Building Pryzm.
Writings here and contact details here.
Building Pryzm.
Writings here and contact details here.
Despite following the text word for word, the tests for operator precedence parsing fail due to whitespaces. This is an example test.
tests := []struct {
input string
expected string
}{
{
"-1 * 2 + 3",
"(((-1) * 2) + 3)",
},
}
The output of go test -v -run TestOperatorPrecedenceParsing ./parser
indicates an issue with whitespaces.
expected="(((-1) * 2) + 3)", got="(((-1)*2)+3)"
The tracing statements when including defer
in parser.go
are as expected, and are
BEGIN parseExpressionStatement
BEGIN parseExpression
BEGIN parsePrefixExpression
BEGIN parseExpression
BEGIN parseIntegerLiteral
END parseIntegerLiteral
END parseExpression
END parsePrefixExpression
BEGIN parseInfixExpression
BEGIN parseExpression
BEGIN parseIntegerLiteral
END parseIntegerLiteral
END parseExpression
END parseInfixExpression
BEGIN parseInfixExpression
BEGIN parseExpression
BEGIN parseIntegerLiteral
END parseIntegerLiteral
END parseExpression
END parseInfixExpression
END parseExpression
END parseExpressionStatement
The tests pass after removing the whitespaces from the test expected string, but this is not a viable solution.
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