Static object creation

src/stackframe.rs

@@ -1,4 +1,4 @@
-use crate::classfile::{ JavaClassFile, AttributeData };
+use crate::classfile::{ JavaClassFile, AttributeData, AbstractTypeDescription };
 use crate::heap_area::ObjectReference;
 
 #[derive(Copy, Clone, Debug)]
@@ -18,6 +18,23 @@ pub enum Value {
     Empty(),
 }
 
+impl Value {
+    fn default_for(t: AbstractTypeDescription) -> Self {
+        match t {
+            AbstractTypeDescription::Void()            => unreachable!(),
+            AbstractTypeDescription::Byte()            => Value::Byte(0),
+            AbstractTypeDescription::Char()            => Value::Char(0),
+            AbstractTypeDescription::Double()          => Value::Double(0),
+            AbstractTypeDescription::Float()           => ,
+            AbstractTypeDescription::Int()             => ,
+            AbstractTypeDescription::Long()            => ,
+            AbstractTypeDescription::Classname(String) => ,
+            AbstractTypeDescription::Short()           => ,
+            AbstractTypeDescription::Boolean()         => ,
+        }
+    }
+}
+
 #[derive(Debug)]
 pub struct OperandStack {
     stack: Box<[Value]>,