+#include <cstring>
#include <msp/core/raii.h>
#include <msp/strings/format.h>
#include "validate.h"
stage(0)
{ }
-void Validator::diagnose(Statement *statement, Diagnostic::Severity severity, const string &message)
+void Validator::diagnose(Node &node, Diagnostic::Severity severity, const string &message)
{
Diagnostic diag;
diag.severity = severity;
- if(statement)
- {
- diag.source = statement->source;
- diag.line = statement->line;
- }
+ diag.source = node.source;
+ diag.line = node.line;
diag.message = message;
stage->diagnostics.push_back(diag);
}
+TypeValidator::TypeValidator():
+ in_struct(false)
+{ }
+
+void TypeValidator::visit(BasicTypeDeclaration &type)
+{
+ if(type.kind==BasicTypeDeclaration::VECTOR)
+ {
+ BasicTypeDeclaration::Kind base_kind = BasicTypeDeclaration::VOID;
+ if(BasicTypeDeclaration *basic_base = dynamic_cast<BasicTypeDeclaration *>(type.base_type))
+ base_kind = basic_base->kind;
+ if(base_kind!=BasicTypeDeclaration::BOOL && base_kind!=BasicTypeDeclaration::INT && base_kind!=BasicTypeDeclaration::FLOAT)
+ error(type, format("Invalid base type '%s' for vector type '%s'", type.base, type.name));
+ }
+ else if(type.kind==BasicTypeDeclaration::ARRAY)
+ {
+ if(BasicTypeDeclaration *basic_base = dynamic_cast<BasicTypeDeclaration *>(type.base_type))
+ if(basic_base->kind==BasicTypeDeclaration::VOID)
+ error(type, format("Invalid base type '%s' for array type '%s'", type.base, type.name));
+ }
+}
+
+void TypeValidator::visit(ImageTypeDeclaration &type)
+{
+ BasicTypeDeclaration::Kind base_kind = BasicTypeDeclaration::VOID;
+ if(BasicTypeDeclaration *basic_base = dynamic_cast<BasicTypeDeclaration *>(type.base_type))
+ base_kind = basic_base->kind;
+ if(base_kind!=BasicTypeDeclaration::INT && base_kind!=BasicTypeDeclaration::FLOAT)
+ error(type, format("Invalid base type '%s' for image type '%s'", type.base, type.name));
+}
+
+void TypeValidator::visit(StructDeclaration &strct)
+{
+ SetFlag set_struct(in_struct);
+ TraversingVisitor::visit(strct);
+}
+
+void TypeValidator::visit(VariableDeclaration &var)
+{
+ if(in_struct)
+ {
+ if(var.layout)
+ error(var, "Struct members can't have layouts");
+ if(var.init_expression)
+ error(var, "Struct members can't have initializers");
+ }
+
+ TraversingVisitor::visit(var);
+}
+
+
DeclarationValidator::DeclarationValidator():
anonymous_block(false)
{ }
+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");
+}
+
Statement *DeclarationValidator::find_definition(const string &name)
{
BlockDeclarationMap *decls = &declarations[current_block];
void DeclarationValidator::check_definition(const string &name, Statement &statement)
{
if(Statement *previous = find_definition(name))
- {
- error(&statement, format("Multiple definition of '%s'", name));
- diagnose(previous, Diagnostic::INFO, "Previous definition is here");
- return;
- }
+ multiple_definition(format("'%s'", name), statement, *previous);
+ else
+ record_definition(name, statement);
+}
+void DeclarationValidator::record_definition(const string &name, Statement &statement)
+{
declarations[current_block].insert(make_pair(name, &statement));
if(anonymous_block)
declarations[current_block->parent].insert(make_pair(name, &statement));
}
+void DeclarationValidator::visit(TypeDeclaration &type)
+{
+ check_definition(type.name, type);
+}
+
+void DeclarationValidator::visit(StructDeclaration &strct)
+{
+ check_definition(strct.name, strct);
+ TraversingVisitor::visit(strct);
+}
+
void DeclarationValidator::visit(VariableDeclaration &var)
{
check_definition(var.name, var);
void DeclarationValidator::visit(InterfaceBlock &iface)
{
- check_definition(iface.name, iface);
+ string key = iface.interface+iface.name;
+ map<string, InterfaceBlock *>::const_iterator i = interface_blocks.find(key);
+ if(i!=interface_blocks.end())
+ multiple_definition(format("interface block '%s %s'", iface.interface, iface.name), iface, *i->second);
+ else
+ interface_blocks.insert(make_pair(key, &iface));
+
+ if(Statement *previous = find_definition(iface.name))
+ {
+ if(!dynamic_cast<InterfaceBlock *>(previous))
+ multiple_definition(format("'%s'", iface.name), iface, *previous);
