TokensList::getNext() - Code Metrics - Inspection of "Fixup scrutinizer config" - phpmyadmin/sql-parser - Measure and Improve Code Quality continuously with Scrutinizer

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by William

created 2023-03-11 14:20 UTC

TokensList::getNext() A

↳ Parent: TokensList

Complexity

Conditions	4
Paths	3

Size

Total Lines	12
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	4

Importance

Changes

Metric	Value
cc	4
eloc	6
c	0
b	0
f	0
nc	3
nop	0
dl	0
loc	12
ccs	6
cts	6
cp	1
crap	4
rs	10

<?php

declare(strict_types=1);

namespace PhpMyAdmin\SqlParser;

use ArrayAccess;

use function count;
use function in_array;
use function is_array;
use function is_string;

/**
 * Defines an array of tokens and utility functions to iterate through it.
 *
 * A structure representing a list of tokens.
 *
 * @implements ArrayAccess<int, Token>
 */
class TokensList implements ArrayAccess
{
    /**
     * The array of tokens.
     *
     * @var Token[]
     */
    public $tokens = [];

    /**
     * The count of tokens.
     *
     * @var int
     */
    public $count = 0;

    /**
     * The index of the next token to be returned.
     *
     * @var int
     */
    public $idx = 0;

    /**
     * @param Token[] $tokens the initial array of tokens
     * @param int     $count  the count of tokens in the initial array
     */
    public function __construct(array $tokens = [], $count = -1)
    {
        if (empty($tokens)) {
            return;
        }

        $this->tokens = $tokens;
        $this->count = $count === -1 ? count($tokens) : $count;
    }

    /**
     * Builds an array of tokens by merging their raw value.
     *
     * @param string|Token[]|TokensList $list the tokens to be built
     *
     * @return string
     */
    public static function build($list)
    {
        if (is_string($list)) {
            return $list;
        }

        if ($list instanceof self) {
            $list = $list->tokens;
        }

        $ret = '';
        if (is_array($list)) {

            foreach ($list as $tok) {
                $ret .= $tok->token;
            }
        }

        return $ret;
    }

    /**
     * Adds a new token.
     *
     * @param Token $token token to be added in list
     *
     * @return void
     */
    public function add(Token $token)
    {
        $this->tokens[$this->count++] = $token;
    }

    /**
     * Gets the next token. Skips any irrelevant token (whitespaces and
     * comments).
     *
     * @return Token|null
     */
    public function getNext()
    {
        for (; $this->idx < $this->count; ++$this->idx) {
            if (
                ($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
                && ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
            ) {
                return $this->tokens[$this->idx++];
            }
        }

        return null;
    }

    /**
     * Gets the previous token. Skips any irrelevant token (whitespaces and
     * comments).
     */
    public function getPrevious(): ?Token
    {
        for (; $this->idx >= 0; --$this->idx) {
            if (
                ($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
                && ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
            ) {
                return $this->tokens[$this->idx--];
            }
        }

        return null;
    }

    /**
     * Gets the previous token.
     *
     * @param int|int[] $type the type
     *
     * @return Token|null
     */
    public function getPreviousOfType($type)
    {
        if (! is_array($type)) {
            $type = [$type];
        }

        for (; $this->idx >= 0; --$this->idx) {
            if (in_array($this->tokens[$this->idx]->type, $type, true)) {
                return $this->tokens[$this->idx--];
            }
        }

        return null;
    }

    /**
     * Gets the next token.
     *
     * @param int|int[] $type the type
     *
     * @return Token|null
     */
    public function getNextOfType($type)
    {
        if (! is_array($type)) {
            $type = [$type];
        }

        for (; $this->idx < $this->count; ++$this->idx) {
            if (in_array($this->tokens[$this->idx]->type, $type, true)) {
                return $this->tokens[$this->idx++];
            }
        }

        return null;
    }

    /**
     * Gets the next token.
     *
     * @param int    $type  the type of the token
     * @param string $value the value of the token
     *
     * @return Token|null
     */
    public function getNextOfTypeAndValue($type, $value)
    {
        for (; $this->idx < $this->count; ++$this->idx) {
            if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->value === $value)) {
                return $this->tokens[$this->idx++];
            }
        }

