chore: Implement strict mode

azure-pipelines.yml

@@ -14,7 +14,7 @@ jobs:
       - script: echo '##vso[task.prependpath]$(HOME)/.deno/bin/'
       - script: npx eslint **/*.ts --max-warnings=0
       - script: deno run --allow-run --allow-write --allow-read format.ts --check
-      - script: deno run --allow-run --allow-net --allow-write --allow-read test.ts
+      - script: deno run --allow-run --allow-net --allow-write --allow-read --config=deno.tsconfig.json test.ts
 
   - job: "Mac"
     pool:
@@ -26,7 +26,7 @@ jobs:
       - script: echo '##vso[task.prependpath]$(HOME)/.deno/bin/'
       - script: eslint **/*.ts --max-warnings=0
       - script: deno run --allow-run --allow-write --allow-read format.ts --check
-      - script: deno run --allow-run --allow-net --allow-write --allow-read test.ts
+      - script: deno run --allow-run --allow-net --allow-write --allow-read --config=deno.tsconfig.json test.ts
 
   - job: "Windows"
     pool:
@@ -37,4 +37,4 @@ jobs:
       - bash: echo "##vso[task.prependpath]C:\Users\VssAdministrator\.deno\\bin"
       - bash: npx eslint **/*.ts --max-warnings=0
       - bash: deno.exe run --allow-run --allow-write --allow-read format.ts --check
-      - bash: deno.exe run --allow-run --allow-net --allow-write --allow-read test.ts
+      - bash: deno.exe run --allow-run --allow-net --allow-write --allow-read --config=deno.tsconfig.json test.ts

deno.tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "compilerOptions": {
+    "strict": true
+  }
+}

log/levels.ts

@@ -1,5 +1,5 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
-export const LogLevel = {
+export const LogLevel : {[key: string]: number } = {
   NOTSET: 0,
   DEBUG: 10,
   INFO: 20,
@@ -8,15 +8,6 @@ export const LogLevel = {
   CRITICAL: 50
 };
 
-const byName = {
-  NOTSET: LogLevel.NOTSET,
-  DEBUG: LogLevel.DEBUG,
-  INFO: LogLevel.INFO,
-  WARNING: LogLevel.WARNING,
-  ERROR: LogLevel.ERROR,
-  CRITICAL: LogLevel.CRITICAL
-};
-
 const byLevel = {
   [LogLevel.NOTSET]: "NOTSET",
   [LogLevel.DEBUG]: "DEBUG",
@@ -27,7 +18,7 @@ const byLevel = {
 };
 
 export function getLevelByName(name: string): number {
-  return byName[name];
+  return LogLevel[name];
 }
 
 export function getLevelName(level: number): string {

log/test.ts

@@ -16,7 +16,7 @@ class TestHandler extends log.handlers.BaseHandler {
 }
 
 test(async function defaultHandlers(): Promise<void> {
-  const loggers = {
+  const loggers: {[key: string]: (msg: string, ...args: any[]) => void} = {
     DEBUG: log.debug,
     INFO: log.info,
     WARNING: log.warning,
@@ -29,9 +29,8 @@ test(async function defaultHandlers(): Promise<void> {
       continue;
     }
 
-    const level = LogLevel[levelName];
     const logger = loggers[levelName];
-    const handler = new TestHandler(level);
+    const handler = new TestHandler(levelName);
 
     await log.setup({
       handlers: {