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>
116 lines
4.0 KiB
Swift
116 lines
4.0 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 P4Runtime
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import P4Lang
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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_statement_interloper() async throws {
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let simple_parser_declaration = """
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parser main_parser() {
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state starts {
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bool where_to = false;
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int va = 5;
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transition accept;
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}
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state start {
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bool where_to = true;
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where_to = true;
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transition select (where_to) {
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false: reject;
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true: starts;
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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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var statements_executed: [String] = Array()
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let ev = InterloperEvaluator().setStatementInterloper() { (statement, cf, execution) in
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statements_executed.append("\(statement)")
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}
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let (state_result, _) = try! #UseOkResult(runtime.run(withArguments: ArgumentList(), inExecution: ProgramExecution(ev)))
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#expect(state_result == P4Lang.accept)
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print("statements_executed: \(statements_executed)")
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#expect(statements_executed[0].hasPrefix("VariableDeclarationStatement"))
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#expect(statements_executed[1].hasPrefix("ParserAssignmentStatement"))
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// Moved into starts
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#expect(statements_executed[2].hasPrefix("VariableDeclarationStatement"))
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#expect(statements_executed[3].hasPrefix("VariableDeclarationStatement"))
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}
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@Test func test_expression_interloper() async throws {
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let simple_parser_declaration = """
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parser main_parser() {
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state starts {
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bool where_to = false;
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int va = 5;
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transition accept;
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}
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state start {
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bool where_to = true;
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where_to = true;
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transition select (where_to) {
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false: reject;
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true: starts;
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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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var expressions_evaluated: [String] = Array()
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let ev = InterloperEvaluator().setExpressionInterloper() { expression, result, execution in
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expressions_evaluated.append("\(expression)")
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}
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let (state_result, _) = try! #UseOkResult(runtime.run(withArguments: ArgumentList(), inExecution: ProgramExecution(ev)))
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#expect(state_result == P4Lang.accept)
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#expect(expressions_evaluated[0].hasPrefix("Value: true of Boolean"))
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#expect(expressions_evaluated[1].hasPrefix("Value: true of Boolean"))
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#expect(expressions_evaluated[2].hasPrefix("where_to"))
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#expect(expressions_evaluated[3].hasPrefix("Value: false of Boolean"))
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#expect(expressions_evaluated[4].hasPrefix("KeysetExpression"))
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#expect(expressions_evaluated[5].hasPrefix("Value: true of Boolean"))
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#expect(expressions_evaluated[6].hasPrefix("KeysetExpression"))
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#expect(expressions_evaluated[7].hasPrefix("SelectCaseExpression"))
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#expect(expressions_evaluated[8].hasPrefix("SelectExpression"))
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// Moved into starts
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#expect(expressions_evaluated[9].hasPrefix("Value: false of Boolean"))
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#expect(expressions_evaluated[10].hasPrefix("Value: 5 of Int"))
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}
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