SPARQLPlusParser::xGroupClause() - Code Metrics - Inspection of "Store::query reports more aggressively if somethin..." - sweetrdf/in-memory-store-sqlite - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — extract-store ( d338ce...38a23e )

by Konrad

created 2021-03-17 11:22 UTC

SPARQLPlusParser::xGroupClause() B

↳ Parent: SPARQLPlusParser

Complexity

Conditions	7
Paths	10

Size

Total Lines	23
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	7.116

Importance

Changes

Metric	Value
cc	7
eloc	16
nc	10
nop	1
dl	0
loc	23
ccs	13
cts	15
cp	0.8667
crap	7.116
rs	8.8333
c	0
b	0
f	0

<?php

/*
 * This file is part of the sweetrdf/InMemoryStoreSqlite package and licensed under
 * the terms of the GPL-3 license.
 *
 * (c) Konrad Abicht <[email protected]>
 * (c) Benjamin Nowack
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace sweetrdf\InMemoryStoreSqlite\Parser;

class SPARQLPlusParser extends SPARQLParser
{
    /* +1 */

    protected function xQuery($v)
    {
        list($r, $v) = $this->xPrologue($v);
        foreach (['Select', 'Construct', 'Describe', 'Ask', 'Insert', 'Delete', 'Load'] as $type) {
            $m = 'x'.$type.'Query';
            if ((list($r, $v) = $this->$m($v)) && $r) {
                return [$r, $v];
            }
        }

        return [0, $v];
    }

    /* +3 */

    protected function xResultVar($v)
    {
        $aggregate = '';
        /* aggregate */
        if ($sub_r = $this->x('\(?(AVG|COUNT|MAX|MIN|SUM)\s*\(\s*([^\)]+)\)\s+AS\s+([^\s\)]+)\)?', $v)) {
            $aggregate = $sub_r[1];
            $result_var = $sub_r[3];
            $v = $sub_r[2].$sub_r[4];
        }
        if ($sub_r && (list($sub_r, $sub_v) = $this->xVar($result_var)) && $sub_r) {

            $result_var = $sub_r['value'];
        }
        /* * or var */
        if ((list($sub_r, $sub_v) = $this->x('\*', $v)) && $sub_r) {
            return [['var' => '*', 'aggregate' => $aggregate, 'alias' => $aggregate ? $result_var : ''], $sub_v];
        }
        if ((list($sub_r, $sub_v) = $this->xVar($v)) && $sub_r) {
            return [['var' => $sub_r['value'], 'aggregate' => $aggregate, 'alias' => $aggregate ? $result_var : ''], $sub_v];
        }

        return [0, $v];
    }

    /* +4 */

    protected function xLoadQuery($v)
    {
        if ($sub_r = $this->x('LOAD\s+', $v)) {
            $sub_v = $sub_r[1];
            if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
                $r = ['type' => 'load', 'url' => $sub_r, 'target_graph' => ''];

                return [$r, $sub_v];
            }
        }

        return [0, $v];
    }

    /* +5 */

    protected function xInsertQuery($v)
    {
        if ($sub_r = $this->x('INSERT\s+', $v)) {
            $r = [
                'type' => 'insert',
                'dataset' => [],
            ];
            $sub_v = $sub_r[1];
            /* target */
            if ($sub_r = $this->x('INTO\s+', $sub_v)) {
                $sub_v = $sub_r[1];
                if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
                    $r['target_graph'] = $sub_r;
                    /* CONSTRUCT keyword, optional */
                    if ($sub_r = $this->x('CONSTRUCT\s+', $sub_v)) {
                        $sub_v = $sub_r[1];
                    }
                    /* construct template */
                    if ((list($sub_r, $sub_v) = $this->xConstructTemplate($sub_v)) && \is_array($sub_r)) {
                        $r['construct_triples'] = $sub_r;
                    } else {
                        $this->logger->error('Construct Template not found');

