+#include <algorithm>
#include <cstring>
#include <msp/core/raii.h>
#include <msp/strings/format.h>
namespace SL {
Validator::Validator():
- stage(0)
+ stage(0),
+ last_provoker(0)
{ }
-void Validator::diagnose(Node &node, Diagnostic::Severity severity, const string &message)
+void Validator::diagnose(Node &node, Node &provoking_node, Diagnostic::Severity severity, const string &message)
{
Diagnostic diag;
diag.severity = severity;
diag.source = node.source;
diag.line = node.line;
+ diag.provoking_source = provoking_node.source;
+ diag.provoking_line = provoking_node.line;
diag.message = message;
stage->diagnostics.push_back(diag);
+
+ last_provoker = &provoking_node;
+}
+
+void Validator::add_info(Node &node, const string &message)
+{
+ if(!last_provoker)
+ throw logic_error("Tried to add info without a previous provoker");
+ diagnose(node, *last_provoker, Diagnostic::INFO, message);
}
void DeclarationValidator::multiple_definition(const string &name, Statement &statement, Statement &previous)
{
error(statement, format("Multiple definition of %s", name));
- diagnose(previous, Diagnostic::INFO, "Previous definition is here");
+ add_info(previous, "Previous definition is here");
}
Statement *DeclarationValidator::find_definition(const string &name)
if(!iface.instance_name.empty())
check_definition(iface.instance_name, iface);
- SetFlag set_anon(anonymous_block, iface.instance_name.empty());
- TraversingVisitor::visit(iface);
+ if(iface.instance_name.empty() && iface.struct_declaration)
+ {
+ // Inject anonymous interface block members into the global scope
+ const map<string, VariableDeclaration *> &iface_vars = iface.struct_declaration->members.variables;
+ for(map<string, VariableDeclaration *>::const_iterator j=iface_vars.begin(); j!=iface_vars.end(); ++j)
+ check_definition(j->first, *j->second);
+ }
}
void DeclarationValidator::visit(FunctionDeclaration &func)
{
+ string key = func.name+func.signature;
+ map<string, FunctionDeclaration *>::const_iterator i = overloaded_functions.find(key);
+ if(i==overloaded_functions.end())
+ overloaded_functions.insert(make_pair(key, &func));
+ else if(func.return_type_declaration && i->second->return_type_declaration!=func.return_type_declaration)
+ {
+ error(func, format("Conflicting return type '%s' for function '%s'", func.return_type_declaration->name, func.name));
+ if(i->second->return_type_declaration)
+ add_info(*i->second, format("Previously declared as returning '%s'", i->second->return_type_declaration->name));
+ }
+
if(Statement *previous = find_definition(func.name))
{
- FunctionDeclaration *prev_func = dynamic_cast<FunctionDeclaration *>(previous);
- if(prev_func && prev_func->definition==&func)
- declarations[current_block][func.name] = &func;
- else
+ if(!dynamic_cast<FunctionDeclaration *>(previous))
multiple_definition(format("'%s'", func.name), func, *previous);
}
else
record_definition(func.name, func);
+ if(func.definition==&func)
+ check_definition(func.name+func.signature, func);
+
TraversingVisitor::visit(func);
}
error(var, format("Use of unlinked input variable '%s'", var.name));
}
+void ReferenceValidator::visit(MemberAccess &memacc)
+{
+ if(memacc.left->type && !memacc.declaration)
+ error(memacc, format("Use of undeclared member '%s'", memacc.member));
+ TraversingVisitor::visit(memacc);
+}
+
void ReferenceValidator::visit(InterfaceBlockReference &iface)
{
/* An interface block reference without a declaration should be impossible
error(iface, format("Use of unlinked input block '%s'", iface.name));
}
+void ReferenceValidator::visit(FunctionCall &call)
+{
+ if(!call.declaration && !call.constructor)
+ error(call, format("Call to undeclared function '%s'", call.name));
+ TraversingVisitor::visit(call);
+}
+
void ReferenceValidator::visit(VariableDeclaration &var)
{
if(!var.type_declaration)
TraversingVisitor::visit(var);
}
+void ReferenceValidator::visit(InterfaceBlock &iface)
+{
+ if(!iface.struct_declaration)
+ error(iface, format("Interface block '%s %s' lacks a struct declaration", iface.interface, iface.name));
+ TraversingVisitor::visit(iface);
+}
+
void ReferenceValidator::visit(FunctionDeclaration &func)
{
if(!func.return_type_declaration)
}
+void ExpressionValidator::visit(Swizzle &swizzle)
+{
+ unsigned size = 0;
+ if(BasicTypeDeclaration *basic = dynamic_cast<BasicTypeDeclaration *>(swizzle.left->type))
+ {
+ if(basic->kind==BasicTypeDeclaration::INT || basic->kind==BasicTypeDeclaration::FLOAT)
+ size = 1;
+ else if(basic->kind==BasicTypeDeclaration::VECTOR)
+ size = basic->size;
+ }
+
+ if(size)
+ {
+ static const char component_names[] = { 'x', 'y', 'z', 'w', 'r', 'g', 'b', 'a', 's', 't', 'p', 'q' };
+ int flavour = -1;
+ for(unsigned i=0; i<swizzle.count; ++i)
+ {
+ unsigned component_flavour = (find(component_names, component_names+12, swizzle.component_group[i])-component_names)/4;
+ if(flavour==-1)
+ flavour = component_flavour;
+ else if(flavour>=0 && component_flavour!=static_cast<unsigned>(flavour))
+ {
+ error(swizzle, format("Flavour of swizzle component '%c' is inconsistent with '%c'",
+ swizzle.component_group[i], swizzle.component_group[0]));
+ flavour = -2;
+ }
+
+ if(swizzle.components[i]>=size)
+ error(swizzle, format("Access to component '%c' which is not present in '%s'",
+ swizzle.component_group[i], swizzle.left->type->name));
+ }
+ }
+ else if(swizzle.left->type)
+ error(swizzle, format("Swizzle applied to '%s' which is neither a scalar nor a vector", swizzle.left->type->name));
+
+ TraversingVisitor::visit(swizzle);
+}
+
void ExpressionValidator::visit(UnaryExpression &unary)
{
if(unary.expression->type)