40 lines
1.0 KiB
Go
40 lines
1.0 KiB
Go
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/* NOTE(tijani):
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* l_ in variables names stand for local_ identifiers. The reason is because I do not like
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* single letter variable names, but I also do not want to confuse the myself
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* when I come back to reading this code after a while hence l_ to signify that it is local to that function.
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*/
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package parser
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import (
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"monkey/ast"
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"monkey/lexer"
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"monkey/token"
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)
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type Parser struct {
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l_lexer *lexer.Lexer
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current_token token.Token
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peek_token token.Token
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}
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func (l_parser *Parser) next_token(){
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l_parser.current_token = l_parser.peek_token
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l_parser.peek_token = l_parser.l_lexer.NextToken()
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}
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func (p *Parser) ParseProgram() *ast.Program {
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return nil
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}
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func New(lexer *lexer.Lexer) *Parser {
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l_parser := &Parser {l_lexer: lexer}
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// Read two tokens so current_token and peek_token are set.
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// NOTE(tijani): the first time l_parser.next_token() is called, current_token and peek_token will be pointing to the same token.
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l_parser.next_token()
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l_parser.next_token()
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return l_parser
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}
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