mirror of https://go.googlesource.com/go
1127 lines
35 KiB
Go
1127 lines
35 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package scanner
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import (
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"go/token"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"testing"
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)
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var fset = token.NewFileSet()
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const /* class */ (
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special = iota
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literal
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operator
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keyword
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)
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func tokenclass(tok token.Token) int {
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switch {
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case tok.IsLiteral():
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return literal
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case tok.IsOperator():
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return operator
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case tok.IsKeyword():
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return keyword
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}
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return special
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}
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type elt struct {
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tok token.Token
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lit string
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class int
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}
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var tokens = []elt{
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// Special tokens
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{token.COMMENT, "/* a comment */", special},
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{token.COMMENT, "// a comment \n", special},
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{token.COMMENT, "/*\r*/", special},
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{token.COMMENT, "/**\r/*/", special}, // issue 11151
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{token.COMMENT, "/**\r\r/*/", special},
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{token.COMMENT, "//\r\n", special},
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// Identifiers and basic type literals
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{token.IDENT, "foobar", literal},
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{token.IDENT, "a۰۱۸", literal},
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{token.IDENT, "foo६४", literal},
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{token.IDENT, "bar９８７６", literal},
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{token.IDENT, "ŝ", literal}, // was bug (issue 4000)
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{token.IDENT, "ŝfoo", literal}, // was bug (issue 4000)
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{token.INT, "0", literal},
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{token.INT, "1", literal},
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{token.INT, "123456789012345678890", literal},
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{token.INT, "01234567", literal},
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{token.INT, "0xcafebabe", literal},
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{token.FLOAT, "0.", literal},
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{token.FLOAT, ".0", literal},
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{token.FLOAT, "3.14159265", literal},
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{token.FLOAT, "1e0", literal},
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{token.FLOAT, "1e+100", literal},
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{token.FLOAT, "1e-100", literal},
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{token.FLOAT, "2.71828e-1000", literal},
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{token.IMAG, "0i", literal},
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{token.IMAG, "1i", literal},
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{token.IMAG, "012345678901234567889i", literal},
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{token.IMAG, "123456789012345678890i", literal},
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{token.IMAG, "0.i", literal},
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{token.IMAG, ".0i", literal},
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{token.IMAG, "3.14159265i", literal},
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{token.IMAG, "1e0i", literal},
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{token.IMAG, "1e+100i", literal},
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{token.IMAG, "1e-100i", literal},
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{token.IMAG, "2.71828e-1000i", literal},
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{token.CHAR, "'a'", literal},
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{token.CHAR, "'\\000'", literal},
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{token.CHAR, "'\\xFF'", literal},
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{token.CHAR, "'\\uff16'", literal},
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{token.CHAR, "'\\U0000ff16'", literal},
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{token.STRING, "`foobar`", literal},
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{token.STRING, "`" + `foo
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bar` +
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"`",
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literal,
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},
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{token.STRING, "`\r`", literal},
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{token.STRING, "`foo\r\nbar`", literal},
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// Operators and delimiters
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{token.ADD, "+", operator},
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{token.SUB, "-", operator},
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{token.MUL, "*", operator},
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{token.QUO, "/", operator},
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{token.REM, "%", operator},
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{token.AND, "&", operator},
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{token.OR, "|", operator},
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{token.XOR, "^", operator},
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{token.SHL, "<<", operator},
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{token.SHR, ">>", operator},
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{token.AND_NOT, "&^", operator},
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{token.ADD_ASSIGN, "+=", operator},
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{token.SUB_ASSIGN, "-=", operator},
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{token.MUL_ASSIGN, "*=", operator},
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{token.QUO_ASSIGN, "/=", operator},
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{token.REM_ASSIGN, "%=", operator},
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{token.AND_ASSIGN, "&=", operator},
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{token.OR_ASSIGN, "|=", operator},
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{token.XOR_ASSIGN, "^=", operator},
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{token.SHL_ASSIGN, "<<=", operator},
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{token.SHR_ASSIGN, ">>=", operator},
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{token.AND_NOT_ASSIGN, "&^=", operator},
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{token.LAND, "&&", operator},
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{token.LOR, "||", operator},
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{token.ARROW, "<-", operator},
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{token.INC, "++", operator},
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{token.DEC, "--", operator},
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{token.EQL, "==", operator},
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{token.LSS, "<", operator},
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{token.GTR, ">", operator},
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{token.ASSIGN, "=", operator},
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{token.NOT, "!", operator},
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{token.NEQ, "!=", operator},
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{token.LEQ, "<=", operator},
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{token.GEQ, ">=", operator},
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{token.DEFINE, ":=", operator},
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{token.ELLIPSIS, "...", operator},
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{token.LPAREN, "(", operator},
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{token.LBRACK, "[", operator},
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{token.LBRACE, "{", operator},
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{token.COMMA, ",", operator},
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{token.PERIOD, ".", operator},
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{token.RPAREN, ")", operator},
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{token.RBRACK, "]", operator},
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{token.RBRACE, "}", operator},
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{token.SEMICOLON, ";", operator},
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{token.COLON, ":", operator},
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{token.TILDE, "~", operator},
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// Keywords
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{token.BREAK, "break", keyword},
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{token.CASE, "case", keyword},
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{token.CHAN, "chan", keyword},
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{token.CONST, "const", keyword},
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{token.CONTINUE, "continue", keyword},
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{token.DEFAULT, "default", keyword},
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{token.DEFER, "defer", keyword},
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{token.ELSE, "else", keyword},
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{token.FALLTHROUGH, "fallthrough", keyword},
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{token.FOR, "for", keyword},
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{token.FUNC, "func", keyword},
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{token.GO, "go", keyword},
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{token.GOTO, "goto", keyword},
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{token.IF, "if", keyword},
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{token.IMPORT, "import", keyword},
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{token.INTERFACE, "interface", keyword},
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{token.MAP, "map", keyword},
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{token.PACKAGE, "package", keyword},
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{token.RANGE, "range", keyword},
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{token.RETURN, "return", keyword},
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{token.SELECT, "select", keyword},
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{token.STRUCT, "struct", keyword},
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{token.SWITCH, "switch", keyword},
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{token.TYPE, "type", keyword},
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{token.VAR, "var", keyword},
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}
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const whitespace = " \t \n\n\n" // to separate tokens
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var source = func() []byte {
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var src []byte
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for _, t := range tokens {
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src = append(src, t.lit...)
