1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/signature.go b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/signature.go
new file mode 100644
index 000000000..43483395a
--- /dev/null
+++ b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/signature.go
@@ -0,0 +1,49 @@
+package ssa
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Signature is a function prototype.
+type Signature struct {
+	// ID is a unique identifier for this signature used to lookup.
+	ID SignatureID
+	// Params and Results are the types of the parameters and results of the function.
+	Params, Results []Type
+
+	// used is true if this is used by the currently-compiled function.
+	// Debugging only.
+	used bool
+}
+
+// String implements fmt.Stringer.
+func (s *Signature) String() string {
+	str := strings.Builder{}
+	str.WriteString(s.ID.String())
+	str.WriteString(": ")
+	if len(s.Params) > 0 {
+		for _, typ := range s.Params {
+			str.WriteString(typ.String())
+		}
+	} else {
+		str.WriteByte('v')
+	}
+	str.WriteByte('_')
+	if len(s.Results) > 0 {
+		for _, typ := range s.Results {
+			str.WriteString(typ.String())
+		}
+	} else {
+		str.WriteByte('v')
+	}
+	return str.String()
+}
+
+// SignatureID is an unique identifier used to lookup.
+type SignatureID int
+
+// String implements fmt.Stringer.
+func (s SignatureID) String() string {
+	return fmt.Sprintf("sig%d", s)
+}