Frame::__construct() - Code Metrics - Inspection of "big work" - peacefulbit/packet-lite - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#19)

by Roman

created 2016-11-02 12:06 UTC

Frame::__construct() A

↳ Parent: Frame

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	4
nc	1
nop	3
dl	0
loc	6
rs	9.4285
c	0
b	0
f	0

<?php

namespace PeacefulBit\Slate\Core;

use function Nerd\Common\Arrays\toString;
use function Nerd\Common\Functional\tail;

use PeacefulBit\Slate\Exceptions\EvaluatorException;

class Frame
{
    /**
     * @var Evaluator
     */
    private $evaluator;

    /**
     * @var self
     */
    private $parent = null;

    /**
     * @var array
     */
    private $table = [];

    /**
     * @var array
     */
    private $modules = [];

    /**
     * @param Evaluator $evaluator
     * @param array $table
     * @param Frame|null $parent
     */
    public function __construct(Evaluator $evaluator, array $table = [], Frame $parent = null)
    {
        $this->evaluator = $evaluator;
        $this->table = $table;
        $this->parent = $parent;
    }

    /**
     * @param mixed $node
     * @return mixed
     */
    public function evaluate($node)
    {
//        if (!$node instanceof Nodes\NodeInterface) {

//            return $node;
//        }

//        $iter = tail(function ($node) use (&$iter) {

//            if ($node instanceof Nodes\CallExpression) {
//                return $iter($node->evaluate($this));
//            }
//            return $node;
//        });
//
//        return $iter($node->evaluate($this));
        return $node->evaluate($this);
    }

    /**
     * @param mixed $node
     * @return mixed
     */
    public function valueOf($node)
    {
//        $iter = tail(function ($node) use (&$iter) {

//            if ($node instanceof Nodes\Node) {
//                return $iter($this->evaluate($node));
//            }
//            return $node;
//        });
//
//        return $iter($node);
        return $this->evaluate($node);
    }

    /**
     * @param mixed $node
     * @return mixed
     */
    public function __invoke($node)
    {
        return $this->evaluate($node);
    }

    /**
     * @return bool
     */
    public function isRoot(): bool
    {
        return is_null($this->parent);
    }

    /**
     * @param string $key
     * @return bool
     */
    public function has(string $key): bool
    {
        $iter = tail(function ($key, Frame $frame) use (&$iter) {
            if (array_key_exists($key, $frame->table)) {
                return true;
            }
            if ($frame->isRoot()) {
                return false;
            }
            return $iter($key, $frame->parent);
        });

        return $iter($key, $this);
    }

    /**
     * @param string $key
     * @return mixed|null
     * @throws EvaluatorException
     */
    public function get(string $key)
    {
        $iter = tail(function ($key, Frame $frame) use (&$iter) {
            if (array_key_exists($key, $frame->table)) {
                return $frame->table[$key];
            }
            if ($frame->isRoot()) {
                throw new EvaluatorException("Symbol \"$key\" not defined");
            }
            return $iter($key, $frame->parent);
        });

        return $iter($key, $this);
    }

    /**
     * @param string $key
     * @param mixed $value
     * @return void
     */
    public function set(string $key, $value)
    {
        $this->table[$key] = $value;
    }

    /**
     * @param array $path
     * @return mixed
     * @throws EvaluatorException
     */
    public function getFromModule(array $path)
    {
        $node = array_reduce($path, function ($acc, $item) {
            return (is_array($acc) && array_key_exists($item, $acc)) ? $acc[$item] : null;
        }, $this->modules);

        if (is_null($node)) {
            throw new EvaluatorException("Module not imported");
        }

        return $node;
    }

    /**
     * @param array $table
     * @return Frame
     */
    public function extend(array $table = []): Frame
    {
        return new self($this->evaluator, $table, $this);
    }

    /**
     * @param array $table
     * @return Frame
     */
    public function replace(array $table = []): Frame
    {
        $this->table = array_merge($this->table, $table);
        return $this;
    }

    /**
     * @return string
     */
    public function __toString()
    {
        return toString(array_keys($this->table));
    }

    /**
     * @return Evaluator
     */
    public function getEvaluator(): Evaluator
    {
        return $this->evaluator;
    }

    /**
     * @param string $name Module name to use
     * @param null|string $alias Module alias name
     */
    public function useModule(string $name, string $alias = null)
    {
        $module = $this->getEvaluator()->getModule($name);
        $this->modules[$alias ?? $name] = $module;
    }

    /**
     * @param string $name Module name to import
     * @param array|null $functions List of functions to import
     */
    public function importModule(string $name, array $functions = null)
    {
        $module = $this->getEvaluator()->getModule($name);

        $importFunctions = $functions ?? array_keys($module);

        array_walk($importFunctions, function ($fn) use (&$module) {
            $this->set($fn, $module[$fn]);
        });
    }
}


