Files
gp4/Tests/p4rseTests/ParserTests.swift
T
Will Hawkins 2f7d05a3fd Refactor Compilation Interface
Compilation interface(s) now contain a compilation context.
The change will make it easier to expand on what each step
of the compilation process needs to know to complete its task
without having to make major changes to the interface.

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
2026-03-13 06:25:30 -04:00

119 lines
3.4 KiB
Swift

// p4rse, Copyright 2026, Will Hawkins
//
// This file is part of p4rse.
//
// This file is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
import Common
import Foundation
import Macros
import Runtime
import SwiftTreeSitter
import Testing
import TreeSitter
import TreeSitterP4
import P4Lang
@testable import P4Compiler
@Test func test_simple_parser_syntax_error() async throws {
let simple_parser_declaration = """
parser main_parser() {
state
transition start;
}
};
"""
#expect(
#RequireErrorResult(
Error(withMessage: "Could not compile the P4 program"),
Program.Compile(simple_parser_declaration)))
}
@Test func test_simple_parser_with_statement() async throws {
let simple_parser_declaration = """
parser main_parser() {
state start {
true;
transition start;
}
};
"""
let program = try #UseOkResult(Program.Compile(simple_parser_declaration))
let parser = try #UseOkResult(program.find_parser(withName: Identifier(name: "main_parser")))
#expect(parser.states.count() == 1)
let state = try! #require(parser.states.find(withIdentifier: Identifier(name: "start")))
#expect(state.state == Identifier(name: "start"))
#expect(state.statements.count == 1)
}
@Test func test_simple_parser_with_instantiation() async throws {
let simple_parser_declaration = """
parser main_parser() {
state start {
true;
false;
transition start;
}
};
bool() main;
"""
let program = try #UseOkResult(Program.Compile(simple_parser_declaration))
#expect(#RequireOkResult(program.find_parser(withName: Identifier(name: "main_parser"))))
}
@Test func test_invalid_transition_expression_keyset_expressions() async throws {
let simple_parser_declaration = """
parser main_parser() {
state start {
transition select (false) {
asdf: reject;
asde: reject;
};
}
};
"""
let compilation_error = try #UseErrorResult(Program.Compile(simple_parser_declaration))
#expect(compilation_error.msg.contains("asde"))
#expect(compilation_error.msg.contains("asdf"))
}
@Test func test_simple_parser_macro_nodetype_test() async throws {
let simple = """
parser main_parser() {
state start {
transition select (false) {
asdf: reject;
asde: reject;
};
}
};
"""
let p = try! #UseOkResult(ConfigureP4Parser())
let result = try! #require(p.parse(simple))
#expect(
#RequireErrorResult<(EvaluatableStatement, CompilerContext)>(
Error(withMessage: "{2, 154}: Did not find assignment statement"),
ParserAssignmentStatement.Compile(
node: result.rootNode!, withContext: CompilerContext(withNames: LexicalScopes()))))
}