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37 строки
1.0 KiB
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37 строки
1.0 KiB
Plaintext
2020
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https://pmeerw.net/blog/programming/unused-return.html
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2018
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https://devblogs.microsoft.com/cppblog/exploring-clang-tooling-part-2-examining-the-clang-ast-with-clang-query/
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#!/bin/sh
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# unused-return.sh: Run clang-query to report unused return values.
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# When --dump, print the AST of matching syntax.
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if [ "x$1" = "x--dump" ]; then
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dump="set output dump"
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shift
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fi
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query='m
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callExpr(
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isExpansionInMainFile(),
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hasParent(anyOf(
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compoundStmt(),
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ifStmt(hasCondition(expr().bind("cond"))),
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whileStmt(hasCondition(expr().bind("cond"))),
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doStmt(hasCondition(expr().bind("cond")))
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)),
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unless(hasType(voidType())),
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unless(isTypeDependent()),
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unless(cxxOperatorCallExpr()),
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unless(callee(namedDecl(anyOf(
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hasName("memset"),
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hasName("setlength"),
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hasName("flags"),
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hasName("width"),
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hasName("__builtin_memcpy")
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)))),
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unless(equalsBoundNode("cond"))).bind("unused-return")'
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clang-query-9 -extra-arg="-w" -c="set bind-root false" -c="$dump" -c="$query" "$@" --
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