{"record":{"id":"e7a2a30588bb6a35","repo":"go-delve/delve","slug":"condition-expression-not-boolean","errorCode":null,"errorMessage":"condition expression not boolean","messagePattern":"condition expression not boolean","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/proc/breakpoints.go","lineNumber":521,"sourceCode":"\tflags |= evalop.BreakpointCondition\n\tops, err := evalop.CompileAST(scopeToEvalLookup{scope}, cond, flags)\n\tif err != nil {\n\t\treturn true, err\n\t}\n\tstack := &evalStack{}\n\tstack.eval(scope, ops)\n\tv, err := stack.result(nil)\n\tif err != nil {\n\t\tif stack.disabledErrors {\n\t\t\treturn false, nil\n\t\t}\n\t\treturn true, fmt.Errorf(\"error evaluating expression: %v\", err)\n\t}\n\tif v.Kind != reflect.Bool {\n\t\tif stack.disabledErrors {\n\t\t\treturn false, nil\n\t\t}\n\t\treturn true, errors.New(\"condition expression not boolean\")\n\t}\n\tv.loadValue(LoadFullValue())\n\tif v.Unreadable != nil {\n\t\tif stack.disabledErrors {\n\t\t\treturn false, nil\n\t\t}\n\t\treturn true, fmt.Errorf(\"condition expression unreadable: %v\", v.Unreadable)\n\t}\n\treturn constant.BoolVal(v.Value), nil\n}\n\n// NoBreakpointError is returned when trying to\n// clear a breakpoint that does not exist.\ntype NoBreakpointError struct {\n\tAddr uint64\n}\n\nfunc (nbp NoBreakpointError) Error() string {","sourceCodeStart":503,"sourceCodeEnd":539,"githubUrl":"https://github.com/go-delve/delve/blob/a23773e6c31361e43246bc43a424ee009679b174/pkg/proc/breakpoints.go#L503-L539","documentation":"Error \"condition expression not boolean\" thrown in go-delve/delve.","triggerScenarios":"Thrown at pkg/proc/breakpoints.go:521 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"a23773e6c31361e43246bc43a424ee009679b174","analyzedAt":"2026-08-31T15:12:45.221Z","schemaVersion":2},"datasetVersion":"2026-08-31T19:17:28.585Z"}