From c300d18a757a761fbc77fe42593b586b900bbc9a Mon Sep 17 00:00:00 2001
From: Tom Alexander <tom@fizz.buzz>
Date: Sun, 14 Jun 2020 17:59:57 -0400
Subject: [PATCH] Implement the outstanding type casts for serde_json.

---
 src/bin.rs | 69 ++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 54 insertions(+), 15 deletions(-)

diff --git a/src/bin.rs b/src/bin.rs
index 1a031fd..3a7eade 100644
--- a/src/bin.rs
+++ b/src/bin.rs
@@ -355,24 +355,63 @@ impl Castable for serde_json::Value {
                 })
                 .ok(),
             (serde_json::Value::Number(_), "number") => Some(IceResult::from_borrowed(self)),
-            (serde_json::Value::Null, "number") => None,
-            (serde_json::Value::Bool(_), "number") => None,
+            (serde_json::Value::Null, "number") => {
+                Some(IceResult::from_owned(serde_json::Value::Number(0.into())))
+            }
+            (serde_json::Value::Bool(boolean), "number") => {
+                if *boolean {
+                    Some(IceResult::from_owned(serde_json::Value::Number(1.into())))
+                } else {
+                    Some(IceResult::from_owned(serde_json::Value::Number(0.into())))
+                }
+            }
             (serde_json::Value::Array(_), "number") => None,
             (serde_json::Value::Object(_), "number") => None,
 
-            (serde_json::Value::String(text), "string") => todo!(),
-            (serde_json::Value::Number(_), "string") => todo!(),
-            (serde_json::Value::Null, "string") => todo!(),
-            (serde_json::Value::Bool(_), "string") => todo!(),
-            (serde_json::Value::Array(_), "string") => todo!(),
-            (serde_json::Value::Object(_), "string") => todo!(),
-
-            (serde_json::Value::String(text), "boolean") => todo!(),
-            (serde_json::Value::Number(_), "boolean") => todo!(),
-            (serde_json::Value::Null, "boolean") => todo!(),
-            (serde_json::Value::Bool(_), "boolean") => todo!(),
-            (serde_json::Value::Array(_), "boolean") => todo!(),
-            (serde_json::Value::Object(_), "boolean") => todo!(),
+            (serde_json::Value::String(text), "string") => Some(IceResult::from_borrowed(self)),
+            (serde_json::Value::Number(num), "string") => Some(IceResult::from_owned(
+                serde_json::Value::String(num.to_string()),
+            )),
+            (serde_json::Value::Null, "string") => Some(IceResult::from_owned(
+                serde_json::Value::String("null".to_owned()),
+            )),
+            (serde_json::Value::Bool(boolean), "string") => Some(IceResult::from_owned(
+                serde_json::Value::String(boolean.to_string()),
+            )),
+            (serde_json::Value::Array(_), "string") => Some(IceResult::from_owned(
+                serde_json::Value::String(self.render(&Vec::new()).unwrap_or("".to_owned())),
+            )),
+            (serde_json::Value::Object(_), "string") => Some(IceResult::from_owned(
+                serde_json::Value::String(self.render(&Vec::new()).unwrap_or("".to_owned())),
+            )),
+
+            (serde_json::Value::String(text), "boolean") => {
+                if text.is_empty() {
+                    Some(IceResult::from_owned(serde_json::Value::Bool(false)))
+                } else {
+                    Some(IceResult::from_owned(serde_json::Value::Bool(true)))
+                }
+            }
+            (serde_json::Value::Number(json_num), "boolean") => {
+                Some(IceResult::from_owned(serde_json::Value::Bool(
+                    match (json_num.as_u64(), json_num.as_i64(), json_num.as_f64()) {
+                        (Some(num), _, _) => num != 0,
+                        (_, Some(num), _) => num != 0,
+                        (_, _, Some(num)) => num != 0.0 && !num.is_nan(),
+                        _ => false,
+                    },
+                )))
+            }
+            (serde_json::Value::Null, "boolean") => {
+                Some(IceResult::from_owned(serde_json::Value::Bool(false)))
+            }
+            (serde_json::Value::Bool(_), "boolean") => Some(IceResult::from_borrowed(self)),
+            (serde_json::Value::Array(_), "boolean") => {
+                Some(IceResult::from_owned(serde_json::Value::Bool(true)))
+            }
+            (serde_json::Value::Object(_), "boolean") => {
+                Some(IceResult::from_owned(serde_json::Value::Bool(true)))
+            }
 
             (_, _) => panic!("Unimplemented cast"),
         }