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Refactor Type System

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Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
This commit is contained in:
Will Hawkins
2026-02-06 07:46:18 -05:00
parent bc700509c1
commit c3fdfb62e8
11 changed files with 395 additions and 199 deletions
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Sources/Runtime/Runtime.swift
+15 -9
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@@ -18,33 +18,39 @@
import Common
import Lang
/// The runtime for a parser
public class ParserRuntime: CustomStringConvertible {
var execution: ParserExecution
var execution: ParserInstance
init(execution: ParserExecution) {
init(execution: ParserInstance) {
self.execution = execution
}
public static func create(program: Lang.Parser) -> Result<ParserRuntime> {
switch ParserExecution.create(program) {
case .Ok(let execution): return .Ok(Runtime.ParserRuntime(execution: execution))
case .Error(let error): return .Error(error)
/// Create a parser runtime from a P4 program
public static func create(program: Lang.Program) -> Result<ParserRuntime> {
return switch program.starting_parser() {
case .Ok(let parser):
switch ParserInstance.create(parser) {
case .Ok(let execution): .Ok(Runtime.ParserRuntime(execution: execution))
case .Error(let error): .Error(error)
}
case .Error(let error): .Error(error)
}
}
/// Run the P4 parser on a given packet
public func run(input: Packet) -> Result<(ParserState, ProgramExecution)> {
execution.scopes.enter()
return .Ok(execution.execute())
}
public var description: String {
//return "\(super.description)\nState: \(execution?.description ?? "N/A")\nError: \(error?.description ?? "None")"
return "Runtime:\nExecution: \(execution)"
}
}
extension ParserExecution: Execution {
/// Instances of parsers are executable
extension ParserInstance: Execution {
public func execute() -> (ParserState, ProgramExecution) {
var execution = self as ProgramExecution
var state = self.state