+time metrics

source/cli.ts

@@ -5,9 +5,10 @@ import { existsSync } from "https://deno.land/[email protected]/fs/mod.ts";
 import * as colors from "https://deno.land/[email protected]/fmt/colors.ts";
 
 import Function from "~/compiler/function.ts";
-import Package from "./compiler/package.ts";
-import { Panic } from "~/helper.ts";
+import Package from "~/compiler/package.ts";
 import Project from "~/compiler/project.ts";
+import { DisplayTimers, TimerStart, TimerEnd } from "~/helper.ts";
+import { Panic } from "~/helper.ts";
 
 if (Deno.args.includes("--version")) {
 	console.log("version: 0.0.0");
@@ -35,28 +36,33 @@ if (!(mainFunc instanceof Function)) {
 	Panic(`Main namespace is not a function: ${mainFunc.constructor.name}`);
 }
 
-
+TimerStart("compilation");
 mainFunc.compile();
+TimerEnd("compilation");
 
 if (project.failed) Panic(`Compilation ${colors.red("Failed")}`);
 
 if (!mainFunc.ref) Panic(`Main function not compiled correctly`);
 project.module.exportFunction("main", mainFunc.ref);
 
+TimerStart("serialize");
 await Deno.writeFile("out.wasm", project.module.toBinary());
+TimerEnd("serialize");
 
+TimerStart("wasm2wat");
 const command = new Deno.Command(
 	"wasm2wat",
-	{
-		args: ["-v", "out.wasm", "-o", "out.wat"]
-	}
+	{ args: ["-v", "out.wasm", "-o", "out.wat"] }
 );
 const { code, stdout, stderr } = await command.output();
 if (code !== 0) {
 	console.error("Invalid wasm generated");
 	console.error(new TextDecoder().decode(stderr));
 	Deno.exit(1);
 }
+TimerEnd("wasm2wat");
 console.log(new TextDecoder().decode(stdout));
 
-console.log(`  out: ${"out.wasm"}`);
+console.log(`  out: ${"out.wasm"}\n`);
+
+if (Deno.args.includes("--time")) DisplayTimers();

source/helper.ts

@@ -110,4 +110,40 @@ export function AlignDownInteger(x: number, multiple: number) {
 	return remainder !== 0
 		? x - remainder
 		: x;
+}
+
+
+
+
+const _timer: { [key: string]: { start: number, end: number } } = {};
+export function TimerStart(key: string) {
+	const now = Date.now();
+	_timer[key] = { start: now, end: now-1 };
+}
+
+export function TimerEnd(key: string) {
+	const now = Date.now();
+	if (!_timer[key]) return;
+	_timer[key].end = now;
+}
+
+export function DisplayTimers() {
+	const lines: string[][] = [];
+	const max = [0, 0];
+	for (const key in _timer) {
+		const entry = _timer[key];
+		const line = [key, (entry.end - entry.start)+"ms"];
+
+		max[0] = Math.max(max[0], line[0].length);
+		max[1] = Math.max(max[1], line[1].length);
+
+		lines.push(line);
+	}
+
+	let str = "Timers:";
+	for (const line of lines) {
+		str += `\n  ${line[0].padEnd(max[0])}  ${line[1].padStart(max[1])}`;
+	}
+
+	console.info(str);
 }