84 lines
3.7 KiB
MQL5
84 lines
3.7 KiB
MQL5
//+------------------------------------------------------------------+
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//| CLiveEnvironment.mqh |
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//| Synthetic Test Harness for MetaTrader 5 |
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//| Institutional Architecture in MQL5 - Part 1 Series |
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//+------------------------------------------------------------------+
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#ifndef SYNTHETIC_TEST_HARNESS_CLIVE_ENVIRONMENT_MQH
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#define SYNTHETIC_TEST_HARNESS_CLIVE_ENVIRONMENT_MQH
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#include "IMarketEnvironment.mqh"
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//+------------------------------------------------------------------+
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//| CLiveEnvironment: production adapter for the real MT5 terminal. |
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//| |
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//| Every method delegates directly to native MT5 global functions. |
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//| This is the "other side" of the Dependency Injection coin: |
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//| - In tests: your EA receives a CSyntheticEngine* |
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//| - In prod: your EA receives a CLiveEnvironment* |
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//| - Your EA code stays the same in both cases. |
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//| |
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//| Usage: |
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//| CLiveEnvironment *env = new CLiveEnvironment("EURUSD"); |
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//| my_ea.Initialize(env); |
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//+------------------------------------------------------------------+
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class CLiveEnvironment : public IMarketEnvironment
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{
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private:
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string m_symbol;
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public:
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//+---------------------------------------------------------------+
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//| Constructor: receives the symbol to query from the terminal. |
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//+---------------------------------------------------------------+
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CLiveEnvironment(const string symbol)
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{
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m_symbol = symbol;
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}
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//+---------------------------------------------------------------+
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//| GetBid: delegates to SymbolInfoDouble(SYMBOL_BID). |
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//+---------------------------------------------------------------+
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double GetBid(void)
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{
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return(SymbolInfoDouble(m_symbol, SYMBOL_BID));
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}
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//+---------------------------------------------------------------+
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//| GetAsk: delegates to SymbolInfoDouble(SYMBOL_ASK). |
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//+---------------------------------------------------------------+
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double GetAsk(void)
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{
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return(SymbolInfoDouble(m_symbol, SYMBOL_ASK));
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}
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//+---------------------------------------------------------------+
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//| GetSpread: delegates to SymbolInfoInteger(SYMBOL_SPREAD). |
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//| Returns spread in points as a double for interface compat. |
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//+---------------------------------------------------------------+
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double GetSpread(void)
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{
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return((double)SymbolInfoInteger(m_symbol, SYMBOL_SPREAD));
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}
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//+---------------------------------------------------------------+
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//| GetTimeCurrent: delegates to the native TimeCurrent(). |
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//+---------------------------------------------------------------+
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datetime GetTimeCurrent(void)
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{
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return(TimeCurrent());
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}
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//+---------------------------------------------------------------+
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//| TryExecuteOrder: delegates directly to the native OrderSend().|
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//| The request and result structures are passed through unchanged |
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//| — this adapter adds zero logic, just bridges the interface |
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//| to the real terminal. |
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//+---------------------------------------------------------------+
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bool TryExecuteOrder(MqlTradeRequest &request, MqlTradeResult &result)
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{
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return(OrderSend(request, result));
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}
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};
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//+------------------------------------------------------------------+
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#endif
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