[refactoring] remove general Node struct

pkg/token/position.go

@@ -1,74 +0,0 @@
-package token
-
-type Position int
-
-//go:generate stringer -type=Position -output ./position_string.go
-const (
-	Start Position = iota
-	End
-	SemiColon
-	AltEnd
-	Ampersand
-	Name
-	Key
-	Var
-	ReturnType
-	CaseSeparator
-	LexicalVars
-	Params
-	Ref
-	Cast
-	Expr
-	InitExpr
-	CondExpr
-	IncExpr
-	True
-	Cond
-
-	Namespace
-	Static
-	Use
-	For
-	Foreach
-	Declare
-	Label
-	Finally
-	List
-	Default
-	Function
-	Alias
-	Equal
-	Array
-	Isset
-	Echo
-	Try
-	Catch
-	Unset
-
-	Stmts
-	VarList
-	ConstList
-	NameList
-	ParamList
-	ModifierList
-	ArrayPairList
-	CaseListStart
-	CaseListEnd
-	PropertyList
-	ParameterList
-	AdaptationList
-	LexicalVarList
-
-	CloseParenthesisToken
-)
-
-type Collection map[Position][]*Token
-
-func (c Collection) IsEmpty() bool {
-	for _, v := range c {
-		if len(v) > 0 {
-			return false
-		}
-	}
-	return true
-}

pkg/token/position_string.go

@@ -1,75 +0,0 @@
-// Code generated by "stringer -type=Position -output ./position_string.go"; DO NOT EDIT.
-
-package token
-
-import "strconv"
-
-func _() {
-	// An "invalid array index" compiler error signifies that the constant values have changed.
-	// Re-run the stringer command to generate them again.
-	var x [1]struct{}
-	_ = x[Start-0]
-	_ = x[End-1]
-	_ = x[SemiColon-2]
-	_ = x[AltEnd-3]
-	_ = x[Ampersand-4]
-	_ = x[Name-5]
-	_ = x[Key-6]
-	_ = x[Var-7]
-	_ = x[ReturnType-8]
-	_ = x[CaseSeparator-9]
-	_ = x[LexicalVars-10]
-	_ = x[Params-11]
-	_ = x[Ref-12]
-	_ = x[Cast-13]
-	_ = x[Expr-14]
-	_ = x[InitExpr-15]
-	_ = x[CondExpr-16]
-	_ = x[IncExpr-17]
-	_ = x[True-18]
-	_ = x[Cond-19]
-	_ = x[Namespace-20]
-	_ = x[Static-21]
-	_ = x[Use-22]
-	_ = x[For-23]
-	_ = x[Foreach-24]
-	_ = x[Declare-25]
-	_ = x[Label-26]
-	_ = x[Finally-27]
-	_ = x[List-28]
-	_ = x[Default-29]
-	_ = x[Function-30]
-	_ = x[Alias-31]
-	_ = x[Equal-32]
-	_ = x[Array-33]
-	_ = x[Isset-34]
-	_ = x[Echo-35]
-	_ = x[Try-36]
-	_ = x[Catch-37]
-	_ = x[Unset-38]
-	_ = x[Stmts-39]
-	_ = x[VarList-40]
-	_ = x[ConstList-41]
-	_ = x[NameList-42]
-	_ = x[ParamList-43]
-	_ = x[ModifierList-44]
-	_ = x[ArrayPairList-45]
-	_ = x[CaseListStart-46]
-	_ = x[CaseListEnd-47]
-	_ = x[PropertyList-48]
-	_ = x[ParameterList-49]
-	_ = x[AdaptationList-50]
-	_ = x[LexicalVarList-51]
-	_ = x[CloseParenthesisToken-52]
-}
-
-const _Position_name = "StartEndSemiColonAltEndAmpersandNameKeyVarReturnTypeCaseSeparatorLexicalVarsParamsRefCastExprInitExprCondExprIncExprTrueCondNamespaceStaticUseForForeachDeclareLabelFinallyListDefaultFunctionAliasEqualArrayIssetEchoTryCatchUnsetStmtsVarListConstListNameListParamListModifierListArrayPairListCaseListStartCaseListEndPropertyListParameterListAdaptationListLexicalVarListCloseParenthesisToken"
-
-var _Position_index = [...]uint16{0, 5, 8, 17, 23, 32, 36, 39, 42, 52, 65, 76, 82, 85, 89, 93, 101, 109, 116, 120, 124, 133, 139, 142, 145, 152, 159, 164, 171, 175, 182, 190, 195, 200, 205, 210, 214, 217, 222, 227, 232, 239, 248, 256, 265, 277, 290, 303, 314, 326, 339, 353, 367, 388}
-
-func (i Position) String() string {
-	if i < 0 || i >= Position(len(_Position_index)-1) {
-		return "Position(" + strconv.FormatInt(int64(i), 10) + ")"
-	}
-	return _Position_name[_Position_index[i]:_Position_index[i+1]]
-}