1 |
/* |
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* Copyright (c) 2014-2016 Christian Schoenebeck and Andreas Persson |
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* |
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* http://www.linuxsampler.org |
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* |
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* This file is part of LinuxSampler and released under the same terms. |
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* See README file for details. |
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*/ |
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|
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/* Parser for NKSP real-time instrument script language. */ |
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|
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%{ |
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#define YYERROR_VERBOSE 1 |
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#include "parser_shared.h" |
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#include <string> |
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#include <map> |
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using namespace LinuxSampler; |
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|
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void InstrScript_error(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* err); |
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void InstrScript_warning(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* txt); |
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int InstrScript_lex(YYSTYPE* lvalp, YYLTYPE* llocp, void* scanner); |
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#define scanner context->scanner |
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#define PARSE_ERR(loc,txt) yyerror(&loc, context, txt) |
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#define PARSE_WRN(loc,txt) InstrScript_warning(&loc, context, txt) |
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%} |
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|
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// generate reentrant safe parser |
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%pure-parser |
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%parse-param { LinuxSampler::ParserContext* context } |
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%lex-param { void* scanner } |
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// avoid symbol collision with other (i.e. future) auto generated (f)lex scanners |
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%name-prefix "InstrScript_" |
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%locations |
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%defines |
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%error-verbose |
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|
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%token <iValue> INTEGER |
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%token <sValue> STRING |
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%token <sValue> IDENTIFIER |
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%token <sValue> VARIABLE |
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%token ON END INIT NOTE DECLARE ASSIGNMENT WHILE IF OR RELEASE AND ELSE |
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%token BITWISE_OR BITWISE_AND BITWISE_NOT |
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%token CONTROLLER SELECT CASE TO NOT CONST_ POLYPHONIC MOD |
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%token LE GE |
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|
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%type <nEventHandlers> script eventhandlers |
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%type <nEventHandler> eventhandler |
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%type <nStatements> statements body |
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%type <nStatement> statement assignment |
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%type <nFunctionCall> functioncall |
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%type <nArgs> args |
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%type <nExpression> arg expr logical_or_expr logical_and_expr bitwise_or_expr bitwise_and_expr rel_expr add_expr mul_expr unary_expr concat_expr |
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%type <nCaseBranch> caseclause |
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%type <nCaseBranches> caseclauses |
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|
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%start script |
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|
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%% |
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|
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script: |
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eventhandlers { |
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$$ = context->handlers = $1; |
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} |
