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AK: Resolve format related circular dependencies properly.
With this commit, <AK/Format.h> has a more supportive role and isn't used directly. Essentially, there now is a public 'vformat' function ('v' for vector) which takes already type erased parameters. The name is choosen to indicate that this function behaves similar to C-style functions taking a va_list equivalent. The interface for frontend users are now 'String::formatted' and 'StringBuilder::appendff'.
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8 changed files with 105 additions and 100 deletions
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@ -26,43 +26,44 @@
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#include <AK/TestSuite.h>
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#include <AK/Format.h>
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#include <AK/String.h>
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#include <AK/StringBuilder.h>
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TEST_CASE(format_string_literals)
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{
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EXPECT_EQ(AK::format("prefix-{}-suffix", "abc"), "prefix-abc-suffix");
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EXPECT_EQ(AK::format("{}{}{}", "a", "b", "c"), "abc");
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EXPECT_EQ(String::formatted("prefix-{}-suffix", "abc"), "prefix-abc-suffix");
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EXPECT_EQ(String::formatted("{}{}{}", "a", "b", "c"), "abc");
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}
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TEST_CASE(format_integers)
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{
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EXPECT_EQ(AK::format("{}", 42u), "42");
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EXPECT_EQ(AK::format("{:4}", 42u), " 42");
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EXPECT_EQ(AK::format("{:08}", 42u), "00000042");
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// EXPECT_EQ(AK::format("{:7}", -17), " -17");
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EXPECT_EQ(AK::format("{}", -17), "-17");
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EXPECT_EQ(AK::format("{:04}", 13), "0013");
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EXPECT_EQ(AK::format("{:08x}", 4096), "00001000");
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EXPECT_EQ(AK::format("{:x}", 0x1111222233334444ull), "1111222233334444");
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EXPECT_EQ(String::formatted("{}", 42u), "42");
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EXPECT_EQ(String::formatted("{:4}", 42u), " 42");
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EXPECT_EQ(String::formatted("{:08}", 42u), "00000042");
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// EXPECT_EQ(String::formatted("{:7}", -17), " -17");
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EXPECT_EQ(String::formatted("{}", -17), "-17");
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EXPECT_EQ(String::formatted("{:04}", 13), "0013");
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EXPECT_EQ(String::formatted("{:08x}", 4096), "00001000");
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EXPECT_EQ(String::formatted("{:x}", 0x1111222233334444ull), "1111222233334444");
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}
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TEST_CASE(reorder_format_arguments)
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{
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EXPECT_EQ(AK::format("{1}{0}", "a", "b"), "ba");
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EXPECT_EQ(AK::format("{0}{1}", "a", "b"), "ab");
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EXPECT_EQ(AK::format("{0}{0}{0}", "a", "b"), "aaa");
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EXPECT_EQ(AK::format("{1}{}{0}", "a", "b", "c"), "baa");
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EXPECT_EQ(String::formatted("{1}{0}", "a", "b"), "ba");
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EXPECT_EQ(String::formatted("{0}{1}", "a", "b"), "ab");
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EXPECT_EQ(String::formatted("{0}{0}{0}", "a", "b"), "aaa");
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EXPECT_EQ(String::formatted("{1}{}{0}", "a", "b", "c"), "baa");
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}
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TEST_CASE(escape_braces)
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{
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EXPECT_EQ(AK::format("{{{}", "foo"), "{foo");
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EXPECT_EQ(AK::format("{}}}", "bar"), "bar}");
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EXPECT_EQ(String::formatted("{{{}", "foo"), "{foo");
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EXPECT_EQ(String::formatted("{}}}", "bar"), "bar}");
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}
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TEST_CASE(everything)
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{
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EXPECT_EQ(AK::format("{{{:04}/{}/{0:8}/{1}", 42u, "foo"), "{0042/foo/ 42/foo");
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EXPECT_EQ(String::formatted("{{{:04}/{}/{0:8}/{1}", 42u, "foo"), "{0042/foo/ 42/foo");
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}
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TEST_CASE(string_builder)
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@ -76,7 +77,7 @@ TEST_CASE(string_builder)
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TEST_CASE(format_without_arguments)
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{
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EXPECT_EQ(AK::format("foo"), "foo");
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EXPECT_EQ(String::formatted("foo"), "foo");
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}
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TEST_MAIN(Format)
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