54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
#include "Environment.h"
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#include "ErrorReporter.h"
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void Environment::assign(const Token& name, const Value& value) {
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auto it = variables.find(name.lexeme);
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if (it != variables.end()) {
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it->second = value;
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return;
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}
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if (parent != nullptr) {
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parent->assign(name, value);
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return;
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}
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if (errorReporter) {
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errorReporter->reportError(name.line, name.column, "Runtime Error",
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"Undefined variable '" + name.lexeme + "'", "");
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}
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throw std::runtime_error("Undefined variable '" + name.lexeme + "'");
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}
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Value Environment::get(const Token& name) {
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auto it = variables.find(name.lexeme);
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if (it != variables.end()) {
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return it->second;
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}
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if (parent != nullptr) {
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return parent->get(name);
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}
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if (errorReporter) {
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errorReporter->reportError(name.line, name.column, "Runtime Error",
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"Undefined variable '" + name.lexeme + "'", "");
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}
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throw std::runtime_error("Undefined variable '" + name.lexeme + "'");
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}
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void Environment::pruneForClosureCapture() {
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for (auto &entry : variables) {
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Value &v = entry.second;
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if (v.isArray()) {
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entry.second = Value(std::vector<Value>{});
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} else if (v.isDict()) {
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entry.second = Value(std::unordered_map<std::string, Value>{});
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}
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}
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if (parent) {
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parent->pruneForClosureCapture();
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}
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} |