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|
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eventhandlers: |
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eventhandler { |
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$$ = new EventHandlers(); |
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$$->add($1); |
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} |
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| eventhandlers eventhandler { |
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$$ = $1; |
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$$->add($2); |
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} |
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|
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eventhandler: |
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ON NOTE body END ON { |
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if (context->onNote) |
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PARSE_ERR(@2, "Redeclaration of 'note' event handler."); |
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context->onNote = new OnNote($3); |
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$$ = context->onNote; |
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} |
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| ON INIT body END ON { |
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if (context->onInit) |
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PARSE_ERR(@2, "Redeclaration of 'init' event handler."); |
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context->onInit = new OnInit($3); |
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$$ = context->onInit; |
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} |
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| ON RELEASE body END ON { |
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if (context->onRelease) |
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PARSE_ERR(@2, "Redeclaration of 'release' event handler."); |
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context->onRelease = new OnRelease($3); |
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$$ = context->onRelease; |
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} |
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| ON CONTROLLER body END ON { |
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if (context->onController) |
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PARSE_ERR(@2, "Redeclaration of 'controller' event handler."); |
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context->onController = new OnController($3); |
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$$ = context->onController; |
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} |
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|
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body: |
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/* epsilon (empty argument) */ { |
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$$ = new Statements(); |
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} |
105 |
| statements { |
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$$ = $1; |
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} |
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|
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statements: |
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statement { |
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$$ = new Statements(); |
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if ($1) { |
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if (!isNoOperation($1)) $$->add($1); // filter out NoOperation statements |
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} else |
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PARSE_WRN(@1, "Not a statement."); |
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} |
117 |
| statements statement { |
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$$ = $1; |
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if ($2) { |
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if (!isNoOperation($2)) $$->add($2); // filter out NoOperation statements |
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} else |
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PARSE_WRN(@2, "Not a statement."); |
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} |
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|
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statement: |
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functioncall { |
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$$ = $1; |
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} |
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| DECLARE VARIABLE { |
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const char* name = $2; |
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//printf("declared var '%s'\n", name); |
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if (context->variableByName(name)) |
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PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
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if (name[0] == '@') { |
