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Clarify current ResolveAbstractType algorithm #973

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Clarify current ResolveAbstractType algorithm #973

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a2d03d1
Clarify current ResolveAbstractType algorithm
yaacovCR Jul 28, 2022
77b927d
Update spec/Section 6 -- Execution.md
yaacovCR Jul 28, 2022
c15550f
correct mistaken argument names
yaacovCR Jul 28, 2022
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18 changes: 15 additions & 3 deletions spec/Section 6 -- Execution.md
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Expand Up @@ -734,9 +734,21 @@ the {objectValue}.

ResolveAbstractType(abstractType, objectValue):

- Return the result of calling the internal method provided by the type system
for determining the Object type of {abstractType} given the value
{objectValue}.
- Let {resolvedType} be the result of calling the internal method provided by
the type system for determining the Object type of {abstractType} given the
value {objectValue}.
- Assert {resolvedType} is an Object type.
- Assert {IsSubType(abstractType, resolvedType)}.
- Return {resolvedType}.

IsSubType(abstractType, objectType):

- If {abstractType} is an Interface type.
- If {objectType} implements {abstractType}, return {true}.
- Otherwise, return {false}.
- If {abstractType} is a Union type.
- If {objectType} is a member type of {abstractType}, return {true}.
- Otherwise, return {false}.

**Merging Selection Sets**

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