/*
* @(#)InlineReturnStatement.java 1.6 95/09/14 Arthur van Hoff
*
* Copyright (c) 1994 Sun Microsystems, Inc. All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*/
package sun.tools.tree;
import sun.tools.java.*;
import sun.tools.asm.Assembler;
import sun.tools.asm.Label;
import java.io.PrintStream;
public
class InlineReturnStatement extends Statement {
Expression expr;
/**
* Constructor
*/
public InlineReturnStatement(int where, Expression expr) {
super(INLINERETURN, where);
this.expr = expr;
}
/**
* Get the destination context of a break
*/
Context getDestination(Context ctx) {
for (; ctx != null ; ctx = ctx.prev) {
if ((ctx.node != null) && ((ctx.node.op == INLINEMETHOD) || (ctx.node.op == INLINENEWINSTANCE))) {
return ctx;
}
}
return null;
}
/**
* Inline
*/
public Statement inline(Environment env, Context ctx) {
if (expr != null) {
expr = expr.inlineValue(env, ctx);
}
return this;
}
/**
* Create a copy of the statement for method inlining
*/
public Statement copyInline(Context ctx, boolean valNeeded) {
InlineReturnStatement s = (InlineReturnStatement)clone();
if (expr != null) {
expr = expr.copyInline(ctx);
}
return s;
}
/**
* The cost of inlining this statement
*/
public int costInline(int thresh) {
return 1 + ((expr != null) ? expr.costInline(thresh) : 0);
}
/**
* Code
*/
public void code(Environment env, Context ctx, Assembler asm) {
if (expr != null) {
expr.codeValue(env, ctx, asm);
}
CodeContext destctx = (CodeContext)getDestination(ctx);
asm.add(where, opc_goto, destctx.breakLabel);
}
/**
* Print
*/
public void print(PrintStream out, int indent) {
super.print(out, indent);
out.print("inline-return");
if (expr != null) {
out.print(" ");
expr.print(out);
}
out.print(";");
}
}