- Initial code for scope-based resource handling

Author: felipensp

core/opcode.cc

@@ -63,6 +63,8 @@ const char* get_opcode_name(Opcode opnum)
 	case OP_SUBSCRIPT_W: return "subsw";
 	case OP_SUBSCRIPT_R: return "subsr";
 	case OP_BIND:        return "bind";
+	case OP_BSCOPE:      return "bscope";
+	case OP_ESCOPE:      return "escope";
 	EMPTY_SWITCH_DEFAULT_CASE();
 	}
 #undef CASE

core/opcode.h

@@ -60,7 +60,9 @@ namespace clever {
 	&&OP_BW_RS,    \
 	&&OP_SUBSCRIPT_W,\
 	&&OP_SUBSCRIPT_R,\
-	&&OP_BIND
+	&&OP_BIND,     \
+	&&OP_BSCOPE,   \
+	&&OP_ESCOPE
 #endif
 
 /// VM opcodes
@@ -114,6 +116,8 @@ enum Opcode {
 	OP_SUBSCRIPT_W,//       Used for subscript operator (write mode)
 	OP_SUBSCRIPT_R,//       Used for subscript operator (read mode)
 	OP_BIND,       //       Used for runtime binding
+	OP_BSCOPE,     //       Used for begin scope marker
+	OP_ESCOPE,     //  50 - Used for end scope marker
 	NUM_OPCODES
 };
 

core/vm.cc

@@ -983,6 +983,12 @@ void VM::run()
 	}
 	DISPATCH;
 
+	OP(OP_BSCOPE):
+	DISPATCH;
+
+	OP(OP_ESCOPE):
+	DISPATCH;
+
 	OP(OP_HALT): goto exit;
 	END_OPCODES;