本文整理了Java中de.gaalop.dfg.Expression.replaceExpression()方法的一些代码示例，展示了Expression.replaceExpression()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Expression.replaceExpression()方法的具体详情如下：
包路径：de.gaalop.dfg.Expression
类名称：Expression
方法名：replaceExpression

Expression.replaceExpression介绍

[英]Replaces the old expression recursively by the given new one, iff the old one can be found in the DFG hierarchy.
[中]如果可以在DFG层次结构中找到旧表达式，则用给定的新表达式递归替换旧表达式。

代码示例

代码示例来源：origin: CallForSanity/Gaalop

@Override
public void replaceExpression(Expression old, Expression newExpression) {
  if (variable == old && newExpression instanceof Variable) {
    variable = (Variable) newExpression;
  }
  if (value == old) {
    value = newExpression;
  } else {
    // recursively try to replace expression
    value.replaceExpression(old, newExpression);
  }
}

代码示例来源：origin: CallForSanity/Gaalop

@Override
public void replaceExpression(Expression old, Expression newExpression) {
  if (expression == old) {
    expression = newExpression;
  } else {
    expression.replaceExpression(old, newExpression);
  }
}

代码示例来源：origin: CallForSanity/Gaalop

@Override
public void replaceExpression(Expression old, Expression newExpression) {
  if (old == operand) {
    operand = newExpression;
  } else {
    operand.replaceExpression(old, newExpression);
  }
}

代码示例来源：origin: CallForSanity/Gaalop

@Override
public void replaceExpression(Expression old, Expression newExpression) {
  for (int i = 0; i < args.size(); i++) {
    Expression arg = args.get(i);
    if (arg == old) {
      args.set(i, newExpression);
    } else {				
      arg.replaceExpression(old, newExpression);
    }            
  }
}

代码示例来源：origin: CallForSanity/Gaalop

left = newExpression;
} else if (left.isComposite()) {
  left.replaceExpression(old, newExpression);
  right = newExpression;
} else if (right.isComposite()) {
  right.replaceExpression(old, newExpression);

代码示例来源：origin: CallForSanity/Gaalop

@Override
public void replaceExpression(Expression old, Expression newExpression) {
  if (condition == old) {
    condition = newExpression;
  } else {
    condition.replaceExpression(old, newExpression);
  }
  replaceSubtree(positive, old, newExpression);
  if (negative != null) {
    replaceSubtree(negative, old, newExpression);
  }
}

代码示例来源：origin: CallForSanity/Gaalop

/**
 * Performs constant propagtion on an expression and returns the result expression
 * @param expression the expression for constant propagtion
 * @return the result expression, where constant variables are constant
 */
private Expression performConstantPropagationOnExpression(Expression expression) {
  dfgVisitorUsedVariables.getVariables().clear();
  expression.accept(dfgVisitorUsedVariables);
  for (VariableComponent varComp : dfgVisitorUsedVariables.getVariables()) {
    if (mapConstants.containsKey(varComp)) {
      // replace variable with constant
      if (expression == varComp.getReferredExpression()) { 
        expression = mapConstants.get(varComp);
      } else {
        expression.replaceExpression(varComp.getReferredExpression(), mapConstants.get(varComp));
      }
      setGraphModified();
    }
  }
  // do a constant folding on the value
  expression.accept(constantFolding);
  if (constantFolding.isGraphModified()) {
    setGraphModified();
  }
  return constantFolding.getResultExpr();
}