61 lines
1.6 KiB
Java
61 lines
1.6 KiB
Java
/*
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*/
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package submit;
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import submit.ast.VarType;
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/**
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* This class represents the result of generating MIPS code. There are various
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* forms this result can take: 1) void, for cases where the calling node doesn't
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* need any information returned, such as a return statement. 2) register, for
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* cases where the called node needs to inform the calling node what register a
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* result is placed in, such as BinaryOperator. 3) address, for cases where the
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* returning result is in memory, such as StringConstant.
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*
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* To instantiate a MIPSResult object use the factory methods create...().
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*
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*/
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public class MIPSResult {
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private final String register;
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private final String address;
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private final VarType type;
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public static MIPSResult createVoidResult() {
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return new MIPSResult(null, null, null);
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}
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public static MIPSResult createRegisterResult(String register, VarType type) {
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return new MIPSResult(register, null, type);
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}
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public static MIPSResult createAddressResult(String address, VarType type) {
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return new MIPSResult(null, address, type);
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}
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private MIPSResult(String register, String address, VarType type) {
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this.register = register;
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this.address = address;
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this.type = type;
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}
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/**
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* Anytime you get a register from a result you should seriously consider
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* calling regAllocator.clear(reg) after using the register to minimize
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* register usage.
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*
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* @return
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*/
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public String getRegister() {
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return register;
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}
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public String getAddress() {
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return address;
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}
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public VarType getType() {
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return type;
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}
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}
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