Implement strategy pattern for completion backend

phpinspect-class.el

@@ -78,7 +78,9 @@
     (phpinspect--class-update-static-method class method))
 
   (setf (phpinspect--class-variables class)
-        (alist-get 'variables index))
+        (append (alist-get 'variables index)
+                (alist-get 'constants index)
+                (alist-get 'static-variables index)))
 
   (setf (phpinspect--class-extended-classes class)
         (seq-filter
@@ -108,6 +110,15 @@
       (when (string= variable-name (phpinspect--variable-name variable))
         (throw 'found variable)))))
 
+(cl-defmethod phpinspect--class-get-variables ((class phpinspect--class))
+  (seq-filter #'phpinspect--variable-vanilla-p (phpinspect--class-variables class)))
+
+(cl-defmethod phpinspect--class-get-static-variables ((class phpinspect--class))
+  (seq-filter #'phpinspect--variable-static-p (phpinspect--class-variables class)))
+
+(cl-defmethod phpinspect--class-get-constants ((class phpinspect--class))
+  (seq-filter #'phpinspect--variable-const-p (phpinspect--class-variables class)))
+
 (cl-defmethod phpinspect--add-method-copy-to-map
   ((map hash-table)
    (class-name phpinspect--type)

phpinspect-completion.el

@@ -98,13 +98,14 @@ Returns list of `phpinspect--completion'."
          (point (phpinspect-completion-query-point query))
          (buffer-map (phpinspect-buffer-parse-map buffer))
          (rctx (phpinspect-get-resolvecontext buffer-map point))
-         (candidates))
+         (completion-list (phpinspect--make-completion-list)))
     (dolist (strategy phpinspect-completion-strategies)
       (when (phpinspect-comp-strategy-supports strategy query rctx)
         (phpinspect--log "Found matching completion strategy. Executing...")
-        (nconc candidates (phpinspect-comp-strategy-execute strategy query rctx))))
-
-    (mapcar #'phpinspect--make-completion candidates)))
+        (dolist (candidate (phpinspect-comp-strategy-execute strategy query rctx))
+          (phpinspect--completion-list-add
+           completion-list (phpinspect--make-completion candidate)))))
+    completion-list))
 
 (cl-defgeneric phpinspect-comp-strategy-supports (strategy (query phpinspect-completion-query) (context phpinspect--resolvecontext))
   "Should return non-nil if STRATEGY should be deployed for QUERY
@@ -137,20 +138,31 @@ and CONTEXT. All strategies must implement this method.")
 
 (cl-defmethod phpinspect-comp-strategy-supports
   ((strat phpinspect-comp-attribute) (q phpinspect-completion-query)
-   (context phpinspect--resolvecontext))
+   (rctx phpinspect--resolvecontext))
   (phpinspect-object-attrib-p (car (last (phpinspect--resolvecontext-subject rctx)))))
 
 (cl-defmethod phpinspect-comp-strategy-execute
-  ((strat phpinspect-comp-sigil) (q phpinspect-completion-query)
+  ((strat phpinspect-comp-attribute) (q phpinspect-completion-query)
    (rctx phpinspect--resolvecontext))
-  (phpinspect-suggest-variables-at-point rctx))
+  (phpinspect-suggest-attributes-at-point rctx))
 
 (cl-defstruct (phpinspect-comp-static-attribute (:constructor phpinspect-make-comp-static-attribute))
   "Completion strategy for static attributes")
 
-(cl-defstruct (phpinspect-comp-bareword (:constructor phpinspect-make-comp-bareword))
-  "Completion strategy for bare words")
+(cl-defmethod phpinspect-comp-strategy-supports
+  ((strat phpinspect-comp-static-attribute) (q phpinspect-completion-query)
+   (rctx phpinspect--resolvecontext))
+  (phpinspect-static-attrib-p (car (last (phpinspect--resolvecontext-subject rctx)))))
+
+(cl-defmethod phpinspect-comp-strategy-execute
+  ((strat phpinspect-comp-static-attribute) (q phpinspect-completion-query)
+   (rctx phpinspect--resolvecontext))
+  (phpinspect-suggest-attributes-at-point rctx 'static))
 
+(defvar phpinspect-completion-strategies (list (phpinspect-make-comp-attribute)
+                                               (phpinspect-make-comp-sigil)
+                                               (phpinspect-make-comp-static-attribute))
+  "List of completion strategies that phpinspect can use.")
 
