Support for Variable and MethodCall with chain for autocompletion

[N1ebieski]

This PR adds support for VariableParser and MethodCall with chain for autocomplete.

Example with VariableParser:

Before:

php-parser autocomplete "<div>{{ \$user->" --debug
[]

After:

php-parser autocomplete "<div>{{ \$user->" --debug
================================================================================
================================================================================
                              STARTING TO PARSE
================================================================================
================================================================================

Microsoft\PhpParser\Node\SourceFileNode <div>{{ $user->
+ Context: App\Contexts\Base
* Parsing: App\Parsers\SourceFileNodeParser

 Microsoft\PhpParser\Node\Statement\InlineHtml <div>{{ $user->
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\InlineHtmlParser


================================================================================
================================================================================
                              STARTING TO PARSE
================================================================================
================================================================================

Microsoft\PhpParser\Node\SourceFileNode <?php $user->;
+ Context: App\Contexts\Base
* Parsing: App\Parsers\SourceFileNodeParser

 Microsoft\PhpParser\Node\Statement\InlineHtml <?php 
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\InlineHtmlParser

 Microsoft\PhpParser\Node\Statement\ExpressionStatement $user->;
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\ExpressionStatementParser

  Microsoft\PhpParser\Node\Expression\MemberAccessExpression $user->
  + Context: App\Contexts\MethodCall
  * Parsing: App\Parsers\MemberAccessExpressionParser

   Microsoft\PhpParser\Node\Expression\Variable $user
   + Context: App\Contexts\Variable
   * Parsing: App\Parsers\VariableParser

{
    "type": "variable",
    "autocompleting": true,
    "name": "user",
    "parent": {
        "type": "methodCall",
        "methodName": "",
        "className": null,
        "arguments": {
            "type": "arguments",
            "autocompletingIndex": 0,
            "children": []
        },
        "parent": {
            "type": "base",
            "parent": null
        }
    }
}

Example with MethodCall with chain:

Before:

php-parser autocomplete "<div>{{ \$user->post->" --debug
[]

After:

php-parser autocomplete "<div>{{ \$user->post->" --debug
================================================================================
================================================================================
                              STARTING TO PARSE
================================================================================
================================================================================

Microsoft\PhpParser\Node\SourceFileNode <div>{{ $user->post->
+ Context: App\Contexts\Base
* Parsing: App\Parsers\SourceFileNodeParser

 Microsoft\PhpParser\Node\Statement\InlineHtml <div>{{ $user->post->
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\InlineHtmlParser


================================================================================
================================================================================
                              STARTING TO PARSE
================================================================================
================================================================================

Microsoft\PhpParser\Node\SourceFileNode <?php $user->post->;
+ Context: App\Contexts\Base
* Parsing: App\Parsers\SourceFileNodeParser

 Microsoft\PhpParser\Node\Statement\InlineHtml <?php 
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\InlineHtmlParser

 Microsoft\PhpParser\Node\Statement\ExpressionStatement $user->post->;
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\ExpressionStatementParser

  Microsoft\PhpParser\Node\Expression\MemberAccessExpression $user->post->
  + Context: App\Contexts\MethodCall
  * Parsing: App\Parsers\MemberAccessExpressionParser

   Microsoft\PhpParser\Node\Expression\MemberAccessExpression $user->post
   + Context: App\Contexts\MethodCall
   * Parsing: App\Parsers\MemberAccessExpressionParser

    Microsoft\PhpParser\Node\Expression\Variable $user
    + Context: App\Contexts\Variable
    * Parsing: App\Parsers\VariableParser

{
    "type": "methodCall",
    "autocompleting": true,
    "methodName": "post",
    "className": null,
    "arguments": {
        "type": "arguments",
        "autocompletingIndex": 0,
        "children": []
    },
    "parent": {
        "type": "methodCall",
        "methodName": "",
        "className": null,
        "arguments": {
            "type": "arguments",
            "autocompletingIndex": 0,
            "children": []
        },
        "parent": {
            "type": "base",
            "parent": null
        }
    }
}

