1 |
/* |
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* Copyright (c) 2014-2017 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_tnamerr(char* yyres, const char* yystr); |
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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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#define PARSE_DROP(loc) context->addPreprocessorComment(loc.first_line, loc.last_line, loc.first_column+1, loc.last_column+1); |
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#define yytnamerr(res,str) InstrScript_tnamerr(res, str) |
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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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// (NOTE: "=" is deprecated here with Bison 3.x, however removing it would cause an error with Bison 2.x) |
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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 "integer literal" |
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%token <iUnitValue> INTEGER_UNIT "integer literal with unit" |
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%token <sValue> STRING "string literal" |
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%token <sValue> IDENTIFIER "function name" |
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%token <sValue> VARIABLE "variable name" |
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%token ON "keyword 'on'" |
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%token END "keyword 'end'" |
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%token INIT "keyword 'init'" |
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%token NOTE "keyword 'note'" |
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%token RELEASE "keyword 'release'" |
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%token CONTROLLER "keyword 'controller'" |
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%token DECLARE "keyword 'declare'" |
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%token ASSIGNMENT "operator ':='" |
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%token CONST_ "keyword 'const'" |
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%token POLYPHONIC "keyword 'polyphonic'" |
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%token WHILE "keyword 'while'" |
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%token SYNCHRONIZED "keyword 'synchronized'" |
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%token IF "keyword 'if'" |
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%token ELSE "keyword 'else'" |
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%token SELECT "keyword 'select'" |
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%token CASE "keyword 'case'" |
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%token TO "keyword 'to'" |
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%token OR "operator 'or'" |
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%token AND "operator 'and'" |
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%token NOT "operator 'not'" |
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%token BITWISE_OR "bitwise operator '.or.'" |
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%token BITWISE_AND "bitwise operator '.and.'" |
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%token BITWISE_NOT "bitwise operator '.not.'" |
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%token FUNCTION "keyword 'function'" |
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%token CALL "keyword 'call'" |
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%token MOD "operator 'mod'" |
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%token LE "operator '<='" |
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%token GE "operator '>='" |
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%token END_OF_FILE 0 "end of file" |
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%token UNKNOWN_CHAR "unknown character" |
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|
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%type <nEventHandlers> script sections |
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%type <nEventHandler> section eventhandler |
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%type <nStatements> statements opt_statements userfunctioncall |
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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: |
92 |
sections { |
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$$ = context->handlers = $1; |
94 |
} |
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|
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sections: |
97 |
section { |
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$$ = new EventHandlers(); |
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if ($1) $$->add($1); |
100 |
} |
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| sections section { |
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$$ = $1; |
103 |
if ($2) $$->add($2); |
104 |
} |
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|
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section: |
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function_declaration { |
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$$ = EventHandlerRef(); |
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} |
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| eventhandler { |
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$$ = $1; |
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} |
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|
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eventhandler: |
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ON NOTE opt_statements END ON { |
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if (context->onNote) |
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PARSE_ERR(@2, "Redeclaration of 'note' event handler."); |
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context->onNote = new OnNote($3); |
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$$ = context->onNote; |
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} |
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| ON INIT opt_statements 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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$$ = context->onInit; |
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} |
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| ON RELEASE opt_statements END ON { |
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if (context->onRelease) |
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PARSE_ERR(@2, "Redeclaration of 'release' event handler."); |
