1df5dc2e93
### Background #1102 changed how `Interpreter.Use` interprets export paths such that the last path component is stripped and used as the package name. This resulted in #1139 - attempting to Use an export with only one path component, such as `foo`, would result in the import path being `.`. ### Breaking API Change This PR changes the signature of `Interpreter.Use` from `Use(Exports)` to `Use(Exports) error`. ### Fix for #1139 With this PR, if Use is called with an incomplete export path, such as `foo`, Use will return an error.
50 lines
842 B
Go
50 lines
842 B
Go
package interp_test
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import (
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"log"
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"github.com/traefik/yaegi/interp"
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"github.com/traefik/yaegi/stdlib"
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)
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func ExampleInterpreter_self() {
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i := interp.New(interp.Options{})
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if err := i.Use(stdlib.Symbols); err != nil {
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log.Fatal(err)
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}
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if err := i.Use(interp.Symbols); err != nil {
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log.Fatal(err)
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}
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_, err := i.Eval(`import (
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"fmt"
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"log"
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// Import interp to gain access to Self.
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"github.com/traefik/yaegi/interp"
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)`)
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if err != nil {
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log.Fatal(err)
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}
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_, err = i.Eval(`
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// Evaluate code directly.
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fmt.Println("Hello Yaegi from Go")
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// Evaluate code indirectly via the Self access point.
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_, err := interp.Self.Eval("fmt.Println(\"Hello Yaegi from Yaegi\")")
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if err != nil {
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log.Fatal(err)
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}
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`)
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if err != nil {
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log.Fatal(err)
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}
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// Output:
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//
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// Hello Yaegi from Go
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// Hello Yaegi from Yaegi
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}
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