1024 lines
26 KiB
Go
1024 lines
26 KiB
Go
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package parser
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import (
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"errors"
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"regexp"
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"strings"
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"testing"
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"github.com/robertkrimen/otto/ast"
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"github.com/robertkrimen/otto/file"
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"github.com/robertkrimen/otto/underscore"
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)
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func firstErr(err error) error {
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switch err := err.(type) {
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case ErrorList:
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return err[0]
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}
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return err
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}
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var matchBeforeAfterSeparator = regexp.MustCompile(`(?m)^[ \t]*---$`)
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func testParse(src string) (parser *_parser, program *ast.Program, err error) {
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return testParseWithMode(src, 0)
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}
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func testParseWithMode(src string, mode Mode) (parser *_parser, program *ast.Program, err error) {
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defer func() {
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if tmp := recover(); tmp != nil {
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switch tmp := tmp.(type) {
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case string:
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if strings.HasPrefix(tmp, "SyntaxError:") {
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parser = nil
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program = nil
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err = errors.New(tmp)
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return
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}
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}
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panic(tmp)
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}
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}()
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parser = _newParser("", src, 1, nil)
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parser.mode = mode
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program, err = parser.parse()
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return
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}
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func TestParseFile(t *testing.T) {
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tt(t, func() {
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_, err := ParseFile(nil, "", `/abc/`, 0)
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is(err, nil)
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_, err = ParseFile(nil, "", `/(?!def)abc/`, IgnoreRegExpErrors)
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is(err, nil)
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_, err = ParseFile(nil, "", `/(?!def)abc/`, 0)
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is(err, "(anonymous): Line 1:1 Invalid regular expression: re2: Invalid (?!) <lookahead>")
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_, err = ParseFile(nil, "", `/(?!def)abc/; return`, IgnoreRegExpErrors)
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is(err, "(anonymous): Line 1:15 Illegal return statement")
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_, err = ParseFile(nil, "/make-sure-file-path-is-returned-not-anonymous", `a..`, 0)
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is(err, "/make-sure-file-path-is-returned-not-anonymous: Line 1:3 Unexpected token .")
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})
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}
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func TestParseFunction(t *testing.T) {
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tt(t, func() {
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test := func(prm, bdy string, expect interface{}) *ast.FunctionLiteral {
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function, err := ParseFunction(prm, bdy)
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is(firstErr(err), expect)
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return function
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}