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context->vartable[name] = new StringVariable(context); |
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$$ = new NoOperation; |
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} else { |
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context->vartable[name] = new IntVariable(context); |
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$$ = new NoOperation; |
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} |
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} |
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| DECLARE POLYPHONIC VARIABLE { |
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const char* name = $3; |
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//printf("declared polyphonic var '%s'\n", name); |
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if (context->variableByName(name)) |
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PARSE_ERR(@3, (String("Redeclaration of variable '") + name + "'.").c_str()); |
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if (name[0] != '$') { |
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PARSE_ERR(@3, "Polyphonic variables may only be declared as integers."); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
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context->vartable[name] = new PolyphonicIntVariable(context); |
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$$ = new NoOperation; |
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} |
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} |
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| DECLARE VARIABLE ASSIGNMENT expr { |
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const char* name = $2; |
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//printf("declared assign var '%s'\n", name); |
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if (context->variableByName(name)) |
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PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
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if ($4->exprType() == STRING_EXPR) { |
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if (name[0] == '$') |
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PARSE_WRN(@2, (String("Variable '") + name + "' declared as integer, string expression assigned though.").c_str()); |
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StringExprRef expr = $4; |
164 |
if (expr->isConstExpr()) { |
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const String s = expr->evalStr(); |
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StringVariableRef var = new StringVariable(context); |
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context->vartable[name] = var; |
168 |
$$ = new Assignment(var, new StringLiteral(s)); |
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} else { |
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StringVariableRef var = new StringVariable(context); |
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context->vartable[name] = var; |
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$$ = new Assignment(var, expr); |
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} |
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} else { |
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if (name[0] == '@') |
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PARSE_WRN(@2, (String("Variable '") + name + "' declared as string, integer expression assigned though.").c_str()); |
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IntExprRef expr = $4; |
178 |
if (expr->isConstExpr()) { |
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const int i = expr->evalInt(); |
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IntVariableRef var = new IntVariable(context); |
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context->vartable[name] = var; |
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$$ = new Assignment(var, new IntLiteral(i)); |
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} else { |
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IntVariableRef var = new IntVariable(context); |
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context->vartable[name] = var; |
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$$ = new Assignment(var, expr); |
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} |
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} |
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} |
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| DECLARE VARIABLE '[' expr ']' { |
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//printf("declare array without args\n"); |
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const char* name = $2; |
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if (!$4->isConstExpr()) { |
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PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else if ($4->exprType() != INT_EXPR) { |
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PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
199 |
} else if (context->variableByName(name)) { |
