[experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863)

This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/).

1 files changed, 107 insertions, 0 deletions

diff --git a/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/cmp.go b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/cmp.go
new file mode 100644
index 000000000..15b62ca8e
--- /dev/null
+++ b/vendor/github.com/tetratelabs/wazero/internal/engine/wazevo/ssa/cmp.go
@@ -0,0 +1,107 @@
+package ssa
+
+// IntegerCmpCond represents a condition for integer comparison.
+type IntegerCmpCond byte
+
+const (
+	// IntegerCmpCondInvalid represents an invalid condition.
+	IntegerCmpCondInvalid IntegerCmpCond = iota
+	// IntegerCmpCondEqual represents "==".
+	IntegerCmpCondEqual
+	// IntegerCmpCondNotEqual represents "!=".
+	IntegerCmpCondNotEqual
+	// IntegerCmpCondSignedLessThan represents Signed "<".
+	IntegerCmpCondSignedLessThan
+	// IntegerCmpCondSignedGreaterThanOrEqual represents Signed ">=".
+	IntegerCmpCondSignedGreaterThanOrEqual
+	// IntegerCmpCondSignedGreaterThan represents Signed ">".
+	IntegerCmpCondSignedGreaterThan
+	// IntegerCmpCondSignedLessThanOrEqual represents Signed "<=".
+	IntegerCmpCondSignedLessThanOrEqual
+	// IntegerCmpCondUnsignedLessThan represents Unsigned "<".
+	IntegerCmpCondUnsignedLessThan
+	// IntegerCmpCondUnsignedGreaterThanOrEqual represents Unsigned ">=".
+	IntegerCmpCondUnsignedGreaterThanOrEqual
+	// IntegerCmpCondUnsignedGreaterThan represents Unsigned ">".
+	IntegerCmpCondUnsignedGreaterThan
+	// IntegerCmpCondUnsignedLessThanOrEqual represents Unsigned "<=".
+	IntegerCmpCondUnsignedLessThanOrEqual
+)
+
+// String implements fmt.Stringer.
+func (i IntegerCmpCond) String() string {
+	switch i {
+	case IntegerCmpCondEqual:
+		return "eq"
+	case IntegerCmpCondNotEqual:
+		return "neq"
+	case IntegerCmpCondSignedLessThan:
+		return "lt_s"
+	case IntegerCmpCondSignedGreaterThanOrEqual:
+		return "ge_s"
+	case IntegerCmpCondSignedGreaterThan:
+		return "gt_s"
+	case IntegerCmpCondSignedLessThanOrEqual:
+		return "le_s"
+	case IntegerCmpCondUnsignedLessThan:
+		return "lt_u"
+	case IntegerCmpCondUnsignedGreaterThanOrEqual:
+		return "ge_u"
+	case IntegerCmpCondUnsignedGreaterThan:
+		return "gt_u"
+	case IntegerCmpCondUnsignedLessThanOrEqual:
+		return "le_u"
+	default:
+		panic("invalid integer comparison condition")
+	}
+}
+
+// Signed returns true if the condition is signed integer comparison.
+func (i IntegerCmpCond) Signed() bool {
+	switch i {
+	case IntegerCmpCondSignedLessThan, IntegerCmpCondSignedGreaterThanOrEqual,
+		IntegerCmpCondSignedGreaterThan, IntegerCmpCondSignedLessThanOrEqual:
+		return true
+	default:
+		return false
+	}
+}
+
+type FloatCmpCond byte
+
+const (
+	// FloatCmpCondInvalid represents an invalid condition.
+	FloatCmpCondInvalid FloatCmpCond = iota
+	// FloatCmpCondEqual represents "==".
+	FloatCmpCondEqual
+	// FloatCmpCondNotEqual represents "!=".
+	FloatCmpCondNotEqual
+	// FloatCmpCondLessThan represents "<".
+	FloatCmpCondLessThan
+	// FloatCmpCondLessThanOrEqual represents "<=".
+	FloatCmpCondLessThanOrEqual
+	// FloatCmpCondGreaterThan represents ">".
+	FloatCmpCondGreaterThan
+	// FloatCmpCondGreaterThanOrEqual represents ">=".
+	FloatCmpCondGreaterThanOrEqual
+)
+
+// String implements fmt.Stringer.
+func (f FloatCmpCond) String() string {
+	switch f {
+	case FloatCmpCondEqual:
+		return "eq"
+	case FloatCmpCondNotEqual:
+		return "neq"
+	case FloatCmpCondLessThan:
+		return "lt"
+	case FloatCmpCondLessThanOrEqual:
+		return "le"
+	case FloatCmpCondGreaterThan:
+		return "gt"
+	case FloatCmpCondGreaterThanOrEqual:
+		return "ge"
+	default:
+		panic("invalid float comparison condition")
+	}
+}