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fix(eslint-plugin): [space-infix-ops] support for optional property without type #5155

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merged 4 commits into from Jun 8, 2022
Merged

fix(eslint-plugin): [space-infix-ops] support for optional property without type #5155

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3bbe0c1
fix(eslint-plugin): [space-infix-ops] add missing handling for option…
armano2 Jun 6, 2022
d1cc86a
fix(eslint-plugin): [space-infix-ops] simplify code and add more test…
armano2 Jun 6, 2022
b09c698
fix(eslint-plugin): [space-infix-ops] report correct node to reduce a…
armano2 Jun 6, 2022
47e7a2b
fix(eslint-plugin): [space-infix-ops] correct test result
armano2 Jun 6, 2022
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23 changes: 12 additions & 11 deletions packages/eslint-plugin/src/rules/space-infix-ops.ts
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Expand Up @@ -69,17 +69,16 @@ export default util.createRule<Options, MessageIds>({

function isSpaceChar(token: TSESTree.Token): boolean {
return (
token.type === AST_TOKEN_TYPES.Punctuator &&
/^[=|?|:]$/.test(token.value)
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this regexp was not correct, it should be, /^[=?:]$/ or /^(=|?|:)$/

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This is a pretty common mistake in regexes!
Probably deserves its own lint rule!

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I recommend this plugin, if you have a lot of non-trivial regexps to lint

token.type === AST_TOKEN_TYPES.Punctuator && /^[=?:]$/.test(token.value)
);
}

function checkAndReportAssignmentSpace(
node: TSESTree.Node,
leftNode: TSESTree.Token,
leftNode: TSESTree.Token | null,
rightNode?: TSESTree.Token | null,
): void {
if (!rightNode) {
if (!rightNode || !leftNode) {
return;
}

Expand Down Expand Up @@ -109,7 +108,7 @@ export default util.createRule<Options, MessageIds>({
return;
}

const leftNode = sourceCode.getTokenByRangeStart(node.id.range[0])!;
const leftNode = sourceCode.getTokenByRangeStart(node.id.range[0]);
const rightNode = sourceCode.getTokenByRangeStart(
node.initializer.range[0],
)!;
Expand All @@ -124,9 +123,11 @@ export default util.createRule<Options, MessageIds>({
function checkForPropertyDefinitionAssignmentSpace(
node: TSESTree.PropertyDefinition,
): void {
const leftNode = sourceCode.getLastToken(
node.typeAnnotation ?? node.key,
)!;
const leftNode =
node.optional && !node.typeAnnotation
? sourceCode.getTokenAfter(node.key)
: sourceCode.getLastToken(node.typeAnnotation ?? node.key);
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isSpaceChar is allowing ? as token, than we have to skip it,


const rightNode = node.value
? sourceCode.getTokenByRangeStart(node.value.range[0])
: undefined;
Expand Down Expand Up @@ -174,16 +175,16 @@ export default util.createRule<Options, MessageIds>({
function checkForTypeAliasAssignment(
node: TSESTree.TSTypeAliasDeclaration,
): void {
const leftNode = sourceCode.getLastToken(node.typeParameters ?? node.id)!;
const leftNode = sourceCode.getLastToken(node.typeParameters ?? node.id);
const rightNode = sourceCode.getFirstToken(node.typeAnnotation);

checkAndReportAssignmentSpace(node, leftNode, rightNode);
}

function checkForTypeConditional(node: TSESTree.TSConditionalType): void {
const extendsLastToken = sourceCode.getLastToken(node.extendsType)!;
const trueFirstToken = sourceCode.getFirstToken(node.trueType)!;
const trueLastToken = sourceCode.getLastToken(node.trueType)!;
const trueFirstToken = sourceCode.getFirstToken(node.trueType);
const trueLastToken = sourceCode.getLastToken(node.trueType);
const falseFirstToken = sourceCode.getFirstToken(node.falseType)!;

checkAndReportAssignmentSpace(node, extendsLastToken, trueFirstToken);
Expand Down
40 changes: 33 additions & 7 deletions packages/eslint-plugin/tests/rules/space-infix-ops.test.ts
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Expand Up @@ -165,6 +165,20 @@ ruleTester.run('space-infix-ops', rule, {
}
`,
},
{
code: `
class Test {
value: string & number;
}
`,
},
{
code: `
class Test {
optional? = false;
}
`,
},
{
code: `
type Test =
Expand Down Expand Up @@ -379,13 +393,6 @@ ruleTester.run('space-infix-ops', rule, {
const x: string & (((() => void)));
`,
},
{
code: `
class Test {
value: string & number;
}
`,
},
{
code: `
function foo<T extends string & number>() {}
Expand Down Expand Up @@ -1861,6 +1868,25 @@ ruleTester.run('space-infix-ops', rule, {
},
],
},
{
code: `
class Test {
optional?= false;
}
`,
output: `
class Test {
optional? = false;
}
`,
errors: [
{
messageId: 'missingSpace',
column: 20,
line: 3,
},
],
},
{
code: `
function foo<T extends string &number>() {}
Expand Down