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The list operator '<<' (append) and '>>' (prepend) have been replaced

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with the new operators '<+' and '+>' respectively.
'<<' and '>>' are now used only for left and right binary shit
respectively. Further, their priority has been increased moving them to
a higher priority than that of the assignment operator.
This commit is contained in:
Celestino Amoroso
2024-12-28 09:17:27 +01:00
parent cca3b76baa
commit d91e7eb979
8 changed files with 129 additions and 40 deletions
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t_list_test.go
+14 -14
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@@ -23,8 +23,8 @@ func TestListParser(t *testing.T) {
/* 9 */ {`mul([1,4,3.0,2])`, float64(24.0), nil},
/* 10 */ {`add([1,"hello"])`, nil, `add(): param nr 2 (2 in 1) has wrong type string, number expected`},
/* 11 */ {`[a=1,b=2,c=3] but a+b+c`, int64(6), nil},
/* 12 */ {`[1,2,3] << 2+2`, newListA(int64(1), int64(2), int64(3), int64(4)), nil},
/* 13 */ {`2-1 >> [2,3]`, newListA(int64(1), int64(2), int64(3)), nil},
/* 12 */ {`[1,2,3] <+ 2+2`, newListA(int64(1), int64(2), int64(3), int64(4)), nil},
/* 13 */ {`2-1 +> [2,3]`, newListA(int64(1), int64(2), int64(3)), nil},
/* 14 */ {`[1,2,3][1]`, int64(2), nil},
/* 15 */ {`ls=[1,2,3] but ls[1]`, int64(2), nil},
/* 16 */ {`ls=[1,2,3] but ls[-1]`, int64(3), nil},
@@ -33,8 +33,8 @@ func TestListParser(t *testing.T) {
/* 19 */ {`["a", "b", "c"]`, newList([]any{"a", "b", "c"}), nil},
/* 20 */ {`#["a", "b", "c"]`, int64(3), nil},
/* 21 */ {`"b" in ["a", "b", "c"]`, true, nil},
/* 22 */ {`a=[1,2]; (a)<<3`, newListA(int64(1), int64(2), int64(3)), nil},
/* 23 */ {`a=[1,2]; (a)<<3; a`, newListA(int64(1), int64(2)), nil},
/* 22 */ {`a=[1,2]; (a)<+3`, newListA(int64(1), int64(2), int64(3)), nil},
/* 23 */ {`a=[1,2]; (a)<+3; a`, newListA(int64(1), int64(2)), nil},
/* 24 */ {`["a","b","c","d"][1]`, "b", nil},
/* 25 */ {`["a","b","c","d"][1,1]`, nil, `[1:19] one index only is allowed`},
/* 26 */ {`[0,1,2,3,4][:]`, newListA(int64(0), int64(1), int64(2), int64(3), int64(4)), nil},
@@ -42,16 +42,16 @@ func TestListParser(t *testing.T) {
/* 28 */ {`2 << 3;`, int64(16), nil},
/* 29 */ {`but >> ["a", "b", "c"]`, nil, `[1:6] infix operator ">>" requires two non-nil operands, got 0`},
/* 30 */ {`2 >> 3;`, int64(0), nil},
/* 31 */ {`a=[1,2]; a<<3`, newListA(int64(1), int64(2), int64(3)), nil},
/* 33 */ {`a=[1,2]; 5>>a`, newListA(int64(5), int64(1), int64(2)), nil},
/* 34 */ {`L=[1,2]; L[0]=9; L`, newListA(int64(9), int64(2)), nil},
/* 35 */ {`L=[1,2]; L[5]=9; L`, nil, `index 5 out of bounds (0, 1)`},
/* 36 */ {`L=[1,2]; L[]=9; L`, nil, `[1:12] index/key specification expected, got [] [list]`},
/* 37 */ {`L=[1,2]; L[nil]=9;`, nil, `[1:12] index/key is nil`},
/* 38 */ {`[0,1,2,3,4][2:3]`, newListA(int64(2)), nil},
/* 39 */ {`[0,1,2,3,4][3:-1]`, newListA(int64(3)), nil},
/* 40 */ {`[0,1,2,3,4][-3:-1]`, newListA(int64(2), int64(3)), nil},
/* 41 */ {`[0,1,2,3,4][0:]`, newListA(int64(0), int64(1), int64(2), int64(3), int64(4)), nil},
/* 31 */ {`a=[1,2]; a<+3`, newListA(int64(1), int64(2), int64(3)), nil},
/* 32 */ {`a=[1,2]; 5+>a`, newListA(int64(5), int64(1), int64(2)), nil},
/* 33 */ {`L=[1,2]; L[0]=9; L`, newListA(int64(9), int64(2)), nil},
/* 34 */ {`L=[1,2]; L[5]=9; L`, nil, `index 5 out of bounds (0, 1)`},
/* 35 */ {`L=[1,2]; L[]=9; L`, nil, `[1:12] index/key specification expected, got [] [list]`},
/* 36 */ {`L=[1,2]; L[nil]=9;`, nil, `[1:12] index/key is nil`},
/* 37 */ {`[0,1,2,3,4][2:3]`, newListA(int64(2)), nil},
/* 38 */ {`[0,1,2,3,4][3:-1]`, newListA(int64(3)), nil},
/* 30 */ {`[0,1,2,3,4][-3:-1]`, newListA(int64(2), int64(3)), nil},
/* 40 */ {`[0,1,2,3,4][0:]`, newListA(int64(0), int64(1), int64(2), int64(3), int64(4)), nil},
}
// t.Setenv("EXPR_PATH", ".")