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package org.shedlang.compiler.shid.instructions;
import org.pcollections.PVector;
import org.shedlang.compiler.ast.typed.FreeVariables;
import org.shedlang.compiler.sources.Source;
import org.shedlang.compiler.sources.Sources;
import org.shedlang.compiler.util.P;
import java.util.List;
/**
* Push a function value onto the temporary value stack with the given
* definition.
*/
public record ShidDefineFunction(
String name,
List<ShidParam> positionalParams,
List<ShidParam> namedParams,
FreeVariables freeVariables,
ShidBlock body,
Variant variant,
Source source
) implements ShidInstruction {
public enum Variant {
EFFECT_HANDLER_METHOD,
FUNCTION,
}
@Override
public boolean isBlockTerminator() {
return false;
}
public static Builder builder() {
return new Builder(
"f",
P.vector(),
P.vector(),
FreeVariables.builder(),
P.vector(),
Variant.FUNCTION
);
}
public record Builder(
String name,
PVector<ShidParam> positionalParams,
PVector<ShidParam> namedParams,
FreeVariables.Builder freeVariables,
PVector<ShidInstruction> body,
ShidDefineFunction.Variant variant
) {
public ShidDefineFunction build() {
return new ShidDefineFunction(
name,
positionalParams,
namedParams,
freeVariables.build(),
new ShidBlock(List.of(), body, Sources.NULL),
variant,
Sources.NULL
);
}
public Builder withName(String name) {
return new Builder(
name,
this.positionalParams,
this.namedParams,
this.freeVariables,
this.body,
this.variant
);
}
public Builder addPositionalParam(String name) {
return new Builder(
this.name,
this.positionalParams.plus(new ShidParam(name, Sources.NULL)),
this.namedParams,
this.freeVariables,
this.body,
this.variant
);
}
public Builder addNamedParam(String name) {
return new Builder(
this.name,
this.positionalParams,
this.namedParams.plus(new ShidParam(name, Sources.NULL)),
this.freeVariables,
this.body,
this.variant
);
}
public Builder addFreeVariable(String name) {
return new Builder(
this.name,
this.positionalParams,
this.namedParams,
this.freeVariables.plus(name, Sources.NULL),
this.body,
this.variant
);
}
public Builder addBodyInstruction(ShidInstruction instruction) {
return new Builder(
this.name,
this.positionalParams,
this.namedParams,
this.freeVariables,
this.body.plus(instruction),
this.variant
);
}
}
}
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