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

SQLite lexical generation using source-based candidate and boundary definitions. Tokenization is exposed separately for diagnostics and does not decide generation success.

Constants§

public const STRICT_TABLE_OPTION = 'STRICT_TABLE_OPTION'

The table option that makes a table reject values of the wrong type.

Methods§

public function __construct(
    private Generator $faker,
    private string $profileVersion,
    KeywordIndex|null $index = null,
)

Parameters

$fakerGeneratorSource of the choices realization makes
$profileVersionstringExact release to generate for, e.g. "sqlite-3.47.2"
$indexKeywordIndex|nullInverts the profile's terminal-to-spelling map

Throws

RuntimeException When the exact release has no declaration
Calls 5
public function version(): string

Names the release this grammar generates for.

Returns

string Profile version, e.g. "sqlite-3.47.2"
Test cases 1
public function isNonOutput(string $terminal): bool

SQLite's grammar terminals all emit text; its implicit EOF is outside the terminal sequence.

Parameters

$terminalstring

Returns

bool
Test cases 1
public function realize(list<string> $terminals, GenerationPlan<bool>|null $plan = null): string

Realizes a terminal sequence using the same candidate and spacing pipeline as grammar generation.

Parameters

$terminalslist<string>
$planGenerationPlan<bool>|null

Returns

string

Throws

LexicalException When a requested realization is unavailable
Test cases 6
Calls 2
public function realizeSequence(
    TerminalSequence $sequence,
    GenerationPlan<bool>|null $plan = null,
): string

Resolves candidates and boundaries before serialization; tokenization remains a diagnostic API.

Parameters

$sequenceTerminalSequence
$planGenerationPlan<bool>|null

Returns

string

Throws

LexicalException When the selected terminals have no applicable realization
Test cases 1
Called from 1
Calls 4
public function resolveSequence(
    TerminalSequence $sequence,
    GenerationPlan<bool>|null $plan,
    Closure(int): int $choose,
    Closure(positive-int): ?int|null $valueChoice = null,
): ResolvedOutput

Exposes the resolved choices to a plan compiler without interpreting its input.

Parameters

$sequenceTerminalSequence
$planGenerationPlan<bool>|null
$chooseClosure(int): int
$valueChoiceClosure(positive-int): ?int|nullConstructive values selected only while compiling a plan

Throws

LexicalException When no compatible candidate exists
Test cases 2
Called from 1
Calls 1
public function tokenize(string $sql): list<string>

Reads SQL text into the tokens SQLite's own lexer would produce.

Parameters

$sqlstringText to read

Returns

list<string> Parser token names, in order

Throws

LexicalException When the text holds something the lexer cannot read
Test cases 20
Calls 1
public function generateQuotedIdentifier(
    int $minLength = 1,
    int $maxLength = 128,
): non-empty-string

Writes a double-quoted identifier of a bounded length.

Parameters

$minLengthintShortest identifier body to write
$maxLengthintLongest identifier body to write

Returns

non-empty-string A quoted identifier
Test cases 2
Called from 1
Calls 1
public function generateStringLiteral(
    int $minLength = 1,
    int $maxLength = 255,
): non-empty-string

Writes a single-quoted string literal of a bounded length.

Parameters

$minLengthintShortest body to write
$maxLengthintLongest body to write

Returns

non-empty-string A string literal
Test cases 2
Called from 1
Calls 1
public function generateIntegerLiteral(int $min = 1, int $max = PHP_INT_MAX): non-empty-string

Writes an integer literal.

Parameters

$minintSmallest value to write
$maxintLargest value to write

Returns

non-empty-string An integer literal
Test cases 2
Called from 1
Calls 1
public function generateDecimalLiteral(int $precision = 15, int $scale = 2): non-empty-string

Writes a fixed-point literal.

Parameters

$precisionintTotal digits to write
$scaleintDigits after the point

Returns

non-empty-string A decimal literal
Test cases 2
Called from 1
Calls 1
public function generate(GenerationPlan<bool> $plan): non-empty-string

Writes the one lexeme a lexical generation plan asks for.

Parameters

$planGenerationPlan<bool>Plan naming the lexeme kind and its bounds

Returns

non-empty-string The lexeme

Throws

InvalidArgumentException When the plan names a lexeme kind this dialect has none of
Calls 7

Private surface 5§

Implementation details, listed for orientation only.

private LiteralGenerator $strings
private ReverseLexemeGenerator $pipeline
private SqliteTokenizer $tokenizer
private Generator $faker
private string $profileVersion

Test cases 37§

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

Dedicated tests 23
Other tests reaching this symbol 14

Relations§

Instantiated in 1