1			<?php
2
3			namespace PeacefulBit\Slate\Core;
4
5			use function Nerd\Common\Arrays\toString;
6			use function Nerd\Common\Functional\tail;
7
8			use PeacefulBit\Slate\Exceptions\EvaluatorException;
9
10			class Frame
11			{
12			/**
13			* @var Evaluator
14			*/
15			private $evaluator;
16
17			/**
18			* @var self
19			*/
20			private $parent = null;
21
22			/**
23			* @var array
24			*/
25			private $table = [];
26
27			/**
28			* @var array
29			*/
30			private $modules = [];
31
32			/**
33			* @param Evaluator $evaluator
34			* @param array $table
35			* @param Frame\|null $parent
36			*/
37			public function __construct(Evaluator $evaluator, array $table = [], Frame $parent = null)
38			{
39			$this->evaluator = $evaluator;
40			$this->table = $table;
41			$this->parent = $parent;
42			}
43
44			/**
45			* @param mixed $node
46			* @return mixed
47			*/
48			public function evaluate($node)
49			{
50			// if (!$node instanceof Nodes\NodeInterface) {
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-11-01 19:52 UTC by Report Bug Copy Issue Report `50%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
51			// return $node;
52			// }
53
54			// $iter = tail(function ($node) use (&$iter) {
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-11-01 19:52 UTC by Report Bug Copy Issue Report `59%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
55			// if ($node instanceof Nodes\CallExpression) {
56			// return $iter($node->evaluate($this));
57			// }
58			// return $node;
59			// });
60			//
61			// return $iter($node->evaluate($this));
62			return $node->evaluate($this);
63			}
64
65			/**
66			* @param mixed $node
67			* @return mixed
68			*/
69			public function valueOf($node)
70			{
71			// $iter = tail(function ($node) use (&$iter) {
			0 ignored issues – show Unused Code Comprehensibility introduced 2016-11-01 19:52 UTC by Report Bug Copy Issue Report `57%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
72			// if ($node instanceof Nodes\Node) {
73			// return $iter($this->evaluate($node));
74			// }
75			// return $node;
76			// });
77			//
78			// return $iter($node);
79			return $this->evaluate($node);
80			}
81
82			/**
83			* @param mixed $node
84			* @return mixed
85			*/
86			public function __invoke($node)
87			{
88			return $this->evaluate($node);
89			}
90
91			/**
92			* @return bool
93			*/
94			public function isRoot(): bool
95			{
96			return is_null($this->parent);
97			}
98
99			/**
100			* @param string $key
101			* @return bool
102			*/
103			public function has(string $key): bool
104			{
105			$iter = tail(function ($key, Frame $frame) use (&$iter) {
106			if (array_key_exists($key, $frame->table)) {
107			return true;
108			}
109			if ($frame->isRoot()) {
110			return false;
111			}
112			return $iter($key, $frame->parent);
113			});
114
115			return $iter($key, $this);
116			}
117
118			/**
119			* @param string $key
120			* @return mixed\|null
121			* @throws EvaluatorException
122			*/
123			public function get(string $key)
124			{
125			$iter = tail(function ($key, Frame $frame) use (&$iter) {
126			if (array_key_exists($key, $frame->table)) {
127			return $frame->table[$key];
128			}
129			if ($frame->isRoot()) {
130			throw new EvaluatorException("Symbol \"$key\" not defined");
131			}
132			return $iter($key, $frame->parent);
133			});
134
135			return $iter($key, $this);
136			}
137
138			/**
139			* @param string $key
140			* @param mixed $value
141			* @return void
142			*/
143			public function set(string $key, $value)
144			{
145			$this->table[$key] = $value;
146			}
147
148			/**
149			* @param array $path
150			* @return mixed
151			* @throws EvaluatorException
152			*/
153			public function getFromModule(array $path)
154			{
155			$node = array_reduce($path, function ($acc, $item) {
156			return (is_array($acc) && array_key_exists($item, $acc)) ? $acc[$item] : null;
157			}, $this->modules);
158
159			if (is_null($node)) {
160			throw new EvaluatorException("Module not imported");
161			}
162
163			return $node;
164			}
165
166			/**
167			* @param array $table
168			* @return Frame
169			*/
170			public function extend(array $table = []): Frame
171			{
172			return new self($this->evaluator, $table, $this);
173			}
174
175			/**
176			* @param array $table
177			* @return Frame
178			*/
179			public function replace(array $table = []): Frame
180			{
181			$this->table = array_merge($this->table, $table);
182			return $this;
183			}
184
185			/**
186			* @return string
187			*/
188			public function __toString()
189			{
190			return toString(array_keys($this->table));
191			}
192
193			/**
194			* @return Evaluator
195			*/
196			public function getEvaluator(): Evaluator
197			{
198			return $this->evaluator;
199			}
200
201			/**
202			* @param string $name Module name to use
203			* @param null\|string $alias Module alias name
204			*/
205			public function useModule(string $name, string $alias = null)
206			{
207			$module = $this->getEvaluator()->getModule($name);
208			$this->modules[$alias ?? $name] = $module;
209			}
210
211			/**
212			* @param string $name Module name to import
213			* @param array\|null $functions List of functions to import
214			*/
215			public function importModule(string $name, array $functions = null)
216			{
217			$module = $this->getEvaluator()->getModule($name);
218
219			$importFunctions = $functions ?? array_keys($module);
220
221			array_walk($importFunctions, function ($fn) use (&$module) {
222			$this->set($fn, $module[$fn]);
223			});
224			}
225			}
226

peacefulbit / packet-lite

Pull Request — master (#19)

Frame::__construct() A

Complexity

Size

Duplication

Importance

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