 (cl-defmethod phpinspect--make-completion
   ((completion-candidate phpinspect--function))

phpinspect-index.el

@@ -132,7 +132,9 @@ function (think \"new\" statements, return types etc.)."
                        (cadr (cadr (car (last var-annotations))))))))
     (phpinspect--log "calling resolver from index-variable-from-scope")
     (phpinspect--make-variable
-     :name variable-name
+     ;; Static class variables are always prefixed with dollar signs when
+     ;; referenced.
+     :name (if static (concat "$" variable-name) variable-name)
      :scope `(,(car scope))
      :lifetime (when static '(:static))
      :type (if type (funcall type-resolver (phpinspect--make-type :name type))))))

phpinspect-suggest.el

@@ -99,9 +99,10 @@ more recent"
   (let ((class (phpinspect-get-or-create-cached-project-class
                 (phpinspect-current-project-root)
                 class-name)))
-    ;; TODO return static variables/constants when static is set
     (when class
-      (phpinspect--class-variables class))))
+      (if static
+          (append (phpinspect--class-get-static-variables class) (phpinspect--class-get-constants class))
+        (phpinspect--class-get-variables class)))))
 
 (defun phpinspect--make-method-lister (resolvecontext buffer-classes &optional static)
   (lambda (fqn)

phpinspect-type.el

@@ -260,5 +260,9 @@ mutability of the variable")
 (defun phpinspect--variable-const-p (variable)
   (phpinspect-const-p (phpinspect--variable-mutability variable)))
 
+(defun phpinspect--variable-vanilla-p (variable)
+  (not (or (phpinspect--variable-static-p variable)
+           (phpinspect--variable-const-p variable))))
+
 (provide 'phpinspect-type)
 ;;; phpinspect-type.el ends here

phpinspect.el

@@ -146,7 +146,6 @@ users will have to use \\[phpinspect-purge-cache]."
             (when imports
               (phpinspect-project-enqueue-imports project imports)))))
 
-
       (when imports (phpinspect-project-enqueue-imports project imports)))))
 
 
@@ -226,26 +225,11 @@ Example configuration:
 
 (defun phpinspect--suggest-at-point ()
   (phpinspect--log "Entering suggest at point. Point: %d" (point))
-  (let* ((bmap (phpinspect-buffer-parse-map phpinspect-current-buffer))
-         (resolvecontext (phpinspect-get-resolvecontext bmap (phpinspect--determine-completion-point)))
-         (last-tokens (last (phpinspect--resolvecontext-subject resolvecontext) 2)))
-    (phpinspect--log "Subject: %s" (phpinspect--resolvecontext-subject
-                                    resolvecontext))
-    (phpinspect--log "Last tokens: %s" last-tokens)
-    (cond ((and (phpinspect-object-attrib-p (car last-tokens))
-                (phpinspect-word-p (cadr last-tokens)))
-           (phpinspect--log "word-attributes")
-           (phpinspect-suggest-attributes-at-point resolvecontext))
-          ((phpinspect-object-attrib-p (cadr last-tokens))
-           (phpinspect--log "object-attributes")
-           (phpinspect-suggest-attributes-at-point resolvecontext))
-          ((phpinspect-static-attrib-p (cadr last-tokens))
-           (phpinspect--log "static-attributes")
-           (phpinspect-suggest-attributes-at-point token-tree resolvecontext t))
-          ((phpinspect-variable-p (car(phpinspect--resolvecontext-subject
-                                       resolvecontext)))
-           (phpinspect-suggest-variables-at-point resolvecontext)))))
-
+  (phpinspect-completion-query-execute
+   (phpinspect-make-completion-query
+    :buffer phpinspect-current-buffer
+    :completion-point (phpinspect--determine-completion-point)
+    :point (point))))
 
 (defun phpinspect-company-backend (command &optional arg &rest _ignored)
   "A company backend for PHP."
@@ -271,12 +255,8 @@ Example configuration:
       (insert "(")))
    ((eq command 'candidates)
     (catch 'phpinspect-parse-interrupted
-      (let ((completion-list (phpinspect--make-completion-list))
+      (let ((completion-list (phpinspect--suggest-at-point))
             (candidates))
-        (dolist (completion (phpinspect--suggest-at-point))
-          (phpinspect--completion-list-add
-           completion-list
-           (phpinspect--make-completion completion)))
 
         (setq candidates
               (seq-filter (lambda (completion)