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test("a, b,c,d", "", nil)
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test("a, b;,c,d", "", "(anonymous): Line 1:15 Unexpected token ;")
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test("this", "", "(anonymous): Line 1:11 Unexpected token this")
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test("a, b, c, null", "", "(anonymous): Line 1:20 Unexpected token null")
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test("a, b,c,d", "return;", nil)
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test("a, b,c,d", "break;", "(anonymous): Line 2:1 Illegal break statement")
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test("a, b,c,d", "{}", nil)
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})
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}
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func TestParserErr(t *testing.T) {
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tt(t, func() {
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test := func(input string, expect interface{}) (*ast.Program, *_parser) {
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parser := _newParser("", input, 1, nil)
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program, err := parser.parse()
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is(firstErr(err), expect)
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return program, parser
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}
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program, parser := test("", nil)
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program, parser = test(`
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var abc;
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break; do {
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} while(true);
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`, "(anonymous): Line 3:9 Illegal break statement")
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{
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stmt := program.Body[1].(*ast.BadStatement)
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is(parser.position(stmt.From).Column, 9)
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is(parser.position(stmt.To).Column, 16)
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is(parser.slice(stmt.From, stmt.To), "break; ")
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}
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test("{", "(anonymous): Line 1:2 Unexpected end of input")
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test("}", "(anonymous): Line 1:1 Unexpected token }")
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test("3ea", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3in", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3in []", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3e", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3e+", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3e-", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3x", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("3x0", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("0x", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("09", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("018", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("01.0", "(anonymous): Line 1:3 Unexpected number")
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test("01a", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("0x3in[]", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\"Hello\nWorld\"", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\u203f = 10", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("x\\", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("x\\\\", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("x\\u005c", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("x\\u002a", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("x\\\\u002a", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("/\n", "(anonymous): Line 1:1 Invalid regular expression: missing /")
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test("var x = /(s/g", "(anonymous): Line 1:9 Invalid regular expression: Unterminated group")
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test("0 = 1", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
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test("func() = 1", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
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test("(1 + 1) = 2", "(anonymous): Line 1:2 Invalid left-hand side in assignment")
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test("1++", "(anonymous): Line 1:2 Invalid left-hand side in assignment")
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test("1--", "(anonymous): Line 1:2 Invalid left-hand side in assignment")
