PHPLIB-1340 Remove Projection Operators (#54)

They can't be used in $project stage as I was expecting. They are dedicated to the find command. The $slice must be used as an expression (with the array as 1st parameter) and $elemMatch is replaced by $filter.

Author: GromNaN

generator/config/definitions.php

@@ -56,16 +56,4 @@
             OperatorTestGenerator::class,
         ],
     ],
-
-    // Projection Operators
-    [
-        'configFiles' => __DIR__ . '/projection',
-        'namespace' => 'MongoDB\\Builder\\Projection',
-        'classNameSuffix' => 'Operator',
-        'generators' => [
-            OperatorClassGenerator::class,
-            OperatorFactoryGenerator::class,
-            OperatorTestGenerator::class,
-        ],
-    ],
 ];

generator/config/expression/slice.yaml

@@ -3,7 +3,6 @@ name: $slice
 link: 'https://www.mongodb.com/docs/manual/reference/operator/aggregation/slice/'
 type:
     - resolvesToArray
-    - projection
 encode: array
 description: |
     Returns a subset of an array.

generator/config/expressions.php

@@ -89,10 +89,6 @@
         'returnType' => Type\QueryInterface::class,
         'acceptedTypes' => [Type\QueryInterface::class, 'array'],
     ],
-    'projection' => [
-        'returnType' => Type\ProjectionInterface::class,
-        'acceptedTypes' => [Type\ProjectionInterface::class, ...$bsonTypes['object']],
-    ],
     'accumulator' => [
         'returnType' => Type\AccumulatorInterface::class,
         'acceptedTypes' => [Type\AccumulatorInterface::class, ...$bsonTypes['object']],

generator/config/projection/elemMatch.yaml

@@ -23,7 +23,6 @@
                         "type": "string",
                         "enum": [
                             "accumulator",
-                            "projection",
                             "stage",
                             "query",
                             "fieldQuery",
@@ -113,7 +112,6 @@
                             "window",
                             "expression",
                             "geometry",
-                            "projection",
                             "fieldPath",
                             "any",
                             "resolvesToNumber", "numberFieldPath", "number",

generator/config/projection/filter.yaml

@@ -11,5 +11,4 @@ arguments:
         name: specification
         type:
             - expression
-            - projection
         variadic: object