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Add explanation about argument name uniqueness. #891

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merged 2 commits into from Feb 2, 2023
Merged

Add explanation about argument name uniqueness. #891

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5350f28
add explanation about argument name uniqueness.
dugenkui03 Oct 7, 2021
10bb59a
Merge branch 'main' into moreDetailAboutArgumentNameUniquess
benjie Jan 20, 2023
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14 changes: 10 additions & 4 deletions spec/Section 3 -- Type System.md
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Expand Up @@ -878,9 +878,11 @@ of rules must be adhered to by every Object type in a GraphQL schema.
4. For each argument of the field:
1. The argument must not have a name which begins with the characters
{"\_\_"} (two underscores).
2. The argument must accept a type where {IsInputType(argumentType)}
2. The argument must have a unique name within that field; no two
arguments may share the same name.
3. The argument must accept a type where {IsInputType(argumentType)}
returns {true}.
3. If argument type is Non-Null and a default value is not defined:
4. If argument type is Non-Null and a default value is not defined:
- The `@deprecated` directive must not be applied to this argument.
3. An object type may declare that it implements one or more unique interfaces.
4. An object type must be a super-set of all interfaces it implements:
Expand Down Expand Up @@ -1228,7 +1230,9 @@ Interface types have the potential to be invalid if incorrectly defined.
4. For each argument of the field:
1. The argument must not have a name which begins with the characters
{"\_\_"} (two underscores).
2. The argument must accept a type where {IsInputType(argumentType)}
2. The argument must have a unique name within that field; no two
arguments may share the same name.
3. The argument must accept a type where {IsInputType(argumentType)}
returns {true}.
3. An interface type may declare that it implements one or more unique
interfaces, but may not implement itself.
Expand Down Expand Up @@ -2004,7 +2008,9 @@ repeatable directives.
4. For each argument of the directive:
1. The argument must not have a name which begins with the characters
{"\_\_"} (two underscores).
2. The argument must accept a type where {IsInputType(argumentType)} returns
2. The argument must have a unique name within that directive; no two
arguments may share the same name.
3. The argument must accept a type where {IsInputType(argumentType)} returns
{true}.

### @skip
Expand Down