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test("--1", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
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test("for((1 + 1) in abc) def();", "(anonymous): Line 1:1 Invalid left-hand side in for-in")
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test("[", "(anonymous): Line 1:2 Unexpected end of input")
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test("[,", "(anonymous): Line 1:3 Unexpected end of input")
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test("1 + {", "(anonymous): Line 1:6 Unexpected end of input")
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test("1 + { abc:abc", "(anonymous): Line 1:14 Unexpected end of input")
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test("1 + { abc:abc,", "(anonymous): Line 1:15 Unexpected end of input")
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test("var abc = /\n/", "(anonymous): Line 1:11 Invalid regular expression: missing /")
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test("var abc = \"\n", "(anonymous): Line 1:11 Unexpected token ILLEGAL")
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test("var if = 0", "(anonymous): Line 1:5 Unexpected token if")
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test("abc + 0 = 1", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
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test("+abc = 1", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
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test("1 + (", "(anonymous): Line 1:6 Unexpected end of input")
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test("\n\n\n{", "(anonymous): Line 4:2 Unexpected end of input")
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test("\n/* Some multiline\ncomment */\n)", "(anonymous): Line 4:1 Unexpected token )")
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// TODO
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//{ set 1 }
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//{ get 2 }
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//({ set: s(if) { } })
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//({ set s(.) { } })
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//({ set: s() { } })
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//({ set: s(a, b) { } })
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//({ get: g(d) { } })
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//({ get i() { }, i: 42 })
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//({ i: 42, get i() { } })
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//({ set i(x) { }, i: 42 })
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//({ i: 42, set i(x) { } })
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//({ get i() { }, get i() { } })
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//({ set i(x) { }, set i(x) { } })
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test("function abc(if) {}", "(anonymous): Line 1:14 Unexpected token if")
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test("function abc(true) {}", "(anonymous): Line 1:14 Unexpected token true")
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test("function abc(false) {}", "(anonymous): Line 1:14 Unexpected token false")
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test("function abc(null) {}", "(anonymous): Line 1:14 Unexpected token null")
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test("function null() {}", "(anonymous): Line 1:10 Unexpected token null")
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test("function true() {}", "(anonymous): Line 1:10 Unexpected token true")
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test("function false() {}", "(anonymous): Line 1:10 Unexpected token false")
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test("function if() {}", "(anonymous): Line 1:10 Unexpected token if")
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test("a b;", "(anonymous): Line 1:3 Unexpected identifier")
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test("if.a", "(anonymous): Line 1:3 Unexpected token .")
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test("a if", "(anonymous): Line 1:3 Unexpected token if")
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test("a class", "(anonymous): Line 1:3 Unexpected reserved word")
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test("break\n", "(anonymous): Line 1:1 Illegal break statement")
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test("break 1;", "(anonymous): Line 1:7 Unexpected number")
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test("for (;;) { break 1; }", "(anonymous): Line 1:18 Unexpected number")
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test("continue\n", "(anonymous): Line 1:1 Illegal continue statement")
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test("continue 1;", "(anonymous): Line 1:10 Unexpected number")
