feat: update to TypeScript 4.0 (#6514)

9 files changed, 32 insertions, 20 deletions

diff --git a/std/encoding/_yaml/dumper/dumper.ts b/std/encoding/_yaml/dumper/dumper.ts
index e1f1a142a..ec517ffb2 100644
--- a/std/encoding/_yaml/dumper/dumper.ts
+++ b/std/encoding/_yaml/dumper/dumper.ts
@@ -499,7 +499,9 @@ function writeScalar(
         return `'${string.replace(/'/g, "''")}'`;
       case STYLE_LITERAL:
         return `|${blockHeader(string, state.indent)}${
-          dropEndingNewline(indentString(string, indent))
+          dropEndingNewline(
+            indentString(string, indent),
+          )
         }`;
       case STYLE_FOLDED:
         return `>${blockHeader(string, state.indent)}${
@@ -867,7 +869,10 @@ function inspectNode(
   }
 }
 
-function getDuplicateReferences(object: object, state: DumperState): void {
+function getDuplicateReferences(
+  object: Record<string, unknown>,
+  state: DumperState,
+): void {
   const objects: Any[] = [],
     duplicatesIndexes: number[] = [];
 
diff --git a/std/encoding/_yaml/example/sample_document.ts b/std/encoding/_yaml/example/sample_document.ts
index f66b3c417..8ef714d42 100644
--- a/std/encoding/_yaml/example/sample_document.ts
+++ b/std/encoding/_yaml/example/sample_document.ts
@@ -7,7 +7,8 @@ import { parse } from "../../yaml.ts";
   const yml = Deno.readFileSync(`${Deno.cwd()}/example/sample_document.yml`);
 
   const document = new TextDecoder().decode(yml);
-  const obj = parse(document) as object;
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const obj = parse(document) as Record<string, any>;
   console.log(obj);
 
   let i = 0;
diff --git a/std/encoding/_yaml/loader/loader.ts b/std/encoding/_yaml/loader/loader.ts
index 216e315f2..18bab93f5 100644
--- a/std/encoding/_yaml/loader/loader.ts
+++ b/std/encoding/_yaml/loader/loader.ts
@@ -813,7 +813,7 @@ function readFlowCollection(state: LoaderState, nodeIndent: number): boolean {
         valueNode,
       );
     } else if (isPair) {
-      (result as Array<{}>).push(
+      (result as ArrayObject[]).push(
         storeMappingPair(
           state,
           null,
diff --git a/std/encoding/_yaml/loader/loader_state.ts b/std/encoding/_yaml/loader/loader_state.ts
index 60a7ccabc..81edeb28d 100644
--- a/std/encoding/_yaml/loader/loader_state.ts
+++ b/std/encoding/_yaml/loader/loader_state.ts
@@ -22,7 +22,8 @@ export interface LoaderStateOptions {
   onWarning?(this: null, e?: YAMLError): void;
 }
 
-export type ResultType = [] | {} | string;
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export type ResultType = any[] | Record<string, any> | string;
 
 export class LoaderState extends State {
   public documents: Any[] = [];
diff --git a/std/encoding/_yaml/stringify.ts b/std/encoding/_yaml/stringify.ts
index 9b3b5a80e..ed7b82d84 100644
--- a/std/encoding/_yaml/stringify.ts
+++ b/std/encoding/_yaml/stringify.ts
@@ -13,6 +13,9 @@ export type DumpOptions = DumperStateOptions;
  *
  * You can disable exceptions by setting the skipInvalid option to true.
  */
-export function stringify(obj: object, options?: DumpOptions): string {
+export function stringify(
+  obj: Record<string, unknown>,
+  options?: DumpOptions,
+): string {
   return dump(obj, options);
 }
diff --git a/std/encoding/_yaml/type.ts b/std/encoding/_yaml/type.ts
index 18dee338c..89a91106b 100644
--- a/std/encoding/_yaml/type.ts
+++ b/std/encoding/_yaml/type.ts
@@ -17,7 +17,7 @@ interface TypeOptions {
   resolve?: (data: Any) => boolean;
   construct?: (data: string) => Any;
   instanceOf?: Any;
-  predicate?: (data: object) => boolean;
+  predicate?: (data: Record<string, unknown>) => boolean;
   represent?: RepresentFn | ArrayObject<RepresentFn>;
   defaultStyle?: StyleVariant;
   styleAliases?: ArrayObject;
@@ -31,7 +31,7 @@ export class Type {
   public tag: string;
   public kind: KindType | null = null;
   public instanceOf: Any;
-  public predicate?: (data: object) => boolean;
+  public predicate?: (data: Record<string, unknown>) => boolean;
   public represent?: RepresentFn | ArrayObject<RepresentFn>;
   public defaultStyle?: StyleVariant;
   public styleAliases?: ArrayObject;
diff --git a/std/encoding/_yaml/utils.ts b/std/encoding/_yaml/utils.ts
index e009ae3cf..3d4e48771 100644
--- a/std/encoding/_yaml/utils.ts
+++ b/std/encoding/_yaml/utils.ts
@@ -38,7 +38,7 @@ export function isUndefined(value: unknown): value is undefined {
   return value === undefined;
 }
 
