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package no.eliashaugsbakk.kompilator.IRGeneration;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.util.List;
import no.eliashaugsbakk.kompilator.parsing.AST;
import no.eliashaugsbakk.kompilator.parsing.node.Program;
import no.eliashaugsbakk.kompilator.parsing.node.expression.FunctionCall;
import no.eliashaugsbakk.kompilator.parsing.node.expression.literal.StringLiteral;
import no.eliashaugsbakk.kompilator.parsing.node.statement.ExpressionStatement;
import org.junit.jupiter.api.Test;
class IRGeneratorTest {
@Test
void singlePrintStatementGeneratesCorrectIR() {
AST ast = buildAST("skriv", "hello");
List<String> ir = new IRGenerator(ast).generate();
assertEquals(2, ir.size());
assertEquals("t0: string = \"hello\"", ir.get(0));
assertEquals("print(t0)", ir.get(1));
}
@Test
void multiplePrintStatementsGenerateSequentialTempVars() {
Program program = new Program();
program.addStatement(buildStatement("skriv", "hello"));
program.addStatement(buildStatement("skriv", "world"));
AST ast = new AST(program);
List<String> ir = new IRGenerator(ast).generate();
assertEquals(4, ir.size());
assertEquals("t0: string = \"hello\"", ir.get(0));
assertEquals("print(t0)", ir.get(1));
assertEquals("t1: string = \"world\"", ir.get(2));
assertEquals("print(t1)", ir.get(3));
}
private AST buildAST(String functionName, String argument) {
return new AST(buildProgram(functionName, argument));
}
private Program buildProgram(String functionName, String argument) {
Program program = new Program();
program.addStatement(buildStatement(functionName, argument));
return program;
}
private ExpressionStatement buildStatement(String functionName, String argument) {
FunctionCall call = new FunctionCall(functionName, List.of(new StringLiteral(argument)));
return new ExpressionStatement(call);
}
}
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