src/Executor/Values.php
protected static function coerceValue(TypeInterface $type, $value)
    {
        if ($type instanceof NonNullModifier) {
            // Note: we're not checking that the result of coerceValue is non-null.
            // We only call this function after calling isValidValue.
            return self::coerceValue($type->getWrappedType(), $value);
        }

        if (!isset($value)) {
            return NULL;
        }

        if ($type instanceof ListModifier) {
            $itemType = $type->getWrappedType();
            if (is_array($value)) {
                return array_map(function ($item) use ($itemType) {
                    return Values::coerceValue($itemType, $item);
                }, $value);
            } else {
                return [self::coerceValue($itemType, $value)];
            }
        }

        if ($type instanceof InputObjectType) {
            $fields = $type->getFields();
            $object = [];
            foreach ($fields as $fieldName => $field) {
                $fieldValue = self::coerceValue($field->getType(), $value[$fieldName]);
                $object[$fieldName] = $fieldValue === NULL ? $field->getDefaultValue() : $fieldValue;
            }

            return $object;
        }

        if ($type instanceof ScalarType || $type instanceof EnumType) {
            $coerced = $type->coerce($value);
            if (NULL !== $coerced) {
                return $coerced;
            }
        }

        return NULL;
    }
protected static function coerceValue(TypeInterface $type, $value)
    {
        if ($type instanceof NonNullModifier) {
            // Note: we're not checking that the result of coerceValue is non-null.
            // We only call this function after calling isValidValue.
            return self::coerceValue($type->getWrappedType(), $value);
        }

        if (!isset($value)) {
            return NULL;
        }

        if ($type instanceof ListModifier) {
            $itemType = $type->getWrappedType();
            if (is_array($value)) {
                return array_map(function ($item) use ($itemType) {
                    return Values::coerceValue($itemType, $item);
                }, $value);
            } else {
                return [self::coerceValue($itemType, $value)];
            }
        }

        if ($type instanceof InputObjectType) {
            $fields = $type->getFields();
            $object = [];
            foreach ($fields as $fieldName => $field) {
                $fieldValue = self::coerceValue($field->getType(), $value[$fieldName]);
                $object[$fieldName] = $fieldValue === NULL ? $field->getDefaultValue() : $fieldValue;
            }

            return $object;
        }

        if ($type instanceof ScalarType || $type instanceof EnumType) {
            $coerced = $type->coerce($value);
            if (NULL !== $coerced) {
                return $coerced;
            }
        }

        return NULL;
    }
protected static function coerceValue ( TypeInterface $ type , $ value ) { if ( $ type instanceof NonNullModifier ) { // Note: we're not checking that the result of coerceValue is non-null. // We only call this function after calling isValidValue. return self :: coerceValue ( $ type -> getWrappedType ( ) , $ value ) ; } if ( ! isset ( $ value ) ) { return NULL ; } if ( $ type instanceof ListModifier ) { $ itemType = $ type -> getWrappedType ( ) ; if ( is_array ( $ value ) ) { return array_map ( function ( $ item ) use ( $ itemType ) { return Values :: coerceValue ( $ itemType , $ item ) ; } , $ value ) ; } else { return [ self :: coerceValue ( $ itemType , $ value ) ] ; } } if ( $ type instanceof InputObjectType ) { $ fields = $ type -> getFields ( ) ; $ object = [ ] ; foreach ( $ fields as $ fieldName => $ field ) { $ fieldValue = self :: coerceValue ( $ field -> getType ( ) , $ value [ $ fieldName ] ) ; $ object [ $ fieldName ] = $ fieldValue === NULL ? $ field -> getDefaultValue ( ) : $ fieldValue ; } return $ object ; } if ( $ type instanceof ScalarType || $ type instanceof EnumType ) { $ coerced = $ type -> coerce ( $ value ) ; if ( NULL !== $ coerced ) { return $ coerced ; } } return NULL ; }
Given a type and any value, return a runtime value coerced to match the
type.

@param TypeInterface $type
@param $value

@return array|mixed|null|string
Given a type and any value return a runtime value coerced to match the type .