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Initial work on parsing.

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This commit is contained in:
Deukhoofd
2020-10-07 22:11:18 +02:00
parent f299d5183f
commit 2036f1ce43
10 changed files with 276 additions and 55 deletions
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77
tests/ParserTests/ClassTests.cpp Normal file
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#include "../../extern/doctest.hpp"
#include "../../src/Parser/Parser.hpp"
using namespace MalachScript;
TEST_CASE("Parse basic class without body") {
std::vector<Parser::LexToken*> vec = {
new Parser::LexTokenImpl<Parser::LexTokenKind::ClassKeyword>(TextSpan(0, 0)),
new Parser::IdentifierToken(TextSpan(0, 0), u8"foobar"),
new Parser::LexTokenImpl<Parser::LexTokenKind::SemicolonSymbol>(TextSpan(0, 0)),
new Parser::LexTokenImpl<Parser::LexTokenKind::EndOfFile>(TextSpan(0, 0)),
};
for (size_t i = 0; i < vec.size() - 1; i++) {
vec[i]->SetNext(vec[i + 1]);
}
Diagnostics::Diagnostics diags;
auto parser = Parser::Parser(u8"class without body", vec.front(), &diags);
auto* script = parser.Parse();
REQUIRE(diags.GetMessages().empty());
{
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
}
delete vec[0];
delete script;
}
#define PARSER_TEST(name, tokens, asserts) \
TEST_CASE(name) { \
std::vector<Parser::LexToken*> vec = { \
tokens, \
new Parser::LexTokenImpl<Parser::LexTokenKind::EndOfFile>(TextSpan(0, 0)), \
}; \
for (size_t i = 0; i < vec.size() - 1; i++) { \
vec[i]->SetNext(vec[i + 1]); \
} \
Diagnostics::Diagnostics diags; \
auto parser = Parser::Parser(u8"scriptname", vec.front(), &diags); \
auto* script = parser.Parse(); \
REQUIRE(diags.GetMessages().empty()); \
asserts; \
delete vec[0]; \
delete script; \
}
#define PARSER_TEST_TOKENS(...) __VA_ARGS__
PARSER_TEST("Parse basic class without body",
PARSER_TEST_TOKENS(new Parser::LexTokenImpl<Parser::LexTokenKind::ClassKeyword>(TextSpan(0, 0)),
new Parser::IdentifierToken(TextSpan(0, 0), u8"foobar"),
new Parser::LexTokenImpl<Parser::LexTokenKind::SemicolonSymbol>(TextSpan(0, 0))),
{
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
})
PARSER_TEST("Parse basic class without body with whitespaces",
PARSER_TEST_TOKENS(new Parser::LexTokenImpl<Parser::LexTokenKind::ClassKeyword>(TextSpan(0, 0)),
new Parser::LexTokenImpl<Parser::LexTokenKind::Whitespace>(TextSpan(0, 0)),
new Parser::IdentifierToken(TextSpan(0, 0), u8"foobar"),
new Parser::LexTokenImpl<Parser::LexTokenKind::Whitespace>(TextSpan(0, 0)),
new Parser::LexTokenImpl<Parser::LexTokenKind::SemicolonSymbol>(TextSpan(0, 0))),
{
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
})
PARSER_TEST(
"Parse basic class with empty body",
PARSER_TEST_TOKENS(new Parser::LexTokenImpl<Parser::LexTokenKind::ClassKeyword>(TextSpan(0, 0)),
new Parser::IdentifierToken(TextSpan(0, 0), u8"foobar"),
new Parser::LexTokenImpl<Parser::LexTokenKind::OpenCurlyParenthesisSymbol>(TextSpan(0, 0)),
new Parser::LexTokenImpl<Parser::LexTokenKind::CloseCurlyParenthesisSymbol>(TextSpan(0, 0))),
{
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
})

27
tests/ParserTests/ParserIntegrationTests.cpp Normal file
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#include "../../extern/doctest.hpp"
#include "../../src/Parser/Lexer/Lexer.hpp"
#include "../../src/Parser/Parser.hpp"
using namespace MalachScript;
#define PARSE_TEST(name, scriptText, asserts) \
TEST_CASE(name) { \
Diagnostics::Diagnostics diags; \
auto lexer = Parser::Lexer(name, scriptText, &diags); \
auto token = lexer.Lex(); \
auto parser = Parser::Parser(name, token, &diags); \
auto script = parser.Parse(); \
asserts; \
}
PARSE_TEST("Parse class without definition", "class foobar;", {
REQUIRE(diags.GetMessages().empty());
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
})
PARSE_TEST("Parse class with empty definition", "class foobar {}", {
REQUIRE(diags.GetMessages().empty());
REQUIRE(script->GetStatements().size() == 1);
REQUIRE(script->GetStatements()[0].get()->GetKind() == Parser::ParsedStatementKind::Class);
})