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Don't copy the source code if not necessary #289

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Merged
dduan merged 1 commit into from
Jan 1, 2026
Merged

Don't copy the source code if not necessary #289

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17 changes: 15 additions & 2 deletions Sources/TOMLDecoder/Parsing/TOMLDocument.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -10,14 +10,27 @@ struct TOMLDocument: Equatable, @unchecked Sendable {
let source: String

init(source: String, keyTransform: (@Sendable (String) -> String)?) throws(TOMLError) {
var source = source
var hasContinousStorage = false
var parser = Parser(keyTransform: keyTransform)

do {
try source.withUTF8 { try parser.parse(bytes: $0) }
try source.utf8.withContiguousStorageIfAvailable {
hasContinousStorage = true
try parser.parse(bytes: $0)
}
} catch {
throw error as! TOMLError
}

if !hasContinousStorage {
var source = source
do {
try source.withUTF8 { try parser.parse(bytes: $0) }
} catch {
throw error as! TOMLError
}
}

self.source = source
tables = parser.tables
arrays = parser.arrays
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