json: handle field attributes

vlib/json/json_test.v

@@ -16,12 +16,11 @@ fn test_simple() {
 	assert y.age == 28
 }
 
-struct User {
+struct User2 {
 	age       	int
 	nums      	[]int
-	}
+}
 
-/*
 struct User {
 	age       	int
 	nums      	[]int
@@ -29,15 +28,17 @@ struct User {
 	is_registered	bool 	[json:IsRegistered]
     typ int  [json:'type']
 }
-*/
 
 fn test_parse_user() {
-	s := '{"age": 10, "nums": [1,2,3], "type": 0, "lastName": "Johnson", "IsRegistered": true}'
+	s := '{"age": 10, "nums": [1,2,3], "type": 1, "lastName": "Johnson", "IsRegistered": true}'
+	u2 := json.decode(User2, s) or {
+		exit(1)
+	}
+	println(u2)
 	u := json.decode(User, s) or {
 		exit(1)
 	}
 	println(u)
-	/*
 	assert u.age == 10
 	assert u.last_name == 'Johnson'
 	assert u.is_registered == true
@@ -45,8 +46,7 @@ fn test_parse_user() {
 	assert u.nums[0] == 1
 	assert u.nums[1] == 2
 	assert u.nums[2] == 3
-    assert u.typ == 0
+    assert u.typ == 1
-   */
 }
 
 /*

vlib/v/parser/parser.v

@@ -495,6 +495,7 @@ fn (mut p Parser) attribute() ast.Attr {
 	}
 	mut name := p.check_name()
 	if p.tok.kind == .colon {
+		name += ':'
 		p.next()
 		if p.tok.kind == .name {
 			name += p.check_name()

vlib/v/parser/struct.v

@@ -123,6 +123,7 @@ fn (mut p Parser) struct_decl() ast.StructDecl {
 			if p.tok.kind == .comment {
 				comment = p.comment()
 			}
+			// TODO merge table and ast Fields?
 			ast_fields << ast.StructField{
 				name: field_name
 				pos: field_pos
@@ -140,6 +141,7 @@ fn (mut p Parser) struct_decl() ast.StructDecl {
 				is_pub: is_field_pub
 				is_mut: is_field_mut
 				is_global: is_field_global
+				attr: attr.name
 			}
 			// println('struct field $ti.name $field_name')
 		}