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test("for (;;) { continue 1; }", "(anonymous): Line 1:21 Unexpected number")
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test("throw", "(anonymous): Line 1:1 Unexpected end of input")
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test("throw;", "(anonymous): Line 1:6 Unexpected token ;")
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test("throw \n", "(anonymous): Line 1:1 Unexpected end of input")
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test("for (var abc, def in {});", "(anonymous): Line 1:19 Unexpected token in")
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test("for ((abc in {});;);", nil)
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test("for ((abc in {}));", "(anonymous): Line 1:17 Unexpected token )")
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test("for (+abc in {});", "(anonymous): Line 1:1 Invalid left-hand side in for-in")
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test("if (false)", "(anonymous): Line 1:11 Unexpected end of input")
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test("if (false) abc(); else", "(anonymous): Line 1:23 Unexpected end of input")
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test("do", "(anonymous): Line 1:3 Unexpected end of input")
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test("while (false)", "(anonymous): Line 1:14 Unexpected end of input")
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test("for (;;)", "(anonymous): Line 1:9 Unexpected end of input")
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test("with (abc)", "(anonymous): Line 1:11 Unexpected end of input")
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test("try {}", "(anonymous): Line 1:1 Missing catch or finally after try")
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test("try {} catch {}", "(anonymous): Line 1:14 Unexpected token {")
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test("try {} catch () {}", "(anonymous): Line 1:15 Unexpected token )")
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test("\u203f = 1", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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// TODO
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// const x = 12, y;
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// const x, y = 12;
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// const x;
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// if(true) let a = 1;
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// if(true) const a = 1;
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test(`new abc()."def"`, "(anonymous): Line 1:11 Unexpected string")
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test("/*", "(anonymous): Line 1:3 Unexpected end of input")
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test("/**", "(anonymous): Line 1:4 Unexpected end of input")
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test("/*\n\n\n", "(anonymous): Line 4:1 Unexpected end of input")
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test("/*\n\n\n*", "(anonymous): Line 4:2 Unexpected end of input")
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test("/*abc", "(anonymous): Line 1:6 Unexpected end of input")
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test("/*abc *", "(anonymous): Line 1:9 Unexpected end of input")
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test("\n]", "(anonymous): Line 2:1 Unexpected token ]")
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test("\r\n]", "(anonymous): Line 2:1 Unexpected token ]")
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test("\n\r]", "(anonymous): Line 3:1 Unexpected token ]")
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test("//\r\n]", "(anonymous): Line 2:1 Unexpected token ]")
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test("//\n\r]", "(anonymous): Line 3:1 Unexpected token ]")
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test("/abc\\\n/", "(anonymous): Line 1:1 Invalid regular expression: missing /")
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test("//\r \n]", "(anonymous): Line 3:1 Unexpected token ]")
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test("/*\r\n*/]", "(anonymous): Line 2:3 Unexpected token ]")
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test("/*\r \n*/]", "(anonymous): Line 3:3 Unexpected token ]")
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test("\\\\", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\\u005c", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\\abc", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\\u0000", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\\u200c = []", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("\\u200D = []", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test(`"\`, "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test(`"\u`, "(anonymous): Line 1:1 Unexpected token ILLEGAL")
