设计tracer

src/tracers.ts/commander/index.ts

@@ -1,7 +1,7 @@
 import type { TracerCommand } from "../types/command";
 
 export class Commander {
-  private commands: TracerCommand[];
+  private commands: TracerCommand<unknown>[];
 
   private constructor() {
     this.commands = [];
@@ -16,7 +16,7 @@ export class Commander {
     return this.instance;
   }
 
-  public command(command: TracerCommand) {
+  public command<T = never>(command: TracerCommand<T>) {
     this.commands.push(command);
   }
 

src/tracers.ts/tracers/array-tracer.ts

@@ -41,9 +41,9 @@ export class ArrayTracer<T> {
     });
   }
 
-  public expand(size: number) {}
+  public extend(size: number) {}
 
-  public reduce(size: number) {}
+  public shrink(size: number) {}
 
   public pick(index: number) {}
 

src/tracers.ts/types/command/array-tracer-command.ts

@@ -1,52 +1,52 @@
 export type ArrayTracerDefineCommand = {
-  tracer: null;
   action: "define";
+  tracer: null;
   params: { type: "ArrayTracer"; id: string; desc?: string };
 };
 
 export type ArrayTracerPresetCommand<T = unknown> = {
-  tracer: string;
   action: "preset";
+  tracer: string;
   params: T[];
 };
 
 export type ArrayTracerExtendCommand = {
-  tracer: string;
   action: "extend";
+  tracer: string;
   params: { size: number };
 };
 
 export type ArrayTracerShrinkCommand = {
-  tracer: string;
   action: "shrink";
+  tracer: string;
   params: { size: number };
 };
 
 export type ArrayTracerPickCommand = {
-  tracer: string;
   action: "pick";
+  tracer: string;
   params: { index: number };
 };
 
 export type ArrayTracerDropCommand = {
-  tracer: string;
   action: "drop";
+  tracer: string;
   params: { index: number };
 };
 
 export type ArrayTracerPatchCommand<T = unknown> = {
-  tracer: string;
   action: "patch";
+  tracer: string;
   params: { index: number; value: T };
 };
 
 export type ArrayTracerResetCommand = {
-  tracer: string;
   action: "reset";
+  tracer: string;
   params: null;
 };
 
-export type ArrayTracerCommand<T = unknown> =
+export type ArrayTracerCommand<T = never> =
   | ArrayTracerDefineCommand
   | ArrayTracerPresetCommand<T>
   | ArrayTracerExtendCommand

src/tracers.ts/types/command/index.ts

@@ -2,4 +2,4 @@ import type { ArrayTracerCommand } from "./array-tracer-command";
 
 export * from "./array-tracer-command";
 
-export type TracerCommand = ArrayTracerCommand
+export type TracerCommand<T = never> = ArrayTracerCommand<T>;