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context->onRelease = new OnRelease($3); |
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$$ = context->onRelease; |
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} |
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| ON CONTROLLER opt_statements 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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$$ = context->onController; |
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} |
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|
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function_declaration: |
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FUNCTION IDENTIFIER opt_statements END FUNCTION { |
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const char* name = $2; |
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if (context->functionProvider->functionByName(name)) { |
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PARSE_ERR(@2, (String("There is already a built-in function with name '") + name + "'.").c_str()); |
145 |
} else if (context->userFunctionByName(name)) { |
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PARSE_ERR(@2, (String("There is already a user defined function with name '") + name + "'.").c_str()); |
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} else { |
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context->userFnTable[name] = $3; |
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} |
150 |
} |
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|
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opt_statements: |
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/* epsilon (empty argument) */ { |
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$$ = new Statements(); |
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} |
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| 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) { |
164 |
if (!isNoOperation($1)) $$->add($1); // filter out NoOperation statements |
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} else |
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PARSE_WRN(@1, "Not a statement."); |
167 |
} |
168 |
| statements statement { |
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$$ = $1; |
170 |
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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| userfunctioncall { |
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$$ = $1; |
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} |
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| DECLARE VARIABLE { |
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const char* name = $2; |
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//printf("declared var '%s'\n", name); |
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if (context->variableByName(name)) |
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PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
188 |
if (name[0] == '@') { |
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context->vartable[name] = new StringVariable(context); |
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$$ = new NoOperation; |
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} else { |
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context->vartable[name] = new IntVariable(context); |
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$$ = new NoOperation; |
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} |
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} |
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| DECLARE POLYPHONIC VARIABLE { |
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const char* name = $3; |
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//printf("declared polyphonic var '%s'\n", name); |
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if (context->variableByName(name)) |
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PARSE_ERR(@3, (String("Redeclaration of variable '") + name + "'.").c_str()); |
201 |
if (name[0] != '$') { |
202 |
PARSE_ERR(@3, "Polyphonic variables may only be declared as integers."); |
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$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
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} else { |
205 |
context->vartable[name] = new PolyphonicIntVariable(context); |
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$$ = new NoOperation; |
207 |
} |
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} |
209 |
| DECLARE VARIABLE ASSIGNMENT expr { |
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const char* name = $2; |
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//printf("declared assign var '%s'\n", name); |
212 |
if (context->variableByName(name)) |
213 |
PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
214 |
if ($4->exprType() == STRING_EXPR) { |
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if (name[0] == '$') |
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PARSE_WRN(@2, (String("Variable '") + name + "' declared as integer, string expression assigned though.").c_str()); |
217 |
StringExprRef expr = $4; |
218 |
if (expr->isConstExpr()) { |
219 |
const String s = expr->evalStr(); |
220 |
StringVariableRef var = new StringVariable(context); |
221 |
context->vartable[name] = var; |
222 |
$$ = new Assignment(var, new StringLiteral(s)); |
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} else { |
224 |
StringVariableRef var = new StringVariable(context); |
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context->vartable[name] = var; |
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$$ = new Assignment(var, expr); |
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} |
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} else { |
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if (name[0] == '@') |
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PARSE_WRN(@2, (String("Variable '") + name + "' declared as string, integer expression assigned though.").c_str()); |
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IntExprRef expr = $4; |
232 |
IntVariableRef var = new IntVariable(context); |
233 |
if (expr->isConstExpr()) { |
234 |
const vmint i = expr->evalInt(); |
235 |
$$ = new Assignment(var, new IntLiteral(i)); |
236 |
} else { |
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$$ = new Assignment(var, expr); |
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} |
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var->copyUnitFrom(expr); |
