1 files changed, 57 insertions, 0 deletions
diff --git a/v_windows/v/vlib/context/value.v b/v_windows/v/vlib/context/value.v
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index 0000000..19a2289
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+++ b/v_windows/v/vlib/context/value.v
@@ -0,0 +1,57 @@
+// This module defines the Context type, which carries deadlines, cancellation signals,
+// and other request-scoped values across API boundaries and between processes.
+// Based off:   https://github.com/golang/go/tree/master/src/context
+// Last commit: https://github.com/golang/go/commit/52bf14e0e8bdcd73f1ddfb0c4a1d0200097d3ba2
+module context
+
+import time
+
+// A ValueContext carries a key-value pair. It implements Value for that key and
+// delegates all other calls to the embedded Context.
+pub struct ValueContext {
+	key   string
+	value voidptr
+mut:
+	context Context
+}
+
+// with_value returns a copy of parent in which the value associated with key is
+// val.
+//
+// Use context Values only for request-scoped data that transits processes and
+// APIs, not for passing optional parameters to functions.
+//
+// The provided key must be comparable and should not be of type
+// string or any other built-in type to avoid collisions between
+// packages using context. Users of with_value should define their own
+// types for keys
+pub fn with_value(parent Context, key string, value voidptr) Context {
+	return &ValueContext{
+		context: parent
+		key: key
+		value: value
+	}
+}
+
+pub fn (ctx ValueContext) deadline() ?time.Time {
+	return ctx.context.deadline()
+}
+
+pub fn (ctx ValueContext) done() chan int {
+	return ctx.context.done()
+}
+
+pub fn (ctx ValueContext) err() IError {
+	return ctx.context.err()
+}
+
+pub fn (ctx ValueContext) value(key string) ?voidptr {
+	if ctx.key == key {
+		return ctx.value
+	}
+	return ctx.context.value(key)
+}
+
+pub fn (ctx ValueContext) str() string {
+	return context_name(ctx.context) + '.with_value'
+}