asmentry.java

来自「用Java实现的编译器。把源代码编译成SPARC汇编程序」· Java 代码 · 共 43 行

// $Id: ASMEntry.java,v 1.4 1999/11/04 16:53:40 deberg Exp $

package java6035.tools.ASM;

/**
 * ASMEntry
 *
 * represents entries in ASM files: labels, directives, and
 * instructions.
 */

public abstract class ASMEntry 
{
    protected static final int ASMLABEL     = 0;
    protected static final int ASMDIRECTIVE = 1;
    protected static final int ASMCOMMENT   = 2;
    protected static final int SPARCINSTRUCTION = 3;

    protected abstract int asmkind();

    public boolean isASMLabel()
    {
	return asmkind() == ASMLABEL;
    }

    public boolean isASMDirective()
    {
	return asmkind() == ASMDIRECTIVE;
    }

    public boolean isASMComment()
    {
	return asmkind() == ASMCOMMENT;
    }

    public boolean isSPARCInstruction()
    {
	return asmkind() == SPARCINSTRUCTION;
    }
}