fix(eslint-plugin): [method-signature-style] don't auto-fix interfaces within namespaces

[aggmoulik]

Fixes #2340

Signed-off-by: Moulik Aggarwal qwertymoulik@gmail.com

[typescript-eslint]

Thanks for the PR, @aggmoulik!

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[aggmoulik]

Fixes #2340

[codecov]

Codecov Report

Merging #2678 into master will decrease coverage by 0.03%.
The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master    #2678      +/-   ##
==========================================
- Coverage   92.82%   92.79%   -0.04%     
==========================================
  Files         294      294              
  Lines        9670     9682      +12     
  Branches     2712     2717       +5     
==========================================
+ Hits         8976     8984       +8     
- Misses        328      330       +2     
- Partials      366      368       +2     

Flag	Coverage Δ
#unittest	92.79% <82.35%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../eslint-plugin/src/rules/method-signature-style.ts	89.02% <82.35%> (-3.84%)	⬇️

[bradzacher]

the logic itself LGTM - just two comments.
thanks for working on this!

[bradzacher]

We can remove the any here with the catch-all Node type

Suggested change

	function isNodeParentModuleDeclaration(node: any): boolean {
	if (node.parent?.type === AST_NODE_TYPES.TSModuleDeclaration) {
	return true;
	}
	if (node.parent?.type === AST_NODE_TYPES.Program) {
	return false;
	}
	return isNodeParentModuleDeclaration(node.parent);
	}
	function isNodeParentModuleDeclaration(node: TSESTree.Node): boolean {
	if (!node.parent) {
	return false;
	}
	if (node.parent.type === AST_NODE_TYPES.TSModuleDeclaration) {
	return true;
	}
	if (node.parent.type === AST_NODE_TYPES.Program) {
	return false;
	}
	return isNodeParentModuleDeclaration(node.parent);
	}

[bradzacher]

indent the example one line, and then you can use the fixer to auto-format the code block

Suggested change

	code: noFormat`
	declare global {
	namespace jest {
	interface Matchers<R, T> {
	// Add overloads specific to the DOM
	toHaveProp<K extends keyof DomPropsOf<T>>(name: K, value?: DomPropsOf<T>[K]): R;
	toHaveProps(props: Partial<DomPropsOf<T>>): R;
	}
	}
	}
	`,
	code: `
	declare global {
	namespace jest {
	interface Matchers<R, T> {
	// Add overloads specific to the DOM
	toHaveProp<K extends keyof DomPropsOf<T>>(name: K, value?: DomPropsOf<T>[K]): R;
	toHaveProps(props: Partial<DomPropsOf<T>>): R;
	}
	}
	}
	`,

[aggmoulik]

Hy @bradzacher , I have updated things you suggested.

[bradzacher]

LGTM - thanks for your contribution!

[aggmoulik]

Hy @bradzacher, Can you please add hacktoberfest-accepted label here.

[bradzacher]

I thought they only need a tag if they weren't going to be merged in October?