<?php declare(strict_types=1);
namespace PhpParser;
use PhpParser\Node\Expr;
interface PrettyPrinter {
/**
* Pretty prints an array of statements.
*
* @param Node[] $stmts Array of statements
*
* @return string Pretty printed statements
*/
public function prettyPrint(array $stmts): string;
/**
* Pretty prints an expression.
*
* @param Expr $node Expression node
*
* @return string Pretty printed node
*/
public function prettyPrintExpr(Expr $node): string;
/**
* Pretty prints a file of statements (includes the opening <?php tag if it is required).
*
* @param Node[] $stmts Array of statements
*
* @return string Pretty printed statements
*/
public function prettyPrintFile(array $stmts): string;
/**
* Perform a format-preserving pretty print of an AST.
*
* The format preservation is best effort. For some changes to the AST the formatting will not
* be preserved (at least not locally).
*
* In order to use this method a number of prerequisites must be satisfied:
* * The startTokenPos and endTokenPos attributes in the lexer must be enabled.
* * The CloningVisitor must be run on the AST prior to modification.
* * The original tokens must be provided, using the getTokens() method on the lexer.
*
* @param Node[] $stmts Modified AST with links to original AST
* @param Node[] $origStmts Original AST with token offset information
* @param Token[] $origTokens Tokens of the original code
*/
public function printFormatPreserving(array $stmts, array $origStmts, array $origTokens): string;
}
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