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var->setFinal(expr->isFinal()); |
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context->vartable[name] = var; |
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} |
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} |
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| DECLARE VARIABLE '[' expr ']' { |
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//printf("declare array without args\n"); |
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const char* name = $2; |
247 |
if (!$4->isConstExpr()) { |
248 |
PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str()); |
249 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
250 |
} else if ($4->exprType() != INT_EXPR) { |
251 |
PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str()); |
252 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
253 |
} else if (context->variableByName(name)) { |
254 |
PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
255 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
256 |
} else { |
257 |
IntExprRef expr = $4; |
258 |
if (expr->unitType() || expr->unitPrefix(0)) { |
259 |
PARSE_ERR(@4, "Units are not allowed as array size."); |
260 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
261 |
} else { |
262 |
if (expr->isFinal()) |
263 |
PARSE_WRN(@4, "Final operator '!' is meaningless here."); |
264 |
vmint size = expr->evalInt(); |
265 |
if (size <= 0) { |
266 |
PARSE_ERR(@4, (String("Array variable '") + name + "' declared with array size " + ToString(size) + ".").c_str()); |
267 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
268 |
} else { |
269 |
context->vartable[name] = new IntArrayVariable(context, size); |
270 |
$$ = new NoOperation; |
271 |
} |
272 |
} |
273 |
} |
274 |
} |
275 |
| DECLARE VARIABLE '[' expr ']' ASSIGNMENT '(' args ')' { |
276 |
const char* name = $2; |
277 |
if (!$4->isConstExpr()) { |
278 |
PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with constant array size.").c_str()); |
279 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
280 |
} else if ($4->exprType() != INT_EXPR) { |
281 |
PARSE_ERR(@4, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str()); |
282 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
283 |
} else if (context->variableByName(name)) { |
284 |
PARSE_ERR(@2, (String("Redeclaration of variable '") + name + "'.").c_str()); |
285 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
286 |
} else { |
287 |
IntExprRef sizeExpr = $4; |
288 |
ArgsRef args = $8; |
289 |
vmint size = sizeExpr->evalInt(); |
290 |
if (size <= 0) { |
291 |
PARSE_ERR(@4, (String("Array variable '") + name + "' must be declared with positive array size.").c_str()); |
292 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
293 |
} else if (args->argsCount() > size) { |
294 |
PARSE_ERR(@8, (String("Array variable '") + name + |
295 |
"' was declared with size " + ToString(size) + |
296 |
" but " + ToString(args->argsCount()) + |
297 |
" values were assigned." ).c_str()); |
298 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
299 |
} else if (sizeExpr->unitType() || sizeExpr->unitPrefix(0)) { |
300 |
PARSE_ERR(@4, "Units are not allowed as array size."); |
301 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
302 |
} else { |
303 |
if (sizeExpr->isFinal()) |
304 |
PARSE_WRN(@4, "Final operator '!' is meaningless here."); |
305 |
bool argsOK = true; |
306 |
for (vmint i = 0; i < args->argsCount(); ++i) { |
307 |
if (args->arg(i)->exprType() != INT_EXPR) { |
308 |
PARSE_ERR( |
309 |
@8, |
310 |
(String("Array variable '") + name + |
311 |
"' declared with invalid assignment values. Assigned element " + |
312 |
ToString(i+1) + " is not an integer expression.").c_str() |
313 |
); |
314 |
argsOK = false; |
315 |
break; |
316 |
} else if (args->arg(i)->asInt()->unitType() || |
317 |
args->arg(i)->asInt()->unitPrefix(0)) |
318 |
{ |
319 |
PARSE_ERR( |
320 |
@8, |
321 |
(String("Array variable '") + name + |
322 |
"' declared with invalid assignment values. Assigned element " + |
323 |
ToString(i+1) + " contains a unit.").c_str() |
324 |
); |
325 |
argsOK = false; |
326 |
break; |
327 |
} |
328 |
} |
329 |
if (argsOK) { |
330 |
context->vartable[name] = new IntArrayVariable(context, size, args); |
331 |
$$ = new NoOperation; |
332 |
} else |
333 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
334 |
} |
335 |
} |
336 |
} |
337 |
| DECLARE CONST_ VARIABLE '[' expr ']' ASSIGNMENT '(' args ')' { |
338 |
const char* name = $3; |
339 |
if (!$5->isConstExpr()) { |
340 |
PARSE_ERR(@5, (String("Array variable '") + name + "' must be declared with constant array size.").c_str()); |
341 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
342 |
} else if ($5->exprType() != INT_EXPR) { |
343 |
PARSE_ERR(@5, (String("Size of array variable '") + name + "' declared with non integer expression.").c_str()); |
344 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
345 |
} else if (context->variableByName(name)) { |
346 |
PARSE_ERR(@3, (String("Redeclaration of variable '") + name + "'.").c_str()); |
347 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
348 |
} else { |
349 |
IntExprRef sizeExpr = $5; |
350 |
ArgsRef args = $9; |
351 |
vmint size = sizeExpr->evalInt(); |
352 |
if (size <= 0) { |
353 |
PARSE_ERR(@5, (String("Array variable '") + name + "' must be declared with positive array size.").c_str()); |
354 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
355 |
} else if (args->argsCount() > size) { |
356 |
PARSE_ERR(@9, (String("Array variable '") + name + |
357 |
"' was declared with size " + ToString(size) + |
358 |
" but " + ToString(args->argsCount()) + |
359 |
" values were assigned." ).c_str()); |
360 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
361 |
} else if (sizeExpr->unitType() || sizeExpr->unitPrefix(0)) { |
362 |
PARSE_ERR(@5, "Units are not allowed as array size."); |
363 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
364 |
} else { |
365 |
if (sizeExpr->isFinal()) |
366 |
PARSE_WRN(@5, "Final operator '!' is meaningless here."); |
367 |
bool argsOK = true; |
368 |
for (vmint i = 0; i < args->argsCount(); ++i) { |
369 |
if (args->arg(i)->exprType() != INT_EXPR) { |
370 |
PARSE_ERR( |
371 |
@9, |
372 |
(String("Array variable '") + name + |
373 |
"' declared with invalid assignment values. Assigned element " + |
374 |
ToString(i+1) + " is not an integer expression.").c_str() |
375 |
); |
376 |
argsOK = false; |
377 |
break; |
378 |
} |
379 |
if (!args->arg(i)->isConstExpr()) { |
380 |
PARSE_ERR( |
381 |
@9, |
382 |
(String("const array variable '") + name + |
383 |
"' must be defined with const values. Assigned element " + |
384 |
ToString(i+1) + " is not a const expression though.").c_str() |