-export function isObject(value: unknown): value is object {
+export function isObject(value: unknown): value is Record<string, unknown> {
   return value !== null && typeof value === "object";
 }
 
diff --git a/std/encoding/toml.ts b/std/encoding/toml.ts
index 121459dbf..212c14bdc 100644
--- a/std/encoding/toml.ts
+++ b/std/encoding/toml.ts
@@ -124,10 +124,14 @@ class Parser {
     }
     this.tomlLines = merged;
   }
-  _unflat(keys: string[], values: object = {}, cObj: object = {}): object {
+  _unflat(
+    keys: string[],
+    values: Record<string, unknown> | unknown[] = {},
+    cObj: Record<string, unknown> | unknown[] = {},
+  ): Record<string, unknown> {
     const out: Record<string, unknown> = {};
     if (keys.length === 0) {
-      return cObj;
+      return cObj as Record<string, unknown>;
     } else {
       if (Object.keys(cObj).length === 0) {
         cObj = values;
@@ -398,7 +402,7 @@ class Parser {
           const shift = pathDeclaration.shift();
           if (shift) {
             k = shift.replace(/"/g, "");
-            v = this._unflat(pathDeclaration, v as object);
+            v = this._unflat(pathDeclaration, v as Record<string, unknown>);
           }
         } else {
           k = k.replace(/"/g, "");
@@ -411,7 +415,7 @@ class Parser {
       }
     }
   }
-  parse(): object {
+  parse(): Record<string, unknown> {
     this._sanitize();
     this._parseLines();
     this._cleanOutput();
@@ -433,9 +437,9 @@ function joinKeys(keys: string[]): string {
 
 class Dumper {
   maxPad = 0;
-  srcObject: object;
+  srcObject: Record<string, unknown>;
   output: string[] = [];
-  constructor(srcObjc: object) {
+  constructor(srcObjc: Record<string, unknown>) {
     this.srcObject = srcObjc;
   }
   dump(): string[] {
@@ -592,11 +596,11 @@ class Dumper {
   }
 }
 
-export function stringify(srcObj: object): string {
+export function stringify(srcObj: Record<string, unknown>): string {
   return new Dumper(srcObj).dump().join("\n");
 }
 
-export function parse(tomlString: string): object {
+export function parse(tomlString: string): Record<string, unknown> {
   // File is potentially using EOL CRLF
   tomlString = tomlString.replace(/\r\n/g, "\n").replace(/\\\n/g, "\n");
   return new Parser(tomlString).parse();
diff --git a/std/encoding/toml_test.ts b/std/encoding/toml_test.ts
index 565fe1eeb..9b5e1a56b 100644
--- a/std/encoding/toml_test.ts
+++ b/std/encoding/toml_test.ts
@@ -6,7 +6,7 @@ import { parse, stringify } from "./toml.ts";
 
 const testFilesDir = path.resolve("encoding", "testdata");
 
-function parseFile(filePath: string): object {
+function parseFile(filePath: string): Record<string, unknown> {
   if (!existsSync(filePath)) {
     throw new Error(`File not found: ${filePath}`);
   }
@@ -254,7 +254,6 @@ Deno.test({
 Deno.test({
   name: "[TOML] Cargo",
   fn(): void {
-    /* eslint-disable @typescript-eslint/camelcase */
     const expected = {
       workspace: { members: ["./", "core"] },
       bin: [{ name: "deno", path: "cli/main.rs" }],
@@ -291,7 +290,6 @@ Deno.test({
       },
       target: { "cfg(windows)": { dependencies: { winapi: "0.3.6" } } },
     };
-    /* eslint-enable @typescript-eslint/camelcase */
     const actual = parseFile(path.join(testFilesDir, "cargo.toml"));
     assertEquals(actual, expected);
   },