classPredicate

packages/bison-parser/src/Ast/Rule/Predicate.php:18

final class Predicate
    implements RhsItem

Public API: explicitly declared with @visibility public.

A semantic predicate %?{ ... } on a right-hand side.

Reading a predicatedoctest

$file = (new \BisonParser\Parser())->parse("%%\ns: %?{ new_syntax } 'a' ;\n");
    $file->rules()[0]->alternatives[0]->items[0]->code // => ' new_syntax '

Properties§

public string $code

source §

public Location $location

source §

Methods§

public function __construct(public string $code, public Location $location)

source §

Parameters

`$code`	`string`	The code without its braces
`$location`	`Location`	Where the `%?` is written

public function location(): Location

source §

Answers where the item begins.

Returns

Location Line and column of the `%?`

Test cases 1

PredicateTest::testLocation calls

Test cases 7§

Test cases that cover or call this symbol, from the coverage report and from the analyzed test sources.

Dedicated tests 1

PredicateTest::testLocation calls

Other tests reaching this symbol 6

Relations§

Instantiated in 1

new BisonParser\Syntax\RuleParser::item() packages/bison-parser/src/Syntax/RuleParser.php:139

Constant reads 1

class-const BisonParser\Printer\RhsPrinter::print() packages/bison-parser/src/Printer/RhsPrinter.php:50

Type checks 3