385 |
); |
386 |
argsOK = false; |
387 |
break; |
388 |
} else if (args->arg(i)->asInt()->unitType() || |
389 |
args->arg(i)->asInt()->unitPrefix(0)) |
390 |
{ |
391 |
PARSE_ERR( |
392 |
@9, |
393 |
(String("const array variable '") + name + |
394 |
"' declared with invalid assignment values. Assigned element " + |
395 |
ToString(i+1) + " contains a unit.").c_str() |
396 |
); |
397 |
argsOK = false; |
398 |
break; |
399 |
} |
400 |
} |
401 |
if (argsOK) { |
402 |
context->vartable[name] = new IntArrayVariable(context, size, args, true); |
403 |
$$ = new NoOperation; |
404 |
} else |
405 |
$$ = new FunctionCall("nothing", new Args, NULL); // whatever |
406 |
} |
407 |
} |
408 |
} |
409 |
| DECLARE CONST_ VARIABLE ASSIGNMENT expr { |
410 |
const char* name = $3; |
411 |
if ($5->exprType() == STRING_EXPR) { |
412 |
if (name[0] == '$') |
413 |
PARSE_WRN(@5, "Variable declared as integer, string expression assigned though."); |
414 |
String s; |
415 |
StringExprRef expr = $5; |
416 |
if (expr->isConstExpr()) |
417 |
s = expr->evalStr(); |
418 |
else |
419 |
PARSE_ERR(@5, (String("Assignment to const string variable '") + name + "' requires const expression.").c_str()); |
420 |
ConstStringVariableRef var = new ConstStringVariable(context, s); |
421 |
context->vartable[name] = var; |
422 |
//$$ = new Assignment(var, new StringLiteral(s)); |
423 |
$$ = new NoOperation(); |
424 |
} else { |
425 |
if (name[0] == '@') |
426 |
PARSE_WRN(@5, "Variable declared as string, integer expression assigned though."); |
427 |
vmint i = 0; |
428 |
IntExprRef expr = $5; |
429 |
if (expr->isConstExpr()) |
430 |
i = expr->evalInt(); |
431 |
else |
432 |
PARSE_ERR(@5, (String("Assignment to const integer variable '") + name + "' requires const expression.").c_str()); |
433 |
ConstIntVariableRef var = new ConstIntVariable(i); |
434 |
var->copyUnitFrom(expr); |
435 |
var->setFinal(expr->isFinal()); |
436 |
context->vartable[name] = var; |
437 |
//$$ = new Assignment(var, new IntLiteral(i)); |
438 |
$$ = new NoOperation(); |
439 |
} |
440 |
} |
441 |
| assignment { |
442 |
$$ = $1; |
443 |
} |
444 |
| WHILE '(' expr ')' opt_statements END WHILE { |
445 |
if ($3->exprType() == INT_EXPR) { |
446 |
IntExprRef expr = $3; |
447 |
if (expr->isFinal() && expr->isConstExpr()) |
448 |
PARSE_WRN(@3, "Final operator '!' is meaningless here."); |
449 |
$$ = new While(expr, $5); |
450 |
} else { |
451 |
PARSE_ERR(@3, "Condition for 'while' loops must be integer expression."); |
452 |
$$ = new While(new IntLiteral(0), $5); |
453 |
} |
454 |
} |
455 |
| SYNCHRONIZED opt_statements END SYNCHRONIZED { |
456 |
$$ = new SyncBlock($2); |
457 |
} |
458 |
| IF '(' expr ')' opt_statements ELSE opt_statements END IF { |
459 |
if ($3->exprType() == INT_EXPR) { |
460 |
IntExprRef expr = $3; |
461 |
if (expr->isFinal() && expr->isConstExpr()) |
462 |
PARSE_WRN(@3, "Final operator '!' is meaningless here."); |
463 |
$$ = new If($3, $5, $7); |
464 |
} else { |
465 |
PARSE_ERR(@3, "Condition for 'if' must be integer expression."); |
466 |
$$ = new If(new IntLiteral(0), $5, $7); |
467 |
} |
468 |
} |
469 |
| IF '(' expr ')' opt_statements END IF { |
470 |
if ($3->exprType() == INT_EXPR) { |
471 |
IntExprRef expr = $3; |
472 |
if (expr->isFinal() && expr->isConstExpr()) |
473 |
PARSE_WRN(@3, "Final operator '!' is meaningless here."); |
474 |
$$ = new If($3, $5); |
475 |
} else { |
476 |
PARSE_ERR(@3, "Condition for 'if' must be integer expression."); |
477 |
$$ = new If(new IntLiteral(0), $5); |
478 |
} |
479 |
} |
480 |
| SELECT expr caseclauses END SELECT { |
481 |
if ($2->exprType() == INT_EXPR) { |
482 |
IntExprRef expr = $2; |
483 |
if (expr->unitType() || expr->unitPrefix(0)) { |
484 |
PARSE_ERR(@2, "Units are not allowed here."); |
485 |
} else { |
486 |
if (expr->isFinal() && expr->isConstExpr()) |
487 |
PARSE_WRN(@2, "Final operator '!' is meaningless here."); |
488 |
$$ = new SelectCase(expr, $3); |
489 |
} |
490 |
} else { |
491 |
PARSE_ERR(@2, "Statement 'select' can only by applied to integer expressions."); |
492 |
$$ = new SelectCase(new IntLiteral(0), $3); |
493 |
} |
494 |
} |
495 |
|
496 |
caseclauses: |
497 |
caseclause { |
498 |
$$ = CaseBranches(); |
499 |
$$.push_back($1); |
500 |
} |
501 |
| caseclauses caseclause { |
502 |
$$ = $1; |
503 |
$$.push_back($2); |
504 |
} |
505 |
|
506 |
caseclause: |
507 |
CASE INTEGER opt_statements { |
508 |
$$ = CaseBranch(); |
509 |
$$.from = new IntLiteral($2); |
510 |
$$.statements = $3; |
511 |
} |
512 |
| CASE INTEGER TO INTEGER opt_statements { |
513 |
$$ = CaseBranch(); |
514 |
$$.from = new IntLiteral($2); |
515 |
$$.to = new IntLiteral($4); |
516 |
$$.statements = $5; |
517 |
} |
518 |
|
519 |
userfunctioncall: |
520 |
CALL IDENTIFIER { |
521 |
const char* name = $2; |
522 |
StatementsRef fn = context->userFunctionByName(name); |
523 |
if (context->functionProvider->functionByName(name)) { |
524 |
PARSE_ERR(@1, (String("Keyword 'call' must only be used for user defined functions, not for any built-in function like '") + name + "'.").c_str()); |
525 |
$$ = StatementsRef(); |
526 |
} else if (!fn) { |
527 |
PARSE_ERR(@2, (String("No user defined function with name '") + name + "'.").c_str()); |
528 |
$$ = StatementsRef(); |
529 |
} else { |
530 |
$$ = fn; |
531 |
} |
532 |
} |
533 |
|
534 |
functioncall: |
535 |
IDENTIFIER '(' args ')' { |
536 |
const char* name = $1; |
537 |
//printf("function call of '%s' with args\n", name); |
538 |
ArgsRef args = $3; |
539 |
VMFunction* fn = context->functionProvider->functionByName(name); |
540 |
if (context->userFunctionByName(name)) { |
541 |
PARSE_ERR(@1, (String("Missing 'call' keyword before user defined function name '") + name + "'.").c_str()); |
542 |
$$ = new FunctionCall(name, args, NULL); |
543 |
} else if (!fn) { |
544 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
545 |
$$ = new FunctionCall(name, args, NULL); |
546 |
} else if (context->functionProvider->isFunctionDisabled(fn,context)) { |
547 |
PARSE_DROP(@$); |
548 |
$$ = new NoFunctionCall; |
549 |
} else if (args->argsCount() < fn->minRequiredArgs()) { |
550 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
551 |
$$ = new FunctionCall(name, args, NULL); |
552 |
} else if (args->argsCount() > fn->maxAllowedArgs()) { |
553 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' accepts max. " + ToString(fn->maxAllowedArgs()) + " arguments.").c_str()); |
554 |
$$ = new FunctionCall(name, args, NULL); |
555 |
} else { |
556 |
bool argsOK = true; |
557 |
for (vmint i = 0; i < args->argsCount(); ++i) { |
558 |
if (args->arg(i)->exprType() != fn->argType(i) && !fn->acceptsArgType(i, args->arg(i)->exprType())) { |
559 |
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()); |
560 |
argsOK = false; |
