aboutsummaryrefslogtreecommitdiff
path: root/libbuild2/build/script/runner.hxx
diff options
context:
space:
mode:
Diffstat (limited to 'libbuild2/build/script/runner.hxx')
-rw-r--r--libbuild2/build/script/runner.hxx84
1 files changed, 84 insertions, 0 deletions
diff --git a/libbuild2/build/script/runner.hxx b/libbuild2/build/script/runner.hxx
new file mode 100644
index 0000000..431c446
--- /dev/null
+++ b/libbuild2/build/script/runner.hxx
@@ -0,0 +1,84 @@
+// file : libbuild2/build/script/runner.hxx -*- C++ -*-
+// license : MIT; see accompanying LICENSE file
+
+#ifndef LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX
+#define LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX
+
+#include <libbuild2/types.hxx>
+#include <libbuild2/utility.hxx>
+
+#include <libbuild2/build/script/script.hxx>
+
+namespace build2
+{
+ namespace build
+ {
+ struct common;
+
+ namespace script
+ {
+ class runner
+ {
+ public:
+ // Location is the script start location (for diagnostics, etc).
+ //
+ virtual void
+ enter (environment&, const location&) = 0;
+
+ // Index is the 1-base index of this command line in the command list.
+ // If it is 0 then it means there is only one command. This
+ // information can be used, for example, to derive file names.
+ //
+ // Location is the start position of this command line in the script.
+ // It can be used in diagnostics.
+ //
+ virtual void
+ run (environment&,
+ const command_expr&,
+ size_t index,
+ const location&) = 0;
+
+ virtual bool
+ run_if (environment&,
+ const command_expr&,
+ size_t,
+ const location&) = 0;
+
+ // Location is the script end location (for diagnostics, etc).
+ //
+ virtual void
+ leave (environment&, const location&) = 0;
+ };
+
+ // Run command expressions.
+ //
+ // In dry-run mode don't run the expressions unless they are if-
+ // conditions or execute the set or exit builtins, but prints them at
+ // verbosity level 2 and up.
+ //
+ class default_runner: public runner
+ {
+ public:
+ virtual void
+ enter (environment&, const location&) override;
+
+ virtual void
+ run (environment&,
+ const command_expr&,
+ size_t,
+ const location&) override;
+
+ virtual bool
+ run_if (environment&,
+ const command_expr&,
+ size_t,
+ const location&) override;
+
+ virtual void
+ leave (environment&, const location&) override;
+ };
+ }
+ }
+}
+
+#endif // LIBBUILD2_BUILD_SCRIPT_RUNNER_HXX