Introducing type argument in 'assignment' opcode handler.

src/libcoreint/opcode-structures.h

@@ -238,8 +238,9 @@ OP_CODE_DECL (greater_or_equal_than, T_IDX_IDX_IDX,
 // Assign value to LEFT operand based on value of RIGHT operand.
 
 /** L = R */
-OP_CODE_DECL (assignment, T_IDX_IDX,
-              value_left,
+OP_CODE_DECL (assignment, T_IDX_IDX_IDX,
+              var_left,
+              type_value_right,
               value_right)
 
 // Functions calls, declarations and argument handling

src/libcoreint/opcodes.c

@@ -278,7 +278,7 @@ GETOP_IMPL_3 (less_than, dst, var_left, var_right)
 GETOP_IMPL_3 (greater_than, dst, var_left, var_right)
 GETOP_IMPL_3 (less_or_equal_than, dst, var_left, var_right)
 GETOP_IMPL_3 (greater_or_equal_than, dst, var_left, var_right)
-GETOP_IMPL_2 (assignment, value_left, value_right)
+GETOP_IMPL_3 (assignment, var_left, type_value_right, value_right)
 GETOP_IMPL_2 (call_1, name_lit_idx, arg1_lit_idx)
 GETOP_IMPL_3 (call_2, name_lit_idx, arg1_lit_idx, arg2_lit_idx)
 GETOP_IMPL_3 (call_n, name_lit_idx, arg1_lit_idx, arg2_lit_idx)

src/libcoreint/opcodes.h

@@ -141,5 +141,18 @@ OPCODE
 }
 __packed;
 
+/**
+ * Descriptor of assignment's second argument
+ * that specifies type of third argument.
+ */
+typedef enum
+{
+  OPCODE_ARG_TYPE_SIMPLE, /**< ecma_SimpleValue_t */
+  OPCODE_ARG_TYPE_SMALLINT, /**< small integer: from -128 to 127 */
+  OPCODE_ARG_TYPE_NUMBER, /**< index of number literal */
+  OPCODE_ARG_TYPE_STRING, /**< index of string literal */
+  OPCODE_ARG_TYPE_VARIABLE /**< index of variable name */
+} opcode_arg_type_operand;
+
 #endif	/* OPCODES_H */