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PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
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IntExprRef expr = $4; |
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int size = expr->evalInt(); |
205 |
if (size <= 0) { |
206 |
PARSE_ERR(@4, (String("Array variable '") + name + "' declared with array size " + ToString(size) + ".").c_str()); |
207 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
209 |
context->vartable[name] = new IntArrayVariable(context, size); |
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$$ = new NoOperation; |
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} |
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} |
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} |
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| DECLARE VARIABLE '[' expr ']' ASSIGNMENT '(' args ')' { |
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const char* name = $2; |
216 |
if (!$4->isConstExpr()) { |
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PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str()); |
218 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
219 |
} else if ($4->exprType() != INT_EXPR) { |
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PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else if (context->variableByName(name)) { |
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PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
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IntExprRef sizeExpr = $4; |
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ArgsRef args = $8; |
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int size = sizeExpr->evalInt(); |
229 |
if (size <= 0) { |
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PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with positive array size.").c_str()); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
232 |
} else if (args->argsCount() > size) { |
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PARSE_ERR(@8, (String("Variable '") + name + |
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"' was declared with size " + ToString(size) + |
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" but " + ToString(args->argsCount()) + |
236 |
" values were assigned." ).c_str()); |
237 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
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bool argsOK = true; |
240 |
for (int i = 0; i < args->argsCount(); ++i) { |
241 |
if (args->arg(i)->exprType() != INT_EXPR) { |
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PARSE_ERR( |
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@8, |
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(String("Array variable '") + name + |
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"' declared with invalid assignment values. Assigned element " + |
246 |
ToString(i+1) + " is not an integer expression.").c_str() |
247 |
); |
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argsOK = false; |
249 |
break; |
250 |
} |
251 |
} |
252 |
if (argsOK) |
253 |
$$ = context->vartable[name] = new IntArrayVariable(context, size, args); |
254 |
else |
255 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
256 |
} |
257 |
} |
258 |
} |
259 |
| DECLARE CONST_ VARIABLE ASSIGNMENT expr { |
260 |
const char* name = $3; |
261 |
if ($5->exprType() == STRING_EXPR) { |
262 |
if (name[0] == '$') |
263 |
PARSE_WRN(@5, "Variable declared as integer, string expression assigned though."); |
264 |
String s; |
265 |
StringExprRef expr = $5; |
266 |
if (expr->isConstExpr()) |
267 |
s = expr->evalStr(); |
268 |
else |
269 |
PARSE_ERR(@5, (String("Assignment to const string variable '") + name + "' requires const expression.").c_str()); |
270 |
ConstStringVariableRef var = new ConstStringVariable(context, s); |
271 |
context->vartable[name] = var; |
272 |
//$$ = new Assignment(var, new StringLiteral(s)); |
273 |
$$ = new NoOperation(); |
274 |
} else { |
275 |
if (name[0] == '@') |
276 |
PARSE_WRN(@5, "Variable declared as string, integer expression assigned though."); |
277 |
int i = 0; |
278 |
IntExprRef expr = $5; |
279 |
if (expr->isConstExpr()) |
280 |
i = expr->evalInt(); |
281 |
else |
282 |
PARSE_ERR(@5, (String("Assignment to const integer variable '") + name + "' requires const expression.").c_str()); |
283 |
ConstIntVariableRef var = new ConstIntVariable(i); |
284 |
context->vartable[name] = var; |
285 |
//$$ = new Assignment(var, new IntLiteral(i)); |
286 |
$$ = new NoOperation(); |
287 |
} |
288 |
} |
289 |
| assignment { |
290 |
$$ = $1; |
291 |
} |
292 |
| WHILE '(' expr ')' statements END WHILE { |
293 |
if ($3->exprType() == INT_EXPR) { |
294 |
$$ = new While($3, $5); |
295 |
} else { |
296 |
PARSE_ERR(@3, "Condition for 'while' loops must be integer expression."); |
297 |
$$ = new While(new IntLiteral(0), $5); |
298 |
} |
299 |
} |
300 |
| IF '(' expr ')' statements ELSE statements END IF { |
301 |
$$ = new If($3, $5, $7); |
302 |
} |
303 |
| IF '(' expr ')' statements END IF { |
304 |
$$ = new If($3, $5); |
305 |
} |
306 |
| SELECT expr caseclauses END SELECT { |
307 |
if ($2->exprType() == INT_EXPR) { |
308 |
$$ = new SelectCase($2, $3); |
309 |
} else { |
310 |
