Simple tree system for skyline

SL_TREE.go

func (parser *Parser) ParserCreateAssignment() *LetStatement {
	stmt := &LetStatement{Token: parser.CurrentToken}
	if !parser.ExpectPeek(IDENT) {
		return nil
	}
	stmt.Name = &Ident{Token: parser.CurrentToken, Value: parser.CurrentToken.Literal}
	if !parser.ExpectPeek(ASSIGN) {
		return nil
	}
	parser.NT()
	stmt.Value = parser.parseExpression(LOWEST)
	for !parser.CurrentTokenIs(SEMICOLON) {
		if parser.CurrentTokenIs(EOF) {
			var root *TreeNode
			if FileCurrent.Filename == "" {
				root = &TreeNode{
					Type: SKYLINE_HIGH_DEFRED + "E | " + "REPL.skyline" + SKYLINE_RESTORE,
					Children: []*TreeNode{
						{
							Type: SUNRISE_HIGH_DEFINITION + "Error Information Tree" + SKYLINE_RESTORE,
							Children: []*TreeNode{
								{
									Type: SKYLINE_HIGH_DEFRED + "Code" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA + "[I]: 0000_Unknown" + SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SKYLINE_HIGH_DEFRED + "Type" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA +
												"[I] Parser Error (parse create assignment)" +
												SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SKYLINE_HIGH_DEFRED + "Message" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA +
												"[I]: Unterminated set/cause/let statement" + SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SUNRISE_LIGHT_DEFINITION + "Suggestion" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA + "[I]: Consider adding a semicolon to the end of the statement (';')" + SKYLINE_RESTORE,
										},
									},
								},
							},
						},
					},
				}
			} else {
				root = &TreeNode{
					Type: SKYLINE_HIGH_DEFRED + "E | " + FileCurrent.Get_Name() + SKYLINE_RESTORE,
					Children: []*TreeNode{
						{
							Type: SUNRISE_HIGH_DEFINITION + "Error Information Tree" + SKYLINE_RESTORE,
							Children: []*TreeNode{
								{
									Type: SKYLINE_HIGH_DEFRED + "Code" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA + "[I]: 0000_Unknown" + SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SKYLINE_HIGH_DEFRED + "Type" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA +
												"[I] Parser Error (parse create assignment)" +
												SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SKYLINE_HIGH_DEFRED + "Message" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA +
												"[I]: Unterminated set/cause/let statement" + SKYLINE_RESTORE,
										},
									},
								},
								{
									Type: SUNRISE_LIGHT_DEFINITION + "Suggestion" + SKYLINE_RESTORE,
									Children: []*TreeNode{
										{
											Type: SKYLINE_HIGH_DEFAQUA + "[I]: Consider adding a semicolon to the end of the statement (';')" + SKYLINE_RESTORE,
										},
									},
								},
							},
						},
					},
				}
			}
			RetTreeSys(root, "", true)
			parser.Errors = append(parser.Errors, "")
			return nil
		}
		parser.NT()
	}
	return stmt

}