561 |
break; |
562 |
} else if (fn->modifiesArg(i) && !args->arg(i)->isModifyable()) { |
563 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' expects an assignable variable.").c_str()); |
564 |
argsOK = false; |
565 |
break; |
566 |
} else if (args->arg(i)->exprType() == INT_EXPR && !fn->acceptsArgUnitType(i, args->arg(i)->asInt()->unitType())) { |
567 |
if (args->arg(i)->asInt()->unitType()) |
568 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' does not expect unit " + unitTypeStr(args->arg(i)->asInt()->unitType()) + ".").c_str()); |
569 |
else |
570 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' expects a unit.").c_str()); |
571 |
argsOK = false; |
572 |
break; |
573 |
} else if (!fn->acceptsArgUnitPrefix(i) && args->arg(i)->exprType() == INT_EXPR && args->arg(i)->asInt()->unitPrefix(0)) { |
574 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' does not expect a unit prefix.").c_str()); |
575 |
argsOK = false; |
576 |
break; |
577 |
} else if (!fn->acceptsArgFinal(i) && args->arg(i)->exprType() == INT_EXPR && args->arg(i)->asInt()->isFinal()) { |
578 |
PARSE_ERR(@3, (String("Argument ") + ToString(i+1) + " of built-in function '" + name + "' does not expect a \"final\" value.").c_str()); |
579 |
argsOK = false; |
580 |
break; |
581 |
} |
582 |
} |
583 |
$$ = new FunctionCall(name, args, argsOK ? fn : NULL); |
584 |
} |
585 |
} |
586 |
| IDENTIFIER '(' ')' { |
587 |
const char* name = $1; |
588 |
//printf("function call of '%s' (with empty args)\n", name); |
589 |
ArgsRef args = new Args; |
590 |
VMFunction* fn = context->functionProvider->functionByName(name); |
591 |
if (context->userFunctionByName(name)) { |
592 |
PARSE_ERR(@1, (String("Missing 'call' keyword before user defined function name '") + name + "'.").c_str()); |
593 |
$$ = new FunctionCall(name, args, NULL); |
594 |
} else if (!fn) { |
595 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
596 |
$$ = new FunctionCall(name, args, NULL); |
597 |
} else if (context->functionProvider->isFunctionDisabled(fn,context)) { |
598 |
PARSE_DROP(@$); |
599 |
$$ = new NoFunctionCall; |
600 |
} else if (fn->minRequiredArgs() > 0) { |
601 |
PARSE_ERR(@3, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
602 |
$$ = new FunctionCall(name, args, NULL); |
603 |
} else { |
604 |
$$ = new FunctionCall(name, args, fn); |
605 |
} |
606 |
} |
607 |
| IDENTIFIER { |
608 |
const char* name = $1; |
609 |
//printf("function call of '%s' (without args)\n", name); |
610 |
ArgsRef args = new Args; |
611 |
VMFunction* fn = context->functionProvider->functionByName(name); |
612 |
if (context->userFunctionByName(name)) { |
613 |
PARSE_ERR(@1, (String("Missing 'call' keyword before user defined function name '") + name + "'.").c_str()); |
614 |
$$ = new FunctionCall(name, args, NULL); |
615 |
} else if (!fn) { |
616 |
PARSE_ERR(@1, (String("No built-in function with name '") + name + "'.").c_str()); |
617 |
$$ = new FunctionCall(name, args, NULL); |
618 |
} else if (context->functionProvider->isFunctionDisabled(fn,context)) { |
619 |
PARSE_DROP(@$); |
620 |
$$ = new NoFunctionCall; |
621 |
} else if (fn->minRequiredArgs() > 0) { |
622 |
PARSE_ERR(@1, (String("Built-in function '") + name + "' requires at least " + ToString(fn->minRequiredArgs()) + " arguments.").c_str()); |
623 |
$$ = new FunctionCall(name, args, NULL); |
624 |
} else { |
625 |
$$ = new FunctionCall(name, args, fn); |
626 |
} |
627 |
} |
628 |
|
629 |
args: |
630 |
arg { |
631 |
$$ = new Args(); |
632 |
$$->add($1); |
633 |
} |
634 |
| args ',' arg { |
635 |
$$ = $1; |
636 |
$$->add($3); |
637 |
} |
638 |
|
639 |
arg: |
640 |
expr |
641 |
|
642 |
assignment: |
643 |
VARIABLE ASSIGNMENT expr { |
644 |
//printf("variable lookup with name '%s' as assignment expr\n", $1); |
645 |
const char* name = $1; |
646 |
VariableRef var = context->variableByName(name); |
647 |
if (!var) |
648 |
PARSE_ERR(@1, (String("Variable assignment: No variable declared with name '") + name + "'.").c_str()); |
649 |
else if (var->isConstExpr()) |
650 |
PARSE_ERR(@2, (String("Variable assignment: Cannot modify const variable '") + name + "'.").c_str()); |
651 |
else if (!var->isAssignable()) |
652 |
PARSE_ERR(@2, (String("Variable assignment: Variable '") + name + "' is not assignable.").c_str()); |
653 |
else if (var->exprType() != $3->exprType()) |
654 |
PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' is of type " + typeStr(var->exprType()) + ", assignment is of type " + typeStr($3->exprType()) + " though.").c_str()); |
655 |
else if (var->exprType() == INT_EXPR) { |
656 |
IntVariableRef intVar = var; |
657 |
IntExprRef expr = $3; |
658 |
if (intVar->unitType() != expr->unitType()) |
659 |
PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' has unit type " + unitTypeStr(intVar->unitType()) + ", assignment has unit type " + unitTypeStr(expr->unitType()) + " though.").c_str()); |
660 |
else if (intVar->unitFactor() != expr->unitFactor()) |
661 |
PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' has a different unit prefix.").c_str()); |
662 |
else if (intVar->isFinal() != expr->isFinal()) |
663 |
PARSE_ERR(@3, (String("Variable assignment: Variable '") + name + "' was declared as " + String(intVar->isFinal() ? "final" : "not final") + ", assignment is " + String(expr->isFinal() ? "final" : "not final") + " though.").c_str()); |
664 |
} |
665 |
$$ = new Assignment(var, $3); |
666 |
} |
667 |
| VARIABLE '[' expr ']' ASSIGNMENT expr { |
668 |
const char* name = $1; |
669 |
VariableRef var = context->variableByName(name); |
670 |
if (!var) |
671 |
PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str()); |
672 |
else if (var->exprType() != INT_ARR_EXPR) |
673 |
PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str()); |
674 |
else if (var->isConstExpr()) |
675 |
PARSE_ERR(@5, (String("Variable assignment: Cannot modify const array variable '") + name + "'.").c_str()); |
676 |
else if (!var->isAssignable()) |
677 |
PARSE_ERR(@5, (String("Variable assignment: Array variable '") + name + "' is not assignable.").c_str()); |
678 |
else if ($3->exprType() != INT_EXPR) |
679 |
PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str()); |
680 |
else if ($3->asInt()->unitType()) |
681 |
PARSE_ERR(@3, "Unit types are not allowed as array index."); |
682 |
else if ($6->exprType() != INT_EXPR) |
683 |
PARSE_ERR(@5, (String("Value assigned to array variable '") + name + "' must be an integer expression.").c_str()); |
684 |
else if ($6->asInt()->unitType()) |
685 |
PARSE_ERR(@6, "Unit types are not allowed for array variables."); |
686 |
else if ($6->asInt()->isFinal()) |
687 |
PARSE_ERR(@6, "Final operator '!' not allowed for array variables."); |
688 |
