json: decode/encode time.Time

vlib/json/json_test.v

@@ -1,4 +1,5 @@
 import json
+import time
 
 enum JobTitle {
 	manager
@@ -30,12 +31,14 @@ fn test_simple() {
 }
 
 fn bar<T>(payload string) ?Bar { // ?T doesn't work currently
-	result := json.decode(T, payload)?
+	result := json.decode(T, payload) ?
 	return result
 }
+
 struct Bar {
 	x string
 }
+
 fn test_generic() {
 	result := bar<Bar>('{"x":"test"}') or { Bar{} }
 	assert result.x == 'test'
@@ -44,6 +47,7 @@ fn test_generic() {
 struct User2 {
 	age      int
 	nums     []int
+	reg_date time.Time
 }
 
 struct User {
@@ -57,13 +61,9 @@ struct User {
 
 fn test_parse_user() {
 	s := '{"age": 10, "nums": [1,2,3], "type": 1, "lastName": "Johnson", "IsRegistered": true, "pet_animals": {"name": "Bob", "animal": "Dog"}}'
-	u2 := json.decode(User2, s) or {
+	u2 := json.decode(User2, s) or { exit(1) }
-		exit(1)
-	}
 	println(u2)
-	u := json.decode(User, s) or {
+	u := json.decode(User, s) or { exit(1) }
-		exit(1)
-	}
 	println(u)
 	assert u.age == 10
 	assert u.last_name == 'Johnson'
@@ -76,6 +76,23 @@ fn test_parse_user() {
 	assert u.pets == '{"name":"Bob","animal":"Dog"}'
 }
 
+fn test_encode_decode_time() {
+	user := User2{
+		age: 25
+		reg_date: time.new_time(year: 2020, month: 12, day: 22, hour: 7, minute: 23)
+	}
+	s := json.encode(user)
+	println(s)
+	assert s.contains('"reg_date":1608621780')
+	user2 := json.decode(User2, s) or {
+		assert false
+		return
+	}
+	assert user2.reg_date.str() == '2020-12-22 07:23:00'
+	println(user2)
+	println(user2.reg_date)
+}
+
 fn (mut u User) foo() string {
 	return json.encode(u)
 }
@@ -258,7 +275,7 @@ fn test_nested_type() {
 	}
 }
 
-struct Foo<T> {
+struct Foo <T> {
 pub:
 	name string
 	data T
@@ -268,9 +285,7 @@ fn test_generic_struct() {
 	foo_int := Foo<int>{'bar', 12}
 	foo_enc := json.encode(foo_int)
 	assert foo_enc == '{"name":"bar","data":12}'
-	foo_dec := json.decode(Foo<int>, foo_enc) or {
+	foo_dec := json.decode(Foo<int>, foo_enc) or { exit(1) }
-		exit(1)
-	}
 	assert foo_dec.name == 'bar'
 	assert foo_dec.data == 12
 }
@@ -331,7 +346,7 @@ fn test_list() {
 		return
 	}
 	assert list.id == 1
-	assert list.items == ["1", "2"]
+	assert list.items == ['1', '2']
 }
 
 fn test_list_no_id() {
@@ -340,7 +355,7 @@ fn test_list_no_id() {
 		return
 	}
 	assert list.id == 0
-	assert list.items == ["1", "2"]
+	assert list.items == ['1', '2']
 }
 
 fn test_list_no_items() {

vlib/math/big/big.v

@@ -6,6 +6,7 @@ module big
 #include "bn.h"
 [typedef]
 struct C.bn {
+mut:
 	array [32]u32
 }
 
