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doc: fix words about TerminalError #65

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Apr 15, 2023
Merged

doc: fix words about TerminalError #65

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9 changes: 5 additions & 4 deletions types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,14 +12,15 @@ import (
)

// TerminalError is a standard error interface. For fallible injectors,
// TerminalError must one of the return values.
// TerminalError must be one of the return values.
//
// A non-nil return value terminates the handler call chain. The
// TerminalError return value gets converted to a regular error value
// TerminalError return value gets converted to a regular error value (type=error)
// and (like other return values) it must be consumed by an upstream handler
// or the invoke function.
// or the invoke function. Essentially marking an error return as a TerminalError
// causes special behavior but the effective type is just error.
//
// Functions that return TerminalError do count as having no outputs and
// Functions that return just TerminalError count as having no outputs and
// thus they are treated as specially required if they're in the RUN set.
//
// Note: wrapper functions should not return TerminalError because such
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