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