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Clarify CSSUnparsedValue and CSSVariableReferenceValue. #676

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merged 2 commits into from
Feb 16, 2018
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Clarify CSSUnparsedValue and CSSVariableReferenceValue. #676

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0dee6b0
Clarify CSSUnparsedValue.length
darrnshn Feb 15, 2018
aa7b375
Clarify CSSUnparsedValue a bit more
darrnshn Feb 16, 2018
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13 changes: 11 additions & 2 deletions css-typed-om/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -652,11 +652,20 @@ They have a <dfn attribute for=CSSUnparsedValue>\[[tokens]]</dfn> internal slot,
which is a [=list=] of {{DOMString}}s and {{CSSVariableReferenceValue}} objects.
This list is the object's [=values to iterate over=].

The <dfn attribute for=CSSUnparsedValue>length</dfn> attribute indicates how many string fragments and variable references are contained within the {{CSSUnparsedValue}}.
The <dfn attribute for=CSSUnparsedValue>length</dfn> attribute returns the length
of the <dfn attribute for=CSSUnparsedValue>[[tokens]]</dfn> internal slot.

The <dfn for=CSSUnparsedValue>indexed getter</dfn> retrieves the string fragment or variable reference at the provided index.
The <dfn for=CSSUnparsedValue>indexed getter</dfn> retrieves the {{CSSUnparsedSegment}}
from [[tokens]] at the provided index.

The <dfn for=CSSUnparsedValue>indexed setter</dfn> sets the CSSUnparsedSegment
from [[tokens]] at the provided index to the provided {{CSSUnparsedValue}}.

<div algorithm="CSSVariableReferenceValue.variable">
The getter for the <dfn attribute for=CSSVariableReferenceValue>variable</dfn> attribute
of a {{CSSVariableReferenceValue}} |this|
must return its {{CSSVariableReferenceValue/variable}} internal slot.

The <dfn attribute for=CSSVariableReferenceValue>variable</dfn> attribute
of a {{CSSVariableReferenceValue}} |this| must, on setting a
variable |variable|, perform the following steps:
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