74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/** @file DLocalSymtab.cpp
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*
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* @author Roland Conybeare, Jan 2026
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**/
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#include "DLocalSymtab.hpp"
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#include "DUniqueString.hpp"
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#include <xo/indentlog/scope.hpp>
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namespace xo {
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using xo::facet::typeseq;
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namespace scm {
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DLocalSymtab::DLocalSymtab(size_type n) : capacity_{n}, size_{0}
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{
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for (size_type i = 0; i < n; ++i) {
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void * mem = &slots_[i];
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new (mem) Slot();
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}
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}
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DLocalSymtab *
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DLocalSymtab::_make_empty(obj<AAllocator> mm, size_type n)
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{
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void * mem = mm.alloc(typeseq::id<DLocalSymtab>(),
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sizeof(DLocalSymtab) + (n * sizeof(Slot)));
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return new (mem) DLocalSymtab(n);
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}
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Binding
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DLocalSymtab::append_var(obj<AAllocator> mm,
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const DUniqueString * name,
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TypeRef typeref)
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{
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assert(name);
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if (size_ >= capacity_ || !name) {
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assert(false);
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return Binding::null();
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} else {
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size_type i_slot = (this->size_)++;
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Binding binding = Binding::local(i_slot);
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DVariable * var = DVariable::make(mm, name, typeref, binding);
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this->slots_[i_slot] = Slot(var);
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return binding;
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}
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}
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Binding
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DLocalSymtab::lookup_binding(const DUniqueString * sym) const noexcept
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{
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assert(sym);
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if (sym) {
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for (size_type i = 0; i < size_; ++i) {
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const Slot & slot = slots_[i];
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if (*sym == *(slot.var_->name()))
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return slot.var_->path();
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}
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}
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return Binding();
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}
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} /*namespace scm*/
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} /*namespace xo*/
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/* end DLocalSymtab.cpp */
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