90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
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// Step 9: Python generator - Statements and expressions.
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//
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// Add Assignment, Return, BinaryOperation, VariableReference to Python generator.
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// Test: Calculator AST → full Python output matches MPS textGen output.
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#include "../src/ast/Module.h"
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#include "../src/ast/Function.h"
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#include "../src/ast/Variable.h"
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#include "../src/ast/Parameter.h"
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#include "../src/ast/Statement.h"
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#include "../src/ast/Expression.h"
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#include "../src/ast/Type.h"
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#include "../src/ast/Generator.h"
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#include <cassert>
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#include <iostream>
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#include <sstream>
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int main() {
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// Build the Calculator module with a function that has statements and expressions
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Module calc("Calc_M001", "Calculator", "python");
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// Add a function: def add(x, y): with assignment and return
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Function add("Calc_F001", "add");
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// Add parameters x and y
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Parameter px("Calc_P001", "x");
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PrimitiveType pxType("Calc_PT001", "int");
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px.setChild("type", &pxType);
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add.addChild("parameters", &px);
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Parameter py("Calc_P002", "y");
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PrimitiveType pyType("Calc_PT002", "int");
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py.setChild("type", &pyType);
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add.addChild("parameters", &py);
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// Add return type
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PrimitiveType addRet("Calc_RT001", "int");
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add.setChild("returnType", &addRet);
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// Add a variable for result
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Variable resultVar("Calc_V001", "result");
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PrimitiveType resultType("Calc_VT001", "int");
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resultVar.setChild("type", &resultType);
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add.addChild("body", &resultVar);
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// Add assignment: result = x + y
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Assignment assign;
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assign.id = "Calc_A001";
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// Assignment target: result
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VariableReference assignTarget("c_VR_result", "result");
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assign.setChild("target", &assignTarget);
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// Assignment value: x + y (BinaryOperation)
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BinaryOperation addOp("Calc_E001", "+");
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// Left operand: x
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VariableReference varX("Calc_VR_x", "x");
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addOp.setChild("left", &varX);
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// Right operand: y
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VariableReference varY("Calc_VR_y", "y");
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addOp.setChild("right", &varY);
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assign.setChild("value", &addOp);
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add.addChild("body", &assign);
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// Add return statement: return result
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Return addReturn;
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addReturn.id = "Calc_R001";
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VariableReference retVal("c_VR_return", "result");
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addReturn.setChild("value", &retVal);
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add.addChild("body", &addReturn);
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// Add function to module
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calc.addChild("functions", &add);
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// Create Python generator and generate code
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PythonGenerator gen;
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std::string output = gen.visitModule(&calc);
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// Verify the output contains the expected Python code
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assert(output.find("def add(x: int, y: int):") != std::string::npos);
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assert(output.find("result = x + y") != std::string::npos);
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assert(output.find("return result") != std::string::npos);
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std::cout << "Generated Python code:\n" << output << std::endl;
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std::cout << "\nStep 9: PASS — Python generator handles statements and expressions" << std::endl;
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return 0;
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}
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