Will Hawkins
111 lines
3.3 KiB
Swift
111 lines
3.3 KiB
Swift
// p4rse, Copyright 2026, Will Hawkins
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//
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// This file is part of p4rse.
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//
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// This file is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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public struct SourceLocation: Equatable, CustomStringConvertible {
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public let start: Int
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public let extent: Int
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public init(_ start: Int, _ extent: Int) {
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self.start = start
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self.extent = extent
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}
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public var description: String {
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return "{\(self.start), \(self.extent)}"
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}
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}
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public enum DebugLevel {
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case Trace
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case Verbose
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case Debug
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case Error
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func value() -> UInt8 {
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return switch self {
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case DebugLevel.Trace: 3
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case DebugLevel.Verbose: 2
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case DebugLevel.Debug: 1
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case DebugLevel.Error: 0
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}
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}
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public func isTrace() -> Bool {
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if self.value() >= DebugLevel.Trace.value() {
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return true
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}
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return false
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}
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public func isVerbose() -> Bool {
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if self.value() >= DebugLevel.Verbose.value() {
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return true
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}
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return false
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}
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public func isDebug() -> Bool {
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if self.value() >= DebugLevel.Debug.value() {
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return true
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}
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return false
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}
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public func isError() -> Bool {
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return true
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}
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public var description: String {
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return switch self {
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case DebugLevel.Trace: "Trace"
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case DebugLevel.Verbose: "Verbose"
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case DebugLevel.Debug: "Debug"
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case DebugLevel.Error: "Error"
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}
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}
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}
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public struct Nothing: CustomStringConvertible {
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public var description: String {
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return "Nothing"
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}
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public init() {}
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}
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public func Map<T, U>(input: T, block: (T) -> U) -> U {
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return block(input)
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}
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@freestanding(expression) public macro RequireOkResult<T>(_: Result<T>) -> Bool =
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#externalMacro(module: "Macros", type: "RequireResult")
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@freestanding(expression) public macro RequireErrorResult<T>(_: any Errorable, _: Result<T>) -> Bool =
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#externalMacro(module: "Macros", type: "RequireErrorResult")
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@freestanding(expression) public macro UseOkResult<T>(_: Result<T>) -> T =
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#externalMacro(module: "Macros", type: "UseOkResult")
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@freestanding(expression) public macro UseErrorResult<T>(_: Result<T>) -> any Errorable =
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#externalMacro(module: "Macros", type: "UseErrorResult")
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@freestanding(codeItem) public macro RequireNodeType<N, T>(
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node: N, type: String, nice_type_name: String
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) =
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#externalMacro(module: "Macros", type: "RequireNodeType")
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@freestanding(codeItem) public macro RequireNodesType<N, T>(
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nodes: N, type: [String], nice_type_names: [String]
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) =
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#externalMacro(module: "Macros", type: "RequireNodesType")
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@freestanding(codeItem) public macro SkipUnlessNodeType<N>(node: N, type: String) =
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#externalMacro(module: "Macros", type: "SkipUnlessNodeType")
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@freestanding(codeItem) public macro MustOr<E, N>(result: E, thing: E?, or: N) =
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#externalMacro(module: "Macros", type: "MustOr")
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