Will Hawkins
294f76acd4
There were significant overlaps in the names of data structures between the compiler and the language that made it necessary to litter the code with P4Lang.xxxx. This refactor removes that requirement in most places (Parser is ambiguous wherever TreeSitter is used -- cannot avoid that!) Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
125 lines
3.6 KiB
Swift
125 lines
3.6 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 Foundation
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import Macros
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import P4Lang
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import P4Runtime
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import SwiftTreeSitter
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import Testing
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import TreeSitter
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import TreeSitterP4
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@testable import P4Compiler
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public struct Return5: P4FFI {
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public func execute(execution: Common.ProgramExecution) -> (
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Common.ControlFlow, Common.ProgramExecution
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) {
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return (ControlFlow.Return(P4Value(P4IntValue(withValue: 5))), execution)
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}
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public func parameters() -> ParameterList {
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return ParameterList()
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}
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public func type() -> Common.P4QualifiedType {
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return P4QualifiedType(
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FunctionDeclaration(
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named: Identifier(name: "externally"), ofType: P4QualifiedType(P4Int()),
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withParameters: ParameterList(), withBody: .none?))
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}
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public init() {}
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}
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public struct Return6: P4FFI {
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public func execute(execution: Common.ProgramExecution) -> (
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Common.ControlFlow, Common.ProgramExecution
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) {
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return (ControlFlow.Return(P4Value(P4IntValue(withValue: 6))), execution)
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}
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public func parameters() -> ParameterList {
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return ParameterList()
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}
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public func type() -> Common.P4QualifiedType {
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return P4QualifiedType(
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FunctionDeclaration(
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named: Identifier(name: "externally"), ofType: P4QualifiedType(P4Int()),
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withParameters: ParameterList(), withBody: .none?))
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}
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public init() {}
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}
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@Test func test_extern_function_declaration() async throws {
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let simple_parser_declaration = """
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extern int externally();
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parser main_parser() {
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state start {
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int t = externally();
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transition select (t == 5) {
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true: accept;
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false: reject;
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};
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}
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};
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"""
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let externally = Return5()
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let program = try! #UseOkResult(
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SpecialCompilers.ProgramCompiler.Compile(
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simple_parser_declaration, withGlobalInstances: .none, withGlobalTypes: .none,
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withFFIs: [externally]))
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let runtime = try #UseOkResult(P4Runtime.Runtime<InstantiatedParserState, P4Lang.ParserValue>.create(program: program))
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let (state_result, _) = try! #UseOkResult(runtime.run())
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#expect(state_result == P4Lang.accept)
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}
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@Test func test_extern_function_declaration2() async throws {
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let simple_parser_declaration = """
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extern int externally();
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parser main_parser() {
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state start {
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int t = externally();
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transition select (t == 5) {
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true: accept;
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false: reject;
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};
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}
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};
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"""
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let externally = Return6()
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let program = try! #UseOkResult(
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SpecialCompilers.ProgramCompiler.Compile(
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simple_parser_declaration, withGlobalInstances: .none, withGlobalTypes: .none,
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withFFIs: [externally]))
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let runtime = try #UseOkResult(P4Runtime.Runtime<InstantiatedParserState, P4Lang.ParserValue>.create(program: program))
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let (state_result, _) = try! #UseOkResult(runtime.run())
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#expect(state_result == P4Lang.reject)
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}
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