Should not interfere with other autocompletions. For example:

php-parser autocomplete "<?php

use Illuminate\Support\Facades\Validator;

Validator::validate(\$attributes, ['name' => '" --debug

================================================================================
================================================================================
                              STARTING TO PARSE
================================================================================
================================================================================

Microsoft\PhpParser\Node\SourceFileNode <?php use Illuminate\Support\Facades\Validator; Va
+ Context: App\Contexts\Base
* Parsing: App\Parsers\SourceFileNodeParser

 Microsoft\PhpParser\Node\Statement\InlineHtml <?php 
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\InlineHtmlParser

 Microsoft\PhpParser\Node\Statement\NamespaceUseDeclaration use Illuminate\Support\Facades\Validator;
  Microsoft\PhpParser\Node\DelimitedList\NamespaceUseClauseList Illuminate\Support\Facades\Validator
   Microsoft\PhpParser\Node\NamespaceUseClause Illuminate\Support\Facades\Validator
    Microsoft\PhpParser\Node\QualifiedName Illuminate\Support\Facades\Validator
 Microsoft\PhpParser\Node\Statement\ExpressionStatement Validator::validate($attributes, ['name' =>
 + Context: App\Contexts\Base
 * Parsing: App\Parsers\ExpressionStatementParser

  Microsoft\PhpParser\Node\Expression\CallExpression Validator::validate($attributes, ['name' =>
  + Context: App\Contexts\MethodCall
  * Parsing: App\Parsers\CallExpressionParser

   Microsoft\PhpParser\Node\Expression\ScopedPropertyAccessExpression Validator::validate
   + Context: App\Contexts\MethodCall
   * Parsing: App\Parsers\ScopedPropertyAccessExpressionParser

    Microsoft\PhpParser\Node\QualifiedName Validator
   Microsoft\PhpParser\Node\DelimitedList\ArgumentExpressionList $attributes, ['name' =>
   + Context: App\Contexts\MethodCall
   * Parsing: App\Parsers\ArgumentExpressionListParser

    Microsoft\PhpParser\Node\Expression\ArgumentExpression $attributes
    + Context: App\Contexts\Argument
    * Parsing: App\Parsers\ArgumentExpressionParser

     Microsoft\PhpParser\Node\Expression\Variable $attributes
     + Context: App\Contexts\Variable
     * Parsing: App\Parsers\VariableParser

    Microsoft\PhpParser\Node\Expression\ArgumentExpression ['name' =>
    + Context: App\Contexts\Argument
    * Parsing: App\Parsers\ArgumentExpressionParser

     Microsoft\PhpParser\Node\Expression\ArrayCreationExpression ['name' =>
     + Context: App\Contexts\ArrayValue
     * Parsing: App\Parsers\ArrayCreationExpressionParser

      Microsoft\PhpParser\Node\DelimitedList\ArrayElementList 'name' =>
       Microsoft\PhpParser\Node\ArrayElement 'name' =>
       + Context: App\Contexts\ArrayItem
       * Parsing: App\Parsers\ArrayElementParser

        Microsoft\PhpParser\Node\StringLiteral 'name'
        + Context: App\Contexts\StringValue
        * Parsing: App\Parsers\StringLiteralParser

{
    "type": "methodCall",
    "autocompleting": true,
    "methodName": "validate",
    "className": "Illuminate\\Support\\Facades\\Validator",
    "arguments": {
        "type": "arguments",
        "autocompletingIndex": 1,
        "children": [
            {
                "type": "argument",
                "name": null,
                "children": [
                    {
                        "type": "variable",
                        "name": "attributes"
                    }
                ]
            },
            {
                "type": "argument",
                "name": null,
                "children": [
                    {
                        "type": "array",
                        "autocompleting": true,
                        "children": [
                            {
                                "type": "array_item",
                                "key": {
                                    "type": "string",
                                    "value": "name"
                                },
                                "value": null,
                                "autocompletingValue": true
                            }
                        ],
                        "autocompletingKey": false,
                        "autocompletingValue": true
                    }
                ]
            }
        ]
    },
    "parent": {
        "type": "base",
        "parent": null
    }
}

This PR depends on #14 and #12