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Merge pull request #39109 from Kingwl/lambda_span

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Add outlining spans for call expression or arrow body
This commit is contained in:
Daniel Rosenwasser
2020-06-29 23:33:04 -07:00
committed by GitHub
parent 784396ce95 4d57d591d2
commit 619658bd44
6 changed files with 143 additions and 85 deletions
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25
src/services/outliningElementsCollector.ts
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@@ -227,6 +227,31 @@ namespace ts.OutliningElementsCollector {
return spanForTemplateLiteral(<TemplateExpression | NoSubstitutionTemplateLiteral>n);
case SyntaxKind.ArrayBindingPattern:
return spanForNode(n, /*autoCollapse*/ false, /*useFullStart*/ !isBindingElement(n.parent), SyntaxKind.OpenBracketToken);
case SyntaxKind.ArrowFunction:
return spanForArrowFunction(<ArrowFunction>n);
case SyntaxKind.CallExpression:
return spanForCallExpression(<CallExpression>n);
}
function spanForCallExpression(node: CallExpression): OutliningSpan | undefined {
if (!node.arguments.length) {
return undefined;
}
const openToken = findChildOfKind(node, SyntaxKind.OpenParenToken, sourceFile);
const closeToken = findChildOfKind(node, SyntaxKind.CloseParenToken, sourceFile);
if (!openToken || !closeToken || positionsAreOnSameLine(openToken.pos, closeToken.pos, sourceFile)) {
return undefined;
}
return spanBetweenTokens(openToken, closeToken, node, sourceFile, /*autoCollapse*/ false, /*useFullStart*/ true);
}
function spanForArrowFunction(node: ArrowFunction): OutliningSpan | undefined {
if (isBlock(node.body) || positionsAreOnSameLine(node.body.getFullStart(), node.body.getEnd(), sourceFile)) {
return undefined;
}
const textSpan = createTextSpanFromBounds(node.body.getFullStart(), node.body.getEnd());
return createOutliningSpan(textSpan, OutliningSpanKind.Code, createTextSpanFromNode(node));
}
function spanForJSXElement(node: JsxElement): OutliningSpan | undefined {