demotool/c-opmgr.cc

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#include "externals.hh"
#include "common.hh"
#include "c-opcomp.hh"
#include "c-ops.hh"
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#include <ebcl/Files.hh>
#include <ebcl/SRDIO.hh>
#include <ebcl/SRDText.hh>
/*============================================================================*/
namespace {
void WriteSRDError(
T_StringBuilder& sb ,
ebcl::T_SRDError const& error )
{
sb << error.location( ) << " - " << error.error( ) << "\n";
}
void DumpSRDErrors(
T_String const& header ,
T_Array< ebcl::T_SRDError > const& errors )
{
T_StringBuilder sb;
sb << "=============================================================\n"
<< header << '\n'
<< "-------------------------------------------------------------\n";
for ( auto& error : errors ) {
WriteSRDError( sb , error );
}
sb << "=============================================================\n" << '\0';
printf( "%s" , sb.data( ) );
}
} // namespace
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/*= T_ScriptManager ============================================================*/
T_ScriptManager::T_ScriptManager( ) noexcept
: watcher_( Common::Watcher( ) , [this](){
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loadScript( );
} ) ,
parser_( ) , compiler_( )
{
Common::Project( ).addListener( this );
}
T_ScriptManager::~T_ScriptManager( )
{
Common::Project( ).removeListener( this );
}
void T_ScriptManager::enable( ) noexcept
{
if ( !enabled_ ) {
enabled_ = true;
projectPathChanged( );
}
}
void T_ScriptManager::projectPathChanged( ) noexcept
{
path_ = Common::Project( ).pathOf( "demo.srd" );
if ( enabled_ ) {
watcher_.clear( );
watcher_.watch( path_.toString( ) );
loadScript( );
}
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}
/*----------------------------------------------------------------------------*/
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void T_ScriptManager::loadScript( ) noexcept
{
output_.clear( );
errors_.clear( );
using namespace ebcl;
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T_File input( path_.toString( ) , E_FileMode::READ_ONLY );
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try {
input.open( );
} catch ( X_StreamError const& e ) {
T_StringBuilder sb;
sb << "could not open: " << e.what( );
if ( e.code( ) == ebcl::E_StreamError::SYSTEM_ERROR ) {
sb << " (error code " << e.systemError( ) << ")";
}
errors_.addNew( std::move( sb ) ,
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T_SRDLocation{ path_.toString( ) , 1 , 1 } );
DumpSRDErrors( "Script not found" , errors_ );
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return;
}
// Load SRD data
T_SRDMemoryTarget srdOut;
srdOut.clearComments( true ).clearFlushToken( true );
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const auto fn{ path_.makeRelative( Common::Project( ).basePath( ) ) };
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try {
T_SRDTextReader srdReader{ srdOut };
T_FileInputStream fis{ input };
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srdReader.read( fn.toString( ) , fis );
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} catch ( X_StreamError const& e ) {
T_StringBuilder sb;
sb << "could not load: " << e.what( );
if ( e.code( ) == ebcl::E_StreamError::SYSTEM_ERROR ) {
sb << " (error code " << e.systemError( ) << ")";
}
errors_.addNew( std::move( sb ) ,
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T_SRDLocation{ path_.toString( ) , 1 , 1 } );
DumpSRDErrors( "Script not loaded" , errors_ );
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return;
} catch ( X_SRDErrors const& e ) {
T_StringBuilder sb;
const auto nErrors( e.errors.size( ) );
errors_.ensureCapacity( nErrors );
for ( auto i = 0u ; i < nErrors ; i ++ ) {
errors_.add( e.errors[ i ] );
}
DumpSRDErrors( "Script not loaded" , errors_ );
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return;
}
// Parse the fuck
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const bool parsed{ parser_.parse( path_ , srdOut.list( ) ) };
auto pOut{ parser_.result( ) };
const auto nf{ pOut->files.size( ) };
if ( nf ) {
watcher_.clear( );
for ( auto i = 0u ; i < nf ; i ++ ) {
watcher_.watch( pOut->files[ i ] );
}
}
if ( !parsed ) {
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errors_.addAll( parser_.errors( ) );
DumpSRDErrors( "Parse errors" , errors_ );
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return;
}
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output_ = compiler_.compile( *pOut );
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// FIXME - errors from compiler
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printf( "Script loaded & compiled\n" );
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}