当前位置: 首页>>代码示例>>Golang>>正文


Golang Value.Equals方法代码示例

本文整理汇总了Golang中github.com/couchbaselabs/query/value.Value.Equals方法的典型用法代码示例。如果您正苦于以下问题:Golang Value.Equals方法的具体用法?Golang Value.Equals怎么用?Golang Value.Equals使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/couchbaselabs/query/value.Value的用法示例。


在下文中一共展示了Value.Equals方法的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: Apply

/*
This method evaluates the equal condition and returns a value
representing if the two operands are equal or not. If either
of the input operands are missing, return missing value, and
if they are null, then return null value. For all other types
call Equals to check if the two values are equal and return
its return value.
*/
func (this *Eq) Apply(context Context, first, second value.Value) (value.Value, error) {
	if first.Type() == value.MISSING || second.Type() == value.MISSING {
		return value.MISSING_VALUE, nil
	} else if first.Type() == value.NULL || second.Type() == value.NULL {
		return value.NULL_VALUE, nil
	}

	return value.NewValue(first.Equals(second)), nil
}
开发者ID:amarantha-k,项目名称:query,代码行数:17,代码来源:comp_eq.go

示例2: Apply

/*
This method checks to see if the values of the two input
expressions are equal, and if true then returns a null
value. If not it returns the first input value. Use the
Equals method for the two values to determine equality.
*/
func (this *NullIf) Apply(context Context, first, second value.Value) (value.Value, error) {
	if first.Type() == value.MISSING || second.Type() == value.MISSING {
		return value.MISSING_VALUE, nil
	} else if first.Type() == value.NULL || second.Type() == value.NULL {
		return value.NULL_VALUE, nil
	}

	if first.Equals(second) {
		return value.NULL_VALUE, nil
	} else {
		return first, nil
	}
}
开发者ID:amarantha-k,项目名称:query,代码行数:19,代码来源:func_cond_unknown.go

示例3: Apply

/*
WITHIN evaluates to TRUE if the right-hand-side first value contains
the left-hand-side second value (or name and value) as a child or
descendant (i.e. directly or indirectly). If either
of the input operands are missing, return missing value, and if
the first operand is not an array and the second is not an object
return a null value. Range through the descendants of the second
value object, and check if the first value is equal to each
descendant; return true. For all other cases return false.
*/
func (this *Within) Apply(context Context, first, second value.Value) (value.Value, error) {
	if first.Type() == value.MISSING || second.Type() == value.MISSING {
		return value.MISSING_VALUE, nil
	} else if second.Type() != value.ARRAY && second.Type() != value.OBJECT {
		return value.NULL_VALUE, nil
	}

	desc := second.Descendants(make([]interface{}, 0, 64))
	for _, d := range desc {
		if first.Equals(value.NewValue(d)) {
			return value.TRUE_VALUE, nil
		}
	}

	return value.FALSE_VALUE, nil
}
开发者ID:amarantha-k,项目名称:query,代码行数:26,代码来源:coll_within.go

示例4: Apply

/*
This method ranges through the array and returns the position
of the second value in the array (first value). If the input
values are of type missing return a missing value, and for all
non array values return null. If not found then return -1.
*/
func (this *ArrayPosition) Apply(context Context, first, second value.Value) (value.Value, error) {
	if first.Type() == value.MISSING || second.Type() == value.MISSING {
		return value.MISSING_VALUE, nil
	} else if first.Type() != value.ARRAY {
		return value.NULL_VALUE, nil
	}

	fa := first.Actual().([]interface{})
	for i, f := range fa {
		if second.Equals(value.NewValue(f)) {
			return value.NewValue(float64(i)), nil
		}
	}

	return value.NewValue(float64(-1)), nil
}
开发者ID:amarantha-k,项目名称:query,代码行数:22,代码来源:func_array.go

示例5: Apply

/*
IN evaluates to TRUE if the right-hand-side first value is an array
and directly contains the left-hand-side second value. If either
of the input operands are missing, return missing value, and
if the second is not an array return null. Range over the elements of the
array and check if any element is equal to the first value, return true.
For all other cases, return false.
*/
func (this *In) Apply(context Context, first, second value.Value) (value.Value, error) {
	if first.Type() == value.MISSING || second.Type() == value.MISSING {
		return value.MISSING_VALUE, nil
	} else if second.Type() != value.ARRAY {
		return value.NULL_VALUE, nil
	}

	sa := second.Actual().([]interface{})
	for _, s := range sa {
		if first.Equals(value.NewValue(s)) {
			return value.TRUE_VALUE, nil
		}
	}

	return value.FALSE_VALUE, nil
}
开发者ID:amarantha-k,项目名称:query,代码行数:24,代码来源:coll_in.go


注:本文中的github.com/couchbaselabs/query/value.Value.Equals方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。