From 4c56b1319df6e3218bfb1b1f756c7de0b8316ebb Mon Sep 17 00:00:00 2001 From: Alex Rozenman <rozenman@gmail.com> Date: Sat, 12 Sep 2009 11:48:56 +0300 Subject: [PATCH] Provide an additional sub-message for clarity. Add "symbol not found in production" error message when an "invalid reference" is detected in named references resolution. * src/scan-code.l: Update "invalid reference" case. * tests/named-ref.at: Adjust test-cases. --- ChangeLog | 9 ++++++ src/scan-code.l | 37 +++++++++++------------- tests/named-refs.at | 70 ++++++++++++++++++++++++++++++++------------- 3 files changed, 75 insertions(+), 41 deletions(-) diff --git a/ChangeLog b/ChangeLog index bb4c8665..6c48f971 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,12 @@ +2009-09-12 Alex Rozenman <rozenman@gmail.com> + + Provide an additional sub-message for clarity. + Add "symbol not found in production" error message when + an "invalid reference" is detected in named references + resolution. + * src/scan-code.l: Update "invalid reference" case. + * tests/named-ref.at: Adjust test-cases. + 2009-09-10 Joel E. Denny <jdenny@clemson.edu> Clean up yacc.c a little. diff --git a/src/scan-code.l b/src/scan-code.l index 196fa807..0cf1cbd3 100644 --- a/src/scan-code.l +++ b/src/scan-code.l @@ -590,29 +590,24 @@ parse_ref (char *cp, symbol_list *rule, int rule_length, switch (valid_variants) { case 0: - if (variant_count == 0) - { - if (explicit_bracketing || !ref_tail_fields) - complain_at (text_loc, _("unresolved reference: %s"), - quote(text)); - else - { - unsigned len = ref_tail_fields - text; - char *str = strndup (text, len); - text_loc.end.column = text_loc.start.column + len; - complain_at (text_loc, _("unresolved reference: %s"), - quote (str)); - free (str); - } - } - else - { - complain_at (text_loc, _("invalid reference: %s"), - quote (text)); + { + unsigned len = (explicit_bracketing || !ref_tail_fields) ? + cp_end - cp : ref_tail_fields - cp; + const char *message = "symbol not found in production"; + + complain_at (text_loc, _("invalid reference: %s"), quote (text)); + if (midrule_rhs_index) + complain_at (rule->location, _(" %s before $%d: %.*s"), + message, midrule_rhs_index, len, cp); + else + complain_at (rule->location, _(" %s: %.*s"), + message, len, cp); + + if (variant_count > 0) show_sub_messages (cp, explicit_bracketing, midrule_rhs_index, dollar_or_at, false); - } - return INVALID_REF; + return INVALID_REF; + } case 1: { if (variant_count > 1) diff --git a/tests/named-refs.at b/tests/named-refs.at index 174a4f2f..c12155e3 100644 --- a/tests/named-refs.at +++ b/tests/named-refs.at @@ -255,14 +255,17 @@ exp: ]]) AT_BISON_CHECK([-o test.c test.y], 1, [], -[[test.y:50.51-60: unresolved reference: `$<ival>lo9' +[[test.y:50.51-60: invalid reference: `$<ival>lo9' +test.y:50.3-68: symbol not found in production: lo9 test.y:51.51-60: warning: misleading reference: `$<ival>exp' test.y:42.1-3: warning: refers to: $exp at $$ test.y:51.7: warning: possibly meant: $x, hiding $exp at $1 test.y:51.41: warning: possibly meant: $r, hiding $exp at $4 test.y:52.51-52: $l of `exp' has no declared type -test.y:55.46-49: unresolved reference: `$r12' -test.y:56.29-33: unresolved reference: `$expo' +test.y:55.46-49: invalid reference: `$r12' +test.y:55.3-53: symbol not found in production: r12 +test.y:56.29-33: invalid reference: `$expo' +test.y:56.3-46: symbol not found in production: expo ]]) AT_CLEANUP @@ -353,33 +356,44 @@ factor: '(' expr ')' { $$ = $2; } ; ]]) AT_BISON_CHECK([-o test.c test.y], 1, [], -[[test.y:24.36-41: unresolved reference: `$cond1' +[[test.y:24.36-41: invalid reference: `$cond1' +test.y:23.11-24.62: symbol not found in production: cond1 test.y:26.43-53: invalid reference: `$stmt.field' +test.y:25.11-26.60: symbol not found in production: stmt test.y:25.35-38: possibly meant: $then.field, hiding $stmt.field at $4 test.y:28.43-52: invalid reference: `$stmt.list' +test.y:27.11-28.59: symbol not found in production: stmt test.y:27.30-38: possibly meant: $[stmt.list] at $4 test.y:30.43-46: ambiguous reference: `$xyz' test.y:29.35-37: refers to: $xyz at $4 test.y:29.50-52: refers to: $xyz at $6 test.y:32.43-52: invalid reference: `$stmt.list' +test.y:31.11-32.63: