exprstmt.java

来自「JDK1.4编译器后端」· Java 代码 · 共 189 行

package AST;
import java.util.HashSet;import java.util.LinkedHashSet;import java.io.FileNotFoundException;import java.io.File;import java.util.*;import beaver.*;import java.util.ArrayList;import java.util.zip.*;import java.io.*;


public class ExprStmt extends Stmt implements Cloneable {
    public void flushCache() {
        super.flushCache();
        isDAafter_Variable_values = null;
        isDUafter_Variable_values = null;
        canCompleteNormally_computed = false;
    }
     @SuppressWarnings({"unchecked", "cast"})  public ExprStmt clone() throws CloneNotSupportedException {
        ExprStmt node = (ExprStmt)super.clone();
        node.isDAafter_Variable_values = null;
        node.isDUafter_Variable_values = null;
        node.canCompleteNormally_computed = false;
        node.in$Circle(false);
        node.is$Final(false);
    return node;
    }
     @SuppressWarnings({"unchecked", "cast"})  public ExprStmt copy() {
      try {
          ExprStmt node = (ExprStmt)clone();
          if(children != null) node.children = (ASTNode[])children.clone();
          return node;
      } catch (CloneNotSupportedException e) {
      }
      System.err.println("Error: Could not clone node of type " + getClass().getName() + "!");
      return null;
    }
     @SuppressWarnings({"unchecked", "cast"})  public ExprStmt fullCopy() {
        ExprStmt res = (ExprStmt)copy();
        for(int i = 0; i < getNumChildNoTransform(); i++) {
          ASTNode node = getChildNoTransform(i);
          if(node != null) node = node.fullCopy();
          res.setChild(node, i);
        }
        return res;
    }
    // Declared in PrettyPrint.jadd at line 564


  public void toString(StringBuffer s) {
    getExpr().toString(s);
    s.append(";\n");
  }

    // Declared in CreateBCode.jrag at line 1184


  public void createBCode(CodeGeneration gen) {
    super.createBCode(gen);
    getExpr().createBCode(gen);
    if(needsPop())
      getExpr().type().emitPop(gen);
  }

    // Declared in java.ast at line 3
    // Declared in java.ast line 203

    public ExprStmt() {
        super();


    }

    // Declared in java.ast at line 10


    // Declared in java.ast line 203
    public ExprStmt(Expr p0) {
        setChild(p0, 0);
    }

    // Declared in java.ast at line 14


  protected int numChildren() {
    return 1;
  }

    // Declared in java.ast at line 17

  public boolean mayHaveRewrite() { return false; }

    // Declared in java.ast at line 2
    // Declared in java.ast line 203
    public void setExpr(Expr node) {
        setChild(node, 0);
    }

    // Declared in java.ast at line 5

    public Expr getExpr() {
        return (Expr)getChild(0);
    }

    // Declared in java.ast at line 9


    public Expr getExprNoTransform() {
        return (Expr)getChildNoTransform(0);
    }

    // Declared in DefiniteAssignment.jrag at line 523
 @SuppressWarnings({"unchecked", "cast"})     public boolean isDAafter(Variable v) {
        Object _parameters = v;
if(isDAafter_Variable_values == null) isDAafter_Variable_values = new java.util.HashMap(4);
        if(isDAafter_Variable_values.containsKey(_parameters))
            return ((Boolean)isDAafter_Variable_values.get(_parameters)).booleanValue();
        int num = boundariesCrossed;
        boolean isFinal = this.is$Final();
        boolean isDAafter_Variable_value = isDAafter_compute(v);
        if(isFinal && num == boundariesCrossed)
            isDAafter_Variable_values.put(_parameters, Boolean.valueOf(isDAafter_Variable_value));
        return isDAafter_Variable_value;
    }

    private boolean isDAafter_compute(Variable v) {  return getExpr().isDAafter(v);  }

    // Declared in DefiniteAssignment.jrag at line 995
 @SuppressWarnings({"unchecked", "cast"})     public boolean isDUafter(Variable v) {
        Object _parameters = v;
if(isDUafter_Variable_values == null) isDUafter_Variable_values = new java.util.HashMap(4);
        if(isDUafter_Variable_values.containsKey(_parameters))
            return ((Boolean)isDUafter_Variable_values.get(_parameters)).booleanValue();
        int num = boundariesCrossed;
        boolean isFinal = this.is$Final();
        boolean isDUafter_Variable_value = isDUafter_compute(v);
        if(isFinal && num == boundariesCrossed)
            isDUafter_Variable_values.put(_parameters, Boolean.valueOf(isDUafter_Variable_value));
        return isDUafter_Variable_value;
    }

    private boolean isDUafter_compute(Variable v) {  return getExpr().isDUafter(v);  }

    // Declared in UnreachableStatements.jrag at line 58
 @SuppressWarnings({"unchecked", "cast"})     public boolean canCompleteNormally() {
        if(canCompleteNormally_computed)
            return canCompleteNormally_value;
        int num = boundariesCrossed;
        boolean isFinal = this.is$Final();
        canCompleteNormally_value = canCompleteNormally_compute();
        if(isFinal && num == boundariesCrossed)
            canCompleteNormally_computed = true;
        return canCompleteNormally_value;
    }

    private boolean canCompleteNormally_compute() {  return reachable();  }

    // Declared in CodeGeneration.jrag at line 27
 @SuppressWarnings({"unchecked", "cast"})     public int sourceLineNumber() {
        int sourceLineNumber_value = sourceLineNumber_compute();
        return sourceLineNumber_value;
    }

    private int sourceLineNumber_compute() {  return getExpr().findFirstSourceLineNumber();  }

    // Declared in CreateBCode.jrag at line 207
 @SuppressWarnings({"unchecked", "cast"})     public boolean needsPop() {
        boolean needsPop_value = needsPop_compute();
        return needsPop_value;
    }

    private boolean needsPop_compute() {  return getExpr().needsPop();  }

    // Declared in DefiniteAssignment.jrag at line 524
    public boolean Define_boolean_isDAbefore(ASTNode caller, ASTNode child, Variable v) {
        if(caller == getExprNoTransform()) {
            return isDAbefore(v);
        }
        return getParent().Define_boolean_isDAbefore(this, caller, v);
    }

    // Declared in DefiniteAssignment.jrag at line 996
    public boolean Define_boolean_isDUbefore(ASTNode caller, ASTNode child, Variable v) {
        if(caller == getExprNoTransform()) {
            return isDUbefore(v);
        }
        return getParent().Define_boolean_isDUbefore(this, caller, v);
    }

public ASTNode rewriteTo() {
    return super.rewriteTo();
}

}