diff options
Diffstat (limited to 'libbuild2/build/script/script.hxx')
| -rw-r--r-- | libbuild2/build/script/script.hxx | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/libbuild2/build/script/script.hxx b/libbuild2/build/script/script.hxx index 1540ed8..29d62aa 100644 --- a/libbuild2/build/script/script.hxx +++ b/libbuild2/build/script/script.hxx @@ -40,7 +40,19 @@ namespace build2 // Note that the variables are not pre-entered into a pool during the // parsing phase, so the line variable pointers are NULL. // - build2::script::lines lines; + build2::script::lines lines; + + // Referenced ordinary (non-special) variables. + // + // Used for the script semantics change tracking. The variable list is + // filled during the pre-parsing phase and is checked against during + // the execution phase. If during execution some non-script-local + // variable is not found in the list (may happen for a computed name), + // then the execution fails since the script semantics may not be + // properly tracked (the variable value change will not trigger the + // target rebuild). + // + small_vector<string, 1> vars; location start_loc; location end_loc; |