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Simplify helpers

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This commit is contained in:
Mohamed Hegazy
2017-02-16 22:53:41 -08:00
parent 8a5bebe4de
commit 0eec41ee63
2 changed files with 9 additions and 10 deletions
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2
src/compiler/transformers/destructuring.ts
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@@ -42,7 +42,7 @@ namespace ts {
let value: Expression;
if (isDestructuringAssignment(node)) {
value = node.right;
while (isEmptyObjectLiteralOrArrayLiteral(node.left)) {
while (isEmptyArrayLiteral(node.left) || isEmptyObjectLiteral(node.left)) {
if (isDestructuringAssignment(value)) {
location = node = value;
value = node.right;

17
src/compiler/utilities.ts
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@@ -3093,15 +3093,14 @@ namespace ts {
(node.parent.kind === SyntaxKind.PropertyAccessExpression && (<PropertyAccessExpression>node.parent).name === node);
}
export function isEmptyObjectLiteralOrArrayLiteral(expression: Node): boolean {
const kind = expression.kind;
if (kind === SyntaxKind.ObjectLiteralExpression) {
return (<ObjectLiteralExpression>expression).properties.length === 0;
}
if (kind === SyntaxKind.ArrayLiteralExpression) {
return (<ArrayLiteralExpression>expression).elements.length === 0;
}
return false;
export function isEmptyObjectLiteral(expression: Node): boolean {
return expression.kind === SyntaxKind.ObjectLiteralExpression &&
(<ObjectLiteralExpression>expression).properties.length === 0;
}
export function isEmptyArrayLiteral(expression: Node): boolean {
return expression.kind === SyntaxKind.ArrayLiteralExpression &&
(<ArrayLiteralExpression>expression).elements.length === 0;
}
export function getLocalSymbolForExportDefault(symbol: Symbol) {