void FunctionDeclaration(out FunctionDeclaration decl, Scope parentScope)
{
Statement stmt;
BaseType type;
VariableDeclarationList decls;
Expect(6);
Expect(1);
decl = new FunctionDeclaration(t, parentScope);
Expect(38);
if (StartOf(1)) {
Type(out type);
Expect(1);
decl.AddArgument(t, type);
while (la.kind == 31) {
Get();
Type(out type);
Expect(1);
decl.AddArgument(t, type);
}
}
Expect(45);
if (la.kind == 30) {
Get();
Type(out type);
decl.returnType = type;
}
while (la.kind == 14) {
VariableDeclarations(out decls);
decl.localScope.AddVariables(decls);
}
BlockStatement(out stmt);
decl.body = stmt as BlockStatement;
}
void ProgramBody(out FunctionDeclaration main)
{
Statement stmt;
main = new FunctionDeclaration("Main", CSR.Compiler.Compiler.staticScope);
BlockStatement(out stmt);
main.body = stmt as BlockStatement;
}
/// <summary>
/// Adds a function declaration
/// </summary>
/// <param name="decl">FunctionDeclaration object</param>
public void AddFunction(FunctionDeclaration decl)
{
// Check if a function with the same exact signature was already declared
foreach (FunctionDeclaration func in functions)
{
// Check if functions have the same name
if (func.name == decl.name)
{
// Check if functions have the same signature
if (func.ToSignature().IsExactMatch(decl.ToSignature()))
{
// Issue error
Compiler.Compiler.errors.SemErr(decl.t.line, decl.t.col, string.Format("Function '{0}' already declared", decl.name));
}
}
}
// Add function to list
functions.Add(decl);
}
