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diagnostics: modernize the display of submessages

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Since Bison 2.7, output was indented four spaces for explanatory
statements.  For example:

    input.y:2.7-13: error: %type redeclaration for exp
    input.y:1.7-11:     previous declaration

Since the introduction of caret-diagnostics, it became less clear.
Remove the indentation and display submessages as in GCC:

    input.y:2.7-13: error: %type redeclaration for exp
        2 | %type <float> exp
          |       ^~~~~~~
    input.y:1.7-11: note: previous declaration
        1 | %type <int> exp
          |       ^~~~~

* src/complain.h (SUB_INDENT): Remove.
(warnings): Add "note" to the enum.
* src/complain.h, src/complain.c (complain_indent): Replace by...
(subcomplain): this.
Adjust all dependencies.
* tests/actions.at, tests/diagnostics.at, tests/glr-regression.at,
* tests/input.at, tests/named-refs.at, tests/regression.at:
Adjust expectations.
This commit is contained in:
Victor Morales Cayuela
2020-02-14 18:41:55 +01:00
committed by Akim Demaille
parent a09d0ae4d1
commit e09a72eeb0
16 changed files with 284 additions and 364 deletions
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17
src/reader.c
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@@ -124,16 +124,13 @@ record_merge_function_type (int merger, uniqstr type, location declaration_loc)
aver (merge_function != NULL && merger_find == merger);
if (merge_function->type != NULL && !UNIQSTR_EQ (merge_function->type, type))
{
int indent = 0;
complain_indent (&declaration_loc, complaint, &indent,
_("result type clash on merge function %s: "
"<%s> != <%s>"),
quote (merge_function->name), type,
merge_function->type);
indent += SUB_INDENT;
complain_indent (&merge_function->type_declaration_loc, complaint,
&indent,
_("previous declaration"));
complain (&declaration_loc, complaint,
_("result type clash on merge function %s: "
"<%s> != <%s>"),
quote (merge_function->name), type,
merge_function->type);
subcomplain (&merge_function->type_declaration_loc, complaint,
_("previous declaration"));
}
merge_function->type = uniqstr_new (type);
merge_function->type_declaration_loc = declaration_loc;