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test("return", "(anonymous): Line 1:1 Illegal return statement")
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test("continue", "(anonymous): Line 1:1 Illegal continue statement")
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test("break", "(anonymous): Line 1:1 Illegal break statement")
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test("switch (abc) { default: continue; }", "(anonymous): Line 1:25 Illegal continue statement")
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test("do { abc } *", "(anonymous): Line 1:12 Unexpected token *")
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test("while (true) { break abc; }", "(anonymous): Line 1:16 Undefined label 'abc'")
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test("while (true) { continue abc; }", "(anonymous): Line 1:16 Undefined label 'abc'")
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|
|
test("abc: while (true) { (function(){ break abc; }); }", "(anonymous): Line 1:34 Undefined label 'abc'")
|
||
|
|
|
||
|
|
test("abc: while (true) { (function(){ abc: break abc; }); }", nil)
|
||
|
|
|
||
|
|
test("abc: while (true) { (function(){ continue abc; }); }", "(anonymous): Line 1:34 Undefined label 'abc'")
|
||
|
|
|
||
|
|
test(`abc: if (0) break abc; else {}`, nil)
|
||
|
|
|
||
|
|
test(`abc: if (0) { break abc; } else {}`, nil)
|
||
|
|
|
||
|
|
test(`abc: if (0) { break abc } else {}`, nil)
|
||
|
|
|
||
|
|
test("abc: while (true) { abc: while (true) {} }", "(anonymous): Line 1:21 Label 'abc' already exists")
|
||
|
|
|
||
|
|
if false {
|
||
|
|
// TODO When strict mode is implemented
|
||
|
|
test("(function () { 'use strict'; delete abc; }())", "")
|
||
|
|
}
|
||
|
|
|
||
|
|
test("_: _: while (true) {]", "(anonymous): Line 1:4 Label '_' already exists")
|
||
|
|
|
||
|
|
test("_:\n_:\nwhile (true) {]", "(anonymous): Line 2:1 Label '_' already exists")
|
||
|
|
|
||
|
|
test("_:\n _:\nwhile (true) {]", "(anonymous): Line 2:4 Label '_' already exists")
|
||
|
|
|
||
|
|
test("/Xyzzy(?!Nothing happens)/",
|
||
|
|
"(anonymous): Line 1:1 Invalid regular expression: re2: Invalid (?!) <lookahead>")
|
||
|
|
|
||
|
|
test("function(){}", "(anonymous): Line 1:9 Unexpected token (")
|
||
|
|
|
||
|
|
test("\n/*/", "(anonymous): Line 2:4 Unexpected end of input")
|
||
|
|
|
||
|
|
test("/*/.source", "(anonymous): Line 1:11 Unexpected end of input")
|
||
|
|
|
||
|
|
test("/\\1/.source", "(anonymous): Line 1:1 Invalid regular expression: re2: Invalid \\1 <backreference>")
|
||
|
|
|
||
|
|
test("var class", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("var if", "(anonymous): Line 1:5 Unexpected token if")
|
||
|
|
|
||
|
|
test("object Object", "(anonymous): Line 1:8 Unexpected identifier")
|
||
|
|
|
||
|
|
test("[object Object]", "(anonymous): Line 1:9 Unexpected identifier")
|
||
|
|
|
||
|
|
test("\\u0xyz", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
|
||
|
|
|
||
|
|
test(`for (var abc, def in {}) {}`, "(anonymous): Line 1:19 Unexpected token in")
|
||
|
|
|
||
|
|
test(`for (abc, def in {}) {}`, "(anonymous): Line 1:1 Invalid left-hand side in for-in")
|
||
|
|
|
||
|
|
test(`for (var abc=def, ghi=("abc" in {}); true;) {}`, nil)
|
||
|
|
|
||
|
|
{
|
||
|
|
// Semicolon insertion
|
||
|
|
|
||
|
|
test("this\nif (1);", nil)
|
||
|
|
|
||
|
|
test("while (1) { break\nif (1); }", nil)
|
||
|
|
|
||
|
|
test("throw\nif (1);", "(anonymous): Line 1:1 Illegal newline after throw")
|
||
|
|
|
||
|
|
test("(function(){ return\nif (1); })", nil)
|
||
|
|
|
||
|
|
test("while (1) { continue\nif (1); }", nil)
|
||
|
|
|
||
|
|
test("debugger\nif (1);", nil)
|
||
|
|
}
|
||
|
|
|
||
|
|
{ // Reserved words
|
||
|
|
|
||
|
|
test("class", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.class = 1", nil)
|
||
|
|
test("var class;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("const", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.const = 1", nil)
|
||
|
|
test("var const;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("enum", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.enum = 1", nil)
|
||
|
|
test("var enum;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("export", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.export = 1", nil)
|
||
|
|
test("var export;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("extends", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.extends = 1", nil)
|
||
|
|
test("var extends;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("import", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.import = 1", nil)
|
||
|
|
test("var import;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
|
||
|
|
test("super", "(anonymous): Line 1:1 Unexpected reserved word")
|
||
|
|
test("abc.super = 1", nil)
|
||
|
|
test("var super;", "(anonymous): Line 1:5 Unexpected reserved word")
|
||
|
|
}
|
||
|
|
|
||
|
|
{ // Reserved words (strict)
|
||
|
|
|
||
|
|
test(`implements`, nil)
|
||
|
|
