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grammar : support array references in json schema (#16792)

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* grammar : support array references in json schema

* Update json-schema-to-grammar.cpp

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>

* grammar : improve regex when naming ref derived rules

* grammar : replace non-conformant definitions array with anyOf test case

---------

Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
This commit is contained in:
Aldehir Rojas
2025-10-28 03:37:52 -05:00
committed by GitHub
parent 3479efd112
commit 280d97be96
4 changed files with 87 additions and 18 deletions
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56
tests/test-json-schema-to-grammar.cpp
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@@ -1124,9 +1124,9 @@ static void test_all(const std::string & lang, std::function<void(const TestCase
})""",
R"""(
char ::= [^"\\\x7F\x00-\x1F] | [\\] (["\\bfnrt] | "u" [0-9a-fA-F]{4})
foo ::= "{" space foo-a-kv "}" space
foo-a-kv ::= "\"a\"" space ":" space string
root ::= foo
ref-definitions-foo ::= "{" space ref-definitions-foo-a-kv "}" space
ref-definitions-foo-a-kv ::= "\"a\"" space ":" space string
root ::= ref-definitions-foo
space ::= | " " | "\n"{1,2} [ \t]{0,20}
string ::= "\"" char* "\"" space
)"""
@@ -1151,20 +1151,58 @@ static void test_all(const std::string & lang, std::function<void(const TestCase
"type": "object"
})""",
R"""(
alternative-0 ::= foo
alternative-1 ::= bar
bar ::= "{" space (bar-b-kv )? "}" space
bar-b-kv ::= "\"b\"" space ":" space number
alternative-0 ::= ref-definitions-foo
alternative-1 ::= ref-definitions-bar
decimal-part ::= [0-9]{1,16}
foo ::= "{" space (foo-a-kv )? "}" space
foo-a-kv ::= "\"a\"" space ":" space number
integral-part ::= [0] | [1-9] [0-9]{0,15}
number ::= ("-"? integral-part) ("." decimal-part)? ([eE] [-+]? integral-part)? space
ref-definitions-bar ::= "{" space (ref-definitions-bar-b-kv )? "}" space
ref-definitions-bar-b-kv ::= "\"b\"" space ":" space number
ref-definitions-foo ::= "{" space (ref-definitions-foo-a-kv )? "}" space
ref-definitions-foo-a-kv ::= "\"a\"" space ":" space number
root ::= alternative-0 | alternative-1
space ::= | " " | "\n"{1,2} [ \t]{0,20}
)"""
});
test({
SUCCESS,
"anyOf $ref",
R"""({
"properties": {
"a": {
"anyOf": [
{"type": "string"},
{"type": "number"}
]
},
"b": {
"anyOf": [
{"$ref": "#/properties/a/anyOf/0"},
{"type": "boolean"}
]
}
},
"type": "object"
})""",
R"""(
a ::= string | number
a-kv ::= "\"a\"" space ":" space a
a-rest ::= ( "," space b-kv )?
b ::= b-0 | boolean
b-0 ::= string
b-kv ::= "\"b\"" space ":" space b
boolean ::= ("true" | "false") space
char ::= [^"\\\x7F\x00-\x1F] | [\\] (["\\bfnrt] | "u" [0-9a-fA-F]{4})
decimal-part ::= [0-9]{1,16}
integral-part ::= [0] | [1-9] [0-9]{0,15}
number ::= ("-"? integral-part) ("." decimal-part)? ([eE] [-+]? integral-part)? space
root ::= "{" space (a-kv a-rest | b-kv )? "}" space
space ::= | " " | "\n"{1,2} [ \t]{0,20}
string ::= "\"" char* "\"" space
)"""
});
test({
SUCCESS,
"mix of allOf, anyOf and $ref (similar to https://json.schemastore.org/tsconfig.json)",