Add a TableGen lexer #2751
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Add a TableGen lexer #2751
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This commit adds a basic lexer for LLVM's TableGen DSL[1][2]. The major design decision is about how to tokenize "code blocks" since those are, at a TableGen language level, string literals. In practice, however, in LLVM 99% of the time they are snippets of C++ which are processed by a TableGen backend. This would ideally be a configurable property of the lexer. For the initial implementation, it is assumed that code blocks contain C++ code and so the CppLexer is invoked on their contents. [1] https://llvm.org/docs/TableGen/index.html [2] https://llvm.org/docs/TableGen/ProgRef.html
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Some example output:
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Just want to add that this will be a great addition, as we are currently adding a lot of TableGen code blocks to our sphinx project! |
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I'm sure everyone working on LLVM will appreciate it, merged for 2.19, thanks! |
This was referenced Sep 25, 2025
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This commit adds a basic lexer for LLVM's TableGen DSL[1][2].
The major design decision is about how to tokenize "code blocks" since those are, at a TableGen language level, string literals. In practice, however, in LLVM 99% of the time they are snippets of C++ which are processed by a TableGen backend. This would ideally be a configurable property of the lexer. For the initial implementation, it is assumed that code blocks contain C++ code and so the CppLexer is invoked on their contents.
[1] https://llvm.org/docs/TableGen/index.html
[2] https://llvm.org/docs/TableGen/ProgRef.html