add Time builtin

Signed-off-by: Flipez <code@brauser.io>

docs/docs/builtins/Time.md

@@ -0,0 +1,33 @@
+# Time
+
+
+
+
+## Module Function
+
+### sleep(INTEGER)
+> Returns `NIL`
+
+Stops the RocketLang routine for at least the stated duration in seconds
+
+
+```js
+🚀 > Time.sleep(2)
+```
+
+
+### unix()
+> Returns `INTEGER`
+
+Returns the current time as unix timestamp
+
+
+```js
+🚀 > Time.Unix()
+```
+
+
+
+## Properties
+| Name | Value |
+| ---- | ----- |

evaluator/evaluator_test.go

@@ -381,6 +381,7 @@ func TestBuiltinFunctions(t *testing.T) {
 		{`IO.open("fixtures/module.rl", 1, "0644")`, "wrong argument type on position 2: got=INTEGER, want=STRING"},
 		{`IO.open("fixtures/module.rl", "r", 1)`, "wrong argument type on position 3: got=INTEGER, want=STRING"},
 		{`IO.open("fixtures/module.rl", "nope", "0644").read(1)`, "undefined method `.read()` for ERROR"},
+		{"a = Time.unix(); Time.sleep(2); b = Time.unix(); b - a", 2},
 	}
 
 	for _, tt := range tests {

stdlib/std.go

@@ -15,6 +15,7 @@ func init() {
 	RegisterModule("JSON", "", jsonFunctions, jsonProperties)
 	RegisterModule("IO", "", ioFunctions, ioProperties)
 	RegisterModule("OS", "", osFunctions, osProperties)
+	RegisterModule("Time", "", timeFunctions, timeProperties)
 }
 
 func RegisterFunction(name string, layout object.MethodLayout, function func(object.Environment, ...object.Object) object.Object) {

stdlib/time.go

@@ -0,0 +1,41 @@
+package stdlib
+
+import (
+	"time"
+
+	"github.com/flipez/rocket-lang/object"
+)
+
+var timeFunctions = map[string]*object.BuiltinFunction{}
+var timeProperties = map[string]*object.BuiltinProperty{}
+
+func init() {
+	timeFunctions["sleep"] = object.NewBuiltinFunction(
+		"sleep",
+		object.MethodLayout{
+			Description: "Stops the RocketLang routine for at least the stated duration in seconds",
+			ArgPattern: object.Args(
+				object.Arg(object.INTEGER_OBJ),
+			),
+			ReturnPattern: object.Args(
+				object.Arg(object.NIL_OBJ),
+			),
+			Example: `🚀 > Time.sleep(2)`,
+		},
+		func(_ object.Environment, args ...object.Object) object.Object {
+			time.Sleep(time.Duration(args[0].(*object.Integer).Value) * time.Second)
+			return object.NIL
+		})
+	timeFunctions["unix"] = object.NewBuiltinFunction(
+		"unix",
+		object.MethodLayout{
+			Description: "Returns the current time as unix timestamp",
+			ReturnPattern: object.Args(
+				object.Arg(object.INTEGER_OBJ),
+			),
+			Example: `🚀 > Time.Unix()`,
+		},
+		func(_ object.Environment, args ...object.Object) object.Object {
+			return object.NewInteger(time.Now().Unix())
+		})
+}