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author | Minteck <contact@minteck.org> | 2023-01-10 14:54:04 +0100 |
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committer | Minteck <contact@minteck.org> | 2023-01-10 14:54:04 +0100 |
commit | 99c1d9af689e5325f3cf535c4007b3aeb8325229 (patch) | |
tree | e663b3c2ebdbd67c818ac0c5147f0ce1d2463cda /school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs | |
parent | 9871b03912fc28ad38b4037ebf26a78aa937baba (diff) | |
download | pluralconnect-99c1d9af689e5325f3cf535c4007b3aeb8325229.tar.gz pluralconnect-99c1d9af689e5325f3cf535c4007b3aeb8325229.tar.bz2 pluralconnect-99c1d9af689e5325f3cf535c4007b3aeb8325229.zip |
Update - This is an automated commit
Diffstat (limited to 'school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs')
-rw-r--r-- | school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs b/school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs new file mode 100644 index 0000000..a0a0758 --- /dev/null +++ b/school/node_modules/graphql/utilities/stripIgnoredCharacters.mjs @@ -0,0 +1,113 @@ +import { Source, isSource } from "../language/source.mjs"; +import { TokenKind } from "../language/tokenKind.mjs"; +import { Lexer, isPunctuatorTokenKind } from "../language/lexer.mjs"; +import { dedentBlockStringValue, getBlockStringIndentation } from "../language/blockString.mjs"; +/** + * Strips characters that are not significant to the validity or execution + * of a GraphQL document: + * - UnicodeBOM + * - WhiteSpace + * - LineTerminator + * - Comment + * - Comma + * - BlockString indentation + * + * Note: It is required to have a delimiter character between neighboring + * non-punctuator tokens and this function always uses single space as delimiter. + * + * It is guaranteed that both input and output documents if parsed would result + * in the exact same AST except for nodes location. + * + * Warning: It is guaranteed that this function will always produce stable results. + * However, it's not guaranteed that it will stay the same between different + * releases due to bugfixes or changes in the GraphQL specification. + * + * Query example: + * + * query SomeQuery($foo: String!, $bar: String) { + * someField(foo: $foo, bar: $bar) { + * a + * b { + * c + * d + * } + * } + * } + * + * Becomes: + * + * query SomeQuery($foo:String!$bar:String){someField(foo:$foo bar:$bar){a b{c d}}} + * + * SDL example: + * + * """ + * Type description + * """ + * type Foo { + * """ + * Field description + * """ + * bar: String + * } + * + * Becomes: + * + * """Type description""" type Foo{"""Field description""" bar:String} + */ + +export function stripIgnoredCharacters(source) { + var sourceObj = isSource(source) ? source : new Source(source); + var body = sourceObj.body; + var lexer = new Lexer(sourceObj); + var strippedBody = ''; + var wasLastAddedTokenNonPunctuator = false; + + while (lexer.advance().kind !== TokenKind.EOF) { + var currentToken = lexer.token; + var tokenKind = currentToken.kind; + /** + * Every two non-punctuator tokens should have space between them. + * Also prevent case of non-punctuator token following by spread resulting + * in invalid token (e.g. `1...` is invalid Float token). + */ + + var isNonPunctuator = !isPunctuatorTokenKind(currentToken.kind); + + if (wasLastAddedTokenNonPunctuator) { + if (isNonPunctuator || currentToken.kind === TokenKind.SPREAD) { + strippedBody += ' '; + } + } + + var tokenBody = body.slice(currentToken.start, currentToken.end); + + if (tokenKind === TokenKind.BLOCK_STRING) { + strippedBody += dedentBlockString(tokenBody); + } else { + strippedBody += tokenBody; + } + + wasLastAddedTokenNonPunctuator = isNonPunctuator; + } + + return strippedBody; +} + +function dedentBlockString(blockStr) { + // skip leading and trailing triple quotations + var rawStr = blockStr.slice(3, -3); + var body = dedentBlockStringValue(rawStr); + + if (getBlockStringIndentation(body) > 0) { + body = '\n' + body; + } + + var lastChar = body[body.length - 1]; + var hasTrailingQuote = lastChar === '"' && body.slice(-4) !== '\\"""'; + + if (hasTrailingQuote || lastChar === '\\') { + body += '\n'; + } + + return '"""' + body + '"""'; +} |