44 lines
2.2 KiB
MQL5
44 lines
2.2 KiB
MQL5
 | //+------------------------------------------------------------------+
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//| IMarketEnvironment.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_IMARKET_ENVIRONMENT_MQH
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#define SYNTHETIC_TEST_HARNESS_IMARKET_ENVIRONMENT_MQH
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//+------------------------------------------------------------------+
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//| IMarketEnvironment: outbound port abstracting the MT5 terminal. |
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//| |
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//| Domain logic (Expert Advisors) programs against this interface, |
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//| never against native global functions like SymbolInfoDouble(), |
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//| TimeCurrent(), or OrderSend(). This is the core of the |
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//| Dependency Injection strategy. |
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//| |
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//| Concrete implementations: |
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//| - CSyntheticEngine (test: reads from injected ticks) |
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//| - CLiveEnvironment (prod: delegates to native MT5 API) |
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//| |
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//| ADR-001: TryExecuteOrder() uses the native MqlTradeRequest and |
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//| MqlTradeResult structures so test and production code share the |
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//| exact same call pattern. No signature mismatch between adapters. |
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//+------------------------------------------------------------------+
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interface IMarketEnvironment
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{
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//--- Price queries
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double GetBid(void);
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double GetAsk(void);
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double GetSpread(void);
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//--- Time abstraction
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datetime GetTimeCurrent(void);
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//--- Order execution: mirrors the native OrderSend() contract.
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//--- Returns true on success (result.retcode == TRADE_RETCODE_DONE).
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//--- Returns false on failure (result.retcode contains the server error).
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bool TryExecuteOrder(MqlTradeRequest &request,
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MqlTradeResult &result);
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};
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//+------------------------------------------------------------------+
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#endif
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