PARSE_ERR(@2, "Statement 'select' can only by applied to integer expressions."); |
311 |
$$ = new SelectCase(new IntLiteral(0), $3); |
312 |
} |
313 |
} |
314 |
|
315 |
caseclauses: |
316 |
caseclause { |
317 |
$$ = CaseBranches(); |
318 |
$$.push_back($1); |
319 |
} |
320 |
| caseclauses caseclause { |
321 |
$$ = $1; |
322 |
$$.push_back($2); |
323 |
} |
324 |
|
325 |
caseclause: |
326 |
CASE INTEGER statements { |
327 |
$$ = CaseBranch(); |
328 |
$$.from = new IntLiteral($2); |
329 |
$$.statements = $3; |
330 |
} |
331 |
| CASE INTEGER TO INTEGER statements { |
332 |
$$ = CaseBranch(); |
333 |
$$.from = new IntLiteral($2); |
334 |
$$.to = new IntLiteral($4); |
335 |
$$.statements = $5; |
336 |
} |
337 |
|
338 |
functioncall: |
339 |
IDENTIFIER '(' args ')' { |
340 |
const char* name = $1; |
341 |
//printf("function call of '%s' with args\n", name); |
342 |
ArgsRef args = $3; |
343 |
VMFunction* fn = context->functionProvider->functionByName(name); |
344 |
if (!fn) { |
345 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
346 |
$$ = new FunctionCall(name, args, NULL); |
347 |
} else if (args->argsCount() < fn->minRequiredArgs()) { |
348 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
349 |
$$ = new FunctionCall(name, args, NULL); |
350 |
} else if (args->argsCount() > fn->maxAllowedArgs()) { |
351 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' accepts max. " + ToString(fn->maxAllowedArgs()) + " arguments.").c_str()); |
352 |
$$ = new FunctionCall(name, args, NULL); |
353 |
} else { |
354 |
bool argsOK = true; |
355 |
for (int i = 0; i < args->argsCount(); ++i) { |
356 |
if (args->arg(i)->exprType() != fn->argType(i) && !fn->acceptsArgType(i, args->arg(i)->exprType())) { |
357 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' expects " + typeStr(fn->argType(i)) + " type, but type " + typeStr(args->arg(i)->exprType()) + " was given instead.").c_str()); |
358 |
argsOK = false; |
359 |
break; |
360 |
} |
361 |
} |
362 |
$$ = new FunctionCall(name, args, argsOK ? fn : NULL); |
363 |
} |
364 |
} |
365 |
| IDENTIFIER '(' ')' { |
366 |
const char* name = $1; |
367 |
//printf("function call of '%s' (with empty args)\n", name); |
368 |
ArgsRef args = new Args; |
369 |
VMFunction* fn = context->functionProvider->functionByName(name); |
370 |
if (!fn) { |
371 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
372 |
$$ = new FunctionCall(name, args, NULL); |
373 |
} else if (fn->minRequiredArgs() > 0) { |
374 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
375 |
$$ = new FunctionCall(name, args, NULL); |
376 |
} else { |
377 |
$$ = new FunctionCall(name, args, fn); |
378 |
} |
379 |
} |
380 |
| IDENTIFIER { |
381 |
const char* name = $1; |
382 |
//printf("function call of '%s' (without args)\n", name); |
383 |
ArgsRef args = new Args; |
384 |
VMFunction* fn = context->functionProvider->functionByName(name); |
385 |
if (!fn) { |
386 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
387 |
$$ = new FunctionCall(name, args, NULL); |
388 |
} else if (fn->minRequiredArgs() > 0) { |
389 |
PARSE_ERR(@1, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
390 |
$$ = new FunctionCall(name, args, NULL); |
391 |
} else { |
392 |
$$ = new FunctionCall(name, args, fn); |
393 |
} |
394 |
} |
395 |
|
396 |
args: |
397 |
arg { |
398 |
$$ = new Args(); |
399 |
$$->add($1); |
400 |
} |
401 |
| args ',' arg { |
402 |
$$ = $1; |
403 |
$$->add($3); |
404 |
} |
405 |
|
406 |
arg: |
407 |
expr |
408 |
|
409 |
assignment: |
410 |
VARIABLE ASSIGNMENT expr { |
411 |
//printf("variable lookup with name '%s' as assignment expr\n", $1); |
412 |
const char* name = $1; |
413 |
VariableRef var = context->variableByName(name); |
414 |
if (!var) |
415 |
PARSE_ERR(@1, (String("Variable assignment: No variable declared with name '") + name + "'.").c_str()); |
416 |
else if (var->isConstExpr()) |
417 |
PARSE_ERR(@2, (String("Variable assignment: Cannot modify const variable '") + name + "'.").c_str()); |
418 |
else if (!var->isAssignable()) |
419 |
PARSE_ERR(@2, (String("Variable assignment: Variable '") + name + "' is not assignable.").c_str()); |
420 |
else if (var->exprType() != $3->exprType()) |
421 |
PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' is of type " + typeStr(var->exprType()) + ", assignment is of type " + typeStr($3->exprType()) + " though.").c_str()); |
422 |
$$ = new Assignment(var, $3); |
423 |
} |
424 |
| VARIABLE '[' expr ']' ASSIGNMENT expr { |
425 |
const char* name = $1; |
426 |
VariableRef var = context->variableByName(name); |
427 |
if (!var) |
428 |
PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str()); |
429 |
else if (var->exprType() != INT_ARR_EXPR) |
430 |
PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str()); |
431 |
else if ($3->exprType() != INT_EXPR) |
432 |
PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str()); |
433 |
else if ($6->exprType() != INT_EXPR) |
434 |
PARSE_ERR(@5, (String("Value assigned to array variable '") + name + "' must be an integer expression.").c_str()); |
435 |
IntArrayElementRef element = new IntArrayElement(var, $3); |
436 |
$$ = new Assignment(element, $6); |
437 |
} |
438 |
|
439 |
unary_expr: |
440 |
INTEGER { |
441 |
$$ = new IntLiteral($1); |
442 |
} |
443 |
| STRING { |
444 |
$$ = new StringLiteral($1); |
445 |
} |
446 |
| VARIABLE { |
