| 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 | // HandleAttributes.cc -- |
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| 8 | // |
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| 9 | // Author : Rob Schluntz |
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| 10 | // Created On : Fri Jul 27 10:15:06 2018 |
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| 11 | // Last Modified By : Rob Schluntz |
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| 12 | // Last Modified On : Fri Jul 27 10:16:43 2018 |
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| 13 | // Update Count : 2 |
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| 14 | // |
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| 15 | |
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| 16 | #include "HandleAttributes.h" |
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| 17 | |
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| 18 | #include "CompilationState.h" |
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| 19 | #include "Common/Eval.h" |
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| 20 | #include "Common/PassVisitor.h" |
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| 21 | #include "Common/SemanticError.h" |
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| 22 | #include "ResolvExpr/Resolver.h" |
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| 23 | #include "SynTree/Attribute.h" |
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| 24 | #include "SynTree/Declaration.h" |
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| 25 | #include "SynTree/Type.h" |
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| 26 | |
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| 27 | namespace Validate { |
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| 28 | namespace { |
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| 29 | struct HandleAttributes : public WithIndexer { |
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| 30 | void previsit( ObjectDecl * decl ); |
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| 31 | void previsit( FunctionDecl * decl ); |
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| 32 | }; |
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| 33 | } // namespace |
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| 34 | |
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| 35 | void handleAttributes( std::list< Declaration * > &translationUnit ) { |
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| 36 | PassVisitor<HandleAttributes> handler; |
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| 37 | acceptAll( translationUnit, handler ); |
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| 38 | } |
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| 39 | |
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| 40 | namespace { |
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| 41 | void HandleAttributes::previsit( ObjectDecl * decl ) { |
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| 42 | for ( Attribute * attr : decl->attributes ) { |
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| 43 | std::string name = attr->normalizedName(); |
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| 44 | if (name == "init_priority") { |
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| 45 | // TODO: implement C++-like init_priority attribute |
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| 46 | } |
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| 47 | } |
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| 48 | } |
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| 49 | |
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| 50 | void HandleAttributes::previsit( FunctionDecl * decl ) { |
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| 51 | for ( Attribute * attr : decl->attributes ) { |
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| 52 | std::string name = attr->normalizedName(); |
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| 53 | if (name == "constructor" || name == "destructor") { |
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| 54 | if (attr->parameters.size() == 1) { |
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| 55 | Expression *& arg = attr->parameters.front(); |
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| 56 | ResolvExpr::findSingleExpression( arg, new BasicType( Type::Qualifiers(), BasicType::LongLongSignedInt ), indexer ); |
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| 57 | auto result = eval(arg); |
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| 58 | if (! result.second) { |
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| 59 | SemanticWarning(attr->location, Warning::GccAttributes, |
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| 60 | toCString( name, " priorities must be integers from 0 to 65535 inclusive: ", arg ) ); |
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| 61 | return; |
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| 62 | } |
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| 63 | auto priority = result.first; |
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| 64 | if (priority < 101) { |
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| 65 | SemanticWarning(attr->location, Warning::GccAttributes, |
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| 66 | toCString( name, " priorities from 0 to 100 are reserved for the implementation" ) ); |
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| 67 | } else if (priority < 201 && ! buildingLibrary()) { |
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| 68 | SemanticWarning(attr->location, Warning::GccAttributes, |
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| 69 | toCString( name, " priorities from 101 to 200 are reserved for the implementation" ) ); |
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| 70 | } |
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| 71 | } else if (attr->parameters.size() > 1) { |
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| 72 | SemanticWarning(attr->location, Warning::GccAttributes, toCString( "too many arguments to ", name, " attribute" ) ); |
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| 73 | } else { |
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| 74 | SemanticWarning(attr->location, Warning::GccAttributes, toCString( "too few arguments to ", name, " attribute" ) ); |
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| 75 | } |
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| 76 | } |
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| 77 | } |
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| 78 | } |
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| 79 | } // namespace |
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| 80 | } // namespace Validate |
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| 81 | |
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| 82 | // Local Variables: // |
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| 83 | // tab-width: 4 // |
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| 84 | // mode: c++ // |
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| 85 | // compile-command: "make install" // |
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| 86 | // End: // |
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