test(`abc.implements = 1`, nil)
|
||
|
|
test(`var implements;`, nil)
|
||
|
|
|
||
|
|
test(`interface`, nil)
|
||
|
|
test(`abc.interface = 1`, nil)
|
||
|
|
test(`var interface;`, nil)
|
||
|
|
|
||
|
|
test(`let`, nil)
|
||
|
|
test(`abc.let = 1`, nil)
|
||
|
|
test(`var let;`, nil)
|
||
|
|
|
||
|
|
test(`package`, nil)
|
||
|
|
test(`abc.package = 1`, nil)
|
||
|
|
test(`var package;`, nil)
|
||
|
|
|
||
|
|
test(`private`, nil)
|
||
|
|
test(`abc.private = 1`, nil)
|
||
|
|
test(`var private;`, nil)
|
||
|
|
|
||
|
|
test(`protected`, nil)
|
||
|
|
test(`abc.protected = 1`, nil)
|
||
|
|
test(`var protected;`, nil)
|
||
|
|
|
||
|
|
test(`public`, nil)
|
||
|
|
test(`abc.public = 1`, nil)
|
||
|
|
test(`var public;`, nil)
|
||
|
|
|
||
|
|
test(`static`, nil)
|
||
|
|
test(`abc.static = 1`, nil)
|
||
|
|
test(`var static;`, nil)
|
||
|
|
|
||
|
|
test(`yield`, nil)
|
||
|
|
test(`abc.yield = 1`, nil)
|
||
|
|
test(`var yield;`, nil)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestParser(t *testing.T) {
|
||
|
|
tt(t, func() {
|
||
|
|
test := func(source string, chk interface{}) *ast.Program {
|
||
|
|
_, program, err := testParse(source)
|
||
|
|
is(firstErr(err), chk)
|
||
|
|
return program
|
||
|
|
}
|
||
|
|
|
||
|
|
test(`
|
||
|
|
abc
|
||
|
|
--
|
||
|
|
[]
|
||
|
|
`, "(anonymous): Line 3:13 Invalid left-hand side in assignment")
|
||
|
|
|
||
|
|
test(`
|
||
|
|
abc--
|
||
|
|
[]
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("1\n[]\n", "(anonymous): Line 2:2 Unexpected token ]")
|
||
|
|
|
||
|
|
test(`
|
||
|
|
function abc() {
|
||
|
|
}
|
||
|
|
abc()
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
program := test("", nil)
|
||
|
|
|
||
|
|
test("//", nil)
|
||
|
|
|
||
|
|
test("/* */", nil)
|
||
|
|
|
||
|
|
test("/** **/", nil)
|
||
|
|
|
||
|
|
test("/*****/", nil)
|
||
|
|
|
||
|
|
test("/*", "(anonymous): Line 1:3 Unexpected end of input")
|
||
|
|
|
||
|
|
test("#", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
|
||
|
|
|
||
|
|
test("/**/#", "(anonymous): Line 1:5 Unexpected token ILLEGAL")
|
||
|
|
|
||
|
|
test("new +", "(anonymous): Line 1:5 Unexpected token +")
|
||
|
|
|
||
|
|
program = test(";", nil)
|
||
|
|
is(len(program.Body), 1)
|
||
|
|
is(program.Body[0].(*ast.EmptyStatement).Semicolon, file.Idx(1))
|
||
|
|
|
||
|
|
program = test(";;", nil)
|
||
|
|
is(len(program.Body), 2)
|
||
|
|
is(program.Body[0].(*ast.EmptyStatement).Semicolon, file.Idx(1))
|
||
|
|
is(program.Body[1].(*ast.EmptyStatement).Semicolon, file.Idx(2))
|
||
|
|
|
||
|
|
program = test("1.2", nil)
|
||
|
|
is(len(program.Body), 1)
|
||
|
|
is(program.Body[0].(*ast.ExpressionStatement).Expression.(*ast.NumberLiteral).Literal, "1.2")
|
||
|
|
|
||
|
|
program = test("/* */1.2", nil)
|
||
|
|
is(len(program.Body), 1)
|
||
|
|
is(program.Body[0].(*ast.ExpressionStatement).Expression.(*ast.NumberLiteral).Literal, "1.2")
|
||
|
|
|
||
|
|
program = test("\n", nil)
|
||
|
|
is(len(program.Body), 0)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
if (0) {
|
||
|
|
abc = 0
|
||
|
|
}
|
||
|
|
else abc = 0
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("if (0) abc = 0 else abc = 0", "(anonymous): Line 1:16 Unexpected token else")
|
||
|
|
|
||
|
|
test(`
|
||
|
|
if (0) {
|
||
|
|
abc = 0
|
||
|
|
} else abc = 0
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
if (0) {
|
||
|
|
abc = 1
|
||
|
|
} else {
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
do {
|
||
|
|
} while (true)
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
try {
|
||
|
|
} finally {
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
try {
|
||
|
|
} catch (abc) {
|
||
|
|
} finally {
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
try {
|
||
|
|
}
|
||
|
|
catch (abc) {
|
||
|
|
}
|
||
|
|
finally {
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`try {} catch (abc) {} finally {}`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
do {
|
||
|
|
do {
|
||
|
|
} while (0)
|
||
|
|
} while (0)
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
(function(){
|
||
|
|
try {
|
||
|
|
if (
|
||
|
|
1
|
||
|
|
) {
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
return 0
|
||
|
|
} finally {
|
||
|
|
}
|
||
|
|
})()
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("abc = ''\ndef", nil)
|
||
|
|
|
||
|
|
test("abc = 1\ndef", nil)
|
||
|
|
|
||
|
|
test("abc = Math\ndef", nil)
|
||
|
|
|
||
|
|
test(`"\'"`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
abc = function(){
|
||
|
|
}
|
||
|
|
abc = 0
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("abc.null = 0", nil)
|
||
|
|
|
||
|
|
test("0x41", nil)
|
||
|
|
|
||
|
|
test(`"\d"`, nil)
|
||
|
|
|
||
|
|
test(`(function(){return this})`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
Object.defineProperty(Array.prototype, "0", {
|
||
|
|
value: 100,
|
||
|
|
writable: false,
|
||
|
|
configurable: true
|
||
|
|
});
|
||
|
|
abc = [101];
|
||
|
|
abc.hasOwnProperty("0") && abc[0] === 101;
