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| author | Boris Kolpackov <boris@codesynthesis.com> | 2020-03-20 08:40:59 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2020-03-20 08:40:59 +0200 |
| commit | ce29e3d72ded432b9ac9354ac92c588142de9b89 (patch) | |
| tree | fd7acd2d0e34b10315b5572f98619dbbf285c177 /libbuild2/parser.cxx | |
| parent | aeda0dedb2cdb0980d976ae92e1672476b62d7ed (diff) | |
Lexer support for default value assignment (?=)
Note: not yet supported in the parser.
Diffstat (limited to 'libbuild2/parser.cxx')
| -rw-r--r-- | libbuild2/parser.cxx | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libbuild2/parser.cxx b/libbuild2/parser.cxx index 91f2d5c..ec5e161 100644 --- a/libbuild2/parser.cxx +++ b/libbuild2/parser.cxx @@ -2749,6 +2749,16 @@ namespace build2 void parser:: parse_variable (token& t, type& tt, const variable& var, type kind) { + // @@ TODO: yet unclear what should the logic be here: we could expect + // the called to handle skipping or skip it here. Need to see how + // everything fits. + // + // Note that here we treat default assignment (?=) the same as normal + // assignment expecting the caller to check whether the assignment is + // necessary (and skipping evaluating the value altogether otherwise). + // + assert (kind != type::default_assign); + value rhs (parse_variable_value (t, tt)); value& lhs ( |