else if ($3->isConstExpr() && $3->asInt()->evalInt() >= ((IntArrayVariableRef)var)->arraySize()) |
689 |
PARSE_WRN(@3, (String("Index ") + ToString($3->asInt()->evalInt()) + |
690 |
" exceeds size of array variable '" + name + |
691 |
"' which was declared with size " + |
692 |
ToString(((IntArrayVariableRef)var)->arraySize()) + ".").c_str()); |
693 |
else if ($3->asInt()->isFinal()) |
694 |
PARSE_WRN(@3, "Final operator '!' is meaningless here."); |
695 |
IntArrayElementRef element = new IntArrayElement(var, $3); |
696 |
$$ = new Assignment(element, $6); |
697 |
} |
698 |
|
699 |
unary_expr: |
700 |
INTEGER { |
701 |
$$ = new IntLiteral($1); |
702 |
} |
703 |
| INTEGER_UNIT { |
704 |
IntLiteralRef literal = new IntLiteral($1.iValue); |
705 |
literal->setUnit($1.prefix, $1.unit); |
706 |
$$ = literal; |
707 |
} |
708 |
| STRING { |
709 |
$$ = new StringLiteral($1); |
710 |
} |
711 |
| VARIABLE { |
712 |
//printf("variable lookup with name '%s' as unary expr\n", $1); |
713 |
VariableRef var = context->variableByName($1); |
714 |
if (var) |
715 |
$$ = var; |
716 |
else { |
717 |
PARSE_ERR(@1, (String("No variable declared with name '") + $1 + "'.").c_str()); |
718 |
$$ = new IntLiteral(0); |
719 |
} |
720 |
} |
721 |
| VARIABLE '[' expr ']' { |
722 |
const char* name = $1; |
723 |
VariableRef var = context->variableByName(name); |
724 |
if (!var) { |
725 |
PARSE_ERR(@1, (String("No variable declared with name '") + name + "'.").c_str()); |
726 |
$$ = new IntLiteral(0); |
727 |
} else if (var->exprType() != INT_ARR_EXPR) { |
728 |
PARSE_ERR(@2, (String("Variable '") + name + "' is not an array variable.").c_str()); |
729 |
$$ = new IntLiteral(0); |
730 |
} else if ($3->exprType() != INT_EXPR) { |
731 |
PARSE_ERR(@3, (String("Array variable '") + name + "' accessed with non integer expression.").c_str()); |
732 |
$$ = new IntLiteral(0); |
733 |
} else if ($3->asInt()->unitType() || $3->asInt()->unitPrefix(0)) { |
734 |
PARSE_ERR(@3, "Units are not allowed as array index."); |
735 |
$$ = new IntLiteral(0); |
736 |
} else { |
737 |
if ($3->isConstExpr() && $3->asInt()->evalInt() >= ((IntArrayVariableRef)var)->arraySize()) |
738 |
PARSE_WRN(@3, (String("Index ") + ToString($3->asInt()->evalInt()) + |
739 |
" exceeds size of array variable '" + name + |
740 |
"' which was declared with size " + |
741 |
ToString(((IntArrayVariableRef)var)->arraySize()) + ".").c_str()); |
742 |
else if ($3->asInt()->isFinal()) |
743 |
PARSE_WRN(@3, "Final operator '!' is meaningless here."); |
744 |
$$ = new IntArrayElement(var, $3); |
745 |
} |
746 |
} |
747 |
| '(' expr ')' { |
748 |
$$ = $2; |
749 |
} |
750 |
| functioncall { |
751 |
$$ = $1; |
752 |
} |
753 |
| '-' unary_expr { |
754 |
$$ = new Neg($2); |
755 |
} |
756 |
| BITWISE_NOT unary_expr { |
757 |
if ($2->exprType() != INT_EXPR) { |
758 |
PARSE_ERR(@2, (String("Right operand of bitwise operator '.not.' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str()); |
759 |
$$ = new IntLiteral(0); |
760 |
} else if ($2->asInt()->unitType() || $2->asInt()->unitPrefix(0)) { |
761 |
PARSE_ERR(@2, "Units are not allowed for operands of bitwise operations."); |
762 |
$$ = new IntLiteral(0); |
763 |
} else { |
764 |
$$ = new BitwiseNot($2); |
765 |
} |
766 |
} |
767 |
| NOT unary_expr { |
768 |
if ($2->exprType() != INT_EXPR) { |
769 |
PARSE_ERR(@2, (String("Right operand of operator 'not' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str()); |
770 |
$$ = new IntLiteral(0); |
771 |
} else if ($2->asInt()->unitType() || $2->asInt()->unitPrefix(0)) { |
772 |
PARSE_ERR(@2, "Units are not allowed for operands of logical operations."); |
773 |
$$ = new IntLiteral(0); |
774 |
} else { |
775 |
$$ = new Not($2); |
776 |
} |
777 |
} |
778 |
| '!' unary_expr { |
779 |
if ($2->exprType() != INT_EXPR) { |
780 |
PARSE_ERR(@2, (String("Right operand of \"final\" operator '!' must be an integer expression, is ") + typeStr($2->exprType()) + " though.").c_str()); |
781 |
$$ = new IntLiteral(0); |
782 |
} else { |
783 |
$$ = new Final($2); |
784 |
} |
785 |
} |
786 |
|
787 |
expr: |
788 |
concat_expr |
789 |
|
790 |
concat_expr: |
791 |
logical_or_expr |
792 |
| concat_expr '&' logical_or_expr { |
793 |
ExpressionRef lhs = $1; |
794 |
ExpressionRef rhs = $3; |
795 |
if (lhs->isConstExpr() && rhs->isConstExpr()) { |
796 |
$$ = new StringLiteral( |
797 |
lhs->evalCastToStr() + rhs->evalCastToStr() |
798 |
); |
799 |
} else { |
800 |
$$ = new ConcatString(lhs, rhs); |
801 |
} |
802 |
} |
803 |
|
804 |
logical_or_expr: |
805 |
logical_and_expr |
806 |
| logical_or_expr OR logical_and_expr { |
807 |
ExpressionRef lhs = $1; |
808 |
ExpressionRef rhs = $3; |
809 |
if (lhs->exprType() != INT_EXPR) { |
810 |
PARSE_ERR(@1, (String("Left operand of operator 'or' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
811 |
$$ = new IntLiteral(0); |
812 |
} else if (rhs->exprType() != INT_EXPR) { |
813 |
PARSE_ERR(@3, (String("Right operand of operator 'or' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
814 |
$$ = new IntLiteral(0); |
815 |
} else if (lhs->asInt()->unitType() || lhs->asInt()->unitPrefix(0)) { |
816 |
PARSE_ERR(@1, "Units are not allowed for operands of logical operations."); |
817 |
$$ = new IntLiteral(0); |
818 |
} else if (rhs->asInt()->unitType() || rhs->asInt()->unitPrefix(0)) { |
819 |
PARSE_ERR(@3, "Units are not allowed for operands of logical operations."); |
820 |
$$ = new IntLiteral(0); |
821 |
} else { |
822 |
$$ = new Or(lhs, rhs); |
823 |
} |
824 |
} |
825 |
|
826 |
logical_and_expr: |
827 |
bitwise_or_expr { |
828 |
$$ = $1; |
829 |
} |
830 |
| logical_and_expr AND bitwise_or_expr { |
831 |
ExpressionRef lhs = $1; |
832 |
ExpressionRef rhs = $3; |
833 |
if (lhs->exprType() != INT_EXPR) { |
834 |
PARSE_ERR(@1, (String("Left operand of operator 'and' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
835 |
$$ = new IntLiteral(0); |
836 |
} else if (rhs->exprType() != INT_EXPR) { |
837 |
PARSE_ERR(@3, (String("Right operand of operator 'and' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
838 |
$$ = new IntLiteral(0); |
839 |
} else if (lhs->asInt()->unitType() || lhs->asInt()->unitPrefix(0)) { |
840 |
PARSE_ERR(@1, "Units are not allowed for operands of logical operations."); |
841 |
$$ = new IntLiteral(0); |
842 |
} else if (rhs->asInt()->unitType() || rhs->asInt()->unitPrefix(0)) { |
843 |
PARSE_ERR(@3, "Units are not allowed for operands of logical operations."); |
844 |
$$ = new IntLiteral(0); |
845 |
} else { |
846 |
$$ = new And(lhs, rhs); |
847 |
} |
848 |
} |
849 |
|
850 |
bitwise_or_expr: |
851 |
bitwise_and_expr |
852 |
| bitwise_or_expr BITWISE_OR bitwise_and_expr { |
853 |
ExpressionRef lhs = $1; |
854 |
ExpressionRef rhs = $3; |
855 |
if (lhs->exprType() != INT_EXPR) { |
856 |