                        return [0, $v];
                    }
                    /* dataset */
                    while ((list($sub_r, $sub_v) = $this->xDatasetClause($sub_v)) && $sub_r) {
                        $r['dataset'][] = $sub_r;
                    }
                    /* where */
                    if ((list($sub_r, $sub_v) = $this->xWhereClause($sub_v)) && $sub_r) {
                        $r['pattern'] = $sub_r;
                    }
                    /* solution modifier */
                    if ((list($sub_r, $sub_v) = $this->xSolutionModifier($sub_v)) && $sub_r) {
                        $r = array_merge($r, $sub_r);
                    }

                    return [$r, $sub_v];
                }
            }
        }

        return [0, $v];
    }

    /* +6 */

    protected function xDeleteQuery($v): array
    {
        if ($sub_r = $this->x('DELETE\s+', $v)) {
            $r = [
                'type' => 'delete',
                'target_graphs' => [],
            ];
            $sub_v = $sub_r[1];
            /* target */
            do {
                $proceed = false;
                if ($sub_r = $this->x('FROM\s+', $sub_v)) {
                    $sub_v = $sub_r[1];
                    if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
                        $r['target_graphs'][] = $sub_r;
                        $proceed = 1;
                    }
                }
            } while ($proceed);
0   == false // true
0   == null  // true
123 == false // false
123 == null  // false

// It is often better to use strict comparison
0 === false // false
0 === null  // false
            /* CONSTRUCT keyword, optional */
            if ($sub_r = $this->x('CONSTRUCT\s+', $sub_v)) {
                $sub_v = $sub_r[1];
            }
            /* construct template */
            if ((list($sub_r, $sub_v) = $this->xConstructTemplate($sub_v)) && \is_array($sub_r)) {
                $r['construct_triples'] = $sub_r;
                /* dataset */
                while ((list($sub_r, $sub_v) = $this->xDatasetClause($sub_v)) && $sub_r) {
                    $r['dataset'][] = $sub_r;
                }
                /* where */
                if ((list($sub_r, $sub_v) = $this->xWhereClause($sub_v)) && $sub_r) {
                    $r['pattern'] = $sub_r;
                }
                /* solution modifier */
                if ((list($sub_r, $sub_v) = $this->xSolutionModifier($sub_v)) && $sub_r) {
                    $r = array_merge($r, $sub_r);
                }
            }

            return [$r, $sub_v];
        }

        return [0, $v];
    }

    /* +7 */

    protected function xSolutionModifier($v): array
    {
        $r = [];
        if ((list($sub_r, $sub_v) = $this->xGroupClause($v)) && $sub_r) {
            $r['group_infos'] = $sub_r;
        }
        if ((list($sub_r, $sub_v) = $this->xOrderClause($sub_v)) && $sub_r) {
            $r['order_infos'] = $sub_r;
        }
        while ((list($sub_r, $sub_v) = $this->xLimitOrOffsetClause($sub_v)) && $sub_r) {
            $r = array_merge($r, $sub_r);
        }

        return ($v == $sub_v) ? [0, $v] : [$r, $sub_v];
    }

    /* +8 */

    protected function xGroupClause($v): array
    {
        if ($sub_r = $this->x('GROUP BY\s+', $v)) {
            $sub_v = $sub_r[1];
            $r = [];
            do {
                $proceed = 0;
                if ((list($sub_r, $sub_v) = $this->xVar($sub_v)) && $sub_r) {
                    $r[] = $sub_r;
                    $proceed = 1;
                    if ($sub_r = $this->x('\,', $sub_v)) {
                        $sub_v = $sub_r[1];
                    }
                }
            } while ($proceed);
            if (\count($r)) {
                return [$r, $sub_v];
            } else {
                $this->logger->error('No columns specified in GROUP BY clause.');
            }
        }

