public override int VisitCompileUnit(CCompileUnit node)
{
m_translatedFile = new CFile(CodeBlockType.CB_FILE, 3, null);
m_translatedFile.AddCode("#include <stdio.h>\n", CFile.CB_PREPROCESSOR);
m_translatedFile.AddCode("#include <stdlib.h>\n", CFile.CB_PREPROCESSOR);
m_parents.Push(m_translatedFile.MMainFunctionDefinition);
m_parentContexts.Push(CCFunctionDefinition.CB_FUNCTIONDEFINITION_BODY);
// Visit Statements Context and emmit code to main functions
foreach (ASTVisitableElement child in node.GetChildrenContext(CCompileUnit.CT_COMPILEUNIT_STATEMENTS))
{
Visit(child);
}
m_parents.Pop();
m_parentContexts.Pop();
m_parents.Push(m_translatedFile);
m_parentContexts.Push(CFile.CB_FUNDEFS);
// Visit Function Definitions and emmit code to distinct functions
foreach (ASTVisitableElement child in node.GetChildrenContext(CCompileUnit.CT_COMPILEUNIT_FUNDEFS))
{
Visit(child);
}
m_parents.Pop();
m_parentContexts.Pop();
return(0);
}
public override int VisitFunction(CFunction node)
{
//1. Create Output File
CFile parent = m_parents.Peek() as CFile;
CodeContainer repDeclare = new CodeContainer(CodeBlockType.CB_FILE, parent);
CCFunctionDefinition rep = new CCFunctionDefinition(CodeBlockType.CB_FUNCTIONDEFINITION, 2, parent);
//2. Add Function Definition to the File in the appropriate context
parent.AddCode(repDeclare, CFile.CB_GLOBALS);
parent.AddCode(rep, CFile.CB_FUNDEFS);
m_parents.Push(rep);
m_parentContexts.Push(CCFunctionDefinition.CB_FUNCTIONDEFINITION_DECLARATIONS);
//3. Assemble the function header
CIdentifier id = node.GetChild(CFunction.CT_FNAME, 0) as CIdentifier;
m_translatedFile.DeclareFunction(id.M_Name);
rep.AddCode("float " + id.M_Name + "(", CCFunctionDefinition.CB_FUNCTIONDEFINITION_DECLARATIONS);
repDeclare.AddCode("float " + id.M_Name + "(", CFile.CB_GLOBALS);
string last = node.GetChildrenContext(CFunction.CT_FARGS).Last().M_GraphVizName;
foreach (ASTElement s in node.GetChildrenContext(CFunction.CT_FARGS))
{
repDeclare.AddCode("float " + s.M_Name, CFile.CB_GLOBALS);
rep.AddCode("float " + s.M_Name, CCFunctionDefinition.CB_FUNCTIONDEFINITION_DECLARATIONS);
if (!s.M_GraphVizName.Equals(last))
{
repDeclare.AddCode(", ", CFile.CB_GLOBALS);
rep.AddCode(", ", CCFunctionDefinition.CB_FUNCTIONDEFINITION_DECLARATIONS);
}
parent.DeclareLocalFunvtionVariable(id.M_Name, s.M_Name);
}
repDeclare.AddCode(");\n", CFile.CB_GLOBALS);
rep.AddCode(")", CCFunctionDefinition.CB_FUNCTIONDEFINITION_DECLARATIONS);
m_parents.Pop();
m_parentContexts.Pop();
m_parents.Push(rep);
m_parentContexts.Push(CCFunctionDefinition.CB_FUNCTIONDEFINITION_BODY);
m_functionNames.Push(id.M_Name);
foreach (ASTVisitableElement child in node.GetChildrenContext(CFunction.CT_BODY))
{
Visit(child);
}
m_functionNames.Pop();
m_parents.Pop();
m_parentContexts.Pop();
return(0);
}