@@ -105,6 +106,18 @@ pub fn from_string(input string) Number {
 	return n
 }
 
+pub fn from_string2(input string) Number {
+	mut n := Number{}
+	C.bignum_init(&n)
+	if input.len == 0 {
+		return from_int(0)
+	}
+	for i, c in input {
+		n.array[i] = u32(c - `0`)
+	}
+	return n
+}
+
 pub fn (n Number) int() int {
 	r := C.bignum_to_int(&n)
 	return r

vlib/math/big/big_test.v

@@ -78,6 +78,10 @@ fn test_mod() {
 }
 
 fn test_from_str() {
+	x := big.from_string2('23')
+	println('kek')
+	println(x.str())
+	exit(0)
 	assert big.from_string('').hexstr() == '0'
 	assert big.from_string('1').hexstr() == '1'
 	assert big.from_string('0').hexstr() == '0'

vlib/v/gen/json.v

@@ -126,6 +126,7 @@ fn (mut g Gen) gen_struct_enc_dec(type_info table.TypeInfo, styp string, mut enc
 		}
 		field_type := g.typ(field.typ)
 		field_sym := g.table.get_type_symbol(field.typ)
+		// First generate decoding
 		if field.attrs.contains('raw') {
 			dec.writeln('\tres.${c_name(field.name)} = tos4(cJSON_PrintUnformatted(' + 'js_get(root, "$name")));')
 		} else {
@@ -137,6 +138,10 @@ fn (mut g Gen) gen_struct_enc_dec(type_info table.TypeInfo, styp string, mut enc
 				dec.writeln('\tres.${c_name(field.name)} = $dec_name (js_get(root, "$name"));')
 			} else if field_sym.kind == .enum_ {
 				dec.writeln('\tres.${c_name(field.name)} = json__decode_u64(js_get(root, "$name"));')
+			} else if field_sym.name == 'time.Time' {
+				// time struct requires special treatment
+				// it has to be decoded from a unix timestamp number
+				dec.writeln('\tres.${c_name(field.name)} = time__unix(json__decode_u64(js_get(root, "$name")));')
 			} else if field_sym.kind == .alias {
 				alias := field_sym.info as table.Alias
 				parent_type := g.typ(alias.parent_type)
@@ -162,6 +167,7 @@ fn (mut g Gen) gen_struct_enc_dec(type_info table.TypeInfo, styp string, mut enc
 				dec.writeln('\tres.${c_name(field.name)} = *($field_type*) ${tmp}.data;')
 			}
 		}
+		// Encoding
 		mut enc_name := js_enc_name(field_type)
 		if !is_js_prim(field_type) {
 			if field_sym.kind == .alias {
@@ -171,10 +177,16 @@ fn (mut g Gen) gen_struct_enc_dec(type_info table.TypeInfo, styp string, mut enc
 		}
 		if field_sym.kind == .enum_ {
 			enc.writeln('\tcJSON_AddItemToObject(o, "$name", json__encode_u64(val.${c_name(field.name)}));')
+		} else {
+			if field_sym.name == 'time.Time' {
+				// time struct requires special treatment
+				// it has to be encoded as a unix timestamp number
+				enc.writeln('\tcJSON_AddItemToObject(o, "$name", json__encode_u64(val.${c_name(field.name)}.v_unix));')
 			} else {
 				enc.writeln('\tcJSON_AddItemToObject(o, "$name", ${enc_name}(val.${c_name(field.name)}));')
 			}
 		}
+	}
 }
 
 fn js_enc_name(typ string) string {
@@ -189,9 +201,8 @@ fn js_dec_name(typ string) string {
 }
 
 fn is_js_prim(typ string) bool {
-	return typ == 'int' || typ == 'string' || typ == 'bool' || typ == 'f32' || typ == 'f64' ||
+	return typ in
-		typ == 'i8' || typ == 'i16' || typ == 'i64' || typ == 'u16' || typ == 'u32' || typ == 'u64' ||
+		['int', 'string', 'bool', 'f32', 'f64', 'i8', 'i16', 'i64', 'u16', 'u32', 'u64', 'byte']
-		typ == 'byte'
 }
 
 fn (mut g Gen) decode_array(value_type table.Type) string {