        return [0, $v];
    }
}


1		<?php
2
3		/*
4		* This file is part of the sweetrdf/InMemoryStoreSqlite package and licensed under
5		* the terms of the GPL-3 license.
6		*
7		* (c) Konrad Abicht <[email protected]>
8		* (c) Benjamin Nowack
9		*
10		* For the full copyright and license information, please view the LICENSE
11		* file that was distributed with this source code.
12		*/
13
14		namespace sweetrdf\InMemoryStoreSqlite\Parser;
15
16		class SPARQLPlusParser extends SPARQLParser
17		{
18		/* +1 */
19
20	85	protected function xQuery($v)
21		{
22	85	list($r, $v) = $this->xPrologue($v);
23	85	foreach (['Select', 'Construct', 'Describe', 'Ask', 'Insert', 'Delete', 'Load'] as $type) {
24	85	$m = 'x'.$type.'Query';
25	85	if ((list($r, $v) = $this->$m($v)) && $r) {
26	84	return [$r, $v];
27		}
28		}
29
30	3	return [0, $v];
31		}
32
33		/* +3 */
34
35	39	protected function xResultVar($v)
36		{
37	39	$aggregate = '';
38		/* aggregate */
39	39	if ($sub_r = $this->x('\(?(AVG\|COUNT\|MAX\|MIN\|SUM)\s\(\s([^\)]+)\)\s+AS\s+([^\s\)]+)\)?', $v)) {
40	10	$aggregate = $sub_r[1];
41	10	$result_var = $sub_r[3];
42	10	$v = $sub_r[2].$sub_r[4];
43		}
44	39	if ($sub_r && (list($sub_r, $sub_v) = $this->xVar($result_var)) && $sub_r) {
		0 ignored issues – show Comprehensibility Best Practice introduced 2021-03-11 10:55 UTC by Report Bug Copy Issue Report The variable `$result_var` does not seem to be defined for all execution paths leading up to this point. Loading history...
45	10	$result_var = $sub_r['value'];
46		}
47		/* * or var */
48	39	if ((list($sub_r, $sub_v) = $this->x('\*', $v)) && $sub_r) {
49	2	return [['var' => '*', 'aggregate' => $aggregate, 'alias' => $aggregate ? $result_var : ''], $sub_v];
50		}
51	39	if ((list($sub_r, $sub_v) = $this->xVar($v)) && $sub_r) {
52	36	return [['var' => $sub_r['value'], 'aggregate' => $aggregate, 'alias' => $aggregate ? $result_var : ''], $sub_v];
53		}
54
55	39	return [0, $v];
56		}
57
58		/* +4 */
59
60	3	protected function xLoadQuery($v)
61		{
62	3	if ($sub_r = $this->x('LOAD\s+', $v)) {
63		$sub_v = $sub_r[1];
64		if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
65		$r = ['type' => 'load', 'url' => $sub_r, 'target_graph' => ''];
66
67		return [$r, $sub_v];
68		}
69		}
70
71	3	return [0, $v];
72		}
73
74		/* +5 */
75
76	74	protected function xInsertQuery($v)
77		{
78	74	if ($sub_r = $this->x('INSERT\s+', $v)) {
79	74	$r = [
80		'type' => 'insert',
81		'dataset' => [],
82		];
83	74	$sub_v = $sub_r[1];
84		/* target */
85	74	if ($sub_r = $this->x('INTO\s+', $sub_v)) {
86	74	$sub_v = $sub_r[1];
87	74	if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
88	74	$r['target_graph'] = $sub_r;
89		/* CONSTRUCT keyword, optional */
90	74	if ($sub_r = $this->x('CONSTRUCT\s+', $sub_v)) {
91	1	$sub_v = $sub_r[1];
92		}
93		/* construct template */
94	74	if ((list($sub_r, $sub_v) = $this->xConstructTemplate($sub_v)) && \is_array($sub_r)) {
95	73	$r['construct_triples'] = $sub_r;
96		} else {
97	1	$this->logger->error('Construct Template not found');
98
99	1	return [0, $v];
100		}
101		/* dataset */
102	73	while ((list($sub_r, $sub_v) = $this->xDatasetClause($sub_v)) && $sub_r) {
103		$r['dataset'][] = $sub_r;
104		}
105		/* where */
106	73	if ((list($sub_r, $sub_v) = $this->xWhereClause($sub_v)) && $sub_r) {
107		$r['pattern'] = $sub_r;
108		}
109		/* solution modifier */
110	73	if ((list($sub_r, $sub_v) = $this->xSolutionModifier($sub_v)) && $sub_r) {