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src = append(src, whitespace...)
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}
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return src
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}()
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func newlineCount(s string) int {
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n := 0
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for i := 0; i < len(s); i++ {
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if s[i] == '\n' {
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n++
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}
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}
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return n
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}
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func checkPos(t *testing.T, lit string, p token.Pos, expected token.Position) {
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pos := fset.Position(p)
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// Check cleaned filenames so that we don't have to worry about
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// different os.PathSeparator values.
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if pos.Filename != expected.Filename && filepath.Clean(pos.Filename) != filepath.Clean(expected.Filename) {
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t.Errorf("bad filename for %q: got %s, expected %s", lit, pos.Filename, expected.Filename)
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}
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if pos.Offset != expected.Offset {
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t.Errorf("bad position for %q: got %d, expected %d", lit, pos.Offset, expected.Offset)
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}
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if pos.Line != expected.Line {
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t.Errorf("bad line for %q: got %d, expected %d", lit, pos.Line, expected.Line)
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}
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if pos.Column != expected.Column {
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t.Errorf("bad column for %q: got %d, expected %d", lit, pos.Column, expected.Column)
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}
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}
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// Verify that calling Scan() provides the correct results.
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func TestScan(t *testing.T) {
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whitespace_linecount := newlineCount(whitespace)
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// error handler
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eh := func(_ token.Position, msg string) {
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t.Errorf("error handler called (msg = %s)", msg)
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}
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// verify scan
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var s Scanner
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s.Init(fset.AddFile("", fset.Base(), len(source)), source, eh, ScanComments|dontInsertSemis)
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// set up expected position
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epos := token.Position{
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Filename: "",
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Offset: 0,
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Line: 1,
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Column: 1,
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}
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index := 0
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for {
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pos, tok, lit := s.Scan()
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// check position
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if tok == token.EOF {
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// correction for EOF
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epos.Line = newlineCount(string(source))
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epos.Column = 2
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}
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checkPos(t, lit, pos, epos)
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// check token
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e := elt{token.EOF, "", special}
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if index < len(tokens) {
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e = tokens[index]
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index++
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}
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if tok != e.tok {
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t.Errorf("bad token for %q: got %s, expected %s", lit, tok, e.tok)
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}
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// check token class
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if tokenclass(tok) != e.class {
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t.Errorf("bad class for %q: got %d, expected %d", lit, tokenclass(tok), e.class)
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}
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// check literal
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elit := ""
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switch e.tok {
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case token.COMMENT:
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// no CRs in comments
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elit = string(stripCR([]byte(e.lit), e.lit[1] == '*'))
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//-style comment literal doesn't contain newline
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if elit[1] == '/' {
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elit = elit[0 : len(elit)-1]
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}
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case token.IDENT:
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elit = e.lit
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case token.SEMICOLON:
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elit = ";"
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default:
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if e.tok.IsLiteral() {
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// no CRs in raw string literals
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elit = e.lit
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if elit[0] == '`' {
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elit = string(stripCR([]byte(elit), false))
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}
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} else if e.tok.IsKeyword() {
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elit = e.lit
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}
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}
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if lit != elit {
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t.Errorf("bad literal for %q: got %q, expected %q", lit, lit, elit)
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}
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if tok == token.EOF {
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break
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}
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// update position
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epos.Offset += len(e.lit) + len(whitespace)
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epos.Line += newlineCount(e.lit) + whitespace_linecount
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}
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if s.ErrorCount != 0 {
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t.Errorf("found %d errors", s.ErrorCount)
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}
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}
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func TestStripCR(t *testing.T) {
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for _, test := range []struct{ have, want string }{
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{"//\n", "//\n"},
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{"//\r\n", "//\n"},
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{"//\r\r\r\n", "//\n"},
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{"//\r*\r/\r\n", "//*/\n"},
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{"/**/", "/**/"},
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{"/*\r/*/", "/*/*/"},
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{"/*\r*/", "/**/"},
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{"/**\r/*/", "/**\r/*/"},
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{"/*\r/\r*\r/*/", "/*/*\r/*/"},
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{"/*\r\r\r\r*/", "/**/"},
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} {
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got := string(stripCR([]byte(test.have), len(test.have) >= 2 && test.have[1] == '*'))
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if got != test.want {
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t.Errorf("stripCR(%q) = %q; want %q", test.have, got, test.want)
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}
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}
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}
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func checkSemi(t *testing.T, input, want string, mode Mode) {
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if mode&ScanComments == 0 {
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want = strings.ReplaceAll(want, "COMMENT ", "")
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want = strings.ReplaceAll(want, " COMMENT", "") // if at end
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want = strings.ReplaceAll(want, "COMMENT", "") // if sole token
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}
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file := fset.AddFile("TestSemis", fset.Base(), len(input))
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var scan Scanner
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scan.Init(file, []byte(input), nil, mode)
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var tokens []string
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for {
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pos, tok, lit := scan.Scan()
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if tok == token.EOF {
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break
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}
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if tok == token.SEMICOLON && lit != ";" {
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// Artificial semicolon:
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// assert that position is EOF or that of a newline.
