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60d9959dd8
For example, following transformation:
- isempty(s) ? NULL : s
+ empty_to_null(s)
would get applied to the empty_to_null function itself as well,
causing an infinite recursion, like:
--- src/basic/string-util.h
+++ /tmp/cocci-output-307-9f76e6-string-util.h
@@ -50,11 +50,11 @@ static inline bool isempty(const char *p
}
static inline const char *empty_to_null(const char *p) {
- return isempty(p) ? NULL : p;
+ return empty_to_null(p);
}
Let's avoid that by checking the current match position
61 lines
948 B
Plaintext
61 lines
948 B
Plaintext
@@
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/* Avoid running this transformation on the strempty function itself */
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position p : script:python() { p[0].current_element != "strempty" };
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expression s;
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@@
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(
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- s@p ?: ""
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+ strempty(s)
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- s@p ? s : ""
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+ strempty(s)
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)
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@@
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position p : script:python() { p[0].current_element != "strempty" };
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expression s;
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@@
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- if (!s@p)
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- s = "";
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+ s = strempty(s);
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@@
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position p : script:python() { p[0].current_element != "strnull" };
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expression s;
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@@
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(
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- s@p ?: "(null)"
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+ strnull(s)
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- s@p ? s : "(null)"
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+ strnull(s)
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)
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@@
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position p : script:python() { p[0].current_element != "strnull" };
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expression s;
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@@
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- if (!s@p)
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- s = "(null)";
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+ s = strnull(s);
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@@
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position p : script:python() { p[0].current_element != "strna" };
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expression s;
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@@
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(
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- s@p ?: "n/a"
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+ strna(s)
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- s@p ? s : "n/a"
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+ strna(s)
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)
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@@
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position p : script:python() { p[0].current_element != "strna" };
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expression s;
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@@
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- if (!s@p)
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- s = "n/a";
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+ s = strna(s);
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