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`new abc()`, nil)
|
||
|
|
test(`new {}`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
limit = 4
|
||
|
|
result = 0
|
||
|
|
while (limit) {
|
||
|
|
limit = limit - 1
|
||
|
|
if (limit) {
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
result = result + 1
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
while (0) {
|
||
|
|
if (0) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("var \u0061\u0062\u0063 = 0", nil)
|
||
|
|
|
||
|
|
// 7_3_1
|
||
|
|
test("var test7_3_1\nabc = 66;", nil)
|
||
|
|
test("var test7_3_1\u2028abc = 66;", nil)
|
||
|
|
|
||
|
|
// 7_3_3
|
||
|
|
test("//\u2028 =;", "(anonymous): Line 2:2 Unexpected token =")
|
||
|
|
|
||
|
|
// 7_3_10
|
||
|
|
test("var abc = \u2029;", "(anonymous): Line 2:1 Unexpected token ;")
|
||
|
|
test("var abc = \\u2029;", "(anonymous): Line 1:11 Unexpected token ILLEGAL")
|
||
|
|
test("var \\u0061\\u0062\\u0063 = 0;", nil)
|
||
|
|
|
||
|
|
test("'", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
|
||
|
|
|
||
|
|
test("'\nstr\ning\n'", "(anonymous): Line 1:1 Unexpected token ILLEGAL")
|
||
|
|
|
||
|
|
// S7.6_A4.3_T1
|
||
|
|
test(`var $\u0030 = 0;`, nil)
|
||
|
|
|
||
|
|
// S7.6.1.1_A1.1
|
||
|
|
test(`switch = 1`, "(anonymous): Line 1:8 Unexpected token =")
|
||
|
|
|
||
|
|
// S7.8.3_A2.1_T1
|
||
|
|
test(`.0 === 0.0`, nil)
|
||
|
|
|
||
|
|
// 7.8.5-1
|
||
|
|
test("var regExp = /\\\rn/;", "(anonymous): Line 1:14 Invalid regular expression: missing /")
|
||
|
|
|
||
|
|
// S7.8.5_A1.1_T2
|
||
|
|
test("var regExp = /=/;", nil)
|
||
|
|
|
||
|
|
// S7.8.5_A1.2_T1
|
||
|
|
test("/*/", "(anonymous): Line 1:4 Unexpected end of input")
|
||
|
|
|
||
|
|
// Sbp_7.9_A9_T3
|
||
|
|
test(`
|
||
|
|
do {
|
||
|
|
;
|
||
|
|
} while (false) true
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
// S7.9_A10_T10
|
||
|
|
test(`
|
||
|
|
{a:1
|
||
|
|
} 3
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
abc
|
||
|
|
++def
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
// S7.9_A5.2_T1
|
||
|
|
test(`
|
||
|
|
for(false;false
|
||
|
|
) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
`, "(anonymous): Line 3:13 Unexpected token )")
|
||
|
|
|
||
|
|
// S7.9_A9_T8
|
||
|
|
test(`
|
||
|
|
do {};
|
||
|
|
while (false)
|
||
|
|
`, "(anonymous): Line 2:18 Unexpected token ;")
|
||
|
|
|
||
|
|
// S8.4_A5
|
||
|
|
test(`
|
||
|
|
"x\0y"
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
// S9.3.1_A6_T1
|
||
|
|
test(`
|
||
|
|
10e10000
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
// 10.4.2-1-5
|
||
|
|
test(`
|
||
|
|
"abc\
|
||
|
|
def"
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("'\\\n'", nil)
|
||
|
|
|
||
|
|
test("'\\\r\n'", nil)
|
||
|
|
|
||
|
|
//// 11.13.1-1-1
|
||
|
|
test("42 = 42;", "(anonymous): Line 1:1 Invalid left-hand side in assignment")
|
||
|
|
|
||
|
|
// S11.13.2_A4.2_T1.3
|
||
|
|
test(`
|
||
|
|
abc /= "1"
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
// 12.1-1
|
||
|
|
test(`
|
||
|
|
try{};catch(){}
|
||
|
|
`, "(anonymous): Line 2:13 Missing catch or finally after try")
|
||
|
|
|
||
|
|
// 12.1-3
|
||
|
|
test(`
|
||
|
|
try{};finally{}
|
||
|
|
`, "(anonymous): Line 2:13 Missing catch or finally after try")
|
||
|
|
|
||
|
|
// S12.6.3_A11.1_T3
|
||
|
|
test(`
|
||
|
|
while (true) {
|
||
|
|
break abc;
|
||
|
|
}
|
||
|
|
`, "(anonymous): Line 3:17 Undefined label 'abc'")
|
||
|
|
|
||
|
|
// S15.3_A2_T1
|
||
|
|
test(`var x / = 1;`, "(anonymous): Line 1:7 Unexpected token /")
|
||
|
|
|
||
|
|
test(`
|
||
|
|
function abc() {
|
||
|
|
if (0)
|
||
|
|
return;
|
||
|
|
else {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test("//\u2028 var =;", "(anonymous): Line 2:6 Unexpected token =")
|
||
|
|
|
||
|
|
test(`
|
||
|
|
throw
|
||
|
|
{}
|
||
|
|
`, "(anonymous): Line 2:13 Illegal newline after throw")
|
||
|
|
|
||
|
|
// S7.6.1.1_A1.11
|
||
|
|
test(`
|
||
|
|
function = 1
|
||
|
|
`, "(anonymous): Line 2:22 Unexpected token =")
|
||
|
|
|
||
|
|
// S7.8.3_A1.2_T1
|
||
|
|
test(`0e1`, nil)
|
||
|
|
|
||
|
|
test("abc = 1; abc\n++", "(anonymous): Line 2:3 Unexpected end of input")
|
||
|
|
|
||
|
|
// ---
|
||
|
|
|
||
|
|
test("({ get abc() {} })", nil)
|
||
|
|
|
||
|
|
test(`for (abc.def in {}) {}`, nil)
|
||
|
|
|
||
|
|
test(`while (true) { break }`, nil)
|
||
|
|
|
||
|
|
test(`while (true) { continue }`, nil)
|
||
|
|
|
||
|
|
test(`abc=/^(?:(\w+:)\/{2}(\w+(?:\.\w+)*\/?)|(.{0,2}\/{1}))?([/.]*?(?:[^?]+)?\/)?((?:[^/?]+)\.(\w+))(?:\?(\S+)?)?$/,def=/^(?:(\w+:)\/{2})|(.{0,2}\/{1})?([/.]*?(?:[^?]+)?\/?)?$/`, nil)
|
||
|
|
|
||
|
|
test(`(function() { try {} catch (err) {} finally {} return })`, nil)
|
||
|
|
|
||
|
|
test(`0xde0b6b3a7640080.toFixed(0)`, nil)
|
||
|
|
|
||
|
|
test(`/[^-._0-9A-Za-z\xb7\xc0-\xd6\xd8-\xf6\xf8-\u037d\u37f-\u1fff\u200c-\u200d\u203f\u2040\u2070-\u218f]/`, nil)
|
||
|
|
|
||
|
|
test(`/[\u0000-\u0008\u000B-\u000C\u000E-\u001F\uD800-\uDFFF\uFFFE-\uFFFF]/`, nil)
|
||
|
|
|
||
|
|
test("var abc = 1;\ufeff", nil)
|
||