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off := file.Offset(pos)
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if off != len(input) && input[off] != '\n' {
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t.Errorf("scanning <<%s>>, got SEMICOLON at offset %d, want newline or EOF", input, off)
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}
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}
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lit = tok.String() // "\n" => ";"
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tokens = append(tokens, lit)
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}
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if got := strings.Join(tokens, " "); got != want {
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t.Errorf("scanning <<%s>>, got [%s], want [%s]", input, got, want)
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}
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}
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var semicolonTests = [...]struct{ input, want string }{
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{"", ""},
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{"\ufeff;", ";"}, // first BOM is ignored
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{";", ";"},
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{"foo\n", "IDENT ;"},
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{"123\n", "INT ;"},
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{"1.2\n", "FLOAT ;"},
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{"'x'\n", "CHAR ;"},
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{`"x"` + "\n", "STRING ;"},
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{"`x`\n", "STRING ;"},
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{"+\n", "+"},
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{"-\n", "-"},
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{"*\n", "*"},
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{"/\n", "/"},
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{"%\n", "%"},
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{"&\n", "&"},
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{"|\n", "|"},
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{"^\n", "^"},
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{"<<\n", "<<"},
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{">>\n", ">>"},
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{"&^\n", "&^"},
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{"+=\n", "+="},
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{"-=\n", "-="},
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{"*=\n", "*="},
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{"/=\n", "/="},
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{"%=\n", "%="},
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{"&=\n", "&="},
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{"|=\n", "|="},
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{"^=\n", "^="},
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{"<<=\n", "<<="},
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{">>=\n", ">>="},
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{"&^=\n", "&^="},
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{"&&\n", "&&"},
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{"||\n", "||"},
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{"<-\n", "<-"},
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{"++\n", "++ ;"},
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{"--\n", "-- ;"},
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{"==\n", "=="},
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{"<\n", "<"},
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{">\n", ">"},
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{"=\n", "="},
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{"!\n", "!"},
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{"!=\n", "!="},
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{"<=\n", "<="},
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{">=\n", ">="},
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{":=\n", ":="},
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{"...\n", "..."},
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||
|
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{"(\n", "("},
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||
{"[\n", "["},
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{"{\n", "{"},
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{",\n", ","},
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||
{".\n", "."},
|
||
|
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{")\n", ") ;"},
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{"]\n", "] ;"},
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{"}\n", "} ;"},
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{";\n", ";"},
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{":\n", ":"},
|
||
|
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{"break\n", "break ;"},
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{"case\n", "case"},
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||
{"chan\n", "chan"},
|
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{"const\n", "const"},
|
||
{"continue\n", "continue ;"},
|
||
|
||
{"default\n", "default"},
|
||
{"defer\n", "defer"},
|
||
{"else\n", "else"},
|
||
{"fallthrough\n", "fallthrough ;"},
|
||
{"for\n", "for"},
|
||
|
||
{"func\n", "func"},
|
||
{"go\n", "go"},
|
||
{"goto\n", "goto"},
|
||
{"if\n", "if"},
|
||
{"import\n", "import"},
|
||
|
||
{"interface\n", "interface"},
|
||
{"map\n", "map"},
|
||
{"package\n", "package"},
|
||
{"range\n", "range"},
|
||
{"return\n", "return ;"},
|
||
|
||
{"select\n", "select"},
|
||
{"struct\n", "struct"},
|
||
{"switch\n", "switch"},
|
||
{"type\n", "type"},
|
||
{"var\n", "var"},
|
||
|
||
{"foo//comment\n", "IDENT COMMENT ;"},
|
||
{"foo//comment", "IDENT COMMENT ;"},
|
||
{"foo/*comment*/\n", "IDENT COMMENT ;"},
|
||
{"foo/*\n*/", "IDENT COMMENT ;"},
|
||
{"foo/*comment*/ \n", "IDENT COMMENT ;"},
|
||
{"foo/*\n*/ ", "IDENT COMMENT ;"},
|
||
|
||
{"foo // comment\n", "IDENT COMMENT ;"},
|
||
{"foo // comment", "IDENT COMMENT ;"},
|
||
{"foo /*comment*/\n", "IDENT COMMENT ;"},
|
||
{"foo /*\n*/", "IDENT COMMENT ;"},
|
||
{"foo /* */ /* \n */ bar/**/\n", "IDENT COMMENT COMMENT ; IDENT COMMENT ;"},
|
||
{"foo /*0*/ /*1*/ /*2*/\n", "IDENT COMMENT COMMENT COMMENT ;"},
|
||
|
||
{"foo /*comment*/ \n", "IDENT COMMENT ;"},
