Enable evaluating blocks '{' '}'

smnp/runtime/evaluator.py

@@ -1,3 +1,4 @@
+from smnp.ast.node.block import BlockNode
 from smnp.ast.node.extend import ExtendNode
 from smnp.ast.node.function import FunctionDefinitionNode
 from smnp.ast.node.program import Program
@@ -70,10 +71,12 @@ def evaluate(node, environment):
 
     from smnp.runtime.evaluators.function import FunctionDefinitionEvaluator
     from smnp.runtime.evaluators.extend import ExtendEvaluator
+    from smnp.runtime.evaluators.block import BlockEvaluator
     result = Evaluator.oneOf(
         Evaluator.forNodes(ProgramEvaluator.evaluate, Program),
         Evaluator.forNodes(FunctionDefinitionEvaluator.evaluate, FunctionDefinitionNode),
         Evaluator.forNodes(ExtendEvaluator.evaluate, ExtendNode),
+        Evaluator.forNodes(BlockEvaluator.evaluate, BlockNode),
         expressionEvaluator()
     )(node, environment)
 

smnp/runtime/evaluators/block.py

@@ -1,11 +1,18 @@
-from smnp.runtime.evaluator import evaluate
-from smnp.runtime.tools import flatListNode
+from smnp.runtime.evaluator import evaluate, Evaluator
 
 
-def evaluateBlock(block, environment):
-    environment.scopes.append({})
-    for node in flatListNode(block):
-        evaluate(node, environment)
-    environment.scopes.pop(-1)
+class BlockEvaluator(Evaluator):
 
+    @classmethod
+    def evaluator(cls, node, environment):
+        for child in node.children:
+            evaluate(child, environment)
+
+#
+# def evaluateBlock(block, environment):
+#     environment.scopes.append({})
+#     for node in flatListNode(block):
+#         evaluate(node, environment)
+#     environment.scopes.pop(-1)
+#