diff options
| author | Boris Kolpackov <boris@codesynthesis.com> | 2020-11-17 11:23:36 +0200 |
|---|---|---|
| committer | Boris Kolpackov <boris@codesynthesis.com> | 2020-11-17 11:23:36 +0200 |
| commit | 818dd4a4e743bc8c93d1be67685b1f2e5db6dcf5 (patch) | |
| tree | 57c35b478818ab69fd784263cce193e32bd58479 /libbuild2/cc/lexer.hxx | |
| parent | 3ac5998ee4d5e30a35ce7c043b9389598d7f147f (diff) | |
Implement modules pseudo-directive parsing (p1703, p1857)
Diffstat (limited to 'libbuild2/cc/lexer.hxx')
| -rw-r--r-- | libbuild2/cc/lexer.hxx | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libbuild2/cc/lexer.hxx b/libbuild2/cc/lexer.hxx index d3fe807..b4e1045 100644 --- a/libbuild2/cc/lexer.hxx +++ b/libbuild2/cc/lexer.hxx @@ -25,7 +25,8 @@ namespace build2 // as #line, #pragma, but not #include (which is diagnosed). Currently, // all preprocessor directives except #line are ignored and no values are // saved from literals. The #line directive (and its shorthand notation) - // is recognized to provide the logical token location. + // is recognized to provide the logical token location. Note that the + // modules-related pseudo-directives are not recognized or handled. // // While at it we also calculate the checksum of the input ignoring // comments, whitespaces, etc. This is used to detect changes that do not @@ -58,6 +59,7 @@ namespace build2 struct token { token_type type = token_type::eos; + bool first = false; // First token of a logical line. string value; // Logical position. @@ -121,7 +123,7 @@ namespace build2 private: void - next (token&, xchar, bool); + next (token&, pair<xchar, bool /* first */>, bool); void number_literal (token&, xchar); @@ -141,7 +143,7 @@ namespace build2 void line_directive (token&, xchar); - xchar + pair<xchar, bool /* first */> skip_spaces (bool newline = true); // The char_scanner adaptation for newline escape sequence processing. |