|
||
{"foo /*0*/ /*1*/ /*2*/ \n", "IDENT COMMENT COMMENT COMMENT ;"},
|
||
{"foo /**/ /*-------------*/ /*----\n*/bar /* \n*/baa\n", "IDENT COMMENT COMMENT COMMENT ; IDENT COMMENT ; IDENT ;"},
|
||
{"foo /* an EOF terminates a line */", "IDENT COMMENT ;"},
|
||
{"foo /* an EOF terminates a line */ /*", "IDENT COMMENT COMMENT ;"},
|
||
{"foo /* an EOF terminates a line */ //", "IDENT COMMENT COMMENT ;"},
|
||
|
||
{"package main\n\nfunc main() {\n\tif {\n\t\treturn /* */ }\n}\n", "package IDENT ; func IDENT ( ) { if { return COMMENT } ; } ;"},
|
||
{"package main", "package IDENT ;"},
|
||
}
|
||
|
||
func TestSemicolons(t *testing.T) {
|
||
for _, test := range semicolonTests {
|
||
input, want := test.input, test.want
|
||
checkSemi(t, input, want, 0)
|
||
checkSemi(t, input, want, ScanComments)
|
||
|
||
// if the input ended in newlines, the input must tokenize the
|
||
// same with or without those newlines
|
||
for i := len(input) - 1; i >= 0 && input[i] == '\n'; i-- {
|
||
checkSemi(t, input[0:i], want, 0)
|
||
checkSemi(t, input[0:i], want, ScanComments)
|
||
}
|
||
}
|
||
}
|
||
|
||
type segment struct {
|
||
srcline string // a line of source text
|
||
filename string // filename for current token; error message for invalid line directives
|
||
line, column int // line and column for current token; error position for invalid line directives
|
||
}
|
||
|
||
var segments = []segment{
|
||
// exactly one token per line since the test consumes one token per segment
|
||
{" line1", "TestLineDirectives", 1, 3},
|
||
{"\nline2", "TestLineDirectives", 2, 1},
|
||
{"\nline3 //line File1.go:100", "TestLineDirectives", 3, 1}, // bad line comment, ignored
|
||
{"\nline4", "TestLineDirectives", 4, 1},
|
||
{"\n//line File1.go:100\n line100", "File1.go", 100, 0},
|
||
{"\n//line \t :42\n line1", " \t ", 42, 0},
|
||
{"\n//line File2.go:200\n line200", "File2.go", 200, 0},
|
||
{"\n//line foo\t:42\n line42", "foo\t", 42, 0},
|
||
{"\n //line foo:42\n line43", "foo\t", 44, 0}, // bad line comment, ignored (use existing, prior filename)
|
||
{"\n//line foo 42\n line44", "foo\t", 46, 0}, // bad line comment, ignored (use existing, prior filename)
|
||
{"\n//line /bar:42\n line45", "/bar", 42, 0},
|
||
{"\n//line ./foo:42\n line46", "foo", 42, 0},
|
||
{"\n//line a/b/c/File1.go:100\n line100", "a/b/c/File1.go", 100, 0},
|
||
{"\n//line c:\\bar:42\n line200", "c:\\bar", 42, 0},
|
||
{"\n//line c:\\dir\\File1.go:100\n line201", "c:\\dir\\File1.go", 100, 0},
|
||
|
||
// tests for new line directive syntax
|
||
{"\n//line :100\na1", "", 100, 0}, // missing filename means empty filename
|
||
{"\n//line bar:100\nb1", "bar", 100, 0},
|
||
{"\n//line :100:10\nc1", "bar", 100, 10}, // missing filename means current filename
|
||
{"\n//line foo:100:10\nd1", "foo", 100, 10},
|
||
|
||
{"\n/*line :100*/a2", "", 100, 0}, // missing filename means empty filename
|
||
{"\n/*line bar:100*/b2", "bar", 100, 0},
|
||
{"\n/*line :100:10*/c2", "bar", 100, 10}, // missing filename means current filename
|
||
{"\n/*line foo:100:10*/d2", "foo", 100, 10},
|
||
{"\n/*line foo:100:10*/ e2", "foo", 100, 14}, // line-directive relative column
|
||
{"\n/*line foo:100:10*/\n\nf2", "foo", 102, 1}, // absolute column since on new line
|
||
}
|
||
|
||
var dirsegments = []segment{
|
||
// exactly one token per line since the test consumes one token per segment
|
||
{" line1", "TestLineDir/TestLineDirectives", 1, 3},
|
||
{"\n//line File1.go:100\n line100", "TestLineDir/File1.go", 100, 0},
|
||
}
|
||
|
||
var dirUnixSegments = []segment{
|
||
{"\n//line /bar:42\n line42", "/bar", 42, 0},
|
||
}
|
||
|
||
var dirWindowsSegments = []segment{
|
||
{"\n//line c:\\bar:42\n line42", "c:\\bar", 42, 0},
|
||
}
|
||
|
||
// Verify that line directives are interpreted correctly.
|
||
func TestLineDirectives(t *testing.T) {
|
||
testSegments(t, segments, "TestLineDirectives")
|
||
testSegments(t, dirsegments, "TestLineDir/TestLineDirectives")
|
||
if runtime.GOOS == "windows" {
|
||
testSegments(t, dirWindowsSegments, "TestLineDir/TestLineDirectives")
|
||
} else {
|
||
testSegments(t, dirUnixSegments, "TestLineDir/TestLineDirectives")
|
||
}
|
||
}
|
||
|
||
func testSegments(t *testing.T, segments []segment, filename string) {
|
||
var src string
|
||
for _, e := range segments {
|
||
src += e.srcline
|
||
}
|
||
|
||
// verify scan
|
||
var S Scanner
|
||
file := fset.AddFile(filename, fset.Base(), len(src))
|
||
S.Init(file, []byte(src), func(pos token.Position, msg string) { t.Error(Error{pos, msg}) }, dontInsertSemis)
|
||
for _, s := range segments {
|
||
p, _, lit := S.Scan()
|
||
pos := file.Position(p)
|
||
checkPos(t, lit, p, token.Position{
|
||
Filename: s.filename,
|
||
Offset: pos.Offset,
|
||
Line: s.line,
|
||
Column: s.column,
|
||
})
|
||
}
|
||
|
||
if S.ErrorCount != 0 {
|
||
t.Errorf("got %d errors", S.ErrorCount)
|
||
}
|
||
}
|
||
|
||
// The filename is used for the error message in these test cases.
|
||
// The first line directive is valid and used to control the expected error line.
|
||
var invalidSegments = []segment{
|
||
{"\n//line :1:1\n//line foo:42 extra text\ndummy", "invalid line number: 42 extra text", 1, 12},
|
||
{"\n//line :2:1\n//line foobar:\ndummy", "invalid line number: ", 2, 15},
|
||
{"\n//line :5:1\n//line :0\ndummy", "invalid line number: 0", 5, 9},
|
||
{"\n//line :10:1\n//line :1:0\ndummy", "invalid column number: 0", 10, 11},
|
||
{"\n//line :1:1\n//line :foo:0\ndummy", "invalid line number: 0", 1, 13}, // foo is considered part of the filename
|
||
}
|
||
|
||
// Verify that invalid line directives get the correct error message.
|
||
func TestInvalidLineDirectives(t *testing.T) {
|
||
// make source
|
||
var src string
|
||
for _, e := range invalidSegments {
|
||
src += e.srcline
|
||
}
|
||
|
||
// verify scan
|
||
var S Scanner
|
||
var s segment // current segment
|
||
file := fset.AddFile(filepath.Join("dir", "TestInvalidLineDirectives"), fset.Base(), len(src))
|
||
S.Init(file, []byte(src), func(pos token.Position, msg string) {
|
||
if msg != s.filename {
|
||
t.Errorf("got error %q; want %q", msg, s.filename)
|
||
}
|
||
if pos.Line != s.line || pos.Column != s.column {
|
||
t.Errorf("got position %d:%d; want %d:%d", pos.Line, pos.Column, s.line, s.column)
|
||
}
|
||
}, dontInsertSemis)
|
||
for _, s = range invalidSegments {
|
||
S.Scan()
|
||
}
|
||
|
||
if S.ErrorCount != len(invalidSegments) {
|
||
t.Errorf("got %d errors; want %d", S.ErrorCount, len(invalidSegments))
|
||
}
|
||
}
|
||
|
||
// Verify that initializing the same scanner more than once works correctly.
