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Mickaël Germain
0f6e8ded1d
Add an APPLY action to $<LIST:TRANSFORM> that evaluates an arbitrary <body> once per selected element, with $<_0> bound to the element, so a list can be mapped through any generator expression at generate time. Unlike the configure-time list(TRANSFORM ... APPLY <function>) command, the genex form has no side effects and returns the body's value directly, and a list-valued result expands into multiple elements. The body evaluates in its own binding scope, so nested APPLY actions can shadow $<_0>, and context-sensitive state it observes (such as target dependencies) still propagates to the enclosing expression. APPLY accepts the same AT/FOR/REGEX selectors as the canned actions. Issue: #27892
6 lines
280 B
CMake
6 lines
280 B
CMake
# A body that errors for an element must fail the whole expression, not be
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# silently dropped. $<LIST:GET,...,9> is out of range for a single-element
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# operand.
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file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/x.txt"
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CONTENT "$<LIST:TRANSFORM,a;b,APPLY,$<LIST:GET,$<_0>,9>>")
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