tijani
c7dbccbe71
git-svn-id: https://svn.tlawal.org/svn/monkey@14 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
36 lines
687 B
Go
36 lines
687 B
Go
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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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 New(l_lexer *lexer.Lexer) *Parser {
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l_parser := &Parser{lexer: l_lexer}
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// Read two tokens, one for curren_token and another for peek_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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// When this is first called, current_token and peek_token should point to the same
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// token
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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.lexer.NextToken()
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}
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func (l_parser *Parser) ParseProgram() *ast.Program {
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return nil
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}
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