|
||
func TestInit(t *testing.T) {
|
||
var s Scanner
|
||
|
||
// 1st init
|
||
src1 := "if true { }"
|
||
f1 := fset.AddFile("src1", fset.Base(), len(src1))
|
||
s.Init(f1, []byte(src1), nil, dontInsertSemis)
|
||
if f1.Size() != len(src1) {
|
||
t.Errorf("bad file size: got %d, expected %d", f1.Size(), len(src1))
|
||
}
|
||
s.Scan() // if
|
||
s.Scan() // true
|
||
_, tok, _ := s.Scan() // {
|
||
if tok != token.LBRACE {
|
||
t.Errorf("bad token: got %s, expected %s", tok, token.LBRACE)
|
||
}
|
||
|
||
// 2nd init
|
||
src2 := "go true { ]"
|
||
f2 := fset.AddFile("src2", fset.Base(), len(src2))
|
||
s.Init(f2, []byte(src2), nil, dontInsertSemis)
|
||
if f2.Size() != len(src2) {
|
||
t.Errorf("bad file size: got %d, expected %d", f2.Size(), len(src2))
|
||
}
|
||
_, tok, _ = s.Scan() // go
|
||
if tok != token.GO {
|
||
t.Errorf("bad token: got %s, expected %s", tok, token.GO)
|
||
}
|
||
|
||
if s.ErrorCount != 0 {
|
||
t.Errorf("found %d errors", s.ErrorCount)
|
||
}
|
||
}
|
||
|
||
func TestStdErrorHandler(t *testing.T) {
|
||
const src = "@\n" + // illegal character, cause an error
|
||
"@ @\n" + // two errors on the same line
|
||
"//line File2:20\n" +
|
||
"@\n" + // different file, but same line
|
||
"//line File2:1\n" +
|
||
"@ @\n" + // same file, decreasing line number
|
||
"//line File1:1\n" +
|
||
"@ @ @" // original file, line 1 again
|
||
|
||
var list ErrorList
|
||
eh := func(pos token.Position, msg string) { list.Add(pos, msg) }
|
||
|
||
var s Scanner
|
||
s.Init(fset.AddFile("File1", fset.Base(), len(src)), []byte(src), eh, dontInsertSemis)
|
||
for {
|
||
if _, tok, _ := s.Scan(); tok == token.EOF {
|
||
break
|
||
}
|
||
}
|
||
|
||
if len(list) != s.ErrorCount {
|
||
t.Errorf("found %d errors, expected %d", len(list), s.ErrorCount)
|
||
}
|
||
|
||
if len(list) != 9 {
|
||
t.Errorf("found %d raw errors, expected 9", len(list))
|
||
PrintError(os.Stderr, list)
|
||
}
|
||
|
||
list.Sort()
|
||
if len(list) != 9 {
|
||
t.Errorf("found %d sorted errors, expected 9", len(list))
|
||
PrintError(os.Stderr, list)
|
||
}
|
||
|
||
list.RemoveMultiples()
|
||
if len(list) != 4 {
|
||
t.Errorf("found %d one-per-line errors, expected 4", len(list))
|
||
PrintError(os.Stderr, list)
|
||
}
|
||
}
|
||
|
||
type errorCollector struct {
|
||
cnt int // number of errors encountered
|
||
msg string // last error message encountered
|
||
pos token.Position // last error position encountered
|
||
}
|
||
|
||
func checkError(t *testing.T, src string, tok token.Token, pos int, lit, err string) {
|
||
var s Scanner
|
||
var h errorCollector
|
||
eh := func(pos token.Position, msg string) {
|
||
h.cnt++
|
||
h.msg = msg
|
||
h.pos = pos
|
||
}
|
||
s.Init(fset.AddFile("", fset.Base(), len(src)), []byte(src), eh, ScanComments|dontInsertSemis)
|
||
_, tok0, lit0 := s.Scan()
|
||
if tok0 != tok {
|
||
t.Errorf("%q: got %s, expected %s", src, tok0, tok)
|
||
}
|
||
if tok0 != token.ILLEGAL && lit0 != lit {
|
||
t.Errorf("%q: got literal %q, expected %q", src, lit0, lit)
|
||
}
|
||
cnt := 0
|
||
if err != "" {
|
||
cnt = 1
|
||
}
|
||
if h.cnt != cnt {
|
||
t.Errorf("%q: got cnt %d, expected %d", src, h.cnt, cnt)
|
||
}
|
||
if h.msg != err {
|
||
t.Errorf("%q: got msg %q, expected %q", src, h.msg, err)
|
||
}
|
||
if h.pos.Offset != pos {
|
||
t.Errorf("%q: got offset %d, expected %d", src, h.pos.Offset, pos)
|
||
}
|
||
}
|
||
|
||
var errors = []struct {
|
||
src string
|
||
tok token.Token
|
||
pos int
|
||
lit string
|
||
err string
|
||
}{
|
||
{"\a", token.ILLEGAL, 0, "", "illegal character U+0007"},
|
||
{`#`, token.ILLEGAL, 0, "", "illegal character U+0023 '#'"},
|
||
{`…`, token.ILLEGAL, 0, "", "illegal character U+2026 '…'"},
|
||
{"..", token.PERIOD, 0, "", ""}, // two periods, not invalid token (issue #28112)
|
||
{`' '`, token.CHAR, 0, `' '`, ""},
|
||
{`''`, token.CHAR, 0, `''`, "illegal rune literal"},
|
||
{`'12'`, token.CHAR, 0, `'12'`, "illegal rune literal"},
|
||
{`'123'`, token.CHAR, 0, `'123'`, "illegal rune literal"},
|
||
{`'\0'`, token.CHAR, 3, `'\0'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\07'`, token.CHAR, 4, `'\07'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\8'`, token.CHAR, 2, `'\8'`, "unknown escape sequence"},
|
||
{`'\08'`, token.CHAR, 3, `'\08'`, "illegal character U+0038 '8' in escape sequence"},
|
||
{`'\x'`, token.CHAR, 3, `'\x'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\x0'`, token.CHAR, 4, `'\x0'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\x0g'`, token.CHAR, 4, `'\x0g'`, "illegal character U+0067 'g' in escape sequence"},
|
||
{`'\u'`, token.CHAR, 3, `'\u'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\u0'`, token.CHAR, 4, `'\u0'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\u00'`, token.CHAR, 5, `'\u00'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\u000'`, token.CHAR, 6, `'\u000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\u000`, token.CHAR, 6, `'\u000`, "escape sequence not terminated"},
|
||
{`'\u0000'`, token.CHAR, 0, `'\u0000'`, ""},
|
||
