diff options
Diffstat (limited to 'colm/program.c')
| -rw-r--r-- | colm/program.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/colm/program.c b/colm/program.c index d781a57e..6548cba4 100644 --- a/colm/program.c +++ b/colm/program.c @@ -246,6 +246,54 @@ void colmRunProgram( Program *prg, int argc, const char **argv ) prg->argv = 0; } +Tree *colmRunFunc( struct ColmProgram *prg, int frameId, const char **params, int paramCount ) +{ + /* Make the arguments available to the program. */ + prg->argc = 0; + prg->argv = 0; + + Execution execution; + memset( &execution, 0, sizeof(execution) ); + + Tree **sp = prg->stackRoot; + + FrameInfo *fi = &prg->rtd->frameInfo[frameId]; + Code *code = fi->codeWC; + long stretch = fi->argSize + 4 + fi->frameSize; + vm_contiguous( stretch ); + + int p; + for ( p = 0; p < paramCount; p++ ) { + if ( params[p] == 0 ) { + vm_push( 0 ); + } + else { + Head *head = stringAllocPointer( prg, params[p], strlen(params[p]) ); + Tree *tree = constructString( prg, head ); + treeUpref( tree ); + vm_push( tree ); + } + } + + /* Set up the stack as if we have called. We allow a return value. */ + vm_push( 0 ); + vm_push( 0 ); + vm_push( 0 ); + vm_push( 0 ); + + execution.framePtr = vm_ptop(); + execution.frameId = frameId; + + /* Execution loop. */ + sp = executeCode( prg, &execution, sp, code ); + + treeDownref( prg, sp, prg->returnVal ); + prg->returnVal = vm_pop(); + + assert( sp == prg->stackRoot ); + + return prg->returnVal; +}; int colmDeleteProgram( Program *prg ) { |