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Parser - Prevent built-ins from being declared local

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This commit is contained in:
Emmanuel BENOîT 2017-11-11 12:03:41 +01:00
parent 4d54ffe9e8
commit 5933179f43
1 changed files with 20 additions and 4 deletions
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24
opparser.cc
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@ -210,7 +210,7 @@ struct T_ParserImpl_
M_DPARSER_( If );
M_DPARSER_( Input );
M_DPARSER_( Local );
M_DPARSER_( Locals );
M_DPARSER_( ODebug );
M_DPARSER_( Pipeline );
M_DPARSER_( Profile );
@ -684,6 +684,13 @@ void T_ParserImpl_::parseFunctionArguments(
continue;
}
T_String const& id( token.stringValue( ) );
if ( id == "time" || id == "width" || id == "height" ) {
errors.addNew( "cannot use built-in as argument" ,
token.location( ) );
continue;
}
const auto rv( function.addArgument( token ) );
if ( rv ) {
T_StringBuilder esb;
@ -733,7 +740,7 @@ void T_ParserImpl_::parseInstructions(
M_CASE_( FRAMEBUFFER , Framebuffer );
M_CASE_( IF , If );
M_CASE_( INPUT , Input );
M_CASE_( LOCALS , Local );
M_CASE_( LOCALS , Locals );
M_CASE_( ODBG , ODebug );
M_CASE_( PIPELINE , Pipeline );
M_CASE_( PROFILE , Profile );
@ -959,11 +966,12 @@ M_INSTR_( Input )
/*----------------------------------------------------------------------------*/
M_INSTR_( Local )
M_INSTR_( Locals )
{
const auto ni( input.size( ) );
if ( ni < 2 ) {
errors.addNew( "variable identifier expected" , input[ 0 ].location( ) );
errors.addNew( "variable identifier expected" ,
input[ 0 ].location( ) );
return;
}
@ -978,6 +986,14 @@ M_INSTR_( Local )
token.location( ) );
continue;
}
T_String const& id( token.stringValue( ) );
if ( id == "time" || id == "width" || id == "height" ) {
errors.addNew( "built-in cannot be declared local" ,
token.location( ) );
continue;
}
const auto prev{ instr.addVariable( token ) };
if ( !prev ) {
continue;