ADTast-experimental
Last change
on this file since cb69fba was
4ec9513,
checked in by Andrew Beach <ajbeach@…>, 2 years ago
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Converted validate C, including adding DimensionExpr? to the new ast.
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-
Property mode set to
100644
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File size:
1.4 KB
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1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // ReturnCheck.cpp -- Run simple (non-typed) checks on return statements. |
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8 | // |
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9 | // Author : Andrew Beach |
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10 | // Created On : Fri Mar 18 14:07:00 2022 |
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11 | // Last Modified By : Andrew Beach |
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12 | // Last Modified On : Fri Mar 18 14:26:00 2022 |
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13 | // Update Count : 0 |
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14 | // |
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15 | |
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16 | #include "ReturnCheck.hpp" |
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17 | |
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18 | #include "AST/Decl.hpp" |
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19 | #include "AST/Pass.hpp" |
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20 | #include "AST/Stmt.hpp" |
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21 | #include "AST/TranslationUnit.hpp" |
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22 | |
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23 | namespace Validate { |
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24 | |
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25 | namespace { |
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26 | |
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27 | struct ReturnCore : public ast::WithGuards { |
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28 | bool inVoidFunction = false; |
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29 | |
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30 | void previsit( const ast::FunctionDecl * decl ) { |
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31 | GuardValue( inVoidFunction ) = (0 == decl->returns.size()); |
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32 | } |
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33 | |
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34 | void previsit( const ast::ReturnStmt * stmt ) { |
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35 | // The only definite error case is an empty return on a non-void |
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36 | // functions. Everything else requires resolution. (You can have |
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37 | // a void expression in a return statement. |
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38 | if ( !stmt->expr && !inVoidFunction ) { |
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39 | SemanticError( stmt, "Non-void function returns no values: " ); |
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40 | } |
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41 | } |
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42 | }; |
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43 | |
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44 | } // namespace |
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45 | |
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46 | void checkReturnStatements( ast::TranslationUnit & translationUnit ) { |
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47 | ast::Pass<ReturnCore>::run( translationUnit ); |
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48 | } |
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49 | |
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50 | } // namespace Validate |
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51 | |
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52 | // Local Variables: // |
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53 | // tab-width: 4 // |
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54 | // mode: c++ // |
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55 | // compile-command: "make install" // |
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56 | // End: // |
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