PARSE_ERR(@1, (String("Left operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
857 |
$$ = new IntLiteral(0); |
858 |
} else if (rhs->exprType() != INT_EXPR) { |
859 |
PARSE_ERR(@3, (String("Right operand of bitwise operator '.or.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
860 |
$$ = new IntLiteral(0); |
861 |
} else if (lhs->asInt()->unitType() || lhs->asInt()->unitPrefix(0)) { |
862 |
PARSE_ERR(@1, "Units are not allowed for operands of bitwise operations."); |
863 |
$$ = new IntLiteral(0); |
864 |
} else if (rhs->asInt()->unitType() || rhs->asInt()->unitPrefix(0)) { |
865 |
PARSE_ERR(@3, "Units are not allowed for operands of bitwise operations."); |
866 |
$$ = new IntLiteral(0); |
867 |
} else { |
868 |
$$ = new BitwiseOr(lhs, rhs); |
869 |
} |
870 |
} |
871 |
|
872 |
bitwise_and_expr: |
873 |
rel_expr { |
874 |
$$ = $1; |
875 |
} |
876 |
| bitwise_and_expr BITWISE_AND rel_expr { |
877 |
ExpressionRef lhs = $1; |
878 |
ExpressionRef rhs = $3; |
879 |
if (lhs->exprType() != INT_EXPR) { |
880 |
PARSE_ERR(@1, (String("Left operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
881 |
$$ = new IntLiteral(0); |
882 |
} else if (rhs->exprType() != INT_EXPR) { |
883 |
PARSE_ERR(@3, (String("Right operand of bitwise operator '.and.' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
884 |
$$ = new IntLiteral(0); |
885 |
} else if (lhs->asInt()->unitType() || lhs->asInt()->unitPrefix(0)) { |
886 |
PARSE_ERR(@1, "Units are not allowed for operands of bitwise operations."); |
887 |
$$ = new IntLiteral(0); |
888 |
} else if (rhs->asInt()->unitType() || rhs->asInt()->unitPrefix(0)) { |
889 |
PARSE_ERR(@3, "Units are not allowed for operands of bitwise operations."); |
890 |
$$ = new IntLiteral(0); |
891 |
} else { |
892 |
$$ = new BitwiseAnd(lhs, rhs); |
893 |
} |
894 |
} |
895 |
|
896 |
rel_expr: |
897 |
add_expr |
898 |
| rel_expr '<' add_expr { |
899 |
ExpressionRef lhs = $1; |
900 |
ExpressionRef rhs = $3; |
901 |
if (lhs->exprType() != INT_EXPR) { |
902 |
PARSE_ERR(@1, (String("Left operand of operator '<' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
903 |
$$ = new IntLiteral(0); |
904 |
} else if (rhs->exprType() != INT_EXPR) { |
905 |
PARSE_ERR(@3, (String("Right operand of operator '<' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
906 |
$$ = new IntLiteral(0); |
907 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
908 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
909 |
{ |
910 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
911 |
$$ = new IntLiteral(0); |
912 |
} else { |
913 |
$$ = new Relation(lhs, Relation::LESS_THAN, rhs); |
914 |
} |
915 |
} |
916 |
| rel_expr '>' add_expr { |
917 |
ExpressionRef lhs = $1; |
918 |
ExpressionRef rhs = $3; |
919 |
if (lhs->exprType() != INT_EXPR) { |
920 |
PARSE_ERR(@1, (String("Left operand of operator '>' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
921 |
$$ = new IntLiteral(0); |
922 |
} else if (rhs->exprType() != INT_EXPR) { |
923 |
PARSE_ERR(@3, (String("Right operand of operator '>' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
924 |
$$ = new IntLiteral(0); |
925 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
926 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
927 |
{ |
928 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
929 |
$$ = new IntLiteral(0); |
930 |
} else { |
931 |
$$ = new Relation(lhs, Relation::GREATER_THAN, rhs); |
932 |
} |
933 |
} |
934 |
| rel_expr LE add_expr { |
935 |
ExpressionRef lhs = $1; |
936 |
ExpressionRef rhs = $3; |
937 |
if (lhs->exprType() != INT_EXPR) { |
938 |
PARSE_ERR(@1, (String("Left operand of operator '<=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
939 |
$$ = new IntLiteral(0); |
940 |
} else if (rhs->exprType() != INT_EXPR) { |
941 |
PARSE_ERR(@3, (String("Right operand of operator '<=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
942 |
$$ = new IntLiteral(0); |
943 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
944 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
945 |
{ |
946 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
947 |
$$ = new IntLiteral(0); |
948 |
} else { |
949 |
$$ = new Relation(lhs, Relation::LESS_OR_EQUAL, rhs); |
950 |
} |
951 |
} |
952 |
| rel_expr GE add_expr { |
953 |
ExpressionRef lhs = $1; |
954 |
ExpressionRef rhs = $3; |
955 |
if (lhs->exprType() != INT_EXPR) { |
956 |
PARSE_ERR(@1, (String("Left operand of operator '>=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
957 |
$$ = new IntLiteral(0); |
958 |
} else if (rhs->exprType() != INT_EXPR) { |
959 |
PARSE_ERR(@3, (String("Right operand of operator '>=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
960 |
$$ = new IntLiteral(0); |
961 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
962 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
963 |
{ |
964 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
965 |
$$ = new IntLiteral(0); |
966 |
} else { |
967 |
$$ = new Relation(lhs, Relation::GREATER_OR_EQUAL, rhs); |
968 |
} |
969 |
} |
970 |
| rel_expr '=' add_expr { |
971 |
ExpressionRef lhs = $1; |
972 |
ExpressionRef rhs = $3; |
973 |
if (lhs->exprType() != INT_EXPR) { |
974 |
PARSE_ERR(@1, (String("Left operand of operator '=' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
975 |
$$ = new IntLiteral(0); |
976 |
} else if (rhs->exprType() != INT_EXPR) { |
977 |
PARSE_ERR(@3, (String("Right operand of operator '=' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
978 |
$$ = new IntLiteral(0); |
979 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
980 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
981 |
{ |
982 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
983 |
$$ = new IntLiteral(0); |
984 |
} else { |
985 |
$$ = new Relation(lhs, Relation::EQUAL, rhs); |
986 |
} |
987 |
} |
988 |
| rel_expr '#' add_expr { |
989 |
ExpressionRef lhs = $1; |
990 |
ExpressionRef rhs = $3; |
991 |
if (lhs->exprType() != INT_EXPR) { |
992 |
PARSE_ERR(@1, (String("Left operand of operator '#' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
993 |
$$ = new IntLiteral(0); |
994 |
} else if (rhs->exprType() != INT_EXPR) { |
995 |
PARSE_ERR(@3, (String("Right operand of operator '#' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
996 |
$$ = new IntLiteral(0); |
997 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
998 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
999 |
{ |
1000 |
PARSE_ERR(@2, "Operands of relative operations must have same unit."); |
1001 |
$$ = new IntLiteral(0); |
1002 |
} else { |
1003 |
$$ = new Relation(lhs, Relation::NOT_EQUAL, rhs); |
1004 |
} |
1005 |
} |
1006 |
|
1007 |
add_expr: |
1008 |
mul_expr |
1009 |
| add_expr '+' mul_expr { |
1010 |
ExpressionRef lhs = $1; |
1011 |
ExpressionRef rhs = $3; |
