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16 lines
1.1 KiB
C
16 lines
1.1 KiB
C
#ifndef CONTEXT_FLAGS_H
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#define CONTEXT_FLAGS_H
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// The grammar permits certain statements which are syntactically invalid, (a) because it's awkward to handle
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// there, and (b) because we get far better control over error messages here (vs. 'syntax error').
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// The following flags are used as the CST is built from the AST for CST-build-time validation.
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#define IN_BREAKABLE 0x00000200 // break/continue are only OK (recursively) inside for/while/do-while
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#define IN_BEGIN_OR_END 0x00000400 // $stuff is not OK (recursively) inside begin/end
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#define IN_FUNC_DEF 0x00000800 // locals only valid in func/subr; no srec assignments in functions
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#define IN_SUBR_DEF 0x00001000 // locals only valid in func/subr
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#define IN_MLR_FILTER 0x00002000 // Anywhere within mlr filter, the 'filter' keyword is invalid
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#define IN_MLR_FINAL_FILTER 0x00004000 // mlr filter's final statement must be a bare boolean
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#define IN_TRIPLE_FOR_CONTINUE 0x00004000 // Final statement of triple-for continuation statements must be a bare boolean
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#endif // CONTEXT_FLAGS_H
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