diff options
Diffstat (limited to 'src/Components/CaseExpression.php')
| -rw-r--r-- | src/Components/CaseExpression.php | 117 |
1 files changed, 56 insertions, 61 deletions
diff --git a/src/Components/CaseExpression.php b/src/Components/CaseExpression.php index 820947b..eb91f5f 100644 --- a/src/Components/CaseExpression.php +++ b/src/Components/CaseExpression.php @@ -112,29 +112,28 @@ class CaseExpression extends Component } if ($state === 0) { - if ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'WHEN' - ) { - ++$list->idx; // Skip 'WHEN' - $new_condition = Condition::parse($parser, $list); - $type = 1; - $state = 1; - $ret->conditions[] = $new_condition; - } elseif ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'ELSE' - ) { - ++$list->idx; // Skip 'ELSE' - $ret->else_result = Expression::parse($parser, $list); - $state = 0; // last clause of CASE expression - } elseif ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'END' - ) { - $state = 3; // end of CASE expression - ++$list->idx; - break; - } elseif ($token->type === Token::TYPE_KEYWORD) { - $parser->error('Unexpected keyword.', $token); - break; + if ($token->type === Token::TYPE_KEYWORD) { + switch($token->keyword) { + case 'WHEN': + ++$list->idx; // Skip 'WHEN' + $new_condition = Condition::parse($parser, $list); + $type = 1; + $state = 1; + $ret->conditions[] = $new_condition; + break; + case 'ELSE': + ++$list->idx; // Skip 'ELSE' + $ret->else_result = Expression::parse($parser, $list); + $state = 0; // last clause of CASE expression + break; + case 'END': + $state = 3; // end of CASE expression + ++$list->idx; + break; + default: + $parser->error('Unexpected keyword.', $token); + break; + } } else { $ret->value = Expression::parse($parser, $list); $type = 0; @@ -142,54 +141,50 @@ class CaseExpression extends Component } } elseif ($state === 1) { if ($type === 0) { - if ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'WHEN' - ) { - ++$list->idx; // Skip 'WHEN' - $new_value = Expression::parse($parser, $list); - $state = 2; - $ret->compare_values[] = $new_value; - } elseif ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'ELSE' - ) { - ++$list->idx; // Skip 'ELSE' - $ret->else_result = Expression::parse($parser, $list); - $state = 0; // last clause of CASE expression - } elseif ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'END' - ) { - $state = 3; // end of CASE expression - ++$list->idx; - break; - } elseif ($token->type === Token::TYPE_KEYWORD) { - $parser->error('Unexpected keyword.', $token); - break; + if ($token->type === Token::TYPE_KEYWORD) { + switch($token->keyword) { + case 'WHEN': + ++$list->idx; // Skip 'WHEN' + $new_value = Expression::parse($parser, $list); + $state = 2; + $ret->compare_values[] = $new_value; + break; + case 'ELSE': + ++$list->idx; // Skip 'ELSE' + $ret->else_result = Expression::parse($parser, $list); + $state = 0; // last clause of CASE expression + break; + case 'END': + $state = 3; // end of CASE expression + ++$list->idx; + break; + default: + $parser->error('Unexpected keyword.', $token); + break; + } } - } else { - if ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'THEN' - ) { + } else if ($token->type === Token::TYPE_KEYWORD) { + if ($token->keyword === 'THEN') { ++$list->idx; // Skip 'THEN' $new_result = Expression::parse($parser, $list); $state = 0; $ret->results[] = $new_result; - } elseif ($token->type === Token::TYPE_KEYWORD) { + } else { $parser->error('Unexpected keyword.', $token); - break; } + break; } } elseif ($state === 2) { if ($type === 0) { - if ($token->type === Token::TYPE_KEYWORD - && $token->keyword === 'THEN' - ) { - ++$list->idx; // Skip 'THEN' - $new_result = Expression::parse($parser, $list); - $ret->results[] = $new_result; - $state = 1; - } elseif ($token->type === Token::TYPE_KEYWORD) { - $parser->error('Unexpected keyword.', $token); - break; + if ($token->type === Token::TYPE_KEYWORD) { + if ($token->keyword === 'THEN') { + ++$list->idx; // Skip 'THEN' + $new_result = Expression::parse($parser, $list); + $ret->results[] = $new_result; + $state = 1; + } else { + $parser->error('Unexpected keyword.', $token); + } } } } |