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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package context
import (
"context"
"errors"
"time"
"code.gitea.io/gitea/modules/log"
)
var _ context.Context = TemplateContext(nil)
func NewTemplateContext(ctx context.Context) TemplateContext {
return TemplateContext{"_ctx": ctx}
}
func (c TemplateContext) parentContext() context.Context {
return c["_ctx"].(context.Context)
}
func (c TemplateContext) Deadline() (deadline time.Time, ok bool) {
return c.parentContext().Deadline()
}
func (c TemplateContext) Done() <-chan struct{} {
return c.parentContext().Done()
}
func (c TemplateContext) Err() error {
return c.parentContext().Err()
}
func (c TemplateContext) Value(key any) any {
return c.parentContext().Value(key)
}
// DataRaceCheck checks whether the template context function "ctx()" returns the consistent context
// as the current template's rendering context (request context), to help to find data race issues as early as possible.
// When the code is proven to be correct and stable, this function should be removed.
func (c TemplateContext) DataRaceCheck(dataCtx context.Context) (string, error) {
if c.parentContext() != dataCtx {
log.Error("TemplateContext.DataRaceCheck: parent context mismatch\n%s", log.Stack(2))
return "", errors.New("parent context mismatch")
}
return "", nil
}
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