Will Hawkins
61d8f601e8
In P4, parsers are considered types. Those parsers are instantiated. The instantiated parsers are values. Previously, gp4 treated a parser type and a parser value as identical. This PR makes that difference clear _and_ sets the stage for the future. TODO: Make the same distinction between control and action types and values. Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
83 lines
2.4 KiB
Swift
83 lines
2.4 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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@Test func test_simple_parser_with_conditional_statement() async throws {
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let simple_parser_declaration = """
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parser main_parser() {
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state start {
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bool x = true;
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string check = "Invalid";
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if (x) {
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x = false;
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check = "valid";
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}
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transition select (x) {
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false: reject;
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true: accept;
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};
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}
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};
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"""
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let program = try #UseOkResult(Program.Compile(simple_parser_declaration))
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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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@Test func test_simple_parser_with_conditional_statement_and_else() async throws {
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let simple_parser_declaration = """
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parser main_parser() {
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state start {
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bool x = false;
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string check = "Invalid";
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if (x) {
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x = false;
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check = "a";
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} else {
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x = true;
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check = "b";
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}
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transition select (x) {
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false: reject;
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true: accept;
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};
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}
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};
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"""
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let program = try #UseOkResult(Program.Compile(simple_parser_declaration))
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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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