1012 |
if (lhs->exprType() != INT_EXPR) { |
1013 |
PARSE_ERR(@1, (String("Left operand of operator '+' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
1014 |
$$ = new IntLiteral(0); |
1015 |
} else if (rhs->exprType() != INT_EXPR) { |
1016 |
PARSE_ERR(@3, (String("Right operand of operator '+' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
1017 |
$$ = new IntLiteral(0); |
1018 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
1019 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
1020 |
{ |
1021 |
PARSE_ERR(@2, "Operands of '+' operations must have same unit."); |
1022 |
$$ = new IntLiteral(0); |
1023 |
} else { |
1024 |
$$ = new Add(lhs,rhs); |
1025 |
} |
1026 |
} |
1027 |
| add_expr '-' mul_expr { |
1028 |
ExpressionRef lhs = $1; |
1029 |
ExpressionRef rhs = $3; |
1030 |
if (lhs->exprType() != INT_EXPR) { |
1031 |
PARSE_ERR(@1, (String("Left operand of operator '-' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
1032 |
$$ = new IntLiteral(0); |
1033 |
} else if (rhs->exprType() != INT_EXPR) { |
1034 |
PARSE_ERR(@3, (String("Right operand of operator '-' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
1035 |
$$ = new IntLiteral(0); |
1036 |
} else if (lhs->asInt()->unitType() != rhs->asInt()->unitType() || |
1037 |
lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor()) |
1038 |
{ |
1039 |
PARSE_ERR(@2, "Operands of '-' operations must have same unit."); |
1040 |
$$ = new IntLiteral(0); |
1041 |
} else { |
1042 |
$$ = new Sub(lhs,rhs); |
1043 |
} |
1044 |
} |
1045 |
|
1046 |
mul_expr: |
1047 |
unary_expr |
1048 |
| mul_expr '*' unary_expr { |
1049 |
ExpressionRef lhs = $1; |
1050 |
ExpressionRef rhs = $3; |
1051 |
if (lhs->exprType() != INT_EXPR) { |
1052 |
PARSE_ERR(@1, (String("Left operand of operator '*' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
1053 |
$$ = new IntLiteral(0); |
1054 |
} else if (rhs->exprType() != INT_EXPR) { |
1055 |
PARSE_ERR(@3, (String("Right operand of operator '*' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
1056 |
$$ = new IntLiteral(0); |
1057 |
} else if (lhs->asInt()->unitType() && rhs->asInt()->unitType()) { |
1058 |
PARSE_ERR(@2, "Only one operand of operator '*' may have a unit type"); |
1059 |
$$ = new IntLiteral(0); |
1060 |
} else if (lhs->asInt()->unitPrefix(0) && rhs->asInt()->unitPrefix(0)) { |
1061 |
PARSE_ERR(@2, "Only one operand of operator '*' may have a unit prefix"); |
1062 |
$$ = new IntLiteral(0); |
1063 |
} else { |
1064 |
$$ = new Mul(lhs,rhs); |
1065 |
} |
1066 |
} |
1067 |
| mul_expr '/' unary_expr { |
1068 |
ExpressionRef lhs = $1; |
1069 |
ExpressionRef rhs = $3; |
1070 |
if (lhs->exprType() != INT_EXPR) { |
1071 |
PARSE_ERR(@1, (String("Left operand of operator '/' must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
1072 |
$$ = new IntLiteral(0); |
1073 |
} else if (rhs->exprType() != INT_EXPR) { |
1074 |
PARSE_ERR(@3, (String("Right operand of operator '/' must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
1075 |
$$ = new IntLiteral(0); |
1076 |
} else if (lhs->asInt()->unitType() && rhs->asInt()->unitType() && |
1077 |
lhs->asInt()->unitType() != rhs->asInt()->unitType()) |
1078 |
{ |
1079 |
PARSE_ERR(@2, "Operands of operator '/' with two different unit types."); |
1080 |
$$ = new IntLiteral(0); |
1081 |
} else if (!lhs->asInt()->unitType() && rhs->asInt()->unitType()) { |
1082 |
PARSE_ERR(@3, ("Dividing left operand without any unit type by right operand with unit type " + typeStr(rhs->exprType()) + " is not possible.").c_str()); |
1083 |
$$ = new IntLiteral(0); |
1084 |
} else if (lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor() && |
1085 |
lhs->asInt()->unitPrefix(0) && rhs->asInt()->unitPrefix(0)) |
1086 |
{ |
1087 |
PARSE_ERR(@2, "Dividing two operands with two different unit prefixes is not possible."); |
1088 |
$$ = new IntLiteral(0); |
1089 |
} else if (lhs->asInt()->unitFactor() != rhs->asInt()->unitFactor() && |
1090 |
rhs->asInt()->unitPrefix(0)) |
1091 |
{ |
1092 |
PARSE_ERR(@3, "Dividing left operand without any unit prefix by right operand with unit prefix is not possible."); |
1093 |
$$ = new IntLiteral(0); |
1094 |
} else { |
1095 |
$$ = new Div(lhs,rhs); |
1096 |
} |
1097 |
} |
1098 |
| mul_expr MOD unary_expr { |
1099 |
ExpressionRef lhs = $1; |
1100 |
ExpressionRef rhs = $3; |
1101 |
if (lhs->exprType() != INT_EXPR) { |
1102 |
PARSE_ERR(@1, (String("Left operand of modulo operator must be an integer expression, is ") + typeStr(lhs->exprType()) + " though.").c_str()); |
1103 |
$$ = new IntLiteral(0); |
1104 |
} else if (rhs->exprType() != INT_EXPR) { |
1105 |
PARSE_ERR(@3, (String("Right operand of modulo operator must be an integer expression, is ") + typeStr(rhs->exprType()) + " though.").c_str()); |
1106 |
$$ = new IntLiteral(0); |
1107 |
} else { |
1108 |
if (lhs->asInt()->unitType() || lhs->asInt()->unitPrefix(0)) |
1109 |
PARSE_ERR(@1, "Operands of modulo operator must not use any unit."); |
1110 |
if (rhs->asInt()->unitType() || rhs->asInt()->unitPrefix(0)) |
1111 |
PARSE_ERR(@3, "Operands of modulo operator must not use any unit."); |
1112 |
$$ = new Mod(lhs,rhs); |
1113 |
} |
1114 |
} |
1115 |
|
1116 |
%% |
1117 |
|
1118 |
void InstrScript_error(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* err) { |
1119 |
//fprintf(stderr, "%d: %s\n", locp->first_line, err); |
1120 |
context->addErr(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, err); |
1121 |
} |
1122 |
|
1123 |
void InstrScript_warning(YYLTYPE* locp, LinuxSampler::ParserContext* context, const char* txt) { |
1124 |
//fprintf(stderr, "WRN %d: %s\n", locp->first_line, txt); |
1125 |
context->addWrn(locp->first_line, locp->last_line, locp->first_column+1, locp->last_column+1, txt); |
1126 |
} |
1127 |
|
1128 |
/// Custom implementation of yytnamerr() to ensure quotation is always stripped from token names before printing them to error messages. |
1129 |
int InstrScript_tnamerr(char* yyres, const char* yystr) { |
1130 |
if (*yystr == '"') { |
1131 |
int yyn = 0; |
1132 |
char const *yyp = yystr; |
1133 |
for (;;) |
1134 |
switch (*++yyp) |
1135 |
{ |
1136 |
/* |
1137 |
case '\'': |
1138 |
case ',': |
1139 |
goto do_not_strip_quotes; |
1140 |
|
1141 |
case '\\': |
1142 |
if (*++yyp != '\\') |
1143 |
goto do_not_strip_quotes; |
1144 |
*/ |
1145 |
/* Fall through. */ |
1146 |
default: |
1147 |
if (yyres) |
1148 |
yyres[yyn] = *yyp; |
1149 |
yyn++; |
1150 |
break; |
1151 |
|
1152 |
case '"': |
1153 |
if (yyres) |
1154 |
yyres[yyn] = '\0'; |
1155 |
return yyn; |
1156 |
} |
1157 |
/* |
1158 |
do_not_strip_quotes: ; |
1159 |
*/ |
1160 |
} |
1161 |
|
1162 |
if (! yyres) |
1163 |
return (int) yystrlen (yystr); |
1164 |
|
1165 |
return int( yystpcpy (yyres, yystr) - yyres ); |
1166 |
} |