111		$r = array_merge($r, $sub_r);
112		}
113
114	73	return [$r, $sub_v];
115		}
116		}
117		}
118
119	10	return [0, $v];
120		}
121
122		/* +6 */
123
124	11	protected function xDeleteQuery($v): array
125		{
126	11	if ($sub_r = $this->x('DELETE\s+', $v)) {
127	8	$r = [
128		'type' => 'delete',
129		'target_graphs' => [],
130		];
131	8	$sub_v = $sub_r[1];
132		/* target */
133		do {
134	8	$proceed = false;
135	8	if ($sub_r = $this->x('FROM\s+', $sub_v)) {
136	5	$sub_v = $sub_r[1];
137	5	if ((list($sub_r, $sub_v) = $this->xIRIref($sub_v)) && $sub_r) {
138	5	$r['target_graphs'][] = $sub_r;
139	5	$proceed = 1;
140		}
141		}
142	8	} while ($proceed);
		0 ignored issues – show Bug Best Practice introduced 2021-03-11 10:55 UTC by Report Bug Copy Issue Report The expression `$proceed` of type `false\|integer` is loosely compared to `true`; this is ambiguous if the integer can be 0. You might want to explicitly use `!== false` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `integer` values, zero is a special case, in particular the following results might be unexpected: 0 == false // true 0 == null // true 123 == false // false 123 == null // false // It is often better to use strict comparison 0 === false // false 0 === null // false Loading history...
143		/* CONSTRUCT keyword, optional */
144	8	if ($sub_r = $this->x('CONSTRUCT\s+', $sub_v)) {
145		$sub_v = $sub_r[1];
146		}
147		/* construct template */
148	8	if ((list($sub_r, $sub_v) = $this->xConstructTemplate($sub_v)) && \is_array($sub_r)) {
149	4	$r['construct_triples'] = $sub_r;
150		/* dataset */
151	4	while ((list($sub_r, $sub_v) = $this->xDatasetClause($sub_v)) && $sub_r) {
152		$r['dataset'][] = $sub_r;
153		}
154		/* where */
155	4	if ((list($sub_r, $sub_v) = $this->xWhereClause($sub_v)) && $sub_r) {
156	2	$r['pattern'] = $sub_r;
157		}
158		/* solution modifier */
159	4	if ((list($sub_r, $sub_v) = $this->xSolutionModifier($sub_v)) && $sub_r) {
160		$r = array_merge($r, $sub_r);
161		}
162		}
163
164	8	return [$r, $sub_v];
165		}
166
167	3	return [0, $v];
168		}
169
170		/* +7 */
171
172	84	protected function xSolutionModifier($v): array
173		{
174	84	$r = [];
175	84	if ((list($sub_r, $sub_v) = $this->xGroupClause($v)) && $sub_r) {
176	5	$r['group_infos'] = $sub_r;
177		}
178	84	if ((list($sub_r, $sub_v) = $this->xOrderClause($sub_v)) && $sub_r) {
179	4	$r['order_infos'] = $sub_r;
180		}
181	84	while ((list($sub_r, $sub_v) = $this->xLimitOrOffsetClause($sub_v)) && $sub_r) {
182	3	$r = array_merge($r, $sub_r);
183		}
184
185	84	return ($v == $sub_v) ? [0, $v] : [$r, $sub_v];
186		}
187
188		/* +8 */
189
190	84	protected function xGroupClause($v): array
191		{
192	84	if ($sub_r = $this->x('GROUP BY\s+', $v)) {
193	5	$sub_v = $sub_r[1];
194	5	$r = [];
195		do {
196	5	$proceed = 0;
197	5	if ((list($sub_r, $sub_v) = $this->xVar($sub_v)) && $sub_r) {
198	5	$r[] = $sub_r;
199	5	$proceed = 1;
200	5	if ($sub_r = $this->x('\,', $sub_v)) {
201		$sub_v = $sub_r[1];
202		}
203		}
204	5	} while ($proceed);
205	5	if (\count($r)) {
206	5	return [$r, $sub_v];
207		} else {
208		$this->logger->error('No columns specified in GROUP BY clause.');
209		}
210		}
211
212	84	return [0, $v];
213		}
214		}
215

sweetrdf / in-memory-store-sqlite

Push — extract-store ( d338ce...38a23e )

SPARQLPlusParser::xGroupClause() B

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