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Parser - Progress on type checking prototype

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This commit is contained in:
Emmanuel BENOîT 2017-11-10 23:16:04 +01:00
parent d944ff80f3
commit 65cbebd150
1 changed files with 32 additions and 74 deletions
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106
parsercheck.cc
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@ -42,16 +42,6 @@ T_Array< T_SRDError > parserPrototypes(
T_Visitor< opast::A_Node > visitor{ ASTVisitorBrowser };
T_Array< T_SRDError > errors;
enum class E_DataType {
UNKNOWN ,
ALIAS ,
VARIABLE ,
FRAMEBUFFER ,
INPUT ,
PIPELINE ,
PROGRAM ,
TEXTURE ,
};
struct T_Decl_ {
E_DataType type;
T_SRDLocation location;
@ -60,8 +50,15 @@ T_Array< T_SRDError > parserPrototypes(
T_SRDLocation const& loc ) noexcept
: type( dt ) , location( loc )
{ }
T_Decl_( const E_DataType dt ) noexcept
: type( dt ) , location{}
{ }
};
T_KeyValueTable< T_String , T_Decl_ > type;
type.add( T_String::Pooled( "time" ) , T_Decl_{ E_DataType::BUILTIN } );
type.add( T_String::Pooled( "width" ) , T_Decl_{ E_DataType::BUILTIN } );
type.add( T_String::Pooled( "height" ) , T_Decl_{ E_DataType::BUILTIN } );
visitor.visit( *root , [&]( A_Node& node , bool exit ) -> bool {
if ( exit ) {
@ -71,79 +68,40 @@ T_Array< T_SRDError > parserPrototypes(
E_DataType dt{ E_DataType::UNKNOWN };
T_String id;
T_SRDLocation location;
switch ( node.type( ) ) {
case A_Node::OP_FRAMEBUFFER:
dt = E_DataType::FRAMEBUFFER;
id = dynamic_cast< T_FramebufferInstrNode& >( node ).id( );
location = dynamic_cast< T_FramebufferInstrNode& >( node ).idLocation( );
break;
case A_Node::OP_INPUT:
dt = E_DataType::INPUT;
id = dynamic_cast< T_InputInstrNode& >( node ).name( );
location = dynamic_cast< T_InputInstrNode& >( node ).nameLocation( );
break;
case A_Node::OP_PIPELINE:
dt = E_DataType::PIPELINE;
id = dynamic_cast< T_PipelineInstrNode& >( node ).id( );
location = dynamic_cast< T_PipelineInstrNode& >( node ).idLocation( );
break;
case A_Node::OP_PROGRAM:
dt = E_DataType::PROGRAM;
id = dynamic_cast< T_ProgramInstrNode& >( node ).id( );
location = dynamic_cast< T_ProgramInstrNode& >( node ).idLocation( );
break;
case A_Node::OP_SET:
if ( node.type( ) == A_Node::OP_SET ) {
dt = E_DataType::VARIABLE;
id = dynamic_cast< T_SetInstrNode& >( node ).id( );
location = dynamic_cast< T_SetInstrNode& >( node ).idLocation( );
break;
case A_Node::OP_TEXTURE:
dt = E_DataType::TEXTURE;
id = dynamic_cast< T_TextureInstrNode& >( node ).id( );
location = dynamic_cast< T_TextureInstrNode& >( node ).idLocation( );
break;
// TODO: samplers
default:
return !dynamic_cast< A_ExpressionNode* >( &node );
} else {
auto* np{ dynamic_cast< A_ResourceDefInstrNode* >( &node ) };
if ( !np ) {
return !dynamic_cast< A_ExpressionNode* >( &node );
}
dt = np->dataType( );
id = np->id( );
location = np->idLocation( );
}
assert( dt != E_DataType::UNKNOWN );
T_Decl_ const* const existing( type.get( id ) );
if ( !existing ) {
type.add( id , T_Decl_{ dt , location } );
} else if ( existing->type != dt ) {
T_StringBuilder sb;
sb << "'" << id << "' redeclared as ";
switch ( dt ) {
case E_DataType::VARIABLE: sb << "variable"; break;
case E_DataType::FRAMEBUFFER: sb << "framebuffer"; break;
case E_DataType::INPUT: sb << "input"; break;
case E_DataType::PIPELINE: sb << "pipeline"; break;
case E_DataType::PROGRAM: sb << "program"; break;
case E_DataType::TEXTURE: sb << "texture"; break;
default: std::abort( );
}
sb << "; previous declaration as ";
switch ( existing->type ) {
case E_DataType::VARIABLE: sb << "variable"; break;
case E_DataType::FRAMEBUFFER: sb << "framebuffer"; break;
case E_DataType::INPUT: sb << "input"; break;
case E_DataType::PIPELINE: sb << "pipeline"; break;
case E_DataType::PROGRAM: sb << "program"; break;
case E_DataType::TEXTURE: sb << "texture"; break;
default: std::abort( );
}
sb << " at " << existing->location;
errors.addNew( std::move( sb ) , location );
return false;
}
if ( existing->type == dt ) {
return false;
}
T_StringBuilder sb;
if ( existing->type == E_DataType::BUILTIN ) {
sb << "trying to redefine built-in variable " << id;
} else {
sb << "'" << id << "' redeclared as " << dt
<< "; previous declaration as "
<< existing->type << " at "
<< existing->location;
}
errors.addNew( std::move( sb ) , location );
return false;
} );