一次扫描的ADA编译程序的类属处理方法

A NEW METHOD FOR IMPLEMENTATION OF GENERIC UNIT IN ONE PASS ADA COMPILERS

类属单元是ＡＤＡ语言的重大特色之一．一般的ＡＤＡ编译程序多数是多次扫描的，对类属单元的处理往往是单独进行一次扫描，先进行预处理．有的编译为了处理类属还进行多次扫描．本文提出了一个一次扫描的ＡＤＡ编译程序的类属处理的新方法，并应用于ＰＣ／ＵＮＩＸＡＤＡ－Ｚ编译系统。

Generic unit is an important aspect characteristic of ADA. Most ADA compilers make several passes, one of which devoted signally to the preprocession of generic unit. There are also compilers that scan more than once for the procession of generic units. This paper proposed a new approach to processing of generic unit in ADA compilers in one pass, which is applied to the compiler system of PC/UNIX ADA Z, and had some satisfactory results.