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tests: check token redeclaration

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* src/symtab.c (symbol_class_set): Report previous definitions when
redeclared.
* tests/input.at (Symbol redeclared): New.
This commit is contained in:
Akim Demaille
2019-09-06 17:47:16 +02:00
parent 2dd882bce5
commit 378963b139
4 changed files with 58 additions and 6 deletions
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15
tests/diagnostics.at
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@@ -67,18 +67,33 @@ exp: %empty;
[[input.y:9.12-14: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
9 | %token FOO <warning>FOO</warning> FOO
| <warning>^~~</warning>
input.y:9.8-10: previous declaration
9 | %token <note>FOO</note> FOO FOO
| <note>^~~</note>
input.y:9.16-18: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
9 | %token FOO FOO <warning>FOO</warning>
| <warning>^~~</warning>
input.y:9.8-10: previous declaration
9 | %token <note>FOO</note> FOO FOO
| <note>^~~</note>
input.y:10.8-10: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
10 | %token <warning>FOO</warning> FOO FOO
| <warning>^~~</warning>
input.y:9.8-10: previous declaration
9 | %token <note>FOO</note> FOO FOO
| <note>^~~</note>
input.y:10.13-15: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
10 | %token FOO <warning>FOO</warning> FOO
| <warning>^~~</warning>
input.y:9.8-10: previous declaration
9 | %token <note>FOO</note> FOO FOO
| <note>^~~</note>
input.y:10.18-20: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
10 | %token FOO FOO <warning>FOO</warning>
| <warning>^~~</warning>
input.y:9.8-10: previous declaration
9 | %token <note>FOO</note> FOO FOO
| <note>^~~</note>
]])