diff options
Diffstat (limited to 'vendor/github.com/aws/aws-sdk-go/internal/ini/parse_stack.go')
-rw-r--r-- | vendor/github.com/aws/aws-sdk-go/internal/ini/parse_stack.go | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/internal/ini/parse_stack.go b/vendor/github.com/aws/aws-sdk-go/internal/ini/parse_stack.go new file mode 100644 index 000000000..7f01cf7c7 --- /dev/null +++ b/vendor/github.com/aws/aws-sdk-go/internal/ini/parse_stack.go @@ -0,0 +1,60 @@ +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() +} |