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120 lines
2.6 KiB
120 lines
2.6 KiB
2 years ago
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/*
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* Copyright (C) 2023 Riyi
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <memory> // std::static_pointer_cast
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#include "ruc/format/format.h"
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#include "ast.h"
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#include "environment.h"
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#include "error.h"
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#include "types.h"
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namespace blaze {
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void GlobalEnvironment::add()
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{
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auto add = [](std::span<ASTNodePtr> nodes) -> ASTNodePtr {
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int64_t result = 0;
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for (auto node : nodes) {
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if (!is<Number>(node.get())) {
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Error::the().addError(format("wrong type argument: number-or-marker-p, '{}'", node));
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return nullptr;
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}
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result += std::static_pointer_cast<Number>(node)->number();
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}
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return makePtr<Number>(result);
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};
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m_values.emplace("+", makePtr<Function>(add));
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}
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void GlobalEnvironment::sub()
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{
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auto sub = [](std::span<ASTNodePtr> nodes) -> ASTNodePtr {
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int64_t result = 0;
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if (nodes.size() == 0) {
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return makePtr<Number>(0);
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}
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for (auto node : nodes) {
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if (!is<Number>(node.get())) {
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Error::the().addError(format("wrong type argument: number-or-marker-p, '{}'", node));
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return nullptr;
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}
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}
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// Start with the first number
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result += std::static_pointer_cast<Number>(nodes[0])->number();
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// Skip the first node
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for (auto it = std::next(nodes.begin()); it != nodes.end(); ++it) {
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result -= std::static_pointer_cast<Number>(*it)->number();
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}
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return makePtr<Number>(result);
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};
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m_values.emplace("-", makePtr<Function>(sub));
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}
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void GlobalEnvironment::mul()
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{
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auto mul = [](std::span<ASTNodePtr> nodes) -> ASTNodePtr {
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int64_t result = 1;
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for (auto node : nodes) {
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if (!is<Number>(node.get())) {
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Error::the().addError(format("wrong type argument: number-or-marker-p, '{}'", node));
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return nullptr;
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}
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result *= std::static_pointer_cast<Number>(node)->number();
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}
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return makePtr<Number>(result);
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};
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m_values.emplace("*", makePtr<Function>(mul));
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}
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void GlobalEnvironment::div()
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{
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auto div = [this](std::span<ASTNodePtr> nodes) -> ASTNodePtr {
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double result = 0;
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if (nodes.size() == 0) {
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Error::the().addError(format("wrong number of arguments: {}, 0", m_current_key));
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return nullptr;
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}
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for (auto node : nodes) {
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if (!is<Number>(node.get())) {
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Error::the().addError(format("wrong type argument: number-or-marker-p, '{}'", node));
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return nullptr;
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}
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}
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// Start with the first number
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result += std::static_pointer_cast<Number>(nodes[0])->number();
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// Skip the first node
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for (auto it = std::next(nodes.begin()); it != nodes.end(); ++it) {
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result /= std::static_pointer_cast<Number>(*it)->number();
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}
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return makePtr<Number>((int64_t)result);
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};
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m_values.emplace("/", makePtr<Function>(div));
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}
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} // namespace blaze
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