38 lines
833 B
Go
38 lines
833 B
Go
package ast
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import (
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"git.akyoto.dev/cli/q/src/build/expression"
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"git.akyoto.dev/cli/q/src/build/token"
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)
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// parseSwitch generates the cases inside a switch statement.
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func parseSwitch(tokens token.List, source []byte) ([]Case, error) {
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var cases []Case
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err := EachInstruction(tokens, func(caseTokens token.List) error {
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blockStart, _, body, err := block(caseTokens, source)
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if err != nil {
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return err
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}
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conditionTokens := caseTokens[:blockStart]
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var condition *expression.Expression
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if len(conditionTokens) == 1 && conditionTokens[0].Kind == token.Identifier && conditionTokens[0].Text(source) == "_" {
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condition = nil
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} else {
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condition = expression.Parse(conditionTokens)
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}
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cases = append(cases, Case{
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Condition: condition,
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Body: body,
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})
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return nil
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})
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return cases, err
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}
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