Will Hawkins
58 lines
1.7 KiB
Swift
58 lines
1.7 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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import Common
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import SwiftTreeSitter
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import TreeSitterExtensions
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import TreeSitterP4
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let p4lang = Language(tree_sitter_p4())
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public func ConfigureP4Parser() -> Result<SwiftTreeSitter.Parser> {
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let p = SwiftTreeSitter.Parser.init()
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do {
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try p.setLanguage(p4lang)
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} catch {
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return Result.Error(Error(withMessage: "Could not configure the P4 parser"))
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}
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return .Ok(p)
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}
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public func compile(_ s: String) -> Result<CST.Program> {
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let maybe_parser = ConfigureP4Parser()
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guard case .Ok(let p) = maybe_parser else {
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return .Error(maybe_parser.error()!)
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}
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let result = p.parse(s)
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guard let tree = result,
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!tree.isError(lang: p4lang),
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!tree.containsMissing(lang: p4lang)
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else {
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return Result.Error(Error(withMessage: "Could not parse the P4 program"))
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}
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guard let root = tree.rootNode else {
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return Result.Error(Error(withMessage: "No P4 program compiled"))
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}
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let compilation_context = CSTCompilerContext()
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return CST.Program.Parse(node: root, withContext: compilation_context)
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}
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