quote",
  "syn",
 ]
-
-[[package]]
-name = "zmij"
-version = "1.0.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"

Cargo.toml

@@ -16,4 +16,5 @@ chrono = { version = "=0.4.44", features = ["serde"] }
 indexmap = { version = "=2.11.4", features = ["serde"] }
 rhai = { version = "=1.23.6", features = ["sync"] }
 serde = { version = "=1.0.228", features = ["derive"] }
+serde_json = "=1.0.145"
 thiserror = "=2.0.18"

crates/fidc-core/Cargo.toml

@@ -10,4 +10,5 @@ chrono.workspace = true
 indexmap.workspace = true
 rhai.workspace = true
 serde.workspace = true
+serde_json.workspace = true
 thiserror.workspace = true

crates/fidc-core/src/data.rs

@@ -176,6 +176,8 @@ pub struct DailyFactorSnapshot {
     pub pe_ttm: f64,
     pub turnover_ratio: Option<f64>,
     pub effective_turnover_ratio: Option<f64>,
+    #[serde(default)]
+    pub extra_factors: BTreeMap<String, f64>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -938,6 +940,12 @@ fn read_factors(path: &Path) -> Result<Vec<DailyFactorSnapshot>, DataSetError> {
             pe_ttm: row.parse_f64(4)?,
             turnover_ratio: row.parse_optional_f64(5),
             effective_turnover_ratio: row.parse_optional_f64(6),
+            extra_factors: row
+                .fields
+                .get(7)
+                .filter(|value| !value.trim().is_empty())
+                .and_then(|value| serde_json::from_str::<BTreeMap<String, f64>>(value).ok())
+                .unwrap_or_default(),
         });
     }
     Ok(snapshots)

crates/fidc-core/src/platform_expr_strategy.rs

@@ -168,6 +168,7 @@ struct StockExpressionState {
     stock_ma10: f64,
     stock_ma20: f64,
     stock_ma30: f64,
+    extra_factors: BTreeMap<String, f64>,
 }
 
 #[derive(Debug, Clone)]
@@ -690,6 +691,7 @@ impl PlatformExprStrategy {
             stock_ma10,
             stock_ma20,
             stock_ma30,
+            extra_factors: factor.extra_factors.clone(),
         })
     }
 
@@ -828,6 +830,9 @@ impl PlatformExprStrategy {
             factors.insert("ma10".into(), Dynamic::from(stock.stock_ma10));
             factors.insert("ma20".into(), Dynamic::from(stock.stock_ma20));
             factors.insert("ma30".into(), Dynamic::from(stock.stock_ma30));
+            for (key, value) in &stock.extra_factors {
+                factors.insert(key.clone().into(), Dynamic::from(*value));
+            }
             scope.push("factors", factors);
         }
         if let Some(position) = position {
@@ -1050,7 +1055,7 @@ impl PlatformExprStrategy {
             "is_new_listing" => Some(if stock.is_new_listing { 1.0 } else { 0.0 }),
             "candidate_market_cap" => Some(candidate.market_cap_bn),
             "candidate_free_float_cap" => Some(candidate.free_float_cap_bn),
-            _ => None,
+            other => stock.extra_factors.get(other).copied(),
         }
     }