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Disallow mixing nullish coalescing with logical OR via early errors #38

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Disallow mixing nullish coalescing with logical OR via early errors #38

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Disallow mixing nullish coalescing with logical OR.
DanielRosenwasser Jul 10, 2019
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DanielRosenwasser Jul 10, 2019
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18 changes: 18 additions & 0 deletions spec.html
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Expand Up @@ -29,6 +29,24 @@ <h1>Syntax</h1>
</emu-grammar>
</emu-clause>

<emu-clause id="sec-binary-logical-operators-static-semantics-early-errors">
<h1>Static Semantics: Early Errors</h1>

<emu-grammar>LogicalORExpression : LogicalORExpression `||` LogicalANDExpression</emu-grammar>
<ul>
<li>
It is a Syntax Error if the derived |LogicalORExpression| on is <emu-grammar>LogicalORExpression : LogicalORExpression `??` LogicalANDExpression</emu-grammar>.
</li>
</ul>

<emu-grammar>LogicalORExpression : LogicalORExpression `??` LogicalANDExpression</emu-grammar>
<ul>
<li>
It is a Syntax Error if the derived |LogicalORExpression| on is <emu-grammar>LogicalORExpression : LogicalORExpression `||` LogicalANDExpression</emu-grammar>.
</li>
</ul>
</emu-clause>

<emu-clause id="sec-nullish-coalescing-evaluation">
<h1>Runtime Semantics: Evaluation</h1>

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