mirror of https://github.com/status-im/consul.git
61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
package ini
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
)
|
|
|
|
// ParseStack is a stack that contains a container, the stack portion,
|
|
// and the list which is the list of ASTs that have been successfully
|
|
// parsed.
|
|
type ParseStack struct {
|
|
top int
|
|
container []AST
|
|
list []AST
|
|
index int
|
|
}
|
|
|
|
func newParseStack(sizeContainer, sizeList int) ParseStack {
|
|
return ParseStack{
|
|
container: make([]AST, sizeContainer),
|
|
list: make([]AST, sizeList),
|
|
}
|
|
}
|
|
|
|
// Pop will return and truncate the last container element.
|
|
func (s *ParseStack) Pop() AST {
|
|
s.top--
|
|
return s.container[s.top]
|
|
}
|
|
|
|
// Push will add the new AST to the container
|
|
func (s *ParseStack) Push(ast AST) {
|
|
s.container[s.top] = ast
|
|
s.top++
|
|
}
|
|
|
|
// MarkComplete will append the AST to the list of completed statements
|
|
func (s *ParseStack) MarkComplete(ast AST) {
|
|
s.list[s.index] = ast
|
|
s.index++
|
|
}
|
|
|
|
// List will return the completed statements
|
|
func (s ParseStack) List() []AST {
|
|
return s.list[:s.index]
|
|
}
|
|
|
|
// Len will return the length of the container
|
|
func (s *ParseStack) Len() int {
|
|
return s.top
|
|
}
|
|
|
|
func (s ParseStack) String() string {
|
|
buf := bytes.Buffer{}
|
|
for i, node := range s.list {
|
|
buf.WriteString(fmt.Sprintf("%d: %v\n", i+1, node))
|
|
}
|
|
|
|
return buf.String()
|
|
}
|