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Add functions packages support (#419)

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* Add packaged functions support

* Add tests for math.floor func

* Export FunctionsTable

* Extract func stuff into its own package

* Rename stuff

* Fix tests

* Move doc package to cmd/genji

* Adjust naming, typos
This commit is contained in:
Jean Hadrien Chabran
2021-07-17 13:07:16 +02:00
committed by GitHub
parent c0861ed2c5
commit e556fc3048
31 changed files with 870 additions and 238 deletions
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10
internal/sql/parser/expr_test.go
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@@ -6,6 +6,7 @@ import (
"github.com/genjidb/genji/document"
"github.com/genjidb/genji/internal/expr"
"github.com/genjidb/genji/internal/expr/functions"
"github.com/genjidb/genji/internal/sql/parser"
"github.com/genjidb/genji/internal/testutil"
"github.com/stretchr/testify/require"
@@ -152,7 +153,7 @@ func TestParserExpr(t *testing.T) {
{"with NULL", "age > NULL", expr.Gt(testutil.ParsePath(t, "age"), testutil.NullValue()), false},
// unary operators
{"CAST", "CAST(a.b[1][0] AS TEXT)", expr.CastFunc{Expr: testutil.ParsePath(t, "a.b[1][0]"), CastAs: document.TextValue}, false},
{"CAST", "CAST(a.b[1][0] AS TEXT)", functions.Cast{Expr: testutil.ParsePath(t, "a.b[1][0]"), CastAs: document.TextValue}, false},
{"NOT", "NOT 10", expr.Not(testutil.IntegerValue(10)), false},
{"NOT", "NOT NOT", nil, true},
{"NOT", "NOT NOT 10", expr.Not(expr.Not(testutil.IntegerValue(10))), false},
@@ -161,9 +162,10 @@ func TestParserExpr(t *testing.T) {
{"NEXT VALUE FOR", "NEXT VALUE FOR 10", nil, true},
// functions
{"pk() function", "pk()", &expr.PKFunc{}, false},
{"count(expr) function", "count(a)", &expr.CountFunc{Expr: testutil.ParsePath(t, "a")}, false},
{"count(*) function", "count(*)", &expr.CountFunc{Wildcard: true}, false},
{"pk() function", "pk()", &functions.PK{}, false},
{"count(expr) function", "count(a)", &functions.Count{Expr: testutil.ParsePath(t, "a")}, false},
{"count(*) function", "count(*)", &functions.Count{Wildcard: true}, false},
{"packaged function", "math.floor(1.2)", testutil.FunctionExpr(t, "math.floor", testutil.DoubleValue(1.2)), false},
}
for _, test := range tests {