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Implement token pasting

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This commit is contained in:
Jan
2023-12-30 20:03:35 +01:00
parent eece5bb91d
commit e090e112e6
3 changed files with 240 additions and 18 deletions
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60
test/ParserTests/Parsing/Impl/DefinesStreamProxyTests.cpp
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@ -1001,12 +1001,46 @@ namespace test::parsing::impl::defines_stream_proxy
REQUIRE(proxy.Eof());
}
TEST_CASE("DefinesStreamProxy: Token-pasting operator ignores whitespace", "[parsing][parsingstream]")
TEST_CASE("DefinesStreamProxy: Can token-join symbols", "[parsing][parsingstream]")
{
const std::vector<std::string> lines{
"#define glue(a, b) a ## b",
"glue(\"Hello\", \"World\")",
"testMacro(Hello, 5)",
"#define GLUE(a, b) a ## b",
"GLUE(+, =)",
};
MockParserLineStream mockStream(lines);
DefinesStreamProxy proxy(&mockStream);
ExpectLine(&proxy, 1, "");
ExpectLine(&proxy, 2, "+=");
REQUIRE(proxy.Eof());
}
TEST_CASE("DefinesStreamProxy: Can token-join symbols and identifiers", "[parsing][parsingstream]")
{
const std::vector<std::string> lines{
"#define GLUE(a, b) a ## b",
"GLUE(+, hello)",
"GLUE(world, =)",
};
MockParserLineStream mockStream(lines);
DefinesStreamProxy proxy(&mockStream);
ExpectLine(&proxy, 1, "");
ExpectLine(&proxy, 2, "+hello");
ExpectLine(&proxy, 3, "world=");
REQUIRE(proxy.Eof());
}
TEST_CASE("DefinesStreamProxy: Can token-join strings", "[parsing][parsingstream]")
{
const std::vector<std::string> lines{
"#define GLUE(a, b) a ## b",
"GLUE(\"Hello\", \"World\")",
"GLUE(\"\", \"Cat\")",
};
MockParserLineStream mockStream(lines);
@ -1014,7 +1048,23 @@ namespace test::parsing::impl::defines_stream_proxy
ExpectLine(&proxy, 1, "");
ExpectLine(&proxy, 2, "\"HelloWorld\"");
ExpectLine(&proxy, 3, "Hello5");
ExpectLine(&proxy, 3, "\"Cat\"");
REQUIRE(proxy.Eof());
}
TEST_CASE("DefinesStreamProxy: Combined string tokens keep escape sequences", "[parsing][parsingstream]")
{
const std::vector<std::string> lines{
"#define GLUE(a, b) a ## b",
"GLUE(\"He\\\"llo\", \"W\\\\orld\")",
};
MockParserLineStream mockStream(lines);
DefinesStreamProxy proxy(&mockStream);
ExpectLine(&proxy, 1, "");
ExpectLine(&proxy, 2, "\"He\\\"lloW\\\\orld\"");
REQUIRE(proxy.Eof());
}