60 lines
1.7 KiB
Java
60 lines
1.7 KiB
Java
/*
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* Code formatter project
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* CS 4481
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*/
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package submit.ast;
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import java.util.List;
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import submit.MIPSResult;
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import submit.RegisterAllocator;
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import submit.SymbolTable;
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/**
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*
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* @author edwajohn
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*/
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public class CompoundStatement extends AbstractNode implements Statement {
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private final List<Statement> statements;
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private SymbolTable symbolTable;
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public CompoundStatement(List<Statement> statements,
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SymbolTable symbolTable) {
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this.statements = statements;
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this.symbolTable = symbolTable;
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}
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public SymbolTable getSymbolTable() { return symbolTable; }
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@Override
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public void toCminus(StringBuilder builder, String prefix) {
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builder.append(prefix).append("{\n");
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for (Statement s : statements) {
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s.toCminus(builder, prefix + " ");
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}
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builder.append(prefix).append("}\n");
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}
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@Override
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public MIPSResult toMIPS(StringBuilder code, StringBuilder data,
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SymbolTable symbolTable,
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RegisterAllocator regAllocator) {
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code.append("# Entering a new scope.\n");
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code.append("# Symbols in symbol table:\n");
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for (String name : this.symbolTable.symbolNames())
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code.append(
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String.format("# %s : %d\n", name, this.symbolTable.offsetOf(name)));
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code.append("# Update the stack pointer.\n");
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code.append(String.format("addi $sp $sp %d\n", symbolTable.getOffset()));
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for (Statement statement : statements)
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statement.toMIPS(code, data, this.symbolTable, regAllocator);
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code.append("# Exit scope.\n");
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code.append(String.format("addi $sp $sp %s\n", -symbolTable.getOffset()));
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return MIPSResult.createVoidResult();
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}
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}
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