70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
#include "TypeResolver.hpp"
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namespace roza
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{
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/*explicit*/ TypeResolver::TypeResolver(StatusLog& log)
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: m_log { log }
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{
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}
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/*virtual*/ TypeResolver::~TypeResolver()
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{
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}
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std::shared_ptr<Type> TypeResolver::find(std::shared_ptr<Node> root,
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SymTable const& sym)
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{
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switch (root->type())
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{
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case NODE_PROG: {
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return find(root->child(root->size() - 1), sym);
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} break;
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case NODE_IDENT: {
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std::string name = root->repr();
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SymEntry const& entry = sym.find(name);
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return find(entry.node, sym);
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} break;
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case NODE_CONSTDECL:
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case NODE_VARDECL: {
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auto ty = find(root->child(1), sym);
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} break;
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case NODE_INT: {
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return std::make_shared<Type>(BaseType::TY_INT);
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} break;
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case NODE_EQ:
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case NODE_NE:
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case NODE_LT:
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case NODE_LE:
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case NODE_GT:
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case NODE_GE:
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case NODE_IMP:
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case NODE_AND:
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case NODE_OR:
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case NODE_NOT:
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case NODE_BOOL: {
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return std::make_shared<Type>(BaseType::TY_BOOL);
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} break;
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case NODE_ADD:
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case NODE_SUB:
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case NODE_MUL:
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case NODE_DIV:
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case NODE_MOD:
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case NODE_POW:
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case NODE_UADD:
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case NODE_USUB:{
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return find(root->child(0), sym);
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} break;
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default:
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m_log.fatal(root->loc(), "cannot find type of node '" + root->string() + "'");
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}
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return nullptr;
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}
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}
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