{`'\U'`, token.CHAR, 3, `'\U'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U0'`, token.CHAR, 4, `'\U0'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U00'`, token.CHAR, 5, `'\U00'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U000'`, token.CHAR, 6, `'\U000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U0000'`, token.CHAR, 7, `'\U0000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U00000'`, token.CHAR, 8, `'\U00000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U000000'`, token.CHAR, 9, `'\U000000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U0000000'`, token.CHAR, 10, `'\U0000000'`, "illegal character U+0027 ''' in escape sequence"},
|
||
{`'\U0000000`, token.CHAR, 10, `'\U0000000`, "escape sequence not terminated"},
|
||
{`'\U00000000'`, token.CHAR, 0, `'\U00000000'`, ""},
|
||
{`'\Uffffffff'`, token.CHAR, 2, `'\Uffffffff'`, "escape sequence is invalid Unicode code point"},
|
||
{`'`, token.CHAR, 0, `'`, "rune literal not terminated"},
|
||
{`'\`, token.CHAR, 2, `'\`, "escape sequence not terminated"},
|
||
{"'\n", token.CHAR, 0, "'", "rune literal not terminated"},
|
||
{"'\n ", token.CHAR, 0, "'", "rune literal not terminated"},
|
||
{`""`, token.STRING, 0, `""`, ""},
|
||
{`"abc`, token.STRING, 0, `"abc`, "string literal not terminated"},
|
||
{"\"abc\n", token.STRING, 0, `"abc`, "string literal not terminated"},
|
||
{"\"abc\n ", token.STRING, 0, `"abc`, "string literal not terminated"},
|
||
{"``", token.STRING, 0, "``", ""},
|
||
{"`", token.STRING, 0, "`", "raw string literal not terminated"},
|
||
{"/**/", token.COMMENT, 0, "/**/", ""},
|
||
{"/*", token.COMMENT, 0, "/*", "comment not terminated"},
|
||
{"077", token.INT, 0, "077", ""},
|
||
{"078.", token.FLOAT, 0, "078.", ""},
|
||
{"07801234567.", token.FLOAT, 0, "07801234567.", ""},
|
||
{"078e0", token.FLOAT, 0, "078e0", ""},
|
||
{"0E", token.FLOAT, 2, "0E", "exponent has no digits"}, // issue 17621
|
||
{"078", token.INT, 2, "078", "invalid digit '8' in octal literal"},
|
||
{"07090000008", token.INT, 3, "07090000008", "invalid digit '9' in octal literal"},
|
||
{"0x", token.INT, 2, "0x", "hexadecimal literal has no digits"},
|
||
{"\"abc\x00def\"", token.STRING, 4, "\"abc\x00def\"", "illegal character NUL"},
|
||
{"\"abc\x80def\"", token.STRING, 4, "\"abc\x80def\"", "illegal UTF-8 encoding"},
|
||
{"\ufeff\ufeff", token.ILLEGAL, 3, "\ufeff\ufeff", "illegal byte order mark"}, // only first BOM is ignored
|
||
{"//\ufeff", token.COMMENT, 2, "//\ufeff", "illegal byte order mark"}, // only first BOM is ignored
|
||
{"'\ufeff" + `'`, token.CHAR, 1, "'\ufeff" + `'`, "illegal byte order mark"}, // only first BOM is ignored
|
||
{`"` + "abc\ufeffdef" + `"`, token.STRING, 4, `"` + "abc\ufeffdef" + `"`, "illegal byte order mark"}, // only first BOM is ignored
|
||
{"abc\x00def", token.IDENT, 3, "abc", "illegal character NUL"},
|
||
{"abc\x00", token.IDENT, 3, "abc", "illegal character NUL"},
|
||
{"“abc”", token.ILLEGAL, 0, "abc", `curly quotation mark '“' (use neutral '"')`},
|
||
}
|
||
|
||
func TestScanErrors(t *testing.T) {
|
||
for _, e := range errors {
|
||
checkError(t, e.src, e.tok, e.pos, e.lit, e.err)
|
||
}
|
||
}
|
||
|
||
// Verify that no comments show up as literal values when skipping comments.
|
||
func TestIssue10213(t *testing.T) {
|
||
const src = `
|
||
var (
|
||
A = 1 // foo
|
||
)
|
||
|
||
var (
|
||
B = 2
|
||
// foo
|
||
)
|
||
|
||
var C = 3 // foo
|
||
|
||
var D = 4
|
||
// foo
|
||
|
||
func anycode() {
|
||
// foo
|
||
}
|
||
`
|
||
var s Scanner
|
||
s.Init(fset.AddFile("", fset.Base(), len(src)), []byte(src), nil, 0)
|
||
for {
|
||
pos, tok, lit := s.Scan()
|
||
class := tokenclass(tok)
|
||
if lit != "" && class != keyword && class != literal && tok != token.SEMICOLON {
|
||
t.Errorf("%s: tok = %s, lit = %q", fset.Position(pos), tok, lit)
|
||
}
|
||
if tok <= token.EOF {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestIssue28112(t *testing.T) {
|
||
const src = "... .. 0.. .." // make sure to have stand-alone ".." immediately before EOF to test EOF behavior
|
||
tokens := []token.Token{token.ELLIPSIS, token.PERIOD, token.PERIOD, token.FLOAT, token.PERIOD, token.PERIOD, token.PERIOD, token.EOF}
|
||
var s Scanner
|
||
s.Init(fset.AddFile("", fset.Base(), len(src)), []byte(src), nil, 0)
|
||
for _, want := range tokens {
|
||
pos, got, lit := s.Scan()
|
||
if got != want {
|
||
t.Errorf("%s: got %s, want %s", fset.Position(pos), got, want)
|
||
}
|
||
// literals expect to have a (non-empty) literal string and we don't care about other tokens for this test
|
||
if tokenclass(got) == literal && lit == "" {
|
||
t.Errorf("%s: for %s got empty literal string", fset.Position(pos), got)
|
||
}
|
||
}
|
||
}
|
||
|
||
func BenchmarkScan(b *testing.B) {
|
||
b.StopTimer()
|
||
fset := token.NewFileSet()
|
||
file := fset.AddFile("", fset.Base(), len(source))
|
||
var s Scanner
|
||
b.StartTimer()
|
||
for i := 0; i < b.N; i++ {
|
||
s.Init(file, source, nil, ScanComments)
|
||
for {
|
||
_, tok, _ := s.Scan()
|
||
if tok == token.EOF {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
func BenchmarkScanFiles(b *testing.B) {
|
||
// Scan a few arbitrary large files, and one small one, to provide some
|
||
// variety in benchmarks.
