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fix(eslint-plugin): [no-misused-promises] improve report loc for methods #10216

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Merged
merged 22 commits into from
Nov 10, 2024
Merged

fix(eslint-plugin): [no-misused-promises] improve report loc for methods #10216

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359e052
fix(eslint-plugin): correctly report errors for async methods returni…
gyumong Oct 27, 2024
d8c6635
test add coverage
gyumong Oct 27, 2024
3d26e12
fix: remove unreachable code
gyumong Oct 27, 2024
a5dbd87
fix: simplify redundant if checks in context.report logic
gyumong Oct 27, 2024
a762f40
test: specify error location in voidReturnProperty test cases
gyumong Oct 27, 2024
8b1393c
Merge branch 'main' into fix-no-misused-promises
gyumong Oct 27, 2024
432b792
fix lint
gyumong Oct 27, 2024
2207c17
Merge branch 'main' into fix-no-misused-promises
gyumong Oct 28, 2024
aa8f8c6
Merge branch 'main' into fix-no-misused-promises
gyumong Oct 29, 2024
4c7d787
test: add full loc (line, endLine, column, endColumn) to existing tes…
gyumong Oct 31, 2024
65ae628
test: add new invalid test cases for promise-returning methods withou…
gyumong Oct 31, 2024
801bf4c
fix : test col
gyumong Oct 31, 2024
f367c20
fix: log
gyumong Oct 31, 2024
09be707
Merge branch 'main' into fix-no-misused-promises
gyumong Oct 31, 2024
e79283c
Update packages/eslint-plugin/src/rules/no-misused-promises.ts
gyumong Nov 1, 2024
1278e3d
Merge branch 'main' into fix-no-misused-promises
gyumong Nov 4, 2024
2bc7666
refactor(no-misused-promises): improve function type checking in void…
gyumong Nov 4, 2024
2da0b5c
test(no-misused-promises): add test cases for isFunction utility usage
gyumong Nov 4, 2024
ac34e36
Merge branch 'main' into fix-no-misused-promises
gyumong Nov 5, 2024
c7ac4e6
test(no-misused-promises): add test cases
gyumong Nov 5, 2024
50a6252
Merge branch 'main' into fix-no-misused-promises
gyumong Nov 6, 2024
eb66dbd
Merge branch 'main' into fix-no-misused-promises
gyumong Nov 8, 2024
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42 changes: 34 additions & 8 deletions packages/eslint-plugin/src/rules/no-misused-promises.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ import * as ts from 'typescript';

import {
createRule,
getFunctionHeadLoc,
getParserServices,
isArrayMethodCallWithPredicate,
isFunction,
Expand Down Expand Up @@ -436,10 +437,25 @@ export default createRule<Options, MessageId>({
) &&
returnsThenable(checker, tsNode.initializer)
) {
context.report({
node: node.value,
messageId: 'voidReturnProperty',
});
if (isFunction(node.value)) {
const functionNode = node.value;
if (functionNode.returnType) {
context.report({
node: functionNode.returnType.typeAnnotation,
messageId: 'voidReturnProperty',
});
} else {
context.report({
loc: getFunctionHeadLoc(functionNode, context.sourceCode),
messageId: 'voidReturnProperty',
});
}
} else {
context.report({
node: node.value,
messageId: 'voidReturnProperty',
});
}
}
} else if (ts.isShorthandPropertyAssignment(tsNode)) {
const contextualType = checker.getContextualType(tsNode.name);
Expand Down Expand Up @@ -490,10 +506,19 @@ export default createRule<Options, MessageId>({
);

if (isVoidReturningFunctionType(checker, tsNode.name, contextualType)) {
context.report({
node: node.value,
messageId: 'voidReturnProperty',
});
const functionNode = node.value as TSESTree.FunctionExpression;

if (functionNode.returnType) {
context.report({
node: functionNode.returnType.typeAnnotation,
messageId: 'voidReturnProperty',
});
} else {
context.report({
loc: getFunctionHeadLoc(functionNode, context.sourceCode),
messageId: 'voidReturnProperty',
});
}
}
return;
}
Expand All @@ -513,6 +538,7 @@ export default createRule<Options, MessageId>({
}
return nullThrows(current, NullThrowsReasons.MissingParent);
})();

if (
functionNode.returnType &&
!isPossiblyFunctionType(functionNode.returnType)
Expand Down
149 changes: 148 additions & 1 deletion packages/eslint-plugin/tests/rules/no-misused-promises.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1405,6 +1405,9 @@ const obj: O = {
`,
errors: [
{
column: 3,
endColumn: 12,
endLine: 4,
line: 4,
messageId: 'voidReturnProperty',
},
Expand All @@ -1419,6 +1422,9 @@ const obj: O = {
`,
errors: [
{
column: 3,
endColumn: 12,
endLine: 4,
line: 4,
messageId: 'voidReturnProperty',
},
Expand Down Expand Up @@ -1451,6 +1457,9 @@ const obj: O = {
`,
errors: [
{
column: 3,
endColumn: 10,
endLine: 4,
line: 4,
messageId: 'voidReturnProperty',
},
Expand All @@ -1472,14 +1481,23 @@ function f(): O {
`,
errors: [
{
column: 5,
endColumn: 12,
endLine: 6,
line: 6,
messageId: 'voidReturnProperty',
},
{
column: 5,
endColumn: 14,
endLine: 9,
line: 9,
messageId: 'voidReturnProperty',
},
{
column: 5,
endColumn: 6,
endLine: 10,
line: 10,
messageId: 'voidReturnProperty',
},
Expand Down Expand Up @@ -1783,7 +1801,15 @@ const test: ReturnsRecord = () => {
return { asynchronous: async () => {} };
};
`,
errors: [{ line: 5, messageId: 'voidReturnProperty' }],
errors: [
{
column: 12,
endColumn: 32,
endLine: 5,
line: 5,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
Expand Down Expand Up @@ -2429,5 +2455,126 @@ arrayFn<() => void>(
},
],
},
{
code: `
type HasVoidMethod = {
f(): void;
};

const o: HasVoidMethod = {
async f() {
return 3;
},
};
`,
errors: [
{
column: 3,
endColumn: 10,
endLine: 7,
line: 7,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
type HasVoidMethod = {
f(): void;
};

const o: HasVoidMethod = {
async f(): Promise<number> {
return 3;
},
};
`,
errors: [
{
column: 14,
endColumn: 29,
endLine: 7,
line: 7,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
type HasVoidMethod = {
f(): void;
};
const obj: HasVoidMethod = {
f() {
return Promise.resolve('foo');
},
};
`,
errors: [
{
column: 3,
endColumn: 4,
endLine: 6,
line: 6,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
type HasVoidMethod = {
f(): void;
};
const obj: HasVoidMethod = {
f(): Promise<void> {
throw new Error();
},
};
`,
errors: [
{
column: 8,
endColumn: 21,
endLine: 6,
line: 6,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
type O = { f: () => void };
const asyncFunction = async () => 'foo';
const obj: O = {
f: asyncFunction,
};
`,
errors: [
{
column: 6,
endColumn: 19,
endLine: 5,
line: 5,
messageId: 'voidReturnProperty',
},
],
},
{
code: `
type O = { f: () => void };
const obj: O = {
f: async (): Promise<string> => 'foo',
};
`,
errors: [
{
column: 16,
endColumn: 31,
endLine: 4,
line: 4,
messageId: 'voidReturnProperty',
},
],
},
],
});
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