        return null;
    }

    /**
     * Gets the next token.
     *
     * @param int $type the type of the token
     * @param int $flag the flag of the token
     */
    public function getNextOfTypeAndFlag(int $type, int $flag): ?Token
    {
        for (; $this->idx < $this->count; ++$this->idx) {
            if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->flags === $flag)) {
                return $this->tokens[$this->idx++];
            }
        }

        return null;
    }

    /**
     * Sets an value inside the container.
     *
     * @param int|null $offset the offset to be set
     * @param Token    $value  the token to be saved
     *
     * @return void
     */
    #[\ReturnTypeWillChange]
    public function offsetSet($offset, $value)
    {
        if ($offset === null) {
            $this->tokens[$this->count++] = $value;
        } else {
            $this->tokens[$offset] = $value;
        }
    }

    /**
     * Gets a value from the container.
     *
     * @param int $offset the offset to be returned
     *
     * @return Token|null
     */
    #[\ReturnTypeWillChange]
    public function offsetGet($offset)
    {
        return $offset < $this->count ? $this->tokens[$offset] : null;
    }

    /**
     * Checks if an offset was previously set.
     *
     * @param int $offset the offset to be checked
     *
     * @return bool
     */
    #[\ReturnTypeWillChange]
    public function offsetExists($offset)
    {
        return $offset < $this->count;
    }

    /**
     * Unsets the value of an offset.
     *
     * @param int $offset the offset to be unset
     *
     * @return void
     */
    #[\ReturnTypeWillChange]
    public function offsetUnset($offset)
    {
        unset($this->tokens[$offset]);
        --$this->count;
        for ($i = $offset; $i < $this->count; ++$i) {
            $this->tokens[$i] = $this->tokens[$i + 1];
        }

