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27 lines
892 B
27 lines
892 B
3 years ago
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## This is proposed interface in https://github.com/sass/libsass/pull/1288
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Additional debugging macros with low overhead are available, `TRACE()` and `TRACEINST()`.
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Both macros simulate a string stream, so they can be used like this:
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TRACE() << "Reached.";
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produces:
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[LibSass] parse_value parser.cpp:1384 Reached.
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`TRACE()`
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logs function name, source filename, source file name to the standard error and the attached
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stream to the standard error.
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`TRACEINST(obj)`
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logs object instance address, function name, source filename, source file name to the standard error and the attached stream to the standard error, for example:
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TRACEINST(this) << "String_Constant created " << this;
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produces:
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[LibSass] 0x8031ba980:String_Constant ./ast.hpp:1371 String_Constant created (0,"auto")
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The macros generate output only of `LibSass_TRACE` is set in the environment.
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