TokensList::__construct() - Code Metrics - Inspection of "Refactor TokenList" - phpmyadmin/sql-parser - Measure and Improve Code Quality continuously with Scrutinizer

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Pull Request — master (#504)

unknown

created 2023-09-17 19:16 UTC

TokensList::__construct() A

↳ Parent: TokensList

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php

declare(strict_types=1);

namespace PhpMyAdmin\SqlParser;

use ArrayAccess;

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

/**
 * 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 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 array of tokens.
     */
    public function __construct(public array $tokens = [])
    {
        $this->count = count($tokens);
    }

    /**
     * Builds an array of tokens by merging their raw value.
     */
    public function build(): string
    {
        return static::buildFromArray($this->tokens);
    }

    /**
     * Builds an array of tokens by merging their raw value.
     *
     * @param Token[] $list the tokens to be built
     */
    public static function buildFromArray(array $list): string
    {
        $ret = '';
        foreach ($list as $token) {
            $ret .= $token->token;
        }

        return $ret;
    }

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

    /**
     * Gets the next token. Skips any irrelevant token (whitespaces and
     * comments).
     */
    public function getNext(): Token|null
    {
        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|null
    {
        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[] $type the type
     */
    public function getPreviousOfType($type): Token|null
    {
        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[] $type the type
     */
    public function getNextOfType($type): Token|null
    {
        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 $value the value of the token
     */
    public function getNextOfTypeAndValue($type, $value): Token|null
    {
        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|null
    {
        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    $value  the token to be saved
     */
    public function offsetSet($offset, $value): void
    {
        if ($offset === null) {
            $this->tokens[$this->count++] = $value;
        } else {
            $this->tokens[$offset] = $value;
        }
    }

