コード例 #1
0
ファイル: parser.go プロジェクト: flakio/notify
// rawBlock : openRawBlock content endRawBlock
// openRawBlock : OPEN_RAW_BLOCK helperName param* hash? CLOSE_RAW_BLOCK
// endRawBlock : OPEN_END_RAW_BLOCK helperName CLOSE_RAW_BLOCK
func (p *parser) parseRawBlock() *ast.BlockStatement {
	// OPEN_RAW_BLOCK
	tok := p.shift()

	result := ast.NewBlockStatement(tok.Pos, tok.Line)

	// helperName param* hash?
	result.Expression = p.parseExpression(tok)

	openName := result.Expression.Canonical()

	// CLOSE_RAW_BLOCK
	tok = p.shift()
	if tok.Kind != lexer.TokenCloseRawBlock {
		errExpected(lexer.TokenCloseRawBlock, tok)
	}

	// content
	// @todo Is content mandatory in a raw block ?
	content := p.parseContent()

	program := ast.NewProgram(tok.Pos, tok.Line)
	program.AddStatement(content)

	result.Program = program

	// OPEN_END_RAW_BLOCK
	tok = p.shift()
	if tok.Kind != lexer.TokenOpenEndRawBlock {
		// should never happen as it is caught by lexer
		errExpected(lexer.TokenOpenEndRawBlock, tok)
	}

	// helperName
	endId := p.parseHelperName()

	closeName, ok := ast.HelperNameStr(endId)
	if !ok {
		errNode(endId, "Erroneous closing expression")
	}

	if openName != closeName {
		errNode(endId, fmt.Sprintf("%s doesn't match %s", openName, closeName))
	}

	// CLOSE_RAW_BLOCK
	tok = p.shift()
	if tok.Kind != lexer.TokenCloseRawBlock {
		errExpected(lexer.TokenCloseRawBlock, tok)
	}

	return result
}
コード例 #2
0
ファイル: parser.go プロジェクト: flakio/notify
// helperName param* hash? blockParams?
func (p *parser) parseOpenBlockExpression(tok *lexer.Token) (*ast.BlockStatement, []string) {
	var blockParams []string

	result := ast.NewBlockStatement(tok.Pos, tok.Line)

	// helperName param* hash?
	result.Expression = p.parseExpression(tok)

	// blockParams?
	if p.isBlockParams() {
		blockParams = p.parseBlockParams()
	}

	// named returned values
	return result, blockParams
}