|
||
for _, p := range []string{
|
||
"go/types/expr.go",
|
||
"go/parser/parser.go",
|
||
"net/http/server.go",
|
||
"go/scanner/errors.go",
|
||
} {
|
||
b.Run(p, func(b *testing.B) {
|
||
b.StopTimer()
|
||
filename := filepath.Join("..", "..", filepath.FromSlash(p))
|
||
src, err := os.ReadFile(filename)
|
||
if err != nil {
|
||
b.Fatal(err)
|
||
}
|
||
fset := token.NewFileSet()
|
||
file := fset.AddFile(filename, fset.Base(), len(src))
|
||
b.SetBytes(int64(len(src)))
|
||
var s Scanner
|
||
b.StartTimer()
|
||
for i := 0; i < b.N; i++ {
|
||
s.Init(file, src, nil, ScanComments)
|
||
for {
|
||
_, tok, _ := s.Scan()
|
||
if tok == token.EOF {
|
||
break
|
||
}
|
||
}
|
||
}
|
||
})
|
||
}
|
||
}
|
||
|
||
func TestNumbers(t *testing.T) {
|
||
for _, test := range []struct {
|
||
tok token.Token
|
||
src, tokens, err string
|
||
}{
|
||
// binaries
|
||
{token.INT, "0b0", "0b0", ""},
|
||
{token.INT, "0b1010", "0b1010", ""},
|
||
{token.INT, "0B1110", "0B1110", ""},
|
||
|
||
{token.INT, "0b", "0b", "binary literal has no digits"},
|
||
{token.INT, "0b0190", "0b0190", "invalid digit '9' in binary literal"},
|
||
{token.INT, "0b01a0", "0b01 a0", ""}, // only accept 0-9
|
||
|
||
{token.FLOAT, "0b.", "0b.", "invalid radix point in binary literal"},
|
||
{token.FLOAT, "0b.1", "0b.1", "invalid radix point in binary literal"},
|
||
{token.FLOAT, "0b1.0", "0b1.0", "invalid radix point in binary literal"},
|
||
{token.FLOAT, "0b1e10", "0b1e10", "'e' exponent requires decimal mantissa"},
|
||
{token.FLOAT, "0b1P-1", "0b1P-1", "'P' exponent requires hexadecimal mantissa"},
|
||
|
||
{token.IMAG, "0b10i", "0b10i", ""},
|
||
{token.IMAG, "0b10.0i", "0b10.0i", "invalid radix point in binary literal"},
|
||
|
||
// octals
|
||
{token.INT, "0o0", "0o0", ""},
|
||
{token.INT, "0o1234", "0o1234", ""},
|
||
{token.INT, "0O1234", "0O1234", ""},
|
||
|
||
{token.INT, "0o", "0o", "octal literal has no digits"},
|
||
{token.INT, "0o8123", "0o8123", "invalid digit '8' in octal literal"},
|
||
{token.INT, "0o1293", "0o1293", "invalid digit '9' in octal literal"},
|
||
{token.INT, "0o12a3", "0o12 a3", ""}, // only accept 0-9
|
||
|
||
{token.FLOAT, "0o.", "0o.", "invalid radix point in octal literal"},
|
||
{token.FLOAT, "0o.2", "0o.2", "invalid radix point in octal literal"},
|
||
{token.FLOAT, "0o1.2", "0o1.2", "invalid radix point in octal literal"},
|
||
{token.FLOAT, "0o1E+2", "0o1E+2", "'E' exponent requires decimal mantissa"},
|
||
{token.FLOAT, "0o1p10", "0o1p10", "'p' exponent requires hexadecimal mantissa"},
|
||
|
||
{token.IMAG, "0o10i", "0o10i", ""},
|
||
{token.IMAG, "0o10e0i", "0o10e0i", "'e' exponent requires decimal mantissa"},
|
||
|
||
// 0-octals
|
||
{token.INT, "0", "0", ""},
|
||
{token.INT, "0123", "0123", ""},
|
||
|
||
{token.INT, "08123", "08123", "invalid digit '8' in octal literal"},
|
||
{token.INT, "01293", "01293", "invalid digit '9' in octal literal"},
|
||
{token.INT, "0F.", "0 F .", ""}, // only accept 0-9
|
||
{token.INT, "0123F.", "0123 F .", ""},
|
||
{token.INT, "0123456x", "0123456 x", ""},
|
||
|
||
// decimals
|
||
{token.INT, "1", "1", ""},
|
||
{token.INT, "1234", "1234", ""},
|
||
|
||
{token.INT, "1f", "1 f", ""}, // only accept 0-9
|
||
|
||
{token.IMAG, "0i", "0i", ""},
|
||
{token.IMAG, "0678i", "0678i", ""},
|
||
|
||
// decimal floats
|
||
{token.FLOAT, "0.", "0.", ""},
|
||
{token.FLOAT, "123.", "123.", ""},
|
||
{token.FLOAT, "0123.", "0123.", ""},
|
||
|
||
{token.FLOAT, ".0", ".0", ""},
|
||
{token.FLOAT, ".123", ".123", ""},
|
||
{token.FLOAT, ".0123", ".0123", ""},
|
||
|
||
{token.FLOAT, "0.0", "0.0", ""},
|
||
{token.FLOAT, "123.123", "123.123", ""},
|
||
{token.FLOAT, "0123.0123", "0123.0123", ""},
|
||
|
||
{token.FLOAT, "0e0", "0e0", ""},
|
||
{token.FLOAT, "123e+0", "123e+0", ""},
|
||
{token.FLOAT, "0123E-1", "0123E-1", ""},
|
||
|
||
{token.FLOAT, "0.e+1", "0.e+1", ""},
|
||
{token.FLOAT, "123.E-10", "123.E-10", ""},
|
||
{token.FLOAT, "0123.e123", "0123.e123", ""},
|
||
|
||
{token.FLOAT, ".0e-1", ".0e-1", ""},
|
||
{token.FLOAT, ".123E+10", ".123E+10", ""},
|
||
{token.FLOAT, ".0123E123", ".0123E123", ""},
|
||
|
||
{token.FLOAT, "0.0e1", "0.0e1", ""},
|
||
{token.FLOAT, "123.123E-10", "123.123E-10", ""},
|
||
{token.FLOAT, "0123.0123e+456", "0123.0123e+456", ""},
|
||
|
||