447 |
//printf("variable lookup with name '%s' as unary expr\n", $1); |
448 |
VariableRef var = context->variableByName($1); |
449 |
if (var) |
450 |
$$ = var; |
451 |
else { |
452 |
PARSE_ERR(@1, (String("No variable declared with name '") + $1 + "'.").c_str()); |
453 |
$$ = new IntLiteral(0); |
454 |
} |
455 |
} |
456 |
| VARIABLE '[' expr ']' { |
457 |
const char* name = $1; |
458 |
VariableRef var = context->variableByName(name); |
459 |
if (!var) { |
460 |
PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str()); |
461 |
$$ = new IntLiteral(0); |
462 |
} else if (var->exprType() != INT_ARR_EXPR) { |
463 |
PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str()); |
464 |
$$ = new IntLiteral(0); |
465 |
} else if ($3->exprType() != INT_EXPR) { |
466 |
PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str()); |
467 |
$$ = new IntLiteral(0); |
468 |
} else { |
469 |
$$ = new IntArrayElement(var, $3); |
470 |
} |
471 |
} |
472 |
| '(' expr ')' { |
473 |
$$ = $2; |
474 |
} |
475 |
| functioncall { |
476 |
$$ = $1; |
477 |
} |
478 |
| '-' unary_expr { |
479 |
$$ = new Neg($2); |
480 |
} |
481 |
| BITWISE_NOT unary_expr { |
482 |
if ($2->exprType() != INT_EXPR) { |
483 |
PARSE_ERR(@2, (String("Right operand of bitwise operator '.not.' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str()); |
484 |
$$ = new IntLiteral(0); |
485 |
} else { |
486 |
$$ = new BitwiseNot($2); |
487 |
} |
488 |
} |
489 |
| NOT unary_expr { |
490 |
if ($2->exprType() != INT_EXPR) { |
491 |
PARSE_ERR(@2, (String("Right operand of operator 'not' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str()); |
492 |
$$ = new IntLiteral(0); |
493 |
} else { |
494 |
$$ = new Not($2); |
495 |
} |
496 |
} |
497 |
|
498 |
expr: |
499 |
concat_expr |
500 |
|
501 |
concat_expr: |
502 |
logical_or_expr |
503 |
| concat_expr '&' logical_or_expr { |
504 |
ExpressionRef lhs = $1; |
505 |
ExpressionRef rhs = $3; |
506 |
if (lhs->isConstExpr() && rhs->isConstExpr()) { |
507 |
$$ = new StringLiteral( |
508 |
lhs->evalCastToStr() + rhs->evalCastToStr() |
509 |
); |
510 |
} else { |
511 |
$$ = new ConcatString(lhs, rhs); |
512 |
} |
513 |
} |
514 |
|
515 |
logical_or_expr: |
516 |
logical_and_expr |
517 |
| logical_or_expr OR logical_and_expr { |
518 |
ExpressionRef lhs = $1; |
519 |
ExpressionRef rhs = $3; |
520 |
if (lhs->exprType() != INT_EXPR) { |
521 |
PARSE_ERR(@1, (String("Left operand of operator 'or' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
522 |
$$ = new IntLiteral(0); |
523 |
} else if (rhs->exprType() != INT_EXPR) { |
524 |
PARSE_ERR(@3, (String("Right operand of operator 'or' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
525 |
$$ = new IntLiteral(0); |
526 |
} else { |
527 |
$$ = new Or(lhs, rhs); |
528 |
} |
529 |
} |
530 |
|
531 |
logical_and_expr: |
532 |
bitwise_or_expr { |
533 |
$$ = $1; |
534 |
} |
535 |
| logical_and_expr AND bitwise_or_expr { |
536 |
ExpressionRef lhs = $1; |
537 |
ExpressionRef rhs = $3; |
538 |
if (lhs->exprType() != INT_EXPR) { |
539 |
PARSE_ERR(@1, (String("Left operand of operator 'and' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
540 |
$$ = new IntLiteral(0); |
541 |
} else if (rhs->exprType() != INT_EXPR) { |
542 |
PARSE_ERR(@3, (String("Right operand of operator 'and' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
543 |
$$ = new IntLiteral(0); |
544 |
} else { |
545 |
$$ = new And(lhs, rhs); |
546 |
} |
547 |
} |
548 |
|
549 |
bitwise_or_expr: |
550 |
bitwise_and_expr |
551 |
| bitwise_or_expr BITWISE_OR bitwise_and_expr { |
552 |
ExpressionRef lhs = $1; |
553 |
ExpressionRef rhs = $3; |
554 |
if (lhs->exprType() != INT_EXPR) { |
555 |
PARSE_ERR(@1, (String("Left operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
556 |
$$ = new IntLiteral(0); |
557 |
} else if (rhs->exprType() != INT_EXPR) { |
558 |
PARSE_ERR(@3, (String("Right operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
559 |
$$ = new IntLiteral(0); |
560 |
} else { |
561 |
$$ = new BitwiseOr(lhs, rhs); |
562 |
} |
563 |
} |
564 |
|
565 |
bitwise_and_expr: |
566 |
rel_expr { |
567 |
$$ = $1; |
568 |
} |
569 |
| bitwise_and_expr BITWISE_AND rel_expr { |
570 |
ExpressionRef lhs = $1; |
571 |
ExpressionRef rhs = $3; |
572 |
if (lhs->exprType() != INT_EXPR) { |
573 |
PARSE_ERR(@1, (String("Left operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
574 |
$$ = new IntLiteral(0); |
575 |
} else if (rhs->exprType() != INT_EXPR) { |
576 |
PARSE_ERR(@3, (String("Right operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
577 |
$$ = new IntLiteral(0); |
578 |
} else { |
579 |
$$ = new BitwiseAnd(lhs, rhs); |
580 |
} |
581 |
} |
582 |
|
583 |
rel_expr: |
584 |
add_expr |
585 |
| rel_expr '<' add_expr { |
586 |
ExpressionRef lhs = $1; |
587 |
ExpressionRef rhs = $3; |
588 |
if (lhs->exprType() != INT_EXPR) { |
589 |
PARSE_ERR(@1, (String("Left operand of operator '<' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
590 |
$$ = new IntLiteral(0); |
591 |
} else if (rhs->exprType() != INT_EXPR) { |
592 |
PARSE_ERR(@3, (String("Right operand of operator '<' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
593 |
$$ = new IntLiteral(0); |
594 |
} else { |
595 |
$$ = new Relation(lhs, Relation::LESS_THAN, rhs); |
596 |
} |
597 |
} |
598 |
| rel_expr '>' add_expr { |
