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Add explanatory comments, consolidate main body

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This commit is contained in:
uniqueiniquity 2017-08-14 09:27:45 -07:00
parent d6ccee6766
commit 760812f714
2 changed files with 15 additions and 11 deletions
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18
src/services/outliningElementsCollector.ts
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@ -3,11 +3,17 @@ namespace ts.OutliningElementsCollector {
export function collectElements(sourceFile: SourceFile, cancellationToken: CancellationToken): OutliningSpan[] {
const elements: OutliningSpan[] = [];
const collapseText = "...";
let depth = 0;
const maxDepth = 20;
function addOutliningSpan(hintSpanNode: Node, startElement: Node, endElement: Node, autoCollapse: boolean, fullStart: boolean) {
walk(sourceFile);
return elements;
// If useFullStart is true, then the collapsing span includes leading whitespace, including linebreaks.
function addOutliningSpan(hintSpanNode: Node, startElement: Node, endElement: Node, autoCollapse: boolean, useFullStart: boolean) {
if (hintSpanNode && startElement && endElement) {
const span: OutliningSpan = {
textSpan: createTextSpanFromBounds(fullStart ? startElement.pos : startElement.getStart(), endElement.end),
textSpan: createTextSpanFromBounds(useFullStart ? startElement.pos : startElement.getStart(), endElement.end),
hintSpan: createTextSpanFromBounds(startElement.getStart(), endElement.end),
bannerText: collapseText,
autoCollapse,
@ -82,8 +88,6 @@ namespace ts.OutliningElementsCollector {
return isFunctionBlock(node) && node.parent.kind !== SyntaxKind.ArrowFunction;
}
let depth = 0;
const maxDepth = 20;
function walk(n: Node): void {
cancellationToken.throwIfCancellationRequested();
if (depth > maxDepth) {
@ -163,6 +167,9 @@ namespace ts.OutliningElementsCollector {
addOutliningSpan(n, openBrace, closeBrace, autoCollapse(n), /* fullStart */ true);
break;
}
// If the block has no leading keywords and is a member of an array literal,
// we again want to only collapse the span of the block.
// Otherwise, the collapsed section will include the end of the previous line.
case SyntaxKind.ObjectLiteralExpression:
const openBrace = findChildOfKind(n, SyntaxKind.OpenBraceToken, sourceFile);
const closeBrace = findChildOfKind(n, SyntaxKind.CloseBraceToken, sourceFile);
@ -178,8 +185,5 @@ namespace ts.OutliningElementsCollector {
forEachChild(n, walk);
depth--;
}
walk(sourceFile);
return elements;
}
}

8
tests/cases/fourslash/getOutliningForObjectsInArray.ts
View file

@ -1,13 +1,13 @@
/// <reference path="fourslash.ts"/>
////// objects in x should generate outlining spans that do not render in VS
// objects in x should generate outlining spans that do not render in VS
//// const x =[| [
//// [|{ a: 0 }|],
//// [|{ b: 1 }|],
//// [|{ c: 2 }|]
//// ]|];
////
////// objects in y should generate outlining spans that render as expected
// objects in y should generate outlining spans that render as expected
//// const y =[| [
//// [|{
//// a: 0
@ -20,7 +20,7 @@
//// }|]
//// ]|];
////
////// same behavior for nested arrays
// same behavior for nested arrays
//// const w =[| [
//// [|[ 0 ]|],
//// [|[ 1 ]|],
@ -39,7 +39,7 @@
//// ]|]
//// ]|];
////
////// multiple levels of nesting work as expected
// multiple levels of nesting work as expected
//// const z =[| [
//// [|[
//// [|{ hello: 0 }|]