0.7.2 print out floats down to 1e-15 #25

Author: maciejhirsz

src/codegen.rs

@@ -54,7 +54,7 @@ pub trait Generator {
         self.write_digits_from_u64(num as u64, &mut length);
 
         let mut fract = num.fract();
-        if fract < 1e-10 {
+        if fract < 1e-16 {
             return;
         }
 
@@ -64,7 +64,7 @@ pub trait Generator {
         fract = fract.fract();
         length += 2;
 
-        while length < 17 && fract > 0.01 {
+        while length < 17 && fract > 1e-15 {
             fract *= 10.0;
             self.write_char((fract as u8) + b'0');
             fract = fract.fract();

src/value.rs

@@ -107,12 +107,12 @@ impl JsonValue {
     /// - empty object (`object!{}`)
     pub fn is_empty(&self) -> bool {
         match *self {
-            JsonValue::String(ref string)   => string.is_empty(),
-            JsonValue::Number(ref float)    => !float.is_normal(),
-            JsonValue::Boolean(ref boolean) => !boolean,
-            JsonValue::Null                 => true,
-            JsonValue::Array(ref vec)       => vec.is_empty(),
-            JsonValue::Object(ref btree)    => btree.is_empty(),
+            JsonValue::String(ref value)  => value.is_empty(),
+            JsonValue::Number(ref value)  => !value.is_normal(),
+            JsonValue::Boolean(ref value) => !value,
+            JsonValue::Null               => true,
+            JsonValue::Array(ref value)   => value.is_empty(),
+            JsonValue::Object(ref value)  => value.is_empty(),
         }
     }
 
@@ -462,7 +462,7 @@ impl IndexMut<usize> for JsonValue {
             _ => {
                 *self = JsonValue::new_array();
                 self.push(JsonValue::Null).unwrap();
-                &mut self[0]
+                self.index_mut(index)
             }
         }
     }
@@ -521,7 +521,7 @@ impl<'a> IndexMut<&'a str> for JsonValue {
             },
             _ => {
                 *self = JsonValue::new_object();
-                &mut self[index]
+                self.index_mut(index)
             }
         }
     }

tests/lib.rs

@@ -135,6 +135,11 @@ fn stringify_integer() {
     assert_eq!(stringify(42), "42");
 }
 
+#[test]
+fn stringify_small_number() {
+    assert_eq!(stringify(0.000000000000001), "0.000000000000001");
+}
+
 #[test]
 fn stringify_true() {
     assert_eq!(stringify(true), "true");