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go/parser: imaginary constants and ! may start an expression

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Complete list of tokens that can start a top-level expression.

R=rsc
CC=golang-dev
https://golang.org/cl/5671074
This commit is contained in:
Robert Griesemer 2012-02-16 14:13:31 -08:00
parent 3908467b1f
commit f43d2b7fa8
1 changed files with 4 additions and 4 deletions
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8
src/pkg/go/parser/parser.go
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@ -1861,10 +1861,10 @@ func (p *parser) parseStmt() (s ast.Stmt) {
case token.CONST, token.TYPE, token.VAR:
s = &ast.DeclStmt{Decl: p.parseDecl()}
case
// tokens that may start a top-level expression
token.IDENT, token.INT, token.FLOAT, token.CHAR, token.STRING, token.FUNC, token.LPAREN, // operand
token.LBRACK, token.STRUCT, // composite type
token.MUL, token.AND, token.ARROW, token.ADD, token.SUB, token.XOR: // unary operators
// tokens that may start an expression
token.IDENT, token.INT, token.FLOAT, token.IMAG, token.CHAR, token.STRING, token.FUNC, token.LPAREN, // operands
token.LBRACK, token.STRUCT, // composite types
token.ADD, token.SUB, token.MUL, token.AND, token.XOR, token.ARROW, token.NOT: // unary operators
s, _ = p.parseSimpleStmt(labelOk)
// because of the required look-ahead, labeled statements are
// parsed by parseSimpleStmt - don't expect a semicolon after