{token.FLOAT, "0e", "0e", "exponent has no digits"},
|
||
{token.FLOAT, "0E+", "0E+", "exponent has no digits"},
|
||
{token.FLOAT, "1e+f", "1e+ f", "exponent has no digits"},
|
||
{token.FLOAT, "0p0", "0p0", "'p' exponent requires hexadecimal mantissa"},
|
||
{token.FLOAT, "1.0P-1", "1.0P-1", "'P' exponent requires hexadecimal mantissa"},
|
||
|
||
{token.IMAG, "0.i", "0.i", ""},
|
||
{token.IMAG, ".123i", ".123i", ""},
|
||
{token.IMAG, "123.123i", "123.123i", ""},
|
||
{token.IMAG, "123e+0i", "123e+0i", ""},
|
||
{token.IMAG, "123.E-10i", "123.E-10i", ""},
|
||
{token.IMAG, ".123E+10i", ".123E+10i", ""},
|
||
|
||
// hexadecimals
|
||
{token.INT, "0x0", "0x0", ""},
|
||
{token.INT, "0x1234", "0x1234", ""},
|
||
{token.INT, "0xcafef00d", "0xcafef00d", ""},
|
||
{token.INT, "0XCAFEF00D", "0XCAFEF00D", ""},
|
||
|
||
{token.INT, "0x", "0x", "hexadecimal literal has no digits"},
|
||
{token.INT, "0x1g", "0x1 g", ""},
|
||
|
||
{token.IMAG, "0xf00i", "0xf00i", ""},
|
||
|
||
// hexadecimal floats
|
||
{token.FLOAT, "0x0p0", "0x0p0", ""},
|
||
{token.FLOAT, "0x12efp-123", "0x12efp-123", ""},
|
||
{token.FLOAT, "0xABCD.p+0", "0xABCD.p+0", ""},
|
||
{token.FLOAT, "0x.0189P-0", "0x.0189P-0", ""},
|
||
{token.FLOAT, "0x1.ffffp+1023", "0x1.ffffp+1023", ""},
|
||
|
||
{token.FLOAT, "0x.", "0x.", "hexadecimal literal has no digits"},
|
||
{token.FLOAT, "0x0.", "0x0.", "hexadecimal mantissa requires a 'p' exponent"},
|
||
{token.FLOAT, "0x.0", "0x.0", "hexadecimal mantissa requires a 'p' exponent"},
|
||
{token.FLOAT, "0x1.1", "0x1.1", "hexadecimal mantissa requires a 'p' exponent"},
|
||
{token.FLOAT, "0x1.1e0", "0x1.1e0", "hexadecimal mantissa requires a 'p' exponent"},
|
||
{token.FLOAT, "0x1.2gp1a", "0x1.2 gp1a", "hexadecimal mantissa requires a 'p' exponent"},
|
||
{token.FLOAT, "0x0p", "0x0p", "exponent has no digits"},
|
||
{token.FLOAT, "0xeP-", "0xeP-", "exponent has no digits"},
|
||
{token.FLOAT, "0x1234PAB", "0x1234P AB", "exponent has no digits"},
|
||
{token.FLOAT, "0x1.2p1a", "0x1.2p1 a", ""},
|
||
|
||
{token.IMAG, "0xf00.bap+12i", "0xf00.bap+12i", ""},
|
||
|
||
// separators
|
||
{token.INT, "0b_1000_0001", "0b_1000_0001", ""},
|
||
{token.INT, "0o_600", "0o_600", ""},
|
||
{token.INT, "0_466", "0_466", ""},
|
||
{token.INT, "1_000", "1_000", ""},
|
||
{token.FLOAT, "1_000.000_1", "1_000.000_1", ""},
|
||
{token.IMAG, "10e+1_2_3i", "10e+1_2_3i", ""},
|
||
{token.INT, "0x_f00d", "0x_f00d", ""},
|
||
{token.FLOAT, "0x_f00d.0p1_2", "0x_f00d.0p1_2", ""},
|
||
|
||
{token.INT, "0b__1000", "0b__1000", "'_' must separate successive digits"},
|
||
{token.INT, "0o60___0", "0o60___0", "'_' must separate successive digits"},
|
||
{token.INT, "0466_", "0466_", "'_' must separate successive digits"},
|
||
{token.FLOAT, "1_.", "1_.", "'_' must separate successive digits"},
|
||
{token.FLOAT, "0._1", "0._1", "'_' must separate successive digits"},
|
||
{token.FLOAT, "2.7_e0", "2.7_e0", "'_' must separate successive digits"},
|
||
{token.IMAG, "10e+12_i", "10e+12_i", "'_' must separate successive digits"},
|
||
{token.INT, "0x___0", "0x___0", "'_' must separate successive digits"},
|
||
{token.FLOAT, "0x1.0_p0", "0x1.0_p0", "'_' must separate successive digits"},
|
||
} {
|
||
var s Scanner
|
||
var err string
|
||
s.Init(fset.AddFile("", fset.Base(), len(test.src)), []byte(test.src), func(_ token.Position, msg string) {
|
||
if err == "" {
|
||
err = msg
|
||
}
|
||
}, 0)
|
||
for i, want := range strings.Split(test.tokens, " ") {
|
||
err = ""
|
||
_, tok, lit := s.Scan()
|
||
|
||
// compute lit where for tokens where lit is not defined
|
||
switch tok {
|
||
case token.PERIOD:
|
||
lit = "."
|
||
case token.ADD:
|
||
lit = "+"
|
||
case token.SUB:
|
||
lit = "-"
|
||
}
|
||
|
||
if i == 0 {
|
||
if tok != test.tok {
|
||
t.Errorf("%q: got token %s; want %s", test.src, tok, test.tok)
|
||
}
|
||
if err != test.err {
|
||
t.Errorf("%q: got error %q; want %q", test.src, err, test.err)
|
||
}
|
||
}
|
||
|
||
if lit != want {
|
||
t.Errorf("%q: got literal %q (%s); want %s", test.src, lit, tok, want)
|
||
}
|
||
}
|
||
|
||
// make sure we read all
|
||
_, tok, _ := s.Scan()
|
||
if tok == token.SEMICOLON {
|
||
_, tok, _ = s.Scan()
|
||
}
|
||
if tok != token.EOF {
|
||
t.Errorf("%q: got %s; want EOF", test.src, tok)
|
||
}
|
||
}
|
||
}
|