        unset($this->tokens[$this->count]);
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace PhpMyAdmin\SqlParser;
6
7		use ArrayAccess;
8
9		use function count;
10		use function in_array;
11		use function is_array;
12		use function is_string;
13
14		/**
15		* Defines an array of tokens and utility functions to iterate through it.
16		*
17		* A structure representing a list of tokens.
18		*
19		* @implements ArrayAccess<int, Token>
20		*/
21		class TokensList implements ArrayAccess
22		{
23		/**
24		* The array of tokens.
25		*
26		* @var Token[]
27		*/
28		public $tokens = [];
29
30		/**
31		* The count of tokens.
32		*
33		* @var int
34		*/
35		public $count = 0;
36
37		/**
38		* The index of the next token to be returned.
39		*
40		* @var int
41		*/
42		public $idx = 0;
43
44		/**
45		* @param Token[] $tokens the initial array of tokens
46		* @param int $count the count of tokens in the initial array
47		*/
48	1302	public function __construct(array $tokens = [], $count = -1)
49		{
50	1302	if (empty($tokens)) {
51	1288	return;
52		}
53
54	64	$this->tokens = $tokens;
55	64	$this->count = $count === -1 ? count($tokens) : $count;
56		}
57
58		/**
59		* Builds an array of tokens by merging their raw value.
60		*
61		* @param string\|Token[]\|TokensList $list the tokens to be built
62		*
63		* @return string
64		*/
65	32	public static function build($list)
66		{
67	32	if (is_string($list)) {
68	2	return $list;
69		}
70
71	30	if ($list instanceof self) {
72	2	$list = $list->tokens;
73		}
74
75	30	$ret = '';
76	30	if (is_array($list)) {
		0 ignored issues – show introduced 2020-08-16 13:42 UTC by Report Bug Copy Issue Report The condition `is_array($list)` is always `true`. Loading history...
77	30	foreach ($list as $tok) {
78	24	$ret .= $tok->token;
79		}
80		}
81
82	30	return $ret;
83		}
84
85		/**
86		* Adds a new token.
87		*
88		* @param Token $token token to be added in list
89		*
90		* @return void
91		*/
92	2	public function add(Token $token)
93		{
94	2	$this->tokens[$this->count++] = $token;
95		}
96
97		/**
98		* Gets the next token. Skips any irrelevant token (whitespaces and
99		* comments).
100		*
101		* @return Token\|null
102		*/
103	464	public function getNext()
104		{
105	464	for (; $this->idx < $this->count; ++$this->idx) {
106		if (
107	460	($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
108	460	&& ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
109		) {
110	460	return $this->tokens[$this->idx++];
111		}
112		}
113
114	6	return null;
115		}
116
117		/**
118		* Gets the previous token. Skips any irrelevant token (whitespaces and
119		* comments).
120		*/
121	476	public function getPrevious(): ?Token
122		{
123	476	for (; $this->idx >= 0; --$this->idx) {
124		if (
125	476	($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
126	476	&& ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
127		) {
128	476	return $this->tokens[$this->idx--];
129		}
130		}
131
132	14	return null;
133		}
134
135		/**
136		* Gets the previous token.
137		*
138		* @param int\|int[] $type the type
139		*
140		* @return Token\|null
141		*/
142	2	public function getPreviousOfType($type)
143		{
144	2	if (! is_array($type)) {
145	2	$type = [$type];
146		}
147
148	2	for (; $this->idx >= 0; --$this->idx) {
149	2	if (in_array($this->tokens[$this->idx]->type, $type, true)) {
150	2	return $this->tokens[$this->idx--];
151		}
152		}
153
154	2	return null;
155		}
156
157		/**
158		* Gets the next token.
159		*
160		* @param int\|int[] $type the type
161		*
162		* @return Token\|null
163		*/
164	126	public function getNextOfType($type)
165		{
166	126	if (! is_array($type)) {
167	126	$type = [$type];
168		}
169
170	126	for (; $this->idx < $this->count; ++$this->idx) {
171	126	if (in_array($this->tokens[$this->idx]->type, $type, true)) {
172	124	return $this->tokens[$this->idx++];
173		}
174		}
175
176	12	return null;
177		}
178
179		/**
180		* Gets the next token.
181		*
182		* @param int $type the type of the token
183		* @param string $value the value of the token
184		*
185		* @return Token\|null
186		*/
187	1280	public function getNextOfTypeAndValue($type, $value)
188		{
189	1280	for (; $this->idx < $this->count; ++$this->idx) {
190	1280	if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->value === $value)) {
191	228	return $this->tokens[$this->idx++];
192		}
193		}
194
195	1280	return null;
196		}
197
198		/**
199		* Gets the next token.
200		*
201		* @param int $type the type of the token
202		* @param int $flag the flag of the token
203		*/
204	1280	public function getNextOfTypeAndFlag(int $type, int $flag): ?Token
205		{
206	1280	for (; $this->idx < $this->count; ++$this->idx) {
207	1280	if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->flags === $flag)) {
208	174	return $this->tokens[$this->idx++];
209		}
210		}
211
212	1280	return null;
213		}
214
215		/**
216		* Sets an value inside the container.
217		*
218		* @param int\|null $offset the offset to be set
219		* @param Token $value the token to be saved
220		*
221		* @return void
222		*/
223	2	#[\ReturnTypeWillChange]
224		public function offsetSet($offset, $value)
225		{
226	2	if ($offset === null) {
227	2	$this->tokens[$this->count++] = $value;
228		} else {
229	2	$this->tokens[$offset] = $value;
230		}
231		}
232
233		/**
234		* Gets a value from the container.
235		*
236		* @param int $offset the offset to be returned
237		*
238		* @return Token\|null
239		*/
240	14	#[\ReturnTypeWillChange]
241		public function offsetGet($offset)
242		{
243	14	return $offset < $this->count ? $this->tokens[$offset] : null;
244		}
245
246		/**
247		* Checks if an offset was previously set.
248		*
249		* @param int $offset the offset to be checked
250		*
251		* @return bool
252		*/
253	2	#[\ReturnTypeWillChange]
254		public function offsetExists($offset)
255		{
256	2	return $offset < $this->count;
257		}
258
259		/**
260		* Unsets the value of an offset.
261		*
262		* @param int $offset the offset to be unset
263		*
264		* @return void
265		*/
266	2	#[\ReturnTypeWillChange]
267		public function offsetUnset($offset)
268		{
269	2	unset($this->tokens[$offset]);
270	2	--$this->count;
271	2	for ($i = $offset; $i < $this->count; ++$i) {
272	2	$this->tokens[$i] = $this->tokens[$i + 1];
273		}
274
275	2	unset($this->tokens[$this->count]);
276		}
277		}
278

phpmyadmin / sql-parser

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TokensList::getNext() A

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