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-rw-r--r--libbuild2/build/script/parser.hxx34
1 files changed, 26 insertions, 8 deletions
diff --git a/libbuild2/build/script/parser.hxx b/libbuild2/build/script/parser.hxx
index 4b98cbc..a652cf4 100644
--- a/libbuild2/build/script/parser.hxx
+++ b/libbuild2/build/script/parser.hxx
@@ -141,13 +141,29 @@ namespace build2
// builtin after the script name or after another diag builtin) is
// reported as ambiguity.
//
- // At the end of pre-parsing either diag_name or diag_line (but not
+ // At the end of pre-parsing either diag_name_ or diag_line_ (but not
// both) are present.
//
- optional<pair<string, location>> diag_name;
- optional<pair<string, location>> diag_name2; // Ambiguous script name.
- optional<pair<line, location>> diag_line;
- uint8_t diag_weight = 0;
+ optional<pair<string, location>> diag_name_;
+ optional<pair<string, location>> diag_name2_; // Ambiguous script name.
+ optional<pair<line, location>> diag_line_;
+ uint8_t diag_weight_ = 0;
+
+ // Custom dependency change tracking.
+ //
+ // The depdb builtin can be used to change the default dependency
+ // change tracking:
+ //
+ // depdb clear - Cancels the default variables, targets, and
+ // prerequisites change tracking. Can only be
+ // the first depdb builtin call.
+ //
+ // depdb hash <args> - Track the argument list change as a hash.
+ //
+ // depdb string <arg> - Track the argument (single) change as string.
+ //
+ optional<location> depdb_clear_; // 'depdb clear' location if any.
+ lines depdb_lines_; // Note: excludes 'depdb clear'.
// True during pre-parsing when the pre-parse mode is temporarily
// suspended to perform expansion.
@@ -156,10 +172,12 @@ namespace build2
// The alternative location where the next line should be saved.
//
- // It is set to NULL before the script line get parsed, indicating
- // that the line should by default be appended to the script. However,
+ // Before the script line gets parsed, it is set to a temporary value
+ // that will by default be appended to the script. However,
// parse_program() can point it to a different location where the line
- // should be saved instead (e.g., diag_line, etc).
+ // should be saved instead (e.g., diag_line_, etc) or set it to NULL
+ // if the line is handled in an ad-hoc way and should be dropped
+ // (e.g., depdb_clear_, etc).
//
line* save_line_;