classNumberScanner

packages/sql-parser/src/PostgreSql/Lexer/NumberScanner.php:19

final class NumberScanner

Restricted visibility: declared "@visibility root". Code outside that scope must not name this declaration.

Reads PostgreSQL's numeric literals and positional parameters.

An integer that fits in 32 bits is ICONST and any other number is FCONST, whatever its base. A digit followed by a letter, and a parameter followed by one, are the trailing junk the scanner rejects.

Methods§

public function scan(Scan $scan): Lexeme|null

source §

Reads the number or parameter at the cursor, if one starts there.

Parameters

$scan Scan The tokenization in progress

Returns

Lexeme|null The lexeme, or null when no number starts here

Throws

LexicalException When the literal is malformed or followed by junk

Test cases 4

Called from 1

method-call SqlParser\PostgreSql\Lexer\PostgreSqlLexer::scan() packages/sql-parser/src/PostgreSql/Lexer/PostgreSqlLexer.php:57

Calls 6

method-call NumberScanner::rejectJunk() line 36
method-call Scan::lexeme() line 38
static-call NumberScanner::fitsInt32() line 44
static-call LexicalException::unexpectedCharacter() line 47
function-call preg_match line 60
function-call str_contains line 60

public function rejectJunk(Scan $scan, int $start): void

source §

Rejects an identifier character right after a literal.

Parameters

`$scan`	`Scan`	The tokenization in progress, positioned after the literal
`$start`	`int`	Offset the literal began at

Throws

LexicalException When junk follows

Test cases 1

NumberScannerTest::testRejectJunk calls

Called from 3

Calls 2

static-call Scan::startsIdentifier() line 75
static-call LexicalException::unexpectedCharacter() line 76

public static function fitsInt32(string $literal): bool

source §

Reports whether an integer literal, in any base, fits in a signed 32-bit integer.

Parameters

$literal string The literal as written, underscores included

Returns

bool True when it fits

Test cases 1

NumberScannerTest::testFitsInt32 calls

Called from 2

Calls 6

function-call str_replace line 89
function-call strtolower line 90
function-call substr line 90
function-call ltrim line 96
function-call strlen line 99
function-call strcmp line 99

Test cases 8§

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

Dedicated tests 6

Other tests reaching this symbol 2

PostgreSqlLexerTest calls
PostgreSqlParserTest calls

Relations§

Instantiated in 1

new SqlParser\PostgreSql\Lexer\PostgreSqlLexer::__construct() packages/sql-parser/src/PostgreSql/Lexer/PostgreSqlLexer.php:31

Method calls 1

method-call SqlParser\PostgreSql\Lexer\PostgreSqlLexer::scan() packages/sql-parser/src/PostgreSql/Lexer/PostgreSqlLexer.php:57

Type declarations 1

type SqlParser\PostgreSql\Lexer\PostgreSqlLexer packages/sql-parser/src/PostgreSql/Lexer/PostgreSqlLexer.php:31