symbol not found in production: stmt test.y:31.40-43: possibly meant: $then, hiding $[stmt.list] at $4 test.y:31.61-64: possibly meant: $else, hiding $[stmt.list] at $6 test.y:34.43-58: invalid reference: `$stmt.list.field' +test.y:33.11-34.69: symbol not found in production: stmt test.y:33.40-43: possibly meant: $then.field, hiding $[stmt.list].field at $4 test.y:33.61-64: possibly meant: $else.field, hiding $[stmt.list].field at $6 test.y:36.43-54: invalid reference: `$[stmt.list]' +test.y:35.11-36.71: symbol not found in production: stmt.list test.y:35.40-43: possibly meant: $then, hiding $[stmt.list] at $4 test.y:35.61-64: possibly meant: $else, hiding $[stmt.list] at $6 test.y:38.43-49: invalid reference: `$then.1' +test.y:37.11-38.60: symbol not found in production: then test.y:37.40-45: possibly meant: $[then.1] at $4 test.y:40.43-55: invalid reference: `$then.1.field' +test.y:39.11-40.66: symbol not found in production: then test.y:39.40-45: possibly meant: $[then.1].field at $4 test.y:42.44-50: invalid reference: `$stmt.x' +test.y:41.12-42.57: symbol not found in production: stmt test.y:41.36-41: possibly meant: $[stmt.x].x, hiding $stmt.x at $4 test.y:41.36-41: possibly meant: $[stmt.x] at $4 test.y:44.13-22: invalid reference: `$if-stmt-a' +test.y:43.12-44.59: symbol not found in production: if test.y:43.1-9: possibly meant: $[if-stmt-a] at $$ test.y:46.46-54: invalid reference: `$then-a.f' +test.y:45.12-46.65: symbol not found in production: then test.y:45.41-46: possibly meant: $[then-a].f at $4 ]]) AT_CLEANUP @@ -513,21 +527,37 @@ sym_a : 'a'; sym_b : 'b'; ]]) AT_BISON_CHECK([-o test.c test.y], 1, [], -[[test.y:13.8-11: unresolved reference: `$sym' -test.y:16.8-15: unresolved reference: `$<aa>sym' -test.y:19.8-19: unresolved reference: `$[sym.field]' -test.y:22.8-23: unresolved reference: `$<aa>[sym.field]' -test.y:25.8-11: unresolved reference: `$sym' -test.y:28.8-15: unresolved reference: `$<aa>sym' -test.y:31.8-13: unresolved reference: `$[sym]' -test.y:33.8-17: unresolved reference: `$<aa>[sym]' -test.y:37.8-11: unresolved reference: `$sym' -test.y:40.8-15: unresolved reference: `$<aa>sym' -test.y:43.8-19: unresolved reference: `$[sym-field]' -test.y:46.8-23: unresolved reference: `$<aa>[sym-field]' -test.y:49.8-11: unresolved reference: `$sym' -test.y:52.8-15: unresolved reference: `$<aa>sym' -test.y:55.8-13: unresolved reference: `$[sym]' -test.y:57.8-17: unresolved reference: `$<aa>[sym]' +[[test.y:13.8-17: invalid reference: `$sym.field' +test.y:12.1-13.21: symbol not found in production: sym +test.y:16.8-21: invalid reference: `$<aa>sym.field' +test.y:15.1-16.25: symbol not found in production: sym +test.y:19.8-19: invalid reference: `$[sym.field]' +test.y:18.1-19.23: symbol not found in production: sym.field +test.y:22.8-23: invalid reference: `$<aa>[sym.field]' +test.y:21.1-22.27: symbol not found in production: sym.field +test.y:25.8-11: invalid reference: `$sym' +test.y:24.1-25.15: symbol not found in production: sym +test.y:28.8-15: invalid reference: `$<aa>sym' +test.y:27.1-28.19: symbol not found in production: sym +test.y:31.8-13: invalid reference: `$[sym]' +test.y:30.1-33.21: symbol not found in production before $3: sym +test.y:33.8-17: invalid reference: `$<aa>[sym]' +test.y:30.1-33.21: symbol not found in production: sym +test.y:37.8-17: invalid reference: `$sym-field' +test.y:36.1-37.21: symbol not found in production: sym +test.y:40.8-21: invalid reference: `$<aa>sym-field' +test.y:39.1-40.25: symbol not found in production: sym +test.y:43.8-19: invalid reference: `$[sym-field]' +test.y:42.1-43.23: symbol not found in production: sym-field +test.y:46.8-23: invalid reference: `$<aa>[sym-field]' +test.y:45.1-46.27: symbol not found in production: sym-field +test.y:49.8-11: invalid reference: `$sym' +test.y:48.1-49.15: symbol not found in production: sym +test.y:52.8-15: invalid reference: `$<aa>sym' +test.y:51.1-52.19: symbol not found in production: sym +test.y:55.8-13: invalid reference: `$[sym]' +test.y:54.1-57.21: symbol not found in production before $3: sym +test.y:57.8-17: invalid reference: `$<aa>[sym]' +test.y:54.1-57.21: symbol not found in production: sym ]]) AT_CLEANUP -- 2.45.2