599 |
ExpressionRef lhs = $1; |
600 |
ExpressionRef rhs = $3; |
601 |
if (lhs->exprType() != INT_EXPR) { |
602 |
PARSE_ERR(@1, (String("Left operand of operator '>' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
603 |
$$ = new IntLiteral(0); |
604 |
} else if (rhs->exprType() != INT_EXPR) { |
605 |
PARSE_ERR(@3, (String("Right operand of operator '>' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
606 |
$$ = new IntLiteral(0); |
607 |
} else { |
608 |
$$ = new Relation(lhs, Relation::GREATER_THAN, rhs); |
609 |
} |
610 |
} |
611 |
| rel_expr LE add_expr { |
612 |
ExpressionRef lhs = $1; |
613 |
ExpressionRef rhs = $3; |
614 |
if (lhs->exprType() != INT_EXPR) { |
615 |
PARSE_ERR(@1, (String("Left operand of operator '<=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
616 |
$$ = new IntLiteral(0); |
617 |
} else if (rhs->exprType() != INT_EXPR) { |
618 |
PARSE_ERR(@3, (String("Right operand of operator '<=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
619 |
$$ = new IntLiteral(0); |
620 |
} else { |
621 |
$$ = new Relation(lhs, Relation::LESS_OR_EQUAL, rhs); |
622 |
} |
623 |
} |
624 |
| rel_expr GE add_expr { |
625 |
ExpressionRef lhs = $1; |
626 |
ExpressionRef rhs = $3; |
627 |
if (lhs->exprType() != INT_EXPR) { |
628 |
PARSE_ERR(@1, (String("Left operand of operator '>=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
629 |
$$ = new IntLiteral(0); |
630 |
} else if (rhs->exprType() != INT_EXPR) { |
631 |
PARSE_ERR(@3, (String("Right operand of operator '>=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
632 |
$$ = new IntLiteral(0); |
633 |
} else { |
634 |
$$ = new Relation(lhs, Relation::GREATER_OR_EQUAL, rhs); |
635 |
} |
636 |
} |
637 |
| rel_expr '=' add_expr { |
638 |
$$ = new Relation($1, Relation::EQUAL, $3); |
639 |
} |
640 |
| rel_expr '#' add_expr { |
641 |
$$ = new Relation($1, Relation::NOT_EQUAL, $3); |
642 |
} |
643 |
|
644 |
add_expr: |
645 |
mul_expr |
646 |
| add_expr '+' mul_expr { |
647 |
ExpressionRef lhs = $1; |
648 |
ExpressionRef rhs = $3; |
649 |
if (lhs->exprType() != INT_EXPR) { |
650 |
PARSE_ERR(@1, (String("Left operand of operator '+' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
651 |
$$ = new IntLiteral(0); |
652 |
} else if (rhs->exprType() != INT_EXPR) { |
653 |
PARSE_ERR(@3, (String("Right operand of operator '+' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
654 |
$$ = new IntLiteral(0); |
655 |
} else { |
656 |
$$ = new Add(lhs,rhs); |
657 |
} |
658 |
} |
659 |
| add_expr '-' mul_expr { |
660 |
ExpressionRef lhs = $1; |
661 |
ExpressionRef rhs = $3; |
662 |
if (lhs->exprType() != INT_EXPR) { |
663 |
PARSE_ERR(@1, (String("Left operand of operator '-' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
664 |
$$ = new IntLiteral(0); |
665 |
} else if (rhs->exprType() != INT_EXPR) { |
666 |
PARSE_ERR(@3, (String("Right operand of operator '-' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
667 |
$$ = new IntLiteral(0); |
668 |
} else { |
669 |
$$ = new Sub(lhs,rhs); |
670 |
} |
671 |
} |
672 |
|
673 |
mul_expr: |
674 |
unary_expr |
675 |
| mul_expr '*' unary_expr { |
676 |
ExpressionRef lhs = $1; |
677 |
ExpressionRef rhs = $3; |
678 |
if (lhs->exprType() != INT_EXPR) { |
679 |
PARSE_ERR(@1, (String("Left operand of operator '*' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
680 |
$$ = new IntLiteral(0); |
681 |
} else if (rhs->exprType() != INT_EXPR) { |
682 |
PARSE_ERR(@3, (String("Right operand of operator '*' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
683 |
$$ = new IntLiteral(0); |
684 |
} else { |
685 |
$$ = new Mul(lhs,rhs); |
686 |
} |
687 |
} |
688 |
| mul_expr '/' unary_expr { |
689 |
ExpressionRef lhs = $1; |
690 |
ExpressionRef rhs = $3; |
691 |
if (lhs->exprType() != INT_EXPR) { |
692 |
PARSE_ERR(@1, (String("Left operand of operator '/' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
693 |
$$ = new IntLiteral(0); |
694 |
} else if (rhs->exprType() != INT_EXPR) { |
695 |
PARSE_ERR(@3, (String("Right operand of operator '/' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
696 |
$$ = new IntLiteral(0); |
697 |
} else { |
698 |
$$ = new Div(lhs,rhs); |
699 |
} |
700 |
} |
701 |
| mul_expr MOD unary_expr { |
702 |
ExpressionRef lhs = $1; |
703 |
ExpressionRef rhs = $3; |
704 |
if (lhs->exprType() != INT_EXPR) { |
705 |
PARSE_ERR(@1, (String("Left operand of modulo operator must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
706 |
$$ = new IntLiteral(0); |
707 |
} else if (rhs->exprType() != INT_EXPR) { |
708 |
PARSE_ERR(@3, (String("Right operand of modulo operator must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
709 |
$$ = new IntLiteral(0); |
710 |
} else { |
711 |
$$ = new Mod(lhs,rhs); |
712 |
} |
713 |
} |
714 |
|
715 |
%% |
716 |
|
717 |
void InstrScript_error(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* err) { |
718 |
//fprintf(stderr, "%d: %s\n", locp->first_line, err); |
719 |
context->addErr(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, err); |
720 |
} |
721 |
|
722 |
void InstrScript_warning(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* txt) { |
723 |
//fprintf(stderr, "WRN %d: %s\n", locp->first_line, txt); |
724 |
context->addWrn(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, txt); |
725 |
} |