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allow passing lambdas to eval task builder without casting #7

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Merged
Andrew Kent (realark) merged 1 commit into from
Nov 5, 2025
Merged

allow passing lambdas to eval task builder without casting #7

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2 changes: 1 addition & 1 deletion examples/src/main/java/dev/braintrust/examples/ExperimentExample.java
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ public static void main(String[] args) throws Exception {
EvalCase.of("asparagus", "vegetable"),
EvalCase.of("apple", "fruit"),
EvalCase.of("banana", "fruit"))
.task(getFoodType)
.taskFunction(getFoodType)
.scorers(
Scorer.of(
"fruit_scorer",
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4 changes: 2 additions & 2 deletions src/main/java/dev/braintrust/eval/Eval.java
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Expand Up @@ -250,8 +250,8 @@ public Builder<INPUT, OUTPUT> task(Task<INPUT, OUTPUT> task) {
return this;
}

public Builder<INPUT, OUTPUT> task(Function<INPUT, OUTPUT> taskFn) {
return task((Task<INPUT, OUTPUT>) evalCase -> taskFn.apply(evalCase.input()));
public Builder<INPUT, OUTPUT> taskFunction(Function<INPUT, OUTPUT> taskFn) {
return task(evalCase -> taskFn.apply(evalCase.input()));
}

@SafeVarargs
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3 changes: 1 addition & 2 deletions src/test/java/dev/braintrust/eval/EvalTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@
import dev.braintrust.api.BraintrustApiClient;
import dev.braintrust.trace.BraintrustTracing;
import io.opentelemetry.api.common.AttributeKey;
import java.util.function.Function;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

Expand All @@ -30,7 +29,7 @@ public void evalOtelTraceWithProperAttributes() {
.cases(
EvalCase.of("strawberry", "fruit"),
EvalCase.of("asparagus", "vegetable"))
.task((Function<String, String>) food -> "fruit")
.task(food -> "fruit")
.scorers(
Scorer.of(
"fruit_scorer",
Expand Down