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Parsing and testing boolean literals.

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Signed-off-by: jmug <u.g.a.mariano@gmail.com>
This commit is contained in:
Mariano Uvalle 2025-01-04 19:16:22 -08:00
parent 5fa7b2481a
commit c417e90f36
3 changed files with 170 additions and 21 deletions
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6
pkg/parser/parser.go
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@ -35,6 +35,8 @@ func New(l *lexer.Lexer) *Parser {
p.registerPrefix(token.INT, p.parseIntegerLiteral)
p.registerPrefix(token.MINUS, p.parsePrefixExpression)
p.registerPrefix(token.BANG, p.parsePrefixExpression)
p.registerPrefix(token.TRUE, p.parseBoolean)
p.registerPrefix(token.FALSE, p.parseBoolean)
// Infix registrations
p.registerInfix(token.PLUS, p.parseInfixExpression)
p.registerInfix(token.MINUS, p.parseInfixExpression)
@ -148,6 +150,10 @@ func (p *Parser) parseIntegerLiteral() ast.Expression {
return exp
}
func (p *Parser) parseBoolean() ast.Expression {
return &ast.Boolean{Token: p.curToken, Value: p.curTokenIs(token.TRUE)}
}
func (p *Parser) parsePrefixExpression() ast.Expression {
exp := &ast.PrefixExpression{
Token: p.curToken,