diff options
Diffstat (limited to '2.3-1/macros/ASTManagement/AST_HandleWhileStatem.sci')
-rw-r--r-- | 2.3-1/macros/ASTManagement/AST_HandleWhileStatem.sci | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/2.3-1/macros/ASTManagement/AST_HandleWhileStatem.sci b/2.3-1/macros/ASTManagement/AST_HandleWhileStatem.sci new file mode 100644 index 00000000..79fb516d --- /dev/null +++ b/2.3-1/macros/ASTManagement/AST_HandleWhileStatem.sci @@ -0,0 +1,118 @@ +function [FileInfo,SharedInfo] = AST_HandleWhileStatem(FileInfo,SharedInfo) +// ----------------------------------------------------------------- +//#RNU_RES_B +// Handles the WhileStatements tag of the AST. +// +// txt=['While' +// ' WhileExpression:' +// ' '+string(W.expression) +// ' WhileStatements:' +// ' '+objectlist2string(W.statements) +// 'EndWhile'] +// +//#RNU_RES_E +// Input data: +// //NUT: add description here +// +// Output data: +// //NUT: add description here +// +// Status: +// 20-Jan-2008 -- Edoardo Nutricato: Author. +// 20-Jan-2008 -- Rubby Nutricato: Minor Changes. +// +// Copyright 2007 Raffaele Nutricato. +// Contact: raffaele.nutricato@tiscali.it +// ----------------------------------------------------------------- + +//#RNU_RES_B + +//NUT: accertati che l'epilogo e il prologo del while siano effettivamente differenti o se +//NUT: si puo' avere un solo file utilizzato sia per il prologo che per l'epilogo. + +//NUT: da sistemare senza le global +//#RNU_RES_E +global SCI2CSTACK +global StackPosition; +global STACKDEDUG + + +// ------------------------------ +// --- Check input arguments. --- +// ------------------------------ +SCI2CNInArgCheck(argn(2),2,2); + +// ----------------------- +// --- Initialization. --- +// ----------------------- +nxtscifunname = SharedInfo.NextSCIFunName; +nxtscifunnumber = SharedInfo.NextSCIFunNumber; +ReportFileName = FileInfo.Funct(nxtscifunnumber).ReportFileName; +CPass1WhileProlFileName = FileInfo.Funct(nxtscifunnumber).CPass1WhileProlFileName(SharedInfo.While.Level); +PrintStepInfo('Handling WhileStatements',FileInfo.Funct(nxtscifunnumber).ReportFileName,'file'); +// --------------------------- +// --- End Initialization. --- +// --------------------------- + +//#RNU_RES_B +// ----------------------------------------------- +// --- Resume the correct name while CPass1V1. --- +// ----------------------------------------------- +//#RNU_RES_E +tmpfilename = FileInfo.Funct(nxtscifunnumber).CPass1FileName; +FileInfo.Funct(nxtscifunnumber).CPass1FileName = FileInfo.Funct(nxtscifunnumber).CPass1WhileProlFileName(SharedInfo.While.Level); +FileInfo.Funct(nxtscifunnumber).CPass1WhileProlFileName(SharedInfo.While.Level) = tmpfilename; +CPass1WhileProlFileName = FileInfo.Funct(nxtscifunnumber).CPass1WhileProlFileName(SharedInfo.While.Level); +PrintStringInfo(' Redirecting C code to: '+FileInfo.Funct(nxtscifunnumber).CPass1FileName,FileInfo.Funct(nxtscifunnumber).ReportFileName,'file'); + +//#RNU_RES_B +// ------------------------ +// --- Generate C code. --- +// ------------------------ +//#RNU_RES_E +if(SharedInfo.WhileExpr.CondVar == '') + //#RNU_RES_B + // It means that we are handling something like while(a) or while(1) + // The while condition variable is generated by the HandleEndGenFun. + //#RNU_RES_E + + // --- Pop the name of the condition variable or number. --- + Pop1 = AST_PopASTStack(); + + [ArgName,ArgScope] = AST_ExtractNameAndScope(Pop1); + if (length(ArgName) == 0) + PrintStringInfo(' ',ReportFileName,'both','y'); + PrintStringInfo('SCI2CERROR: Expected while(variable) or while(number).','','stdout','y'); + PrintStringInfo('SCI2CERROR: Expected a variable or number in the AST while expression.','','stdout','y'); + PrintStringInfo('SCI2CERROR: Report this error to http://forge.scilab.org/index.php/p/scilab2c/issues/.','','stdout','y'); + PrintStringInfo(' ',ReportFileName,'both','y'); + error(9999, 'Expected a conditional variable in the while expression'); + end + + SharedInfo.WhileExpr.CondVar = ArgName; + //#RNU_RES_B + // --- Repush strings into the AST stack. --- + //#RNU_RES_E + + AST_PushASTStack(Pop1); + +elseif (SharedInfo.WhileExpr.DimCondVar > 0) + error(9999, 'Cannot manage while with matrix conditions'); +end +SharedInfo = C_WhileExpression(FileInfo,SharedInfo); + +// -------------------------- +// --- Update SharedInfo. --- +// -------------------------- +// Signal the exit from a while expression. +SharedInfo.WhileExpr.OnExec = SharedInfo.WhileExpr.OnExec - 1; +SharedInfo.WhileExpr.CondVar = ''; +SharedInfo.WhileExpr.DimCondVar = -1; +SharedInfo.WhileExpr.AssignmentFun = 0; //NUT: siamo sicuri che serva? + +// ------------------------------- +// --- Delete temporary files. --- +// ------------------------------- +SCI2Cmdelete(CPass1WhileProlFileName); + +endfunction |