Extend host env, fixes, add vector

bindgen/assembly/index.ts

@@ -248,9 +248,6 @@ function JSONTypeToString<T>(t: T): string {
   if (t instanceof JSON.Integer) {
     return "Integer";
   }
-  if (t instanceof JSON.Float) {
-    return "Float";
-  }
   return "UNKNOWN TYPE";
 }
 
@@ -324,17 +321,6 @@ function decode<T, V = Uint8Array>(buf: V, name: string = ""): T {
     );
     // @ts-ignore
     return <T>(<JSON.Integer>val)._num;
-  } else if (isFloat<T>()) {
-    assert(
-      val instanceof JSON.Float,
-      "Value with Key: " +
-        name +
-        " with type " +
-        nameof<T>() +
-        " is not a Float"
-    );
-    // @ts-ignore
-    return <T>(<JSON.Float>val)._num;
   }
   if (val instanceof JSON.Null) {
     assert(

bindgen/src/JSONBuilder.ts

@@ -300,8 +300,7 @@ ${this.camelCaseToSnakeCaseExport(name)}
   }
 
   private _decode(obj: JSON.Obj): ${className} {
-    ${createDecodeStatements(_class).join('\n    ')}
-    log("invoke _decode for ${_class.name}");
+    ${createDecodeStatements(_class).join('\n    ')}    
     return this;
   }
 

sdk-core/assembly/address.ts

@@ -1,5 +1,5 @@
-import {Bytes} from "./bytes";
-import {util} from "./utils";
+import {Bytes} from './bytes';
+import {util} from './utils';
 
 export class Address extends Bytes {
   static fromBytes(data: Uint8Array): Address {
@@ -13,4 +13,24 @@ export class Address extends Bytes {
   toString(): string {
     return this.toHex();
   }
+
+  @inline
+  @operator('==')
+  static eq(a: Address, b: Address): bool {
+    if (a.length != b.length) {
+      return false;
+    }
+    for (var i = 0; i < a.length; i++) {
+      if (a[i] != b[i]) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  @inline
+  @operator('!=')
+  static ne(a: Address, b: Address): bool {
+    return !Address.eq(a, b);
+  }
 }

sdk-core/assembly/balance.ts

@@ -1,12 +1,29 @@
 import {u128} from 'idena-sdk-core';
 
 export class Balance {
+
+  @inline static get Zero(): Balance { return new Balance(u128.Zero); }
+
   value: u128;
 
   constructor(value: u128) {
     this.value = value;
   }
 
+  static min(a : Balance, b : Balance) : Balance {
+    if (a <= b) {
+      return a;
+    }
+    return b;    
+  }
+
+  static max(a : Balance, b : Balance) : Balance {
+    if (a >= b) {
+      return a;
+    }
+    return b;
+  }
+
   static from<T>(value: T): Balance {
     return new Balance(u128.from(value));
   }
@@ -32,6 +49,10 @@ export class Balance {
     return this.value.toUint8Array(true);
   }
 
+  toString() : string {
+    return this.value.toString();
+  }
+
   @operator('+')
   static add(a: Balance, b: Balance): Balance {
     return new Balance(u128.add(a.value, b.value));

sdk-core/assembly/env.ts

@@ -118,4 +118,10 @@ export namespace env {
 
     @external("env", "bytes_to_hex")
     export declare function bytes_to_hex(data: usize) : usize;
+
+    @external("env", "block_header")
+    export declare function blockHeader(height : u64) : usize;
+
+    @external("env", "keccak256")
+    export declare function keccak256(data : usize) : usize;
 }