+ }
+ else
+ record_definition(iface.name, iface);
+
if(!iface.instance_name.empty())
check_definition(iface.instance_name, iface);
+
SetFlag set_anon(anonymous_block, iface.instance_name.empty());
TraversingVisitor::visit(iface);
}
void DeclarationValidator::visit(FunctionDeclaration &func)
{
- if(func.definition==&func)
- check_definition(func.name, func);
+ 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
+ multiple_definition(format("'%s'", func.name), func, *previous);
+ }
+ else
+ record_definition(func.name, func);
+
+ TraversingVisitor::visit(func);
+}
+
+
+void ReferenceValidator::visit(BasicTypeDeclaration &type)
+{
+ if(!type.base.empty() && !type.base_type)
+ error(type, format("Use of undeclared type '%s'", type.base));
+}
+
+void ReferenceValidator::visit(ImageTypeDeclaration &type)
+{
+ if(!type.base.empty() && !type.base_type)
+ error(type, format("Use of undeclared type '%s'", type.base));
+}
+
+void ReferenceValidator::visit(VariableReference &var)
+{
+ if(!var.declaration)
+ error(var, format("Use of undeclared variable '%s'", var.name));
+ else if(stage->type!=Stage::VERTEX && var.declaration->interface=="in" && !var.declaration->linked_declaration)
+ error(var, format("Use of unlinked input variable '%s'", var.name));
+}
+
+void ReferenceValidator::visit(InterfaceBlockReference &iface)
+{
+ /* An interface block reference without a declaration should be impossible
+ since references are generated based on existing declarations. */
+ if(!iface.declaration)
+ error(iface, format("Use of undeclared interface block '%s'", iface.name));
+ else if(stage->type!=Stage::VERTEX && iface.declaration->interface=="in" && !iface.declaration->linked_block)
+ error(iface, format("Use of unlinked input block '%s'", iface.name));
+}
+
+void ReferenceValidator::visit(VariableDeclaration &var)
+{
+ if(!var.type_declaration)
+ error(var, format("Use of undeclared type '%s'", var.type));
+ TraversingVisitor::visit(var);
+}
+
+void ReferenceValidator::visit(FunctionDeclaration &func)
+{
+ if(!func.return_type_declaration)
+ error(func, format("Use of undeclared type '%s'", func.return_type));
TraversingVisitor::visit(func);
}
+
+void ExpressionValidator::visit(UnaryExpression &unary)
+{
+ if(unary.expression->type)
+ {
+ if(!unary.type)
+ error(unary, format("No matching operator '%s' found for '%s'", unary.oper->token, unary.expression->type->name));
+ else if((unary.oper->token[1]=='+' || unary.oper->token[1]=='-') && !unary.expression->lvalue)
+ error(unary, format("Operand of '%s' is not an lvalue", unary.oper->token));
+ }
+ TraversingVisitor::visit(unary);
+}
+
+void ExpressionValidator::visit(BinaryExpression &binary)
+{
+ if(!binary.type && binary.left->type && binary.right->type)
+ error(binary, format("No matching operator '%s' found for '%s' and '%s'",
+ binary.oper->token, binary.left->type->name, binary.right->type->name));
+ TraversingVisitor::visit(binary);
+}
+
+void ExpressionValidator::visit(Assignment &assign)
+{
+ if(assign.left->type)
+ {
+ if(!assign.left->lvalue)
+ error(assign, "Target of assignment is not an lvalue");
+ if(assign.right->type)
+ {
+ if(assign.oper->token[0]!='=')
+ {
+ if(!assign.type)
+ error(assign, format("No matching operator '%s' found for '%s' and '%s'",
+ string(assign.oper->token, strlen(assign.oper->token)-1), assign.left->type->name, assign.right->type->name));
+ }
+ else if(assign.left->type!=assign.right->type)
+ error(assign, format("Assignment to variable of type '%s' from expression of incompatible type '%s'",
+ assign.left->type->name, assign.right->type->name));
+ }
+ }
+ TraversingVisitor::visit(assign);
+}
+
+void ExpressionValidator::visit(VariableDeclaration &var)
+{
+ if(var.init_expression && var.init_expression->type && var.type_declaration && var.init_expression->type!=var.type_declaration)
+ error(var, format("Initializing a variable of type '%s' with an expression of incompatible type '%s'",
+ var.type_declaration->name, var.init_expression->type->name));
+ TraversingVisitor::visit(var);
+}
+
} // namespace SL
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff