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Add ConstString initializer to ArrayType #105

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Merged
merged 3 commits into from
Sep 19, 2017
Merged

Add ConstString initializer to ArrayType #105

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0fd7334
Add ConstString initializer to ArrayType
vdka Sep 19, 2017
df3e945
Update comment to mention use of utf8 bytes
vdka Sep 19, 2017
a8ce52a
Update ArrayType.swift
vdka Sep 19, 2017
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13 changes: 13 additions & 0 deletions Sources/LLVM/ArrayType.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,19 @@ public struct ArrayType: IRType {
}
}

/// Creates a constant, null terminated array value of UTF-8 bytes from
/// string's `utf8` member.
///
/// - parameter string: A string to create a null terminated array from.
/// - parameter context: The context to create the string in.
///
/// - returns: A null terminated constant array value containing
/// `string.utf8.count + 1` i8's.
public static func constant(string: String, in context: Context = .global) -> IRValue {
let length = string.utf8.count
return LLVMConstStringInContext(context.llvm, string, UInt32(length), 0)
}

/// Retrieves the underlying LLVM type object.
public func asLLVM() -> LLVMTypeRef {
return LLVMArrayType(elementType.asLLVM(), UInt32(count))
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