feat(tolk): don't show .acton symbols in contract/ (#295)

Author: i582

server/src/languages/tolk/psi/Reference.ts

@@ -165,6 +165,8 @@ export class Reference {
     }
 
     public processResolveVariants(proc: ScopeProcessor, state: ResolveState): boolean {
+        proc = this.visibleCompletionProcessor(proc, state)
+
         if (this.elementIsDeclarationName()) {
             // foo: Int
             // ^^^ our element
@@ -185,6 +187,22 @@ export class Reference {
               this.processUnqualifiedResolve(proc, state)
     }
 
+    private visibleCompletionProcessor(proc: ScopeProcessor, state: ResolveState): ScopeProcessor {
+        if (!state.get("completion") || !this.element.file.isInContractsDir) {
+            return proc
+        }
+
+        return new (class implements ScopeProcessor {
+            public execute(node: TolkNode, nodeState: ResolveState): boolean {
+                if (node.file.fromActon && !node.file.fromStdlib) {
+                    return true
+                }
+
+                return proc.execute(node, nodeState)
+            }
+        })()
+    }
+
     private elementIsDeclarationName(): boolean {
         // foo: int
         // ^^^ maybe this

server/src/languages/tolk/psi/TolkFile.ts

@@ -44,6 +44,14 @@ export class TolkFile extends File {
         return this.uri.endsWith(".test.tolk")
     }
 
+    public get isInContractsDir(): boolean {
+        const actonToml = ActonToml.discover(this.uri)
+        if (!actonToml) return false
+
+        const relative = path.relative(actonToml.workingDir, this.path).replace(/\\/g, "/")
+        return relative === "contracts" || relative.startsWith("contracts/")
+    }
+
     public symbolAt(offset: number): string {
         return this.content[offset] ?? ""
     }