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/*
* Copyright (C) 2023 Carlos Maniero
*
* This program 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/>.
*/
#define MUNIT_ENABLE_ASSERT_ALIASES
#include "munit.h"
#include "lexer.h"
#include "parser.h"
#include "ast.h"
#include "string.h"
void assert_string_view_equal(char *expected, string_view_t actual);
void
make_lexer_from_static_src(lexer_t *lexer, char *src)
{
lexer->filepath = "test.pipa";
lexer->srclen = 0;
lexer->cur = 0;
lexer->row = 0;
lexer->bol = 0;
lexer->src = src;
lexer->srclen = strlen(src);
}
void
assert_parser_error(char* src, char* error_msg) {
parser_t parser;
lexer_t lexer;
make_lexer_from_static_src(&lexer, src);
parser_init(&parser, &lexer);
ast_node_t *ast_function = ast_node_new();
bool parsed = parser_parse_function_declaration(&parser, ast_function);
assert_false(parsed);
assert_int(1, ==, parser.errors_len);
assert_string_equal(error_msg, parser.errors[0].message);
}
static MunitResult
test_parse_function(const MunitParameter params[],
void *user_data_or_fixture)
{
parser_t parser;
lexer_t lexer;
make_lexer_from_static_src(&lexer, "main(): i32 { \nreturn 42;\n }");
parser_init(&parser, &lexer);
ast_node_t *ast_function = ast_node_new();
bool parsed = parser_parse_function_declaration(&parser, ast_function);
assert_true(parsed);
char actual[5];
string_view_to_str(&ast_function->data.function.name, actual);
assert_string_equal("main", actual);
assert_int(AST_FUNCTION_DECLARATION, ==, ast_function->kind);
ast_node_t *ast_return = ast_function->data.function.body;
assert_int(AST_RETURN_STMT, ==, ast_return->kind);
ast_node_t *ast_literal = ast_return->data.return_stmt.argument;
assert_int(AST_LITERAL, ==, ast_literal->kind);
assert_int(42, ==, ast_literal->data.literal.value.integer);
ast_node_destroy(ast_function);
return MUNIT_OK;
}
static MunitResult
test_parse_arithmetic_expression(const MunitParameter params[],
void *user_data_or_fixture)
{
parser_t parser;
lexer_t lexer;
make_lexer_from_static_src(&lexer, "1 + 3 * 3 / 2 - 1");
parser_init(&parser, &lexer);
ast_node_t *ast_expression = ast_node_new();
bool parsed = parser_parse_expression(&parser, ast_expression);
assert_true(parsed);
ast_node_t *exp1 = ast_expression;
{
assert_int(AST_BINARY_OPERATION, ==, exp1->kind);
assert_string_view_equal("-", exp1->data.binary_operation.op);
ast_node_t *exp2 = exp1->data.binary_operation.left;
{
assert_int(AST_BINARY_OPERATION, ==, exp2->kind);
assert_string_view_equal("+", exp2->data.binary_operation.op);
assert_int(AST_LITERAL, ==, exp2->data.binary_operation.left->kind);
assert_int(exp2->data.binary_operation.left->data.literal.value.integer, ==, 1);
ast_node_t *exp3 = exp2->data.binary_operation.right;
{
assert_int(AST_BINARY_OPERATION, ==, exp3->kind);
assert_string_view_equal("/", exp3->data.binary_operation.op);
ast_node_t *exp4 = exp3->data.binary_operation.left;
{
assert_int(AST_BINARY_OPERATION, ==, exp4->kind);
assert_string_view_equal("*", exp4->data.binary_operation.op);
assert_int(AST_LITERAL, ==, exp4->data.binary_operation.left->kind);
assert_int(exp4->data.binary_operation.left->data.literal.value.integer, ==, 3);
assert_int(AST_LITERAL, ==, exp4->data.binary_operation.right->kind);
assert_int(exp4->data.binary_operation.right->data.literal.value.integer, ==, 3);
}
assert_int(AST_LITERAL, ==, exp3->data.binary_operation.right->kind);
assert_int(exp3->data.binary_operation.right->data.literal.value.integer, ==, 2);
}
}
assert_int(AST_LITERAL, ==, exp1->data.binary_operation.right->kind);
assert_int(exp1->data.binary_operation.right->data.literal.value.integer, ==, 1);
}
ast_node_destroy(ast_expression);
return MUNIT_OK;
}
void assert_string_view_equal(char *expected, string_view_t actual)
{
size_t expected_len = strlen(expected);
assert_int(expected_len, ==, actual.size);
assert_memory_equal(expected_len, expected, actual.str);
}
static MunitResult
test_parse_basic_syntax_errors(const MunitParameter params[],
void *user_data_or_fixture)
{
assert_parser_error("(): i32 { return 42; }" , "expected 'TOKEN_NAME' but got '('");
assert_parser_error("main): i32 { return 42; }" , "expected '(' but got ')'");
assert_parser_error("main(: i32 { return 42; }" , "expected ')' but got ':'");
assert_parser_error("main() i32 { return 42; }" , "expected ':' but got 'TOKEN_NAME'");
assert_parser_error("main(): { return 42; }" , "expected 'TOKEN_NAME' but got '{'");
assert_parser_error("main(): i32 return 42; }" , "expected '{' but got 'TOKEN_NAME'");
assert_parser_error("main(): i32 { 42; }" , "expected 'TOKEN_NAME' but got 'TOKEN_NUMBER'");
assert_parser_error("main(): i32 { return; }" , "unexpected '; (;)' token");
assert_parser_error("main(): i32 { return 42;" , "expected '}' but got end of file");
assert_parser_error("main(): beff { return 42; }" , "type 'beff' is not defined");
assert_parser_error("main(): i32 { oxi 42; }" , "expected 'return' keyword but got 'oxi'");
return MUNIT_OK;
}
static MunitTest tests[] = {
{ "/test_parse_function", test_parse_function, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_parse_basic_syntax_errors", test_parse_basic_syntax_errors, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_parse_arithmetic_expression", test_parse_arithmetic_expression, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
};
static const MunitSuite suite = {
"/parser", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE
};
int
main(int argc, char *argv[])
{
return munit_suite_main(&suite, NULL, argc, argv);
return EXIT_SUCCESS;
}
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