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Henrik Böving f180c9ce17
fix: handling of EmitC for small hex string literals (#13435) 
This PR fixes a bug in EmitC that can be caused by working with the
string literal `"\x01abc"` in
Lean and causes a C compiler error.

The error is as follows:
```
run.c:29:189: error: hex escape sequence out of range
   29 | static const lean_string_object l_badString___closed__0_value = {.m_header = {.m_rc = 0, .m_cs_sz = 0, .m_other = 0, .m_tag = 249}, .m_size = 5, .m_capacity = 5, .m_length = 4, .m_data = "\x01abc"};
      |                                                                                                                                                                                             ^~~~~~~
1 error generated.
```
This happens as hex escape sequences can be arbitrarily long while lean
expects them to cut off
after two chars. Thus, the C compiler parses the string as one large hex
escape sequence `01abc` and
subsequently notices this is too large.

Discovered by @datokrat
2026-04-17 15:16:28 +00:00
..
534.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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array.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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bigctor.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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bytearray_bug.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
bytearray_bug.lean.out.expected chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
char_escape.lean fix: handling of EmitC for small hex string literals (#13435) 2026-04-17 15:16:28 +00:00
char_escape.lean.out.expected fix: handling of EmitC for small hex string literals (#13435) 2026-04-17 15:16:28 +00:00
closure_bug1.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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escape.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
escape.lean.out.expected chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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extractClosedMutualBlock.lean.out.expected chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
file_read_overflow.lean fix: file read buffer overflow (#13392) 2026-04-13 17:56:27 +00:00
float.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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large_closure_bug.lean feat: add instance validation checks in addInstance (#13389) 2026-04-16 17:48:16 +00:00
large_closure_bug.lean.out.expected chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
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print_error.lean chore: switch to new test/bench suite (#12590) 2026-02-25 13:51:53 +00:00
print_error.lean.init.sh chore: migrate pkg tests (#12889) 2026-03-11 18:55:46 +00:00
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run_bench.sh chore: fixes from #13103 "enable separate codegen" (#13241) 2026-04-02 11:13:22 +00:00
run_test.sh chore: fixes from #13103 "enable separate codegen" (#13241) 2026-04-02 11:13:22 +00:00
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StackOverflow.lean.init.sh chore: migrate pkg tests (#12889) 2026-03-11 18:55:46 +00:00
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