|
|
|
||
|
|
test("\ufeff/* var abc = 1; */", nil)
|
||
|
|
|
||
|
|
test(`if (-0x8000000000000000<=abc&&abc<=0x8000000000000000) {}`, nil)
|
||
|
|
|
||
|
|
test(`(function(){debugger;return this;})`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
var abc = ""
|
||
|
|
debugger
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
var abc = /\[\]$/
|
||
|
|
debugger
|
||
|
|
`, nil)
|
||
|
|
|
||
|
|
test(`
|
||
|
|
var abc = 1 /
|
||
|
|
2
|
||
|
|
debugger
|
||
|
|
`, nil)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func Test_parseStringLiteral(t *testing.T) {
|
||
|
|
tt(t, func() {
|
||
|
|
test := func(have, want string) {
|
||
|
|
have, err := parseStringLiteral(have)
|
||
|
|
is(err, nil)
|
||
|
|
is(have, want)
|
||
|
|
}
|
||
|
|
|
||
|
|
test("", "")
|
||
|
|
|
||
|
|
test("1(\\\\d+)", "1(\\d+)")
|
||
|
|
|
||
|
|
test("\\u2029", "\u2029")
|
||
|
|
|
||
|
|
test("abc\\uFFFFabc", "abc\uFFFFabc")
|
||
|
|
|
||
|
|
test("[First line \\\nSecond line \\\n Third line\\\n. ]",
|
||
|
|
"[First line Second line Third line. ]")
|
||
|
|
|
||
|
|
test("\\u007a\\x79\\u000a\\x78", "zy\nx")
|
||
|
|
|
||
|
|
// S7.8.4_A4.2_T3
|
||
|
|
test("\\a", "a")
|
||
|
|
test("\u0410", "\u0410")
|
||
|
|
|
||
|
|
// S7.8.4_A5.1_T1
|
||
|
|
test("\\0", "\u0000")
|
||
|
|
|
||
|
|
// S8.4_A5
|
||
|
|
test("\u0000", "\u0000")
|
||
|
|
|
||
|
|
// 15.5.4.20
|
||
|
|
test("'abc'\\\n'def'", "'abc''def'")
|
||
|
|
|
||
|
|
// 15.5.4.20-4-1
|
||
|
|
test("'abc'\\\r\n'def'", "'abc''def'")
|
||
|
|
|
||
|
|
// Octal
|
||
|
|
test("\\0", "\000")
|
||
|
|
test("\\00", "\000")
|
||
|
|
test("\\000", "\000")
|
||
|
|
test("\\09", "\0009")
|
||
|
|
test("\\009", "\0009")
|
||
|
|
test("\\0009", "\0009")
|
||
|
|
test("\\1", "\001")
|
||
|
|
test("\\01", "\001")
|
||
|
|
test("\\001", "\001")
|
||
|
|
test("\\0011", "\0011")
|
||
|
|
test("\\1abc", "\001abc")
|
||
|
|
|
||
|
|
test("\\\u4e16", "\u4e16")
|
||
|
|
|
||
|
|
// err
|
||
|
|
test = func(have, want string) {
|
||
|
|
have, err := parseStringLiteral(have)
|
||
|
|
is(err.Error(), want)
|
||
|
|
is(have, "")
|
||
|
|
}
|
||
|
|
|
||
|
|
test(`\u`, `invalid escape: \u: len("") != 4`)
|
||
|
|
test(`\u0`, `invalid escape: \u: len("0") != 4`)
|
||
|
|
test(`\u00`, `invalid escape: \u: len("00") != 4`)
|
||
|
|
test(`\u000`, `invalid escape: \u: len("000") != 4`)
|
||
|
|
|
||
|
|
test(`\x`, `invalid escape: \x: len("") != 2`)
|
||
|
|
test(`\x0`, `invalid escape: \x: len("0") != 2`)
|
||
|
|
test(`\x0`, `invalid escape: \x: len("0") != 2`)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func Test_parseNumberLiteral(t *testing.T) {
|
||
|
|
tt(t, func() {
|
||
|
|
test := func(input string, expect interface{}) {
|
||
|
|
result, err := parseNumberLiteral(input)
|
||
|
|
is(err, nil)
|
||
|
|
is(result, expect)
|
||
|
|
}
|
||
|
|
|
||
|
|
test("0", 0)
|
||
|
|
|
||
|
|
test("0x8000000000000000", float64(9.223372036854776e+18))
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestPosition(t *testing.T) {
|
||
|
|
tt(t, func() {
|
||
|
|
parser := _newParser("", "// Lorem ipsum", 1, nil)
|
||
|
|
|
||
|
|
// Out of range, idx0 (error condition)
|
||
|
|
is(parser.slice(0, 1), "")
|
||
|
|
is(parser.slice(0, 10), "")
|
||
|
|
|
||
|
|
// Out of range, idx1 (error condition)
|
||
|
|
is(parser.slice(1, 128), "")
|
||
|
|
|
||
|
|
is(parser.str[0:0], "")
|
||
|
|
is(parser.slice(1, 1), "")
|
||
|
|
|
||
|
|
is(parser.str[0:1], "/")
|
||
|
|
is(parser.slice(1, 2), "/")
|
||
|
|
|
||
|
|
is(parser.str[0:14], "// Lorem ipsum")
|
||
|
|
is(parser.slice(1, 15), "// Lorem ipsum")
|
||
|
|
|
||
|
|
parser = _newParser("", "(function(){ return 0; })", 1, nil)
|
||
|
|
program, err := parser.parse()
|
||
|
|
is(err, nil)
|
||
|
|
|
||
|
|
var node ast.Node
|
||
|
|
node = program.Body[0].(*ast.ExpressionStatement).Expression.(*ast.FunctionLiteral)
|
||
|
|
is(node.Idx0(), file.Idx(2))
|
||
|
|
is(node.Idx1(), file.Idx(25))
|
||
|
|
is(parser.slice(node.Idx0(), node.Idx1()), "function(){ return 0; }")
|
||
|
|
is(parser.slice(node.Idx0(), node.Idx1()+1), "function(){ return 0; })")
|
||
|
|
is(parser.slice(node.Idx0(), node.Idx1()+2), "")
|
||
|
|
is(node.(*ast.FunctionLiteral).Source, "function(){ return 0; }")
|
||
|
|
|
||
|
|
node = program
|
||
|
|
is(node.Idx0(), file.Idx(2))
|
||
|
|
is(node.Idx1(), file.Idx(25))
|
||
|
|
is(parser.slice(node.Idx0(), node.Idx1()), "function(){ return 0; }")
|
||
|
|
|
||
|
|
parser = _newParser("", "(function(){ return abc; })", 1, nil)
|
||
|
|
program, err = parser.parse()
|
||
|
|
is(err, nil)
|
||
|
|
node = program.Body[0].(*ast.ExpressionStatement).Expression.(*ast.FunctionLiteral)
|
||
|
|
is(node.(*ast.FunctionLiteral).Source, "function(){ return abc; }")
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func BenchmarkParser(b *testing.B) {
|
||
|
|
src := underscore.Source()
|
||
|
|
b.ResetTimer()
|
||
|
|
|
||
|
|
for i := 0; i < b.N; i++ {
|
||
|
|
parser := _newParser("", src, 1, nil)
|
||
|
|
parser.parse()
|
||
|
|
}
|
||
|
|
}
|