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Use early-returns to improve readability of the Parser

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This commit is contained in:
Luís Cobucci 2018-02-18 23:26:18 +01:00
parent f36470941c
commit fc943b70f6
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GPG Key ID: EC61C5F01750ED3C
1 changed files with 28 additions and 25 deletions
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53
lib/Doctrine/ORM/Query/Parser.php
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@ -304,21 +304,24 @@ class Parser
$lookaheadType = $this->lexer->lookahead['type'];
// Short-circuit on first condition, usually types match
if ($lookaheadType !== $token) {
// If parameter is not identifier (1-99) must be exact match
if ($token < Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
if ($lookaheadType === $token) {
$this->lexer->moveNext();
return;
}
// If parameter is keyword (200+) must be exact match
if ($token > Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
// If parameter is not identifier (1-99) must be exact match
if ($token < Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
// If parameter is T_IDENTIFIER, then matches T_IDENTIFIER (100) and keywords (200+)
if ($token === Lexer::T_IDENTIFIER && $lookaheadType < Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
// If parameter is keyword (200+) must be exact match
if ($token > Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
// If parameter is T_IDENTIFIER, then matches T_IDENTIFIER (100) and keywords (200+)
if ($token === Lexer::T_IDENTIFIER && $lookaheadType < Lexer::T_IDENTIFIER) {
$this->syntaxError($this->lexer->getLiteral($token));
}
$this->lexer->moveNext();
@ -959,20 +962,20 @@ class Parser
if ($this->lexer->isNextToken(Lexer::T_FULLY_QUALIFIED_NAME)) {
$this->match(Lexer::T_FULLY_QUALIFIED_NAME);
$schemaName = $this->lexer->token['value'];
} else if ($this->lexer->isNextToken(Lexer::T_IDENTIFIER)) {
$this->match(Lexer::T_IDENTIFIER);
$schemaName = $this->lexer->token['value'];
} else {
$this->match(Lexer::T_ALIASED_NAME);
list($namespaceAlias, $simpleClassName) = explode(':', $this->lexer->token['value']);
$schemaName = $this->em->getConfiguration()->getEntityNamespace($namespaceAlias) . '\\' . $simpleClassName;
return $this->lexer->token['value'];
}
return $schemaName;
if ($this->lexer->isNextToken(Lexer::T_IDENTIFIER)) {
$this->match(Lexer::T_IDENTIFIER);
return $this->lexer->token['value'];
}
$this->match(Lexer::T_ALIASED_NAME);
[$namespaceAlias, $simpleClassName] = explode(':', $this->lexer->token['value']);
return $this->em->getConfiguration()->getEntityNamespace($namespaceAlias) . '\\' . $simpleClassName;
}
/**