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

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

    /**
     * Unsets the value of an offset.
     *
     * @param int $offset the offset to be unset
     */
    public function offsetUnset($offset): void
    {
        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
13		/**
14		* Defines an array of tokens and utility functions to iterate through it.
15		*
16		* A structure representing a list of tokens.
17		*
18		* @implements ArrayAccess<int, Token>
19		*/
20		class TokensList implements ArrayAccess
21		{
22		/**
23		* The count of tokens.
24		*
25		* @var int
26		*/
27		public $count = 0;
28
29		/**
30		* The index of the next token to be returned.
31		*
32		* @var int
33		*/
34		public $idx = 0;
35
36		/**
37		* @param Token[] $tokens The array of tokens.
38		*/
39	1448	public function __construct(public array $tokens = [])
40		{
41	1448	$this->count = count($tokens);
42		}
43
44		/**
45		* Builds an array of tokens by merging their raw value.
46		*/
47	2	public function build(): string
48		{
49	2	return static::buildFromArray($this->tokens);
50		}
51
52		/**
53		* Builds an array of tokens by merging their raw value.
54		*
55		* @param Token[] $list the tokens to be built
56		*/
57	40	public static function buildFromArray(array $list): string
58		{
59	40	$ret = '';
60	40	foreach ($list as $token) {
61	24	$ret .= $token->token;
62		}
63
64	40	return $ret;
65		}
66
67		/**
68		* Adds a new token.
69		*
70		* @param Token $token token to be added in list
71		*/
72	2	public function add(Token $token): void
73		{
74	2	$this->tokens[$this->count++] = $token;
75		}
76
77		/**
78		* Gets the next token. Skips any irrelevant token (whitespaces and
79		* comments).
80		*/
81	508	public function getNext(): Token\|null
82		{
83	508	for (; $this->idx < $this->count; ++$this->idx) {
84		if (
85	508	($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
86	508	&& ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
87		) {
88	508	return $this->tokens[$this->idx++];
89		}
90		}
91
92	2	return null;
93		}
94
95		/**
96		* Gets the previous token. Skips any irrelevant token (whitespaces and
97		* comments).
98		*/
99	500	public function getPrevious(): Token\|null
100		{
101	500	for (; $this->idx >= 0; --$this->idx) {
102		if (
103	500	($this->tokens[$this->idx]->type !== Token::TYPE_WHITESPACE)
104	500	&& ($this->tokens[$this->idx]->type !== Token::TYPE_COMMENT)
105		) {
106	500	return $this->tokens[$this->idx--];
107		}
108		}
109
110	14	return null;
111		}
112
113		/**
114		* Gets the previous token.
115		*
116		* @param int\|int[] $type the type
117		*/
118	2	public function getPreviousOfType($type): Token\|null
119		{
120	2	if (! is_array($type)) {
121	2	$type = [$type];
122		}
123
124	2	for (; $this->idx >= 0; --$this->idx) {
125	2	if (in_array($this->tokens[$this->idx]->type, $type, true)) {
126	2	return $this->tokens[$this->idx--];
127		}
128		}
129
130	2	return null;
131		}
132
133		/**
134		* Gets the next token.
135		*
136		* @param int\|int[] $type the type
137		*/
138	184	public function getNextOfType($type): Token\|null
139		{
140	184	if (! is_array($type)) {
141	184	$type = [$type];
142		}
143
144	184	for (; $this->idx < $this->count; ++$this->idx) {
145	184	if (in_array($this->tokens[$this->idx]->type, $type, true)) {
146	166	return $this->tokens[$this->idx++];
147		}
148		}
149
150	30	return null;
151		}
152
153		/**
154		* Gets the next token.
155		*
156		* @param int $type the type of the token
157		* @param string $value the value of the token
158		*/
159	1428	public function getNextOfTypeAndValue($type, $value): Token\|null
160		{
161	1428	for (; $this->idx < $this->count; ++$this->idx) {
162	1428	if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->value === $value)) {
163	242	return $this->tokens[$this->idx++];
164		}
165		}
166
167	1428	return null;
168		}
169
170		/**
171		* Gets the next token.
172		*
173		* @param int $type the type of the token
174		* @param int $flag the flag of the token
175		*/
176	1428	public function getNextOfTypeAndFlag(int $type, int $flag): Token\|null
177		{
178	1428	for (; $this->idx < $this->count; ++$this->idx) {
179	1428	if (($this->tokens[$this->idx]->type === $type) && ($this->tokens[$this->idx]->flags === $flag)) {
180	216	return $this->tokens[$this->idx++];
181		}
182		}
183
184	1428	return null;
185		}
186
187		/**
188		* Sets an value inside the container.
189		*
190		* @param int\|null $offset the offset to be set
191		* @param Token $value the token to be saved
192		*/
193	2	public function offsetSet($offset, $value): void
194		{
195	2	if ($offset === null) {
196	2	$this->tokens[$this->count++] = $value;
197		} else {
198	2	$this->tokens[$offset] = $value;
199		}
200		}
201
202		/**
203		* Gets a value from the container.
204		*
205		* @param int $offset the offset to be returned
206		*/
207	2	public function offsetGet($offset): Token\|null
208		{
209	2	return $offset < $this->count ? $this->tokens[$offset] : null;
210		}
211
212		/**
213		* Checks if an offset was previously set.
214		*
215		* @param int $offset the offset to be checked
216		*/
217	2	public function offsetExists($offset): bool
218		{
219	2	return $offset < $this->count;
220		}
221
222		/**
223		* Unsets the value of an offset.
224		*
225		* @param int $offset the offset to be unset
226		*/
227	2	public function offsetUnset($offset): void
228		{
229	2	unset($this->tokens[$offset]);
230	2	--$this->count;
231	2	for ($i = $offset; $i < $this->count; ++$i) {
232	2	$this->tokens[$i] = $this->tokens[$i + 1];
233		}
234
235	2	unset($this->tokens[$this->count]);
236		}
237		}
238

phpmyadmin / sql-parser

Pull Request — master (#504)

TokensList::__construct() A

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Duplication

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